From 651fb20c71b0c5fb76767ab90122d89f48d2a4db Mon Sep 17 00:00:00 2001 From: Tom Rees Date: Fri, 26 Oct 2012 16:52:19 +0100 Subject: [PATCH] Switched from CSS to LESS in the preprocessor. --- app/activityapi.coffee | 1 + .../styles/{activity.css => activity.less} | 0 .../styles/{dashboard.css => dashboard.less} | 1 + app/views/styles/{github.css => github.less} | 0 .../styles/{rickshaw.css => rickshaw.less} | 0 config.coffee | 2 +- node_modules/less-brunch/CHANGELOG.md | 9 + node_modules/less-brunch/README.md | 11 + node_modules/less-brunch/lib/index.js | 47 + .../less-brunch/node_modules/.bin/cake | 1 + .../less-brunch/node_modules/.bin/coffee | 1 + .../less-brunch/node_modules/.bin/lessc | 1 + .../node_modules/coffee-script/LICENSE | 22 + .../node_modules/coffee-script/README | 51 + .../node_modules/coffee-script/Rakefile | 78 + .../node_modules/coffee-script/bin/cake | 7 + .../node_modules/coffee-script/bin/coffee | 7 + .../coffee-script/extras/jsl.conf | 44 + .../lib/coffee-script/browser.js | 74 + .../coffee-script/lib/coffee-script/cake.js | 99 + .../lib/coffee-script/coffee-script.js | 150 + .../lib/coffee-script/command.js | 442 +++ .../lib/coffee-script/grammar.js | 592 +++ .../lib/coffee-script/helpers.js | 72 + .../coffee-script/lib/coffee-script/index.js | 10 + .../coffee-script/lib/coffee-script/lexer.js | 686 ++++ .../coffee-script/lib/coffee-script/nodes.js | 2514 ++++++++++++ .../lib/coffee-script/optparse.js | 122 + .../coffee-script/lib/coffee-script/parser.js | 674 ++++ .../coffee-script/lib/coffee-script/repl.js | 149 + .../lib/coffee-script/rewriter.js | 301 ++ .../coffee-script/lib/coffee-script/scope.js | 124 + .../node_modules/coffee-script/package.json | 31 + .../less-brunch/node_modules/less/CHANGELOG | 26 + .../less-brunch/node_modules/less/LICENSE | 179 + .../less-brunch/node_modules/less/Makefile | 75 + .../less-brunch/node_modules/less/README.md | 20 + .../less/benchmark/less-benchmark.js | 47 + .../less-brunch/node_modules/less/bin/lessc | 139 + .../node_modules/less/dist/less-1.1.0.js | 2695 +++++++++++++ .../node_modules/less/dist/less-1.1.0.min.js | 16 + .../node_modules/less/dist/less-1.1.1.js | 2710 +++++++++++++ .../node_modules/less/dist/less-1.1.1.min.js | 16 + .../node_modules/less/dist/less-1.1.2.js | 2712 +++++++++++++ .../node_modules/less/dist/less-1.1.2.min.js | 16 + .../node_modules/less/dist/less-1.1.3.js | 2721 +++++++++++++ .../node_modules/less/dist/less-1.1.3.min.js | 16 + .../node_modules/less/dist/less-1.1.4.js | 2769 +++++++++++++ .../node_modules/less/dist/less-1.1.4.min.js | 16 + .../node_modules/less/dist/less-1.1.5.js | 2805 +++++++++++++ .../node_modules/less/dist/less-1.1.5.min.js | 9 + .../node_modules/less/dist/less-1.1.6.js | 3004 ++++++++++++++ .../node_modules/less/dist/less-1.1.6.min.js | 9 + .../node_modules/less/dist/less-1.2.0.js | 3293 ++++++++++++++++ .../node_modules/less/dist/less-1.2.0.min.js | 9 + .../node_modules/less/dist/less-1.2.1.js | 3318 ++++++++++++++++ .../node_modules/less/dist/less-1.2.1.min.js | 9 + .../node_modules/less/dist/less-1.2.2.js | 3337 ++++++++++++++++ .../node_modules/less/dist/less-1.2.2.min.js | 9 + .../node_modules/less/dist/less-1.3.0.js | 3478 +++++++++++++++++ .../node_modules/less/dist/less-1.3.0.min.js | 9 + .../less/dist/less-rhino-1.1.3.js | 2460 ++++++++++++ .../less/dist/less-rhino-1.1.5.js | 2481 ++++++++++++ .../less-brunch/node_modules/less/index.html | 10 + .../node_modules/less/lib/less/browser.js | 380 ++ .../node_modules/less/lib/less/colors.js | 151 + .../node_modules/less/lib/less/cssmin.js | 355 ++ .../node_modules/less/lib/less/functions.js | 228 ++ .../node_modules/less/lib/less/index.js | 148 + .../node_modules/less/lib/less/parser.js | 1305 +++++++ .../node_modules/less/lib/less/rhino.js | 62 + .../node_modules/less/lib/less/tree.js | 17 + .../node_modules/less/lib/less/tree/alpha.js | 17 + .../less/lib/less/tree/anonymous.js | 13 + .../less/lib/less/tree/assignment.js | 17 + .../node_modules/less/lib/less/tree/call.js | 48 + .../node_modules/less/lib/less/tree/color.js | 101 + .../less/lib/less/tree/comment.js | 14 + .../less/lib/less/tree/condition.js | 42 + .../less/lib/less/tree/dimension.js | 49 + .../less/lib/less/tree/directive.js | 35 + .../less/lib/less/tree/element.js | 47 + .../less/lib/less/tree/expression.js | 23 + .../node_modules/less/lib/less/tree/import.js | 79 + .../less/lib/less/tree/javascript.js | 51 + .../less/lib/less/tree/keyword.js | 19 + .../node_modules/less/lib/less/tree/media.js | 114 + .../node_modules/less/lib/less/tree/mixin.js | 135 + .../less/lib/less/tree/operation.js | 32 + .../node_modules/less/lib/less/tree/paren.js | 16 + .../node_modules/less/lib/less/tree/quoted.js | 29 + .../node_modules/less/lib/less/tree/rule.js | 42 + .../less/lib/less/tree/ruleset.js | 216 + .../less/lib/less/tree/selector.js | 42 + .../node_modules/less/lib/less/tree/url.js | 25 + .../node_modules/less/lib/less/tree/value.js | 24 + .../less/lib/less/tree/variable.js | 26 + .../node_modules/less/package.json | 13 + .../node_modules/less/test/css/colors.css | 58 + .../node_modules/less/test/css/comments.css | 56 + .../node_modules/less/test/css/css-3.css | 58 + .../less/test/css/css-escapes.css | 20 + .../node_modules/less/test/css/css.css | 89 + .../node_modules/less/test/css/functions.css | 43 + .../node_modules/less/test/css/ie-filters.css | 5 + .../node_modules/less/test/css/import.css | 23 + .../node_modules/less/test/css/javascript.css | 22 + .../node_modules/less/test/css/lazy-eval.css | 3 + .../node_modules/less/test/css/media.css | 79 + .../less/test/css/mixins-args.css | 76 + .../less/test/css/mixins-closure.css | 9 + .../less/test/css/mixins-guards.css | 58 + .../less/test/css/mixins-important.css | 17 + .../less/test/css/mixins-nested.css | 14 + .../less/test/css/mixins-pattern.css | 47 + .../node_modules/less/test/css/mixins.css | 71 + .../node_modules/less/test/css/operations.css | 49 + .../node_modules/less/test/css/parens.css | 20 + .../node_modules/less/test/css/rulesets.css | 33 + .../node_modules/less/test/css/scope.css | 15 + .../node_modules/less/test/css/selectors.css | 69 + .../node_modules/less/test/css/strings.css | 40 + .../node_modules/less/test/css/variables.css | 27 + .../node_modules/less/test/css/whitespace.css | 38 + .../node_modules/less/test/less-test.js | 73 + .../less/test/less/import/import-test-d.css | 1 + node_modules/less-brunch/package.json | 27 + node_modules/less-brunch/setup.js | 22 + node_modules/less-brunch/src/index.coffee | 25 + node_modules/less-brunch/test/common.js | 2 + node_modules/less-brunch/test/plugin_test.js | 37 + package.json | 1 + 132 files changed, 49877 insertions(+), 1 deletion(-) rename app/views/styles/{activity.css => activity.less} (100%) rename app/views/styles/{dashboard.css => dashboard.less} (99%) rename app/views/styles/{github.css => github.less} (100%) rename app/views/styles/{rickshaw.css => rickshaw.less} (100%) create mode 100644 node_modules/less-brunch/CHANGELOG.md create mode 100644 node_modules/less-brunch/README.md create mode 100644 node_modules/less-brunch/lib/index.js create mode 120000 node_modules/less-brunch/node_modules/.bin/cake create mode 120000 node_modules/less-brunch/node_modules/.bin/coffee create mode 120000 node_modules/less-brunch/node_modules/.bin/lessc create mode 100644 node_modules/less-brunch/node_modules/coffee-script/LICENSE create mode 100644 node_modules/less-brunch/node_modules/coffee-script/README create mode 100644 node_modules/less-brunch/node_modules/coffee-script/Rakefile create mode 100755 node_modules/less-brunch/node_modules/coffee-script/bin/cake create mode 100755 node_modules/less-brunch/node_modules/coffee-script/bin/coffee create mode 100644 node_modules/less-brunch/node_modules/coffee-script/extras/jsl.conf create mode 100644 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/browser.js create mode 100644 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/cake.js create mode 100644 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/coffee-script.js create mode 100644 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/command.js create mode 100644 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/grammar.js create mode 100644 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/helpers.js create mode 100644 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/index.js create mode 100644 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/lexer.js create mode 100644 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/nodes.js create mode 100644 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/optparse.js create mode 100755 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/parser.js create mode 100644 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/repl.js create mode 100644 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/rewriter.js create mode 100644 node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/scope.js create mode 100644 node_modules/less-brunch/node_modules/coffee-script/package.json create mode 100644 node_modules/less-brunch/node_modules/less/CHANGELOG create mode 100644 node_modules/less-brunch/node_modules/less/LICENSE create mode 100644 node_modules/less-brunch/node_modules/less/Makefile create mode 100644 node_modules/less-brunch/node_modules/less/README.md create mode 100644 node_modules/less-brunch/node_modules/less/benchmark/less-benchmark.js create mode 100755 node_modules/less-brunch/node_modules/less/bin/lessc create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.0.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.0.min.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.1.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.1.min.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.2.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.2.min.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.3.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.3.min.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.4.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.4.min.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.5.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.5.min.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.6.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.1.6.min.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.2.0.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.2.0.min.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.2.1.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.2.1.min.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.2.2.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.2.2.min.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.3.0.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-1.3.0.min.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-rhino-1.1.3.js create mode 100644 node_modules/less-brunch/node_modules/less/dist/less-rhino-1.1.5.js create mode 100644 node_modules/less-brunch/node_modules/less/index.html create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/browser.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/colors.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/cssmin.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/functions.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/index.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/parser.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/rhino.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/alpha.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/anonymous.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/assignment.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/call.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/color.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/comment.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/condition.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/dimension.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/directive.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/element.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/expression.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/import.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/javascript.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/keyword.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/media.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/mixin.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/operation.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/paren.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/quoted.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/rule.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/ruleset.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/selector.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/url.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/value.js create mode 100644 node_modules/less-brunch/node_modules/less/lib/less/tree/variable.js create mode 100644 node_modules/less-brunch/node_modules/less/package.json create mode 100644 node_modules/less-brunch/node_modules/less/test/css/colors.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/comments.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/css-3.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/css-escapes.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/css.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/functions.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/ie-filters.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/import.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/javascript.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/lazy-eval.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/media.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/mixins-args.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/mixins-closure.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/mixins-guards.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/mixins-important.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/mixins-nested.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/mixins-pattern.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/mixins.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/operations.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/parens.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/rulesets.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/scope.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/selectors.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/strings.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/variables.css create mode 100644 node_modules/less-brunch/node_modules/less/test/css/whitespace.css create mode 100644 node_modules/less-brunch/node_modules/less/test/less-test.js create mode 100644 node_modules/less-brunch/node_modules/less/test/less/import/import-test-d.css create mode 100644 node_modules/less-brunch/package.json create mode 100644 node_modules/less-brunch/setup.js create mode 100644 node_modules/less-brunch/src/index.coffee create mode 100644 node_modules/less-brunch/test/common.js create mode 100644 node_modules/less-brunch/test/plugin_test.js diff --git a/app/activityapi.coffee b/app/activityapi.coffee index 1db26d9..6becd62 100644 --- a/app/activityapi.coffee +++ b/app/activityapi.coffee @@ -2,6 +2,7 @@ class ActivityApi extends Backbone.Model url: 'http://activityapi.herokuapp.com/api/1' #url: 'http://localhost:5000/api/1' + ## Methods ## ======= ajaxHistoryGithub: (repos, callback) -> diff --git a/app/views/styles/activity.css b/app/views/styles/activity.less similarity index 100% rename from app/views/styles/activity.css rename to app/views/styles/activity.less diff --git a/app/views/styles/dashboard.css b/app/views/styles/dashboard.less similarity index 99% rename from app/views/styles/dashboard.css rename to app/views/styles/dashboard.less index 0fa7746..ec738da 100644 --- a/app/views/styles/dashboard.css +++ b/app/views/styles/dashboard.less @@ -115,3 +115,4 @@ background: #fcf; border: 1px solid #000; } + diff --git a/app/views/styles/github.css b/app/views/styles/github.less similarity index 100% rename from app/views/styles/github.css rename to app/views/styles/github.less diff --git a/app/views/styles/rickshaw.css b/app/views/styles/rickshaw.less similarity index 100% rename from app/views/styles/rickshaw.css rename to app/views/styles/rickshaw.less diff --git a/config.coffee b/config.coffee index fd04905..ea48440 100644 --- a/config.coffee +++ b/config.coffee @@ -31,7 +31,7 @@ exports.config = ] stylesheets: - defaultExtension: 'css' + defaultExtension: 'less' joinTo: 'stylesheets/app.css' order: before: ['vendor/styles/bootstrap.min.css'] diff --git a/node_modules/less-brunch/CHANGELOG.md b/node_modules/less-brunch/CHANGELOG.md new file mode 100644 index 0000000..0679a9f --- /dev/null +++ b/node_modules/less-brunch/CHANGELOG.md @@ -0,0 +1,9 @@ +## less-brunch 1.1.1 (April 15, 2012) +* Added handling of exceptions from the less parser. +* Fixed error reporting when installing the package. + +## less-brunch 1.1.0 (April 09, 2012) +* Added windows support. + +## less-brunch 1.0.0 (March 14, 2012) +* Initial release diff --git a/node_modules/less-brunch/README.md b/node_modules/less-brunch/README.md new file mode 100644 index 0000000..5aaef55 --- /dev/null +++ b/node_modules/less-brunch/README.md @@ -0,0 +1,11 @@ +## less-brunch +Adds [LESS](http://lesscss.org/) support to +[brunch](http://brunch.io). + +## Usage +Add `"less-brunch": "x.y.z"` to `package.json` of your brunch app. + +Pick a plugin version that corresponds to your minor (y) brunch version. + +If you want to use git version of plugin, add +`"less-brunch": "git+ssh://git@github.com:brunch/less-brunch.git"`. diff --git a/node_modules/less-brunch/lib/index.js b/node_modules/less-brunch/lib/index.js new file mode 100644 index 0000000..47e6321 --- /dev/null +++ b/node_modules/less-brunch/lib/index.js @@ -0,0 +1,47 @@ +(function() { + var LESSCompiler, less, sysPath; + + less = require('less'); + + sysPath = require('path'); + + module.exports = LESSCompiler = (function() { + + LESSCompiler.prototype.brunchPlugin = true; + + LESSCompiler.prototype.type = 'stylesheet'; + + LESSCompiler.prototype.extension = 'less'; + + function LESSCompiler(config) { + this.config = config; + null; + } + + LESSCompiler.prototype.compile = function(data, path, callback) { + var parser, + _this = this; + parser = new less.Parser({ + paths: [this.config.paths.root, sysPath.dirname(path)], + filename: path + }); + return parser.parse(data, function(error, tree) { + var errStr; + if (error != null) return callback(error.message); + try { + return callback(null, tree.toCSS()); + } catch (ex) { + errStr = "" + ex.type + "Error:" + ex.message; + if (ex.filename) { + errStr += " in '" + ex.filename + ":" + ex.line + ":" + ex.column + "'"; + } + return callback(errStr); + } + }); + }; + + return LESSCompiler; + + })(); + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/.bin/cake b/node_modules/less-brunch/node_modules/.bin/cake new file mode 120000 index 0000000..d95f32a --- /dev/null +++ b/node_modules/less-brunch/node_modules/.bin/cake @@ -0,0 +1 @@ +../coffee-script/bin/cake \ No newline at end of file diff --git a/node_modules/less-brunch/node_modules/.bin/coffee b/node_modules/less-brunch/node_modules/.bin/coffee new file mode 120000 index 0000000..b57f275 --- /dev/null +++ b/node_modules/less-brunch/node_modules/.bin/coffee @@ -0,0 +1 @@ +../coffee-script/bin/coffee \ No newline at end of file diff --git a/node_modules/less-brunch/node_modules/.bin/lessc b/node_modules/less-brunch/node_modules/.bin/lessc new file mode 120000 index 0000000..87a5294 --- /dev/null +++ b/node_modules/less-brunch/node_modules/.bin/lessc @@ -0,0 +1 @@ +../less/bin/lessc \ No newline at end of file diff --git a/node_modules/less-brunch/node_modules/coffee-script/LICENSE b/node_modules/less-brunch/node_modules/coffee-script/LICENSE new file mode 100644 index 0000000..8cb3cfd --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/LICENSE @@ -0,0 +1,22 @@ +Copyright (c) 2011 Jeremy Ashkenas + +Permission is hereby granted, free of charge, to any person +obtaining a copy of this software and associated documentation +files (the "Software"), to deal in the Software without +restriction, including without limitation the rights to use, +copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the +Software is furnished to do so, subject to the following +conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES +OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT +HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. \ No newline at end of file diff --git a/node_modules/less-brunch/node_modules/coffee-script/README b/node_modules/less-brunch/node_modules/coffee-script/README new file mode 100644 index 0000000..69ee6f4 --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/README @@ -0,0 +1,51 @@ + + { + } } { + { { } } + } }{ { + { }{ } } _____ __ __ + ( }{ }{ { ) / ____| / _|/ _| + .- { { } { }} -. | | ___ | |_| |_ ___ ___ + ( ( } { } { } } ) | | / _ \| _| _/ _ \/ _ \ + |`-..________ ..-'| | |___| (_) | | | || __/ __/ + | | \_____\___/|_| |_| \___|\___| + | ;--. + | (__ \ _____ _ _ + | | ) ) / ____| (_) | | + | |/ / | (___ ___ _ __ _ _ __ | |_ + | ( / \___ \ / __| '__| | '_ \| __| + | |/ ____) | (__| | | | |_) | |_ + | | |_____/ \___|_| |_| .__/ \__| + `-.._________..-' | | + |_| + + + CoffeeScript is a little language that compiles into JavaScript. + + Install Node.js, and then the CoffeeScript compiler: + sudo bin/cake install + + Or, if you have the Node Package Manager installed: + npm install -g coffee-script + (Leave off the -g if you don't wish to install globally.) + + Execute a script: + coffee /path/to/script.coffee + + Compile a script: + coffee -c /path/to/script.coffee + + For documentation, usage, and examples, see: + http://coffeescript.org/ + + To suggest a feature, report a bug, or general discussion: + http://github.com/jashkenas/coffee-script/issues/ + + If you'd like to chat, drop by #coffeescript on Freenode IRC, + or on webchat.freenode.net. + + The source repository: + git://github.com/jashkenas/coffee-script.git + + All contributors are listed here: + http://github.com/jashkenas/coffee-script/contributors diff --git a/node_modules/less-brunch/node_modules/coffee-script/Rakefile b/node_modules/less-brunch/node_modules/coffee-script/Rakefile new file mode 100644 index 0000000..dfb85da --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/Rakefile @@ -0,0 +1,78 @@ +require 'rubygems' +require 'erb' +require 'fileutils' +require 'rake/testtask' +require 'json' + +desc "Build the documentation page" +task :doc do + source = 'documentation/index.html.erb' + child = fork { exec "bin/coffee -bcw -o documentation/js documentation/coffee/*.coffee" } + at_exit { Process.kill("INT", child) } + Signal.trap("INT") { exit } + loop do + mtime = File.stat(source).mtime + if !@mtime || mtime > @mtime + rendered = ERB.new(File.read(source)).result(binding) + File.open('index.html', 'w+') {|f| f.write(rendered) } + end + @mtime = mtime + sleep 1 + end +end + +desc "Build coffee-script-source gem" +task :gem do + require 'rubygems' + require 'rubygems/package' + + gemspec = Gem::Specification.new do |s| + s.name = 'coffee-script-source' + s.version = JSON.parse(File.read('package.json'))["version"] + s.date = Time.now.strftime("%Y-%m-%d") + + s.homepage = "http://jashkenas.github.com/coffee-script/" + s.summary = "The CoffeeScript Compiler" + s.description = <<-EOS + CoffeeScript is a little language that compiles into JavaScript. + Underneath all of those embarrassing braces and semicolons, + JavaScript has always had a gorgeous object model at its heart. + CoffeeScript is an attempt to expose the good parts of JavaScript + in a simple way. + EOS + + s.files = [ + 'lib/coffee_script/coffee-script.js', + 'lib/coffee_script/source.rb' + ] + + s.authors = ['Jeremy Ashkenas'] + s.email = 'jashkenas@gmail.com' + s.rubyforge_project = 'coffee-script-source' + end + + file = File.open("coffee-script-source.gem", "w") + Gem::Package.open(file, 'w') do |pkg| + pkg.metadata = gemspec.to_yaml + + path = "lib/coffee_script/source.rb" + contents = <<-ERUBY +module CoffeeScript + module Source + def self.bundled_path + File.expand_path("../coffee-script.js", __FILE__) + end + end +end + ERUBY + pkg.add_file_simple(path, 0644, contents.size) do |tar_io| + tar_io.write(contents) + end + + contents = File.read("extras/coffee-script.js") + path = "lib/coffee_script/coffee-script.js" + pkg.add_file_simple(path, 0644, contents.size) do |tar_io| + tar_io.write(contents) + end + end +end diff --git a/node_modules/less-brunch/node_modules/coffee-script/bin/cake b/node_modules/less-brunch/node_modules/coffee-script/bin/cake new file mode 100755 index 0000000..5965f4e --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/bin/cake @@ -0,0 +1,7 @@ +#!/usr/bin/env node + +var path = require('path'); +var fs = require('fs'); +var lib = path.join(path.dirname(fs.realpathSync(__filename)), '../lib'); + +require(lib + '/coffee-script/cake').run(); diff --git a/node_modules/less-brunch/node_modules/coffee-script/bin/coffee b/node_modules/less-brunch/node_modules/coffee-script/bin/coffee new file mode 100755 index 0000000..3d1d71c --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/bin/coffee @@ -0,0 +1,7 @@ +#!/usr/bin/env node + +var path = require('path'); +var fs = require('fs'); +var lib = path.join(path.dirname(fs.realpathSync(__filename)), '../lib'); + +require(lib + '/coffee-script/command').run(); diff --git a/node_modules/less-brunch/node_modules/coffee-script/extras/jsl.conf b/node_modules/less-brunch/node_modules/coffee-script/extras/jsl.conf new file mode 100644 index 0000000..1190da5 --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/extras/jsl.conf @@ -0,0 +1,44 @@ +# JavaScriptLint configuration file for CoffeeScript. + ++no_return_value # function {0} does not always return a value ++duplicate_formal # duplicate formal argument {0} +-equal_as_assign # test for equality (==) mistyped as assignment (=)?{0} ++var_hides_arg # variable {0} hides argument ++redeclared_var # redeclaration of {0} {1} +-anon_no_return_value # anonymous function does not always return a value ++missing_semicolon # missing semicolon ++meaningless_block # meaningless block; curly braces have no impact +-comma_separated_stmts # multiple statements separated by commas (use semicolons?) ++unreachable_code # unreachable code ++missing_break # missing break statement +-missing_break_for_last_case # missing break statement for last case in switch +-comparison_type_conv # comparisons against null, 0, true, false, or an empty string allowing implicit type conversion (use === or !==) +-inc_dec_within_stmt # increment (++) and decrement (--) operators used as part of greater statement +-useless_void # use of the void type may be unnecessary (void is always undefined) ++multiple_plus_minus # unknown order of operations for successive plus (e.g. x+++y) or minus (e.g. x---y) signs ++use_of_label # use of label +-block_without_braces # block statement without curly braces ++leading_decimal_point # leading decimal point may indicate a number or an object member ++trailing_decimal_point # trailing decimal point may indicate a number or an object member ++octal_number # leading zeros make an octal number ++nested_comment # nested comment ++misplaced_regex # regular expressions should be preceded by a left parenthesis, assignment, colon, or comma ++ambiguous_newline # unexpected end of line; it is ambiguous whether these lines are part of the same statement ++empty_statement # empty statement or extra semicolon +-missing_option_explicit # the "option explicit" control comment is missing ++partial_option_explicit # the "option explicit" control comment, if used, must be in the first script tag ++dup_option_explicit # duplicate "option explicit" control comment ++useless_assign # useless assignment ++ambiguous_nested_stmt # block statements containing block statements should use curly braces to resolve ambiguity ++ambiguous_else_stmt # the else statement could be matched with one of multiple if statements (use curly braces to indicate intent) +-missing_default_case # missing default case in switch statement ++duplicate_case_in_switch # duplicate case in switch statements ++default_not_at_end # the default case is not at the end of the switch statement ++legacy_cc_not_understood # couldn't understand control comment using /*@keyword@*/ syntax ++jsl_cc_not_understood # couldn't understand control comment using /*jsl:keyword*/ syntax ++useless_comparison # useless comparison; comparing identical expressions ++with_statement # with statement hides undeclared variables; use temporary variable instead ++trailing_comma_in_array # extra comma is not recommended in array initializers ++assign_to_function_call # assignment to a function call ++parseint_missing_radix # parseInt missing radix parameter ++lambda_assign_requires_semicolon diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/browser.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/browser.js new file mode 100644 index 0000000..ec2e479 --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/browser.js @@ -0,0 +1,74 @@ +(function() { + var CoffeeScript, runScripts; + + CoffeeScript = require('./coffee-script'); + + CoffeeScript.require = require; + + CoffeeScript.eval = function(code, options) { + return eval(CoffeeScript.compile(code, options)); + }; + + CoffeeScript.run = function(code, options) { + if (options == null) options = {}; + options.bare = true; + return Function(CoffeeScript.compile(code, options))(); + }; + + if (typeof window === "undefined" || window === null) return; + + CoffeeScript.load = function(url, callback) { + var xhr; + xhr = new (window.ActiveXObject || XMLHttpRequest)('Microsoft.XMLHTTP'); + xhr.open('GET', url, true); + if ('overrideMimeType' in xhr) xhr.overrideMimeType('text/plain'); + xhr.onreadystatechange = function() { + var _ref; + if (xhr.readyState === 4) { + if ((_ref = xhr.status) === 0 || _ref === 200) { + CoffeeScript.run(xhr.responseText); + } else { + throw new Error("Could not load " + url); + } + if (callback) return callback(); + } + }; + return xhr.send(null); + }; + + runScripts = function() { + var coffees, execute, index, length, s, scripts; + scripts = document.getElementsByTagName('script'); + coffees = (function() { + var _i, _len, _results; + _results = []; + for (_i = 0, _len = scripts.length; _i < _len; _i++) { + s = scripts[_i]; + if (s.type === 'text/coffeescript') _results.push(s); + } + return _results; + })(); + index = 0; + length = coffees.length; + (execute = function() { + var script; + script = coffees[index++]; + if ((script != null ? script.type : void 0) === 'text/coffeescript') { + if (script.src) { + return CoffeeScript.load(script.src, execute); + } else { + CoffeeScript.run(script.innerHTML); + return execute(); + } + } + })(); + return null; + }; + + if (window.addEventListener) { + addEventListener('DOMContentLoaded', runScripts, false); + } else { + attachEvent('onload', runScripts); + } + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/cake.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/cake.js new file mode 100644 index 0000000..986d5cc --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/cake.js @@ -0,0 +1,99 @@ +(function() { + var CoffeeScript, cakefileDirectory, fatalError, fs, helpers, missingTask, oparse, options, optparse, path, printTasks, switches, tasks; + + fs = require('fs'); + + path = require('path'); + + helpers = require('./helpers'); + + optparse = require('./optparse'); + + CoffeeScript = require('./coffee-script'); + + tasks = {}; + + options = {}; + + switches = []; + + oparse = null; + + helpers.extend(global, { + task: function(name, description, action) { + var _ref; + if (!action) { + _ref = [description, action], action = _ref[0], description = _ref[1]; + } + return tasks[name] = { + name: name, + description: description, + action: action + }; + }, + option: function(letter, flag, description) { + return switches.push([letter, flag, description]); + }, + invoke: function(name) { + if (!tasks[name]) missingTask(name); + return tasks[name].action(options); + } + }); + + exports.run = function() { + var arg, args, _i, _len, _ref, _results; + global.__originalDirname = fs.realpathSync('.'); + process.chdir(cakefileDirectory(__originalDirname)); + args = process.argv.slice(2); + CoffeeScript.run(fs.readFileSync('Cakefile').toString(), { + filename: 'Cakefile' + }); + oparse = new optparse.OptionParser(switches); + if (!args.length) return printTasks(); + try { + options = oparse.parse(args); + } catch (e) { + return fatalError("" + e); + } + _ref = options.arguments; + _results = []; + for (_i = 0, _len = _ref.length; _i < _len; _i++) { + arg = _ref[_i]; + _results.push(invoke(arg)); + } + return _results; + }; + + printTasks = function() { + var cakefilePath, desc, name, spaces, task; + cakefilePath = path.join(path.relative(__originalDirname, process.cwd()), 'Cakefile'); + console.log("" + cakefilePath + " defines the following tasks:\n"); + for (name in tasks) { + task = tasks[name]; + spaces = 20 - name.length; + spaces = spaces > 0 ? Array(spaces + 1).join(' ') : ''; + desc = task.description ? "# " + task.description : ''; + console.log("cake " + name + spaces + " " + desc); + } + if (switches.length) return console.log(oparse.help()); + }; + + fatalError = function(message) { + console.error(message + '\n'); + console.log('To see a list of all tasks/options, run "cake"'); + return process.exit(1); + }; + + missingTask = function(task) { + return fatalError("No such task: " + task); + }; + + cakefileDirectory = function(dir) { + var parent; + if (path.existsSync(path.join(dir, 'Cakefile'))) return dir; + parent = path.normalize(path.join(dir, '..')); + if (parent !== dir) return cakefileDirectory(parent); + throw new Error("Cakefile not found in " + (process.cwd())); + }; + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/coffee-script.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/coffee-script.js new file mode 100644 index 0000000..fd410ba --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/coffee-script.js @@ -0,0 +1,150 @@ +(function() { + var Lexer, RESERVED, compile, fs, lexer, parser, path, vm, _ref, + __hasProp = Object.prototype.hasOwnProperty; + + fs = require('fs'); + + path = require('path'); + + _ref = require('./lexer'), Lexer = _ref.Lexer, RESERVED = _ref.RESERVED; + + parser = require('./parser').parser; + + vm = require('vm'); + + if (require.extensions) { + require.extensions['.coffee'] = function(module, filename) { + var content; + content = compile(fs.readFileSync(filename, 'utf8'), { + filename: filename + }); + return module._compile(content, filename); + }; + } else if (require.registerExtension) { + require.registerExtension('.coffee', function(content) { + return compile(content); + }); + } + + exports.VERSION = '1.2.0'; + + exports.RESERVED = RESERVED; + + exports.helpers = require('./helpers'); + + exports.compile = compile = function(code, options) { + var merge; + if (options == null) options = {}; + merge = exports.helpers.merge; + try { + return (parser.parse(lexer.tokenize(code))).compile(merge({}, options)); + } catch (err) { + if (options.filename) { + err.message = "In " + options.filename + ", " + err.message; + } + throw err; + } + }; + + exports.tokens = function(code, options) { + return lexer.tokenize(code, options); + }; + + exports.nodes = function(source, options) { + if (typeof source === 'string') { + return parser.parse(lexer.tokenize(source, options)); + } else { + return parser.parse(source); + } + }; + + exports.run = function(code, options) { + var mainModule; + mainModule = require.main; + mainModule.filename = process.argv[1] = options.filename ? fs.realpathSync(options.filename) : '.'; + mainModule.moduleCache && (mainModule.moduleCache = {}); + mainModule.paths = require('module')._nodeModulePaths(path.dirname(options.filename)); + if (path.extname(mainModule.filename) !== '.coffee' || require.extensions) { + return mainModule._compile(compile(code, options), mainModule.filename); + } else { + return mainModule._compile(code, mainModule.filename); + } + }; + + exports.eval = function(code, options) { + var Module, Script, js, k, o, r, sandbox, v, _i, _len, _module, _ref2, _ref3, _require; + if (options == null) options = {}; + if (!(code = code.trim())) return; + Script = vm.Script; + if (Script) { + if (options.sandbox != null) { + if (options.sandbox instanceof Script.createContext().constructor) { + sandbox = options.sandbox; + } else { + sandbox = Script.createContext(); + _ref2 = options.sandbox; + for (k in _ref2) { + if (!__hasProp.call(_ref2, k)) continue; + v = _ref2[k]; + sandbox[k] = v; + } + } + sandbox.global = sandbox.root = sandbox.GLOBAL = sandbox; + } else { + sandbox = global; + } + sandbox.__filename = options.filename || 'eval'; + sandbox.__dirname = path.dirname(sandbox.__filename); + if (!(sandbox !== global || sandbox.module || sandbox.require)) { + Module = require('module'); + sandbox.module = _module = new Module(options.modulename || 'eval'); + sandbox.require = _require = function(path) { + return Module._load(path, _module, true); + }; + _module.filename = sandbox.__filename; + _ref3 = Object.getOwnPropertyNames(require); + for (_i = 0, _len = _ref3.length; _i < _len; _i++) { + r = _ref3[_i]; + if (r !== 'paths') _require[r] = require[r]; + } + _require.paths = _module.paths = Module._nodeModulePaths(process.cwd()); + _require.resolve = function(request) { + return Module._resolveFilename(request, _module); + }; + } + } + o = {}; + for (k in options) { + if (!__hasProp.call(options, k)) continue; + v = options[k]; + o[k] = v; + } + o.bare = true; + js = compile(code, o); + if (sandbox === global) { + return vm.runInThisContext(js); + } else { + return vm.runInContext(js, sandbox); + } + }; + + lexer = new Lexer; + + parser.lexer = { + lex: function() { + var tag, _ref2; + _ref2 = this.tokens[this.pos++] || [''], tag = _ref2[0], this.yytext = _ref2[1], this.yylineno = _ref2[2]; + return tag; + }, + setInput: function(tokens) { + this.tokens = tokens; + return this.pos = 0; + }, + upcomingInput: function() { + return ""; + } + }; + + parser.yy = require('./nodes'); + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/command.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/command.js new file mode 100644 index 0000000..da330b3 --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/command.js @@ -0,0 +1,442 @@ +(function() { + var BANNER, CoffeeScript, EventEmitter, SWITCHES, compileJoin, compileOptions, compilePath, compileScript, compileStdio, exec, forkNode, fs, helpers, joinTimeout, lint, loadRequires, notSources, optionParser, optparse, opts, outputPath, parseOptions, path, printLine, printTokens, printWarn, removeSource, sourceCode, sources, spawn, timeLog, unwatchDir, usage, version, wait, watch, watchDir, watchers, writeJs, _ref; + + fs = require('fs'); + + path = require('path'); + + helpers = require('./helpers'); + + optparse = require('./optparse'); + + CoffeeScript = require('./coffee-script'); + + _ref = require('child_process'), spawn = _ref.spawn, exec = _ref.exec; + + EventEmitter = require('events').EventEmitter; + + helpers.extend(CoffeeScript, new EventEmitter); + + printLine = function(line) { + return process.stdout.write(line + '\n'); + }; + + printWarn = function(line) { + return process.stderr.write(line + '\n'); + }; + + BANNER = 'Usage: coffee [options] path/to/script.coffee\n\nIf called without options, `coffee` will run your script.'; + + SWITCHES = [['-b', '--bare', 'compile without a top-level function wrapper'], ['-c', '--compile', 'compile to JavaScript and save as .js files'], ['-e', '--eval', 'pass a string from the command line as input'], ['-h', '--help', 'display this help message'], ['-i', '--interactive', 'run an interactive CoffeeScript REPL'], ['-j', '--join [FILE]', 'concatenate the source CoffeeScript before compiling'], ['-l', '--lint', 'pipe the compiled JavaScript through JavaScript Lint'], ['-n', '--nodes', 'print out the parse tree that the parser produces'], ['--nodejs [ARGS]', 'pass options directly to the "node" binary'], ['-o', '--output [DIR]', 'set the output directory for compiled JavaScript'], ['-p', '--print', 'print out the compiled JavaScript'], ['-r', '--require [FILE*]', 'require a library before executing your script'], ['-s', '--stdio', 'listen for and compile scripts over stdio'], ['-t', '--tokens', 'print out the tokens that the lexer/rewriter produce'], ['-v', '--version', 'display the version number'], ['-w', '--watch', 'watch scripts for changes and rerun commands']]; + + opts = {}; + + sources = []; + + sourceCode = []; + + notSources = {}; + + watchers = {}; + + optionParser = null; + + exports.run = function() { + var source, _i, _len, _results; + parseOptions(); + if (opts.nodejs) return forkNode(); + if (opts.help) return usage(); + if (opts.version) return version(); + if (opts.require) loadRequires(); + if (opts.interactive) return require('./repl'); + if (opts.watch && !fs.watch) { + printWarn("The --watch feature depends on Node v0.6.0+. You are running " + process.version + "."); + } + if (opts.stdio) return compileStdio(); + if (opts.eval) return compileScript(null, sources[0]); + if (!sources.length) return require('./repl'); + if (opts.run) opts.literals = sources.splice(1).concat(opts.literals); + process.argv = process.argv.slice(0, 2).concat(opts.literals); + process.argv[0] = 'coffee'; + process.execPath = require.main.filename; + _results = []; + for (_i = 0, _len = sources.length; _i < _len; _i++) { + source = sources[_i]; + _results.push(compilePath(source, true, path.normalize(source))); + } + return _results; + }; + + compilePath = function(source, topLevel, base) { + return fs.stat(source, function(err, stats) { + if (err && err.code !== 'ENOENT') throw err; + if ((err != null ? err.code : void 0) === 'ENOENT') { + if (topLevel && source.slice(-7) !== '.coffee') { + source = sources[sources.indexOf(source)] = "" + source + ".coffee"; + return compilePath(source, topLevel, base); + } + if (topLevel) { + console.error("File not found: " + source); + process.exit(1); + } + return; + } + if (stats.isDirectory()) { + if (opts.watch) watchDir(source, base); + return fs.readdir(source, function(err, files) { + var file, index, _i, _len, _ref2, _results; + if (err && err.code !== 'ENOENT') throw err; + if ((err != null ? err.code : void 0) === 'ENOENT') return; + files = files.map(function(file) { + return path.join(source, file); + }); + index = sources.indexOf(source); + [].splice.apply(sources, [index, index - index + 1].concat(files)), files; + [].splice.apply(sourceCode, [index, index - index + 1].concat(_ref2 = files.map(function() { + return null; + }))), _ref2; + _results = []; + for (_i = 0, _len = files.length; _i < _len; _i++) { + file = files[_i]; + _results.push(compilePath(file, false, base)); + } + return _results; + }); + } else if (topLevel || path.extname(source) === '.coffee') { + if (opts.watch) watch(source, base); + return fs.readFile(source, function(err, code) { + if (err && err.code !== 'ENOENT') throw err; + if ((err != null ? err.code : void 0) === 'ENOENT') return; + return compileScript(source, code.toString(), base); + }); + } else { + notSources[source] = true; + return removeSource(source, base); + } + }); + }; + + compileScript = function(file, input, base) { + var o, options, t, task; + o = opts; + options = compileOptions(file); + try { + t = task = { + file: file, + input: input, + options: options + }; + CoffeeScript.emit('compile', task); + if (o.tokens) { + return printTokens(CoffeeScript.tokens(t.input)); + } else if (o.nodes) { + return printLine(CoffeeScript.nodes(t.input).toString().trim()); + } else if (o.run) { + return CoffeeScript.run(t.input, t.options); + } else if (o.join && t.file !== o.join) { + sourceCode[sources.indexOf(t.file)] = t.input; + return compileJoin(); + } else { + t.output = CoffeeScript.compile(t.input, t.options); + CoffeeScript.emit('success', task); + if (o.print) { + return printLine(t.output.trim()); + } else if (o.compile) { + return writeJs(t.file, t.output, base); + } else if (o.lint) { + return lint(t.file, t.output); + } + } + } catch (err) { + CoffeeScript.emit('failure', err, task); + if (CoffeeScript.listeners('failure').length) return; + if (o.watch) return printLine(err.message); + printWarn(err instanceof Error && err.stack || ("ERROR: " + err)); + return process.exit(1); + } + }; + + compileStdio = function() { + var code, stdin; + code = ''; + stdin = process.openStdin(); + stdin.on('data', function(buffer) { + if (buffer) return code += buffer.toString(); + }); + return stdin.on('end', function() { + return compileScript(null, code); + }); + }; + + joinTimeout = null; + + compileJoin = function() { + if (!opts.join) return; + if (!sourceCode.some(function(code) { + return code === null; + })) { + clearTimeout(joinTimeout); + return joinTimeout = wait(100, function() { + return compileScript(opts.join, sourceCode.join('\n'), opts.join); + }); + } + }; + + loadRequires = function() { + var realFilename, req, _i, _len, _ref2; + realFilename = module.filename; + module.filename = '.'; + _ref2 = opts.require; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + req = _ref2[_i]; + require(req); + } + return module.filename = realFilename; + }; + + watch = function(source, base) { + var callback, compile, compileTimeout, prevStats, watchErr, watcher; + prevStats = null; + compileTimeout = null; + watchErr = function(e) { + if (e.code === 'ENOENT') { + if (sources.indexOf(source) === -1) return; + removeSource(source, base, true); + return compileJoin(); + } else { + throw e; + } + }; + compile = function() { + clearTimeout(compileTimeout); + return compileTimeout = wait(25, function() { + return fs.stat(source, function(err, stats) { + if (err) return watchErr(err); + if (prevStats && (stats.size === prevStats.size && stats.mtime.getTime() === prevStats.mtime.getTime())) { + return; + } + prevStats = stats; + return fs.readFile(source, function(err, code) { + if (err) return watchErr(err); + return compileScript(source, code.toString(), base); + }); + }); + }); + }; + watchErr = function(e) { + if (e.code !== 'ENOENT') throw e; + removeSource(source, base, true); + return compileJoin(); + }; + try { + return watcher = fs.watch(source, callback = function(event) { + if (event === 'change') { + return compile(); + } else if (event === 'rename') { + watcher.close(); + return wait(250, function() { + compile(); + try { + return watcher = fs.watch(source, callback); + } catch (e) { + return watchErr(e); + } + }); + } + }); + } catch (e) { + return watchErr(e); + } + }; + + watchDir = function(source, base) { + var readdirTimeout, watcher; + readdirTimeout = null; + try { + return watcher = fs.watch(source, function() { + clearTimeout(readdirTimeout); + return readdirTimeout = wait(25, function() { + return fs.readdir(source, function(err, files) { + var file, _i, _len, _results; + if (err) { + if (err.code !== 'ENOENT') throw err; + watcher.close(); + return unwatchDir(source, base); + } + files = files.map(function(file) { + return path.join(source, file); + }); + _results = []; + for (_i = 0, _len = files.length; _i < _len; _i++) { + file = files[_i]; + if (!(!notSources[file])) continue; + if (sources.some(function(s) { + return s.indexOf(file) >= 0; + })) { + continue; + } + sources.push(file); + sourceCode.push(null); + _results.push(compilePath(file, false, base)); + } + return _results; + }); + }); + }); + } catch (e) { + if (e.code !== 'ENOENT') throw e; + } + }; + + unwatchDir = function(source, base) { + var file, prevSources, toRemove, _i, _len; + prevSources = sources.slice(); + toRemove = (function() { + var _i, _len, _results; + _results = []; + for (_i = 0, _len = sources.length; _i < _len; _i++) { + file = sources[_i]; + if (file.indexOf(source) >= 0) _results.push(file); + } + return _results; + })(); + for (_i = 0, _len = toRemove.length; _i < _len; _i++) { + file = toRemove[_i]; + removeSource(file, base, true); + } + if (!sources.some(function(s, i) { + return prevSources[i] !== s; + })) { + return; + } + return compileJoin(); + }; + + removeSource = function(source, base, removeJs) { + var index, jsPath; + index = sources.indexOf(source); + sources.splice(index, 1); + sourceCode.splice(index, 1); + if (removeJs && !opts.join) { + jsPath = outputPath(source, base); + return path.exists(jsPath, function(exists) { + if (exists) { + return fs.unlink(jsPath, function(err) { + if (err && err.code !== 'ENOENT') throw err; + return timeLog("removed " + source); + }); + } + }); + } + }; + + outputPath = function(source, base) { + var baseDir, dir, filename, srcDir; + filename = path.basename(source, path.extname(source)) + '.js'; + srcDir = path.dirname(source); + baseDir = base === '.' ? srcDir : srcDir.substring(base.length); + dir = opts.output ? path.join(opts.output, baseDir) : srcDir; + return path.join(dir, filename); + }; + + writeJs = function(source, js, base) { + var compile, jsDir, jsPath; + jsPath = outputPath(source, base); + jsDir = path.dirname(jsPath); + compile = function() { + if (js.length <= 0) js = ' '; + return fs.writeFile(jsPath, js, function(err) { + if (err) { + return printLine(err.message); + } else if (opts.compile && opts.watch) { + return timeLog("compiled " + source); + } + }); + }; + return path.exists(jsDir, function(exists) { + if (exists) { + return compile(); + } else { + return exec("mkdir -p " + jsDir, compile); + } + }); + }; + + wait = function(milliseconds, func) { + return setTimeout(func, milliseconds); + }; + + timeLog = function(message) { + return console.log("" + ((new Date).toLocaleTimeString()) + " - " + message); + }; + + lint = function(file, js) { + var conf, jsl, printIt; + printIt = function(buffer) { + return printLine(file + ':\t' + buffer.toString().trim()); + }; + conf = __dirname + '/../../extras/jsl.conf'; + jsl = spawn('jsl', ['-nologo', '-stdin', '-conf', conf]); + jsl.stdout.on('data', printIt); + jsl.stderr.on('data', printIt); + jsl.stdin.write(js); + return jsl.stdin.end(); + }; + + printTokens = function(tokens) { + var strings, tag, token, value; + strings = (function() { + var _i, _len, _ref2, _results; + _results = []; + for (_i = 0, _len = tokens.length; _i < _len; _i++) { + token = tokens[_i]; + _ref2 = [token[0], token[1].toString().replace(/\n/, '\\n')], tag = _ref2[0], value = _ref2[1]; + _results.push("[" + tag + " " + value + "]"); + } + return _results; + })(); + return printLine(strings.join(' ')); + }; + + parseOptions = function() { + var i, o, source, _len; + optionParser = new optparse.OptionParser(SWITCHES, BANNER); + o = opts = optionParser.parse(process.argv.slice(2)); + o.compile || (o.compile = !!o.output); + o.run = !(o.compile || o.print || o.lint); + o.print = !!(o.print || (o.eval || o.stdio && o.compile)); + sources = o.arguments; + for (i = 0, _len = sources.length; i < _len; i++) { + source = sources[i]; + sourceCode[i] = null; + } + }; + + compileOptions = function(filename) { + return { + filename: filename, + bare: opts.bare + }; + }; + + forkNode = function() { + var args, nodeArgs; + nodeArgs = opts.nodejs.split(/\s+/); + args = process.argv.slice(1); + args.splice(args.indexOf('--nodejs'), 2); + return spawn(process.execPath, nodeArgs.concat(args), { + cwd: process.cwd(), + env: process.env, + customFds: [0, 1, 2] + }); + }; + + usage = function() { + return printLine((new optparse.OptionParser(SWITCHES, BANNER)).help()); + }; + + version = function() { + return printLine("CoffeeScript version " + CoffeeScript.VERSION); + }; + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/grammar.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/grammar.js new file mode 100644 index 0000000..2424fc7 --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/grammar.js @@ -0,0 +1,592 @@ +(function() { + var Parser, alt, alternatives, grammar, name, o, operators, token, tokens, unwrap; + + Parser = require('jison').Parser; + + unwrap = /^function\s*\(\)\s*\{\s*return\s*([\s\S]*);\s*\}/; + + o = function(patternString, action, options) { + var match; + patternString = patternString.replace(/\s{2,}/g, ' '); + if (!action) return [patternString, '$$ = $1;', options]; + action = (match = unwrap.exec(action)) ? match[1] : "(" + action + "())"; + action = action.replace(/\bnew /g, '$&yy.'); + action = action.replace(/\b(?:Block\.wrap|extend)\b/g, 'yy.$&'); + return [patternString, "$$ = " + action + ";", options]; + }; + + grammar = { + Root: [ + o('', function() { + return new Block; + }), o('Body'), o('Block TERMINATOR') + ], + Body: [ + o('Line', function() { + return Block.wrap([$1]); + }), o('Body TERMINATOR Line', function() { + return $1.push($3); + }), o('Body TERMINATOR') + ], + Line: [o('Expression'), o('Statement')], + Statement: [ + o('Return'), o('Comment'), o('STATEMENT', function() { + return new Literal($1); + }) + ], + Expression: [o('Value'), o('Invocation'), o('Code'), o('Operation'), o('Assign'), o('If'), o('Try'), o('While'), o('For'), o('Switch'), o('Class'), o('Throw')], + Block: [ + o('INDENT OUTDENT', function() { + return new Block; + }), o('INDENT Body OUTDENT', function() { + return $2; + }) + ], + Identifier: [ + o('IDENTIFIER', function() { + return new Literal($1); + }) + ], + AlphaNumeric: [ + o('NUMBER', function() { + return new Literal($1); + }), o('STRING', function() { + return new Literal($1); + }) + ], + Literal: [ + o('AlphaNumeric'), o('JS', function() { + return new Literal($1); + }), o('REGEX', function() { + return new Literal($1); + }), o('DEBUGGER', function() { + return new Literal($1); + }), o('BOOL', function() { + var val; + val = new Literal($1); + if ($1 === 'undefined') val.isUndefined = true; + return val; + }) + ], + Assign: [ + o('Assignable = Expression', function() { + return new Assign($1, $3); + }), o('Assignable = TERMINATOR Expression', function() { + return new Assign($1, $4); + }), o('Assignable = INDENT Expression OUTDENT', function() { + return new Assign($1, $4); + }) + ], + AssignObj: [ + o('ObjAssignable', function() { + return new Value($1); + }), o('ObjAssignable : Expression', function() { + return new Assign(new Value($1), $3, 'object'); + }), o('ObjAssignable :\ + INDENT Expression OUTDENT', function() { + return new Assign(new Value($1), $4, 'object'); + }), o('Comment') + ], + ObjAssignable: [o('Identifier'), o('AlphaNumeric'), o('ThisProperty')], + Return: [ + o('RETURN Expression', function() { + return new Return($2); + }), o('RETURN', function() { + return new Return; + }) + ], + Comment: [ + o('HERECOMMENT', function() { + return new Comment($1); + }) + ], + Code: [ + o('PARAM_START ParamList PARAM_END FuncGlyph Block', function() { + return new Code($2, $5, $4); + }), o('FuncGlyph Block', function() { + return new Code([], $2, $1); + }) + ], + FuncGlyph: [ + o('->', function() { + return 'func'; + }), o('=>', function() { + return 'boundfunc'; + }) + ], + OptComma: [o(''), o(',')], + ParamList: [ + o('', function() { + return []; + }), o('Param', function() { + return [$1]; + }), o('ParamList , Param', function() { + return $1.concat($3); + }) + ], + Param: [ + o('ParamVar', function() { + return new Param($1); + }), o('ParamVar ...', function() { + return new Param($1, null, true); + }), o('ParamVar = Expression', function() { + return new Param($1, $3); + }) + ], + ParamVar: [o('Identifier'), o('ThisProperty'), o('Array'), o('Object')], + Splat: [ + o('Expression ...', function() { + return new Splat($1); + }) + ], + SimpleAssignable: [ + o('Identifier', function() { + return new Value($1); + }), o('Value Accessor', function() { + return $1.add($2); + }), o('Invocation Accessor', function() { + return new Value($1, [].concat($2)); + }), o('ThisProperty') + ], + Assignable: [ + o('SimpleAssignable'), o('Array', function() { + return new Value($1); + }), o('Object', function() { + return new Value($1); + }) + ], + Value: [ + o('Assignable'), o('Literal', function() { + return new Value($1); + }), o('Parenthetical', function() { + return new Value($1); + }), o('Range', function() { + return new Value($1); + }), o('This') + ], + Accessor: [ + o('. Identifier', function() { + return new Access($2); + }), o('?. Identifier', function() { + return new Access($2, 'soak'); + }), o(':: Identifier', function() { + return [new Access(new Literal('prototype')), new Access($2)]; + }), o('::', function() { + return new Access(new Literal('prototype')); + }), o('Index') + ], + Index: [ + o('INDEX_START IndexValue INDEX_END', function() { + return $2; + }), o('INDEX_SOAK Index', function() { + return extend($2, { + soak: true + }); + }) + ], + IndexValue: [ + o('Expression', function() { + return new Index($1); + }), o('Slice', function() { + return new Slice($1); + }) + ], + Object: [ + o('{ AssignList OptComma }', function() { + return new Obj($2, $1.generated); + }) + ], + AssignList: [ + o('', function() { + return []; + }), o('AssignObj', function() { + return [$1]; + }), o('AssignList , AssignObj', function() { + return $1.concat($3); + }), o('AssignList OptComma TERMINATOR AssignObj', function() { + return $1.concat($4); + }), o('AssignList OptComma INDENT AssignList OptComma OUTDENT', function() { + return $1.concat($4); + }) + ], + Class: [ + o('CLASS', function() { + return new Class; + }), o('CLASS Block', function() { + return new Class(null, null, $2); + }), o('CLASS EXTENDS Expression', function() { + return new Class(null, $3); + }), o('CLASS EXTENDS Expression Block', function() { + return new Class(null, $3, $4); + }), o('CLASS SimpleAssignable', function() { + return new Class($2); + }), o('CLASS SimpleAssignable Block', function() { + return new Class($2, null, $3); + }), o('CLASS SimpleAssignable EXTENDS Expression', function() { + return new Class($2, $4); + }), o('CLASS SimpleAssignable EXTENDS Expression Block', function() { + return new Class($2, $4, $5); + }) + ], + Invocation: [ + o('Value OptFuncExist Arguments', function() { + return new Call($1, $3, $2); + }), o('Invocation OptFuncExist Arguments', function() { + return new Call($1, $3, $2); + }), o('SUPER', function() { + return new Call('super', [new Splat(new Literal('arguments'))]); + }), o('SUPER Arguments', function() { + return new Call('super', $2); + }) + ], + OptFuncExist: [ + o('', function() { + return false; + }), o('FUNC_EXIST', function() { + return true; + }) + ], + Arguments: [ + o('CALL_START CALL_END', function() { + return []; + }), o('CALL_START ArgList OptComma CALL_END', function() { + return $2; + }) + ], + This: [ + o('THIS', function() { + return new Value(new Literal('this')); + }), o('@', function() { + return new Value(new Literal('this')); + }) + ], + ThisProperty: [ + o('@ Identifier', function() { + return new Value(new Literal('this'), [new Access($2)], 'this'); + }) + ], + Array: [ + o('[ ]', function() { + return new Arr([]); + }), o('[ ArgList OptComma ]', function() { + return new Arr($2); + }) + ], + RangeDots: [ + o('..', function() { + return 'inclusive'; + }), o('...', function() { + return 'exclusive'; + }) + ], + Range: [ + o('[ Expression RangeDots Expression ]', function() { + return new Range($2, $4, $3); + }) + ], + Slice: [ + o('Expression RangeDots Expression', function() { + return new Range($1, $3, $2); + }), o('Expression RangeDots', function() { + return new Range($1, null, $2); + }), o('RangeDots Expression', function() { + return new Range(null, $2, $1); + }) + ], + ArgList: [ + o('Arg', function() { + return [$1]; + }), o('ArgList , Arg', function() { + return $1.concat($3); + }), o('ArgList OptComma TERMINATOR Arg', function() { + return $1.concat($4); + }), o('INDENT ArgList OptComma OUTDENT', function() { + return $2; + }), o('ArgList OptComma INDENT ArgList OptComma OUTDENT', function() { + return $1.concat($4); + }) + ], + Arg: [o('Expression'), o('Splat')], + SimpleArgs: [ + o('Expression'), o('SimpleArgs , Expression', function() { + return [].concat($1, $3); + }) + ], + Try: [ + o('TRY Block', function() { + return new Try($2); + }), o('TRY Block Catch', function() { + return new Try($2, $3[0], $3[1]); + }), o('TRY Block FINALLY Block', function() { + return new Try($2, null, null, $4); + }), o('TRY Block Catch FINALLY Block', function() { + return new Try($2, $3[0], $3[1], $5); + }) + ], + Catch: [ + o('CATCH Identifier Block', function() { + return [$2, $3]; + }) + ], + Throw: [ + o('THROW Expression', function() { + return new Throw($2); + }) + ], + Parenthetical: [ + o('( Body )', function() { + return new Parens($2); + }), o('( INDENT Body OUTDENT )', function() { + return new Parens($3); + }) + ], + WhileSource: [ + o('WHILE Expression', function() { + return new While($2); + }), o('WHILE Expression WHEN Expression', function() { + return new While($2, { + guard: $4 + }); + }), o('UNTIL Expression', function() { + return new While($2, { + invert: true + }); + }), o('UNTIL Expression WHEN Expression', function() { + return new While($2, { + invert: true, + guard: $4 + }); + }) + ], + While: [ + o('WhileSource Block', function() { + return $1.addBody($2); + }), o('Statement WhileSource', function() { + return $2.addBody(Block.wrap([$1])); + }), o('Expression WhileSource', function() { + return $2.addBody(Block.wrap([$1])); + }), o('Loop', function() { + return $1; + }) + ], + Loop: [ + o('LOOP Block', function() { + return new While(new Literal('true')).addBody($2); + }), o('LOOP Expression', function() { + return new While(new Literal('true')).addBody(Block.wrap([$2])); + }) + ], + For: [ + o('Statement ForBody', function() { + return new For($1, $2); + }), o('Expression ForBody', function() { + return new For($1, $2); + }), o('ForBody Block', function() { + return new For($2, $1); + }) + ], + ForBody: [ + o('FOR Range', function() { + return { + source: new Value($2) + }; + }), o('ForStart ForSource', function() { + $2.own = $1.own; + $2.name = $1[0]; + $2.index = $1[1]; + return $2; + }) + ], + ForStart: [ + o('FOR ForVariables', function() { + return $2; + }), o('FOR OWN ForVariables', function() { + $3.own = true; + return $3; + }) + ], + ForValue: [ + o('Identifier'), o('Array', function() { + return new Value($1); + }), o('Object', function() { + return new Value($1); + }) + ], + ForVariables: [ + o('ForValue', function() { + return [$1]; + }), o('ForValue , ForValue', function() { + return [$1, $3]; + }) + ], + ForSource: [ + o('FORIN Expression', function() { + return { + source: $2 + }; + }), o('FOROF Expression', function() { + return { + source: $2, + object: true + }; + }), o('FORIN Expression WHEN Expression', function() { + return { + source: $2, + guard: $4 + }; + }), o('FOROF Expression WHEN Expression', function() { + return { + source: $2, + guard: $4, + object: true + }; + }), o('FORIN Expression BY Expression', function() { + return { + source: $2, + step: $4 + }; + }), o('FORIN Expression WHEN Expression BY Expression', function() { + return { + source: $2, + guard: $4, + step: $6 + }; + }), o('FORIN Expression BY Expression WHEN Expression', function() { + return { + source: $2, + step: $4, + guard: $6 + }; + }) + ], + Switch: [ + o('SWITCH Expression INDENT Whens OUTDENT', function() { + return new Switch($2, $4); + }), o('SWITCH Expression INDENT Whens ELSE Block OUTDENT', function() { + return new Switch($2, $4, $6); + }), o('SWITCH INDENT Whens OUTDENT', function() { + return new Switch(null, $3); + }), o('SWITCH INDENT Whens ELSE Block OUTDENT', function() { + return new Switch(null, $3, $5); + }) + ], + Whens: [ + o('When'), o('Whens When', function() { + return $1.concat($2); + }) + ], + When: [ + o('LEADING_WHEN SimpleArgs Block', function() { + return [[$2, $3]]; + }), o('LEADING_WHEN SimpleArgs Block TERMINATOR', function() { + return [[$2, $3]]; + }) + ], + IfBlock: [ + o('IF Expression Block', function() { + return new If($2, $3, { + type: $1 + }); + }), o('IfBlock ELSE IF Expression Block', function() { + return $1.addElse(new If($4, $5, { + type: $3 + })); + }) + ], + If: [ + o('IfBlock'), o('IfBlock ELSE Block', function() { + return $1.addElse($3); + }), o('Statement POST_IF Expression', function() { + return new If($3, Block.wrap([$1]), { + type: $2, + statement: true + }); + }), o('Expression POST_IF Expression', function() { + return new If($3, Block.wrap([$1]), { + type: $2, + statement: true + }); + }) + ], + Operation: [ + o('UNARY Expression', function() { + return new Op($1, $2); + }), o('- Expression', (function() { + return new Op('-', $2); + }), { + prec: 'UNARY' + }), o('+ Expression', (function() { + return new Op('+', $2); + }), { + prec: 'UNARY' + }), o('-- SimpleAssignable', function() { + return new Op('--', $2); + }), o('++ SimpleAssignable', function() { + return new Op('++', $2); + }), o('SimpleAssignable --', function() { + return new Op('--', $1, null, true); + }), o('SimpleAssignable ++', function() { + return new Op('++', $1, null, true); + }), o('Expression ?', function() { + return new Existence($1); + }), o('Expression + Expression', function() { + return new Op('+', $1, $3); + }), o('Expression - Expression', function() { + return new Op('-', $1, $3); + }), o('Expression MATH Expression', function() { + return new Op($2, $1, $3); + }), o('Expression SHIFT Expression', function() { + return new Op($2, $1, $3); + }), o('Expression COMPARE Expression', function() { + return new Op($2, $1, $3); + }), o('Expression LOGIC Expression', function() { + return new Op($2, $1, $3); + }), o('Expression RELATION Expression', function() { + if ($2.charAt(0) === '!') { + return new Op($2.slice(1), $1, $3).invert(); + } else { + return new Op($2, $1, $3); + } + }), o('SimpleAssignable COMPOUND_ASSIGN\ + Expression', function() { + return new Assign($1, $3, $2); + }), o('SimpleAssignable COMPOUND_ASSIGN\ + INDENT Expression OUTDENT', function() { + return new Assign($1, $4, $2); + }), o('SimpleAssignable EXTENDS Expression', function() { + return new Extends($1, $3); + }) + ] + }; + + operators = [['left', '.', '?.', '::'], ['left', 'CALL_START', 'CALL_END'], ['nonassoc', '++', '--'], ['left', '?'], ['right', 'UNARY'], ['left', 'MATH'], ['left', '+', '-'], ['left', 'SHIFT'], ['left', 'RELATION'], ['left', 'COMPARE'], ['left', 'LOGIC'], ['nonassoc', 'INDENT', 'OUTDENT'], ['right', '=', ':', 'COMPOUND_ASSIGN', 'RETURN', 'THROW', 'EXTENDS'], ['right', 'FORIN', 'FOROF', 'BY', 'WHEN'], ['right', 'IF', 'ELSE', 'FOR', 'DO', 'WHILE', 'UNTIL', 'LOOP', 'SUPER', 'CLASS'], ['right', 'POST_IF']]; + + tokens = []; + + for (name in grammar) { + alternatives = grammar[name]; + grammar[name] = (function() { + var _i, _j, _len, _len2, _ref, _results; + _results = []; + for (_i = 0, _len = alternatives.length; _i < _len; _i++) { + alt = alternatives[_i]; + _ref = alt[0].split(' '); + for (_j = 0, _len2 = _ref.length; _j < _len2; _j++) { + token = _ref[_j]; + if (!grammar[token]) tokens.push(token); + } + if (name === 'Root') alt[1] = "return " + alt[1]; + _results.push(alt); + } + return _results; + })(); + } + + exports.parser = new Parser({ + tokens: tokens.join(' '), + bnf: grammar, + operators: operators.reverse(), + startSymbol: 'Root' + }); + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/helpers.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/helpers.js new file mode 100644 index 0000000..038f781 --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/helpers.js @@ -0,0 +1,72 @@ +(function() { + var extend, flatten; + + exports.starts = function(string, literal, start) { + return literal === string.substr(start, literal.length); + }; + + exports.ends = function(string, literal, back) { + var len; + len = literal.length; + return literal === string.substr(string.length - len - (back || 0), len); + }; + + exports.compact = function(array) { + var item, _i, _len, _results; + _results = []; + for (_i = 0, _len = array.length; _i < _len; _i++) { + item = array[_i]; + if (item) _results.push(item); + } + return _results; + }; + + exports.count = function(string, substr) { + var num, pos; + num = pos = 0; + if (!substr.length) return 1 / 0; + while (pos = 1 + string.indexOf(substr, pos)) { + num++; + } + return num; + }; + + exports.merge = function(options, overrides) { + return extend(extend({}, options), overrides); + }; + + extend = exports.extend = function(object, properties) { + var key, val; + for (key in properties) { + val = properties[key]; + object[key] = val; + } + return object; + }; + + exports.flatten = flatten = function(array) { + var element, flattened, _i, _len; + flattened = []; + for (_i = 0, _len = array.length; _i < _len; _i++) { + element = array[_i]; + if (element instanceof Array) { + flattened = flattened.concat(flatten(element)); + } else { + flattened.push(element); + } + } + return flattened; + }; + + exports.del = function(obj, key) { + var val; + val = obj[key]; + delete obj[key]; + return val; + }; + + exports.last = function(array, back) { + return array[array.length - (back || 0) - 1]; + }; + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/index.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/index.js new file mode 100644 index 0000000..5e6eba9 --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/index.js @@ -0,0 +1,10 @@ +(function() { + var key, val, _ref; + + _ref = require('./coffee-script'); + for (key in _ref) { + val = _ref[key]; + exports[key] = val; + } + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/lexer.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/lexer.js new file mode 100644 index 0000000..1dd3b04 --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/lexer.js @@ -0,0 +1,686 @@ +(function() { + var BOOL, CALLABLE, CODE, COFFEE_ALIASES, COFFEE_ALIAS_MAP, COFFEE_KEYWORDS, COMMENT, COMPARE, COMPOUND_ASSIGN, HEREDOC, HEREDOC_ILLEGAL, HEREDOC_INDENT, HEREGEX, HEREGEX_OMIT, IDENTIFIER, INDEXABLE, INVERSES, JSTOKEN, JS_FORBIDDEN, JS_KEYWORDS, LINE_BREAK, LINE_CONTINUER, LOGIC, Lexer, MATH, MULTILINER, MULTI_DENT, NOT_REGEX, NOT_SPACED_REGEX, NUMBER, OPERATOR, REGEX, RELATION, RESERVED, Rewriter, SHIFT, SIMPLESTR, TRAILING_SPACES, UNARY, WHITESPACE, compact, count, key, last, starts, _ref, _ref2, + __indexOf = Array.prototype.indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; }; + + _ref = require('./rewriter'), Rewriter = _ref.Rewriter, INVERSES = _ref.INVERSES; + + _ref2 = require('./helpers'), count = _ref2.count, starts = _ref2.starts, compact = _ref2.compact, last = _ref2.last; + + exports.Lexer = Lexer = (function() { + + function Lexer() {} + + Lexer.prototype.tokenize = function(code, opts) { + var i, tag; + if (opts == null) opts = {}; + if (WHITESPACE.test(code)) code = "\n" + code; + code = code.replace(/\r/g, '').replace(TRAILING_SPACES, ''); + this.code = code; + this.line = opts.line || 0; + this.indent = 0; + this.indebt = 0; + this.outdebt = 0; + this.indents = []; + this.ends = []; + this.tokens = []; + i = 0; + while (this.chunk = code.slice(i)) { + i += this.identifierToken() || this.commentToken() || this.whitespaceToken() || this.lineToken() || this.heredocToken() || this.stringToken() || this.numberToken() || this.regexToken() || this.jsToken() || this.literalToken(); + } + this.closeIndentation(); + if (tag = this.ends.pop()) this.error("missing " + tag); + if (opts.rewrite === false) return this.tokens; + return (new Rewriter).rewrite(this.tokens); + }; + + Lexer.prototype.identifierToken = function() { + var colon, forcedIdentifier, id, input, match, prev, tag, _ref3, _ref4; + if (!(match = IDENTIFIER.exec(this.chunk))) return 0; + input = match[0], id = match[1], colon = match[2]; + if (id === 'own' && this.tag() === 'FOR') { + this.token('OWN', id); + return id.length; + } + forcedIdentifier = colon || (prev = last(this.tokens)) && (((_ref3 = prev[0]) === '.' || _ref3 === '?.' || _ref3 === '::') || !prev.spaced && prev[0] === '@'); + tag = 'IDENTIFIER'; + if (!forcedIdentifier && (__indexOf.call(JS_KEYWORDS, id) >= 0 || __indexOf.call(COFFEE_KEYWORDS, id) >= 0)) { + tag = id.toUpperCase(); + if (tag === 'WHEN' && (_ref4 = this.tag(), __indexOf.call(LINE_BREAK, _ref4) >= 0)) { + tag = 'LEADING_WHEN'; + } else if (tag === 'FOR') { + this.seenFor = true; + } else if (tag === 'UNLESS') { + tag = 'IF'; + } else if (__indexOf.call(UNARY, tag) >= 0) { + tag = 'UNARY'; + } else if (__indexOf.call(RELATION, tag) >= 0) { + if (tag !== 'INSTANCEOF' && this.seenFor) { + tag = 'FOR' + tag; + this.seenFor = false; + } else { + tag = 'RELATION'; + if (this.value() === '!') { + this.tokens.pop(); + id = '!' + id; + } + } + } + } + if (__indexOf.call(['eval', 'arguments'].concat(JS_FORBIDDEN), id) >= 0) { + if (forcedIdentifier) { + tag = 'IDENTIFIER'; + id = new String(id); + id.reserved = true; + } else if (__indexOf.call(RESERVED, id) >= 0) { + this.error("reserved word \"" + id + "\""); + } + } + if (!forcedIdentifier) { + if (__indexOf.call(COFFEE_ALIASES, id) >= 0) id = COFFEE_ALIAS_MAP[id]; + tag = (function() { + switch (id) { + case '!': + return 'UNARY'; + case '==': + case '!=': + return 'COMPARE'; + case '&&': + case '||': + return 'LOGIC'; + case 'true': + case 'false': + case 'null': + case 'undefined': + return 'BOOL'; + case 'break': + case 'continue': + return 'STATEMENT'; + default: + return tag; + } + })(); + } + this.token(tag, id); + if (colon) this.token(':', ':'); + return input.length; + }; + + Lexer.prototype.numberToken = function() { + var binaryLiteral, lexedLength, match, number; + if (!(match = NUMBER.exec(this.chunk))) return 0; + number = match[0]; + lexedLength = number.length; + if (binaryLiteral = /0b([01]+)/.exec(number)) { + number = (parseInt(binaryLiteral[1], 2)).toString(); + } + this.token('NUMBER', number); + return lexedLength; + }; + + Lexer.prototype.stringToken = function() { + var match, string; + switch (this.chunk.charAt(0)) { + case "'": + if (!(match = SIMPLESTR.exec(this.chunk))) return 0; + this.token('STRING', (string = match[0]).replace(MULTILINER, '\\\n')); + break; + case '"': + if (!(string = this.balancedString(this.chunk, '"'))) return 0; + if (0 < string.indexOf('#{', 1)) { + this.interpolateString(string.slice(1, -1)); + } else { + this.token('STRING', this.escapeLines(string)); + } + break; + default: + return 0; + } + this.line += count(string, '\n'); + return string.length; + }; + + Lexer.prototype.heredocToken = function() { + var doc, heredoc, match, quote; + if (!(match = HEREDOC.exec(this.chunk))) return 0; + heredoc = match[0]; + quote = heredoc.charAt(0); + doc = this.sanitizeHeredoc(match[2], { + quote: quote, + indent: null + }); + if (quote === '"' && 0 <= doc.indexOf('#{')) { + this.interpolateString(doc, { + heredoc: true + }); + } else { + this.token('STRING', this.makeString(doc, quote, true)); + } + this.line += count(heredoc, '\n'); + return heredoc.length; + }; + + Lexer.prototype.commentToken = function() { + var comment, here, match; + if (!(match = this.chunk.match(COMMENT))) return 0; + comment = match[0], here = match[1]; + if (here) { + this.token('HERECOMMENT', this.sanitizeHeredoc(here, { + herecomment: true, + indent: Array(this.indent + 1).join(' ') + })); + this.token('TERMINATOR', '\n'); + } + this.line += count(comment, '\n'); + return comment.length; + }; + + Lexer.prototype.jsToken = function() { + var match, script; + if (!(this.chunk.charAt(0) === '`' && (match = JSTOKEN.exec(this.chunk)))) { + return 0; + } + this.token('JS', (script = match[0]).slice(1, -1)); + return script.length; + }; + + Lexer.prototype.regexToken = function() { + var flags, length, match, prev, regex, _ref3, _ref4; + if (this.chunk.charAt(0) !== '/') return 0; + if (match = HEREGEX.exec(this.chunk)) { + length = this.heregexToken(match); + this.line += count(match[0], '\n'); + return length; + } + prev = last(this.tokens); + if (prev && (_ref3 = prev[0], __indexOf.call((prev.spaced ? NOT_REGEX : NOT_SPACED_REGEX), _ref3) >= 0)) { + return 0; + } + if (!(match = REGEX.exec(this.chunk))) return 0; + _ref4 = match, match = _ref4[0], regex = _ref4[1], flags = _ref4[2]; + if (regex.slice(0, 2) === '/*') { + this.error('regular expressions cannot begin with `*`'); + } + if (regex === '//') regex = '/(?:)/'; + this.token('REGEX', "" + regex + flags); + return match.length; + }; + + Lexer.prototype.heregexToken = function(match) { + var body, flags, heregex, re, tag, tokens, value, _i, _len, _ref3, _ref4, _ref5, _ref6; + heregex = match[0], body = match[1], flags = match[2]; + if (0 > body.indexOf('#{')) { + re = body.replace(HEREGEX_OMIT, '').replace(/\//g, '\\/'); + if (re.match(/^\*/)) { + this.error('regular expressions cannot begin with `*`'); + } + this.token('REGEX', "/" + (re || '(?:)') + "/" + flags); + return heregex.length; + } + this.token('IDENTIFIER', 'RegExp'); + this.tokens.push(['CALL_START', '(']); + tokens = []; + _ref3 = this.interpolateString(body, { + regex: true + }); + for (_i = 0, _len = _ref3.length; _i < _len; _i++) { + _ref4 = _ref3[_i], tag = _ref4[0], value = _ref4[1]; + if (tag === 'TOKENS') { + tokens.push.apply(tokens, value); + } else { + if (!(value = value.replace(HEREGEX_OMIT, ''))) continue; + value = value.replace(/\\/g, '\\\\'); + tokens.push(['STRING', this.makeString(value, '"', true)]); + } + tokens.push(['+', '+']); + } + tokens.pop(); + if (((_ref5 = tokens[0]) != null ? _ref5[0] : void 0) !== 'STRING') { + this.tokens.push(['STRING', '""'], ['+', '+']); + } + (_ref6 = this.tokens).push.apply(_ref6, tokens); + if (flags) this.tokens.push([',', ','], ['STRING', '"' + flags + '"']); + this.token(')', ')'); + return heregex.length; + }; + + Lexer.prototype.lineToken = function() { + var diff, indent, match, noNewlines, prev, size; + if (!(match = MULTI_DENT.exec(this.chunk))) return 0; + indent = match[0]; + this.line += count(indent, '\n'); + this.seenFor = false; + prev = last(this.tokens, 1); + size = indent.length - 1 - indent.lastIndexOf('\n'); + noNewlines = this.unfinished(); + if (size - this.indebt === this.indent) { + if (noNewlines) { + this.suppressNewlines(); + } else { + this.newlineToken(); + } + return indent.length; + } + if (size > this.indent) { + if (noNewlines) { + this.indebt = size - this.indent; + this.suppressNewlines(); + return indent.length; + } + diff = size - this.indent + this.outdebt; + this.token('INDENT', diff); + this.indents.push(diff); + this.ends.push('OUTDENT'); + this.outdebt = this.indebt = 0; + } else { + this.indebt = 0; + this.outdentToken(this.indent - size, noNewlines); + } + this.indent = size; + return indent.length; + }; + + Lexer.prototype.outdentToken = function(moveOut, noNewlines) { + var dent, len; + while (moveOut > 0) { + len = this.indents.length - 1; + if (this.indents[len] === void 0) { + moveOut = 0; + } else if (this.indents[len] === this.outdebt) { + moveOut -= this.outdebt; + this.outdebt = 0; + } else if (this.indents[len] < this.outdebt) { + this.outdebt -= this.indents[len]; + moveOut -= this.indents[len]; + } else { + dent = this.indents.pop() - this.outdebt; + moveOut -= dent; + this.outdebt = 0; + this.pair('OUTDENT'); + this.token('OUTDENT', dent); + } + } + if (dent) this.outdebt -= moveOut; + while (this.value() === ';') { + this.tokens.pop(); + } + if (!(this.tag() === 'TERMINATOR' || noNewlines)) { + this.token('TERMINATOR', '\n'); + } + return this; + }; + + Lexer.prototype.whitespaceToken = function() { + var match, nline, prev; + if (!((match = WHITESPACE.exec(this.chunk)) || (nline = this.chunk.charAt(0) === '\n'))) { + return 0; + } + prev = last(this.tokens); + if (prev) prev[match ? 'spaced' : 'newLine'] = true; + if (match) { + return match[0].length; + } else { + return 0; + } + }; + + Lexer.prototype.newlineToken = function() { + while (this.value() === ';') { + this.tokens.pop(); + } + if (this.tag() !== 'TERMINATOR') this.token('TERMINATOR', '\n'); + return this; + }; + + Lexer.prototype.suppressNewlines = function() { + if (this.value() === '\\') this.tokens.pop(); + return this; + }; + + Lexer.prototype.literalToken = function() { + var match, prev, tag, value, _ref3, _ref4, _ref5, _ref6; + if (match = OPERATOR.exec(this.chunk)) { + value = match[0]; + if (CODE.test(value)) this.tagParameters(); + } else { + value = this.chunk.charAt(0); + } + tag = value; + prev = last(this.tokens); + if (value === '=' && prev) { + if (!prev[1].reserved && (_ref3 = prev[1], __indexOf.call(JS_FORBIDDEN, _ref3) >= 0)) { + this.error("reserved word \"" + (this.value()) + "\" can't be assigned"); + } + if ((_ref4 = prev[1]) === '||' || _ref4 === '&&') { + prev[0] = 'COMPOUND_ASSIGN'; + prev[1] += '='; + return value.length; + } + } + if (value === ';') { + this.seenFor = false; + tag = 'TERMINATOR'; + } else if (__indexOf.call(MATH, value) >= 0) { + tag = 'MATH'; + } else if (__indexOf.call(COMPARE, value) >= 0) { + tag = 'COMPARE'; + } else if (__indexOf.call(COMPOUND_ASSIGN, value) >= 0) { + tag = 'COMPOUND_ASSIGN'; + } else if (__indexOf.call(UNARY, value) >= 0) { + tag = 'UNARY'; + } else if (__indexOf.call(SHIFT, value) >= 0) { + tag = 'SHIFT'; + } else if (__indexOf.call(LOGIC, value) >= 0 || value === '?' && (prev != null ? prev.spaced : void 0)) { + tag = 'LOGIC'; + } else if (prev && !prev.spaced) { + if (value === '(' && (_ref5 = prev[0], __indexOf.call(CALLABLE, _ref5) >= 0)) { + if (prev[0] === '?') prev[0] = 'FUNC_EXIST'; + tag = 'CALL_START'; + } else if (value === '[' && (_ref6 = prev[0], __indexOf.call(INDEXABLE, _ref6) >= 0)) { + tag = 'INDEX_START'; + switch (prev[0]) { + case '?': + prev[0] = 'INDEX_SOAK'; + } + } + } + switch (value) { + case '(': + case '{': + case '[': + this.ends.push(INVERSES[value]); + break; + case ')': + case '}': + case ']': + this.pair(value); + } + this.token(tag, value); + return value.length; + }; + + Lexer.prototype.sanitizeHeredoc = function(doc, options) { + var attempt, herecomment, indent, match, _ref3; + indent = options.indent, herecomment = options.herecomment; + if (herecomment) { + if (HEREDOC_ILLEGAL.test(doc)) { + this.error("block comment cannot contain \"*/\", starting"); + } + if (doc.indexOf('\n') <= 0) return doc; + } else { + while (match = HEREDOC_INDENT.exec(doc)) { + attempt = match[1]; + if (indent === null || (0 < (_ref3 = attempt.length) && _ref3 < indent.length)) { + indent = attempt; + } + } + } + if (indent) doc = doc.replace(RegExp("\\n" + indent, "g"), '\n'); + if (!herecomment) doc = doc.replace(/^\n/, ''); + return doc; + }; + + Lexer.prototype.tagParameters = function() { + var i, stack, tok, tokens; + if (this.tag() !== ')') return this; + stack = []; + tokens = this.tokens; + i = tokens.length; + tokens[--i][0] = 'PARAM_END'; + while (tok = tokens[--i]) { + switch (tok[0]) { + case ')': + stack.push(tok); + break; + case '(': + case 'CALL_START': + if (stack.length) { + stack.pop(); + } else if (tok[0] === '(') { + tok[0] = 'PARAM_START'; + return this; + } else { + return this; + } + } + } + return this; + }; + + Lexer.prototype.closeIndentation = function() { + return this.outdentToken(this.indent); + }; + + Lexer.prototype.balancedString = function(str, end) { + var i, letter, match, prev, stack, _ref3; + stack = [end]; + for (i = 1, _ref3 = str.length; 1 <= _ref3 ? i < _ref3 : i > _ref3; 1 <= _ref3 ? i++ : i--) { + switch (letter = str.charAt(i)) { + case '\\': + i++; + continue; + case end: + stack.pop(); + if (!stack.length) return str.slice(0, i + 1); + end = stack[stack.length - 1]; + continue; + } + if (end === '}' && (letter === '"' || letter === "'")) { + stack.push(end = letter); + } else if (end === '}' && letter === '/' && (match = HEREGEX.exec(str.slice(i)) || REGEX.exec(str.slice(i)))) { + i += match[0].length - 1; + } else if (end === '}' && letter === '{') { + stack.push(end = '}'); + } else if (end === '"' && prev === '#' && letter === '{') { + stack.push(end = '}'); + } + prev = letter; + } + return this.error("missing " + (stack.pop()) + ", starting"); + }; + + Lexer.prototype.interpolateString = function(str, options) { + var expr, heredoc, i, inner, interpolated, len, letter, nested, pi, regex, tag, tokens, value, _len, _ref3, _ref4, _ref5; + if (options == null) options = {}; + heredoc = options.heredoc, regex = options.regex; + tokens = []; + pi = 0; + i = -1; + while (letter = str.charAt(i += 1)) { + if (letter === '\\') { + i += 1; + continue; + } + if (!(letter === '#' && str.charAt(i + 1) === '{' && (expr = this.balancedString(str.slice(i + 1), '}')))) { + continue; + } + if (pi < i) tokens.push(['NEOSTRING', str.slice(pi, i)]); + inner = expr.slice(1, -1); + if (inner.length) { + nested = new Lexer().tokenize(inner, { + line: this.line, + rewrite: false + }); + nested.pop(); + if (((_ref3 = nested[0]) != null ? _ref3[0] : void 0) === 'TERMINATOR') { + nested.shift(); + } + if (len = nested.length) { + if (len > 1) { + nested.unshift(['(', '(', this.line]); + nested.push([')', ')', this.line]); + } + tokens.push(['TOKENS', nested]); + } + } + i += expr.length; + pi = i + 1; + } + if ((i > pi && pi < str.length)) tokens.push(['NEOSTRING', str.slice(pi)]); + if (regex) return tokens; + if (!tokens.length) return this.token('STRING', '""'); + if (tokens[0][0] !== 'NEOSTRING') tokens.unshift(['', '']); + if (interpolated = tokens.length > 1) this.token('(', '('); + for (i = 0, _len = tokens.length; i < _len; i++) { + _ref4 = tokens[i], tag = _ref4[0], value = _ref4[1]; + if (i) this.token('+', '+'); + if (tag === 'TOKENS') { + (_ref5 = this.tokens).push.apply(_ref5, value); + } else { + this.token('STRING', this.makeString(value, '"', heredoc)); + } + } + if (interpolated) this.token(')', ')'); + return tokens; + }; + + Lexer.prototype.pair = function(tag) { + var size, wanted; + if (tag !== (wanted = last(this.ends))) { + if ('OUTDENT' !== wanted) this.error("unmatched " + tag); + this.indent -= size = last(this.indents); + this.outdentToken(size, true); + return this.pair(tag); + } + return this.ends.pop(); + }; + + Lexer.prototype.token = function(tag, value) { + return this.tokens.push([tag, value, this.line]); + }; + + Lexer.prototype.tag = function(index, tag) { + var tok; + return (tok = last(this.tokens, index)) && (tag ? tok[0] = tag : tok[0]); + }; + + Lexer.prototype.value = function(index, val) { + var tok; + return (tok = last(this.tokens, index)) && (val ? tok[1] = val : tok[1]); + }; + + Lexer.prototype.unfinished = function() { + var _ref3; + return LINE_CONTINUER.test(this.chunk) || ((_ref3 = this.tag()) === '\\' || _ref3 === '.' || _ref3 === '?.' || _ref3 === 'UNARY' || _ref3 === 'MATH' || _ref3 === '+' || _ref3 === '-' || _ref3 === 'SHIFT' || _ref3 === 'RELATION' || _ref3 === 'COMPARE' || _ref3 === 'LOGIC' || _ref3 === 'COMPOUND_ASSIGN' || _ref3 === 'THROW' || _ref3 === 'EXTENDS'); + }; + + Lexer.prototype.escapeLines = function(str, heredoc) { + return str.replace(MULTILINER, heredoc ? '\\n' : ''); + }; + + Lexer.prototype.makeString = function(body, quote, heredoc) { + if (!body) return quote + quote; + body = body.replace(/\\([\s\S])/g, function(match, contents) { + if (contents === '\n' || contents === quote) { + return contents; + } else { + return match; + } + }); + body = body.replace(RegExp("" + quote, "g"), '\\$&'); + return quote + this.escapeLines(body, heredoc) + quote; + }; + + Lexer.prototype.error = function(message) { + throw SyntaxError("" + message + " on line " + (this.line + 1)); + }; + + return Lexer; + + })(); + + JS_KEYWORDS = ['true', 'false', 'null', 'this', 'new', 'delete', 'typeof', 'in', 'instanceof', 'return', 'throw', 'break', 'continue', 'debugger', 'if', 'else', 'switch', 'for', 'while', 'do', 'try', 'catch', 'finally', 'class', 'extends', 'super']; + + COFFEE_KEYWORDS = ['undefined', 'then', 'unless', 'until', 'loop', 'of', 'by', 'when']; + + COFFEE_ALIAS_MAP = { + and: '&&', + or: '||', + is: '==', + isnt: '!=', + not: '!', + yes: 'true', + no: 'false', + on: 'true', + off: 'false' + }; + + COFFEE_ALIASES = (function() { + var _results; + _results = []; + for (key in COFFEE_ALIAS_MAP) { + _results.push(key); + } + return _results; + })(); + + COFFEE_KEYWORDS = COFFEE_KEYWORDS.concat(COFFEE_ALIASES); + + RESERVED = ['case', 'default', 'function', 'var', 'void', 'with', 'const', 'let', 'enum', 'export', 'import', 'native', '__hasProp', '__extends', '__slice', '__bind', '__indexOf']; + + JS_FORBIDDEN = JS_KEYWORDS.concat(RESERVED); + + exports.RESERVED = RESERVED.concat(JS_KEYWORDS).concat(COFFEE_KEYWORDS); + + IDENTIFIER = /^([$A-Za-z_\x7f-\uffff][$\w\x7f-\uffff]*)([^\n\S]*:(?!:))?/; + + NUMBER = /^0x[\da-f]+|^0b[01]+|^\d*\.?\d+(?:e[+-]?\d+)?/i; + + HEREDOC = /^("""|''')([\s\S]*?)(?:\n[^\n\S]*)?\1/; + + OPERATOR = /^(?:[-=]>|[-+*\/%<>&|^!?=]=|>>>=?|([-+:])\1|([&|<>])\2=?|\?\.|\.{2,3})/; + + WHITESPACE = /^[^\n\S]+/; + + COMMENT = /^###([^#][\s\S]*?)(?:###[^\n\S]*|(?:###)?$)|^(?:\s*#(?!##[^#]).*)+/; + + CODE = /^[-=]>/; + + MULTI_DENT = /^(?:\n[^\n\S]*)+/; + + SIMPLESTR = /^'[^\\']*(?:\\.[^\\']*)*'/; + + JSTOKEN = /^`[^\\`]*(?:\\.[^\\`]*)*`/; + + REGEX = /^(\/(?![\s=])[^[\/\n\\]*(?:(?:\\[\s\S]|\[[^\]\n\\]*(?:\\[\s\S][^\]\n\\]*)*])[^[\/\n\\]*)*\/)([imgy]{0,4})(?!\w)/; + + HEREGEX = /^\/{3}([\s\S]+?)\/{3}([imgy]{0,4})(?!\w)/; + + HEREGEX_OMIT = /\s+(?:#.*)?/g; + + MULTILINER = /\n/g; + + HEREDOC_INDENT = /\n+([^\n\S]*)/g; + + HEREDOC_ILLEGAL = /\*\//; + + LINE_CONTINUER = /^\s*(?:,|\??\.(?![.\d])|::)/; + + TRAILING_SPACES = /\s+$/; + + COMPOUND_ASSIGN = ['-=', '+=', '/=', '*=', '%=', '||=', '&&=', '?=', '<<=', '>>=', '>>>=', '&=', '^=', '|=']; + + UNARY = ['!', '~', 'NEW', 'TYPEOF', 'DELETE', 'DO']; + + LOGIC = ['&&', '||', '&', '|', '^']; + + SHIFT = ['<<', '>>', '>>>']; + + COMPARE = ['==', '!=', '<', '>', '<=', '>=']; + + MATH = ['*', '/', '%']; + + RELATION = ['IN', 'OF', 'INSTANCEOF']; + + BOOL = ['TRUE', 'FALSE', 'NULL', 'UNDEFINED']; + + NOT_REGEX = ['NUMBER', 'REGEX', 'BOOL', '++', '--', ']']; + + NOT_SPACED_REGEX = NOT_REGEX.concat(')', '}', 'THIS', 'IDENTIFIER', 'STRING'); + + CALLABLE = ['IDENTIFIER', 'STRING', 'REGEX', ')', ']', '}', '?', '::', '@', 'THIS', 'SUPER']; + + INDEXABLE = CALLABLE.concat('NUMBER', 'BOOL'); + + LINE_BREAK = ['INDENT', 'OUTDENT', 'TERMINATOR']; + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/nodes.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/nodes.js new file mode 100644 index 0000000..1941298 --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/nodes.js @@ -0,0 +1,2514 @@ +(function() { + var Access, Arr, Assign, Base, Block, Call, Class, Closure, Code, Comment, Existence, Extends, For, IDENTIFIER, IDENTIFIER_STR, IS_STRING, If, In, Index, LEVEL_ACCESS, LEVEL_COND, LEVEL_LIST, LEVEL_OP, LEVEL_PAREN, LEVEL_TOP, Literal, METHOD_DEF, NEGATE, NO, Obj, Op, Param, Parens, RESERVED, Range, Return, SIMPLENUM, Scope, Slice, Splat, Switch, TAB, THIS, Throw, Try, UTILITIES, Value, While, YES, compact, del, ends, extend, flatten, last, merge, multident, starts, unfoldSoak, utility, _ref, + __hasProp = Object.prototype.hasOwnProperty, + __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor; child.__super__ = parent.prototype; return child; }, + __indexOf = Array.prototype.indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; }; + + Scope = require('./scope').Scope; + + RESERVED = require('./lexer').RESERVED; + + _ref = require('./helpers'), compact = _ref.compact, flatten = _ref.flatten, extend = _ref.extend, merge = _ref.merge, del = _ref.del, starts = _ref.starts, ends = _ref.ends, last = _ref.last; + + exports.extend = extend; + + YES = function() { + return true; + }; + + NO = function() { + return false; + }; + + THIS = function() { + return this; + }; + + NEGATE = function() { + this.negated = !this.negated; + return this; + }; + + exports.Base = Base = (function() { + + function Base() {} + + Base.prototype.compile = function(o, lvl) { + var node; + o = extend({}, o); + if (lvl) o.level = lvl; + node = this.unfoldSoak(o) || this; + node.tab = o.indent; + if (o.level === LEVEL_TOP || !node.isStatement(o)) { + return node.compileNode(o); + } else { + return node.compileClosure(o); + } + }; + + Base.prototype.compileClosure = function(o) { + if (this.jumps()) { + throw SyntaxError('cannot use a pure statement in an expression.'); + } + o.sharedScope = true; + return Closure.wrap(this).compileNode(o); + }; + + Base.prototype.cache = function(o, level, reused) { + var ref, sub; + if (!this.isComplex()) { + ref = level ? this.compile(o, level) : this; + return [ref, ref]; + } else { + ref = new Literal(reused || o.scope.freeVariable('ref')); + sub = new Assign(ref, this); + if (level) { + return [sub.compile(o, level), ref.value]; + } else { + return [sub, ref]; + } + } + }; + + Base.prototype.compileLoopReference = function(o, name) { + var src, tmp; + src = tmp = this.compile(o, LEVEL_LIST); + if (!((-Infinity < +src && +src < Infinity) || IDENTIFIER.test(src) && o.scope.check(src, true))) { + src = "" + (tmp = o.scope.freeVariable(name)) + " = " + src; + } + return [src, tmp]; + }; + + Base.prototype.makeReturn = function(res) { + var me; + me = this.unwrapAll(); + if (res) { + return new Call(new Literal("" + res + ".push"), [me]); + } else { + return new Return(me); + } + }; + + Base.prototype.contains = function(pred) { + var contains; + contains = false; + this.traverseChildren(false, function(node) { + if (pred(node)) { + contains = true; + return false; + } + }); + return contains; + }; + + Base.prototype.containsType = function(type) { + return this instanceof type || this.contains(function(node) { + return node instanceof type; + }); + }; + + Base.prototype.lastNonComment = function(list) { + var i; + i = list.length; + while (i--) { + if (!(list[i] instanceof Comment)) return list[i]; + } + return null; + }; + + Base.prototype.toString = function(idt, name) { + var tree; + if (idt == null) idt = ''; + if (name == null) name = this.constructor.name; + tree = '\n' + idt + name; + if (this.soak) tree += '?'; + this.eachChild(function(node) { + return tree += node.toString(idt + TAB); + }); + return tree; + }; + + Base.prototype.eachChild = function(func) { + var attr, child, _i, _j, _len, _len2, _ref2, _ref3; + if (!this.children) return this; + _ref2 = this.children; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + attr = _ref2[_i]; + if (this[attr]) { + _ref3 = flatten([this[attr]]); + for (_j = 0, _len2 = _ref3.length; _j < _len2; _j++) { + child = _ref3[_j]; + if (func(child) === false) return this; + } + } + } + return this; + }; + + Base.prototype.traverseChildren = function(crossScope, func) { + return this.eachChild(function(child) { + if (func(child) === false) return false; + return child.traverseChildren(crossScope, func); + }); + }; + + Base.prototype.invert = function() { + return new Op('!', this); + }; + + Base.prototype.unwrapAll = function() { + var node; + node = this; + while (node !== (node = node.unwrap())) { + continue; + } + return node; + }; + + Base.prototype.children = []; + + Base.prototype.isStatement = NO; + + Base.prototype.jumps = NO; + + Base.prototype.isComplex = YES; + + Base.prototype.isChainable = NO; + + Base.prototype.isAssignable = NO; + + Base.prototype.unwrap = THIS; + + Base.prototype.unfoldSoak = NO; + + Base.prototype.assigns = NO; + + return Base; + + })(); + + exports.Block = Block = (function(_super) { + + __extends(Block, _super); + + function Block(nodes) { + this.expressions = compact(flatten(nodes || [])); + } + + Block.prototype.children = ['expressions']; + + Block.prototype.push = function(node) { + this.expressions.push(node); + return this; + }; + + Block.prototype.pop = function() { + return this.expressions.pop(); + }; + + Block.prototype.unshift = function(node) { + this.expressions.unshift(node); + return this; + }; + + Block.prototype.unwrap = function() { + if (this.expressions.length === 1) { + return this.expressions[0]; + } else { + return this; + } + }; + + Block.prototype.isEmpty = function() { + return !this.expressions.length; + }; + + Block.prototype.isStatement = function(o) { + var exp, _i, _len, _ref2; + _ref2 = this.expressions; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + exp = _ref2[_i]; + if (exp.isStatement(o)) return true; + } + return false; + }; + + Block.prototype.jumps = function(o) { + var exp, _i, _len, _ref2; + _ref2 = this.expressions; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + exp = _ref2[_i]; + if (exp.jumps(o)) return exp; + } + }; + + Block.prototype.makeReturn = function(res) { + var expr, len; + len = this.expressions.length; + while (len--) { + expr = this.expressions[len]; + if (!(expr instanceof Comment)) { + this.expressions[len] = expr.makeReturn(res); + if (expr instanceof Return && !expr.expression) { + this.expressions.splice(len, 1); + } + break; + } + } + return this; + }; + + Block.prototype.compile = function(o, level) { + if (o == null) o = {}; + if (o.scope) { + return Block.__super__.compile.call(this, o, level); + } else { + return this.compileRoot(o); + } + }; + + Block.prototype.compileNode = function(o) { + var code, codes, node, top, _i, _len, _ref2; + this.tab = o.indent; + top = o.level === LEVEL_TOP; + codes = []; + _ref2 = this.expressions; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + node = _ref2[_i]; + node = node.unwrapAll(); + node = node.unfoldSoak(o) || node; + if (node instanceof Block) { + codes.push(node.compileNode(o)); + } else if (top) { + node.front = true; + code = node.compile(o); + codes.push(node.isStatement(o) ? code : "" + this.tab + code + ";"); + } else { + codes.push(node.compile(o, LEVEL_LIST)); + } + } + if (top) { + if (this.spaced) { + return "\n" + (codes.join('\n\n')) + "\n"; + } else { + return codes.join('\n'); + } + } + code = codes.join(', ') || 'void 0'; + if (codes.length > 1 && o.level >= LEVEL_LIST) { + return "(" + code + ")"; + } else { + return code; + } + }; + + Block.prototype.compileRoot = function(o) { + var code, exp, i, prelude, preludeExps, rest; + o.indent = o.bare ? '' : TAB; + o.scope = new Scope(null, this, null); + o.level = LEVEL_TOP; + this.spaced = true; + prelude = ""; + if (!o.bare) { + preludeExps = (function() { + var _len, _ref2, _results; + _ref2 = this.expressions; + _results = []; + for (i = 0, _len = _ref2.length; i < _len; i++) { + exp = _ref2[i]; + if (!(exp.unwrap() instanceof Comment)) break; + _results.push(exp); + } + return _results; + }).call(this); + rest = this.expressions.slice(preludeExps.length); + this.expressions = preludeExps; + if (preludeExps.length) { + prelude = "" + (this.compileNode(merge(o, { + indent: '' + }))) + "\n"; + } + this.expressions = rest; + } + code = this.compileWithDeclarations(o); + if (o.bare) return code; + return "" + prelude + "(function() {\n" + code + "\n}).call(this);\n"; + }; + + Block.prototype.compileWithDeclarations = function(o) { + var assigns, code, declars, exp, i, post, rest, scope, spaced, _len, _ref2, _ref3, _ref4; + code = post = ''; + _ref2 = this.expressions; + for (i = 0, _len = _ref2.length; i < _len; i++) { + exp = _ref2[i]; + exp = exp.unwrap(); + if (!(exp instanceof Comment || exp instanceof Literal)) break; + } + o = merge(o, { + level: LEVEL_TOP + }); + if (i) { + rest = this.expressions.splice(i, 9e9); + _ref3 = [this.spaced, false], spaced = _ref3[0], this.spaced = _ref3[1]; + _ref4 = [this.compileNode(o), spaced], code = _ref4[0], this.spaced = _ref4[1]; + this.expressions = rest; + } + post = this.compileNode(o); + scope = o.scope; + if (scope.expressions === this) { + declars = o.scope.hasDeclarations(); + assigns = scope.hasAssignments; + if (declars || assigns) { + if (i) code += '\n'; + code += "" + this.tab + "var "; + if (declars) code += scope.declaredVariables().join(', '); + if (assigns) { + if (declars) code += ",\n" + (this.tab + TAB); + code += scope.assignedVariables().join(",\n" + (this.tab + TAB)); + } + code += ';\n'; + } + } + return code + post; + }; + + Block.wrap = function(nodes) { + if (nodes.length === 1 && nodes[0] instanceof Block) return nodes[0]; + return new Block(nodes); + }; + + return Block; + + })(Base); + + exports.Literal = Literal = (function(_super) { + + __extends(Literal, _super); + + function Literal(value) { + this.value = value; + } + + Literal.prototype.makeReturn = function() { + if (this.isStatement()) { + return this; + } else { + return Literal.__super__.makeReturn.apply(this, arguments); + } + }; + + Literal.prototype.isAssignable = function() { + return IDENTIFIER.test(this.value); + }; + + Literal.prototype.isStatement = function() { + var _ref2; + return (_ref2 = this.value) === 'break' || _ref2 === 'continue' || _ref2 === 'debugger'; + }; + + Literal.prototype.isComplex = NO; + + Literal.prototype.assigns = function(name) { + return name === this.value; + }; + + Literal.prototype.jumps = function(o) { + if (this.value === 'break' && !((o != null ? o.loop : void 0) || (o != null ? o.block : void 0))) { + return this; + } + if (this.value === 'continue' && !(o != null ? o.loop : void 0)) return this; + }; + + Literal.prototype.compileNode = function(o) { + var code, _ref2, _ref3; + code = this.isUndefined ? o.level >= LEVEL_ACCESS ? '(void 0)' : 'void 0' : this.value === 'this' ? ((_ref2 = o.scope.method) != null ? _ref2.bound : void 0) ? o.scope.method.context : this.value : this.value.reserved && ((_ref3 = "" + this.value) !== 'eval' && _ref3 !== 'arguments') ? "\"" + this.value + "\"" : this.value; + if (this.isStatement()) { + return "" + this.tab + code + ";"; + } else { + return code; + } + }; + + Literal.prototype.toString = function() { + return ' "' + this.value + '"'; + }; + + return Literal; + + })(Base); + + exports.Return = Return = (function(_super) { + + __extends(Return, _super); + + function Return(expr) { + if (expr && !expr.unwrap().isUndefined) this.expression = expr; + } + + Return.prototype.children = ['expression']; + + Return.prototype.isStatement = YES; + + Return.prototype.makeReturn = THIS; + + Return.prototype.jumps = THIS; + + Return.prototype.compile = function(o, level) { + var expr, _ref2; + expr = (_ref2 = this.expression) != null ? _ref2.makeReturn() : void 0; + if (expr && !(expr instanceof Return)) { + return expr.compile(o, level); + } else { + return Return.__super__.compile.call(this, o, level); + } + }; + + Return.prototype.compileNode = function(o) { + return this.tab + ("return" + [this.expression ? " " + (this.expression.compile(o, LEVEL_PAREN)) : void 0] + ";"); + }; + + return Return; + + })(Base); + + exports.Value = Value = (function(_super) { + + __extends(Value, _super); + + function Value(base, props, tag) { + if (!props && base instanceof Value) return base; + this.base = base; + this.properties = props || []; + if (tag) this[tag] = true; + return this; + } + + Value.prototype.children = ['base', 'properties']; + + Value.prototype.add = function(props) { + this.properties = this.properties.concat(props); + return this; + }; + + Value.prototype.hasProperties = function() { + return !!this.properties.length; + }; + + Value.prototype.isArray = function() { + return !this.properties.length && this.base instanceof Arr; + }; + + Value.prototype.isComplex = function() { + return this.hasProperties() || this.base.isComplex(); + }; + + Value.prototype.isAssignable = function() { + return this.hasProperties() || this.base.isAssignable(); + }; + + Value.prototype.isSimpleNumber = function() { + return this.base instanceof Literal && SIMPLENUM.test(this.base.value); + }; + + Value.prototype.isAtomic = function() { + var node, _i, _len, _ref2; + _ref2 = this.properties.concat(this.base); + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + node = _ref2[_i]; + if (node.soak || node instanceof Call) return false; + } + return true; + }; + + Value.prototype.isStatement = function(o) { + return !this.properties.length && this.base.isStatement(o); + }; + + Value.prototype.assigns = function(name) { + return !this.properties.length && this.base.assigns(name); + }; + + Value.prototype.jumps = function(o) { + return !this.properties.length && this.base.jumps(o); + }; + + Value.prototype.isObject = function(onlyGenerated) { + if (this.properties.length) return false; + return (this.base instanceof Obj) && (!onlyGenerated || this.base.generated); + }; + + Value.prototype.isSplice = function() { + return last(this.properties) instanceof Slice; + }; + + Value.prototype.unwrap = function() { + if (this.properties.length) { + return this; + } else { + return this.base; + } + }; + + Value.prototype.cacheReference = function(o) { + var base, bref, name, nref; + name = last(this.properties); + if (this.properties.length < 2 && !this.base.isComplex() && !(name != null ? name.isComplex() : void 0)) { + return [this, this]; + } + base = new Value(this.base, this.properties.slice(0, -1)); + if (base.isComplex()) { + bref = new Literal(o.scope.freeVariable('base')); + base = new Value(new Parens(new Assign(bref, base))); + } + if (!name) return [base, bref]; + if (name.isComplex()) { + nref = new Literal(o.scope.freeVariable('name')); + name = new Index(new Assign(nref, name.index)); + nref = new Index(nref); + } + return [base.add(name), new Value(bref || base.base, [nref || name])]; + }; + + Value.prototype.compileNode = function(o) { + var code, prop, props, _i, _len; + this.base.front = this.front; + props = this.properties; + code = this.base.compile(o, props.length ? LEVEL_ACCESS : null); + if ((this.base instanceof Parens || props.length) && SIMPLENUM.test(code)) { + code = "" + code + "."; + } + for (_i = 0, _len = props.length; _i < _len; _i++) { + prop = props[_i]; + code += prop.compile(o); + } + return code; + }; + + Value.prototype.unfoldSoak = function(o) { + var result, + _this = this; + if (this.unfoldedSoak != null) return this.unfoldedSoak; + result = (function() { + var fst, i, ifn, prop, ref, snd, _len, _ref2; + if (ifn = _this.base.unfoldSoak(o)) { + Array.prototype.push.apply(ifn.body.properties, _this.properties); + return ifn; + } + _ref2 = _this.properties; + for (i = 0, _len = _ref2.length; i < _len; i++) { + prop = _ref2[i]; + if (!prop.soak) continue; + prop.soak = false; + fst = new Value(_this.base, _this.properties.slice(0, i)); + snd = new Value(_this.base, _this.properties.slice(i)); + if (fst.isComplex()) { + ref = new Literal(o.scope.freeVariable('ref')); + fst = new Parens(new Assign(ref, fst)); + snd.base = ref; + } + return new If(new Existence(fst), snd, { + soak: true + }); + } + return null; + })(); + return this.unfoldedSoak = result || false; + }; + + return Value; + + })(Base); + + exports.Comment = Comment = (function(_super) { + + __extends(Comment, _super); + + function Comment(comment) { + this.comment = comment; + } + + Comment.prototype.isStatement = YES; + + Comment.prototype.makeReturn = THIS; + + Comment.prototype.compileNode = function(o, level) { + var code; + code = '/*' + multident(this.comment, this.tab) + ("\n" + this.tab + "*/"); + if ((level || o.level) === LEVEL_TOP) code = o.indent + code; + return code; + }; + + return Comment; + + })(Base); + + exports.Call = Call = (function(_super) { + + __extends(Call, _super); + + function Call(variable, args, soak) { + this.args = args != null ? args : []; + this.soak = soak; + this.isNew = false; + this.isSuper = variable === 'super'; + this.variable = this.isSuper ? null : variable; + } + + Call.prototype.children = ['variable', 'args']; + + Call.prototype.newInstance = function() { + var base, _ref2; + base = ((_ref2 = this.variable) != null ? _ref2.base : void 0) || this.variable; + if (base instanceof Call && !base.isNew) { + base.newInstance(); + } else { + this.isNew = true; + } + return this; + }; + + Call.prototype.superReference = function(o) { + var accesses, method, name; + method = o.scope.method; + if (!method) throw SyntaxError('cannot call super outside of a function.'); + name = method.name; + if (name == null) { + throw SyntaxError('cannot call super on an anonymous function.'); + } + if (method.klass) { + accesses = [new Access(new Literal('__super__'))]; + if (method.static) accesses.push(new Access(new Literal('constructor'))); + accesses.push(new Access(new Literal(name))); + return (new Value(new Literal(method.klass), accesses)).compile(o); + } else { + return "" + name + ".__super__.constructor"; + } + }; + + Call.prototype.unfoldSoak = function(o) { + var call, ifn, left, list, rite, _i, _len, _ref2, _ref3; + if (this.soak) { + if (this.variable) { + if (ifn = unfoldSoak(o, this, 'variable')) return ifn; + _ref2 = new Value(this.variable).cacheReference(o), left = _ref2[0], rite = _ref2[1]; + } else { + left = new Literal(this.superReference(o)); + rite = new Value(left); + } + rite = new Call(rite, this.args); + rite.isNew = this.isNew; + left = new Literal("typeof " + (left.compile(o)) + " === \"function\""); + return new If(left, new Value(rite), { + soak: true + }); + } + call = this; + list = []; + while (true) { + if (call.variable instanceof Call) { + list.push(call); + call = call.variable; + continue; + } + if (!(call.variable instanceof Value)) break; + list.push(call); + if (!((call = call.variable.base) instanceof Call)) break; + } + _ref3 = list.reverse(); + for (_i = 0, _len = _ref3.length; _i < _len; _i++) { + call = _ref3[_i]; + if (ifn) { + if (call.variable instanceof Call) { + call.variable = ifn; + } else { + call.variable.base = ifn; + } + } + ifn = unfoldSoak(o, call, 'variable'); + } + return ifn; + }; + + Call.prototype.filterImplicitObjects = function(list) { + var node, nodes, obj, prop, properties, _i, _j, _len, _len2, _ref2; + nodes = []; + for (_i = 0, _len = list.length; _i < _len; _i++) { + node = list[_i]; + if (!((typeof node.isObject === "function" ? node.isObject() : void 0) && node.base.generated)) { + nodes.push(node); + continue; + } + obj = null; + _ref2 = node.base.properties; + for (_j = 0, _len2 = _ref2.length; _j < _len2; _j++) { + prop = _ref2[_j]; + if (prop instanceof Assign || prop instanceof Comment) { + if (!obj) nodes.push(obj = new Obj(properties = [], true)); + properties.push(prop); + } else { + nodes.push(prop); + obj = null; + } + } + } + return nodes; + }; + + Call.prototype.compileNode = function(o) { + var arg, args, code, _ref2; + if ((_ref2 = this.variable) != null) _ref2.front = this.front; + if (code = Splat.compileSplattedArray(o, this.args, true)) { + return this.compileSplat(o, code); + } + args = this.filterImplicitObjects(this.args); + args = ((function() { + var _i, _len, _results; + _results = []; + for (_i = 0, _len = args.length; _i < _len; _i++) { + arg = args[_i]; + _results.push(arg.compile(o, LEVEL_LIST)); + } + return _results; + })()).join(', '); + if (this.isSuper) { + return this.superReference(o) + (".call(this" + (args && ', ' + args) + ")"); + } else { + return (this.isNew ? 'new ' : '') + this.variable.compile(o, LEVEL_ACCESS) + ("(" + args + ")"); + } + }; + + Call.prototype.compileSuper = function(args, o) { + return "" + (this.superReference(o)) + ".call(this" + (args.length ? ', ' : '') + args + ")"; + }; + + Call.prototype.compileSplat = function(o, splatArgs) { + var base, fun, idt, name, ref; + if (this.isSuper) { + return "" + (this.superReference(o)) + ".apply(this, " + splatArgs + ")"; + } + if (this.isNew) { + idt = this.tab + TAB; + return "(function(func, args, ctor) {\n" + idt + "ctor.prototype = func.prototype;\n" + idt + "var child = new ctor, result = func.apply(child, args);\n" + idt + "return typeof result === \"object\" ? result : child;\n" + this.tab + "})(" + (this.variable.compile(o, LEVEL_LIST)) + ", " + splatArgs + ", function() {})"; + } + base = new Value(this.variable); + if ((name = base.properties.pop()) && base.isComplex()) { + ref = o.scope.freeVariable('ref'); + fun = "(" + ref + " = " + (base.compile(o, LEVEL_LIST)) + ")" + (name.compile(o)); + } else { + fun = base.compile(o, LEVEL_ACCESS); + if (SIMPLENUM.test(fun)) fun = "(" + fun + ")"; + if (name) { + ref = fun; + fun += name.compile(o); + } else { + ref = 'null'; + } + } + return "" + fun + ".apply(" + ref + ", " + splatArgs + ")"; + }; + + return Call; + + })(Base); + + exports.Extends = Extends = (function(_super) { + + __extends(Extends, _super); + + function Extends(child, parent) { + this.child = child; + this.parent = parent; + } + + Extends.prototype.children = ['child', 'parent']; + + Extends.prototype.compile = function(o) { + return new Call(new Value(new Literal(utility('extends'))), [this.child, this.parent]).compile(o); + }; + + return Extends; + + })(Base); + + exports.Access = Access = (function(_super) { + + __extends(Access, _super); + + function Access(name, tag) { + this.name = name; + this.name.asKey = true; + this.soak = tag === 'soak'; + } + + Access.prototype.children = ['name']; + + Access.prototype.compile = function(o) { + var name; + name = this.name.compile(o); + if (IDENTIFIER.test(name)) { + return "." + name; + } else { + return "[" + name + "]"; + } + }; + + Access.prototype.isComplex = NO; + + return Access; + + })(Base); + + exports.Index = Index = (function(_super) { + + __extends(Index, _super); + + function Index(index) { + this.index = index; + } + + Index.prototype.children = ['index']; + + Index.prototype.compile = function(o) { + return "[" + (this.index.compile(o, LEVEL_PAREN)) + "]"; + }; + + Index.prototype.isComplex = function() { + return this.index.isComplex(); + }; + + return Index; + + })(Base); + + exports.Range = Range = (function(_super) { + + __extends(Range, _super); + + Range.prototype.children = ['from', 'to']; + + function Range(from, to, tag) { + this.from = from; + this.to = to; + this.exclusive = tag === 'exclusive'; + this.equals = this.exclusive ? '' : '='; + } + + Range.prototype.compileVariables = function(o) { + var step, _ref2, _ref3, _ref4, _ref5; + o = merge(o, { + top: true + }); + _ref2 = this.from.cache(o, LEVEL_LIST), this.fromC = _ref2[0], this.fromVar = _ref2[1]; + _ref3 = this.to.cache(o, LEVEL_LIST), this.toC = _ref3[0], this.toVar = _ref3[1]; + if (step = del(o, 'step')) { + _ref4 = step.cache(o, LEVEL_LIST), this.step = _ref4[0], this.stepVar = _ref4[1]; + } + _ref5 = [this.fromVar.match(SIMPLENUM), this.toVar.match(SIMPLENUM)], this.fromNum = _ref5[0], this.toNum = _ref5[1]; + if (this.stepVar) return this.stepNum = this.stepVar.match(SIMPLENUM); + }; + + Range.prototype.compileNode = function(o) { + var cond, condPart, from, gt, idx, known, lt, stepPart, to, varPart, _ref2, _ref3; + if (!this.fromVar) this.compileVariables(o); + if (!o.index) return this.compileArray(o); + known = this.fromNum && this.toNum; + idx = del(o, 'index'); + varPart = "" + idx + " = " + this.fromC; + if (this.toC !== this.toVar) varPart += ", " + this.toC; + if (this.step !== this.stepVar) varPart += ", " + this.step; + _ref2 = ["" + idx + " <" + this.equals, "" + idx + " >" + this.equals], lt = _ref2[0], gt = _ref2[1]; + condPart = this.stepNum ? +this.stepNum > 0 ? "" + lt + " " + this.toVar : "" + gt + " " + this.toVar : known ? ((_ref3 = [+this.fromNum, +this.toNum], from = _ref3[0], to = _ref3[1], _ref3), from <= to ? "" + lt + " " + to : "" + gt + " " + to) : (cond = "" + this.fromVar + " <= " + this.toVar, "" + cond + " ? " + lt + " " + this.toVar + " : " + gt + " " + this.toVar); + stepPart = this.stepVar ? "" + idx + " += " + this.stepVar : known ? from <= to ? "" + idx + "++" : "" + idx + "--" : "" + cond + " ? " + idx + "++ : " + idx + "--"; + return "" + varPart + "; " + condPart + "; " + stepPart; + }; + + Range.prototype.compileArray = function(o) { + var args, body, cond, hasArgs, i, idt, post, pre, range, result, vars, _i, _ref2, _ref3, _results; + if (this.fromNum && this.toNum && Math.abs(this.fromNum - this.toNum) <= 20) { + range = (function() { + _results = []; + for (var _i = _ref2 = +this.fromNum, _ref3 = +this.toNum; _ref2 <= _ref3 ? _i <= _ref3 : _i >= _ref3; _ref2 <= _ref3 ? _i++ : _i--){ _results.push(_i); } + return _results; + }).apply(this); + if (this.exclusive) range.pop(); + return "[" + (range.join(', ')) + "]"; + } + idt = this.tab + TAB; + i = o.scope.freeVariable('i'); + result = o.scope.freeVariable('results'); + pre = "\n" + idt + result + " = [];"; + if (this.fromNum && this.toNum) { + o.index = i; + body = this.compileNode(o); + } else { + vars = ("" + i + " = " + this.fromC) + (this.toC !== this.toVar ? ", " + this.toC : ''); + cond = "" + this.fromVar + " <= " + this.toVar; + body = "var " + vars + "; " + cond + " ? " + i + " <" + this.equals + " " + this.toVar + " : " + i + " >" + this.equals + " " + this.toVar + "; " + cond + " ? " + i + "++ : " + i + "--"; + } + post = "{ " + result + ".push(" + i + "); }\n" + idt + "return " + result + ";\n" + o.indent; + hasArgs = function(node) { + return node != null ? node.contains(function(n) { + return n instanceof Literal && n.value === 'arguments' && !n.asKey; + }) : void 0; + }; + if (hasArgs(this.from) || hasArgs(this.to)) args = ', arguments'; + return "(function() {" + pre + "\n" + idt + "for (" + body + ")" + post + "}).apply(this" + (args != null ? args : '') + ")"; + }; + + return Range; + + })(Base); + + exports.Slice = Slice = (function(_super) { + + __extends(Slice, _super); + + Slice.prototype.children = ['range']; + + function Slice(range) { + this.range = range; + Slice.__super__.constructor.call(this); + } + + Slice.prototype.compileNode = function(o) { + var compiled, from, fromStr, to, toStr, _ref2; + _ref2 = this.range, to = _ref2.to, from = _ref2.from; + fromStr = from && from.compile(o, LEVEL_PAREN) || '0'; + compiled = to && to.compile(o, LEVEL_ACCESS); + if (to && !(!this.range.exclusive && +compiled === -1)) { + toStr = ', ' + (this.range.exclusive ? compiled : SIMPLENUM.test(compiled) ? (+compiled + 1).toString() : "" + compiled + " + 1 || 9e9"); + } + return ".slice(" + fromStr + (toStr || '') + ")"; + }; + + return Slice; + + })(Base); + + exports.Obj = Obj = (function(_super) { + + __extends(Obj, _super); + + function Obj(props, generated) { + this.generated = generated != null ? generated : false; + this.objects = this.properties = props || []; + } + + Obj.prototype.children = ['properties']; + + Obj.prototype.compileNode = function(o) { + var i, idt, indent, join, lastNoncom, node, obj, prop, props, _i, _len; + props = this.properties; + if (!props.length) return (this.front ? '({})' : '{}'); + if (this.generated) { + for (_i = 0, _len = props.length; _i < _len; _i++) { + node = props[_i]; + if (node instanceof Value) { + throw new Error('cannot have an implicit value in an implicit object'); + } + } + } + idt = o.indent += TAB; + lastNoncom = this.lastNonComment(this.properties); + props = (function() { + var _len2, _results; + _results = []; + for (i = 0, _len2 = props.length; i < _len2; i++) { + prop = props[i]; + join = i === props.length - 1 ? '' : prop === lastNoncom || prop instanceof Comment ? '\n' : ',\n'; + indent = prop instanceof Comment ? '' : idt; + if (prop instanceof Value && prop["this"]) { + prop = new Assign(prop.properties[0].name, prop, 'object'); + } + if (!(prop instanceof Comment)) { + if (!(prop instanceof Assign)) prop = new Assign(prop, prop, 'object'); + (prop.variable.base || prop.variable).asKey = true; + } + _results.push(indent + prop.compile(o, LEVEL_TOP) + join); + } + return _results; + })(); + props = props.join(''); + obj = "{" + (props && '\n' + props + '\n' + this.tab) + "}"; + if (this.front) { + return "(" + obj + ")"; + } else { + return obj; + } + }; + + Obj.prototype.assigns = function(name) { + var prop, _i, _len, _ref2; + _ref2 = this.properties; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + prop = _ref2[_i]; + if (prop.assigns(name)) return true; + } + return false; + }; + + return Obj; + + })(Base); + + exports.Arr = Arr = (function(_super) { + + __extends(Arr, _super); + + function Arr(objs) { + this.objects = objs || []; + } + + Arr.prototype.children = ['objects']; + + Arr.prototype.filterImplicitObjects = Call.prototype.filterImplicitObjects; + + Arr.prototype.compileNode = function(o) { + var code, obj, objs; + if (!this.objects.length) return '[]'; + o.indent += TAB; + objs = this.filterImplicitObjects(this.objects); + if (code = Splat.compileSplattedArray(o, objs)) return code; + code = ((function() { + var _i, _len, _results; + _results = []; + for (_i = 0, _len = objs.length; _i < _len; _i++) { + obj = objs[_i]; + _results.push(obj.compile(o, LEVEL_LIST)); + } + return _results; + })()).join(', '); + if (code.indexOf('\n') >= 0) { + return "[\n" + o.indent + code + "\n" + this.tab + "]"; + } else { + return "[" + code + "]"; + } + }; + + Arr.prototype.assigns = function(name) { + var obj, _i, _len, _ref2; + _ref2 = this.objects; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + obj = _ref2[_i]; + if (obj.assigns(name)) return true; + } + return false; + }; + + return Arr; + + })(Base); + + exports.Class = Class = (function(_super) { + + __extends(Class, _super); + + function Class(variable, parent, body) { + this.variable = variable; + this.parent = parent; + this.body = body != null ? body : new Block; + this.boundFuncs = []; + this.body.classBody = true; + } + + Class.prototype.children = ['variable', 'parent', 'body']; + + Class.prototype.determineName = function() { + var decl, tail; + if (!this.variable) return null; + decl = (tail = last(this.variable.properties)) ? tail instanceof Access && tail.name.value : this.variable.base.value; + return decl && (decl = IDENTIFIER.test(decl) && decl); + }; + + Class.prototype.setContext = function(name) { + return this.body.traverseChildren(false, function(node) { + if (node.classBody) return false; + if (node instanceof Literal && node.value === 'this') { + return node.value = name; + } else if (node instanceof Code) { + node.klass = name; + if (node.bound) return node.context = name; + } + }); + }; + + Class.prototype.addBoundFunctions = function(o) { + var bvar, lhs, _i, _len, _ref2, _results; + if (this.boundFuncs.length) { + _ref2 = this.boundFuncs; + _results = []; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + bvar = _ref2[_i]; + lhs = (new Value(new Literal("this"), [new Access(bvar)])).compile(o); + _results.push(this.ctor.body.unshift(new Literal("" + lhs + " = " + (utility('bind')) + "(" + lhs + ", this)"))); + } + return _results; + } + }; + + Class.prototype.addProperties = function(node, name, o) { + var assign, base, exprs, func, props; + props = node.base.properties.slice(0); + exprs = (function() { + var _results; + _results = []; + while (assign = props.shift()) { + if (assign instanceof Assign) { + base = assign.variable.base; + delete assign.context; + func = assign.value; + if (base.value === 'constructor') { + if (this.ctor) { + throw new Error('cannot define more than one constructor in a class'); + } + if (func.bound) { + throw new Error('cannot define a constructor as a bound function'); + } + if (func instanceof Code) { + assign = this.ctor = func; + } else { + this.externalCtor = o.scope.freeVariable('class'); + assign = new Assign(new Literal(this.externalCtor), func); + } + } else { + if (assign.variable["this"]) { + func.static = true; + if (func.bound) func.context = name; + } else { + assign.variable = new Value(new Literal(name), [new Access(new Literal('prototype')), new Access(base)]); + if (func instanceof Code && func.bound) { + this.boundFuncs.push(base); + func.bound = false; + } + } + } + } + _results.push(assign); + } + return _results; + }).call(this); + return compact(exprs); + }; + + Class.prototype.walkBody = function(name, o) { + var _this = this; + return this.traverseChildren(false, function(child) { + var exps, i, node, _len, _ref2; + if (child instanceof Class) return false; + if (child instanceof Block) { + _ref2 = exps = child.expressions; + for (i = 0, _len = _ref2.length; i < _len; i++) { + node = _ref2[i]; + if (node instanceof Value && node.isObject(true)) { + exps[i] = _this.addProperties(node, name, o); + } + } + return child.expressions = exps = flatten(exps); + } + }); + }; + + Class.prototype.ensureConstructor = function(name) { + if (!this.ctor) { + this.ctor = new Code; + if (this.parent) { + this.ctor.body.push(new Literal("" + name + ".__super__.constructor.apply(this, arguments)")); + } + if (this.externalCtor) { + this.ctor.body.push(new Literal("" + this.externalCtor + ".apply(this, arguments)")); + } + this.body.expressions.unshift(this.ctor); + } + this.ctor.ctor = this.ctor.name = name; + this.ctor.klass = null; + return this.ctor.noReturn = true; + }; + + Class.prototype.compileNode = function(o) { + var call, decl, klass, lname, name; + decl = this.determineName(); + name = decl || this.name || '_Class'; + if (name.reserved) name = "_" + name; + lname = new Literal(name); + this.setContext(name); + this.walkBody(name, o); + this.ensureConstructor(name); + this.body.spaced = true; + if (!(this.ctor instanceof Code)) this.body.expressions.unshift(this.ctor); + this.body.expressions.push(lname); + this.addBoundFunctions(o); + call = Closure.wrap(this.body); + if (this.parent) { + this.superClass = new Literal(o.scope.freeVariable('super', false)); + this.body.expressions.unshift(new Extends(lname, this.superClass)); + call.args.push(this.parent); + call.variable.params.push(new Param(this.superClass)); + } + klass = new Parens(call, true); + if (this.variable) klass = new Assign(this.variable, klass); + return klass.compile(o); + }; + + return Class; + + })(Base); + + exports.Assign = Assign = (function(_super) { + + __extends(Assign, _super); + + function Assign(variable, value, context, options) { + this.variable = variable; + this.value = value; + this.context = context; + this.param = options && options.param; + this.subpattern = options && options.subpattern; + } + + Assign.prototype.children = ['variable', 'value']; + + Assign.prototype.isStatement = function(o) { + return (o != null ? o.level : void 0) === LEVEL_TOP && (this.context != null) && __indexOf.call(this.context, "?") >= 0; + }; + + Assign.prototype.assigns = function(name) { + return this[this.context === 'object' ? 'value' : 'variable'].assigns(name); + }; + + Assign.prototype.unfoldSoak = function(o) { + return unfoldSoak(o, this, 'variable'); + }; + + Assign.prototype.compileNode = function(o) { + var isValue, match, name, val, varBase, _ref2, _ref3, _ref4, _ref5; + if (isValue = this.variable instanceof Value) { + if (this.variable.isArray() || this.variable.isObject()) { + return this.compilePatternMatch(o); + } + if (this.variable.isSplice()) return this.compileSplice(o); + if ((_ref2 = this.context) === '||=' || _ref2 === '&&=' || _ref2 === '?=') { + return this.compileConditional(o); + } + } + name = this.variable.compile(o, LEVEL_LIST); + if (!this.context) { + if (!(varBase = this.variable.unwrapAll()).isAssignable()) { + throw SyntaxError("\"" + (this.variable.compile(o)) + "\" cannot be assigned."); + } + if (!(typeof varBase.hasProperties === "function" ? varBase.hasProperties() : void 0)) { + if (this.param) { + o.scope.add(name, 'var'); + } else { + o.scope.find(name); + } + } + } + if (this.value instanceof Code && (match = METHOD_DEF.exec(name))) { + if (match[1]) this.value.klass = match[1]; + this.value.name = (_ref3 = (_ref4 = (_ref5 = match[2]) != null ? _ref5 : match[3]) != null ? _ref4 : match[4]) != null ? _ref3 : match[5]; + } + val = this.value.compile(o, LEVEL_LIST); + if (this.context === 'object') return "" + name + ": " + val; + val = name + (" " + (this.context || '=') + " ") + val; + if (o.level <= LEVEL_LIST) { + return val; + } else { + return "(" + val + ")"; + } + }; + + Assign.prototype.compilePatternMatch = function(o) { + var acc, assigns, code, i, idx, isObject, ivar, name, obj, objects, olen, ref, rest, splat, top, val, value, vvar, _len, _ref2, _ref3, _ref4, _ref5, _ref6, _ref7, _ref8; + top = o.level === LEVEL_TOP; + value = this.value; + objects = this.variable.base.objects; + if (!(olen = objects.length)) { + code = value.compile(o); + if (o.level >= LEVEL_OP) { + return "(" + code + ")"; + } else { + return code; + } + } + isObject = this.variable.isObject(); + if (top && olen === 1 && !((obj = objects[0]) instanceof Splat)) { + if (obj instanceof Assign) { + _ref2 = obj, (_ref3 = _ref2.variable, idx = _ref3.base), obj = _ref2.value; + } else { + if (obj.base instanceof Parens) { + _ref4 = new Value(obj.unwrapAll()).cacheReference(o), obj = _ref4[0], idx = _ref4[1]; + } else { + idx = isObject ? obj["this"] ? obj.properties[0].name : obj : new Literal(0); + } + } + acc = IDENTIFIER.test(idx.unwrap().value || 0); + value = new Value(value); + value.properties.push(new (acc ? Access : Index)(idx)); + if (_ref5 = obj.unwrap().value, __indexOf.call(['arguments', 'eval'].concat(RESERVED), _ref5) >= 0) { + throw new SyntaxError("assignment to a reserved word: " + (obj.compile(o)) + " = " + (value.compile(o))); + } + return new Assign(obj, value, null, { + param: this.param + }).compile(o, LEVEL_TOP); + } + vvar = value.compile(o, LEVEL_LIST); + assigns = []; + splat = false; + if (!IDENTIFIER.test(vvar) || this.variable.assigns(vvar)) { + assigns.push("" + (ref = o.scope.freeVariable('ref')) + " = " + vvar); + vvar = ref; + } + for (i = 0, _len = objects.length; i < _len; i++) { + obj = objects[i]; + idx = i; + if (isObject) { + if (obj instanceof Assign) { + _ref6 = obj, (_ref7 = _ref6.variable, idx = _ref7.base), obj = _ref6.value; + } else { + if (obj.base instanceof Parens) { + _ref8 = new Value(obj.unwrapAll()).cacheReference(o), obj = _ref8[0], idx = _ref8[1]; + } else { + idx = obj["this"] ? obj.properties[0].name : obj; + } + } + } + if (!splat && obj instanceof Splat) { + name = obj.name.unwrap().value; + obj = obj.unwrap(); + val = "" + olen + " <= " + vvar + ".length ? " + (utility('slice')) + ".call(" + vvar + ", " + i; + if (rest = olen - i - 1) { + ivar = o.scope.freeVariable('i'); + val += ", " + ivar + " = " + vvar + ".length - " + rest + ") : (" + ivar + " = " + i + ", [])"; + } else { + val += ") : []"; + } + val = new Literal(val); + splat = "" + ivar + "++"; + } else { + name = obj.unwrap().value; + if (obj instanceof Splat) { + obj = obj.name.compile(o); + throw new SyntaxError("multiple splats are disallowed in an assignment: " + obj + "..."); + } + if (typeof idx === 'number') { + idx = new Literal(splat || idx); + acc = false; + } else { + acc = isObject && IDENTIFIER.test(idx.unwrap().value || 0); + } + val = new Value(new Literal(vvar), [new (acc ? Access : Index)(idx)]); + } + if ((name != null) && __indexOf.call(['arguments', 'eval'].concat(RESERVED), name) >= 0) { + throw new SyntaxError("assignment to a reserved word: " + (obj.compile(o)) + " = " + (val.compile(o))); + } + assigns.push(new Assign(obj, val, null, { + param: this.param, + subpattern: true + }).compile(o, LEVEL_LIST)); + } + if (!(top || this.subpattern)) assigns.push(vvar); + code = assigns.join(', '); + if (o.level < LEVEL_LIST) { + return code; + } else { + return "(" + code + ")"; + } + }; + + Assign.prototype.compileConditional = function(o) { + var left, rite, _ref2; + _ref2 = this.variable.cacheReference(o), left = _ref2[0], rite = _ref2[1]; + if (__indexOf.call(this.context, "?") >= 0) o.isExistentialEquals = true; + return new Op(this.context.slice(0, -1), left, new Assign(rite, this.value, '=')).compile(o); + }; + + Assign.prototype.compileSplice = function(o) { + var code, exclusive, from, fromDecl, fromRef, name, to, valDef, valRef, _ref2, _ref3, _ref4; + _ref2 = this.variable.properties.pop().range, from = _ref2.from, to = _ref2.to, exclusive = _ref2.exclusive; + name = this.variable.compile(o); + _ref3 = (from != null ? from.cache(o, LEVEL_OP) : void 0) || ['0', '0'], fromDecl = _ref3[0], fromRef = _ref3[1]; + if (to) { + if ((from != null ? from.isSimpleNumber() : void 0) && to.isSimpleNumber()) { + to = +to.compile(o) - +fromRef; + if (!exclusive) to += 1; + } else { + to = to.compile(o, LEVEL_ACCESS) + ' - ' + fromRef; + if (!exclusive) to += ' + 1'; + } + } else { + to = "9e9"; + } + _ref4 = this.value.cache(o, LEVEL_LIST), valDef = _ref4[0], valRef = _ref4[1]; + code = "[].splice.apply(" + name + ", [" + fromDecl + ", " + to + "].concat(" + valDef + ")), " + valRef; + if (o.level > LEVEL_TOP) { + return "(" + code + ")"; + } else { + return code; + } + }; + + return Assign; + + })(Base); + + exports.Code = Code = (function(_super) { + + __extends(Code, _super); + + function Code(params, body, tag) { + this.params = params || []; + this.body = body || new Block; + this.bound = tag === 'boundfunc'; + if (this.bound) this.context = '_this'; + } + + Code.prototype.children = ['params', 'body']; + + Code.prototype.isStatement = function() { + return !!this.ctor; + }; + + Code.prototype.jumps = NO; + + Code.prototype.compileNode = function(o) { + var code, exprs, i, idt, lit, p, param, ref, splats, v, val, vars, wasEmpty, _i, _j, _k, _len, _len2, _len3, _len4, _ref2, _ref3, _ref4, _ref5, _ref6; + o.scope = new Scope(o.scope, this.body, this); + o.scope.shared = del(o, 'sharedScope'); + o.indent += TAB; + delete o.bare; + vars = []; + exprs = []; + _ref2 = this.params; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + param = _ref2[_i]; + if (!param.splat) continue; + _ref3 = this.params; + for (_j = 0, _len2 = _ref3.length; _j < _len2; _j++) { + p = _ref3[_j]; + if (p.name.value) o.scope.add(p.name.value, 'var', true); + } + splats = new Assign(new Value(new Arr((function() { + var _k, _len3, _ref4, _results; + _ref4 = this.params; + _results = []; + for (_k = 0, _len3 = _ref4.length; _k < _len3; _k++) { + p = _ref4[_k]; + _results.push(p.asReference(o)); + } + return _results; + }).call(this))), new Value(new Literal('arguments'))); + break; + } + _ref4 = this.params; + for (_k = 0, _len3 = _ref4.length; _k < _len3; _k++) { + param = _ref4[_k]; + if (param.isComplex()) { + val = ref = param.asReference(o); + if (param.value) val = new Op('?', ref, param.value); + exprs.push(new Assign(new Value(param.name), val, '=', { + param: true + })); + } else { + ref = param; + if (param.value) { + lit = new Literal(ref.name.value + ' == null'); + val = new Assign(new Value(param.name), param.value, '='); + exprs.push(new If(lit, val)); + } + } + if (!splats) vars.push(ref); + } + wasEmpty = this.body.isEmpty(); + if (splats) exprs.unshift(splats); + if (exprs.length) { + (_ref5 = this.body.expressions).unshift.apply(_ref5, exprs); + } + if (!splats) { + for (i = 0, _len4 = vars.length; i < _len4; i++) { + v = vars[i]; + o.scope.parameter(vars[i] = v.compile(o)); + } + } + if (!(wasEmpty || this.noReturn)) this.body.makeReturn(); + if (this.bound) { + if ((_ref6 = o.scope.parent.method) != null ? _ref6.bound : void 0) { + this.bound = this.context = o.scope.parent.method.context; + } else if (!this.static) { + o.scope.parent.assign('_this', 'this'); + } + } + idt = o.indent; + code = 'function'; + if (this.ctor) code += ' ' + this.name; + code += '(' + vars.join(', ') + ') {'; + if (!this.body.isEmpty()) { + code += "\n" + (this.body.compileWithDeclarations(o)) + "\n" + this.tab; + } + code += '}'; + if (this.ctor) return this.tab + code; + if (this.front || (o.level >= LEVEL_ACCESS)) { + return "(" + code + ")"; + } else { + return code; + } + }; + + Code.prototype.traverseChildren = function(crossScope, func) { + if (crossScope) { + return Code.__super__.traverseChildren.call(this, crossScope, func); + } + }; + + return Code; + + })(Base); + + exports.Param = Param = (function(_super) { + + __extends(Param, _super); + + function Param(name, value, splat) { + this.name = name; + this.value = value; + this.splat = splat; + } + + Param.prototype.children = ['name', 'value']; + + Param.prototype.compile = function(o) { + return this.name.compile(o, LEVEL_LIST); + }; + + Param.prototype.asReference = function(o) { + var node; + if (this.reference) return this.reference; + node = this.name; + if (node["this"]) { + node = node.properties[0].name; + if (node.value.reserved) node = new Literal('_' + node.value); + } else if (node.isComplex()) { + node = new Literal(o.scope.freeVariable('arg')); + } + node = new Value(node); + if (this.splat) node = new Splat(node); + return this.reference = node; + }; + + Param.prototype.isComplex = function() { + return this.name.isComplex(); + }; + + return Param; + + })(Base); + + exports.Splat = Splat = (function(_super) { + + __extends(Splat, _super); + + Splat.prototype.children = ['name']; + + Splat.prototype.isAssignable = YES; + + function Splat(name) { + this.name = name.compile ? name : new Literal(name); + } + + Splat.prototype.assigns = function(name) { + return this.name.assigns(name); + }; + + Splat.prototype.compile = function(o) { + if (this.index != null) { + return this.compileParam(o); + } else { + return this.name.compile(o); + } + }; + + Splat.prototype.unwrap = function() { + return this.name; + }; + + Splat.compileSplattedArray = function(o, list, apply) { + var args, base, code, i, index, node, _len; + index = -1; + while ((node = list[++index]) && !(node instanceof Splat)) { + continue; + } + if (index >= list.length) return ''; + if (list.length === 1) { + code = list[0].compile(o, LEVEL_LIST); + if (apply) return code; + return "" + (utility('slice')) + ".call(" + code + ")"; + } + args = list.slice(index); + for (i = 0, _len = args.length; i < _len; i++) { + node = args[i]; + code = node.compile(o, LEVEL_LIST); + args[i] = node instanceof Splat ? "" + (utility('slice')) + ".call(" + code + ")" : "[" + code + "]"; + } + if (index === 0) { + return args[0] + (".concat(" + (args.slice(1).join(', ')) + ")"); + } + base = (function() { + var _i, _len2, _ref2, _results; + _ref2 = list.slice(0, index); + _results = []; + for (_i = 0, _len2 = _ref2.length; _i < _len2; _i++) { + node = _ref2[_i]; + _results.push(node.compile(o, LEVEL_LIST)); + } + return _results; + })(); + return "[" + (base.join(', ')) + "].concat(" + (args.join(', ')) + ")"; + }; + + return Splat; + + })(Base); + + exports.While = While = (function(_super) { + + __extends(While, _super); + + function While(condition, options) { + this.condition = (options != null ? options.invert : void 0) ? condition.invert() : condition; + this.guard = options != null ? options.guard : void 0; + } + + While.prototype.children = ['condition', 'guard', 'body']; + + While.prototype.isStatement = YES; + + While.prototype.makeReturn = function(res) { + if (res) { + return While.__super__.makeReturn.apply(this, arguments); + } else { + this.returns = !this.jumps({ + loop: true + }); + return this; + } + }; + + While.prototype.addBody = function(body) { + this.body = body; + return this; + }; + + While.prototype.jumps = function() { + var expressions, node, _i, _len; + expressions = this.body.expressions; + if (!expressions.length) return false; + for (_i = 0, _len = expressions.length; _i < _len; _i++) { + node = expressions[_i]; + if (node.jumps({ + loop: true + })) return node; + } + return false; + }; + + While.prototype.compileNode = function(o) { + var body, code, rvar, set; + o.indent += TAB; + set = ''; + body = this.body; + if (body.isEmpty()) { + body = ''; + } else { + if (this.returns) { + body.makeReturn(rvar = o.scope.freeVariable('results')); + set = "" + this.tab + rvar + " = [];\n"; + } + if (this.guard) { + if (body.expressions.length > 1) { + body.expressions.unshift(new If((new Parens(this.guard)).invert(), new Literal("continue"))); + } else { + if (this.guard) body = Block.wrap([new If(this.guard, body)]); + } + } + body = "\n" + (body.compile(o, LEVEL_TOP)) + "\n" + this.tab; + } + code = set + this.tab + ("while (" + (this.condition.compile(o, LEVEL_PAREN)) + ") {" + body + "}"); + if (this.returns) code += "\n" + this.tab + "return " + rvar + ";"; + return code; + }; + + return While; + + })(Base); + + exports.Op = Op = (function(_super) { + var CONVERSIONS, INVERSIONS; + + __extends(Op, _super); + + function Op(op, first, second, flip) { + var call; + if (op === 'in') return new In(first, second); + if (op === 'do') { + call = new Call(first, first.params || []); + call["do"] = true; + return call; + } + if (op === 'new') { + if (first instanceof Call && !first["do"] && !first.isNew) { + return first.newInstance(); + } + if (first instanceof Code && first.bound || first["do"]) { + first = new Parens(first); + } + } + this.operator = CONVERSIONS[op] || op; + this.first = first; + this.second = second; + this.flip = !!flip; + return this; + } + + CONVERSIONS = { + '==': '===', + '!=': '!==', + 'of': 'in' + }; + + INVERSIONS = { + '!==': '===', + '===': '!==' + }; + + Op.prototype.children = ['first', 'second']; + + Op.prototype.isSimpleNumber = NO; + + Op.prototype.isUnary = function() { + return !this.second; + }; + + Op.prototype.isComplex = function() { + var _ref2; + return !(this.isUnary() && ((_ref2 = this.operator) === '+' || _ref2 === '-')) || this.first.isComplex(); + }; + + Op.prototype.isChainable = function() { + var _ref2; + return (_ref2 = this.operator) === '<' || _ref2 === '>' || _ref2 === '>=' || _ref2 === '<=' || _ref2 === '===' || _ref2 === '!=='; + }; + + Op.prototype.invert = function() { + var allInvertable, curr, fst, op, _ref2; + if (this.isChainable() && this.first.isChainable()) { + allInvertable = true; + curr = this; + while (curr && curr.operator) { + allInvertable && (allInvertable = curr.operator in INVERSIONS); + curr = curr.first; + } + if (!allInvertable) return new Parens(this).invert(); + curr = this; + while (curr && curr.operator) { + curr.invert = !curr.invert; + curr.operator = INVERSIONS[curr.operator]; + curr = curr.first; + } + return this; + } else if (op = INVERSIONS[this.operator]) { + this.operator = op; + if (this.first.unwrap() instanceof Op) this.first.invert(); + return this; + } else if (this.second) { + return new Parens(this).invert(); + } else if (this.operator === '!' && (fst = this.first.unwrap()) instanceof Op && ((_ref2 = fst.operator) === '!' || _ref2 === 'in' || _ref2 === 'instanceof')) { + return fst; + } else { + return new Op('!', this); + } + }; + + Op.prototype.unfoldSoak = function(o) { + var _ref2; + return ((_ref2 = this.operator) === '++' || _ref2 === '--' || _ref2 === 'delete') && unfoldSoak(o, this, 'first'); + }; + + Op.prototype.compileNode = function(o) { + var code, isChain; + isChain = this.isChainable() && this.first.isChainable(); + if (!isChain) this.first.front = this.front; + if (this.isUnary()) return this.compileUnary(o); + if (isChain) return this.compileChain(o); + if (this.operator === '?') return this.compileExistence(o); + code = this.first.compile(o, LEVEL_OP) + ' ' + this.operator + ' ' + this.second.compile(o, LEVEL_OP); + if (o.level <= LEVEL_OP) { + return code; + } else { + return "(" + code + ")"; + } + }; + + Op.prototype.compileChain = function(o) { + var code, fst, shared, _ref2; + _ref2 = this.first.second.cache(o), this.first.second = _ref2[0], shared = _ref2[1]; + fst = this.first.compile(o, LEVEL_OP); + code = "" + fst + " " + (this.invert ? '&&' : '||') + " " + (shared.compile(o)) + " " + this.operator + " " + (this.second.compile(o, LEVEL_OP)); + return "(" + code + ")"; + }; + + Op.prototype.compileExistence = function(o) { + var fst, ref; + if (this.first.isComplex() && o.level > LEVEL_TOP) { + ref = new Literal(o.scope.freeVariable('ref')); + fst = new Parens(new Assign(ref, this.first)); + } else { + fst = this.first; + ref = fst; + } + return new If(new Existence(fst), ref, { + type: 'if' + }).addElse(this.second).compile(o); + }; + + Op.prototype.compileUnary = function(o) { + var op, parts, plusMinus; + parts = [op = this.operator]; + plusMinus = op === '+' || op === '-'; + if ((op === 'new' || op === 'typeof' || op === 'delete') || plusMinus && this.first instanceof Op && this.first.operator === op) { + parts.push(' '); + } + if ((plusMinus && this.first instanceof Op) || (op === 'new' && this.first.isStatement(o))) { + this.first = new Parens(this.first); + } + parts.push(this.first.compile(o, LEVEL_OP)); + if (this.flip) parts.reverse(); + return parts.join(''); + }; + + Op.prototype.toString = function(idt) { + return Op.__super__.toString.call(this, idt, this.constructor.name + ' ' + this.operator); + }; + + return Op; + + })(Base); + + exports.In = In = (function(_super) { + + __extends(In, _super); + + function In(object, array) { + this.object = object; + this.array = array; + } + + In.prototype.children = ['object', 'array']; + + In.prototype.invert = NEGATE; + + In.prototype.compileNode = function(o) { + var hasSplat, obj, _i, _len, _ref2; + if (this.array instanceof Value && this.array.isArray()) { + _ref2 = this.array.base.objects; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + obj = _ref2[_i]; + if (!(obj instanceof Splat)) continue; + hasSplat = true; + break; + } + if (!hasSplat) return this.compileOrTest(o); + } + return this.compileLoopTest(o); + }; + + In.prototype.compileOrTest = function(o) { + var cmp, cnj, i, item, ref, sub, tests, _ref2, _ref3; + if (this.array.base.objects.length === 0) return "" + (!!this.negated); + _ref2 = this.object.cache(o, LEVEL_OP), sub = _ref2[0], ref = _ref2[1]; + _ref3 = this.negated ? [' !== ', ' && '] : [' === ', ' || '], cmp = _ref3[0], cnj = _ref3[1]; + tests = (function() { + var _len, _ref4, _results; + _ref4 = this.array.base.objects; + _results = []; + for (i = 0, _len = _ref4.length; i < _len; i++) { + item = _ref4[i]; + _results.push((i ? ref : sub) + cmp + item.compile(o, LEVEL_ACCESS)); + } + return _results; + }).call(this); + tests = tests.join(cnj); + if (o.level < LEVEL_OP) { + return tests; + } else { + return "(" + tests + ")"; + } + }; + + In.prototype.compileLoopTest = function(o) { + var code, ref, sub, _ref2; + _ref2 = this.object.cache(o, LEVEL_LIST), sub = _ref2[0], ref = _ref2[1]; + code = utility('indexOf') + (".call(" + (this.array.compile(o, LEVEL_LIST)) + ", " + ref + ") ") + (this.negated ? '< 0' : '>= 0'); + if (sub === ref) return code; + code = sub + ', ' + code; + if (o.level < LEVEL_LIST) { + return code; + } else { + return "(" + code + ")"; + } + }; + + In.prototype.toString = function(idt) { + return In.__super__.toString.call(this, idt, this.constructor.name + (this.negated ? '!' : '')); + }; + + return In; + + })(Base); + + exports.Try = Try = (function(_super) { + + __extends(Try, _super); + + function Try(attempt, error, recovery, ensure) { + this.attempt = attempt; + this.error = error; + this.recovery = recovery; + this.ensure = ensure; + } + + Try.prototype.children = ['attempt', 'recovery', 'ensure']; + + Try.prototype.isStatement = YES; + + Try.prototype.jumps = function(o) { + var _ref2; + return this.attempt.jumps(o) || ((_ref2 = this.recovery) != null ? _ref2.jumps(o) : void 0); + }; + + Try.prototype.makeReturn = function(res) { + if (this.attempt) this.attempt = this.attempt.makeReturn(res); + if (this.recovery) this.recovery = this.recovery.makeReturn(res); + return this; + }; + + Try.prototype.compileNode = function(o) { + var catchPart, ensurePart, errorPart, tryPart; + o.indent += TAB; + errorPart = this.error ? " (" + (this.error.compile(o)) + ") " : ' '; + tryPart = this.attempt.compile(o, LEVEL_TOP); + catchPart = this.recovery ? (!o.scope.check(this.error.value) ? o.scope.add(this.error.value, 'param') : void 0, " catch" + errorPart + "{\n" + (this.recovery.compile(o, LEVEL_TOP)) + "\n" + this.tab + "}") : !(this.ensure || this.recovery) ? ' catch (_error) {}' : void 0; + ensurePart = this.ensure ? " finally {\n" + (this.ensure.compile(o, LEVEL_TOP)) + "\n" + this.tab + "}" : ''; + return "" + this.tab + "try {\n" + tryPart + "\n" + this.tab + "}" + (catchPart || '') + ensurePart; + }; + + return Try; + + })(Base); + + exports.Throw = Throw = (function(_super) { + + __extends(Throw, _super); + + function Throw(expression) { + this.expression = expression; + } + + Throw.prototype.children = ['expression']; + + Throw.prototype.isStatement = YES; + + Throw.prototype.jumps = NO; + + Throw.prototype.makeReturn = THIS; + + Throw.prototype.compileNode = function(o) { + return this.tab + ("throw " + (this.expression.compile(o)) + ";"); + }; + + return Throw; + + })(Base); + + exports.Existence = Existence = (function(_super) { + + __extends(Existence, _super); + + function Existence(expression) { + this.expression = expression; + } + + Existence.prototype.children = ['expression']; + + Existence.prototype.invert = NEGATE; + + Existence.prototype.compileNode = function(o) { + var cmp, cnj, code, _ref2; + this.expression.front = this.front; + code = this.expression.compile(o, LEVEL_OP); + if (IDENTIFIER.test(code) && !o.scope.check(code)) { + _ref2 = this.negated ? ['===', '||'] : ['!==', '&&'], cmp = _ref2[0], cnj = _ref2[1]; + code = "typeof " + code + " " + cmp + " \"undefined\" " + cnj + " " + code + " " + cmp + " null"; + } else { + code = "" + code + " " + (this.negated ? '==' : '!=') + " null"; + } + if (o.level <= LEVEL_COND) { + return code; + } else { + return "(" + code + ")"; + } + }; + + return Existence; + + })(Base); + + exports.Parens = Parens = (function(_super) { + + __extends(Parens, _super); + + function Parens(body) { + this.body = body; + } + + Parens.prototype.children = ['body']; + + Parens.prototype.unwrap = function() { + return this.body; + }; + + Parens.prototype.isComplex = function() { + return this.body.isComplex(); + }; + + Parens.prototype.compileNode = function(o) { + var bare, code, expr; + expr = this.body.unwrap(); + if (expr instanceof Value && expr.isAtomic()) { + expr.front = this.front; + return expr.compile(o); + } + code = expr.compile(o, LEVEL_PAREN); + bare = o.level < LEVEL_OP && (expr instanceof Op || expr instanceof Call || (expr instanceof For && expr.returns)); + if (bare) { + return code; + } else { + return "(" + code + ")"; + } + }; + + return Parens; + + })(Base); + + exports.For = For = (function(_super) { + + __extends(For, _super); + + function For(body, source) { + var _ref2; + this.source = source.source, this.guard = source.guard, this.step = source.step, this.name = source.name, this.index = source.index; + this.body = Block.wrap([body]); + this.own = !!source.own; + this.object = !!source.object; + if (this.object) { + _ref2 = [this.index, this.name], this.name = _ref2[0], this.index = _ref2[1]; + } + if (this.index instanceof Value) { + throw SyntaxError('index cannot be a pattern matching expression'); + } + this.range = this.source instanceof Value && this.source.base instanceof Range && !this.source.properties.length; + this.pattern = this.name instanceof Value; + if (this.range && this.index) { + throw SyntaxError('indexes do not apply to range loops'); + } + if (this.range && this.pattern) { + throw SyntaxError('cannot pattern match over range loops'); + } + this.returns = false; + } + + For.prototype.children = ['body', 'source', 'guard', 'step']; + + For.prototype.compileNode = function(o) { + var body, defPart, forPart, forVarPart, guardPart, idt1, index, ivar, lastJumps, lvar, name, namePart, ref, resultPart, returnResult, rvar, scope, source, stepPart, stepvar, svar, varPart, _ref2; + body = Block.wrap([this.body]); + lastJumps = (_ref2 = last(body.expressions)) != null ? _ref2.jumps() : void 0; + if (lastJumps && lastJumps instanceof Return) this.returns = false; + source = this.range ? this.source.base : this.source; + scope = o.scope; + name = this.name && this.name.compile(o, LEVEL_LIST); + index = this.index && this.index.compile(o, LEVEL_LIST); + if (name && !this.pattern) { + scope.find(name, { + immediate: true + }); + } + if (index) { + scope.find(index, { + immediate: true + }); + } + if (this.returns) rvar = scope.freeVariable('results'); + ivar = (this.range ? name : index) || scope.freeVariable('i'); + if (this.step && !this.range) stepvar = scope.freeVariable("step"); + if (this.pattern) name = ivar; + varPart = ''; + guardPart = ''; + defPart = ''; + idt1 = this.tab + TAB; + if (this.range) { + forPart = source.compile(merge(o, { + index: ivar, + step: this.step + })); + } else { + svar = this.source.compile(o, LEVEL_LIST); + if ((name || this.own) && !IDENTIFIER.test(svar)) { + defPart = "" + this.tab + (ref = scope.freeVariable('ref')) + " = " + svar + ";\n"; + svar = ref; + } + if (name && !this.pattern) { + namePart = "" + name + " = " + svar + "[" + ivar + "]"; + } + if (!this.object) { + lvar = scope.freeVariable('len'); + forVarPart = ("" + ivar + " = 0, " + lvar + " = " + svar + ".length") + (this.step ? ", " + stepvar + " = " + (this.step.compile(o, LEVEL_OP)) : ''); + stepPart = this.step ? "" + ivar + " += " + stepvar : "" + ivar + "++"; + forPart = "" + forVarPart + "; " + ivar + " < " + lvar + "; " + stepPart; + } + } + if (this.returns) { + resultPart = "" + this.tab + rvar + " = [];\n"; + returnResult = "\n" + this.tab + "return " + rvar + ";"; + body.makeReturn(rvar); + } + if (this.guard) { + if (body.expressions.length > 1) { + body.expressions.unshift(new If((new Parens(this.guard)).invert(), new Literal("continue"))); + } else { + if (this.guard) body = Block.wrap([new If(this.guard, body)]); + } + } + if (this.pattern) { + body.expressions.unshift(new Assign(this.name, new Literal("" + svar + "[" + ivar + "]"))); + } + defPart += this.pluckDirectCall(o, body); + if (namePart) varPart = "\n" + idt1 + namePart + ";"; + if (this.object) { + forPart = "" + ivar + " in " + svar; + if (this.own) { + guardPart = "\n" + idt1 + "if (!" + (utility('hasProp')) + ".call(" + svar + ", " + ivar + ")) continue;"; + } + } + body = body.compile(merge(o, { + indent: idt1 + }), LEVEL_TOP); + if (body) body = '\n' + body + '\n'; + return "" + defPart + (resultPart || '') + this.tab + "for (" + forPart + ") {" + guardPart + varPart + body + this.tab + "}" + (returnResult || ''); + }; + + For.prototype.pluckDirectCall = function(o, body) { + var base, defs, expr, fn, idx, ref, val, _len, _ref2, _ref3, _ref4, _ref5, _ref6, _ref7; + defs = ''; + _ref2 = body.expressions; + for (idx = 0, _len = _ref2.length; idx < _len; idx++) { + expr = _ref2[idx]; + expr = expr.unwrapAll(); + if (!(expr instanceof Call)) continue; + val = expr.variable.unwrapAll(); + if (!((val instanceof Code) || (val instanceof Value && ((_ref3 = val.base) != null ? _ref3.unwrapAll() : void 0) instanceof Code && val.properties.length === 1 && ((_ref4 = (_ref5 = val.properties[0].name) != null ? _ref5.value : void 0) === 'call' || _ref4 === 'apply')))) { + continue; + } + fn = ((_ref6 = val.base) != null ? _ref6.unwrapAll() : void 0) || val; + ref = new Literal(o.scope.freeVariable('fn')); + base = new Value(ref); + if (val.base) _ref7 = [base, val], val.base = _ref7[0], base = _ref7[1]; + body.expressions[idx] = new Call(base, expr.args); + defs += this.tab + new Assign(ref, fn).compile(o, LEVEL_TOP) + ';\n'; + } + return defs; + }; + + return For; + + })(While); + + exports.Switch = Switch = (function(_super) { + + __extends(Switch, _super); + + function Switch(subject, cases, otherwise) { + this.subject = subject; + this.cases = cases; + this.otherwise = otherwise; + } + + Switch.prototype.children = ['subject', 'cases', 'otherwise']; + + Switch.prototype.isStatement = YES; + + Switch.prototype.jumps = function(o) { + var block, conds, _i, _len, _ref2, _ref3, _ref4; + if (o == null) { + o = { + block: true + }; + } + _ref2 = this.cases; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + _ref3 = _ref2[_i], conds = _ref3[0], block = _ref3[1]; + if (block.jumps(o)) return block; + } + return (_ref4 = this.otherwise) != null ? _ref4.jumps(o) : void 0; + }; + + Switch.prototype.makeReturn = function(res) { + var pair, _i, _len, _ref2, _ref3; + _ref2 = this.cases; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + pair = _ref2[_i]; + pair[1].makeReturn(res); + } + if (res) { + this.otherwise || (this.otherwise = new Block([new Literal('void 0')])); + } + if ((_ref3 = this.otherwise) != null) _ref3.makeReturn(res); + return this; + }; + + Switch.prototype.compileNode = function(o) { + var block, body, code, cond, conditions, expr, i, idt1, idt2, _i, _len, _len2, _ref2, _ref3, _ref4, _ref5; + idt1 = o.indent + TAB; + idt2 = o.indent = idt1 + TAB; + code = this.tab + ("switch (" + (((_ref2 = this.subject) != null ? _ref2.compile(o, LEVEL_PAREN) : void 0) || false) + ") {\n"); + _ref3 = this.cases; + for (i = 0, _len = _ref3.length; i < _len; i++) { + _ref4 = _ref3[i], conditions = _ref4[0], block = _ref4[1]; + _ref5 = flatten([conditions]); + for (_i = 0, _len2 = _ref5.length; _i < _len2; _i++) { + cond = _ref5[_i]; + if (!this.subject) cond = cond.invert(); + code += idt1 + ("case " + (cond.compile(o, LEVEL_PAREN)) + ":\n"); + } + if (body = block.compile(o, LEVEL_TOP)) code += body + '\n'; + if (i === this.cases.length - 1 && !this.otherwise) break; + expr = this.lastNonComment(block.expressions); + if (expr instanceof Return || (expr instanceof Literal && expr.jumps() && expr.value !== 'debugger')) { + continue; + } + code += idt2 + 'break;\n'; + } + if (this.otherwise && this.otherwise.expressions.length) { + code += idt1 + ("default:\n" + (this.otherwise.compile(o, LEVEL_TOP)) + "\n"); + } + return code + this.tab + '}'; + }; + + return Switch; + + })(Base); + + exports.If = If = (function(_super) { + + __extends(If, _super); + + function If(condition, body, options) { + this.body = body; + if (options == null) options = {}; + this.condition = options.type === 'unless' ? condition.invert() : condition; + this.elseBody = null; + this.isChain = false; + this.soak = options.soak; + } + + If.prototype.children = ['condition', 'body', 'elseBody']; + + If.prototype.bodyNode = function() { + var _ref2; + return (_ref2 = this.body) != null ? _ref2.unwrap() : void 0; + }; + + If.prototype.elseBodyNode = function() { + var _ref2; + return (_ref2 = this.elseBody) != null ? _ref2.unwrap() : void 0; + }; + + If.prototype.addElse = function(elseBody) { + if (this.isChain) { + this.elseBodyNode().addElse(elseBody); + } else { + this.isChain = elseBody instanceof If; + this.elseBody = this.ensureBlock(elseBody); + } + return this; + }; + + If.prototype.isStatement = function(o) { + var _ref2; + return (o != null ? o.level : void 0) === LEVEL_TOP || this.bodyNode().isStatement(o) || ((_ref2 = this.elseBodyNode()) != null ? _ref2.isStatement(o) : void 0); + }; + + If.prototype.jumps = function(o) { + var _ref2; + return this.body.jumps(o) || ((_ref2 = this.elseBody) != null ? _ref2.jumps(o) : void 0); + }; + + If.prototype.compileNode = function(o) { + if (this.isStatement(o)) { + return this.compileStatement(o); + } else { + return this.compileExpression(o); + } + }; + + If.prototype.makeReturn = function(res) { + if (res) { + this.elseBody || (this.elseBody = new Block([new Literal('void 0')])); + } + this.body && (this.body = new Block([this.body.makeReturn(res)])); + this.elseBody && (this.elseBody = new Block([this.elseBody.makeReturn(res)])); + return this; + }; + + If.prototype.ensureBlock = function(node) { + if (node instanceof Block) { + return node; + } else { + return new Block([node]); + } + }; + + If.prototype.compileStatement = function(o) { + var body, bodyc, child, cond, exeq, ifPart, _ref2; + child = del(o, 'chainChild'); + exeq = del(o, 'isExistentialEquals'); + if (exeq) { + return new If(this.condition.invert(), this.elseBodyNode(), { + type: 'if' + }).compile(o); + } + cond = this.condition.compile(o, LEVEL_PAREN); + o.indent += TAB; + body = this.ensureBlock(this.body); + bodyc = body.compile(o); + if (1 === ((_ref2 = body.expressions) != null ? _ref2.length : void 0) && !this.elseBody && !child && bodyc && cond && -1 === (bodyc.indexOf('\n')) && 80 > cond.length + bodyc.length) { + return "" + this.tab + "if (" + cond + ") " + (bodyc.replace(/^\s+/, '')); + } + if (bodyc) bodyc = "\n" + bodyc + "\n" + this.tab; + ifPart = "if (" + cond + ") {" + bodyc + "}"; + if (!child) ifPart = this.tab + ifPart; + if (!this.elseBody) return ifPart; + return ifPart + ' else ' + (this.isChain ? (o.indent = this.tab, o.chainChild = true, this.elseBody.unwrap().compile(o, LEVEL_TOP)) : "{\n" + (this.elseBody.compile(o, LEVEL_TOP)) + "\n" + this.tab + "}"); + }; + + If.prototype.compileExpression = function(o) { + var alt, body, code, cond; + cond = this.condition.compile(o, LEVEL_COND); + body = this.bodyNode().compile(o, LEVEL_LIST); + alt = this.elseBodyNode() ? this.elseBodyNode().compile(o, LEVEL_LIST) : 'void 0'; + code = "" + cond + " ? " + body + " : " + alt; + if (o.level >= LEVEL_COND) { + return "(" + code + ")"; + } else { + return code; + } + }; + + If.prototype.unfoldSoak = function() { + return this.soak && this; + }; + + return If; + + })(Base); + + Closure = { + wrap: function(expressions, statement, noReturn) { + var args, call, func, mentionsArgs, meth; + if (expressions.jumps()) return expressions; + func = new Code([], Block.wrap([expressions])); + args = []; + if ((mentionsArgs = expressions.contains(this.literalArgs)) || expressions.contains(this.literalThis)) { + meth = new Literal(mentionsArgs ? 'apply' : 'call'); + args = [new Literal('this')]; + if (mentionsArgs) args.push(new Literal('arguments')); + func = new Value(func, [new Access(meth)]); + } + func.noReturn = noReturn; + call = new Call(func, args); + if (statement) { + return Block.wrap([call]); + } else { + return call; + } + }, + literalArgs: function(node) { + return node instanceof Literal && node.value === 'arguments' && !node.asKey; + }, + literalThis: function(node) { + return (node instanceof Literal && node.value === 'this' && !node.asKey) || (node instanceof Code && node.bound); + } + }; + + unfoldSoak = function(o, parent, name) { + var ifn; + if (!(ifn = parent[name].unfoldSoak(o))) return; + parent[name] = ifn.body; + ifn.body = new Value(parent); + return ifn; + }; + + UTILITIES = { + "extends": function() { + return "function(child, parent) { for (var key in parent) { if (" + (utility('hasProp')) + ".call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor; child.__super__ = parent.prototype; return child; }"; + }, + bind: function() { + return 'function(fn, me){ return function(){ return fn.apply(me, arguments); }; }'; + }, + indexOf: function() { + return "Array.prototype.indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; }"; + }, + hasProp: function() { + return 'Object.prototype.hasOwnProperty'; + }, + slice: function() { + return 'Array.prototype.slice'; + } + }; + + LEVEL_TOP = 1; + + LEVEL_PAREN = 2; + + LEVEL_LIST = 3; + + LEVEL_COND = 4; + + LEVEL_OP = 5; + + LEVEL_ACCESS = 6; + + TAB = ' '; + + IDENTIFIER_STR = "[$A-Za-z_\\x7f-\\uffff][$\\w\\x7f-\\uffff]*"; + + IDENTIFIER = RegExp("^" + IDENTIFIER_STR + "$"); + + SIMPLENUM = /^[+-]?\d+$/; + + METHOD_DEF = RegExp("^(?:(" + IDENTIFIER_STR + ")\\.prototype(?:\\.(" + IDENTIFIER_STR + ")|\\[(\"(?:[^\\\\\"\\r\\n]|\\\\.)*\"|'(?:[^\\\\'\\r\\n]|\\\\.)*')\\]|\\[(0x[\\da-fA-F]+|\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\]))|(" + IDENTIFIER_STR + ")$"); + + IS_STRING = /^['"]/; + + utility = function(name) { + var ref; + ref = "__" + name; + Scope.root.assign(ref, UTILITIES[name]()); + return ref; + }; + + multident = function(code, tab) { + code = code.replace(/\n/g, '$&' + tab); + return code.replace(/\s+$/, ''); + }; + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/optparse.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/optparse.js new file mode 100644 index 0000000..5e0114c --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/optparse.js @@ -0,0 +1,122 @@ +(function() { + var LONG_FLAG, MULTI_FLAG, OPTIONAL, OptionParser, SHORT_FLAG, buildRule, buildRules, normalizeArguments; + + exports.OptionParser = OptionParser = (function() { + + function OptionParser(rules, banner) { + this.banner = banner; + this.rules = buildRules(rules); + } + + OptionParser.prototype.parse = function(args) { + var arg, i, isOption, matchedRule, options, originalArgs, pos, rule, value, _i, _len, _len2, _ref; + options = { + arguments: [], + literals: [] + }; + originalArgs = args; + args = normalizeArguments(args); + for (i = 0, _len = args.length; i < _len; i++) { + arg = args[i]; + if (arg === '--') { + pos = originalArgs.indexOf('--'); + options.arguments = [originalArgs[1 + pos]]; + options.literals = originalArgs.slice(2 + pos); + break; + } + isOption = !!(arg.match(LONG_FLAG) || arg.match(SHORT_FLAG)); + matchedRule = false; + _ref = this.rules; + for (_i = 0, _len2 = _ref.length; _i < _len2; _i++) { + rule = _ref[_i]; + if (rule.shortFlag === arg || rule.longFlag === arg) { + value = rule.hasArgument ? args[i += 1] : true; + options[rule.name] = rule.isList ? (options[rule.name] || []).concat(value) : value; + matchedRule = true; + break; + } + } + if (isOption && !matchedRule) { + throw new Error("unrecognized option: " + arg); + } + if (!isOption) { + options.arguments = originalArgs.slice(originalArgs.indexOf(arg)); + break; + } + } + return options; + }; + + OptionParser.prototype.help = function() { + var letPart, lines, rule, spaces, _i, _len, _ref; + lines = []; + if (this.banner) lines.unshift("" + this.banner + "\n"); + _ref = this.rules; + for (_i = 0, _len = _ref.length; _i < _len; _i++) { + rule = _ref[_i]; + spaces = 15 - rule.longFlag.length; + spaces = spaces > 0 ? Array(spaces + 1).join(' ') : ''; + letPart = rule.shortFlag ? rule.shortFlag + ', ' : ' '; + lines.push(' ' + letPart + rule.longFlag + spaces + rule.description); + } + return "\n" + (lines.join('\n')) + "\n"; + }; + + return OptionParser; + + })(); + + LONG_FLAG = /^(--\w[\w\-]+)/; + + SHORT_FLAG = /^(-\w)/; + + MULTI_FLAG = /^-(\w{2,})/; + + OPTIONAL = /\[(\w+(\*?))\]/; + + buildRules = function(rules) { + var tuple, _i, _len, _results; + _results = []; + for (_i = 0, _len = rules.length; _i < _len; _i++) { + tuple = rules[_i]; + if (tuple.length < 3) tuple.unshift(null); + _results.push(buildRule.apply(null, tuple)); + } + return _results; + }; + + buildRule = function(shortFlag, longFlag, description, options) { + var match; + if (options == null) options = {}; + match = longFlag.match(OPTIONAL); + longFlag = longFlag.match(LONG_FLAG)[1]; + return { + name: longFlag.substr(2), + shortFlag: shortFlag, + longFlag: longFlag, + description: description, + hasArgument: !!(match && match[1]), + isList: !!(match && match[2]) + }; + }; + + normalizeArguments = function(args) { + var arg, l, match, result, _i, _j, _len, _len2, _ref; + args = args.slice(0); + result = []; + for (_i = 0, _len = args.length; _i < _len; _i++) { + arg = args[_i]; + if (match = arg.match(MULTI_FLAG)) { + _ref = match[1].split(''); + for (_j = 0, _len2 = _ref.length; _j < _len2; _j++) { + l = _ref[_j]; + result.push('-' + l); + } + } else { + result.push(arg); + } + } + return result; + }; + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/parser.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/parser.js new file mode 100755 index 0000000..198b563 --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/parser.js @@ -0,0 +1,674 @@ +/* Jison generated parser */ +var parser = (function(){ +var parser = {trace: function trace() { }, +yy: {}, +symbols_: {"error":2,"Root":3,"Body":4,"Block":5,"TERMINATOR":6,"Line":7,"Expression":8,"Statement":9,"Return":10,"Comment":11,"STATEMENT":12,"Value":13,"Invocation":14,"Code":15,"Operation":16,"Assign":17,"If":18,"Try":19,"While":20,"For":21,"Switch":22,"Class":23,"Throw":24,"INDENT":25,"OUTDENT":26,"Identifier":27,"IDENTIFIER":28,"AlphaNumeric":29,"NUMBER":30,"STRING":31,"Literal":32,"JS":33,"REGEX":34,"DEBUGGER":35,"BOOL":36,"Assignable":37,"=":38,"AssignObj":39,"ObjAssignable":40,":":41,"ThisProperty":42,"RETURN":43,"HERECOMMENT":44,"PARAM_START":45,"ParamList":46,"PARAM_END":47,"FuncGlyph":48,"->":49,"=>":50,"OptComma":51,",":52,"Param":53,"ParamVar":54,"...":55,"Array":56,"Object":57,"Splat":58,"SimpleAssignable":59,"Accessor":60,"Parenthetical":61,"Range":62,"This":63,".":64,"?.":65,"::":66,"Index":67,"INDEX_START":68,"IndexValue":69,"INDEX_END":70,"INDEX_SOAK":71,"Slice":72,"{":73,"AssignList":74,"}":75,"CLASS":76,"EXTENDS":77,"OptFuncExist":78,"Arguments":79,"SUPER":80,"FUNC_EXIST":81,"CALL_START":82,"CALL_END":83,"ArgList":84,"THIS":85,"@":86,"[":87,"]":88,"RangeDots":89,"..":90,"Arg":91,"SimpleArgs":92,"TRY":93,"Catch":94,"FINALLY":95,"CATCH":96,"THROW":97,"(":98,")":99,"WhileSource":100,"WHILE":101,"WHEN":102,"UNTIL":103,"Loop":104,"LOOP":105,"ForBody":106,"FOR":107,"ForStart":108,"ForSource":109,"ForVariables":110,"OWN":111,"ForValue":112,"FORIN":113,"FOROF":114,"BY":115,"SWITCH":116,"Whens":117,"ELSE":118,"When":119,"LEADING_WHEN":120,"IfBlock":121,"IF":122,"POST_IF":123,"UNARY":124,"-":125,"+":126,"--":127,"++":128,"?":129,"MATH":130,"SHIFT":131,"COMPARE":132,"LOGIC":133,"RELATION":134,"COMPOUND_ASSIGN":135,"$accept":0,"$end":1}, +terminals_: {2:"error",6:"TERMINATOR",12:"STATEMENT",25:"INDENT",26:"OUTDENT",28:"IDENTIFIER",30:"NUMBER",31:"STRING",33:"JS",34:"REGEX",35:"DEBUGGER",36:"BOOL",38:"=",41:":",43:"RETURN",44:"HERECOMMENT",45:"PARAM_START",47:"PARAM_END",49:"->",50:"=>",52:",",55:"...",64:".",65:"?.",66:"::",68:"INDEX_START",70:"INDEX_END",71:"INDEX_SOAK",73:"{",75:"}",76:"CLASS",77:"EXTENDS",80:"SUPER",81:"FUNC_EXIST",82:"CALL_START",83:"CALL_END",85:"THIS",86:"@",87:"[",88:"]",90:"..",93:"TRY",95:"FINALLY",96:"CATCH",97:"THROW",98:"(",99:")",101:"WHILE",102:"WHEN",103:"UNTIL",105:"LOOP",107:"FOR",111:"OWN",113:"FORIN",114:"FOROF",115:"BY",116:"SWITCH",118:"ELSE",120:"LEADING_WHEN",122:"IF",123:"POST_IF",124:"UNARY",125:"-",126:"+",127:"--",128:"++",129:"?",130:"MATH",131:"SHIFT",132:"COMPARE",133:"LOGIC",134:"RELATION",135:"COMPOUND_ASSIGN"}, +productions_: 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+performAction: function anonymous(yytext,yyleng,yylineno,yy,yystate,$$,_$) { + +var $0 = $$.length - 1; +switch (yystate) { +case 1:return this.$ = new yy.Block; +break; +case 2:return this.$ = $$[$0]; +break; +case 3:return this.$ = $$[$0-1]; +break; +case 4:this.$ = yy.Block.wrap([$$[$0]]); +break; +case 5:this.$ = $$[$0-2].push($$[$0]); +break; +case 6:this.$ = $$[$0-1]; +break; +case 7:this.$ = $$[$0]; +break; +case 8:this.$ = $$[$0]; +break; +case 9:this.$ = $$[$0]; +break; +case 10:this.$ = $$[$0]; +break; +case 11:this.$ = new yy.Literal($$[$0]); +break; +case 12:this.$ = $$[$0]; +break; +case 13:this.$ = $$[$0]; +break; +case 14:this.$ = $$[$0]; +break; +case 15:this.$ = $$[$0]; +break; +case 16:this.$ = $$[$0]; +break; +case 17:this.$ = $$[$0]; +break; +case 18:this.$ = $$[$0]; +break; +case 19:this.$ = $$[$0]; +break; +case 20:this.$ = $$[$0]; +break; +case 21:this.$ = $$[$0]; +break; +case 22:this.$ = $$[$0]; +break; +case 23:this.$ = $$[$0]; +break; +case 24:this.$ = new yy.Block; +break; +case 25:this.$ = $$[$0-1]; +break; +case 26:this.$ = new yy.Literal($$[$0]); +break; +case 27:this.$ = new yy.Literal($$[$0]); +break; +case 28:this.$ = new yy.Literal($$[$0]); +break; +case 29:this.$ = $$[$0]; +break; +case 30:this.$ = new yy.Literal($$[$0]); +break; +case 31:this.$ = new yy.Literal($$[$0]); +break; +case 32:this.$ = new yy.Literal($$[$0]); +break; +case 33:this.$ = (function () { + var val; + val = new yy.Literal($$[$0]); + if ($$[$0] === 'undefined') val.isUndefined = true; + return val; + }()); +break; +case 34:this.$ = new yy.Assign($$[$0-2], $$[$0]); +break; +case 35:this.$ = new yy.Assign($$[$0-3], $$[$0]); +break; +case 36:this.$ = new yy.Assign($$[$0-4], $$[$0-1]); +break; +case 37:this.$ = new yy.Value($$[$0]); +break; +case 38:this.$ = new yy.Assign(new yy.Value($$[$0-2]), $$[$0], 'object'); +break; +case 39:this.$ = new yy.Assign(new yy.Value($$[$0-4]), $$[$0-1], 'object'); +break; +case 40:this.$ = $$[$0]; +break; +case 41:this.$ = $$[$0]; +break; +case 42:this.$ = $$[$0]; +break; +case 43:this.$ = $$[$0]; +break; +case 44:this.$ = new yy.Return($$[$0]); +break; +case 45:this.$ = new yy.Return; +break; +case 46:this.$ = new yy.Comment($$[$0]); +break; +case 47:this.$ = new yy.Code($$[$0-3], $$[$0], $$[$0-1]); +break; +case 48:this.$ = new yy.Code([], $$[$0], $$[$0-1]); +break; +case 49:this.$ = 'func'; +break; +case 50:this.$ = 'boundfunc'; +break; +case 51:this.$ = $$[$0]; +break; +case 52:this.$ = $$[$0]; +break; +case 53:this.$ = []; +break; +case 54:this.$ = [$$[$0]]; +break; +case 55:this.$ = $$[$0-2].concat($$[$0]); +break; +case 56:this.$ = new yy.Param($$[$0]); +break; +case 57:this.$ = new yy.Param($$[$0-1], null, true); +break; +case 58:this.$ = new yy.Param($$[$0-2], $$[$0]); +break; +case 59:this.$ = $$[$0]; +break; +case 60:this.$ = $$[$0]; +break; +case 61:this.$ = $$[$0]; +break; +case 62:this.$ = $$[$0]; +break; +case 63:this.$ = new yy.Splat($$[$0-1]); +break; +case 64:this.$ = new yy.Value($$[$0]); +break; +case 65:this.$ = $$[$0-1].add($$[$0]); +break; +case 66:this.$ = new yy.Value($$[$0-1], [].concat($$[$0])); +break; +case 67:this.$ = $$[$0]; +break; +case 68:this.$ = $$[$0]; +break; +case 69:this.$ = new yy.Value($$[$0]); +break; +case 70:this.$ = new yy.Value($$[$0]); +break; +case 71:this.$ = $$[$0]; +break; +case 72:this.$ = new yy.Value($$[$0]); +break; +case 73:this.$ = new yy.Value($$[$0]); +break; +case 74:this.$ = new yy.Value($$[$0]); +break; +case 75:this.$ = $$[$0]; +break; +case 76:this.$ = new yy.Access($$[$0]); +break; +case 77:this.$ = new yy.Access($$[$0], 'soak'); +break; +case 78:this.$ = [new yy.Access(new yy.Literal('prototype')), new yy.Access($$[$0])]; +break; +case 79:this.$ = new yy.Access(new yy.Literal('prototype')); +break; +case 80:this.$ = $$[$0]; +break; +case 81:this.$ = $$[$0-1]; +break; +case 82:this.$ = yy.extend($$[$0], { + soak: true + }); +break; +case 83:this.$ = new yy.Index($$[$0]); +break; +case 84:this.$ = new yy.Slice($$[$0]); +break; +case 85:this.$ = new yy.Obj($$[$0-2], $$[$0-3].generated); +break; +case 86:this.$ = []; +break; +case 87:this.$ = [$$[$0]]; +break; +case 88:this.$ = $$[$0-2].concat($$[$0]); +break; +case 89:this.$ = $$[$0-3].concat($$[$0]); +break; +case 90:this.$ = $$[$0-5].concat($$[$0-2]); +break; +case 91:this.$ = new yy.Class; +break; +case 92:this.$ = new yy.Class(null, null, $$[$0]); +break; +case 93:this.$ = new yy.Class(null, $$[$0]); +break; +case 94:this.$ = new yy.Class(null, $$[$0-1], $$[$0]); +break; +case 95:this.$ = new yy.Class($$[$0]); +break; +case 96:this.$ = new yy.Class($$[$0-1], null, $$[$0]); +break; +case 97:this.$ = new yy.Class($$[$0-2], $$[$0]); +break; +case 98:this.$ = new yy.Class($$[$0-3], $$[$0-1], $$[$0]); +break; +case 99:this.$ = new yy.Call($$[$0-2], $$[$0], $$[$0-1]); +break; +case 100:this.$ = new yy.Call($$[$0-2], $$[$0], $$[$0-1]); +break; +case 101:this.$ = new yy.Call('super', [new yy.Splat(new yy.Literal('arguments'))]); +break; +case 102:this.$ = new yy.Call('super', $$[$0]); +break; +case 103:this.$ = false; +break; +case 104:this.$ = true; +break; +case 105:this.$ = []; +break; +case 106:this.$ = $$[$0-2]; +break; +case 107:this.$ = new yy.Value(new yy.Literal('this')); +break; +case 108:this.$ = new yy.Value(new yy.Literal('this')); +break; +case 109:this.$ = new yy.Value(new yy.Literal('this'), [new yy.Access($$[$0])], 'this'); +break; +case 110:this.$ = new yy.Arr([]); +break; +case 111:this.$ = new yy.Arr($$[$0-2]); +break; +case 112:this.$ = 'inclusive'; +break; +case 113:this.$ = 'exclusive'; +break; +case 114:this.$ = new yy.Range($$[$0-3], $$[$0-1], $$[$0-2]); +break; +case 115:this.$ = new yy.Range($$[$0-2], $$[$0], $$[$0-1]); +break; +case 116:this.$ = new yy.Range($$[$0-1], null, $$[$0]); +break; +case 117:this.$ = new yy.Range(null, $$[$0], $$[$0-1]); +break; +case 118:this.$ = [$$[$0]]; +break; +case 119:this.$ = $$[$0-2].concat($$[$0]); +break; +case 120:this.$ = $$[$0-3].concat($$[$0]); +break; +case 121:this.$ = $$[$0-2]; +break; +case 122:this.$ = $$[$0-5].concat($$[$0-2]); +break; +case 123:this.$ = $$[$0]; +break; +case 124:this.$ = $$[$0]; +break; +case 125:this.$ = $$[$0]; +break; +case 126:this.$ = [].concat($$[$0-2], $$[$0]); +break; +case 127:this.$ = new yy.Try($$[$0]); +break; +case 128:this.$ = new yy.Try($$[$0-1], $$[$0][0], $$[$0][1]); +break; +case 129:this.$ = new yy.Try($$[$0-2], null, null, $$[$0]); +break; +case 130:this.$ = new yy.Try($$[$0-3], $$[$0-2][0], $$[$0-2][1], $$[$0]); +break; +case 131:this.$ = [$$[$0-1], $$[$0]]; +break; +case 132:this.$ = new yy.Throw($$[$0]); +break; +case 133:this.$ = new yy.Parens($$[$0-1]); +break; +case 134:this.$ = new yy.Parens($$[$0-2]); +break; +case 135:this.$ = new yy.While($$[$0]); +break; +case 136:this.$ = new yy.While($$[$0-2], { + guard: $$[$0] + }); +break; +case 137:this.$ = new yy.While($$[$0], { + invert: true + }); +break; +case 138:this.$ = new yy.While($$[$0-2], { + invert: true, + guard: $$[$0] + }); +break; +case 139:this.$ = $$[$0-1].addBody($$[$0]); +break; +case 140:this.$ = $$[$0].addBody(yy.Block.wrap([$$[$0-1]])); +break; +case 141:this.$ = $$[$0].addBody(yy.Block.wrap([$$[$0-1]])); +break; +case 142:this.$ = $$[$0]; +break; +case 143:this.$ = new yy.While(new yy.Literal('true')).addBody($$[$0]); +break; +case 144:this.$ = new yy.While(new yy.Literal('true')).addBody(yy.Block.wrap([$$[$0]])); +break; +case 145:this.$ = new yy.For($$[$0-1], $$[$0]); +break; +case 146:this.$ = new yy.For($$[$0-1], $$[$0]); +break; +case 147:this.$ = new yy.For($$[$0], $$[$0-1]); +break; +case 148:this.$ = { + source: new yy.Value($$[$0]) + }; +break; +case 149:this.$ = (function () { + $$[$0].own = $$[$0-1].own; + $$[$0].name = $$[$0-1][0]; + $$[$0].index = $$[$0-1][1]; + return $$[$0]; + }()); +break; +case 150:this.$ = $$[$0]; +break; +case 151:this.$ = (function () { + $$[$0].own = true; + return $$[$0]; + }()); +break; +case 152:this.$ = $$[$0]; +break; +case 153:this.$ = new yy.Value($$[$0]); +break; +case 154:this.$ = new yy.Value($$[$0]); +break; +case 155:this.$ = [$$[$0]]; +break; +case 156:this.$ = [$$[$0-2], $$[$0]]; +break; +case 157:this.$ = { + source: $$[$0] + }; +break; +case 158:this.$ = { + source: $$[$0], + object: true + }; +break; +case 159:this.$ = { + source: $$[$0-2], + guard: $$[$0] + }; +break; +case 160:this.$ = { + source: $$[$0-2], + guard: $$[$0], + object: true + }; +break; +case 161:this.$ = { + source: $$[$0-2], + step: $$[$0] + }; +break; +case 162:this.$ = { + source: $$[$0-4], + guard: $$[$0-2], + step: $$[$0] + }; +break; +case 163:this.$ = { + source: $$[$0-4], + step: $$[$0-2], + guard: $$[$0] + }; +break; +case 164:this.$ = new yy.Switch($$[$0-3], $$[$0-1]); +break; +case 165:this.$ = new yy.Switch($$[$0-5], $$[$0-3], $$[$0-1]); +break; +case 166:this.$ = new yy.Switch(null, $$[$0-1]); +break; +case 167:this.$ = new yy.Switch(null, $$[$0-3], $$[$0-1]); +break; +case 168:this.$ = $$[$0]; +break; +case 169:this.$ = $$[$0-1].concat($$[$0]); +break; +case 170:this.$ = [[$$[$0-1], $$[$0]]]; +break; +case 171:this.$ = [[$$[$0-2], $$[$0-1]]]; +break; +case 172:this.$ = new yy.If($$[$0-1], $$[$0], { + type: $$[$0-2] + }); +break; +case 173:this.$ = $$[$0-4].addElse(new yy.If($$[$0-1], $$[$0], { + type: $$[$0-2] + })); +break; +case 174:this.$ = $$[$0]; +break; +case 175:this.$ = $$[$0-2].addElse($$[$0]); +break; +case 176:this.$ = new yy.If($$[$0], yy.Block.wrap([$$[$0-2]]), { + type: $$[$0-1], + statement: true + }); +break; +case 177:this.$ = new yy.If($$[$0], yy.Block.wrap([$$[$0-2]]), { + type: $$[$0-1], + statement: true + }); +break; +case 178:this.$ = new yy.Op($$[$0-1], $$[$0]); +break; +case 179:this.$ = new yy.Op('-', $$[$0]); +break; +case 180:this.$ = new yy.Op('+', $$[$0]); +break; +case 181:this.$ = new yy.Op('--', $$[$0]); +break; +case 182:this.$ = new yy.Op('++', $$[$0]); +break; +case 183:this.$ = new yy.Op('--', $$[$0-1], null, true); +break; +case 184:this.$ = new yy.Op('++', $$[$0-1], null, true); +break; +case 185:this.$ = new yy.Existence($$[$0-1]); +break; +case 186:this.$ = new yy.Op('+', $$[$0-2], $$[$0]); +break; +case 187:this.$ = new yy.Op('-', $$[$0-2], $$[$0]); +break; +case 188:this.$ = new yy.Op($$[$0-1], $$[$0-2], $$[$0]); +break; +case 189:this.$ = new yy.Op($$[$0-1], $$[$0-2], $$[$0]); +break; +case 190:this.$ = new yy.Op($$[$0-1], $$[$0-2], $$[$0]); +break; +case 191:this.$ = new yy.Op($$[$0-1], $$[$0-2], $$[$0]); +break; +case 192:this.$ = (function () { + if ($$[$0-1].charAt(0) === '!') { + return new yy.Op($$[$0-1].slice(1), $$[$0-2], $$[$0]).invert(); + } else { + return new yy.Op($$[$0-1], $$[$0-2], $$[$0]); + } + }()); +break; +case 193:this.$ = new yy.Assign($$[$0-2], $$[$0], $$[$0-1]); +break; +case 194:this.$ = new yy.Assign($$[$0-4], $$[$0-1], $$[$0-3]); +break; +case 195:this.$ = new yy.Extends($$[$0-2], $$[$0]); +break; +} +}, +table: 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+defaultActions: {58:[2,49],59:[2,50],73:[2,3],92:[2,104],186:[2,84]}, +parseError: function parseError(str, hash) { + throw new Error(str); +}, +parse: function parse(input) { + var self = this, + stack = [0], + vstack = [null], // semantic value stack + lstack = [], // location stack + table = this.table, + yytext = '', + yylineno = 0, + yyleng = 0, + recovering = 0, + TERROR = 2, + EOF = 1; + + //this.reductionCount = this.shiftCount = 0; + + this.lexer.setInput(input); + this.lexer.yy = this.yy; + this.yy.lexer = this.lexer; + if (typeof this.lexer.yylloc == 'undefined') + this.lexer.yylloc = {}; + var yyloc = this.lexer.yylloc; + lstack.push(yyloc); + + if (typeof this.yy.parseError === 'function') + this.parseError = this.yy.parseError; + + function popStack (n) { + stack.length = stack.length - 2*n; + vstack.length = vstack.length - n; + lstack.length = lstack.length - n; + } + + function lex() { + var token; + token = self.lexer.lex() || 1; // $end = 1 + // if token isn't its numeric value, convert + if (typeof token !== 'number') { + token = self.symbols_[token] || token; + } + return token; + }; + + var symbol, preErrorSymbol, state, action, a, r, yyval={},p,len,newState, expected; + while (true) { + // retreive state number from top of stack + state = stack[stack.length-1]; + + // use default actions if available + if (this.defaultActions[state]) { + action = this.defaultActions[state]; + } else { + if (symbol == null) + symbol = lex(); + // read action for current state and first input + action = table[state] && table[state][symbol]; + } + + // handle parse error + if (typeof action === 'undefined' || !action.length || !action[0]) { + + if (!recovering) { + // Report error + expected = []; + for (p in table[state]) if (this.terminals_[p] && p > 2) { + expected.push("'"+this.terminals_[p]+"'"); + } + var errStr = ''; + if (this.lexer.showPosition) { + errStr = 'Parse error on line '+(yylineno+1)+":\n"+this.lexer.showPosition()+'\nExpecting '+expected.join(', '); + } else { + errStr = 'Parse error on line '+(yylineno+1)+": Unexpected " + + (symbol == 1 /*EOF*/ ? "end of input" : + ("'"+(this.terminals_[symbol] || symbol)+"'")); + } + this.parseError(errStr, + {text: this.lexer.match, token: this.terminals_[symbol] || symbol, line: this.lexer.yylineno, loc: yyloc, expected: expected}); + } + + // just recovered from another error + if (recovering == 3) { + if (symbol == EOF) { + throw new Error(errStr || 'Parsing halted.'); + } + + // discard current lookahead and grab another + yyleng = this.lexer.yyleng; + yytext = this.lexer.yytext; + yylineno = this.lexer.yylineno; + yyloc = this.lexer.yylloc; + symbol = lex(); + } + + // try to recover from error + while (1) { + // check for error recovery rule in this state + if ((TERROR.toString()) in table[state]) { + break; + } + if (state == 0) { + throw new Error(errStr || 'Parsing halted.'); + } + popStack(1); + state = stack[stack.length-1]; + } + + preErrorSymbol = symbol; // save the lookahead token + symbol = TERROR; // insert generic error symbol as new lookahead + state = stack[stack.length-1]; + action = table[state] && table[state][TERROR]; + recovering = 3; // allow 3 real symbols to be shifted before reporting a new error + } + + // this shouldn't happen, unless resolve defaults are off + if (action[0] instanceof Array && action.length > 1) { + throw new Error('Parse Error: multiple actions possible at state: '+state+', token: '+symbol); + } + + switch (action[0]) { + + case 1: // shift + //this.shiftCount++; + + stack.push(symbol); + vstack.push(this.lexer.yytext); + lstack.push(this.lexer.yylloc); + stack.push(action[1]); // push state + symbol = null; + if (!preErrorSymbol) { // normal execution/no error + yyleng = this.lexer.yyleng; + yytext = this.lexer.yytext; + yylineno = this.lexer.yylineno; + yyloc = this.lexer.yylloc; + if (recovering > 0) + recovering--; + } else { // error just occurred, resume old lookahead f/ before error + symbol = preErrorSymbol; + preErrorSymbol = null; + } + break; + + case 2: // reduce + //this.reductionCount++; + + len = this.productions_[action[1]][1]; + + // perform semantic action + yyval.$ = vstack[vstack.length-len]; // default to $$ = $1 + // default location, uses first token for firsts, last for lasts + yyval._$ = { + first_line: lstack[lstack.length-(len||1)].first_line, + last_line: lstack[lstack.length-1].last_line, + first_column: lstack[lstack.length-(len||1)].first_column, + last_column: lstack[lstack.length-1].last_column + }; + r = this.performAction.call(yyval, yytext, yyleng, yylineno, this.yy, action[1], vstack, lstack); + + if (typeof r !== 'undefined') { + return r; + } + + // pop off stack + if (len) { + stack = stack.slice(0,-1*len*2); + vstack = vstack.slice(0, -1*len); + lstack = lstack.slice(0, -1*len); + } + + stack.push(this.productions_[action[1]][0]); // push nonterminal (reduce) + vstack.push(yyval.$); + lstack.push(yyval._$); + // goto new state = table[STATE][NONTERMINAL] + newState = table[stack[stack.length-2]][stack[stack.length-1]]; + stack.push(newState); + break; + + case 3: // accept + return true; + } + + } + + return true; +}}; +return parser; +})(); +if (typeof require !== 'undefined' && typeof exports !== 'undefined') { +exports.parser = parser; +exports.parse = function () { return parser.parse.apply(parser, arguments); } +exports.main = function commonjsMain(args) { + if (!args[1]) + throw new Error('Usage: '+args[0]+' FILE'); + if (typeof process !== 'undefined') { + var source = require('fs').readFileSync(require('path').join(process.cwd(), args[1]), "utf8"); + } else { + var cwd = require("file").path(require("file").cwd()); + var source = cwd.join(args[1]).read({charset: "utf-8"}); + } + return exports.parser.parse(source); +} +if (typeof module !== 'undefined' && require.main === module) { + exports.main(typeof process !== 'undefined' ? process.argv.slice(1) : require("system").args); +} +} \ No newline at end of file diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/repl.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/repl.js new file mode 100644 index 0000000..3368d7c --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/repl.js @@ -0,0 +1,149 @@ +(function() { + var ACCESSOR, CoffeeScript, Module, REPL_PROMPT, REPL_PROMPT_CONTINUATION, SIMPLEVAR, Script, autocomplete, backlog, completeAttribute, completeVariable, enableColours, error, getCompletions, inspect, readline, repl, run, stdin, stdout; + + CoffeeScript = require('./coffee-script'); + + readline = require('readline'); + + inspect = require('util').inspect; + + Script = require('vm').Script; + + Module = require('module'); + + REPL_PROMPT = 'coffee> '; + + REPL_PROMPT_CONTINUATION = '......> '; + + enableColours = false; + + if (process.platform !== 'win32') { + enableColours = !process.env.NODE_DISABLE_COLORS; + } + + stdin = process.openStdin(); + + stdout = process.stdout; + + error = function(err) { + return stdout.write((err.stack || err.toString()) + '\n'); + }; + + backlog = ''; + + run = function(buffer) { + var code, returnValue, _; + if (!buffer.toString().trim() && !backlog) { + repl.prompt(); + return; + } + code = backlog += buffer; + if (code[code.length - 1] === '\\') { + backlog = "" + backlog.slice(0, -1) + "\n"; + repl.setPrompt(REPL_PROMPT_CONTINUATION); + repl.prompt(); + return; + } + repl.setPrompt(REPL_PROMPT); + backlog = ''; + try { + _ = global._; + returnValue = CoffeeScript.eval("_=(" + code + "\n)", { + filename: 'repl', + modulename: 'repl' + }); + if (returnValue === void 0) global._ = _; + process.stdout.write(inspect(returnValue, false, 2, enableColours) + '\n'); + } catch (err) { + error(err); + } + return repl.prompt(); + }; + + ACCESSOR = /\s*([\w\.]+)(?:\.(\w*))$/; + + SIMPLEVAR = /\s*(\w*)$/i; + + autocomplete = function(text) { + return completeAttribute(text) || completeVariable(text) || [[], text]; + }; + + completeAttribute = function(text) { + var all, completions, match, obj, prefix, val; + if (match = text.match(ACCESSOR)) { + all = match[0], obj = match[1], prefix = match[2]; + try { + val = Script.runInThisContext(obj); + } catch (error) { + return; + } + completions = getCompletions(prefix, Object.getOwnPropertyNames(val)); + return [completions, prefix]; + } + }; + + completeVariable = function(text) { + var completions, free, keywords, possibilities, r, vars, _ref; + free = (_ref = text.match(SIMPLEVAR)) != null ? _ref[1] : void 0; + if (free != null) { + vars = Script.runInThisContext('Object.getOwnPropertyNames(this)'); + keywords = (function() { + var _i, _len, _ref2, _results; + _ref2 = CoffeeScript.RESERVED; + _results = []; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + r = _ref2[_i]; + if (r.slice(0, 2) !== '__') _results.push(r); + } + return _results; + })(); + possibilities = vars.concat(keywords); + completions = getCompletions(free, possibilities); + return [completions, free]; + } + }; + + getCompletions = function(prefix, candidates) { + var el, _i, _len, _results; + _results = []; + for (_i = 0, _len = candidates.length; _i < _len; _i++) { + el = candidates[_i]; + if (el.indexOf(prefix) === 0) _results.push(el); + } + return _results; + }; + + process.on('uncaughtException', error); + + if (readline.createInterface.length < 3) { + repl = readline.createInterface(stdin, autocomplete); + stdin.on('data', function(buffer) { + return repl.write(buffer); + }); + } else { + repl = readline.createInterface(stdin, stdout, autocomplete); + } + + repl.on('attemptClose', function() { + if (backlog) { + backlog = ''; + process.stdout.write('\n'); + repl.setPrompt(REPL_PROMPT); + return repl.prompt(); + } else { + return repl.close(); + } + }); + + repl.on('close', function() { + process.stdout.write('\n'); + return stdin.destroy(); + }); + + repl.on('line', run); + + repl.setPrompt(REPL_PROMPT); + + repl.prompt(); + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/rewriter.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/rewriter.js new file mode 100644 index 0000000..b4fdc07 --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/rewriter.js @@ -0,0 +1,301 @@ +(function() { + var BALANCED_PAIRS, EXPRESSION_CLOSE, EXPRESSION_END, EXPRESSION_START, IMPLICIT_BLOCK, IMPLICIT_CALL, IMPLICIT_END, IMPLICIT_FUNC, IMPLICIT_UNSPACED_CALL, INVERSES, LINEBREAKS, SINGLE_CLOSERS, SINGLE_LINERS, left, rite, _i, _len, _ref, + __indexOf = Array.prototype.indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; }, + __slice = Array.prototype.slice; + + exports.Rewriter = (function() { + + function Rewriter() {} + + Rewriter.prototype.rewrite = function(tokens) { + this.tokens = tokens; + this.removeLeadingNewlines(); + this.removeMidExpressionNewlines(); + this.closeOpenCalls(); + this.closeOpenIndexes(); + this.addImplicitIndentation(); + this.tagPostfixConditionals(); + this.addImplicitBraces(); + this.addImplicitParentheses(); + return this.tokens; + }; + + Rewriter.prototype.scanTokens = function(block) { + var i, token, tokens; + tokens = this.tokens; + i = 0; + while (token = tokens[i]) { + i += block.call(this, token, i, tokens); + } + return true; + }; + + Rewriter.prototype.detectEnd = function(i, condition, action) { + var levels, token, tokens, _ref, _ref2; + tokens = this.tokens; + levels = 0; + while (token = tokens[i]) { + if (levels === 0 && condition.call(this, token, i)) { + return action.call(this, token, i); + } + if (!token || levels < 0) return action.call(this, token, i - 1); + if (_ref = token[0], __indexOf.call(EXPRESSION_START, _ref) >= 0) { + levels += 1; + } else if (_ref2 = token[0], __indexOf.call(EXPRESSION_END, _ref2) >= 0) { + levels -= 1; + } + i += 1; + } + return i - 1; + }; + + Rewriter.prototype.removeLeadingNewlines = function() { + var i, tag, _len, _ref; + _ref = this.tokens; + for (i = 0, _len = _ref.length; i < _len; i++) { + tag = _ref[i][0]; + if (tag !== 'TERMINATOR') break; + } + if (i) return this.tokens.splice(0, i); + }; + + Rewriter.prototype.removeMidExpressionNewlines = function() { + return this.scanTokens(function(token, i, tokens) { + var _ref; + if (!(token[0] === 'TERMINATOR' && (_ref = this.tag(i + 1), __indexOf.call(EXPRESSION_CLOSE, _ref) >= 0))) { + return 1; + } + tokens.splice(i, 1); + return 0; + }); + }; + + Rewriter.prototype.closeOpenCalls = function() { + var action, condition; + condition = function(token, i) { + var _ref; + return ((_ref = token[0]) === ')' || _ref === 'CALL_END') || token[0] === 'OUTDENT' && this.tag(i - 1) === ')'; + }; + action = function(token, i) { + return this.tokens[token[0] === 'OUTDENT' ? i - 1 : i][0] = 'CALL_END'; + }; + return this.scanTokens(function(token, i) { + if (token[0] === 'CALL_START') this.detectEnd(i + 1, condition, action); + return 1; + }); + }; + + Rewriter.prototype.closeOpenIndexes = function() { + var action, condition; + condition = function(token, i) { + var _ref; + return (_ref = token[0]) === ']' || _ref === 'INDEX_END'; + }; + action = function(token, i) { + return token[0] = 'INDEX_END'; + }; + return this.scanTokens(function(token, i) { + if (token[0] === 'INDEX_START') this.detectEnd(i + 1, condition, action); + return 1; + }); + }; + + Rewriter.prototype.addImplicitBraces = function() { + var action, condition, sameLine, stack, start, startIndent, startsLine; + stack = []; + start = null; + startsLine = null; + sameLine = true; + startIndent = 0; + condition = function(token, i) { + var one, tag, three, two, _ref, _ref2; + _ref = this.tokens.slice(i + 1, (i + 3) + 1 || 9e9), one = _ref[0], two = _ref[1], three = _ref[2]; + if ('HERECOMMENT' === (one != null ? one[0] : void 0)) return false; + tag = token[0]; + if (__indexOf.call(LINEBREAKS, tag) >= 0) sameLine = false; + return (((tag === 'TERMINATOR' || tag === 'OUTDENT') || (__indexOf.call(IMPLICIT_END, tag) >= 0 && sameLine)) && ((!startsLine && this.tag(i - 1) !== ',') || !((two != null ? two[0] : void 0) === ':' || (one != null ? one[0] : void 0) === '@' && (three != null ? three[0] : void 0) === ':'))) || (tag === ',' && one && ((_ref2 = one[0]) !== 'IDENTIFIER' && _ref2 !== 'NUMBER' && _ref2 !== 'STRING' && _ref2 !== '@' && _ref2 !== 'TERMINATOR' && _ref2 !== 'OUTDENT')); + }; + action = function(token, i) { + var tok; + tok = ['}', '}', token[2]]; + tok.generated = true; + return this.tokens.splice(i, 0, tok); + }; + return this.scanTokens(function(token, i, tokens) { + var ago, idx, prevTag, tag, tok, value, _ref, _ref2; + if (_ref = (tag = token[0]), __indexOf.call(EXPRESSION_START, _ref) >= 0) { + stack.push([(tag === 'INDENT' && this.tag(i - 1) === '{' ? '{' : tag), i]); + return 1; + } + if (__indexOf.call(EXPRESSION_END, tag) >= 0) { + start = stack.pop(); + return 1; + } + if (!(tag === ':' && ((ago = this.tag(i - 2)) === ':' || ((_ref2 = stack[stack.length - 1]) != null ? _ref2[0] : void 0) !== '{'))) { + return 1; + } + sameLine = true; + stack.push(['{']); + idx = ago === '@' ? i - 2 : i - 1; + while (this.tag(idx - 2) === 'HERECOMMENT') { + idx -= 2; + } + prevTag = this.tag(idx - 1); + startsLine = !prevTag || (__indexOf.call(LINEBREAKS, prevTag) >= 0); + value = new String('{'); + value.generated = true; + tok = ['{', value, token[2]]; + tok.generated = true; + tokens.splice(idx, 0, tok); + this.detectEnd(i + 2, condition, action); + return 2; + }); + }; + + Rewriter.prototype.addImplicitParentheses = function() { + var action, condition, noCall, seenControl, seenSingle; + noCall = seenSingle = seenControl = false; + condition = function(token, i) { + var post, tag, _ref, _ref2; + tag = token[0]; + if (!seenSingle && token.fromThen) return true; + if (tag === 'IF' || tag === 'ELSE' || tag === 'CATCH' || tag === '->' || tag === '=>' || tag === 'CLASS') { + seenSingle = true; + } + if (tag === 'IF' || tag === 'ELSE' || tag === 'SWITCH' || tag === 'TRY' || tag === '=') { + seenControl = true; + } + if ((tag === '.' || tag === '?.' || tag === '::') && this.tag(i - 1) === 'OUTDENT') { + return true; + } + return !token.generated && this.tag(i - 1) !== ',' && (__indexOf.call(IMPLICIT_END, tag) >= 0 || (tag === 'INDENT' && !seenControl)) && (tag !== 'INDENT' || (((_ref = this.tag(i - 2)) !== 'CLASS' && _ref !== 'EXTENDS') && (_ref2 = this.tag(i - 1), __indexOf.call(IMPLICIT_BLOCK, _ref2) < 0) && !((post = this.tokens[i + 1]) && post.generated && post[0] === '{'))); + }; + action = function(token, i) { + return this.tokens.splice(i, 0, ['CALL_END', ')', token[2]]); + }; + return this.scanTokens(function(token, i, tokens) { + var callObject, current, next, prev, tag, _ref, _ref2, _ref3; + tag = token[0]; + if (tag === 'CLASS' || tag === 'IF') noCall = true; + _ref = tokens.slice(i - 1, (i + 1) + 1 || 9e9), prev = _ref[0], current = _ref[1], next = _ref[2]; + callObject = !noCall && tag === 'INDENT' && next && next.generated && next[0] === '{' && prev && (_ref2 = prev[0], __indexOf.call(IMPLICIT_FUNC, _ref2) >= 0); + seenSingle = false; + seenControl = false; + if (__indexOf.call(LINEBREAKS, tag) >= 0) noCall = false; + if (prev && !prev.spaced && tag === '?') token.call = true; + if (token.fromThen) return 1; + if (!(callObject || (prev != null ? prev.spaced : void 0) && (prev.call || (_ref3 = prev[0], __indexOf.call(IMPLICIT_FUNC, _ref3) >= 0)) && (__indexOf.call(IMPLICIT_CALL, tag) >= 0 || !(token.spaced || token.newLine) && __indexOf.call(IMPLICIT_UNSPACED_CALL, tag) >= 0))) { + return 1; + } + tokens.splice(i, 0, ['CALL_START', '(', token[2]]); + this.detectEnd(i + 1, condition, action); + if (prev[0] === '?') prev[0] = 'FUNC_EXIST'; + return 2; + }); + }; + + Rewriter.prototype.addImplicitIndentation = function() { + var action, condition, indent, outdent, starter; + starter = indent = outdent = null; + condition = function(token, i) { + var _ref; + return token[1] !== ';' && (_ref = token[0], __indexOf.call(SINGLE_CLOSERS, _ref) >= 0) && !(token[0] === 'ELSE' && (starter !== 'IF' && starter !== 'THEN')); + }; + action = function(token, i) { + return this.tokens.splice((this.tag(i - 1) === ',' ? i - 1 : i), 0, outdent); + }; + return this.scanTokens(function(token, i, tokens) { + var tag, _ref, _ref2; + tag = token[0]; + if (tag === 'TERMINATOR' && this.tag(i + 1) === 'THEN') { + tokens.splice(i, 1); + return 0; + } + if (tag === 'ELSE' && this.tag(i - 1) !== 'OUTDENT') { + tokens.splice.apply(tokens, [i, 0].concat(__slice.call(this.indentation(token)))); + return 2; + } + if (tag === 'CATCH' && ((_ref = this.tag(i + 2)) === 'OUTDENT' || _ref === 'TERMINATOR' || _ref === 'FINALLY')) { + tokens.splice.apply(tokens, [i + 2, 0].concat(__slice.call(this.indentation(token)))); + return 4; + } + if (__indexOf.call(SINGLE_LINERS, tag) >= 0 && this.tag(i + 1) !== 'INDENT' && !(tag === 'ELSE' && this.tag(i + 1) === 'IF')) { + starter = tag; + _ref2 = this.indentation(token), indent = _ref2[0], outdent = _ref2[1]; + if (starter === 'THEN') indent.fromThen = true; + indent.generated = outdent.generated = true; + tokens.splice(i + 1, 0, indent); + this.detectEnd(i + 2, condition, action); + if (tag === 'THEN') tokens.splice(i, 1); + return 1; + } + return 1; + }); + }; + + Rewriter.prototype.tagPostfixConditionals = function() { + var action, condition, original; + original = null; + condition = function(token, i) { + var _ref; + return (_ref = token[0]) === 'TERMINATOR' || _ref === 'INDENT'; + }; + action = function(token, i) { + if (token[0] !== 'INDENT' || (token.generated && !token.fromThen)) { + return original[0] = 'POST_' + original[0]; + } + }; + return this.scanTokens(function(token, i) { + if (token[0] !== 'IF') return 1; + original = token; + this.detectEnd(i + 1, condition, action); + return 1; + }); + }; + + Rewriter.prototype.indentation = function(token) { + return [['INDENT', 2, token[2]], ['OUTDENT', 2, token[2]]]; + }; + + Rewriter.prototype.tag = function(i) { + var _ref; + return (_ref = this.tokens[i]) != null ? _ref[0] : void 0; + }; + + return Rewriter; + + })(); + + BALANCED_PAIRS = [['(', ')'], ['[', ']'], ['{', '}'], ['INDENT', 'OUTDENT'], ['CALL_START', 'CALL_END'], ['PARAM_START', 'PARAM_END'], ['INDEX_START', 'INDEX_END']]; + + exports.INVERSES = INVERSES = {}; + + EXPRESSION_START = []; + + EXPRESSION_END = []; + + for (_i = 0, _len = BALANCED_PAIRS.length; _i < _len; _i++) { + _ref = BALANCED_PAIRS[_i], left = _ref[0], rite = _ref[1]; + EXPRESSION_START.push(INVERSES[rite] = left); + EXPRESSION_END.push(INVERSES[left] = rite); + } + + EXPRESSION_CLOSE = ['CATCH', 'WHEN', 'ELSE', 'FINALLY'].concat(EXPRESSION_END); + + IMPLICIT_FUNC = ['IDENTIFIER', 'SUPER', ')', 'CALL_END', ']', 'INDEX_END', '@', 'THIS']; + + IMPLICIT_CALL = ['IDENTIFIER', 'NUMBER', 'STRING', 'JS', 'REGEX', 'NEW', 'PARAM_START', 'CLASS', 'IF', 'TRY', 'SWITCH', 'THIS', 'BOOL', 'UNARY', 'SUPER', '@', '->', '=>', '[', '(', '{', '--', '++']; + + IMPLICIT_UNSPACED_CALL = ['+', '-']; + + IMPLICIT_BLOCK = ['->', '=>', '{', '[', ',']; + + IMPLICIT_END = ['POST_IF', 'FOR', 'WHILE', 'UNTIL', 'WHEN', 'BY', 'LOOP', 'TERMINATOR']; + + SINGLE_LINERS = ['ELSE', '->', '=>', 'TRY', 'FINALLY', 'THEN']; + + SINGLE_CLOSERS = ['TERMINATOR', 'CATCH', 'FINALLY', 'ELSE', 'OUTDENT', 'LEADING_WHEN']; + + LINEBREAKS = ['TERMINATOR', 'INDENT', 'OUTDENT']; + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/scope.js b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/scope.js new file mode 100644 index 0000000..2162853 --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/lib/coffee-script/scope.js @@ -0,0 +1,124 @@ +(function() { + var Scope, extend, last, _ref; + + _ref = require('./helpers'), extend = _ref.extend, last = _ref.last; + + exports.Scope = Scope = (function() { + + Scope.root = null; + + function Scope(parent, expressions, method) { + this.parent = parent; + this.expressions = expressions; + this.method = method; + this.variables = [ + { + name: 'arguments', + type: 'arguments' + } + ]; + this.positions = {}; + if (!this.parent) Scope.root = this; + } + + Scope.prototype.add = function(name, type, immediate) { + if (this.shared && !immediate) return this.parent.add(name, type, immediate); + if (Object.prototype.hasOwnProperty.call(this.positions, name)) { + return this.variables[this.positions[name]].type = type; + } else { + return this.positions[name] = this.variables.push({ + name: name, + type: type + }) - 1; + } + }; + + Scope.prototype.find = function(name, options) { + if (this.check(name, options)) return true; + this.add(name, 'var'); + return false; + }; + + Scope.prototype.parameter = function(name) { + if (this.shared && this.parent.check(name, true)) return; + return this.add(name, 'param'); + }; + + Scope.prototype.check = function(name, immediate) { + var found, _ref2; + found = !!this.type(name); + if (found || immediate) return found; + return !!((_ref2 = this.parent) != null ? _ref2.check(name) : void 0); + }; + + Scope.prototype.temporary = function(name, index) { + if (name.length > 1) { + return '_' + name + (index > 1 ? index : ''); + } else { + return '_' + (index + parseInt(name, 36)).toString(36).replace(/\d/g, 'a'); + } + }; + + Scope.prototype.type = function(name) { + var v, _i, _len, _ref2; + _ref2 = this.variables; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + v = _ref2[_i]; + if (v.name === name) return v.type; + } + return null; + }; + + Scope.prototype.freeVariable = function(name, reserve) { + var index, temp; + if (reserve == null) reserve = true; + index = 0; + while (this.check((temp = this.temporary(name, index)))) { + index++; + } + if (reserve) this.add(temp, 'var', true); + return temp; + }; + + Scope.prototype.assign = function(name, value) { + this.add(name, { + value: value, + assigned: true + }, true); + return this.hasAssignments = true; + }; + + Scope.prototype.hasDeclarations = function() { + return !!this.declaredVariables().length; + }; + + Scope.prototype.declaredVariables = function() { + var realVars, tempVars, v, _i, _len, _ref2; + realVars = []; + tempVars = []; + _ref2 = this.variables; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + v = _ref2[_i]; + if (v.type === 'var') { + (v.name.charAt(0) === '_' ? tempVars : realVars).push(v.name); + } + } + return realVars.sort().concat(tempVars.sort()); + }; + + Scope.prototype.assignedVariables = function() { + var v, _i, _len, _ref2, _results; + _ref2 = this.variables; + _results = []; + for (_i = 0, _len = _ref2.length; _i < _len; _i++) { + v = _ref2[_i]; + if (v.type.assigned) _results.push("" + v.name + " = " + v.type.value); + } + return _results; + }; + + return Scope; + + })(); + +}).call(this); diff --git a/node_modules/less-brunch/node_modules/coffee-script/package.json b/node_modules/less-brunch/node_modules/coffee-script/package.json new file mode 100644 index 0000000..2547bdf --- /dev/null +++ b/node_modules/less-brunch/node_modules/coffee-script/package.json @@ -0,0 +1,31 @@ +{ + "name": "coffee-script", + "description": "Unfancy JavaScript", + "keywords": ["javascript", "language", "coffeescript", "compiler"], + "author": "Jeremy Ashkenas", + "version": "1.2.0", + "licenses": [{ + "type": "MIT", + "url": "http://github.com/jashkenas/coffee-script/raw/master/LICENSE" + }], + "engines": { + "node": ">=0.4.0" + }, + "directories" : { + "lib" : "./lib/coffee-script" + }, + "main" : "./lib/coffee-script/coffee-script", + "bin": { + "coffee": "./bin/coffee", + "cake": "./bin/cake" + }, + "homepage": "http://coffeescript.org", + "repository": { + "type": "git", + "url": "git://github.com/jashkenas/coffee-script.git" + }, + "devDependencies": { + "uglify-js": ">=1.0.0", + "jison": ">=0.2.0" + } +} diff --git a/node_modules/less-brunch/node_modules/less/CHANGELOG b/node_modules/less-brunch/node_modules/less/CHANGELOG new file mode 100644 index 0000000..9269555 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/CHANGELOG @@ -0,0 +1,26 @@ +1.2.1 + +fix imports on browser +improve error reporting on browser +fix Runtime error reports from imported files +fix 'File not found' import error reporting + +1.2.0 + +- mixin guards +- new function `percentage` +- new `color` function to parse hex color strings +- new type-checking stylesheet functions +- fix Rhino support +- fix bug in string arguments to mixin call +- fix error reporting when index is 0 +- fix browser support in webkit and IE +- fix string interpolation bug when var is empty +- support '!important' after mixin calls +- support vanilla @keyframes directive +- support variables in certain css selectors, like 'nth-child' +- support @media and @import features properly +- improve @import support with media features +- improve error reports from imported files +- improve function call error reporting +- improve error-reporting diff --git a/node_modules/less-brunch/node_modules/less/LICENSE b/node_modules/less-brunch/node_modules/less/LICENSE new file mode 100644 index 0000000..40f3b78 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/LICENSE @@ -0,0 +1,179 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + +9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + +END OF TERMS AND CONDITIONS + +Copyright (c) 2009-2010 Alexis Sellier diff --git a/node_modules/less-brunch/node_modules/less/Makefile b/node_modules/less-brunch/node_modules/less/Makefile new file mode 100644 index 0000000..32d7cc0 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/Makefile @@ -0,0 +1,75 @@ +# +# Run all tests +# +test: + node test/less-test.js + +# +# Run benchmark +# +benchmark: + node benchmark/less-benchmark.js + +# +# Build less.js +# +SRC = lib/less +HEADER = build/header.js +VERSION = `cat package.json | grep version \ + | grep -o '[0-9]\.[0-9]\.[0-9]\+'` +DIST = dist/less-${VERSION}.js +RHINO = dist/less-rhino-${VERSION}.js +DIST_MIN = dist/less-${VERSION}.min.js + +less: + @@mkdir -p dist + @@touch ${DIST} + @@cat ${HEADER} | sed s/@VERSION/${VERSION}/ > ${DIST} + @@echo "(function (window, undefined) {" >> ${DIST} + @@cat build/require.js\ + build/amd.js\ + build/ecma-5.js\ + ${SRC}/parser.js\ + ${SRC}/functions.js\ + ${SRC}/colors.js\ + ${SRC}/tree/*.js\ + ${SRC}/tree.js\ + ${SRC}/browser.js >> ${DIST} + @@echo "})(window);" >> ${DIST} + @@echo ${DIST} built. + +rhino: + @@mkdir -p dist + @@touch ${RHINO} + @@cat build/require-rhino.js\ + build/ecma-5.js\ + ${SRC}/parser.js\ + ${SRC}/functions.js\ + ${SRC}/tree/*.js\ + ${SRC}/tree.js\ + ${SRC}/rhino.js > ${RHINO} + @@echo ${RHINO} built. + +min: less + @@echo minifying... + @@uglifyjs ${DIST} > ${DIST_MIN} + @@echo ${DIST_MIN} built. + +server: less + cp dist/less-${VERSION}.js test/html/ + cd test/html && python -m SimpleHTTPServer + +clean: + git rm dist/* + +dist: clean min + git add dist/* + git commit -a -m "(dist) build ${VERSION}" + git archive master --prefix=less/ -o less-${VERSION}.tar.gz + npm publish less-${VERSION}.tar.gz + +stable: + npm tag less ${VERSION} stable + + +.PHONY: test benchmark diff --git a/node_modules/less-brunch/node_modules/less/README.md b/node_modules/less-brunch/node_modules/less/README.md new file mode 100644 index 0000000..726d691 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/README.md @@ -0,0 +1,20 @@ +less.js +======= + +The **dynamic** stylesheet language. + + + +about +----- + +This is the JavaScript, and now official, stable version of LESS. + +For more information, visit . + +license +------- + +See `LICENSE` file. + +> Copyright (c) 2009-2011 Alexis Sellier diff --git a/node_modules/less-brunch/node_modules/less/benchmark/less-benchmark.js b/node_modules/less-brunch/node_modules/less/benchmark/less-benchmark.js new file mode 100644 index 0000000..68fe1ad --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/benchmark/less-benchmark.js @@ -0,0 +1,47 @@ +var path = require('path'), + fs = require('fs'), + sys = require('util'); + +var less = require('../lib/less'); +var file = path.join(__dirname, 'benchmark.less'); + +if (process.argv[2]) { file = path.join(process.cwd(), process.argv[2]) } + +fs.readFile(file, 'utf8', function (e, data) { + var tree, css, start, end, total; + + sys.puts("Benchmarking...\n", path.basename(file) + " (" + + parseInt(data.length / 1024) + " KB)", ""); + + start = new(Date); + + new(less.Parser)({ optimization: 2 }).parse(data, function (err, tree) { + end = new(Date); + + total = end - start; + + sys.puts("Parsing: " + + total + " ms (" + + parseInt(1000 / total * + data.length / 1024) + " KB\/s)"); + + start = new(Date); + css = tree.toCSS(); + end = new(Date); + + sys.puts("Generation: " + (end - start) + " ms (" + + parseInt(1000 / (end - start) * + data.length / 1024) + " KB\/s)"); + + total += end - start; + + sys.puts("Total: " + total + "ms (" + + parseInt(1000 / total * data.length / 1024) + " KB/s)"); + + if (err) { + less.writeError(err); + process.exit(3); + } + }); +}); + diff --git a/node_modules/less-brunch/node_modules/less/bin/lessc b/node_modules/less-brunch/node_modules/less/bin/lessc new file mode 100755 index 0000000..30ae352 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/bin/lessc @@ -0,0 +1,139 @@ +#!/usr/bin/env node + +var path = require('path'), + fs = require('fs'), + sys = require('util'), + os = require('os'); + +var less = require('../lib/less'); +var args = process.argv.slice(1); +var options = { + compress: false, + yuicompress: false, + optimization: 1, + silent: false, + paths: [], + color: true, + strictImports: false +}; + +args = args.filter(function (arg) { + var match; + + if (match = arg.match(/^-I(.+)$/)) { + options.paths.push(match[1]); + return false; + } + + if (match = arg.match(/^--?([a-z][0-9a-z-]*)(?:=([^\s]+))?$/i)) { arg = match[1] } + else { return arg } + + switch (arg) { + case 'v': + case 'version': + sys.puts("lessc " + less.version.join('.') + " (LESS Compiler) [JavaScript]"); + process.exit(0); + case 'verbose': + options.verbose = true; + break; + case 's': + case 'silent': + options.silent = true; + break; + case 'strict-imports': + options.strictImports = true; + break; + case 'h': + case 'help': + sys.puts("usage: lessc source [destination]"); + process.exit(0); + case 'x': + case 'compress': + options.compress = true; + break; + case 'yui-compress': + options.yuicompress = true; + break; + case 'no-color': + options.color = false; + break; + case 'include-path': + options.paths = match[2].split(os.type().match(/Windows/) ? ';' : ':') + .map(function(p) { + if (p) { + return path.resolve(process.cwd(), p); + } + }); + break; + case 'O0': options.optimization = 0; break; + case 'O1': options.optimization = 1; break; + case 'O2': options.optimization = 2; break; + } +}); + +var input = args[1]; +if (input && input != '-') { + input = path.resolve(process.cwd(), input); +} +var output = args[2]; +if (output) { + output = path.resolve(process.cwd(), output); +} + +var css, fd, tree; + +if (! input) { + sys.puts("lessc: no input files"); + process.exit(1); +} + +var parseLessFile = function (e, data) { + if (e) { + sys.puts("lessc: " + e.message); + process.exit(1); + } + + new(less.Parser)({ + paths: [path.dirname(input)].concat(options.paths), + optimization: options.optimization, + filename: input, + strictImports: options.strictImports + }).parse(data, function (err, tree) { + if (err) { + less.writeError(err, options); + process.exit(1); + } else { + try { + css = tree.toCSS({ + compress: options.compress, + yuicompress: options.yuicompress + }); + if (output) { + fd = fs.openSync(output, "w"); + fs.writeSync(fd, css, 0, "utf8"); + } else { + sys.print(css); + } + } catch (e) { + less.writeError(e, options); + process.exit(2); + } + } + }); +}; + +if (input != '-') { + fs.readFile(input, 'utf-8', parseLessFile); +} else { + process.stdin.resume(); + process.stdin.setEncoding('utf8'); + + var buffer = ''; + process.stdin.on('data', function(data) { + buffer += data; + }); + + process.stdin.on('end', function() { + parseLessFile(false, buffer); + }); +} diff --git a/node_modules/less-brunch/node_modules/less/dist/less-1.1.0.js b/node_modules/less-brunch/node_modules/less/dist/less-1.1.0.js new file mode 100644 index 0000000..487c06a --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/dist/less-1.1.0.js @@ -0,0 +1,2695 @@ +// +// LESS - Leaner CSS v1.1.0 +// http://lesscss.org +// +// Copyright (c) 2009-2011, Alexis Sellier +// Licensed under the Apache 2.0 License. +// +(function (window, undefined) { +// +// Stub out `require` in the browser +// +function require(arg) { + return window.less[arg.split('/')[1]]; +}; + + +// ecma-5.js +// +// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License +// -- tlrobinson Tom Robinson +// dantman Daniel Friesen + +// +// Array +// +if (!Array.isArray) { + Array.isArray = function(obj) { + return Object.prototype.toString.call(obj) === "[object Array]" || + (obj instanceof Array); + }; +} +if (!Array.prototype.forEach) { + Array.prototype.forEach = function(block, thisObject) { + var len = this.length >>> 0; + for (var i = 0; i < len; i++) { + if (i in this) { + block.call(thisObject, this[i], i, this); + } + } + }; +} +if (!Array.prototype.map) { + Array.prototype.map = function(fun /*, thisp*/) { + var len = this.length >>> 0; + var res = new Array(len); + var thisp = arguments[1]; + + for (var i = 0; i < len; i++) { + if (i in this) { + res[i] = fun.call(thisp, this[i], i, this); + } + } + return res; + }; +} +if (!Array.prototype.filter) { + Array.prototype.filter = function (block /*, thisp */) { + var values = []; + var thisp = arguments[1]; + for (var i = 0; i < this.length; i++) { + if (block.call(thisp, this[i])) { + values.push(this[i]); + } + } + return values; + }; +} +if (!Array.prototype.reduce) { + Array.prototype.reduce = function(fun /*, initial*/) { + var len = this.length >>> 0; + var i = 0; + + // no value to return if no initial value and an empty array + if (len === 0 && arguments.length === 1) throw new TypeError(); + + if (arguments.length >= 2) { + var rv = arguments[1]; + } else { + do { + if (i in this) { + rv = this[i++]; + break; + } + // if array contains no values, no initial value to return + if (++i >= len) throw new TypeError(); + } while (true); + } + for (; i < len; i++) { + if (i in this) { + rv = fun.call(null, rv, this[i], i, this); + } + } + return rv; + }; +} +if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (value /*, fromIndex */ ) { + var length = this.length; + var i = arguments[1] || 0; + + if (!length) return -1; + if (i >= length) return -1; + if (i < 0) i += length; + + for (; i < length; i++) { + if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } + if (value === this[i]) return i; + } + return -1; + }; +} + +// +// Object +// +if (!Object.keys) { + Object.keys = function (object) { + var keys = []; + for (var name in object) { + if (Object.prototype.hasOwnProperty.call(object, name)) { + keys.push(name); + } + } + return keys; + }; +} + +// +// String +// +if (!String.prototype.trim) { + String.prototype.trim = function () { + return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); + }; +} +var less, tree; + +if (typeof(window) === 'undefined') { + less = exports, + tree = require('less/tree'); +} else { + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + mime: env && env.mime, // MIME type of .less files + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (root) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + + callback(root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + chunks = []; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + level = 0, + match, + chunk = chunks[0], + inParam, + inString; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = i; + + if (!inString && !inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + if (c === '{' && !inString && !inParam) { level ++; + chunk.push(c); + } else if (c === '}' && !inString && !inParam) { level --; + chunk.push(c); + chunks[++j] = chunk = []; + } else if (c === '(' && !inString && !inParam) { + chunk.push(c); + inParam = true; + } else if (c === ')' && !inString && inParam) { + chunk.push(c); + inParam = false; + } else { + if (c === '"' || c === "'" || c === '`') { + if (! inString) { + inString = c; + } else { + inString = inString === c ? false : inString; + } + } + chunk.push(c); + } + } + if (level > 0) { + throw { + type: 'Syntax', + message: "Missing closing `}`", + filename: env.filename + }; + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = []; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + lines = input.split('\n'); + line = getLine(e.index); + + for (var n = e.index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + throw { + type: e.type, + message: e.message, + filename: env.filename, + index: e.index, + line: typeof(line) === 'number' ? line + 1 : null, + callLine: e.call && (getLine(e.call) + 1), + callExtract: lines[getLine(e.call)], + stack: e.stack, + column: column, + extract: [ + lines[line - 1], + lines[line], + lines[line + 1] + ] + }; + } + if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + + function getLine(index) { + return index ? (input.slice(0, index).match(/\n/g) || "").length : null; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + name: "ParseError", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args; + + if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + if (! $(')')) throw new(Error)("missing closing ) for url()"); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i); + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args, index); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value; + + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + while (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + if (value = $(this.expression)) { + params.push({ name: param.name, value: value }); + } else { + throw new(Error)("Expected value"); + } + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + if (! $(',')) { break } + } + if (! $(')')) throw new(Error)("Expected )"); + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + if (! $(')')) throw new(Error)("missing closing ) for alpha()"); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c; + + c = $(this.combinator); + e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); + + if (e) { return new(tree.Element)(c, e) } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '&' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === ':' && input.charAt(i + 1) === ':') { + i += 2; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)('::'); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { + i += match[0].length - 1; + selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; + } else { + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url)) && + $(';')) { + return new(tree.Import)(path, imports); + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import'])) { + return value; + } else if (name = $(/^@media|@page|@-[-a-z]+/)) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (typeof(window) !== 'undefined') { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (path.charAt(0) !== '/' && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); + }; +} + +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math.round(number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math.round(n); + } else { + throw { + error: "RuntimeError", + message: "math functions take numbers as parameters" + }; + } + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('less/tree')); +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args) { + this.name = name; + this.args = args; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + return tree.functions[this.name].apply(tree.functions, args); + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('less/tree')); +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else if (rgb.length == 8) { + this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; + this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + } +}; + + +})(require('less/tree')); +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Directive = function (name, value) { + this.name = name; + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + if (this.ruleset) { + this.ruleset.root = true; + return this.name + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Element = function (combinator, value) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + this.value = value.trim(); +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + this.value; +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + ':' : ' :', + '::': '::', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('less/tree')); +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else { + return this.value[0].eval(env); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(' '); + } +}; + +})(require('less/tree')); +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports) { + var that = this; + + this._path = path; + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (root) { + if (! root) { + throw new(Error)("Error parsing " + that.path); + } + that.root = root; + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function () { + if (this.css) { + return "@import " + this._path.toCSS() + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset; + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return ruleset.rules; + } + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + toCSS: function () { + if (this.escaped) { + return this.evaluated; + } else { + return JSON.stringify(this.evaluated); + } + }, + eval: function (env) { + var result, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return new(tree.Variable)('@' + name).eval(env).value; + }); + + expression = new(Function)('return (' + expression + ')'); + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + this.evaluated = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + return this; + } +}; + +})(require('less/tree')); + +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value } +}; + +})(require('less/tree')); +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(this.arguments, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments).rules); + match = true; + } catch (e) { + throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; + } + } + } + if (match) { + return rules; + } else { + throw { message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index }; + } + } + } + throw { message: this.selector.toCSS().trim() + " is undefined", + index: this.index }; + } +}; + +tree.mixin.Definition = function (name, params, rules) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + eval: function (env, args) { + var frame = new(tree.Ruleset)(null, []), context, _arguments = []; + + for (var i = 0, val; i < this.params.length; i++) { + if (this.params[i].name) { + if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); + } else { + throw { message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments))); + + return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len; + + if (argsLength < this.required) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + this.value = this.value.replace(/@\{([\w-]+)\}/g, function (_, name) { + return new(tree.Variable)('@' + name).eval(env).value; + }).replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, this.index, true).eval(env).toCSS(); + }); + return this; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Rule = function (name, value, important, index) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + ";"; + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Ruleset = function (selectors, rules) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); + + ruleset.root = this.root; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > 1) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + for (var s = 0; s < this.selectors.length; s++) { + for (var c = 0; c < context.length; c++) { + paths.push(context[c].concat([this.selectors[s]])); + } + } + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + } +}; +})(require('less/tree')); +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + if (this.elements[0].value === other.elements[0].value) { + return true; + } else { + return false; + } +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('less/tree')); +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Variable = function (name, index) { this.name = name, this.index = index }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { message: "variable " + name + " is undefined", + index: this.index }; + } + } +}; + +})(require('less/tree')); +require('less/tree').find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +// +// browser.js - client-side engine +// + +var isFileProtocol = (location.protocol === 'file:' || + location.protocol === 'chrome:' || + location.protocol === 'chrome-extension:' || + location.protocol === 'resource:'); + +less.env = less.env || (location.hostname == '127.0.0.1' || + location.hostname == '0.0.0.0' || + location.hostname == 'localhost' || + location.port.length > 0 || + isFileProtocol ? 'development' + : 'production'); + +// Load styles asynchronously (default: false) +// +// This is set to `false` by default, so that the body +// doesn't start loading before the stylesheets are parsed. +// Setting this to `true` can result in flickering. +// +less.async = false; + +// Interval between watch polls +less.poll = less.poll || (isFileProtocol ? 1000 : 1500); + +// +// Watch mode +// +less.watch = function () { return this.watchMode = true }; +less.unwatch = function () { return this.watchMode = false }; + +if (less.env === 'development') { + less.optimization = 0; + + if (/!watch/.test(location.hash)) { + less.watch(); + } + less.watchTimer = setInterval(function () { + if (less.watchMode) { + loadStyleSheets(function (root, sheet, env) { + if (root) { + createCSS(root.toCSS(), sheet, env.lastModified); + } + }); + } + }, less.poll); +} else { + less.optimization = 3; +} + +var cache; + +try { + cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; +} catch (_) { + cache = null; +} + +// +// Get all tags with the 'rel' attribute set to "stylesheet/less" +// +var links = document.getElementsByTagName('link'); +var typePattern = /^text\/(x-)?less$/; + +less.sheets = []; + +for (var i = 0; i < links.length; i++) { + if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && + (links[i].type.match(typePattern)))) { + less.sheets.push(links[i]); + } +} + + +less.refresh = function (reload) { + var startTime, endTime; + startTime = endTime = new(Date); + + loadStyleSheets(function (root, sheet, env) { + if (env.local) { + log("loading " + sheet.href + " from cache."); + } else { + log("parsed " + sheet.href + " successfully."); + createCSS(root.toCSS(), sheet, env.lastModified); + } + log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); + (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); + endTime = new(Date); + }, reload); + + loadStyles(); +}; +less.refreshStyles = loadStyles; + +less.refresh(less.env === 'development'); + +function loadStyles() { + var styles = document.getElementsByTagName('style'); + for (var i = 0; i < styles.length; i++) { + if (styles[i].type.match(typePattern)) { + new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { + styles[i].type = 'text/css'; + styles[i].innerHTML = tree.toCSS(); + }); + } + } +} + +function loadStyleSheets(callback, reload) { + for (var i = 0; i < less.sheets.length; i++) { + loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); + } +} + +function loadStyleSheet(sheet, callback, reload, remaining) { + var url = window.location.href.replace(/[#?].*$/, ''); + var href = sheet.href.replace(/\?.*$/, ''); + var css = cache && cache.getItem(href); + var timestamp = cache && cache.getItem(href + ':timestamp'); + var styles = { css: css, timestamp: timestamp }; + + // Stylesheets in IE don't always return the full path + if (! /^(https?|file):/.test(href)) { + if (href.charAt(0) == "/") { + href = window.location.protocol + "//" + window.location.host + href; + } else { + href = url.slice(0, url.lastIndexOf('/') + 1) + href; + } + } + + xhr(sheet.href, sheet.type, function (data, lastModified) { + if (!reload && styles && lastModified && + (new(Date)(lastModified).valueOf() === + new(Date)(styles.timestamp).valueOf())) { + // Use local copy + createCSS(styles.css, sheet); + callback(null, sheet, { local: true, remaining: remaining }); + } else { + // Use remote copy (re-parse) + try { + new(less.Parser)({ + optimization: less.optimization, + paths: [href.replace(/[\w\.-]+$/, '')], + mime: sheet.type + }).parse(data, function (e, root) { + if (e) { return error(e, href) } + try { + callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); + removeNode(document.getElementById('less-error-message:' + extractId(href))); + } catch (e) { + error(e, href); + } + }); + } catch (e) { + error(e, href); + } + } + }, function (status, url) { + throw new(Error)("Couldn't load " + url + " (" + status + ")"); + }); +} + +function extractId(href) { + return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain + .replace(/^\//, '' ) // Remove root / + .replace(/\?.*$/, '' ) // Remove query + .replace(/\.[^\.\/]+$/, '' ) // Remove file extension + .replace(/[^\.\w-]+/g, '-') // Replace illegal characters + .replace(/\./g, ':'); // Replace dots with colons(for valid id) +} + +function createCSS(styles, sheet, lastModified) { + var css; + + // Strip the query-string + var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; + + // If there is no title set, use the filename, minus the extension + var id = 'less:' + (sheet.title || extractId(href)); + + // If the stylesheet doesn't exist, create a new node + if ((css = document.getElementById(id)) === null) { + css = document.createElement('style'); + css.type = 'text/css'; + css.media = sheet.media || 'screen'; + css.id = id; + document.getElementsByTagName('head')[0].appendChild(css); + } + + if (css.styleSheet) { // IE + try { + css.styleSheet.cssText = styles; + } catch (e) { + throw new(Error)("Couldn't reassign styleSheet.cssText."); + } + } else { + (function (node) { + if (css.childNodes.length > 0) { + if (css.firstChild.nodeValue !== node.nodeValue) { + css.replaceChild(node, css.firstChild); + } + } else { + css.appendChild(node); + } + })(document.createTextNode(styles)); + } + + // Don't update the local store if the file wasn't modified + if (lastModified && cache) { + log('saving ' + href + ' to cache.'); + cache.setItem(href, styles); + cache.setItem(href + ':timestamp', lastModified); + } +} + +function xhr(url, type, callback, errback) { + var xhr = getXMLHttpRequest(); + var async = isFileProtocol ? false : less.async; + + if (typeof(xhr.overrideMimeType) === 'function') { + xhr.overrideMimeType('text/css'); + } + xhr.open('GET', url, async); + xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); + xhr.send(null); + + if (isFileProtocol) { + if (xhr.status === 0) { + callback(xhr.responseText); + } else { + errback(xhr.status, url); + } + } else if (async) { + xhr.onreadystatechange = function () { + if (xhr.readyState == 4) { + handleResponse(xhr, callback, errback); + } + }; + } else { + handleResponse(xhr, callback, errback); + } + + function handleResponse(xhr, callback, errback) { + if (xhr.status >= 200 && xhr.status < 300) { + callback(xhr.responseText, + xhr.getResponseHeader("Last-Modified")); + } else if (typeof(errback) === 'function') { + errback(xhr.status, url); + } + } +} + +function getXMLHttpRequest() { + if (window.XMLHttpRequest) { + return new(XMLHttpRequest); + } else { + try { + return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); + } catch (e) { + log("browser doesn't support AJAX."); + return null; + } + } +} + +function removeNode(node) { + return node && node.parentNode.removeChild(node); +} + +function log(str) { + if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } +} + +function error(e, href) { + var id = 'less-error-message:' + extractId(href); + + var template = ['
    ', + '
  • {0}
    • ', + '
  • {current}
    • ', + '
  • {2}
    • ', + '
'].join('\n'); + + var elem = document.createElement('div'), timer, content; + + elem.id = id; + elem.className = "less-error-message"; + + content = '

' + (e.message || 'There is an error in your .less file') + + '

' + '

' + href + " "; + + if (e.extract) { + content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

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a.Anonymous(encodeURI(b.value).replace(/=/g,"%3D").replace(/:/g,"%3A").replace(/#/g,"%23").replace(/;/g,"%3B").replace(/\(/g,"%28").replace(/\)/g,"%29"))},"%":function(b){var c=Array.prototype.slice.call(arguments,1),d=b.value;for(var e=0;e255?255:a<0?0:a).toString(16);return a.length===1?"0"+a:a}).join("")},operate:function(b,c){var d=[];c instanceof a.Color||(c=c.toColor());for(var e=0;e<3;e++)d[e]=a.operate(b,this.rgb[e],c.rgb[e]);return new a.Color(d,this.alpha+c.alpha)},toHSL:function(){var a=this.rgb[0]/255,b=this.rgb[1]/255,c=this.rgb[2]/255,d=this.alpha,e=Math.max(a,b,c),f=Math.min(a,b,c),g,h,i=(e+f)/2,j=e-f;if(e===f)g=h=0;else{h=i>.5?j/(2-e-f):j/(e+f);switch(e){case a:g=(b-c)/j+(b":a.compress?">":" > "}[this.value]}}(c("less/tree")),function(a){a.Expression=function(a){this.value=a},a.Expression.prototype={eval:function(b){return this.value.length>1?new a.Expression(this.value.map(function(a){return a.eval(b)})):this.value[0].eval(b)},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(" ")}}}(c("less/tree")),function(a){a.Import=function(b,c){var d=this;this._path=b,b instanceof a.Quoted?this.path=/\.(le?|c)ss$/.test(b.value)?b.value:b.value+".less":this.path=b.value.value||b.value,this.css=/css$/.test(this.path),this.css||c.push(this.path,function(a){if(!a)throw new Error("Error parsing "+d.path);d.root=a})},a.Import.prototype={toCSS:function(){return this.css?"@import "+this._path.toCSS()+";\n":""},eval:function(b){var c;if(this.css)return this;c=new a.Ruleset(null,this.root.rules.slice(0));for(var d=0;d0){for(var f=0;f0&&c>this.params.length)return!1;d=Math.min(c,this.arity);for(var e=0;e1?Array.prototype.push.apply(d,e.find(new a.Selector(b.elements.slice(1)),c)):d.push(e);break}});return this._lookups[g]=d},toCSS:function(b,c){var d=[],e=[],f=[],g=[],h,i;if(!this.root)if(b.length===0)g=this.selectors.map(function(a){return[a]});else for(var j=0;j0&&(h=g.map(function(a){return a.map(function(a){return 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"+b.trim():b.toCSS(a)}).join("")}}(c("less/tree")),function(b){b.URL=function(b,c){b.data?this.attrs=b:(!/^(?:https?:\/|file:\/|data:\/)?\//.test(b.value)&&c.length>0&&typeof a!="undefined"&&(b.value=c[0]+(b.value.charAt(0)==="/"?b.value.slice(1):b.value)),this.value=b,this.paths=c)},b.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(a){return this.attrs?this:new b.URL(this.value.eval(a),this.paths)}}}(c("less/tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("less/tree")),function(a){a.Variable=function(a,b){this.name=a,this.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("less/tree")),c("less/tree").find=function(a,b){for(var c=0,d;c0||g?"development":"production"),d.async=!1,d.poll=d.poll||(g?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&n(function(a,b,c){a&&q(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var h;try{h=typeof a.localStorage=="undefined"?null:a.localStorage}catch(i){h=null}var j=document.getElementsByTagName("link"),k=/^text\/(x-)?less$/;d.sheets=[];for(var l=0;l>> 0; + for (var i = 0; i < len; i++) { + if (i in this) { + block.call(thisObject, this[i], i, this); + } + } + }; +} +if (!Array.prototype.map) { + Array.prototype.map = function(fun /*, thisp*/) { + var len = this.length >>> 0; + var res = new Array(len); + var thisp = arguments[1]; + + for (var i = 0; i < len; i++) { + if (i in this) { + res[i] = fun.call(thisp, this[i], i, this); + } + } + return res; + }; +} +if (!Array.prototype.filter) { + Array.prototype.filter = function (block /*, thisp */) { + var values = []; + var thisp = arguments[1]; + for (var i = 0; i < this.length; i++) { + if (block.call(thisp, this[i])) { + values.push(this[i]); + } + } + return values; + }; +} +if (!Array.prototype.reduce) { + Array.prototype.reduce = function(fun /*, initial*/) { + var len = this.length >>> 0; + var i = 0; + + // no value to return if no initial value and an empty array + if (len === 0 && arguments.length === 1) throw new TypeError(); + + if (arguments.length >= 2) { + var rv = arguments[1]; + } else { + do { + if (i in this) { + rv = this[i++]; + break; + } + // if array contains no values, no initial value to return + if (++i >= len) throw new TypeError(); + } while (true); + } + for (; i < len; i++) { + if (i in this) { + rv = fun.call(null, rv, this[i], i, this); + } + } + return rv; + }; +} +if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (value /*, fromIndex */ ) { + var length = this.length; + var i = arguments[1] || 0; + + if (!length) return -1; + if (i >= length) return -1; + if (i < 0) i += length; + + for (; i < length; i++) { + if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } + if (value === this[i]) return i; + } + return -1; + }; +} + +// +// Object +// +if (!Object.keys) { + Object.keys = function (object) { + var keys = []; + for (var name in object) { + if (Object.prototype.hasOwnProperty.call(object, name)) { + keys.push(name); + } + } + return keys; + }; +} + +// +// String +// +if (!String.prototype.trim) { + String.prototype.trim = function () { + return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); + }; +} +var less, tree; + +if (typeof(window) === 'undefined') { + less = exports, + tree = require('less/tree'); +} else { + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + mime: env && env.mime, // MIME type of .less files + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (root) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + + callback(root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + chunks = []; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + level = 0, + match, + chunk = chunks[0], + inParam, + inString; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = i; + + if (!inString && !inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + if (c === '{' && !inString && !inParam) { level ++; + chunk.push(c); + } else if (c === '}' && !inString && !inParam) { level --; + chunk.push(c); + chunks[++j] = chunk = []; + } else if (c === '(' && !inString && !inParam) { + chunk.push(c); + inParam = true; + } else if (c === ')' && !inString && inParam) { + chunk.push(c); + inParam = false; + } else { + if (c === '"' || c === "'" || c === '`') { + if (! inString) { + inString = c; + } else { + inString = inString === c ? false : inString; + } + } + chunk.push(c); + } + } + if (level > 0) { + throw { + type: 'Syntax', + message: "Missing closing `}`", + filename: env.filename + }; + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = []; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + lines = input.split('\n'); + line = getLine(e.index); + + for (var n = e.index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + throw { + type: e.type, + message: e.message, + filename: env.filename, + index: e.index, + line: typeof(line) === 'number' ? line + 1 : null, + callLine: e.call && (getLine(e.call) + 1), + callExtract: lines[getLine(e.call)], + stack: e.stack, + column: column, + extract: [ + lines[line - 1], + lines[line], + lines[line + 1] + ] + }; + } + if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + + function getLine(index) { + return index ? (input.slice(0, index).match(/\n/g) || "").length : null; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + name: "ParseError", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args; + + if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + if (! $(')')) throw new(Error)("missing closing ) for url()"); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i); + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args, index); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value; + + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + while (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + if (value = $(this.expression)) { + params.push({ name: param.name, value: value }); + } else { + throw new(Error)("Expected value"); + } + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + if (! $(',')) { break } + } + if (! $(')')) throw new(Error)("Expected )"); + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + if (! $(')')) throw new(Error)("missing closing ) for alpha()"); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c; + + c = $(this.combinator); + e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); + + if (e) { return new(tree.Element)(c, e) } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '&' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === ':' && input.charAt(i + 1) === ':') { + i += 2; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)('::'); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { + i += match[0].length - 1; + selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; + } else { + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url)) && + $(';')) { + return new(tree.Import)(path, imports); + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import'])) { + return value; + } else if (name = $(/^@media|@page|@-[-a-z]+/)) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (typeof(window) !== 'undefined') { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (path.charAt(0) !== '/' && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); + }; +} + +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math.round(number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math.round(n); + } else { + throw { + error: "RuntimeError", + message: "math functions take numbers as parameters" + }; + } + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('less/tree')); +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args) { + this.name = name; + this.args = args; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + return tree.functions[this.name].apply(tree.functions, args); + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('less/tree')); +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else if (rgb.length == 8) { + this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; + this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + } +}; + + +})(require('less/tree')); +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Directive = function (name, value) { + this.name = name; + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + if (this.ruleset) { + this.ruleset.root = true; + return this.name + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Element = function (combinator, value) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + this.value = value.trim(); +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + this.value; +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + ':' : ' :', + '::': '::', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('less/tree')); +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return this; + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(' '); + } +}; + +})(require('less/tree')); +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports) { + var that = this; + + this._path = path; + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (root) { + if (! root) { + throw new(Error)("Error parsing " + that.path); + } + that.root = root; + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function () { + if (this.css) { + return "@import " + this._path.toCSS() + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset; + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return ruleset.rules; + } + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + eval: function (env) { + var result, + that = this, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); + }); + + try { + expression = new(Function)('return (' + expression + ')'); + } catch (e) { + throw { message: "JavaScript evaluation error: `" + expression + "`" , + index: this.index }; + } + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + result = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + if (typeof(result) === 'string') { + return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); + } else if (Array.isArray(result)) { + return new(tree.Anonymous)(result.join(', ')); + } else { + return new(tree.Anonymous)(result); + } + } +}; + +})(require('less/tree')); + +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value } +}; + +})(require('less/tree')); +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(this.arguments, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments).rules); + match = true; + } catch (e) { + throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; + } + } + } + if (match) { + return rules; + } else { + throw { message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index }; + } + } + } + throw { message: this.selector.toCSS().trim() + " is undefined", + index: this.index }; + } +}; + +tree.mixin.Definition = function (name, params, rules) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + eval: function (env, args) { + var frame = new(tree.Ruleset)(null, []), context, _arguments = []; + + for (var i = 0, val; i < this.params.length; i++) { + if (this.params[i].name) { + if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); + } else { + throw { message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); + + return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len; + + if (argsLength < this.required) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + var that = this; + this.value = this.value.replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, that.index, true).eval(env).value; + }).replace(/@\{([\w-]+)\}/g, function (_, name) { + return new(tree.Variable)('@' + name, that.index).eval(env).value; + }); + return this; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Rule = function (name, value, important, index) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + ";"; + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Ruleset = function (selectors, rules) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); + + ruleset.root = this.root; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > 1) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + for (var s = 0; s < this.selectors.length; s++) { + for (var c = 0; c < context.length; c++) { + paths.push(context[c].concat([this.selectors[s]])); + } + } + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + } +}; +})(require('less/tree')); +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + if (this.elements[0].value === other.elements[0].value) { + return true; + } else { + return false; + } +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('less/tree')); +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Variable = function (name, index) { this.name = name, this.index = index }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { message: "variable " + name + " is undefined", + index: this.index }; + } + } +}; + +})(require('less/tree')); +require('less/tree').find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +require('less/tree').jsify = function (obj) { + if (Array.isArray(obj.value) && (obj.value.length > 1)) { + return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; + } else { + return obj.toCSS(false); + } +}; +// +// browser.js - client-side engine +// + +var isFileProtocol = (location.protocol === 'file:' || + location.protocol === 'chrome:' || + location.protocol === 'chrome-extension:' || + location.protocol === 'resource:'); + +less.env = less.env || (location.hostname == '127.0.0.1' || + location.hostname == '0.0.0.0' || + location.hostname == 'localhost' || + location.port.length > 0 || + isFileProtocol ? 'development' + : 'production'); + +// Load styles asynchronously (default: false) +// +// This is set to `false` by default, so that the body +// doesn't start loading before the stylesheets are parsed. +// Setting this to `true` can result in flickering. +// +less.async = false; + +// Interval between watch polls +less.poll = less.poll || (isFileProtocol ? 1000 : 1500); + +// +// Watch mode +// +less.watch = function () { return this.watchMode = true }; +less.unwatch = function () { return this.watchMode = false }; + +if (less.env === 'development') { + less.optimization = 0; + + if (/!watch/.test(location.hash)) { + less.watch(); + } + less.watchTimer = setInterval(function () { + if (less.watchMode) { + loadStyleSheets(function (root, sheet, env) { + if (root) { + createCSS(root.toCSS(), sheet, env.lastModified); + } + }); + } + }, less.poll); +} else { + less.optimization = 3; +} + +var cache; + +try { + cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; +} catch (_) { + cache = null; +} + +// +// Get all tags with the 'rel' attribute set to "stylesheet/less" +// +var links = document.getElementsByTagName('link'); +var typePattern = /^text\/(x-)?less$/; + +less.sheets = []; + +for (var i = 0; i < links.length; i++) { + if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && + (links[i].type.match(typePattern)))) { + less.sheets.push(links[i]); + } +} + + +less.refresh = function (reload) { + var startTime, endTime; + startTime = endTime = new(Date); + + loadStyleSheets(function (root, sheet, env) { + if (env.local) { + log("loading " + sheet.href + " from cache."); + } else { + log("parsed " + sheet.href + " successfully."); + createCSS(root.toCSS(), sheet, env.lastModified); + } + log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); + (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); + endTime = new(Date); + }, reload); + + loadStyles(); +}; +less.refreshStyles = loadStyles; + +less.refresh(less.env === 'development'); + +function loadStyles() { + var styles = document.getElementsByTagName('style'); + for (var i = 0; i < styles.length; i++) { + if (styles[i].type.match(typePattern)) { + new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { + styles[i].type = 'text/css'; + styles[i].innerHTML = tree.toCSS(); + }); + } + } +} + +function loadStyleSheets(callback, reload) { + for (var i = 0; i < less.sheets.length; i++) { + loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); + } +} + +function loadStyleSheet(sheet, callback, reload, remaining) { + var url = window.location.href.replace(/[#?].*$/, ''); + var href = sheet.href.replace(/\?.*$/, ''); + var css = cache && cache.getItem(href); + var timestamp = cache && cache.getItem(href + ':timestamp'); + var styles = { css: css, timestamp: timestamp }; + + // Stylesheets in IE don't always return the full path + if (! /^(https?|file):/.test(href)) { + if (href.charAt(0) == "/") { + href = window.location.protocol + "//" + window.location.host + href; + } else { + href = url.slice(0, url.lastIndexOf('/') + 1) + href; + } + } + + xhr(sheet.href, sheet.type, function (data, lastModified) { + if (!reload && styles && lastModified && + (new(Date)(lastModified).valueOf() === + new(Date)(styles.timestamp).valueOf())) { + // Use local copy + createCSS(styles.css, sheet); + callback(null, sheet, { local: true, remaining: remaining }); + } else { + // Use remote copy (re-parse) + try { + new(less.Parser)({ + optimization: less.optimization, + paths: [href.replace(/[\w\.-]+$/, '')], + mime: sheet.type + }).parse(data, function (e, root) { + if (e) { return error(e, href) } + try { + callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); + removeNode(document.getElementById('less-error-message:' + extractId(href))); + } catch (e) { + error(e, href); + } + }); + } catch (e) { + error(e, href); + } + } + }, function (status, url) { + throw new(Error)("Couldn't load " + url + " (" + status + ")"); + }); +} + +function extractId(href) { + return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain + .replace(/^\//, '' ) // Remove root / + .replace(/\?.*$/, '' ) // Remove query + .replace(/\.[^\.\/]+$/, '' ) // Remove file extension + .replace(/[^\.\w-]+/g, '-') // Replace illegal characters + .replace(/\./g, ':'); // Replace dots with colons(for valid id) +} + +function createCSS(styles, sheet, lastModified) { + var css; + + // Strip the query-string + var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; + + // If there is no title set, use the filename, minus the extension + var id = 'less:' + (sheet.title || extractId(href)); + + // If the stylesheet doesn't exist, create a new node + if ((css = document.getElementById(id)) === null) { + css = document.createElement('style'); + css.type = 'text/css'; + css.media = sheet.media || 'screen'; + css.id = id; + document.getElementsByTagName('head')[0].appendChild(css); + } + + if (css.styleSheet) { // IE + try { + css.styleSheet.cssText = styles; + } catch (e) { + throw new(Error)("Couldn't reassign styleSheet.cssText."); + } + } else { + (function (node) { + if (css.childNodes.length > 0) { + if (css.firstChild.nodeValue !== node.nodeValue) { + css.replaceChild(node, css.firstChild); + } + } else { + css.appendChild(node); + } + })(document.createTextNode(styles)); + } + + // Don't update the local store if the file wasn't modified + if (lastModified && cache) { + log('saving ' + href + ' to cache.'); + cache.setItem(href, styles); + cache.setItem(href + ':timestamp', lastModified); + } +} + +function xhr(url, type, callback, errback) { + var xhr = getXMLHttpRequest(); + var async = isFileProtocol ? false : less.async; + + if (typeof(xhr.overrideMimeType) === 'function') { + xhr.overrideMimeType('text/css'); + } + xhr.open('GET', url, async); + xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); + xhr.send(null); + + if (isFileProtocol) { + if (xhr.status === 0) { + callback(xhr.responseText); + } else { + errback(xhr.status, url); + } + } else if (async) { + xhr.onreadystatechange = function () { + if (xhr.readyState == 4) { + handleResponse(xhr, callback, errback); + } + }; + } else { + handleResponse(xhr, callback, errback); + } + + function handleResponse(xhr, callback, errback) { + if (xhr.status >= 200 && xhr.status < 300) { + callback(xhr.responseText, + xhr.getResponseHeader("Last-Modified")); + } else if (typeof(errback) === 'function') { + errback(xhr.status, url); + } + } +} + +function getXMLHttpRequest() { + if (window.XMLHttpRequest) { + return new(XMLHttpRequest); + } else { + try { + return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); + } catch (e) { + log("browser doesn't support AJAX."); + return null; + } + } +} + +function removeNode(node) { + return node && node.parentNode.removeChild(node); +} + +function log(str) { + if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } +} + +function error(e, href) { + var id = 'less-error-message:' + extractId(href); + + var template = ['
    ', + '
  • {0}
    • ', + '
  • {current}
    • ', + '
  • {2}
    • ', + '
'].join('\n'); + + var elem = document.createElement('div'), timer, content; + + elem.id = id; + elem.className = "less-error-message"; + + content = '

' + (e.message || 'There is an error in your .less file') + + '

' + '

' + href + " "; + + if (e.extract) { + content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

' + + template.replace(/\[(-?\d)\]/g, function (_, i) { + return (parseInt(e.line) + parseInt(i)) || ''; + }).replace(/\{(\d)\}/g, function (_, i) { + return e.extract[parseInt(i)] || ''; + }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '' + + e.extract[1].slice(e.column) + ''); + } + elem.innerHTML = content; + + // CSS for error messages + createCSS([ + '.less-error-message ul, .less-error-message li {', + 'list-style-type: none;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'margin: 0;', + '}', + '.less-error-message label {', + 'font-size: 12px;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'color: #cc7777;', + '}', + '.less-error-message pre {', + 'color: #ee4444;', + 'padding: 4px 0;', + 'margin: 0;', + 'display: inline-block;', + '}', + '.less-error-message pre.ctx {', + 'color: #dd4444;', + '}', + '.less-error-message h3 {', + 'font-size: 20px;', + 'font-weight: bold;', + 'padding: 15px 0 5px 0;', + 'margin: 0;', + '}', + '.less-error-message a {', + 'color: #10a', + '}', + '.less-error-message .error {', + 'color: red;', + 'font-weight: bold;', + 'padding-bottom: 2px;', + 'border-bottom: 1px dashed red;', + '}' + ].join('\n'), { title: 'error-message' }); + + elem.style.cssText = [ + "font-family: Arial, sans-serif", + "border: 1px solid #e00", + "background-color: #eee", + "border-radius: 5px", + "-webkit-border-radius: 5px", + "-moz-border-radius: 5px", + "color: #e00", + "padding: 15px", + "margin-bottom: 15px" + ].join(';'); + + if (less.env == 'development') { + timer = setInterval(function () { + if (document.body) { + if (document.getElementById(id)) { + document.body.replaceChild(elem, document.getElementById(id)); + } else { + document.body.insertBefore(elem, document.body.firstChild); + } + clearInterval(timer); + } + }, 10); + } +} + +})(window); diff --git a/node_modules/less-brunch/node_modules/less/dist/less-1.1.1.min.js b/node_modules/less-brunch/node_modules/less/dist/less-1.1.1.min.js new file mode 100644 index 0000000..c204123 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/dist/less-1.1.1.min.js @@ -0,0 +1,16 @@ +// +// LESS - Leaner CSS v1.1.1 +// http://lesscss.org +// +// Copyright (c) 2009-2011, Alexis Sellier +// Licensed under the Apache 2.0 License. +// +// +// LESS - Leaner CSS v1.1.1 +// http://lesscss.org +// +// Copyright (c) 2009-2011, Alexis Sellier +// Licensed under the Apache 2.0 License. +// +(function(a,b){function v(a,b){var c="less-error-message:"+p(b),e=["
    ",'
  • {0}
    • ',"
  • {current}
    • ",'
  • {2}
    • ',"
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"+(a.message||"There is an error in your .less file")+"

"+'

'+b+" ",a.extract&&(h+="on line "+a.line+", column "+(a.column+1)+":

"+e.replace(/\[(-?\d)\]/g,function(b,c){return parseInt(a.line)+parseInt(c)||""}).replace(/\{(\d)\}/g,function(b,c){return a.extract[parseInt(c)]||""}).replace(/\{current\}/,a.extract[1].slice(0,a.column)+''+a.extract[1].slice(a.column)+"")),f.innerHTML=h,q([".less-error-message ul, .less-error-message li {","list-style-type: none;","margin-right: 15px;","padding: 4px 0;","margin: 0;","}",".less-error-message label {","font-size: 12px;","margin-right: 15px;","padding: 4px 0;","color: #cc7777;","}",".less-error-message pre {","color: #ee4444;","padding: 4px 0;","margin: 0;","display: inline-block;","}",".less-error-message pre.ctx {","color: #dd4444;","}",".less-error-message h3 {","font-size: 20px;","font-weight: bold;","padding: 15px 0 5px 0;","margin: 0;","}",".less-error-message a {","color: #10a","}",".less-error-message .error {","color: red;","font-weight: bold;","padding-bottom: 2px;","border-bottom: 1px dashed 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d=[],e=[],f=[],g=[],h,i;if(!this.root)if(b.length===0)g=this.selectors.map(function(a){return[a]});else for(var j=0;j0&&(h=g.map(function(a){return a.map(function(a){return a.toCSS(c)}).join("").trim()}).join(c.compress?",":g.length>3?",\n":", "),d.push(h,(c.compress?"{":" {\n ")+e.join(c.compress?"":"\n ")+(c.compress?"}":"\n}\n"))),d.push(f);return d.join("")+(c.compress?"\n":"")}}}(c("less/tree")),function(a){a.Selector=function(a){this.elements=a,this.elements[0].combinator.value===""&&(this.elements[0].combinator.value=" ")},a.Selector.prototype.match=function(a){return this.elements[0].value===a.elements[0].value?!0:!1},a.Selector.prototype.toCSS=function(a){if(this._css)return this._css;return this._css=this.elements.map(function(b){return typeof b=="string"?" "+b.trim():b.toCSS(a)}).join("")}}(c("less/tree")),function(b){b.URL=function(b,c){b.data?this.attrs=b:(!/^(?:https?:\/|file:\/|data:\/)?\//.test(b.value)&&c.length>0&&typeof a!="undefined"&&(b.value=c[0]+(b.value.charAt(0)==="/"?b.value.slice(1):b.value)),this.value=b,this.paths=c)},b.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(a){return this.attrs?this:new b.URL(this.value.eval(a),this.paths)}}}(c("less/tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("less/tree")),function(a){a.Variable=function(a,b){this.name=a,this.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("less/tree" +)),c("less/tree").find=function(a,b){for(var c=0,d;c1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var g=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||g?"development":"production"),d.async=!1,d.poll=d.poll||(g?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&n(function(a,b,c){a&&q(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var h;try{h=typeof a.localStorage=="undefined"?null:a.localStorage}catch(i){h=null}var j=document.getElementsByTagName("link"),k=/^text\/(x-)?less$/;d.sheets=[];for(var l=0;l>> 0; + for (var i = 0; i < len; i++) { + if (i in this) { + block.call(thisObject, this[i], i, this); + } + } + }; +} +if (!Array.prototype.map) { + Array.prototype.map = function(fun /*, thisp*/) { + var len = this.length >>> 0; + var res = new Array(len); + var thisp = arguments[1]; + + for (var i = 0; i < len; i++) { + if (i in this) { + res[i] = fun.call(thisp, this[i], i, this); + } + } + return res; + }; +} +if (!Array.prototype.filter) { + Array.prototype.filter = function (block /*, thisp */) { + var values = []; + var thisp = arguments[1]; + for (var i = 0; i < this.length; i++) { + if (block.call(thisp, this[i])) { + values.push(this[i]); + } + } + return values; + }; +} +if (!Array.prototype.reduce) { + Array.prototype.reduce = function(fun /*, initial*/) { + var len = this.length >>> 0; + var i = 0; + + // no value to return if no initial value and an empty array + if (len === 0 && arguments.length === 1) throw new TypeError(); + + if (arguments.length >= 2) { + var rv = arguments[1]; + } else { + do { + if (i in this) { + rv = this[i++]; + break; + } + // if array contains no values, no initial value to return + if (++i >= len) throw new TypeError(); + } while (true); + } + for (; i < len; i++) { + if (i in this) { + rv = fun.call(null, rv, this[i], i, this); + } + } + return rv; + }; +} +if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (value /*, fromIndex */ ) { + var length = this.length; + var i = arguments[1] || 0; + + if (!length) return -1; + if (i >= length) return -1; + if (i < 0) i += length; + + for (; i < length; i++) { + if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } + if (value === this[i]) return i; + } + return -1; + }; +} + +// +// Object +// +if (!Object.keys) { + Object.keys = function (object) { + var keys = []; + for (var name in object) { + if (Object.prototype.hasOwnProperty.call(object, name)) { + keys.push(name); + } + } + return keys; + }; +} + +// +// String +// +if (!String.prototype.trim) { + String.prototype.trim = function () { + return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); + }; +} +var less, tree; + +if (typeof(window) === 'undefined') { + less = exports, + tree = require('less/tree'); +} else { + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + mime: env && env.mime, // MIME type of .less files + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (root) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + + callback(root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + chunks = []; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + level = 0, + match, + chunk = chunks[0], + inParam, + inString; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = i; + + if (!inString && !inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + if (c === '{' && !inString && !inParam) { level ++; + chunk.push(c); + } else if (c === '}' && !inString && !inParam) { level --; + chunk.push(c); + chunks[++j] = chunk = []; + } else if (c === '(' && !inString && !inParam) { + chunk.push(c); + inParam = true; + } else if (c === ')' && !inString && inParam) { + chunk.push(c); + inParam = false; + } else { + if (c === '"' || c === "'" || c === '`') { + if (! inString) { + inString = c; + } else { + inString = inString === c ? false : inString; + } + } + chunk.push(c); + } + } + if (level > 0) { + throw { + type: 'Syntax', + message: "Missing closing `}`", + filename: env.filename + }; + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = []; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + lines = input.split('\n'); + line = getLine(e.index); + + for (var n = e.index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + throw { + type: e.type, + message: e.message, + filename: env.filename, + index: e.index, + line: typeof(line) === 'number' ? line + 1 : null, + callLine: e.call && (getLine(e.call) + 1), + callExtract: lines[getLine(e.call)], + stack: e.stack, + column: column, + extract: [ + lines[line - 1], + lines[line], + lines[line + 1] + ] + }; + } + if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + + function getLine(index) { + return index ? (input.slice(0, index).match(/\n/g) || "").length : null; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + name: "ParseError", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args; + + if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + if (! $(')')) throw new(Error)("missing closing ) for url()"); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i); + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args, index); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value; + + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + while (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + if (value = $(this.expression)) { + params.push({ name: param.name, value: value }); + } else { + throw new(Error)("Expected value"); + } + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + if (! $(',')) { break } + } + if (! $(')')) throw new(Error)("Expected )"); + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + if (! $(')')) throw new(Error)("missing closing ) for alpha()"); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c; + + c = $(this.combinator); + e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); + + if (e) { return new(tree.Element)(c, e) } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '&' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === ':' && input.charAt(i + 1) === ':') { + i += 2; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)('::'); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { + i += match[0].length - 1; + selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; + } else { + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url)) && + $(';')) { + return new(tree.Import)(path, imports); + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import'])) { + return value; + } else if (name = $(/^@media|@page|@-[-a-z]+/)) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (typeof(window) !== 'undefined') { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (path.charAt(0) !== '/' && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); + }; +} + +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math.round(number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math.round(n); + } else { + throw { + error: "RuntimeError", + message: "math functions take numbers as parameters" + }; + } + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('less/tree')); +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args) { + this.name = name; + this.args = args; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + return tree.functions[this.name].apply(tree.functions, args); + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('less/tree')); +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else if (rgb.length == 8) { + this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; + this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + } +}; + + +})(require('less/tree')); +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Directive = function (name, value) { + this.name = name; + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + if (this.ruleset) { + this.ruleset.root = true; + return this.name + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Element = function (combinator, value) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + this.value = value.trim(); +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + this.value; +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + ':' : ' :', + '::': '::', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('less/tree')); +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return this; + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(' '); + } +}; + +})(require('less/tree')); +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports) { + var that = this; + + this._path = path; + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (root) { + if (! root) { + throw new(Error)("Error parsing " + that.path); + } + that.root = root; + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function () { + if (this.css) { + return "@import " + this._path.toCSS() + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset; + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return ruleset.rules; + } + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + eval: function (env) { + var result, + that = this, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); + }); + + try { + expression = new(Function)('return (' + expression + ')'); + } catch (e) { + throw { message: "JavaScript evaluation error: `" + expression + "`" , + index: this.index }; + } + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + result = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + if (typeof(result) === 'string') { + return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); + } else if (Array.isArray(result)) { + return new(tree.Anonymous)(result.join(', ')); + } else { + return new(tree.Anonymous)(result); + } + } +}; + +})(require('less/tree')); + +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value } +}; + +})(require('less/tree')); +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, args, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(args, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments).rules); + match = true; + } catch (e) { + throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; + } + } + } + if (match) { + return rules; + } else { + throw { message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index }; + } + } + } + throw { message: this.selector.toCSS().trim() + " is undefined", + index: this.index }; + } +}; + +tree.mixin.Definition = function (name, params, rules) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + eval: function (env, args) { + var frame = new(tree.Ruleset)(null, []), context, _arguments = []; + + for (var i = 0, val; i < this.params.length; i++) { + if (this.params[i].name) { + if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); + } else { + throw { message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); + + return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len; + + if (argsLength < this.required) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + var that = this; + var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, that.index, true).eval(env).value; + }).replace(/@\{([\w-]+)\}/g, function (_, name) { + var v = new(tree.Variable)('@' + name, that.index).eval(env); + return v.value || v.toCSS(); + }); + return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Rule = function (name, value, important, index) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + ";"; + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Ruleset = function (selectors, rules) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); + + ruleset.root = this.root; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > 1) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + for (var s = 0; s < this.selectors.length; s++) { + for (var c = 0; c < context.length; c++) { + paths.push(context[c].concat([this.selectors[s]])); + } + } + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + } +}; +})(require('less/tree')); +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + if (this.elements[0].value === other.elements[0].value) { + return true; + } else { + return false; + } +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('less/tree')); +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Variable = function (name, index) { this.name = name, this.index = index }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { message: "variable " + name + " is undefined", + index: this.index }; + } + } +}; + +})(require('less/tree')); +require('less/tree').find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +require('less/tree').jsify = function (obj) { + if (Array.isArray(obj.value) && (obj.value.length > 1)) { + return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; + } else { + return obj.toCSS(false); + } +}; +// +// browser.js - client-side engine +// + +var isFileProtocol = (location.protocol === 'file:' || + location.protocol === 'chrome:' || + location.protocol === 'chrome-extension:' || + location.protocol === 'resource:'); + +less.env = less.env || (location.hostname == '127.0.0.1' || + location.hostname == '0.0.0.0' || + location.hostname == 'localhost' || + location.port.length > 0 || + isFileProtocol ? 'development' + : 'production'); + +// Load styles asynchronously (default: false) +// +// This is set to `false` by default, so that the body +// doesn't start loading before the stylesheets are parsed. +// Setting this to `true` can result in flickering. +// +less.async = false; + +// Interval between watch polls +less.poll = less.poll || (isFileProtocol ? 1000 : 1500); + +// +// Watch mode +// +less.watch = function () { return this.watchMode = true }; +less.unwatch = function () { return this.watchMode = false }; + +if (less.env === 'development') { + less.optimization = 0; + + if (/!watch/.test(location.hash)) { + less.watch(); + } + less.watchTimer = setInterval(function () { + if (less.watchMode) { + loadStyleSheets(function (root, sheet, env) { + if (root) { + createCSS(root.toCSS(), sheet, env.lastModified); + } + }); + } + }, less.poll); +} else { + less.optimization = 3; +} + +var cache; + +try { + cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; +} catch (_) { + cache = null; +} + +// +// Get all tags with the 'rel' attribute set to "stylesheet/less" +// +var links = document.getElementsByTagName('link'); +var typePattern = /^text\/(x-)?less$/; + +less.sheets = []; + +for (var i = 0; i < links.length; i++) { + if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && + (links[i].type.match(typePattern)))) { + less.sheets.push(links[i]); + } +} + + +less.refresh = function (reload) { + var startTime, endTime; + startTime = endTime = new(Date); + + loadStyleSheets(function (root, sheet, env) { + if (env.local) { + log("loading " + sheet.href + " from cache."); + } else { + log("parsed " + sheet.href + " successfully."); + createCSS(root.toCSS(), sheet, env.lastModified); + } + log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); + (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); + endTime = new(Date); + }, reload); + + loadStyles(); +}; +less.refreshStyles = loadStyles; + +less.refresh(less.env === 'development'); + +function loadStyles() { + var styles = document.getElementsByTagName('style'); + for (var i = 0; i < styles.length; i++) { + if (styles[i].type.match(typePattern)) { + new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { + styles[i].type = 'text/css'; + styles[i].innerHTML = tree.toCSS(); + }); + } + } +} + +function loadStyleSheets(callback, reload) { + for (var i = 0; i < less.sheets.length; i++) { + loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); + } +} + +function loadStyleSheet(sheet, callback, reload, remaining) { + var url = window.location.href.replace(/[#?].*$/, ''); + var href = sheet.href.replace(/\?.*$/, ''); + var css = cache && cache.getItem(href); + var timestamp = cache && cache.getItem(href + ':timestamp'); + var styles = { css: css, timestamp: timestamp }; + + // Stylesheets in IE don't always return the full path + if (! /^(https?|file):/.test(href)) { + if (href.charAt(0) == "/") { + href = window.location.protocol + "//" + window.location.host + href; + } else { + href = url.slice(0, url.lastIndexOf('/') + 1) + href; + } + } + + xhr(sheet.href, sheet.type, function (data, lastModified) { + if (!reload && styles && lastModified && + (new(Date)(lastModified).valueOf() === + new(Date)(styles.timestamp).valueOf())) { + // Use local copy + createCSS(styles.css, sheet); + callback(null, sheet, { local: true, remaining: remaining }); + } else { + // Use remote copy (re-parse) + try { + new(less.Parser)({ + optimization: less.optimization, + paths: [href.replace(/[\w\.-]+$/, '')], + mime: sheet.type + }).parse(data, function (e, root) { + if (e) { return error(e, href) } + try { + callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); + removeNode(document.getElementById('less-error-message:' + extractId(href))); + } catch (e) { + error(e, href); + } + }); + } catch (e) { + error(e, href); + } + } + }, function (status, url) { + throw new(Error)("Couldn't load " + url + " (" + status + ")"); + }); +} + +function extractId(href) { + return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain + .replace(/^\//, '' ) // Remove root / + .replace(/\?.*$/, '' ) // Remove query + .replace(/\.[^\.\/]+$/, '' ) // Remove file extension + .replace(/[^\.\w-]+/g, '-') // Replace illegal characters + .replace(/\./g, ':'); // Replace dots with colons(for valid id) +} + +function createCSS(styles, sheet, lastModified) { + var css; + + // Strip the query-string + var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; + + // If there is no title set, use the filename, minus the extension + var id = 'less:' + (sheet.title || extractId(href)); + + // If the stylesheet doesn't exist, create a new node + if ((css = document.getElementById(id)) === null) { + css = document.createElement('style'); + css.type = 'text/css'; + css.media = sheet.media || 'screen'; + css.id = id; + document.getElementsByTagName('head')[0].appendChild(css); + } + + if (css.styleSheet) { // IE + try { + css.styleSheet.cssText = styles; + } catch (e) { + throw new(Error)("Couldn't reassign styleSheet.cssText."); + } + } else { + (function (node) { + if (css.childNodes.length > 0) { + if (css.firstChild.nodeValue !== node.nodeValue) { + css.replaceChild(node, css.firstChild); + } + } else { + css.appendChild(node); + } + })(document.createTextNode(styles)); + } + + // Don't update the local store if the file wasn't modified + if (lastModified && cache) { + log('saving ' + href + ' to cache.'); + cache.setItem(href, styles); + cache.setItem(href + ':timestamp', lastModified); + } +} + +function xhr(url, type, callback, errback) { + var xhr = getXMLHttpRequest(); + var async = isFileProtocol ? false : less.async; + + if (typeof(xhr.overrideMimeType) === 'function') { + xhr.overrideMimeType('text/css'); + } + xhr.open('GET', url, async); + xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); + xhr.send(null); + + if (isFileProtocol) { + if (xhr.status === 0) { + callback(xhr.responseText); + } else { + errback(xhr.status, url); + } + } else if (async) { + xhr.onreadystatechange = function () { + if (xhr.readyState == 4) { + handleResponse(xhr, callback, errback); + } + }; + } else { + handleResponse(xhr, callback, errback); + } + + function handleResponse(xhr, callback, errback) { + if (xhr.status >= 200 && xhr.status < 300) { + callback(xhr.responseText, + xhr.getResponseHeader("Last-Modified")); + } else if (typeof(errback) === 'function') { + errback(xhr.status, url); + } + } +} + +function getXMLHttpRequest() { + if (window.XMLHttpRequest) { + return new(XMLHttpRequest); + } else { + try { + return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); + } catch (e) { + log("browser doesn't support AJAX."); + return null; + } + } +} + +function removeNode(node) { + return node && node.parentNode.removeChild(node); +} + +function log(str) { + if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } +} + +function error(e, href) { + var id = 'less-error-message:' + extractId(href); + + var template = ['
    ', + '
  • {0}
    • ', + '
  • {current}
    • ', + '
  • {2}
    • ', + '
'].join('\n'); + + var elem = document.createElement('div'), timer, content; + + elem.id = id; + elem.className = "less-error-message"; + + content = '

' + (e.message || 'There is an error in your .less file') + + '

' + '

' + href + " "; + + if (e.extract) { + content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

' + + template.replace(/\[(-?\d)\]/g, function (_, i) { + return (parseInt(e.line) + parseInt(i)) || ''; + }).replace(/\{(\d)\}/g, function (_, i) { + return e.extract[parseInt(i)] || ''; + }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '' + + e.extract[1].slice(e.column) + ''); + } + elem.innerHTML = content; + + // CSS for error messages + createCSS([ + '.less-error-message ul, .less-error-message li {', + 'list-style-type: none;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'margin: 0;', + '}', + '.less-error-message label {', + 'font-size: 12px;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'color: #cc7777;', + '}', + '.less-error-message pre {', + 'color: #ee4444;', + 'padding: 4px 0;', + 'margin: 0;', + 'display: inline-block;', + '}', + '.less-error-message pre.ctx {', + 'color: #dd4444;', + '}', + '.less-error-message h3 {', + 'font-size: 20px;', + 'font-weight: bold;', + 'padding: 15px 0 5px 0;', + 'margin: 0;', + '}', + '.less-error-message a {', + 'color: #10a', + '}', + '.less-error-message .error {', + 'color: red;', + 'font-weight: bold;', + 'padding-bottom: 2px;', + 'border-bottom: 1px dashed red;', + '}' + ].join('\n'), { title: 'error-message' }); + + elem.style.cssText = [ + "font-family: Arial, sans-serif", + "border: 1px solid #e00", + "background-color: #eee", + "border-radius: 5px", + "-webkit-border-radius: 5px", + "-moz-border-radius: 5px", + "color: #e00", + "padding: 15px", + "margin-bottom: 15px" + ].join(';'); + + if (less.env == 'development') { + timer = setInterval(function () { + if (document.body) { + if (document.getElementById(id)) { + document.body.replaceChild(elem, document.getElementById(id)); + } else { + document.body.insertBefore(elem, document.body.firstChild); + } + clearInterval(timer); + } + }, 10); + } +} + +})(window); diff --git a/node_modules/less-brunch/node_modules/less/dist/less-1.1.2.min.js b/node_modules/less-brunch/node_modules/less/dist/less-1.1.2.min.js new file mode 100644 index 0000000..9b2fc8a --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/dist/less-1.1.2.min.js @@ -0,0 +1,16 @@ +// +// LESS - Leaner CSS v1.1.2 +// http://lesscss.org +// +// Copyright (c) 2009-2011, Alexis Sellier +// Licensed under the Apache 2.0 License. +// +// +// LESS - Leaner CSS v1.1.2 +// http://lesscss.org +// +// Copyright (c) 2009-2011, Alexis Sellier +// Licensed under the Apache 2.0 License. +// +(function(a,b){function v(a,b){var c="less-error-message:"+p(b),e=["
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+ for (var i = 0; i < len; i++) { + if (i in this) { + block.call(thisObject, this[i], i, this); + } + } + }; +} +if (!Array.prototype.map) { + Array.prototype.map = function(fun /*, thisp*/) { + var len = this.length >>> 0; + var res = new Array(len); + var thisp = arguments[1]; + + for (var i = 0; i < len; i++) { + if (i in this) { + res[i] = fun.call(thisp, this[i], i, this); + } + } + return res; + }; +} +if (!Array.prototype.filter) { + Array.prototype.filter = function (block /*, thisp */) { + var values = []; + var thisp = arguments[1]; + for (var i = 0; i < this.length; i++) { + if (block.call(thisp, this[i])) { + values.push(this[i]); + } + } + return values; + }; +} +if (!Array.prototype.reduce) { + Array.prototype.reduce = function(fun /*, initial*/) { + var len = this.length >>> 0; + var i = 0; + + // no value to return if no initial value and an empty array + if (len === 0 && arguments.length === 1) throw new TypeError(); + + if (arguments.length >= 2) { + var rv = arguments[1]; + } else { + do { + if (i in this) { + rv = this[i++]; + break; + } + // if array contains no values, no initial value to return + if (++i >= len) throw new TypeError(); + } while (true); + } + for (; i < len; i++) { + if (i in this) { + rv = fun.call(null, rv, this[i], i, this); + } + } + return rv; + }; +} +if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (value /*, fromIndex */ ) { + var length = this.length; + var i = arguments[1] || 0; + + if (!length) return -1; + if (i >= length) return -1; + if (i < 0) i += length; + + for (; i < length; i++) { + if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } + if (value === this[i]) return i; + } + return -1; + }; +} + +// +// Object +// +if (!Object.keys) { + Object.keys = function (object) { + var keys = []; + for (var name in object) { + if (Object.prototype.hasOwnProperty.call(object, name)) { + keys.push(name); + } + } + return keys; + }; +} + +// +// String +// +if (!String.prototype.trim) { + String.prototype.trim = function () { + return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); + }; +} +var less, tree; + +if (typeof(window) === 'undefined') { + less = exports, + tree = require('less/tree'); +} else { + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + mime: env && env.mime, // MIME type of .less files + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (root) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + + callback(root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + chunks = []; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + level = 0, + match, + chunk = chunks[0], + inParam, + inString; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = i; + + if (!inString && !inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + if (c === '{' && !inString && !inParam) { level ++; + chunk.push(c); + } else if (c === '}' && !inString && !inParam) { level --; + chunk.push(c); + chunks[++j] = chunk = []; + } else if (c === '(' && !inString && !inParam) { + chunk.push(c); + inParam = true; + } else if (c === ')' && !inString && inParam) { + chunk.push(c); + inParam = false; + } else { + if (c === '"' || c === "'" || c === '`') { + if (! inString) { + inString = c; + } else { + inString = inString === c ? false : inString; + } + } + chunk.push(c); + } + } + if (level > 0) { + throw { + type: 'Syntax', + message: "Missing closing `}`", + filename: env.filename + }; + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = []; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + lines = input.split('\n'); + line = getLine(e.index); + + for (var n = e.index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + throw { + type: e.type, + message: e.message, + filename: env.filename, + index: e.index, + line: typeof(line) === 'number' ? line + 1 : null, + callLine: e.call && (getLine(e.call) + 1), + callExtract: lines[getLine(e.call)], + stack: e.stack, + column: column, + extract: [ + lines[line - 1], + lines[line], + lines[line + 1] + ] + }; + } + if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + + function getLine(index) { + return index ? (input.slice(0, index).match(/\n/g) || "").length : null; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + name: "ParseError", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args, index = i; + + if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args, index) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + if (! $(')')) throw new(Error)("missing closing ) for url()"); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i); + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args, index); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value; + + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + while (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + if (value = $(this.expression)) { + params.push({ name: param.name, value: value }); + } else { + throw new(Error)("Expected value"); + } + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + if (! $(',')) { break } + } + if (! $(')')) throw new(Error)("Expected )"); + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^\(opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + if (! $(')')) throw new(Error)("missing closing ) for alpha()"); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c; + + c = $(this.combinator); + e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); + + if (e) { return new(tree.Element)(c, e) } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '&' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === ':' && input.charAt(i + 1) === ':') { + i += 2; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)('::'); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { + i += match[0].length - 1; + selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; + } else { + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url)) && + $(';')) { + return new(tree.Import)(path, imports); + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import'])) { + return value; + } else if (name = $(/^@media|@page|@-[-a-z]+/)) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (typeof(window) !== 'undefined') { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (path.charAt(0) !== '/' && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); + }; +} + +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math.round(number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math.round(n); + } else { + throw { + error: "RuntimeError", + message: "math functions take numbers as parameters" + }; + } + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('less/tree')); +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args, index) { + this.name = name; + this.args = args; + this.index = index; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + try { + return tree.functions[this.name].apply(tree.functions, args); + } catch (e) { + throw { message: "error evaluating function `" + this.name + "`", + index: this.index }; + } + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('less/tree')); +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else if (rgb.length == 8) { + this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; + this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + } +}; + + +})(require('less/tree')); +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Directive = function (name, value) { + this.name = name; + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + if (this.ruleset) { + this.ruleset.root = true; + return this.name + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Element = function (combinator, value) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + this.value = value.trim(); +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + this.value; +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + ':' : ' :', + '::': '::', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('less/tree')); +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return this; + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(' '); + } +}; + +})(require('less/tree')); +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports) { + var that = this; + + this._path = path; + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (root) { + if (! root) { + throw new(Error)("Error parsing " + that.path); + } + that.root = root; + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function () { + if (this.css) { + return "@import " + this._path.toCSS() + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset; + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return ruleset.rules; + } + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + eval: function (env) { + var result, + that = this, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); + }); + + try { + expression = new(Function)('return (' + expression + ')'); + } catch (e) { + throw { message: "JavaScript evaluation error: `" + expression + "`" , + index: this.index }; + } + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + result = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + if (typeof(result) === 'string') { + return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); + } else if (Array.isArray(result)) { + return new(tree.Anonymous)(result.join(', ')); + } else { + return new(tree.Anonymous)(result); + } + } +}; + +})(require('less/tree')); + +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value } +}; + +})(require('less/tree')); +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, args, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(args, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments).rules); + match = true; + } catch (e) { + throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; + } + } + } + if (match) { + return rules; + } else { + throw { message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index }; + } + } + } + throw { message: this.selector.toCSS().trim() + " is undefined", + index: this.index }; + } +}; + +tree.mixin.Definition = function (name, params, rules) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + eval: function (env, args) { + var frame = new(tree.Ruleset)(null, []), context, _arguments = []; + + for (var i = 0, val; i < this.params.length; i++) { + if (this.params[i].name) { + if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); + } else { + throw { message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); + + return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len; + + if (argsLength < this.required) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + var that = this; + var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, that.index, true).eval(env).value; + }).replace(/@\{([\w-]+)\}/g, function (_, name) { + var v = new(tree.Variable)('@' + name, that.index).eval(env); + return v.value || v.toCSS(); + }); + return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Rule = function (name, value, important, index) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + ";"; + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Ruleset = function (selectors, rules) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); + + ruleset.root = this.root; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > 1) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + for (var s = 0; s < this.selectors.length; s++) { + for (var c = 0; c < context.length; c++) { + paths.push(context[c].concat([this.selectors[s]])); + } + } + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + } +}; +})(require('less/tree')); +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + if (this.elements[0].value === other.elements[0].value) { + return true; + } else { + return false; + } +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('less/tree')); +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Variable = function (name, index) { this.name = name, this.index = index }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { message: "variable " + name + " is undefined", + index: this.index }; + } + } +}; + +})(require('less/tree')); +require('less/tree').find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +require('less/tree').jsify = function (obj) { + if (Array.isArray(obj.value) && (obj.value.length > 1)) { + return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; + } else { + return obj.toCSS(false); + } +}; +// +// browser.js - client-side engine +// + +var isFileProtocol = (location.protocol === 'file:' || + location.protocol === 'chrome:' || + location.protocol === 'chrome-extension:' || + location.protocol === 'resource:'); + +less.env = less.env || (location.hostname == '127.0.0.1' || + location.hostname == '0.0.0.0' || + location.hostname == 'localhost' || + location.port.length > 0 || + isFileProtocol ? 'development' + : 'production'); + +// Load styles asynchronously (default: false) +// +// This is set to `false` by default, so that the body +// doesn't start loading before the stylesheets are parsed. +// Setting this to `true` can result in flickering. +// +less.async = false; + +// Interval between watch polls +less.poll = less.poll || (isFileProtocol ? 1000 : 1500); + +// +// Watch mode +// +less.watch = function () { return this.watchMode = true }; +less.unwatch = function () { return this.watchMode = false }; + +if (less.env === 'development') { + less.optimization = 0; + + if (/!watch/.test(location.hash)) { + less.watch(); + } + less.watchTimer = setInterval(function () { + if (less.watchMode) { + loadStyleSheets(function (root, sheet, env) { + if (root) { + createCSS(root.toCSS(), sheet, env.lastModified); + } + }); + } + }, less.poll); +} else { + less.optimization = 3; +} + +var cache; + +try { + cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; +} catch (_) { + cache = null; +} + +// +// Get all tags with the 'rel' attribute set to "stylesheet/less" +// +var links = document.getElementsByTagName('link'); +var typePattern = /^text\/(x-)?less$/; + +less.sheets = []; + +for (var i = 0; i < links.length; i++) { + if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && + (links[i].type.match(typePattern)))) { + less.sheets.push(links[i]); + } +} + + +less.refresh = function (reload) { + var startTime, endTime; + startTime = endTime = new(Date); + + loadStyleSheets(function (root, sheet, env) { + if (env.local) { + log("loading " + sheet.href + " from cache."); + } else { + log("parsed " + sheet.href + " successfully."); + createCSS(root.toCSS(), sheet, env.lastModified); + } + log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); + (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); + endTime = new(Date); + }, reload); + + loadStyles(); +}; +less.refreshStyles = loadStyles; + +less.refresh(less.env === 'development'); + +function loadStyles() { + var styles = document.getElementsByTagName('style'); + for (var i = 0; i < styles.length; i++) { + if (styles[i].type.match(typePattern)) { + new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { + styles[i].type = 'text/css'; + styles[i].innerHTML = tree.toCSS(); + }); + } + } +} + +function loadStyleSheets(callback, reload) { + for (var i = 0; i < less.sheets.length; i++) { + loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); + } +} + +function loadStyleSheet(sheet, callback, reload, remaining) { + var url = window.location.href.replace(/[#?].*$/, ''); + var href = sheet.href.replace(/\?.*$/, ''); + var css = cache && cache.getItem(href); + var timestamp = cache && cache.getItem(href + ':timestamp'); + var styles = { css: css, timestamp: timestamp }; + + // Stylesheets in IE don't always return the full path + if (! /^(https?|file):/.test(href)) { + if (href.charAt(0) == "/") { + href = window.location.protocol + "//" + window.location.host + href; + } else { + href = url.slice(0, url.lastIndexOf('/') + 1) + href; + } + } + + xhr(sheet.href, sheet.type, function (data, lastModified) { + if (!reload && styles && lastModified && + (new(Date)(lastModified).valueOf() === + new(Date)(styles.timestamp).valueOf())) { + // Use local copy + createCSS(styles.css, sheet); + callback(null, sheet, { local: true, remaining: remaining }); + } else { + // Use remote copy (re-parse) + try { + new(less.Parser)({ + optimization: less.optimization, + paths: [href.replace(/[\w\.-]+$/, '')], + mime: sheet.type + }).parse(data, function (e, root) { + if (e) { return error(e, href) } + try { + callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); + removeNode(document.getElementById('less-error-message:' + extractId(href))); + } catch (e) { + error(e, href); + } + }); + } catch (e) { + error(e, href); + } + } + }, function (status, url) { + throw new(Error)("Couldn't load " + url + " (" + status + ")"); + }); +} + +function extractId(href) { + return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain + .replace(/^\//, '' ) // Remove root / + .replace(/\?.*$/, '' ) // Remove query + .replace(/\.[^\.\/]+$/, '' ) // Remove file extension + .replace(/[^\.\w-]+/g, '-') // Replace illegal characters + .replace(/\./g, ':'); // Replace dots with colons(for valid id) +} + +function createCSS(styles, sheet, lastModified) { + var css; + + // Strip the query-string + var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; + + // If there is no title set, use the filename, minus the extension + var id = 'less:' + (sheet.title || extractId(href)); + + // If the stylesheet doesn't exist, create a new node + if ((css = document.getElementById(id)) === null) { + css = document.createElement('style'); + css.type = 'text/css'; + css.media = sheet.media || 'screen'; + css.id = id; + document.getElementsByTagName('head')[0].appendChild(css); + } + + if (css.styleSheet) { // IE + try { + css.styleSheet.cssText = styles; + } catch (e) { + throw new(Error)("Couldn't reassign styleSheet.cssText."); + } + } else { + (function (node) { + if (css.childNodes.length > 0) { + if (css.firstChild.nodeValue !== node.nodeValue) { + css.replaceChild(node, css.firstChild); + } + } else { + css.appendChild(node); + } + })(document.createTextNode(styles)); + } + + // Don't update the local store if the file wasn't modified + if (lastModified && cache) { + log('saving ' + href + ' to cache.'); + cache.setItem(href, styles); + cache.setItem(href + ':timestamp', lastModified); + } +} + +function xhr(url, type, callback, errback) { + var xhr = getXMLHttpRequest(); + var async = isFileProtocol ? false : less.async; + + if (typeof(xhr.overrideMimeType) === 'function') { + xhr.overrideMimeType('text/css'); + } + xhr.open('GET', url, async); + xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); + xhr.send(null); + + if (isFileProtocol) { + if (xhr.status === 0) { + callback(xhr.responseText); + } else { + errback(xhr.status, url); + } + } else if (async) { + xhr.onreadystatechange = function () { + if (xhr.readyState == 4) { + handleResponse(xhr, callback, errback); + } + }; + } else { + handleResponse(xhr, callback, errback); + } + + function handleResponse(xhr, callback, errback) { + if (xhr.status >= 200 && xhr.status < 300) { + callback(xhr.responseText, + xhr.getResponseHeader("Last-Modified")); + } else if (typeof(errback) === 'function') { + errback(xhr.status, url); + } + } +} + +function getXMLHttpRequest() { + if (window.XMLHttpRequest) { + return new(XMLHttpRequest); + } else { + try { + return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); + } catch (e) { + log("browser doesn't support AJAX."); + return null; + } + } +} + +function removeNode(node) { + return node && node.parentNode.removeChild(node); +} + +function log(str) { + if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } +} + +function error(e, href) { + var id = 'less-error-message:' + extractId(href); + + var template = ['
    ', + '
  • {0}
    • ', + '
  • {current}
    • ', + '
  • {2}
    • ', + '
'].join('\n'); + + var elem = document.createElement('div'), timer, content; + + elem.id = id; + elem.className = "less-error-message"; + + content = '

' + (e.message || 'There is an error in your .less file') + + '

' + '

' + href + " "; + + if (e.extract) { + content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

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a.Dimension(b.toHSL().a)},saturate:function(a,c){var e=a.toHSL();e.s+=c.value/100,e.s=d(e.s);return b(e)},desaturate:function(a,c){var e=a.toHSL();e.s-=c.value/100,e.s=d(e.s);return b(e)},lighten:function(a,c){var e=a.toHSL();e.l+=c.value/100,e.l=d(e.l);return b(e)},darken:function(a,c){var e=a.toHSL();e.l-=c.value/100,e.l=d(e.l);return b(e)},fadein:function(a,c){var e=a.toHSL();e.a+=c.value/100,e.a=d(e.a);return b(e)},fadeout:function(a,c){var e=a.toHSL();e.a-=c.value/100,e.a=d(e.a);return b(e)},spin:function(a,c){var d=a.toHSL(),e=(d.h+c.value)%360;d.h=e<0?360+e:e;return b(d)},mix:function(b,c,d){var e=d.value/100,f=e*2-1,g=b.toHSL().a-c.toHSL().a,h=((f*g==-1?f:(f+g)/(1+f*g))+1)/2,i=1-h,j=[b.rgb[0]*h+c.rgb[0]*i,b.rgb[1]*h+c.rgb[1]*i,b.rgb[2]*h+c.rgb[2]*i],k=b.alpha*e+c.alpha*(1-e);return new a.Color(j,k)},greyscale:function(b){return this.desaturate(b,new a.Dimension(100))},e:function(b){return new a.Anonymous(b instanceof a.JavaScript?b.evaluated:b)},escape:function(b){return new a.Anonymous(encodeURI(b.value).replace(/=/g,"%3D").replace(/:/g,"%3A").replace(/#/g,"%23").replace(/;/g,"%3B").replace(/\(/g,"%28").replace(/\)/g,"%29"))},"%":function(b){var c=Array.prototype.slice.call(arguments,1),d=b.value;for(var e=0;e255?255:a<0?0:a).toString(16);return a.length===1?"0"+a:a}).join("")},operate:function(b,c){var d=[];c instanceof a.Color||(c=c.toColor());for(var e=0;e<3;e++)d[e]=a.operate(b,this.rgb[e],c.rgb[e]);return new a.Color(d,this.alpha+c.alpha)},toHSL:function(){var a=this.rgb[0]/255,b=this.rgb[1]/255,c=this.rgb[2]/255,d=this.alpha,e=Math.max(a,b,c),f=Math.min(a,b,c),g,h,i=(e+f)/2,j=e-f;if(e===f)g=h=0;else{h=i>.5?j/(2-e-f):j/(e+f);switch(e){case a:g=(b-c)/j+(b":a.compress?">":" > "}[this.value]}}(c("less/tree")),function(a){a.Expression=function(a){this.value=a},a.Expression.prototype={eval:function(b){return this.value.length>1?new a.Expression(this.value.map(function(a){return a.eval(b)})):this.value.length===1?this.value[0].eval(b):this},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(" ")}}}(c("less/tree")),function(a){a.Import=function(b,c){var d=this;this._path=b,b instanceof a.Quoted?this.path=/\.(le?|c)ss$/.test(b.value)?b.value:b.value+".less":this.path=b.value.value||b.value,this.css=/css$/.test(this.path),this.css||c.push(this.path,function(a){if(!a)throw new Error("Error parsing "+d.path);d.root=a})},a.Import.prototype={toCSS:function(){return this.css?"@import "+this._path.toCSS()+";\n":""},eval:function(b){var c;if(this.css)return this;c=new a.Ruleset(null,this.root.rules.slice(0));for(var d=0;d0){c=this.arguments&&this.arguments.map(function(b){return b.eval(a)});for(var g=0;g0&&c>this.params.length)return!1;d=Math.min(c,this.arity);for(var e=0;e1?Array.prototype.push.apply(d,e.find(new a.Selector(b.elements.slice(1)),c)):d.push(e);break}});return this._lookups[g]=d},toCSS:function(b,c){var d=[],e=[],f=[],g=[],h,i;if(!this.root)if(b.length===0)g=this.selectors.map(function(a){return[a]});else for(var j=0;j0&&(h=g.map(function(a){return a.map(function(a){return a.toCSS(c)}).join("").trim()}).join(c.compress?",":g.length>3?",\n":", "),d.push(h,(c.compress?"{":" {\n ")+e.join(c.compress?"":"\n ")+(c.compress?"}":"\n}\n"))),d.push(f);return d.join("")+(c.compress?"\n":"")}}}(c("less/tree")),function(a){a.Selector=function(a){this.elements=a,this.elements[0].combinator.value===""&&(this.elements[0].combinator.value=" ")},a.Selector.prototype.match=function(a){return this.elements[0].value===a.elements[0].value?!0:!1},a.Selector.prototype.toCSS=function(a){if(this._css)return this._css;return this._css=this.elements.map(function(b){return typeof b=="string"?" "+b.trim():b.toCSS(a)}).join("")}}(c("less/tree")),function(b){b.URL=function(b,c){b.data?this.attrs=b:(!/^(?:https?:\/|file:\/|data:\/)?\//.test(b.value)&&c.length>0&&typeof a!="undefined"&&(b.value=c[0]+(b.value.charAt(0)==="/"?b.value.slice(1):b.value)),this.value=b,this.paths=c)},b.URL.prototype={toCSS:function(){return"url("+(this.attrs?"data:"+this.attrs.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(a){return this.attrs?this:new b.URL(this.value.eval(a),this.paths)}}}(c("less/tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("less/tree")),function(a){a.Variable=function(a,b){this.name=a,this +.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("less/tree")),c("less/tree").find=function(a,b){for(var c=0,d;c1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var g=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||g?"development":"production"),d.async=!1,d.poll=d.poll||(g?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&n(function(a,b,c){a&&q(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var h;try{h=typeof a.localStorage=="undefined"?null:a.localStorage}catch(i){h=null}var j=document.getElementsByTagName("link"),k=/^text\/(x-)?less$/;d.sheets=[];for(var l=0;l>> 0; + for (var i = 0; i < len; i++) { + if (i in this) { + block.call(thisObject, this[i], i, this); + } + } + }; +} +if (!Array.prototype.map) { + Array.prototype.map = function(fun /*, thisp*/) { + var len = this.length >>> 0; + var res = new Array(len); + var thisp = arguments[1]; + + for (var i = 0; i < len; i++) { + if (i in this) { + res[i] = fun.call(thisp, this[i], i, this); + } + } + return res; + }; +} +if (!Array.prototype.filter) { + Array.prototype.filter = function (block /*, thisp */) { + var values = []; + var thisp = arguments[1]; + for (var i = 0; i < this.length; i++) { + if (block.call(thisp, this[i])) { + values.push(this[i]); + } + } + return values; + }; +} +if (!Array.prototype.reduce) { + Array.prototype.reduce = function(fun /*, initial*/) { + var len = this.length >>> 0; + var i = 0; + + // no value to return if no initial value and an empty array + if (len === 0 && arguments.length === 1) throw new TypeError(); + + if (arguments.length >= 2) { + var rv = arguments[1]; + } else { + do { + if (i in this) { + rv = this[i++]; + break; + } + // if array contains no values, no initial value to return + if (++i >= len) throw new TypeError(); + } while (true); + } + for (; i < len; i++) { + if (i in this) { + rv = fun.call(null, rv, this[i], i, this); + } + } + return rv; + }; +} +if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (value /*, fromIndex */ ) { + var length = this.length; + var i = arguments[1] || 0; + + if (!length) return -1; + if (i >= length) return -1; + if (i < 0) i += length; + + for (; i < length; i++) { + if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } + if (value === this[i]) return i; + } + return -1; + }; +} + +// +// Object +// +if (!Object.keys) { + Object.keys = function (object) { + var keys = []; + for (var name in object) { + if (Object.prototype.hasOwnProperty.call(object, name)) { + keys.push(name); + } + } + return keys; + }; +} + +// +// String +// +if (!String.prototype.trim) { + String.prototype.trim = function () { + return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); + }; +} +var less, tree; + +if (typeof(window) === 'undefined') { + less = exports, + tree = require('less/tree'); +} else { + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + mime: env && env.mime, // MIME type of .less files + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (root) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + + callback(root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + chunks = []; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + level = 0, + match, + chunk = chunks[0], + inParam, + inString; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = i; + + if (!inString && !inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + if (c === '{' && !inString && !inParam) { level ++; + chunk.push(c); + } else if (c === '}' && !inString && !inParam) { level --; + chunk.push(c); + chunks[++j] = chunk = []; + } else if (c === '(' && !inString && !inParam) { + chunk.push(c); + inParam = true; + } else if (c === ')' && !inString && inParam) { + chunk.push(c); + inParam = false; + } else { + if (c === '"' || c === "'" || c === '`') { + if (! inString) { + inString = c; + } else { + inString = inString === c ? false : inString; + } + } + chunk.push(c); + } + } + if (level > 0) { + throw { + type: 'Syntax', + message: "Missing closing `}`", + filename: env.filename + }; + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = []; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + lines = input.split('\n'); + line = getLine(e.index); + + for (var n = e.index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + throw { + type: e.type, + message: e.message, + filename: env.filename, + index: e.index, + line: typeof(line) === 'number' ? line + 1 : null, + callLine: e.call && (getLine(e.call) + 1), + callExtract: lines[getLine(e.call)], + stack: e.stack, + column: column, + extract: [ + lines[line - 1], + lines[line], + lines[line + 1] + ] + }; + } + if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + + function getLine(index) { + return index ? (input.slice(0, index).match(/\n/g) || "").length : null; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + name: "ParseError", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args, index = i; + + if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args, index) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + if (! $(')')) throw new(Error)("missing closing ) for url()"); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i); + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args, index); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value; + + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + while (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + if (value = $(this.expression)) { + params.push({ name: param.name, value: value }); + } else { + throw new(Error)("Expected value"); + } + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + if (! $(',')) { break } + } + if (! $(')')) throw new(Error)("Expected )"); + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^\(opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + if (! $(')')) throw new(Error)("missing closing ) for alpha()"); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c; + + c = $(this.combinator); + e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/) || $(/^(?:\d*\.)?\d+%/); + + if (e) { return new(tree.Element)(c, e) } + + if (c.value && c.value[0] === '&') { + return new(tree.Element)(c, null); + } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === '&') { + match = '&'; + i++; + if(input.charAt(i) === ' ') { + match = '& '; + } + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(match); + } else if (c === ':' && input.charAt(i + 1) === ':') { + i += 2; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)('::'); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + if (match = /^([.#:% \w-]+)[\s\n]*\{/.exec(chunks[j])) { + i += match[0].length - 1; + selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; + } else { + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url)) && + $(';')) { + return new(tree.Import)(path, imports); + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import'])) { + return value; + } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-)?keyframes/)) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (typeof(window) !== 'undefined') { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (path.charAt(0) !== '/' && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); + }; +} + +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math.round(number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math.round(n); + } else { + throw { + error: "RuntimeError", + message: "math functions take numbers as parameters" + }; + } + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('less/tree')); +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args, index) { + this.name = name; + this.args = args; + this.index = index; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + try { + return tree.functions[this.name].apply(tree.functions, args); + } catch (e) { + throw { message: "error evaluating function `" + this.name + "`", + index: this.index }; + } + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('less/tree')); +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else if (rgb.length == 8) { + this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; + this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + } +}; + + +})(require('less/tree')); +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Directive = function (name, value) { + this.name = name; + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + if (this.ruleset) { + this.ruleset.root = true; + return this.name + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Element = function (combinator, value) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + this.value = value ? value.trim() : ""; +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + this.value; +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else if (value === '& ') { + this.value = '& '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + '& ' : ' ', + ':' : ' :', + '::': '::', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('less/tree')); +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return this; + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(' '); + } +}; + +})(require('less/tree')); +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports) { + var that = this; + + this._path = path; + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (root) { + if (! root) { + throw new(Error)("Error parsing " + that.path); + } + that.root = root; + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function () { + if (this.css) { + return "@import " + this._path.toCSS() + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset; + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return ruleset.rules; + } + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + eval: function (env) { + var result, + that = this, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); + }); + + try { + expression = new(Function)('return (' + expression + ')'); + } catch (e) { + throw { message: "JavaScript evaluation error: `" + expression + "`" , + index: this.index }; + } + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + result = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + if (typeof(result) === 'string') { + return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); + } else if (Array.isArray(result)) { + return new(tree.Anonymous)(result.join(', ')); + } else { + return new(tree.Anonymous)(result); + } + } +}; + +})(require('less/tree')); + +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value } +}; + +})(require('less/tree')); +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, args, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(args, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments).rules); + match = true; + } catch (e) { + throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; + } + } + } + if (match) { + return rules; + } else { + throw { message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index }; + } + } + } + throw { message: this.selector.toCSS().trim() + " is undefined", + index: this.index }; + } +}; + +tree.mixin.Definition = function (name, params, rules) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + eval: function (env, args) { + var frame = new(tree.Ruleset)(null, []), context, _arguments = []; + + for (var i = 0, val; i < this.params.length; i++) { + if (this.params[i].name) { + if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); + } else { + throw { message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); + + return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len; + + if (argsLength < this.required) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + var that = this; + var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, that.index, true).eval(env).value; + }).replace(/@\{([\w-]+)\}/g, function (_, name) { + var v = new(tree.Variable)('@' + name, that.index).eval(env); + return v.value || v.toCSS(); + }); + return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Rule = function (name, value, important, index) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + ";"; + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Ruleset = function (selectors, rules) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); + + ruleset.root = this.root; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > 1) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + this.joinSelectors( paths, context, this.selectors ); + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + }, + + joinSelectors: function (paths, context, selectors) { + for (var s = 0; s < selectors.length; s++) { + this.joinSelector(paths, context, selectors[s]); + } + }, + + joinSelector: function (paths, context, selector) { + var before = [], after = [], beforeElements = [], + afterElements = [], hasParentSelector = false, el; + + for (var i = 0; i < selector.elements.length; i++) { + el = selector.elements[i]; + if (el.combinator.value[0] === '&') { + hasParentSelector = true; + } + if (hasParentSelector) afterElements.push(el); + else beforeElements.push(el); + } + + if (! hasParentSelector) { + afterElements = beforeElements; + beforeElements = []; + } + + if (beforeElements.length > 0) { + before.push(new(tree.Selector)(beforeElements)); + } + + if (afterElements.length > 0) { + after.push(new(tree.Selector)(afterElements)); + } + + for (var c = 0; c < context.length; c++) { + paths.push(before.concat(context[c]).concat(after)); + } + } +}; +})(require('less/tree')); +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + if (this.elements[0].value === other.elements[0].value) { + return true; + } else { + return false; + } +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('less/tree')); +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Variable = function (name, index) { this.name = name, this.index = index }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { message: "variable " + name + " is undefined", + index: this.index }; + } + } +}; + +})(require('less/tree')); +require('less/tree').find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +require('less/tree').jsify = function (obj) { + if (Array.isArray(obj.value) && (obj.value.length > 1)) { + return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; + } else { + return obj.toCSS(false); + } +}; +// +// browser.js - client-side engine +// + +var isFileProtocol = (location.protocol === 'file:' || + location.protocol === 'chrome:' || + location.protocol === 'chrome-extension:' || + location.protocol === 'resource:'); + +less.env = less.env || (location.hostname == '127.0.0.1' || + location.hostname == '0.0.0.0' || + location.hostname == 'localhost' || + location.port.length > 0 || + isFileProtocol ? 'development' + : 'production'); + +// Load styles asynchronously (default: false) +// +// This is set to `false` by default, so that the body +// doesn't start loading before the stylesheets are parsed. +// Setting this to `true` can result in flickering. +// +less.async = false; + +// Interval between watch polls +less.poll = less.poll || (isFileProtocol ? 1000 : 1500); + +// +// Watch mode +// +less.watch = function () { return this.watchMode = true }; +less.unwatch = function () { return this.watchMode = false }; + +if (less.env === 'development') { + less.optimization = 0; + + if (/!watch/.test(location.hash)) { + less.watch(); + } + less.watchTimer = setInterval(function () { + if (less.watchMode) { + loadStyleSheets(function (root, sheet, env) { + if (root) { + createCSS(root.toCSS(), sheet, env.lastModified); + } + }); + } + }, less.poll); +} else { + less.optimization = 3; +} + +var cache; + +try { + cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; +} catch (_) { + cache = null; +} + +// +// Get all tags with the 'rel' attribute set to "stylesheet/less" +// +var links = document.getElementsByTagName('link'); +var typePattern = /^text\/(x-)?less$/; + +less.sheets = []; + +for (var i = 0; i < links.length; i++) { + if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && + (links[i].type.match(typePattern)))) { + less.sheets.push(links[i]); + } +} + + +less.refresh = function (reload) { + var startTime, endTime; + startTime = endTime = new(Date); + + loadStyleSheets(function (root, sheet, env) { + if (env.local) { + log("loading " + sheet.href + " from cache."); + } else { + log("parsed " + sheet.href + " successfully."); + createCSS(root.toCSS(), sheet, env.lastModified); + } + log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); + (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); + endTime = new(Date); + }, reload); + + loadStyles(); +}; +less.refreshStyles = loadStyles; + +less.refresh(less.env === 'development'); + +function loadStyles() { + var styles = document.getElementsByTagName('style'); + for (var i = 0; i < styles.length; i++) { + if (styles[i].type.match(typePattern)) { + new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { + styles[i].type = 'text/css'; + styles[i].innerHTML = tree.toCSS(); + }); + } + } +} + +function loadStyleSheets(callback, reload) { + for (var i = 0; i < less.sheets.length; i++) { + loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); + } +} + +function loadStyleSheet(sheet, callback, reload, remaining) { + var url = window.location.href.replace(/[#?].*$/, ''); + var href = sheet.href.replace(/\?.*$/, ''); + var css = cache && cache.getItem(href); + var timestamp = cache && cache.getItem(href + ':timestamp'); + var styles = { css: css, timestamp: timestamp }; + + // Stylesheets in IE don't always return the full path + if (! /^(https?|file):/.test(href)) { + if (href.charAt(0) == "/") { + href = window.location.protocol + "//" + window.location.host + href; + } else { + href = url.slice(0, url.lastIndexOf('/') + 1) + href; + } + } + + xhr(sheet.href, sheet.type, function (data, lastModified) { + if (!reload && styles && lastModified && + (new(Date)(lastModified).valueOf() === + new(Date)(styles.timestamp).valueOf())) { + // Use local copy + createCSS(styles.css, sheet); + callback(null, sheet, { local: true, remaining: remaining }); + } else { + // Use remote copy (re-parse) + try { + new(less.Parser)({ + optimization: less.optimization, + paths: [href.replace(/[\w\.-]+$/, '')], + mime: sheet.type + }).parse(data, function (e, root) { + if (e) { return error(e, href) } + try { + callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); + removeNode(document.getElementById('less-error-message:' + extractId(href))); + } catch (e) { + error(e, href); + } + }); + } catch (e) { + error(e, href); + } + } + }, function (status, url) { + throw new(Error)("Couldn't load " + url + " (" + status + ")"); + }); +} + +function extractId(href) { + return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain + .replace(/^\//, '' ) // Remove root / + .replace(/\?.*$/, '' ) // Remove query + .replace(/\.[^\.\/]+$/, '' ) // Remove file extension + .replace(/[^\.\w-]+/g, '-') // Replace illegal characters + .replace(/\./g, ':'); // Replace dots with colons(for valid id) +} + +function createCSS(styles, sheet, lastModified) { + var css; + + // Strip the query-string + var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; + + // If there is no title set, use the filename, minus the extension + var id = 'less:' + (sheet.title || extractId(href)); + + // If the stylesheet doesn't exist, create a new node + if ((css = document.getElementById(id)) === null) { + css = document.createElement('style'); + css.type = 'text/css'; + css.media = sheet.media || 'screen'; + css.id = id; + document.getElementsByTagName('head')[0].appendChild(css); + } + + if (css.styleSheet) { // IE + try { + css.styleSheet.cssText = styles; + } catch (e) { + throw new(Error)("Couldn't reassign styleSheet.cssText."); + } + } else { + (function (node) { + if (css.childNodes.length > 0) { + if (css.firstChild.nodeValue !== node.nodeValue) { + css.replaceChild(node, css.firstChild); + } + } else { + css.appendChild(node); + } + })(document.createTextNode(styles)); + } + + // Don't update the local store if the file wasn't modified + if (lastModified && cache) { + log('saving ' + href + ' to cache.'); + cache.setItem(href, styles); + cache.setItem(href + ':timestamp', lastModified); + } +} + +function xhr(url, type, callback, errback) { + var xhr = getXMLHttpRequest(); + var async = isFileProtocol ? false : less.async; + + if (typeof(xhr.overrideMimeType) === 'function') { + xhr.overrideMimeType('text/css'); + } + xhr.open('GET', url, async); + xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); + xhr.send(null); + + if (isFileProtocol) { + if (xhr.status === 0) { + callback(xhr.responseText); + } else { + errback(xhr.status, url); + } + } else if (async) { + xhr.onreadystatechange = function () { + if (xhr.readyState == 4) { + handleResponse(xhr, callback, errback); + } + }; + } else { + handleResponse(xhr, callback, errback); + } + + function handleResponse(xhr, callback, errback) { + if (xhr.status >= 200 && xhr.status < 300) { + callback(xhr.responseText, + xhr.getResponseHeader("Last-Modified")); + } else if (typeof(errback) === 'function') { + errback(xhr.status, url); + } + } +} + +function getXMLHttpRequest() { + if (window.XMLHttpRequest) { + return new(XMLHttpRequest); + } else { + try { + return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); + } catch (e) { + log("browser doesn't support AJAX."); + return null; + } + } +} + +function removeNode(node) { + return node && node.parentNode.removeChild(node); +} + +function log(str) { + if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } +} + +function error(e, href) { + var id = 'less-error-message:' + extractId(href); + + var template = ['
    ', + '
  • {0}
    • ', + '
  • {current}
    • ', + '
  • {2}
    • ', + '
'].join('\n'); + + var elem = document.createElement('div'), timer, content; + + elem.id = id; + elem.className = "less-error-message"; + + content = '

' + (e.message || 'There is an error in your .less file') + + '

' + '

' + href + " "; + + if (e.extract) { + content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

' + + template.replace(/\[(-?\d)\]/g, function (_, i) { + return (parseInt(e.line) + parseInt(i)) || ''; + }).replace(/\{(\d)\}/g, function (_, i) { + return e.extract[parseInt(i)] || ''; + }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '' + + e.extract[1].slice(e.column) + ''); + } + elem.innerHTML = content; + + // CSS for error messages + createCSS([ + '.less-error-message ul, .less-error-message li {', + 'list-style-type: none;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'margin: 0;', + '}', + '.less-error-message label {', + 'font-size: 12px;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'color: #cc7777;', + '}', + '.less-error-message pre {', + 'color: #ee4444;', + 'padding: 4px 0;', + 'margin: 0;', + 'display: inline-block;', + '}', + '.less-error-message pre.ctx {', + 'color: #dd4444;', + '}', + '.less-error-message h3 {', + 'font-size: 20px;', + 'font-weight: bold;', + 'padding: 15px 0 5px 0;', + 'margin: 0;', + '}', + '.less-error-message a {', + 'color: #10a', + '}', + '.less-error-message .error {', + 'color: red;', + 'font-weight: bold;', + 'padding-bottom: 2px;', + 'border-bottom: 1px dashed red;', + '}' + ].join('\n'), { title: 'error-message' }); + + elem.style.cssText = [ + "font-family: Arial, sans-serif", + "border: 1px solid #e00", + "background-color: #eee", + "border-radius: 5px", + "-webkit-border-radius: 5px", + "-moz-border-radius: 5px", + "color: #e00", + "padding: 15px", + "margin-bottom: 15px" + ].join(';'); + + if (less.env == 'development') { + timer = setInterval(function () { + if (document.body) { + if (document.getElementById(id)) { + document.body.replaceChild(elem, document.getElementById(id)); + } else { + document.body.insertBefore(elem, document.body.firstChild); + } + clearInterval(timer); + } + }, 10); + } +} + +})(window); diff --git a/node_modules/less-brunch/node_modules/less/dist/less-1.1.4.min.js b/node_modules/less-brunch/node_modules/less/dist/less-1.1.4.min.js new file mode 100644 index 0000000..182b526 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/dist/less-1.1.4.min.js @@ -0,0 +1,16 @@ +// +// LESS - Leaner CSS v1.1.4 +// http://lesscss.org +// +// Copyright (c) 2009-2011, Alexis Sellier +// Licensed under the Apache 2.0 License. +// +// +// LESS - Leaner CSS v1.1.4 +// http://lesscss.org +// +// Copyright (c) 2009-2011, Alexis Sellier +// Licensed under the Apache 2.0 License. +// +(function(a,b){function u(a,b){var c="less-error-message:"+o(b),e=["
    ",'
  • {0}
    • ',"
  • {current}
    • ",'
  • {2}
    • ',"
"].join("\n"),f=document.createElement("div"),g,h;f.id=c,f.className="less-error-message",h="

"+(a.message||"There is an error in your .less file")+"

"+'

'+b+" ",a.extract&&(h+="on line "+a.line+", column "+(a.column+1)+":

"+e.replace(/\[(-?\d)\]/g,function(b,c){return parseInt(a.line)+parseInt(c)||""}).replace(/\{(\d)\}/g,function(b,c){return a.extract[parseInt(c)]||""}).replace(/\{current\}/,a.extract[1].slice(0,a.column)+''+a.extract[1].slice(a.column)+"")),f.innerHTML=h,p([".less-error-message ul, .less-error-message li {","list-style-type: none;","margin-right: 15px;","padding: 4px 0;","margin: 0;","}",".less-error-message label {","font-size: 12px;","margin-right: 15px;","padding: 4px 0;","color: #cc7777;","}",".less-error-message pre {","color: #ee4444;","padding: 4px 0;","margin: 0;","display: inline-block;","}",".less-error-message pre.ctx {","color: #dd4444;","}",".less-error-message h3 {","font-size: 20px;","font-weight: bold;","padding: 15px 0 5px 0;","margin: 0;","}",".less-error-message a {","color: #10a","}",".less-error-message .error {","color: red;","font-weight: bold;","padding-bottom: 2px;","border-bottom: 1px dashed 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+.mime+this.attrs.charset+this.attrs.base64+this.attrs.data:this.value.toCSS())+")"},eval:function(a){return this.attrs?this:new b.URL(this.value.eval(a),this.paths)}}}(c("less/tree")),function(a){a.Value=function(a){this.value=a,this.is="value"},a.Value.prototype={eval:function(b){return this.value.length===1?this.value[0].eval(b):new a.Value(this.value.map(function(a){return a.eval(b)}))},toCSS:function(a){return this.value.map(function(b){return b.toCSS(a)}).join(a.compress?",":", ")}}}(c("less/tree")),function(a){a.Variable=function(a,b){this.name=a,this.index=b},a.Variable.prototype={eval:function(b){var c,d,e=this.name;e.indexOf("@@")==0&&(e="@"+(new a.Variable(e.slice(1))).eval(b).value);if(c=a.find(b.frames,function(a){if(d=a.variable(e))return d.value.eval(b)}))return c;throw{message:"variable "+e+" is undefined",index:this.index}}}}(c("less/tree")),c("less/tree").find=function(a,b){for(var c=0,d;c1?"["+a.value.map(function(a){return a.toCSS(!1)}).join(", ")+"]":a.toCSS(!1)};var f=location.protocol==="file:"||location.protocol==="chrome:"||location.protocol==="chrome-extension:"||location.protocol==="resource:";d.env=d.env||(location.hostname=="127.0.0.1"||location.hostname=="0.0.0.0"||location.hostname=="localhost"||location.port.length>0||f?"development":"production"),d.async=!1,d.poll=d.poll||(f?1e3:1500),d.watch=function(){return this.watchMode=!0},d.unwatch=function(){return this.watchMode=!1},d.env==="development"?(d.optimization=0,/!watch/.test(location.hash)&&d.watch(),d.watchTimer=setInterval(function(){d.watchMode&&m(function(a,b,c){a&&p(a.toCSS(),b,c.lastModified)})},d.poll)):d.optimization=3;var g;try{g=typeof a.localStorage=="undefined"?null:a.localStorage}catch(h){g=null}var i=document.getElementsByTagName("link"),j=/^text\/(x-)?less$/;d.sheets=[];for(var k=0;k>> 0; + for (var i = 0; i < len; i++) { + if (i in this) { + block.call(thisObject, this[i], i, this); + } + } + }; +} +if (!Array.prototype.map) { + Array.prototype.map = function(fun /*, thisp*/) { + var len = this.length >>> 0; + var res = new Array(len); + var thisp = arguments[1]; + + for (var i = 0; i < len; i++) { + if (i in this) { + res[i] = fun.call(thisp, this[i], i, this); + } + } + return res; + }; +} +if (!Array.prototype.filter) { + Array.prototype.filter = function (block /*, thisp */) { + var values = []; + var thisp = arguments[1]; + for (var i = 0; i < this.length; i++) { + if (block.call(thisp, this[i])) { + values.push(this[i]); + } + } + return values; + }; +} +if (!Array.prototype.reduce) { + Array.prototype.reduce = function(fun /*, initial*/) { + var len = this.length >>> 0; + var i = 0; + + // no value to return if no initial value and an empty array + if (len === 0 && arguments.length === 1) throw new TypeError(); + + if (arguments.length >= 2) { + var rv = arguments[1]; + } else { + do { + if (i in this) { + rv = this[i++]; + break; + } + // if array contains no values, no initial value to return + if (++i >= len) throw new TypeError(); + } while (true); + } + for (; i < len; i++) { + if (i in this) { + rv = fun.call(null, rv, this[i], i, this); + } + } + return rv; + }; +} +if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (value /*, fromIndex */ ) { + var length = this.length; + var i = arguments[1] || 0; + + if (!length) return -1; + if (i >= length) return -1; + if (i < 0) i += length; + + for (; i < length; i++) { + if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } + if (value === this[i]) return i; + } + return -1; + }; +} + +// +// Object +// +if (!Object.keys) { + Object.keys = function (object) { + var keys = []; + for (var name in object) { + if (Object.prototype.hasOwnProperty.call(object, name)) { + keys.push(name); + } + } + return keys; + }; +} + +// +// String +// +if (!String.prototype.trim) { + String.prototype.trim = function () { + return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); + }; +} +var less, tree; + +if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { + // Rhino + // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 + less = {}; + tree = less.tree = {}; + less.mode = 'rhino'; +} else if (typeof(window) === 'undefined') { + // Node.js + less = exports, + tree = require('./tree'); + less.mode = 'node'; +} else { + // Browser + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; + less.mode = 'browser'; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + mime: env && env.mime, // MIME type of .less files + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (root) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + + callback(root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + chunks = []; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + level = 0, + match, + chunk = chunks[0], + inParam, + inString; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = i; + + if (!inString && !inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + if (c === '{' && !inString && !inParam) { level ++; + chunk.push(c); + } else if (c === '}' && !inString && !inParam) { level --; + chunk.push(c); + chunks[++j] = chunk = []; + } else if (c === '(' && !inString && !inParam) { + chunk.push(c); + inParam = true; + } else if (c === ')' && !inString && inParam) { + chunk.push(c); + inParam = false; + } else { + if (c === '"' || c === "'" || c === '`') { + if (! inString) { + inString = c; + } else { + inString = inString === c ? false : inString; + } + } + chunk.push(c); + } + } + if (level > 0) { + throw { + type: 'Syntax', + message: "Missing closing `}`", + filename: env.filename + }; + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = []; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + lines = input.split('\n'); + line = getLine(e.index); + + for (var n = e.index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + throw { + type: e.type, + message: e.message, + filename: env.filename, + index: e.index, + line: typeof(line) === 'number' ? line + 1 : null, + callLine: e.call && (getLine(e.call) + 1), + callExtract: lines[getLine(e.call)], + stack: e.stack, + column: column, + extract: [ + lines[line - 1], + lines[line], + lines[line + 1] + ] + }; + } + if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + + function getLine(index) { + return index ? (input.slice(0, index).match(/\n/g) || "").length : null; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + name: "ParseError", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { return new(tree.Keyword)(k) } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args, index = i; + + if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args, index) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + if (! $(')')) throw new(Error)("missing closing ) for url()"); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i); + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e, i)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args, index); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value; + + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + while (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + if (value = $(this.expression)) { + params.push({ name: param.name, value: value }); + } else { + throw new(Error)("Expected value"); + } + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + if (! $(',')) { break } + } + if (! $(')')) throw new(Error)("Expected )"); + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^\(opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + if (! $(')')) throw new(Error)("missing closing ) for alpha()"); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c; + + c = $(this.combinator); + e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || + $('*') || $(this.attribute) || $(/^\([^)@]+\)/); + + if (e) { return new(tree.Element)(c, e, i) } + + if (c.value && c.value.charAt(0) === '&') { + return new(tree.Element)(c, null, i); + } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === '&') { + match = '&'; + i++; + if(input.charAt(i) === ' ') { + match = '& '; + } + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(match); + } else if (c === ':' && input.charAt(i + 1) === ':') { + i += 2; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)('::'); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url)) && + $(';')) { + return new(tree.Import)(path, imports); + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import'])) { + return value; + } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-|-moz-)?keyframes/)) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (less.mode === 'browser' || less.mode === 'rhino') { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (path.charAt(0) !== '/' && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); + }; +} + +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fade: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a = amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math.round(number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math.round(n); + } else { + throw { + error: "RuntimeError", + message: "math functions take numbers as parameters" + }; + } + }, + argb: function (color) { + return new(tree.Anonymous)(color.toARGB()); + + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('./tree')); +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args, index) { + this.name = name; + this.args = args; + this.index = index; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + try { + return tree.functions[this.name].apply(tree.functions, args); + } catch (e) { + throw { message: "error evaluating function `" + this.name + "`", + index: this.index }; + } + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('../tree')); +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + }, + toARGB: function () { + var argb = [Math.round(this.alpha * 255)].concat(this.rgb); + return '#' + argb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } +}; + + +})(require('../tree')); +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Directive = function (name, value) { + this.name = name; + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + if (this.ruleset) { + this.ruleset.root = true; + return this.name + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('../tree')); +(function (tree) { + +tree.Element = function (combinator, value, index) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + this.value = value ? value.trim() : ""; + this.index = index; +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + this.value; +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else if (value === '& ') { + this.value = '& '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + '& ' : ' ', + ':' : ' :', + '::': '::', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('../tree')); +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return this; + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(' '); + } +}; + +})(require('../tree')); +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports) { + var that = this; + + this._path = path; + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css(\?.*)?$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (root) { + if (! root) { + throw new(Error)("Error parsing " + that.path); + } + that.root = root; + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function () { + if (this.css) { + return "@import " + this._path.toCSS() + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset; + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return ruleset.rules; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + eval: function (env) { + var result, + that = this, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); + }); + + try { + expression = new(Function)('return (' + expression + ')'); + } catch (e) { + throw { message: "JavaScript evaluation error: `" + expression + "`" , + index: this.index }; + } + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + result = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + if (typeof(result) === 'string') { + return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); + } else if (Array.isArray(result)) { + return new(tree.Anonymous)(result.join(', ')); + } else { + return new(tree.Anonymous)(result); + } + } +}; + +})(require('../tree')); + +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value } +}; + +})(require('../tree')); +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, args, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(args, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments).rules); + match = true; + } catch (e) { + throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; + } + } + } + if (match) { + return rules; + } else { + throw { message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index }; + } + } + } + throw { message: this.selector.toCSS().trim() + " is undefined", + index: this.index }; + } +}; + +tree.mixin.Definition = function (name, params, rules) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + eval: function (env, args) { + var frame = new(tree.Ruleset)(null, []), context, _arguments = []; + + for (var i = 0, val; i < this.params.length; i++) { + if (this.params[i].name) { + if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); + } else { + throw { message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); + + return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len; + + if (argsLength < this.required) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + var that = this; + var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, that.index, true).eval(env).value; + }).replace(/@\{([\w-]+)\}/g, function (_, name) { + var v = new(tree.Variable)('@' + name, that.index).eval(env); + return v.value || v.toCSS(); + }); + return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Rule = function (name, value, important, index) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + ";"; + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Ruleset = function (selectors, rules) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); + + ruleset.root = this.root; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > rule.selectors[j].elements.length) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + this.joinSelectors( paths, context, this.selectors ); + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + }, + + joinSelectors: function (paths, context, selectors) { + for (var s = 0; s < selectors.length; s++) { + this.joinSelector(paths, context, selectors[s]); + } + }, + + joinSelector: function (paths, context, selector) { + var before = [], after = [], beforeElements = [], + afterElements = [], hasParentSelector = false, el; + + for (var i = 0; i < selector.elements.length; i++) { + el = selector.elements[i]; + if (el.combinator.value.charAt(0) === '&') { + hasParentSelector = true; + } + if (hasParentSelector) afterElements.push(el); + else beforeElements.push(el); + } + + if (! hasParentSelector) { + afterElements = beforeElements; + beforeElements = []; + } + + if (beforeElements.length > 0) { + before.push(new(tree.Selector)(beforeElements)); + } + + if (afterElements.length > 0) { + after.push(new(tree.Selector)(afterElements)); + } + + for (var c = 0; c < context.length; c++) { + paths.push(before.concat(context[c]).concat(after)); + } + } +}; +})(require('../tree')); +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + var len = this.elements.length, + olen = other.elements.length, + max = Math.min(len, olen); + + if (len < olen) { + return false; + } else { + for (var i = 0; i < max; i++) { + if (this.elements[i].value !== other.elements[i].value) { + return false; + } + } + } + return true; +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('../tree')); +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (less.mode === 'browser' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Variable = function (name, index) { this.name = name, this.index = index }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { message: "variable " + name + " is undefined", + index: this.index }; + } + } +}; + +})(require('../tree')); +require('./tree').find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +require('./tree').jsify = function (obj) { + if (Array.isArray(obj.value) && (obj.value.length > 1)) { + return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; + } else { + return obj.toCSS(false); + } +}; +// +// browser.js - client-side engine +// + +var isFileProtocol = (location.protocol === 'file:' || + location.protocol === 'chrome:' || + location.protocol === 'chrome-extension:' || + location.protocol === 'resource:'); + +less.env = less.env || (location.hostname == '127.0.0.1' || + location.hostname == '0.0.0.0' || + location.hostname == 'localhost' || + location.port.length > 0 || + isFileProtocol ? 'development' + : 'production'); + +// Load styles asynchronously (default: false) +// +// This is set to `false` by default, so that the body +// doesn't start loading before the stylesheets are parsed. +// Setting this to `true` can result in flickering. +// +less.async = false; + +// Interval between watch polls +less.poll = less.poll || (isFileProtocol ? 1000 : 1500); + +// +// Watch mode +// +less.watch = function () { return this.watchMode = true }; +less.unwatch = function () { return this.watchMode = false }; + +if (less.env === 'development') { + less.optimization = 0; + + if (/!watch/.test(location.hash)) { + less.watch(); + } + less.watchTimer = setInterval(function () { + if (less.watchMode) { + loadStyleSheets(function (root, sheet, env) { + if (root) { + createCSS(root.toCSS(), sheet, env.lastModified); + } + }); + } + }, less.poll); +} else { + less.optimization = 3; +} + +var cache; + +try { + cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; +} catch (_) { + cache = null; +} + +// +// Get all tags with the 'rel' attribute set to "stylesheet/less" +// +var links = document.getElementsByTagName('link'); +var typePattern = /^text\/(x-)?less$/; + +less.sheets = []; + +for (var i = 0; i < links.length; i++) { + if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && + (links[i].type.match(typePattern)))) { + less.sheets.push(links[i]); + } +} + + +less.refresh = function (reload) { + var startTime, endTime; + startTime = endTime = new(Date); + + loadStyleSheets(function (root, sheet, env) { + if (env.local) { + log("loading " + sheet.href + " from cache."); + } else { + log("parsed " + sheet.href + " successfully."); + createCSS(root.toCSS(), sheet, env.lastModified); + } + log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); + (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); + endTime = new(Date); + }, reload); + + loadStyles(); +}; +less.refreshStyles = loadStyles; + +less.refresh(less.env === 'development'); + +function loadStyles() { + var styles = document.getElementsByTagName('style'); + for (var i = 0; i < styles.length; i++) { + if (styles[i].type.match(typePattern)) { + new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { + var css = tree.toCSS(); + var style = styles[i]; + try { + style.innerHTML = css; + } catch (_) { + style.styleSheets.cssText = css; + } + style.type = 'text/css'; + }); + } + } +} + +function loadStyleSheets(callback, reload) { + for (var i = 0; i < less.sheets.length; i++) { + loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); + } +} + +function loadStyleSheet(sheet, callback, reload, remaining) { + var url = window.location.href.replace(/[#?].*$/, ''); + var href = sheet.href.replace(/\?.*$/, ''); + var css = cache && cache.getItem(href); + var timestamp = cache && cache.getItem(href + ':timestamp'); + var styles = { css: css, timestamp: timestamp }; + + // Stylesheets in IE don't always return the full path + if (! /^(https?|file):/.test(href)) { + if (href.charAt(0) == "/") { + href = window.location.protocol + "//" + window.location.host + href; + } else { + href = url.slice(0, url.lastIndexOf('/') + 1) + href; + } + } + + xhr(sheet.href, sheet.type, function (data, lastModified) { + if (!reload && styles && lastModified && + (new(Date)(lastModified).valueOf() === + new(Date)(styles.timestamp).valueOf())) { + // Use local copy + createCSS(styles.css, sheet); + callback(null, sheet, { local: true, remaining: remaining }); + } else { + // Use remote copy (re-parse) + try { + new(less.Parser)({ + optimization: less.optimization, + paths: [href.replace(/[\w\.-]+$/, '')], + mime: sheet.type + }).parse(data, function (e, root) { + if (e) { return error(e, href) } + try { + callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); + removeNode(document.getElementById('less-error-message:' + extractId(href))); + } catch (e) { + error(e, href); + } + }); + } catch (e) { + error(e, href); + } + } + }, function (status, url) { + throw new(Error)("Couldn't load " + url + " (" + status + ")"); + }); +} + +function extractId(href) { + return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain + .replace(/^\//, '' ) // Remove root / + .replace(/\?.*$/, '' ) // Remove query + .replace(/\.[^\.\/]+$/, '' ) // Remove file extension + .replace(/[^\.\w-]+/g, '-') // Replace illegal characters + .replace(/\./g, ':'); // Replace dots with colons(for valid id) +} + +function createCSS(styles, sheet, lastModified) { + var css; + + // Strip the query-string + var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; + + // If there is no title set, use the filename, minus the extension + var id = 'less:' + (sheet.title || extractId(href)); + + // If the stylesheet doesn't exist, create a new node + if ((css = document.getElementById(id)) === null) { + css = document.createElement('style'); + css.type = 'text/css'; + css.media = sheet.media || 'screen'; + css.id = id; + document.getElementsByTagName('head')[0].appendChild(css); + } + + if (css.styleSheet) { // IE + try { + css.styleSheet.cssText = styles; + } catch (e) { + throw new(Error)("Couldn't reassign styleSheet.cssText."); + } + } else { + (function (node) { + if (css.childNodes.length > 0) { + if (css.firstChild.nodeValue !== node.nodeValue) { + css.replaceChild(node, css.firstChild); + } + } else { + css.appendChild(node); + } + })(document.createTextNode(styles)); + } + + // Don't update the local store if the file wasn't modified + if (lastModified && cache) { + log('saving ' + href + ' to cache.'); + cache.setItem(href, styles); + cache.setItem(href + ':timestamp', lastModified); + } +} + +function xhr(url, type, callback, errback) { + var xhr = getXMLHttpRequest(); + var async = isFileProtocol ? false : less.async; + + if (typeof(xhr.overrideMimeType) === 'function') { + xhr.overrideMimeType('text/css'); + } + xhr.open('GET', url, async); + xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); + xhr.send(null); + + if (isFileProtocol) { + if (xhr.status === 0) { + callback(xhr.responseText); + } else { + errback(xhr.status, url); + } + } else if (async) { + xhr.onreadystatechange = function () { + if (xhr.readyState == 4) { + handleResponse(xhr, callback, errback); + } + }; + } else { + handleResponse(xhr, callback, errback); + } + + function handleResponse(xhr, callback, errback) { + if (xhr.status >= 200 && xhr.status < 300) { + callback(xhr.responseText, + xhr.getResponseHeader("Last-Modified")); + } else if (typeof(errback) === 'function') { + errback(xhr.status, url); + } + } +} + +function getXMLHttpRequest() { + if (window.XMLHttpRequest) { + return new(XMLHttpRequest); + } else { + try { + return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); + } catch (e) { + log("browser doesn't support AJAX."); + return null; + } + } +} + +function removeNode(node) { + return node && node.parentNode.removeChild(node); +} + +function log(str) { + if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } +} + +function error(e, href) { + var id = 'less-error-message:' + extractId(href); + + var template = ['
    ', + '
  • {0}
    • ', + '
  • {current}
    • ', + '
  • {2}
    • ', + '
'].join('\n'); + + var elem = document.createElement('div'), timer, content; + + elem.id = id; + elem.className = "less-error-message"; + + content = '

' + (e.message || 'There is an error in your .less file') + + '

' + '

' + href + " "; + + if (e.extract) { + content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

' + + template.replace(/\[(-?\d)\]/g, function (_, i) { + return (parseInt(e.line) + parseInt(i)) || ''; + }).replace(/\{(\d)\}/g, function (_, i) { + return e.extract[parseInt(i)] || ''; + }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '' + + e.extract[1].slice(e.column) + ''); + } + elem.innerHTML = content; + + // CSS for error messages + createCSS([ + '.less-error-message ul, .less-error-message li {', + 'list-style-type: none;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'margin: 0;', + '}', + '.less-error-message label {', + 'font-size: 12px;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'color: #cc7777;', + '}', + '.less-error-message pre {', + 'color: #ee4444;', + 'padding: 4px 0;', + 'margin: 0;', + 'display: inline-block;', + '}', + '.less-error-message pre.ctx {', + 'color: #dd4444;', + '}', + '.less-error-message h3 {', + 'font-size: 20px;', + 'font-weight: bold;', + 'padding: 15px 0 5px 0;', + 'margin: 0;', + '}', + '.less-error-message a {', + 'color: #10a', + '}', + '.less-error-message .error {', + 'color: red;', + 'font-weight: bold;', + 'padding-bottom: 2px;', + 'border-bottom: 1px dashed red;', + '}' + ].join('\n'), { title: 'error-message' }); + + elem.style.cssText = [ + "font-family: Arial, sans-serif", + "border: 1px solid #e00", + "background-color: #eee", + "border-radius: 5px", + "-webkit-border-radius: 5px", + "-moz-border-radius: 5px", + "color: #e00", + "padding: 15px", + "margin-bottom: 15px" + ].join(';'); + + if (less.env == 'development') { + timer = setInterval(function () { + if (document.body) { + if (document.getElementById(id)) { + document.body.replaceChild(elem, document.getElementById(id)); + } else { + document.body.insertBefore(elem, document.body.firstChild); + } + clearInterval(timer); + } + }, 10); + } +} + +})(window); diff --git a/node_modules/less-brunch/node_modules/less/dist/less-1.1.5.min.js b/node_modules/less-brunch/node_modules/less/dist/less-1.1.5.min.js new file mode 100644 index 0000000..49949fb --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/dist/less-1.1.5.min.js @@ -0,0 +1,9 @@ +// +// LESS - Leaner CSS v1.1.5 +// http://lesscss.org +// +// Copyright (c) 2009-2011, Alexis Sellier +// Licensed under the Apache 2.0 License. +// +(function(a,b){function c(b){return a.less[b.split("/")[1]]}function l(){var a=document.getElementsByTagName("style");for(var b=0;b0?d.firstChild.nodeValue!==a.nodeValue&&d.replaceChild(a,d.firstChild):d.appendChild(a)})(document.createTextNode(a));c&&g&&(t("saving "+e+" to cache."),g.setItem(e,a),g.setItem(e+":timestamp",c))}function q(a,b,c,e){function i(b,c,d){b.status>=200&&b.status<300?c(b.responseText,b.getResponseHeader("Last-Modified")):typeof d=="function"&&d(b.status,a)}var g=r(),h=f?!1:d.async;typeof g.overrideMimeType=="function"&&g.overrideMimeType("text/css"),g.open("GET",a,h),g.setRequestHeader("Accept",b||"text/x-less, text/css; q=0.9, */*; q=0.5"),g.send(null),f?g.status===0?c(g.responseText):e(g.status,a):h?g.onreadystatechange=function(){g.readyState==4&&i(g,c,e)}:i(g,c,e)}function r(){if(a.XMLHttpRequest)return new XMLHttpRequest;try{return new ActiveXObject("MSXML2.XMLHTTP.3.0")}catch(b){return t("browser doesn't support AJAX."),null}}function s(a){return a&&a.parentNode.removeChild(a)}function t(a){d.env=="development"&&typeof console!="undefined"&&console.log("less: "+a)}function u(a,b){var c="less-error-message:"+o(b),e=["
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  • {current}
    • ",'
  • {2}
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"+(a.message||"There is an error in your .less file")+"

"+'

'+b+" ",a.extract&&(h+="on line "+a.line+", column "+(a.column+1)+":

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(var i = 0; i < len; i++) { + if (i in this) { + block.call(thisObject, this[i], i, this); + } + } + }; +} +if (!Array.prototype.map) { + Array.prototype.map = function(fun /*, thisp*/) { + var len = this.length >>> 0; + var res = new Array(len); + var thisp = arguments[1]; + + for (var i = 0; i < len; i++) { + if (i in this) { + res[i] = fun.call(thisp, this[i], i, this); + } + } + return res; + }; +} +if (!Array.prototype.filter) { + Array.prototype.filter = function (block /*, thisp */) { + var values = []; + var thisp = arguments[1]; + for (var i = 0; i < this.length; i++) { + if (block.call(thisp, this[i])) { + values.push(this[i]); + } + } + return values; + }; +} +if (!Array.prototype.reduce) { + Array.prototype.reduce = function(fun /*, initial*/) { + var len = this.length >>> 0; + var i = 0; + + // no value to return if no initial value and an empty array + if (len === 0 && arguments.length === 1) throw new TypeError(); + + if (arguments.length >= 2) { + var rv = arguments[1]; + } else { + do { + if (i in this) { + rv = this[i++]; + break; + } + // if array contains no values, no initial value to return + if (++i >= len) throw new TypeError(); + } while (true); + } + for (; i < len; i++) { + if (i in this) { + rv = fun.call(null, rv, this[i], i, this); + } + } + return rv; + }; +} +if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (value /*, fromIndex */ ) { + var length = this.length; + var i = arguments[1] || 0; + + if (!length) return -1; + if (i >= length) return -1; + if (i < 0) i += length; + + for (; i < length; i++) { + if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } + if (value === this[i]) return i; + } + return -1; + }; +} + +// +// Object +// +if (!Object.keys) { + Object.keys = function (object) { + var keys = []; + for (var name in object) { + if (Object.prototype.hasOwnProperty.call(object, name)) { + keys.push(name); + } + } + return keys; + }; +} + +// +// String +// +if (!String.prototype.trim) { + String.prototype.trim = function () { + return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); + }; +} +var less, tree; + +if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { + // Rhino + // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 + less = {}; + tree = less.tree = {}; + less.mode = 'rhino'; +} else if (typeof(window) === 'undefined') { + // Node.js + less = exports, + tree = require('./tree'); + less.mode = 'node'; +} else { + // Browser + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; + less.mode = 'browser'; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + mime: env && env.mime, // MIME type of .less files + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (root) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + + callback(root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + chunks = []; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + level = 0, + match, + chunk = chunks[0], + inParam, + inString; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = i; + + if (!inString && !inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + if (c === '{' && !inString && !inParam) { level ++; + chunk.push(c); + } else if (c === '}' && !inString && !inParam) { level --; + chunk.push(c); + chunks[++j] = chunk = []; + } else if (c === '(' && !inString && !inParam) { + chunk.push(c); + inParam = true; + } else if (c === ')' && !inString && inParam) { + chunk.push(c); + inParam = false; + } else { + if (c === '"' || c === "'" || c === '`') { + if (! inString) { + inString = c; + } else { + inString = inString === c ? false : inString; + } + } + chunk.push(c); + } + } + if (level > 0) { + throw { + type: 'Syntax', + message: "Missing closing `}`", + filename: env.filename + }; + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = []; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + lines = input.split('\n'); + line = getLine(e.index); + + for (var n = e.index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + throw { + type: e.type, + message: e.message, + filename: env.filename, + index: e.index, + line: typeof(line) === 'number' ? line + 1 : null, + callLine: e.call && (getLine(e.call) + 1), + callExtract: lines[getLine(e.call)], + stack: e.stack, + column: column, + extract: [ + lines[line - 1], + lines[line], + lines[line + 1] + ] + }; + } + if (options.yuicompress && less.mode === 'node') { + return require('./cssmin').compressor.cssmin(css); + } else if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + + function getLine(index) { + return index ? (input.slice(0, index).match(/\n/g) || "").length : null; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + name: "ParseError", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + + if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { + if (tree.colors.hasOwnProperty(k)) { + // detect named color + return new(tree.Color)(tree.colors[k].slice(1)); + } else { + return new(tree.Keyword)(k) + } + } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args, index = i; + + if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args, index) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.entities.assignment) || $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // Assignments are argument entities for calls. + // They are present in ie filter properties as shown below. + // + // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) + // + + assignment: function () { + var key, value; + if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { + return new(tree.Assignment)(key, value); + } + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + if (! $(')')) throw new(Error)("missing closing ) for url()"); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i); + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e, i)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args, index); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value; + + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + while (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + if (value = $(this.expression)) { + params.push({ name: param.name, value: value }); + } else { + throw new(Error)("Expected value"); + } + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + if (! $(',')) { break } + } + if (! $(')')) throw new(Error)("Expected )"); + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^\(opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + if (! $(')')) throw new(Error)("missing closing ) for alpha()"); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c; + + c = $(this.combinator); + e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || + $('*') || $(this.attribute) || $(/^\([^)@]+\)/); + + if (e) { return new(tree.Element)(c, e, i) } + + if (c.value && c.value.charAt(0) === '&') { + return new(tree.Element)(c, null, i); + } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === '&') { + match = '&'; + i++; + if(input.charAt(i) === ' ') { + match = '& '; + } + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(match); + } else if (c === ':' && input.charAt(i + 1) === ':') { + i += 2; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)('::'); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url)) && + $(';')) { + return new(tree.Import)(path, imports); + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import'])) { + return value; + } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/) || $('keyframes')) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (less.mode === 'browser' || less.mode === 'rhino') { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (path.charAt(0) !== '/' && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); + }; +} + +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fade: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a = amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + return this._math('round', n); + }, + ceil: function (n) { + return this._math('ceil', n); + }, + floor: function (n) { + return this._math('floor', n); + }, + _math: function (fn, n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math[fn](number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math[fn](n); + } else { + throw { + error: "RuntimeError", + message: "math functions take numbers as parameters" + }; + } + }, + argb: function (color) { + return new(tree.Anonymous)(color.toARGB()); + + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('./tree')); +(function (tree) { + tree.colors = { + 'aliceblue':'#f0f8ff', + 'antiquewhite':'#faebd7', + 'aqua':'#00ffff', + 'aquamarine':'#7fffd4', + 'azure':'#f0ffff', + 'beige':'#f5f5dc', + 'bisque':'#ffe4c4', + 'black':'#000000', + 'blanchedalmond':'#ffebcd', + 'blue':'#0000ff', + 'blueviolet':'#8a2be2', + 'brown':'#a52a2a', + 'burlywood':'#deb887', + 'cadetblue':'#5f9ea0', + 'chartreuse':'#7fff00', + 'chocolate':'#d2691e', + 'coral':'#ff7f50', + 'cornflowerblue':'#6495ed', + 'cornsilk':'#fff8dc', + 'crimson':'#dc143c', + 'cyan':'#00ffff', + 'darkblue':'#00008b', + 'darkcyan':'#008b8b', + 'darkgoldenrod':'#b8860b', + 'darkgray':'#a9a9a9', + 'darkgrey':'#a9a9a9', + 'darkgreen':'#006400', + 'darkkhaki':'#bdb76b', + 'darkmagenta':'#8b008b', + 'darkolivegreen':'#556b2f', + 'darkorange':'#ff8c00', + 'darkorchid':'#9932cc', + 'darkred':'#8b0000', + 'darksalmon':'#e9967a', + 'darkseagreen':'#8fbc8f', + 'darkslateblue':'#483d8b', + 'darkslategray':'#2f4f4f', + 'darkslategrey':'#2f4f4f', + 'darkturquoise':'#00ced1', + 'darkviolet':'#9400d3', + 'deeppink':'#ff1493', + 'deepskyblue':'#00bfff', + 'dimgray':'#696969', + 'dimgrey':'#696969', + 'dodgerblue':'#1e90ff', + 'firebrick':'#b22222', + 'floralwhite':'#fffaf0', + 'forestgreen':'#228b22', + 'fuchsia':'#ff00ff', + 'gainsboro':'#dcdcdc', + 'ghostwhite':'#f8f8ff', + 'gold':'#ffd700', + 'goldenrod':'#daa520', + 'gray':'#808080', + 'grey':'#808080', + 'green':'#008000', + 'greenyellow':'#adff2f', + 'honeydew':'#f0fff0', + 'hotpink':'#ff69b4', + 'indianred':'#cd5c5c', + 'indigo':'#4b0082', + 'ivory':'#fffff0', + 'khaki':'#f0e68c', + 'lavender':'#e6e6fa', + 'lavenderblush':'#fff0f5', + 'lawngreen':'#7cfc00', + 'lemonchiffon':'#fffacd', + 'lightblue':'#add8e6', + 'lightcoral':'#f08080', + 'lightcyan':'#e0ffff', + 'lightgoldenrodyellow':'#fafad2', + 'lightgray':'#d3d3d3', + 'lightgrey':'#d3d3d3', + 'lightgreen':'#90ee90', + 'lightpink':'#ffb6c1', + 'lightsalmon':'#ffa07a', + 'lightseagreen':'#20b2aa', + 'lightskyblue':'#87cefa', + 'lightslategray':'#778899', + 'lightslategrey':'#778899', + 'lightsteelblue':'#b0c4de', + 'lightyellow':'#ffffe0', + 'lime':'#00ff00', + 'limegreen':'#32cd32', + 'linen':'#faf0e6', + 'magenta':'#ff00ff', + 'maroon':'#800000', + 'mediumaquamarine':'#66cdaa', + 'mediumblue':'#0000cd', + 'mediumorchid':'#ba55d3', + 'mediumpurple':'#9370d8', + 'mediumseagreen':'#3cb371', + 'mediumslateblue':'#7b68ee', + 'mediumspringgreen':'#00fa9a', + 'mediumturquoise':'#48d1cc', + 'mediumvioletred':'#c71585', + 'midnightblue':'#191970', + 'mintcream':'#f5fffa', + 'mistyrose':'#ffe4e1', + 'moccasin':'#ffe4b5', + 'navajowhite':'#ffdead', + 'navy':'#000080', + 'oldlace':'#fdf5e6', + 'olive':'#808000', + 'olivedrab':'#6b8e23', + 'orange':'#ffa500', + 'orangered':'#ff4500', + 'orchid':'#da70d6', + 'palegoldenrod':'#eee8aa', + 'palegreen':'#98fb98', + 'paleturquoise':'#afeeee', + 'palevioletred':'#d87093', + 'papayawhip':'#ffefd5', + 'peachpuff':'#ffdab9', + 'peru':'#cd853f', + 'pink':'#ffc0cb', + 'plum':'#dda0dd', + 'powderblue':'#b0e0e6', + 'purple':'#800080', + 'red':'#ff0000', + 'rosybrown':'#bc8f8f', + 'royalblue':'#4169e1', + 'saddlebrown':'#8b4513', + 'salmon':'#fa8072', + 'sandybrown':'#f4a460', + 'seagreen':'#2e8b57', + 'seashell':'#fff5ee', + 'sienna':'#a0522d', + 'silver':'#c0c0c0', + 'skyblue':'#87ceeb', + 'slateblue':'#6a5acd', + 'slategray':'#708090', + 'slategrey':'#708090', + 'snow':'#fffafa', + 'springgreen':'#00ff7f', + 'steelblue':'#4682b4', + 'tan':'#d2b48c', + 'teal':'#008080', + 'thistle':'#d8bfd8', + 'tomato':'#ff6347', + 'turquoise':'#40e0d0', + 'violet':'#ee82ee', + 'wheat':'#f5deb3', + 'white':'#ffffff', + 'whitesmoke':'#f5f5f5', + 'yellow':'#ffff00', + 'yellowgreen':'#9acd32' + }; +})(require('./tree')); +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Assignment = function (key, val) { + this.key = key; + this.value = val; +}; +tree.Assignment.prototype = { + toCSS: function () { + return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree'));(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args, index) { + this.name = name; + this.args = args; + this.index = index; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + try { + return tree.functions[this.name].apply(tree.functions, args); + } catch (e) { + throw { message: "error evaluating function `" + this.name + "`", + index: this.index }; + } + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('../tree')); +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + }, + toARGB: function () { + var argb = [Math.round(this.alpha * 255)].concat(this.rgb); + return '#' + argb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } +}; + + +})(require('../tree')); +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Directive = function (name, value) { + this.name = name; + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + if (this.ruleset) { + this.ruleset.root = true; + return this.name + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('../tree')); +(function (tree) { + +tree.Element = function (combinator, value, index) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + this.value = value ? value.trim() : ""; + this.index = index; +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + this.value; +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else if (value === '& ') { + this.value = '& '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + '& ' : ' ', + ':' : ' :', + '::': '::', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('../tree')); +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return this; + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(' '); + } +}; + +})(require('../tree')); +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports) { + var that = this; + + this._path = path; + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css(\?.*)?$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (root) { + if (! root) { + throw new(Error)("Error parsing " + that.path); + } + that.root = root; + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function () { + if (this.css) { + return "@import " + this._path.toCSS() + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset; + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return ruleset.rules; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + eval: function (env) { + var result, + that = this, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); + }); + + try { + expression = new(Function)('return (' + expression + ')'); + } catch (e) { + throw { message: "JavaScript evaluation error: `" + expression + "`" , + index: this.index }; + } + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + result = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + if (typeof(result) === 'string') { + return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); + } else if (Array.isArray(result)) { + return new(tree.Anonymous)(result.join(', ')); + } else { + return new(tree.Anonymous)(result); + } + } +}; + +})(require('../tree')); + +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value } +}; + +})(require('../tree')); +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, args, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(args, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments).rules); + match = true; + } catch (e) { + throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; + } + } + } + if (match) { + return rules; + } else { + throw { message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index }; + } + } + } + throw { message: this.selector.toCSS().trim() + " is undefined", + index: this.index }; + } +}; + +tree.mixin.Definition = function (name, params, rules) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + eval: function (env, args) { + var frame = new(tree.Ruleset)(null, []), context, _arguments = []; + + for (var i = 0, val; i < this.params.length; i++) { + if (this.params[i].name) { + if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); + } else { + throw { message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); + + return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len; + + if (argsLength < this.required) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + var that = this; + var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, that.index, true).eval(env).value; + }).replace(/@\{([\w-]+)\}/g, function (_, name) { + var v = new(tree.Variable)('@' + name, that.index).eval(env); + return v.value || v.toCSS(); + }); + return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Rule = function (name, value, important, index) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + ";"; + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Ruleset = function (selectors, rules) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); + + ruleset.root = this.root; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > rule.selectors[j].elements.length) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + this.joinSelectors( paths, context, this.selectors ); + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + }, + + joinSelectors: function (paths, context, selectors) { + for (var s = 0; s < selectors.length; s++) { + this.joinSelector(paths, context, selectors[s]); + } + }, + + joinSelector: function (paths, context, selector) { + var before = [], after = [], beforeElements = [], + afterElements = [], hasParentSelector = false, el; + + for (var i = 0; i < selector.elements.length; i++) { + el = selector.elements[i]; + if (el.combinator.value.charAt(0) === '&') { + hasParentSelector = true; + } + if (hasParentSelector) afterElements.push(el); + else beforeElements.push(el); + } + + if (! hasParentSelector) { + afterElements = beforeElements; + beforeElements = []; + } + + if (beforeElements.length > 0) { + before.push(new(tree.Selector)(beforeElements)); + } + + if (afterElements.length > 0) { + after.push(new(tree.Selector)(afterElements)); + } + + for (var c = 0; c < context.length; c++) { + paths.push(before.concat(context[c]).concat(after)); + } + } +}; +})(require('../tree')); +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + var len = this.elements.length, + olen = other.elements.length, + max = Math.min(len, olen); + + if (len < olen) { + return false; + } else { + for (var i = 0; i < max; i++) { + if (this.elements[i].value !== other.elements[i].value) { + return false; + } + } + } + return true; +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('../tree')); +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Variable = function (name, index) { this.name = name, this.index = index }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { message: "variable " + name + " is undefined", + index: this.index }; + } + } +}; + +})(require('../tree')); +require('./tree').find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +require('./tree').jsify = function (obj) { + if (Array.isArray(obj.value) && (obj.value.length > 1)) { + return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; + } else { + return obj.toCSS(false); + } +}; +// +// browser.js - client-side engine +// + +var isFileProtocol = (location.protocol === 'file:' || + location.protocol === 'chrome:' || + location.protocol === 'chrome-extension:' || + location.protocol === 'resource:'); + +less.env = less.env || (location.hostname == '127.0.0.1' || + location.hostname == '0.0.0.0' || + location.hostname == 'localhost' || + location.port.length > 0 || + isFileProtocol ? 'development' + : 'production'); + +// Load styles asynchronously (default: false) +// +// This is set to `false` by default, so that the body +// doesn't start loading before the stylesheets are parsed. +// Setting this to `true` can result in flickering. +// +less.async = false; + +// Interval between watch polls +less.poll = less.poll || (isFileProtocol ? 1000 : 1500); + +// +// Watch mode +// +less.watch = function () { return this.watchMode = true }; +less.unwatch = function () { return this.watchMode = false }; + +if (less.env === 'development') { + less.optimization = 0; + + if (/!watch/.test(location.hash)) { + less.watch(); + } + less.watchTimer = setInterval(function () { + if (less.watchMode) { + loadStyleSheets(function (root, sheet, env) { + if (root) { + createCSS(root.toCSS(), sheet, env.lastModified); + } + }); + } + }, less.poll); +} else { + less.optimization = 3; +} + +var cache; + +try { + cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; +} catch (_) { + cache = null; +} + +// +// Get all tags with the 'rel' attribute set to "stylesheet/less" +// +var links = document.getElementsByTagName('link'); +var typePattern = /^text\/(x-)?less$/; + +less.sheets = []; + +for (var i = 0; i < links.length; i++) { + if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && + (links[i].type.match(typePattern)))) { + less.sheets.push(links[i]); + } +} + + +less.refresh = function (reload) { + var startTime, endTime; + startTime = endTime = new(Date); + + loadStyleSheets(function (root, sheet, env) { + if (env.local) { + log("loading " + sheet.href + " from cache."); + } else { + log("parsed " + sheet.href + " successfully."); + createCSS(root.toCSS(), sheet, env.lastModified); + } + log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); + (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); + endTime = new(Date); + }, reload); + + loadStyles(); +}; +less.refreshStyles = loadStyles; + +less.refresh(less.env === 'development'); + +function loadStyles() { + var styles = document.getElementsByTagName('style'); + for (var i = 0; i < styles.length; i++) { + if (styles[i].type.match(typePattern)) { + new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { + var css = tree.toCSS(); + var style = styles[i]; + try { + style.innerHTML = css; + } catch (_) { + style.styleSheets.cssText = css; + } + style.type = 'text/css'; + }); + } + } +} + +function loadStyleSheets(callback, reload) { + for (var i = 0; i < less.sheets.length; i++) { + loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); + } +} + +function loadStyleSheet(sheet, callback, reload, remaining) { + var url = window.location.href.replace(/[#?].*$/, ''); + var href = sheet.href.replace(/\?.*$/, ''); + var css = cache && cache.getItem(href); + var timestamp = cache && cache.getItem(href + ':timestamp'); + var styles = { css: css, timestamp: timestamp }; + + // Stylesheets in IE don't always return the full path + if (! /^(https?|file):/.test(href)) { + if (href.charAt(0) == "/") { + href = window.location.protocol + "//" + window.location.host + href; + } else { + href = url.slice(0, url.lastIndexOf('/') + 1) + href; + } + } + + xhr(sheet.href, sheet.type, function (data, lastModified) { + if (!reload && styles && lastModified && + (new(Date)(lastModified).valueOf() === + new(Date)(styles.timestamp).valueOf())) { + // Use local copy + createCSS(styles.css, sheet); + callback(null, sheet, { local: true, remaining: remaining }); + } else { + // Use remote copy (re-parse) + try { + new(less.Parser)({ + optimization: less.optimization, + paths: [href.replace(/[\w\.-]+$/, '')], + mime: sheet.type + }).parse(data, function (e, root) { + if (e) { return error(e, href) } + try { + callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); + removeNode(document.getElementById('less-error-message:' + extractId(href))); + } catch (e) { + error(e, href); + } + }); + } catch (e) { + error(e, href); + } + } + }, function (status, url) { + throw new(Error)("Couldn't load " + url + " (" + status + ")"); + }); +} + +function extractId(href) { + return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain + .replace(/^\//, '' ) // Remove root / + .replace(/\?.*$/, '' ) // Remove query + .replace(/\.[^\.\/]+$/, '' ) // Remove file extension + .replace(/[^\.\w-]+/g, '-') // Replace illegal characters + .replace(/\./g, ':'); // Replace dots with colons(for valid id) +} + +function createCSS(styles, sheet, lastModified) { + var css; + + // Strip the query-string + var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; + + // If there is no title set, use the filename, minus the extension + var id = 'less:' + (sheet.title || extractId(href)); + + // If the stylesheet doesn't exist, create a new node + if ((css = document.getElementById(id)) === null) { + css = document.createElement('style'); + css.type = 'text/css'; + css.media = sheet.media || 'screen'; + css.id = id; + document.getElementsByTagName('head')[0].appendChild(css); + } + + if (css.styleSheet) { // IE + try { + css.styleSheet.cssText = styles; + } catch (e) { + throw new(Error)("Couldn't reassign styleSheet.cssText."); + } + } else { + (function (node) { + if (css.childNodes.length > 0) { + if (css.firstChild.nodeValue !== node.nodeValue) { + css.replaceChild(node, css.firstChild); + } + } else { + css.appendChild(node); + } + })(document.createTextNode(styles)); + } + + // Don't update the local store if the file wasn't modified + if (lastModified && cache) { + log('saving ' + href + ' to cache.'); + cache.setItem(href, styles); + cache.setItem(href + ':timestamp', lastModified); + } +} + +function xhr(url, type, callback, errback) { + var xhr = getXMLHttpRequest(); + var async = isFileProtocol ? false : less.async; + + if (typeof(xhr.overrideMimeType) === 'function') { + xhr.overrideMimeType('text/css'); + } + xhr.open('GET', url, async); + xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); + xhr.send(null); + + if (isFileProtocol) { + if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { + callback(xhr.responseText); + } else { + errback(xhr.status, url); + } + } else if (async) { + xhr.onreadystatechange = function () { + if (xhr.readyState == 4) { + handleResponse(xhr, callback, errback); + } + }; + } else { + handleResponse(xhr, callback, errback); + } + + function handleResponse(xhr, callback, errback) { + if (xhr.status >= 200 && xhr.status < 300) { + callback(xhr.responseText, + xhr.getResponseHeader("Last-Modified")); + } else if (typeof(errback) === 'function') { + errback(xhr.status, url); + } + } +} + +function getXMLHttpRequest() { + if (window.XMLHttpRequest) { + return new(XMLHttpRequest); + } else { + try { + return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); + } catch (e) { + log("browser doesn't support AJAX."); + return null; + } + } +} + +function removeNode(node) { + return node && node.parentNode.removeChild(node); +} + +function log(str) { + if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } +} + +function error(e, href) { + var id = 'less-error-message:' + extractId(href); + + var template = ['
    ', + '
  • {0}
    • ', + '
  • {current}
    • ', + '
  • {2}
    • ', + '
'].join('\n'); + + var elem = document.createElement('div'), timer, content; + + elem.id = id; + elem.className = "less-error-message"; + + content = '

' + (e.message || 'There is an error in your .less file') + + '

' + '

' + href + " "; + + if (e.extract) { + content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

' + + template.replace(/\[(-?\d)\]/g, function (_, i) { + return (parseInt(e.line) + parseInt(i)) || ''; + }).replace(/\{(\d)\}/g, function (_, i) { + return e.extract[parseInt(i)] || ''; + }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '' + + e.extract[1].slice(e.column) + ''); + } + elem.innerHTML = content; + + // CSS for error messages + createCSS([ + '.less-error-message ul, .less-error-message li {', + 'list-style-type: none;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'margin: 0;', + '}', + '.less-error-message label {', + 'font-size: 12px;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'color: #cc7777;', + '}', + '.less-error-message pre {', + 'color: #ee4444;', + 'padding: 4px 0;', + 'margin: 0;', + 'display: inline-block;', + '}', + '.less-error-message pre.ctx {', + 'color: #dd4444;', + '}', + '.less-error-message h3 {', + 'font-size: 20px;', + 'font-weight: bold;', + 'padding: 15px 0 5px 0;', + 'margin: 0;', + '}', + '.less-error-message a {', + 'color: #10a', + '}', + '.less-error-message .error {', + 'color: red;', + 'font-weight: bold;', + 'padding-bottom: 2px;', + 'border-bottom: 1px dashed red;', + '}' + ].join('\n'), { title: 'error-message' }); + + elem.style.cssText = [ + "font-family: Arial, sans-serif", + "border: 1px solid #e00", + "background-color: #eee", + "border-radius: 5px", + "-webkit-border-radius: 5px", + "-moz-border-radius: 5px", + "color: #e00", + "padding: 15px", + "margin-bottom: 15px" + ].join(';'); + + if (less.env == 'development') { + timer = setInterval(function () { + if (document.body) { + if (document.getElementById(id)) { + document.body.replaceChild(elem, document.getElementById(id)); + } else { + document.body.insertBefore(elem, document.body.firstChild); + } + clearInterval(timer); + } + }, 10); + } +} + +})(window); diff --git a/node_modules/less-brunch/node_modules/less/dist/less-1.1.6.min.js b/node_modules/less-brunch/node_modules/less/dist/less-1.1.6.min.js new file mode 100644 index 0000000..a30623b --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/dist/less-1.1.6.min.js @@ -0,0 +1,9 @@ +// +// LESS - Leaner CSS v1.1.6 +// http://lesscss.org +// +// Copyright (c) 2009-2011, Alexis Sellier +// Licensed under the Apache 2.0 License. +// +(function(a,b){function c(b){return a.less[b.split("/")[1]]}function l(){var a=document.getElementsByTagName("style");for(var b=0;b0?d.firstChild.nodeValue!==a.nodeValue&&d.replaceChild(a,d.firstChild):d.appendChild(a)})(document.createTextNode(a));c&&g&&(t("saving "+e+" to cache."),g.setItem(e,a),g.setItem(e+":timestamp",c))}function q(a,b,c,e){function i(b,c,d){b.status>=200&&b.status<300?c(b.responseText,b.getResponseHeader("Last-Modified")):typeof d=="function"&&d(b.status,a)}var g=r(),h=f?!1:d.async;typeof g.overrideMimeType=="function"&&g.overrideMimeType("text/css"),g.open("GET",a,h),g.setRequestHeader("Accept",b||"text/x-less, text/css; q=0.9, */*; q=0.5"),g.send(null),f?g.status===0||g.status>=200&&g.status<300?c(g.responseText):e(g.status,a):h?g.onreadystatechange=function(){g.readyState==4&&i(g,c,e)}:i(g,c,e)}function r(){if(a.XMLHttpRequest)return new XMLHttpRequest;try{return new ActiveXObject("MSXML2.XMLHTTP.3.0")}catch(b){return t("browser doesn't support AJAX."),null}}function s(a){return a&&a.parentNode.removeChild(a)}function t(a){d.env=="development"&&typeof console!="undefined"&&console.log("less: "+a)}function u(a,b){var c="less-error-message:"+o(b),e=["
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"+(a.message||"There is an error in your .less file")+"

"+'

'+b+" ",a.extract&&(h+="on line "+a.line+", column "+(a.column+1)+":

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+ if (block.call(thisp, this[i])) { + values.push(this[i]); + } + } + return values; + }; +} +if (!Array.prototype.reduce) { + Array.prototype.reduce = function(fun /*, initial*/) { + var len = this.length >>> 0; + var i = 0; + + // no value to return if no initial value and an empty array + if (len === 0 && arguments.length === 1) throw new TypeError(); + + if (arguments.length >= 2) { + var rv = arguments[1]; + } else { + do { + if (i in this) { + rv = this[i++]; + break; + } + // if array contains no values, no initial value to return + if (++i >= len) throw new TypeError(); + } while (true); + } + for (; i < len; i++) { + if (i in this) { + rv = fun.call(null, rv, this[i], i, this); + } + } + return rv; + }; +} +if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (value /*, fromIndex */ ) { + var length = this.length; + var i = arguments[1] || 0; + + if (!length) return -1; + if (i >= length) return -1; + if (i < 0) i += length; + + for (; i < length; i++) { + if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } + if (value === this[i]) return i; + } + return -1; + }; +} + +// +// Object +// +if (!Object.keys) { + Object.keys = function (object) { + var keys = []; + for (var name in object) { + if (Object.prototype.hasOwnProperty.call(object, name)) { + keys.push(name); + } + } + return keys; + }; +} + +// +// String +// +if (!String.prototype.trim) { + String.prototype.trim = function () { + return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); + }; +} +var less, tree; + +if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { + // Rhino + // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 + if (typeof(window) === 'undefined') { less = {} } + else { less = window.less = {} } + tree = less.tree = {}; + less.mode = 'rhino'; +} else if (typeof(window) === 'undefined') { + // Node.js + less = exports, + tree = require('./tree'); + less.mode = 'node'; +} else { + // Browser + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; + less.mode = 'browser'; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + mime: env && env.mime, // MIME type of .less files + error: null, // Error in parsing/evaluating an import + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (e, root) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + + if (e && !that.error) { that.error = e } + callback(e, root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + function expect(arg, msg) { + var result = $(arg); + if (! result) { + error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" + : "unexpected token")); + } else { + return result; + } + } + + function error(msg, type) { + throw { index: i, type: type || 'Syntax', message: msg }; + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + function getLocation(index) { + for (var n = index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + return { line: index ? (input.slice(0, index).match(/\n/g) || "").length : null, + column: column }; + } + + function LessError(e, env) { + var lines = input.split('\n'), + loc = getLocation(e.index), + line = loc.line, + col = loc.column; + + this.type = e.type || 'SyntaxError'; + this.message = e.message; + this.filename = e.filename || env.filename; + this.index = e.index; + this.line = typeof(line) === 'number' ? line + 1 : null; + this.callLine = e.call && (getLocation(e.call) + 1); + this.callExtract = lines[getLocation(e.call)]; + this.stack = e.stack; + this.column = col; + this.extract = [ + lines[line - 1], + lines[line], + lines[line + 1] + ]; + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + chunks = []; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + level = 0, + match, + chunk = chunks[0], + inParam, + inString; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = i; + + if (!inString && !inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + if (c === '{' && !inString && !inParam) { level ++; + chunk.push(c); + } else if (c === '}' && !inString && !inParam) { level --; + chunk.push(c); + chunks[++j] = chunk = []; + } else if (c === '(' && !inString && !inParam) { + chunk.push(c); + inParam = true; + } else if (c === ')' && !inString && inParam) { + chunk.push(c); + inParam = false; + } else { + if (c === '"' || c === "'" || c === '`') { + if (! inString) { + inString = c; + } else { + inString = inString === c ? false : inString; + } + } + chunk.push(c); + } + } + if (level > 0) { + throw { + type: 'Syntax', + message: "Missing closing `}`", + filename: env.filename + }; + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + try { + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + } catch (e) { + return callback(new(LessError)(e, env)); + } + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = []; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + throw new(LessError)(e, env); + } + + if (parser.imports.error) { throw parser.imports.error } + + if (options.yuicompress && less.mode === 'node') { + return require('./cssmin').compressor.cssmin(css); + } else if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + type: "Parse", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + + if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { + if (tree.colors.hasOwnProperty(k)) { + // detect named color + return new(tree.Color)(tree.colors[k].slice(1)); + } else { + return new(tree.Keyword)(k); + } + } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args, index = i; + + if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args, index) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.entities.assignment) || $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // Assignments are argument entities for calls. + // They are present in ie filter properties as shown below. + // + // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) + // + + assignment: function () { + var key, value; + if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { + return new(tree.Assignment)(key, value); + } + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + + expect(')'); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e, i)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if ($(this.important)) { + important = true; + } + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args, index, important); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value, cond; + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + save(); + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + while (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + value = expect(this.expression, 'expected expression'); + params.push({ name: param.name, value: value }); + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + if (! $(',')) { break } + } + expect(')'); + + if ($(/^when/)) { // Guard + cond = expect(this.conditions, 'expected condition'); + } + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset, cond); + } else { + restore(); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^\(opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + expect(')'); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c, v; + + c = $(this.combinator); + e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || + $('*') || $(this.attribute) || $(/^\([^)@]+\)/); + + if (! e) { + $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v)); + } + + if (e) { return new(tree.Element)(c, e, i) } + + if (c.value && c.value.charAt(0) === '&') { + return new(tree.Element)(c, null, i); + } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === '&') { + match = '&'; + i++; + if(input.charAt(i) === ' ') { + match = '& '; + } + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(match); + } else if (c === ':' && input.charAt(i + 1) === ':') { + i += 2; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)('::'); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path, features; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url))) { + features = $(this.mediaFeatures); + if ($(';')) { + return new(tree.Import)(path, imports, features); + } + } + }, + + mediaFeature: function () { + var nodes = []; + + do { + if (e = $(this.entities.keyword)) { + nodes.push(e); + } else if ($('(')) { + p = $(this.property); + e = $(this.entity); + if ($(')')) { + if (p && e) { + nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); + } else if (e) { + nodes.push(new(tree.Paren)(e)); + } else { + return null; + } + } else { return null } + } + } while (e); + + if (nodes.length > 0) { + return new(tree.Expression)(nodes); + } + }, + + mediaFeatures: function () { + var f, features = []; + while (f = $(this.mediaFeature)) { + features.push(f); + if (! $(',')) { break } + } + return features.length > 0 ? features : null; + }, + + media: function () { + var features; + + if ($(/^@media/)) { + features = $(this.mediaFeatures); + + if (rules = $(this.block)) { + return new(tree.Directive)('@media', rules, features); + } + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types, e, nodes; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import']) || $(this.media)) { + return value; + } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + conditions: function () { + var a, b, index = i, condition; + + if (a = $(this.condition)) { + while ($(',') && (b = $(this.condition))) { + condition = new(tree.Condition)('or', condition || a, b, index); + } + return condition || a; + } + }, + condition: function () { + var a, b, c, op, index = i, negate = false; + + if ($(/^not/)) { negate = true } + expect('('); + if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { + if (op = $(/^(?:>=|=<|[<=>])/)) { + if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { + c = new(tree.Condition)(op, a, b, index, negate); + } else { + error('expected expression'); + } + } else { + c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); + } + expect(')'); + return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (less.mode === 'browser' || less.mode === 'rhino') { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (path.charAt(0) !== '/' && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); + }; +} + +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fade: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a = amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + return this._math('round', n); + }, + ceil: function (n) { + return this._math('ceil', n); + }, + floor: function (n) { + return this._math('floor', n); + }, + _math: function (fn, n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math[fn](number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math[fn](n); + } else { + throw { type: "Argument", message: "argument must be a number" }; + } + }, + argb: function (color) { + return new(tree.Anonymous)(color.toARGB()); + + }, + percentage: function (n) { + return new(tree.Dimension)(n.value * 100, '%'); + }, + color: function (n) { + if (n instanceof tree.Quoted) { + return new(tree.Color)(n.value.slice(1)); + } else { + throw { type: "Argument", message: "argument must be a string" }; + } + }, + iscolor: function (n) { + return this._isa(n, tree.Color); + }, + isnumber: function (n) { + return this._isa(n, tree.Dimension); + }, + isstring: function (n) { + return this._isa(n, tree.Quoted); + }, + iskeyword: function (n) { + return this._isa(n, tree.Keyword); + }, + isurl: function (n) { + return this._isa(n, tree.URL); + }, + ispixel: function (n) { + return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; + }, + ispercentage: function (n) { + return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; + }, + isem: function (n) { + return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; + }, + _isa: function (n, Type) { + return (n instanceof Type) ? tree.True : tree.False; + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('./tree')); +(function (tree) { + tree.colors = { + 'aliceblue':'#f0f8ff', + 'antiquewhite':'#faebd7', + 'aqua':'#00ffff', + 'aquamarine':'#7fffd4', + 'azure':'#f0ffff', + 'beige':'#f5f5dc', + 'bisque':'#ffe4c4', + 'black':'#000000', + 'blanchedalmond':'#ffebcd', + 'blue':'#0000ff', + 'blueviolet':'#8a2be2', + 'brown':'#a52a2a', + 'burlywood':'#deb887', + 'cadetblue':'#5f9ea0', + 'chartreuse':'#7fff00', + 'chocolate':'#d2691e', + 'coral':'#ff7f50', + 'cornflowerblue':'#6495ed', + 'cornsilk':'#fff8dc', + 'crimson':'#dc143c', + 'cyan':'#00ffff', + 'darkblue':'#00008b', + 'darkcyan':'#008b8b', + 'darkgoldenrod':'#b8860b', + 'darkgray':'#a9a9a9', + 'darkgrey':'#a9a9a9', + 'darkgreen':'#006400', + 'darkkhaki':'#bdb76b', + 'darkmagenta':'#8b008b', + 'darkolivegreen':'#556b2f', + 'darkorange':'#ff8c00', + 'darkorchid':'#9932cc', + 'darkred':'#8b0000', + 'darksalmon':'#e9967a', + 'darkseagreen':'#8fbc8f', + 'darkslateblue':'#483d8b', + 'darkslategray':'#2f4f4f', + 'darkslategrey':'#2f4f4f', + 'darkturquoise':'#00ced1', + 'darkviolet':'#9400d3', + 'deeppink':'#ff1493', + 'deepskyblue':'#00bfff', + 'dimgray':'#696969', + 'dimgrey':'#696969', + 'dodgerblue':'#1e90ff', + 'firebrick':'#b22222', + 'floralwhite':'#fffaf0', + 'forestgreen':'#228b22', + 'fuchsia':'#ff00ff', + 'gainsboro':'#dcdcdc', + 'ghostwhite':'#f8f8ff', + 'gold':'#ffd700', + 'goldenrod':'#daa520', + 'gray':'#808080', + 'grey':'#808080', + 'green':'#008000', + 'greenyellow':'#adff2f', + 'honeydew':'#f0fff0', + 'hotpink':'#ff69b4', + 'indianred':'#cd5c5c', + 'indigo':'#4b0082', + 'ivory':'#fffff0', + 'khaki':'#f0e68c', + 'lavender':'#e6e6fa', + 'lavenderblush':'#fff0f5', + 'lawngreen':'#7cfc00', + 'lemonchiffon':'#fffacd', + 'lightblue':'#add8e6', + 'lightcoral':'#f08080', + 'lightcyan':'#e0ffff', + 'lightgoldenrodyellow':'#fafad2', + 'lightgray':'#d3d3d3', + 'lightgrey':'#d3d3d3', + 'lightgreen':'#90ee90', + 'lightpink':'#ffb6c1', + 'lightsalmon':'#ffa07a', + 'lightseagreen':'#20b2aa', + 'lightskyblue':'#87cefa', + 'lightslategray':'#778899', + 'lightslategrey':'#778899', + 'lightsteelblue':'#b0c4de', + 'lightyellow':'#ffffe0', + 'lime':'#00ff00', + 'limegreen':'#32cd32', + 'linen':'#faf0e6', + 'magenta':'#ff00ff', + 'maroon':'#800000', + 'mediumaquamarine':'#66cdaa', + 'mediumblue':'#0000cd', + 'mediumorchid':'#ba55d3', + 'mediumpurple':'#9370d8', + 'mediumseagreen':'#3cb371', + 'mediumslateblue':'#7b68ee', + 'mediumspringgreen':'#00fa9a', + 'mediumturquoise':'#48d1cc', + 'mediumvioletred':'#c71585', + 'midnightblue':'#191970', + 'mintcream':'#f5fffa', + 'mistyrose':'#ffe4e1', + 'moccasin':'#ffe4b5', + 'navajowhite':'#ffdead', + 'navy':'#000080', + 'oldlace':'#fdf5e6', + 'olive':'#808000', + 'olivedrab':'#6b8e23', + 'orange':'#ffa500', + 'orangered':'#ff4500', + 'orchid':'#da70d6', + 'palegoldenrod':'#eee8aa', + 'palegreen':'#98fb98', + 'paleturquoise':'#afeeee', + 'palevioletred':'#d87093', + 'papayawhip':'#ffefd5', + 'peachpuff':'#ffdab9', + 'peru':'#cd853f', + 'pink':'#ffc0cb', + 'plum':'#dda0dd', + 'powderblue':'#b0e0e6', + 'purple':'#800080', + 'red':'#ff0000', + 'rosybrown':'#bc8f8f', + 'royalblue':'#4169e1', + 'saddlebrown':'#8b4513', + 'salmon':'#fa8072', + 'sandybrown':'#f4a460', + 'seagreen':'#2e8b57', + 'seashell':'#fff5ee', + 'sienna':'#a0522d', + 'silver':'#c0c0c0', + 'skyblue':'#87ceeb', + 'slateblue':'#6a5acd', + 'slategray':'#708090', + 'slategrey':'#708090', + 'snow':'#fffafa', + 'springgreen':'#00ff7f', + 'steelblue':'#4682b4', + 'tan':'#d2b48c', + 'teal':'#008080', + 'thistle':'#d8bfd8', + 'tomato':'#ff6347', + 'turquoise':'#40e0d0', + 'violet':'#ee82ee', + 'wheat':'#f5deb3', + 'white':'#ffffff', + 'whitesmoke':'#f5f5f5', + 'yellow':'#ffff00', + 'yellowgreen':'#9acd32' + }; +})(require('./tree')); +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Assignment = function (key, val) { + this.key = key; + this.value = val; +}; +tree.Assignment.prototype = { + toCSS: function () { + return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree'));(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args, index) { + this.name = name; + this.args = args; + this.index = index; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + try { + return tree.functions[this.name].apply(tree.functions, args); + } catch (e) { + throw { type: e.type || "Runtime", + message: "error evaluating function `" + this.name + "`" + + (e.message ? ': ' + e.message : ''), + index: this.index }; + } + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('../tree')); +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + }, + toARGB: function () { + var argb = [Math.round(this.alpha * 255)].concat(this.rgb); + return '#' + argb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } +}; + + +})(require('../tree')); +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Condition = function (op, l, r, i, negate) { + this.op = op.trim(); + this.lvalue = l; + this.rvalue = r; + this.index = i; + this.negate = negate; +}; +tree.Condition.prototype.eval = function (env) { + var a = this.lvalue.eval(env), + b = this.rvalue.eval(env); + + var i = this.index, result + + var result = (function (op) { + switch (op) { + case 'and': + return a && b; + case 'or': + return a || b; + default: + if (a.compare) { + result = a.compare(b); + } else if (b.compare) { + result = b.compare(a); + } else { + throw { type: "Type", + message: "Unable to perform comparison", + index: i }; + } + switch (result) { + case -1: return op === '<' || op === '=<'; + case 0: return op === '=' || op === '>=' || op === '=<'; + case 1: return op === '>' || op === '>='; + } + } + })(this.op); + return this.negate ? !result : result; +}; + +})(require('../tree')); +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + }, + + // TODO: Perform unit conversion before comparing + compare: function (other) { + if (other instanceof tree.Dimension) { + if (other.value > this.value) { + return -1; + } else if (other.value < this.value) { + return 1; + } else { + return 0; + } + } else { + return -1; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Directive = function (name, value, features) { + this.name = name; + this.features = features && new(tree.Value)(features); + + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + this.ruleset.allowImports = true; + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + var features = this.features ? ' ' + this.features.toCSS(env) : ''; + + if (this.ruleset) { + this.ruleset.root = true; + return this.name + features + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + this.features = this.features && this.features.eval(env); + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('../tree')); +(function (tree) { + +tree.Element = function (combinator, value, index) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + + if (typeof(value) === 'string') { + this.value = value.trim(); + } else if (value) { + this.value = value; + } else { + this.value = ""; + } + this.index = index; +}; +tree.Element.prototype.eval = function (env) { + return new(tree.Element)(this.combinator, + this.value.eval ? this.value.eval(env) : this.value, + this.index); +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value); +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else if (value === '& ') { + this.value = '& '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + '& ' : ' ', + ':' : ' :', + '::': '::', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('../tree')); +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return this; + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS ? e.toCSS(env) : ''; + }).join(' '); + } +}; + +})(require('../tree')); +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports, features) { + var that = this; + + this._path = path; + this.features = features && new(tree.Value)(features); + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css(\?.*)?$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (e, root) { + that.root = root; + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function (env) { + var features = this.features ? ' ' + this.features.toCSS(env) : ''; + + if (this.css) { + return "@import " + this._path.toCSS() + features + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset, features = this.features && this.features.eval(env); + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return this.features ? new(tree.Directive)('@media', ruleset.rules, this.features.value) : ruleset.rules; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + eval: function (env) { + var result, + that = this, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); + }); + + try { + expression = new(Function)('return (' + expression + ')'); + } catch (e) { + throw { message: "JavaScript evaluation error: `" + expression + "`" , + index: this.index }; + } + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + result = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + if (typeof(result) === 'string') { + return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); + } else if (Array.isArray(result)) { + return new(tree.Anonymous)(result.join(', ')); + } else { + return new(tree.Anonymous)(result); + } + } +}; + +})(require('../tree')); + +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value }, + compare: function (other) { + if (other instanceof tree.Keyword) { + return other.value === this.value ? 0 : 1; + } else { + return -1; + } + } +}; + +tree.True = new(tree.Keyword)('true'); +tree.False = new(tree.Keyword)('false'); + +})(require('../tree')); +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index, important) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; + this.important = important; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, args, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(args, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments, this.important).rules); + match = true; + } catch (e) { + throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; + } + } + } + if (match) { + return rules; + } else { + throw { type: 'Runtime', + message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index }; + } + } + } + throw { type: 'Name', + message: this.selector.toCSS().trim() + " is undefined", + index: this.index }; + } +}; + +tree.mixin.Definition = function (name, params, rules, condition) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.condition = condition; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + evalParams: function (env, args) { + var frame = new(tree.Ruleset)(null, []); + + for (var i = 0, val; i < this.params.length; i++) { + if (this.params[i].name) { + if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); + } else { + throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + return frame; + }, + eval: function (env, args, important) { + var frame = this.evalParams(env, args), context, _arguments = [], rules; + + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); + + rules = important ? + this.rules.map(function (r) { + return new(tree.Rule)(r.name, r.value, '!important', r.index); + }) : this.rules.slice(0); + + return new(tree.Ruleset)(null, rules).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len, frame; + + if (argsLength < this.required) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + if (this.condition && !this.condition.eval({ + frames: [this.evalParams(env, args)].concat(env.frames) + })) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('../tree')); + +(function (tree) { + +tree.Paren = function (node) { + this.value = node; +}; +tree.Paren.prototype = { + toCSS: function (env) { + return '(' + this.value.toCSS(env) + ')'; + }, + eval: function (env) { + return new(tree.Paren)(this.value.eval(env)); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + var that = this; + var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, that.index, true).eval(env).value; + }).replace(/@\{([\w-]+)\}/g, function (_, name) { + var v = new(tree.Variable)('@' + name, that.index).eval(env); + return ('value' in v) ? v.value : v.toCSS(); + }); + return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Rule = function (name, value, important, index, inline) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + this.inline = inline || false; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + (this.inline ? "" : ";"); + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, + this.value.eval(context), + this.important, + this.index, this.inline); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Ruleset = function (selectors, rules) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); + var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0)); + + ruleset.root = this.root; + ruleset.allowImports = this.allowImports; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root || ruleset.allowImports) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > rule.selectors[j].elements.length) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + this.joinSelectors(paths, context, this.selectors); + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + }, + + joinSelectors: function (paths, context, selectors) { + for (var s = 0; s < selectors.length; s++) { + this.joinSelector(paths, context, selectors[s]); + } + }, + + joinSelector: function (paths, context, selector) { + var before = [], after = [], beforeElements = [], + afterElements = [], hasParentSelector = false, el; + + for (var i = 0; i < selector.elements.length; i++) { + el = selector.elements[i]; + if (el.combinator.value.charAt(0) === '&') { + hasParentSelector = true; + } + if (hasParentSelector) afterElements.push(el); + else beforeElements.push(el); + } + + if (! hasParentSelector) { + afterElements = beforeElements; + beforeElements = []; + } + + if (beforeElements.length > 0) { + before.push(new(tree.Selector)(beforeElements)); + } + + if (afterElements.length > 0) { + after.push(new(tree.Selector)(afterElements)); + } + + for (var c = 0; c < context.length; c++) { + paths.push(before.concat(context[c]).concat(after)); + } + } +}; +})(require('../tree')); +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + var len = this.elements.length, + olen = other.elements.length, + max = Math.min(len, olen); + + if (len < olen) { + return false; + } else { + for (var i = 0; i < max; i++) { + if (this.elements[i].value !== other.elements[i].value) { + return false; + } + } + } + return true; +}; +tree.Selector.prototype.eval = function (env) { + return new(tree.Selector)(this.elements.map(function (e) { + return e.eval(env); + })); +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('../tree')); +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Variable = function (name, index) { this.name = name, this.index = index }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { message: "variable " + name + " is undefined", + index: this.index }; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +tree.jsify = function (obj) { + if (Array.isArray(obj.value) && (obj.value.length > 1)) { + return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; + } else { + return obj.toCSS(false); + } +}; + +})(require('./tree')); +// +// browser.js - client-side engine +// + +var isFileProtocol = (location.protocol === 'file:' || + location.protocol === 'chrome:' || + location.protocol === 'chrome-extension:' || + location.protocol === 'resource:'); + +less.env = less.env || (location.hostname == '127.0.0.1' || + location.hostname == '0.0.0.0' || + location.hostname == 'localhost' || + location.port.length > 0 || + isFileProtocol ? 'development' + : 'production'); + +// Load styles asynchronously (default: false) +// +// This is set to `false` by default, so that the body +// doesn't start loading before the stylesheets are parsed. +// Setting this to `true` can result in flickering. +// +less.async = false; + +// Interval between watch polls +less.poll = less.poll || (isFileProtocol ? 1000 : 1500); + +// +// Watch mode +// +less.watch = function () { return this.watchMode = true }; +less.unwatch = function () { return this.watchMode = false }; + +if (less.env === 'development') { + less.optimization = 0; + + if (/!watch/.test(location.hash)) { + less.watch(); + } + less.watchTimer = setInterval(function () { + if (less.watchMode) { + loadStyleSheets(function (root, sheet, env) { + if (root) { + createCSS(root.toCSS(), sheet, env.lastModified); + } + }); + } + }, less.poll); +} else { + less.optimization = 3; +} + +var cache; + +try { + cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; +} catch (_) { + cache = null; +} + +// +// Get all tags with the 'rel' attribute set to "stylesheet/less" +// +var links = document.getElementsByTagName('link'); +var typePattern = /^text\/(x-)?less$/; + +less.sheets = []; + +for (var i = 0; i < links.length; i++) { + if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && + (links[i].type.match(typePattern)))) { + less.sheets.push(links[i]); + } +} + + +less.refresh = function (reload) { + var startTime, endTime; + startTime = endTime = new(Date); + + loadStyleSheets(function (root, sheet, env) { + if (env.local) { + log("loading " + sheet.href + " from cache."); + } else { + log("parsed " + sheet.href + " successfully."); + createCSS(root.toCSS(), sheet, env.lastModified); + } + log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); + (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); + endTime = new(Date); + }, reload); + + loadStyles(); +}; +less.refreshStyles = loadStyles; + +less.refresh(less.env === 'development'); + +function loadStyles() { + var styles = document.getElementsByTagName('style'); + for (var i = 0; i < styles.length; i++) { + if (styles[i].type.match(typePattern)) { + new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { + var css = tree.toCSS(); + var style = styles[i]; + style.type = 'text/css'; + if (style.styleSheet) { + style.styleSheet.cssText = css; + } else { + style.innerHTML = css; + } + }); + } + } +} + +function loadStyleSheets(callback, reload) { + for (var i = 0; i < less.sheets.length; i++) { + loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); + } +} + +function loadStyleSheet(sheet, callback, reload, remaining) { + var url = window.location.href.replace(/[#?].*$/, ''); + var href = sheet.href.replace(/\?.*$/, ''); + var css = cache && cache.getItem(href); + var timestamp = cache && cache.getItem(href + ':timestamp'); + var styles = { css: css, timestamp: timestamp }; + + // Stylesheets in IE don't always return the full path + if (! /^(https?|file):/.test(href)) { + if (href.charAt(0) == "/") { + href = window.location.protocol + "//" + window.location.host + href; + } else { + href = url.slice(0, url.lastIndexOf('/') + 1) + href; + } + } + + xhr(sheet.href, sheet.type, function (data, lastModified) { + if (!reload && styles && lastModified && + (new(Date)(lastModified).valueOf() === + new(Date)(styles.timestamp).valueOf())) { + // Use local copy + createCSS(styles.css, sheet); + callback(null, sheet, { local: true, remaining: remaining }); + } else { + // Use remote copy (re-parse) + try { + new(less.Parser)({ + optimization: less.optimization, + paths: [href.replace(/[\w\.-]+$/, '')], + mime: sheet.type + }).parse(data, function (e, root) { + if (e) { return error(e, href) } + try { + callback(root, sheet, { local: false, lastModified: lastModified, remaining: remaining }); + removeNode(document.getElementById('less-error-message:' + extractId(href))); + } catch (e) { + error(e, href); + } + }); + } catch (e) { + error(e, href); + } + } + }, function (status, url) { + throw new(Error)("Couldn't load " + url + " (" + status + ")"); + }); +} + +function extractId(href) { + return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain + .replace(/^\//, '' ) // Remove root / + .replace(/\?.*$/, '' ) // Remove query + .replace(/\.[^\.\/]+$/, '' ) // Remove file extension + .replace(/[^\.\w-]+/g, '-') // Replace illegal characters + .replace(/\./g, ':'); // Replace dots with colons(for valid id) +} + +function createCSS(styles, sheet, lastModified) { + var css; + + // Strip the query-string + var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; + + // If there is no title set, use the filename, minus the extension + var id = 'less:' + (sheet.title || extractId(href)); + + // If the stylesheet doesn't exist, create a new node + if ((css = document.getElementById(id)) === null) { + css = document.createElement('style'); + css.type = 'text/css'; + css.media = sheet.media || 'screen'; + css.id = id; + document.getElementsByTagName('head')[0].appendChild(css); + } + + if (css.styleSheet) { // IE + try { + css.styleSheet.cssText = styles; + } catch (e) { + throw new(Error)("Couldn't reassign styleSheet.cssText."); + } + } else { + (function (node) { + if (css.childNodes.length > 0) { + if (css.firstChild.nodeValue !== node.nodeValue) { + css.replaceChild(node, css.firstChild); + } + } else { + css.appendChild(node); + } + })(document.createTextNode(styles)); + } + + // Don't update the local store if the file wasn't modified + if (lastModified && cache) { + log('saving ' + href + ' to cache.'); + cache.setItem(href, styles); + cache.setItem(href + ':timestamp', lastModified); + } +} + +function xhr(url, type, callback, errback) { + var xhr = getXMLHttpRequest(); + var async = isFileProtocol ? false : less.async; + + if (typeof(xhr.overrideMimeType) === 'function') { + xhr.overrideMimeType('text/css'); + } + xhr.open('GET', url, async); + xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); + xhr.send(null); + + if (isFileProtocol) { + if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { + callback(xhr.responseText); + } else { + errback(xhr.status, url); + } + } else if (async) { + xhr.onreadystatechange = function () { + if (xhr.readyState == 4) { + handleResponse(xhr, callback, errback); + } + }; + } else { + handleResponse(xhr, callback, errback); + } + + function handleResponse(xhr, callback, errback) { + if (xhr.status >= 200 && xhr.status < 300) { + callback(xhr.responseText, + xhr.getResponseHeader("Last-Modified")); + } else if (typeof(errback) === 'function') { + errback(xhr.status, url); + } + } +} + +function getXMLHttpRequest() { + if (window.XMLHttpRequest) { + return new(XMLHttpRequest); + } else { + try { + return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); + } catch (e) { + log("browser doesn't support AJAX."); + return null; + } + } +} + +function removeNode(node) { + return node && node.parentNode.removeChild(node); +} + +function log(str) { + if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } +} + +function error(e, href) { + var id = 'less-error-message:' + extractId(href); + + var template = ['
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' + (e.message || 'There is an error in your .less file') + + '

' + '

' + href + " "; + + if (e.extract) { + content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

' + + template.replace(/\[(-?\d)\]/g, function (_, i) { + return (parseInt(e.line) + parseInt(i)) || ''; + }).replace(/\{(\d)\}/g, function (_, i) { + return e.extract[parseInt(i)] || ''; + }).replace(/\{current\}/, e.extract[1].slice(0, e.column) + '' + + e.extract[1].slice(e.column) + ''); + } + elem.innerHTML = content; + + // CSS for error messages + createCSS([ + '.less-error-message ul, .less-error-message li {', + 'list-style-type: none;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'margin: 0;', + '}', + '.less-error-message label {', + 'font-size: 12px;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'color: #cc7777;', + '}', + '.less-error-message pre {', + 'color: #ee4444;', + 'padding: 4px 0;', + 'margin: 0;', + 'display: inline-block;', + '}', + '.less-error-message pre.ctx {', + 'color: #dd4444;', + '}', + '.less-error-message h3 {', + 'font-size: 20px;', + 'font-weight: bold;', + 'padding: 15px 0 5px 0;', + 'margin: 0;', + '}', + '.less-error-message a {', + 'color: #10a', + '}', + '.less-error-message .error {', + 'color: red;', + 'font-weight: bold;', + 'padding-bottom: 2px;', + 'border-bottom: 1px dashed red;', + '}' + ].join('\n'), { title: 'error-message' }); + + elem.style.cssText = [ + "font-family: Arial, sans-serif", + "border: 1px solid #e00", + "background-color: #eee", + "border-radius: 5px", + "-webkit-border-radius: 5px", + "-moz-border-radius: 5px", + "color: #e00", + "padding: 15px", + "margin-bottom: 15px" + ].join(';'); + + if (less.env == 'development') { + timer = setInterval(function () { + if (document.body) { + if (document.getElementById(id)) { + document.body.replaceChild(elem, document.getElementById(id)); + } else { + document.body.insertBefore(elem, document.body.firstChild); + } + clearInterval(timer); + } + }, 10); + } +} + +})(window); diff --git a/node_modules/less-brunch/node_modules/less/dist/less-1.2.0.min.js b/node_modules/less-brunch/node_modules/less/dist/less-1.2.0.min.js new file mode 100644 index 0000000..84e9047 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/dist/less-1.2.0.min.js @@ -0,0 +1,9 @@ +// +// LESS - Leaner CSS v1.2.0 +// http://lesscss.org +// +// Copyright (c) 2009-2011, Alexis Sellier +// Licensed under the Apache 2.0 License. +// +(function(a,b){function c(b){return a.less[b.split("/")[1]]}function m(){var a=document.getElementsByTagName("style");for(var b=0;b0?d.firstChild.nodeValue!==a.nodeValue&&d.replaceChild(a,d.firstChild):d.appendChild(a)})(document.createTextNode(a));c&&h&&(v("saving "+e+" to cache."),h.setItem(e,a),h.setItem(e+":timestamp",c))}function s(a,b,c,e){function i(b,c,d){b.status>=200&&b.status<300?c(b.responseText,b.getResponseHeader("Last-Modified")):typeof d=="function"&&d(b.status,a)}var f=t(),h=g?!1:d.async;typeof f.overrideMimeType=="function"&&f.overrideMimeType("text/css"),f.open("GET",a,h),f.setRequestHeader("Accept",b||"text/x-less, text/css; q=0.9, */*; q=0.5"),f.send(null),g?f.status===0||f.status>=200&&f.status<300?c(f.responseText):e(f.status,a):h?f.onreadystatechange=function(){f.readyState==4&&i(f,c,e)}:i(f,c,e)}function t(){if(a.XMLHttpRequest)return new XMLHttpRequest;try{return new ActiveXObject("MSXML2.XMLHTTP.3.0")}catch(b){return v("browser doesn't support AJAX."),null}}function u(a){return a&&a.parentNode.removeChild(a)}function v(a){d.env=="development"&&typeof console!="undefined"&&console.log("less: "+a)}function w(a,b){var c="less-error-message:"+q(b),e=["
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+ for (var i = 0; i < len; i++) { + if (i in this) { + block.call(thisObject, this[i], i, this); + } + } + }; +} +if (!Array.prototype.map) { + Array.prototype.map = function(fun /*, thisp*/) { + var len = this.length >>> 0; + var res = new Array(len); + var thisp = arguments[1]; + + for (var i = 0; i < len; i++) { + if (i in this) { + res[i] = fun.call(thisp, this[i], i, this); + } + } + return res; + }; +} +if (!Array.prototype.filter) { + Array.prototype.filter = function (block /*, thisp */) { + var values = []; + var thisp = arguments[1]; + for (var i = 0; i < this.length; i++) { + if (block.call(thisp, this[i])) { + values.push(this[i]); + } + } + return values; + }; +} +if (!Array.prototype.reduce) { + Array.prototype.reduce = function(fun /*, initial*/) { + var len = this.length >>> 0; + var i = 0; + + // no value to return if no initial value and an empty array + if (len === 0 && arguments.length === 1) throw new TypeError(); + + if (arguments.length >= 2) { + var rv = arguments[1]; + } else { + do { + if (i in this) { + rv = this[i++]; + break; + } + // if array contains no values, no initial value to return + if (++i >= len) throw new TypeError(); + } while (true); + } + for (; i < len; i++) { + if (i in this) { + rv = fun.call(null, rv, this[i], i, this); + } + } + return rv; + }; +} +if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (value /*, fromIndex */ ) { + var length = this.length; + var i = arguments[1] || 0; + + if (!length) return -1; + if (i >= length) return -1; + if (i < 0) i += length; + + for (; i < length; i++) { + if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } + if (value === this[i]) return i; + } + return -1; + }; +} + +// +// Object +// +if (!Object.keys) { + Object.keys = function (object) { + var keys = []; + for (var name in object) { + if (Object.prototype.hasOwnProperty.call(object, name)) { + keys.push(name); + } + } + return keys; + }; +} + +// +// String +// +if (!String.prototype.trim) { + String.prototype.trim = function () { + return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); + }; +} +var less, tree; + +if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { + // Rhino + // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 + if (typeof(window) === 'undefined') { less = {} } + else { less = window.less = {} } + tree = less.tree = {}; + less.mode = 'rhino'; +} else if (typeof(window) === 'undefined') { + // Node.js + less = exports, + tree = require('./tree'); + less.mode = 'node'; +} else { + // Browser + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; + less.mode = 'browser'; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + contents: {}, // Holds the imported file contents + mime: env && env.mime, // MIME type of .less files + error: null, // Error in parsing/evaluating an import + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (e, root, contents) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + that.contents[path] = contents; + + if (e && !that.error) { that.error = e } + callback(e, root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + function expect(arg, msg) { + var result = $(arg); + if (! result) { + error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" + : "unexpected token")); + } else { + return result; + } + } + + function error(msg, type) { + throw { index: i, type: type || 'Syntax', message: msg }; + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + function getInput(e, env) { + if (e.filename && env.filename && (e.filename !== env.filename)) { + return parser.imports.contents[e.filename]; + } else { + return input; + } + } + + function getLocation(index, input) { + for (var n = index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, + column: column }; + } + + function LessError(e, env) { + var input = getInput(e, env), + loc = getLocation(e.index, input), + line = loc.line, + col = loc.column, + lines = input.split('\n'); + + this.type = e.type || 'Syntax'; + this.message = e.message; + this.filename = e.filename || env.filename; + this.index = e.index; + this.line = typeof(line) === 'number' ? line + 1 : null; + this.callLine = e.call && (getLocation(e.call, input) + 1); + this.callExtract = lines[getLocation(e.call, input)]; + this.stack = e.stack; + this.column = col; + this.extract = [ + lines[line - 1], + lines[line], + lines[line + 1] + ]; + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + chunks = []; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + level = 0, + match, + chunk = chunks[0], + inParam, + inString; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = i; + + if (!inString && !inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + if (c === '{' && !inString && !inParam) { level ++; + chunk.push(c); + } else if (c === '}' && !inString && !inParam) { level --; + chunk.push(c); + chunks[++j] = chunk = []; + } else if (c === '(' && !inString && !inParam) { + chunk.push(c); + inParam = true; + } else if (c === ')' && !inString && inParam) { + chunk.push(c); + inParam = false; + } else { + if (c === '"' || c === "'" || c === '`') { + if (! inString) { + inString = c; + } else { + inString = inString === c ? false : inString; + } + } + chunk.push(c); + } + } + if (level > 0) { + throw { + type: 'Syntax', + message: "Missing closing `}`", + filename: env.filename + }; + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + try { + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + } catch (e) { + return callback(new(LessError)(e, env)); + } + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = [], importError; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + throw new(LessError)(e, env); + } + + if ((importError = parser.imports.error)) { // Check if there was an error during importing + if (importError instanceof LessError) throw importError; + else throw new(LessError)(importError, env); + } + + if (options.yuicompress && less.mode === 'node') { + return require('./cssmin').compressor.cssmin(css); + } else if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + type: "Parse", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + + if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { + if (tree.colors.hasOwnProperty(k)) { + // detect named color + return new(tree.Color)(tree.colors[k].slice(1)); + } else { + return new(tree.Keyword)(k); + } + } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args, index = i; + + if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args, index, env.filename) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.entities.assignment) || $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // Assignments are argument entities for calls. + // They are present in ie filter properties as shown below. + // + // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) + // + + assignment: function () { + var key, value; + if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { + return new(tree.Assignment)(key, value); + } + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + + expect(')'); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index, env.filename); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e, i)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if ($(this.important)) { + important = true; + } + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args, index, env.filename, important); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value, cond; + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + save(); + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + while (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + value = expect(this.expression, 'expected expression'); + params.push({ name: param.name, value: value }); + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + if (! $(',')) { break } + } + expect(')'); + + if ($(/^when/)) { // Guard + cond = expect(this.conditions, 'expected condition'); + } + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset, cond); + } else { + restore(); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^\(opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + expect(')'); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c, v; + + c = $(this.combinator); + e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || + $('*') || $(this.attribute) || $(/^\([^)@]+\)/); + + if (! e) { + $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v)); + } + + if (e) { return new(tree.Element)(c, e, i) } + + if (c.value && c.value.charAt(0) === '&') { + return new(tree.Element)(c, null, i); + } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === '&') { + match = '&'; + i++; + if(input.charAt(i) === ' ') { + match = '& '; + } + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(match); + } else if (c === ':' && input.charAt(i + 1) === ':') { + i += 2; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)('::'); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path, features, index = i; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url))) { + features = $(this.mediaFeatures); + if ($(';')) { + return new(tree.Import)(path, imports, features, index); + } + } + }, + + mediaFeature: function () { + var nodes = []; + + do { + if (e = $(this.entities.keyword)) { + nodes.push(e); + } else if ($('(')) { + p = $(this.property); + e = $(this.entity); + if ($(')')) { + if (p && e) { + nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); + } else if (e) { + nodes.push(new(tree.Paren)(e)); + } else { + return null; + } + } else { return null } + } + } while (e); + + if (nodes.length > 0) { + return new(tree.Expression)(nodes); + } + }, + + mediaFeatures: function () { + var f, features = []; + while (f = $(this.mediaFeature)) { + features.push(f); + if (! $(',')) { break } + } + return features.length > 0 ? features : null; + }, + + media: function () { + var features; + + if ($(/^@media/)) { + features = $(this.mediaFeatures); + + if (rules = $(this.block)) { + return new(tree.Directive)('@media', rules, features); + } + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types, e, nodes; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import']) || $(this.media)) { + return value; + } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + conditions: function () { + var a, b, index = i, condition; + + if (a = $(this.condition)) { + while ($(',') && (b = $(this.condition))) { + condition = new(tree.Condition)('or', condition || a, b, index); + } + return condition || a; + } + }, + condition: function () { + var a, b, c, op, index = i, negate = false; + + if ($(/^not/)) { negate = true } + expect('('); + if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { + if (op = $(/^(?:>=|=<|[<=>])/)) { + if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { + c = new(tree.Condition)(op, a, b, index, negate); + } else { + error('expected expression'); + } + } else { + c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); + } + expect(')'); + return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (less.mode === 'browser' || less.mode === 'rhino') { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (path.charAt(0) !== '/' && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); + }; +} + +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fade: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a = amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + return this._math('round', n); + }, + ceil: function (n) { + return this._math('ceil', n); + }, + floor: function (n) { + return this._math('floor', n); + }, + _math: function (fn, n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math[fn](number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math[fn](n); + } else { + throw { type: "Argument", message: "argument must be a number" }; + } + }, + argb: function (color) { + return new(tree.Anonymous)(color.toARGB()); + + }, + percentage: function (n) { + return new(tree.Dimension)(n.value * 100, '%'); + }, + color: function (n) { + if (n instanceof tree.Quoted) { + return new(tree.Color)(n.value.slice(1)); + } else { + throw { type: "Argument", message: "argument must be a string" }; + } + }, + iscolor: function (n) { + return this._isa(n, tree.Color); + }, + isnumber: function (n) { + return this._isa(n, tree.Dimension); + }, + isstring: function (n) { + return this._isa(n, tree.Quoted); + }, + iskeyword: function (n) { + return this._isa(n, tree.Keyword); + }, + isurl: function (n) { + return this._isa(n, tree.URL); + }, + ispixel: function (n) { + return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; + }, + ispercentage: function (n) { + return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; + }, + isem: function (n) { + return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; + }, + _isa: function (n, Type) { + return (n instanceof Type) ? tree.True : tree.False; + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('./tree')); +(function (tree) { + tree.colors = { + 'aliceblue':'#f0f8ff', + 'antiquewhite':'#faebd7', + 'aqua':'#00ffff', + 'aquamarine':'#7fffd4', + 'azure':'#f0ffff', + 'beige':'#f5f5dc', + 'bisque':'#ffe4c4', + 'black':'#000000', + 'blanchedalmond':'#ffebcd', + 'blue':'#0000ff', + 'blueviolet':'#8a2be2', + 'brown':'#a52a2a', + 'burlywood':'#deb887', + 'cadetblue':'#5f9ea0', + 'chartreuse':'#7fff00', + 'chocolate':'#d2691e', + 'coral':'#ff7f50', + 'cornflowerblue':'#6495ed', + 'cornsilk':'#fff8dc', + 'crimson':'#dc143c', + 'cyan':'#00ffff', + 'darkblue':'#00008b', + 'darkcyan':'#008b8b', + 'darkgoldenrod':'#b8860b', + 'darkgray':'#a9a9a9', + 'darkgrey':'#a9a9a9', + 'darkgreen':'#006400', + 'darkkhaki':'#bdb76b', + 'darkmagenta':'#8b008b', + 'darkolivegreen':'#556b2f', + 'darkorange':'#ff8c00', + 'darkorchid':'#9932cc', + 'darkred':'#8b0000', + 'darksalmon':'#e9967a', + 'darkseagreen':'#8fbc8f', + 'darkslateblue':'#483d8b', + 'darkslategray':'#2f4f4f', + 'darkslategrey':'#2f4f4f', + 'darkturquoise':'#00ced1', + 'darkviolet':'#9400d3', + 'deeppink':'#ff1493', + 'deepskyblue':'#00bfff', + 'dimgray':'#696969', + 'dimgrey':'#696969', + 'dodgerblue':'#1e90ff', + 'firebrick':'#b22222', + 'floralwhite':'#fffaf0', + 'forestgreen':'#228b22', + 'fuchsia':'#ff00ff', + 'gainsboro':'#dcdcdc', + 'ghostwhite':'#f8f8ff', + 'gold':'#ffd700', + 'goldenrod':'#daa520', + 'gray':'#808080', + 'grey':'#808080', + 'green':'#008000', + 'greenyellow':'#adff2f', + 'honeydew':'#f0fff0', + 'hotpink':'#ff69b4', + 'indianred':'#cd5c5c', + 'indigo':'#4b0082', + 'ivory':'#fffff0', + 'khaki':'#f0e68c', + 'lavender':'#e6e6fa', + 'lavenderblush':'#fff0f5', + 'lawngreen':'#7cfc00', + 'lemonchiffon':'#fffacd', + 'lightblue':'#add8e6', + 'lightcoral':'#f08080', + 'lightcyan':'#e0ffff', + 'lightgoldenrodyellow':'#fafad2', + 'lightgray':'#d3d3d3', + 'lightgrey':'#d3d3d3', + 'lightgreen':'#90ee90', + 'lightpink':'#ffb6c1', + 'lightsalmon':'#ffa07a', + 'lightseagreen':'#20b2aa', + 'lightskyblue':'#87cefa', + 'lightslategray':'#778899', + 'lightslategrey':'#778899', + 'lightsteelblue':'#b0c4de', + 'lightyellow':'#ffffe0', + 'lime':'#00ff00', + 'limegreen':'#32cd32', + 'linen':'#faf0e6', + 'magenta':'#ff00ff', + 'maroon':'#800000', + 'mediumaquamarine':'#66cdaa', + 'mediumblue':'#0000cd', + 'mediumorchid':'#ba55d3', + 'mediumpurple':'#9370d8', + 'mediumseagreen':'#3cb371', + 'mediumslateblue':'#7b68ee', + 'mediumspringgreen':'#00fa9a', + 'mediumturquoise':'#48d1cc', + 'mediumvioletred':'#c71585', + 'midnightblue':'#191970', + 'mintcream':'#f5fffa', + 'mistyrose':'#ffe4e1', + 'moccasin':'#ffe4b5', + 'navajowhite':'#ffdead', + 'navy':'#000080', + 'oldlace':'#fdf5e6', + 'olive':'#808000', + 'olivedrab':'#6b8e23', + 'orange':'#ffa500', + 'orangered':'#ff4500', + 'orchid':'#da70d6', + 'palegoldenrod':'#eee8aa', + 'palegreen':'#98fb98', + 'paleturquoise':'#afeeee', + 'palevioletred':'#d87093', + 'papayawhip':'#ffefd5', + 'peachpuff':'#ffdab9', + 'peru':'#cd853f', + 'pink':'#ffc0cb', + 'plum':'#dda0dd', + 'powderblue':'#b0e0e6', + 'purple':'#800080', + 'red':'#ff0000', + 'rosybrown':'#bc8f8f', + 'royalblue':'#4169e1', + 'saddlebrown':'#8b4513', + 'salmon':'#fa8072', + 'sandybrown':'#f4a460', + 'seagreen':'#2e8b57', + 'seashell':'#fff5ee', + 'sienna':'#a0522d', + 'silver':'#c0c0c0', + 'skyblue':'#87ceeb', + 'slateblue':'#6a5acd', + 'slategray':'#708090', + 'slategrey':'#708090', + 'snow':'#fffafa', + 'springgreen':'#00ff7f', + 'steelblue':'#4682b4', + 'tan':'#d2b48c', + 'teal':'#008080', + 'thistle':'#d8bfd8', + 'tomato':'#ff6347', + 'turquoise':'#40e0d0', + 'violet':'#ee82ee', + 'wheat':'#f5deb3', + 'white':'#ffffff', + 'whitesmoke':'#f5f5f5', + 'yellow':'#ffff00', + 'yellowgreen':'#9acd32' + }; +})(require('./tree')); +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Assignment = function (key, val) { + this.key = key; + this.value = val; +}; +tree.Assignment.prototype = { + toCSS: function () { + return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree'));(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args, index, filename) { + this.name = name; + this.args = args; + this.index = index; + this.filename = filename; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + try { + return tree.functions[this.name].apply(tree.functions, args); + } catch (e) { + throw { type: e.type || "Runtime", + message: "error evaluating function `" + this.name + "`" + + (e.message ? ': ' + e.message : ''), + index: this.index, filename: this.filename }; + } + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('../tree')); +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + }, + toARGB: function () { + var argb = [Math.round(this.alpha * 255)].concat(this.rgb); + return '#' + argb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } +}; + + +})(require('../tree')); +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Condition = function (op, l, r, i, negate) { + this.op = op.trim(); + this.lvalue = l; + this.rvalue = r; + this.index = i; + this.negate = negate; +}; +tree.Condition.prototype.eval = function (env) { + var a = this.lvalue.eval(env), + b = this.rvalue.eval(env); + + var i = this.index, result + + var result = (function (op) { + switch (op) { + case 'and': + return a && b; + case 'or': + return a || b; + default: + if (a.compare) { + result = a.compare(b); + } else if (b.compare) { + result = b.compare(a); + } else { + throw { type: "Type", + message: "Unable to perform comparison", + index: i }; + } + switch (result) { + case -1: return op === '<' || op === '=<'; + case 0: return op === '=' || op === '>=' || op === '=<'; + case 1: return op === '>' || op === '>='; + } + } + })(this.op); + return this.negate ? !result : result; +}; + +})(require('../tree')); +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + }, + + // TODO: Perform unit conversion before comparing + compare: function (other) { + if (other instanceof tree.Dimension) { + if (other.value > this.value) { + return -1; + } else if (other.value < this.value) { + return 1; + } else { + return 0; + } + } else { + return -1; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Directive = function (name, value, features) { + this.name = name; + this.features = features && new(tree.Value)(features); + + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + this.ruleset.allowImports = true; + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + var features = this.features ? ' ' + this.features.toCSS(env) : ''; + + if (this.ruleset) { + this.ruleset.root = true; + return this.name + features + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + this.features = this.features && this.features.eval(env); + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('../tree')); +(function (tree) { + +tree.Element = function (combinator, value, index) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + + if (typeof(value) === 'string') { + this.value = value.trim(); + } else if (value) { + this.value = value; + } else { + this.value = ""; + } + this.index = index; +}; +tree.Element.prototype.eval = function (env) { + return new(tree.Element)(this.combinator, + this.value.eval ? this.value.eval(env) : this.value, + this.index); +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value); +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else if (value === '& ') { + this.value = '& '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + '& ' : ' ', + ':' : ' :', + '::': '::', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('../tree')); +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return this; + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS ? e.toCSS(env) : ''; + }).join(' '); + } +}; + +})(require('../tree')); +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports, features, index) { + var that = this; + + this.index = index; + this._path = path; + this.features = features && new(tree.Value)(features); + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css(\?.*)?$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (e, root) { + if (e) { e.index = index } + that.root = root || new(tree.Ruleset)([], []); + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function (env) { + var features = this.features ? ' ' + this.features.toCSS(env) : ''; + + if (this.css) { + return "@import " + this._path.toCSS() + features + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset, features = this.features && this.features.eval(env); + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return this.features ? new(tree.Directive)('@media', ruleset.rules, this.features.value) : ruleset.rules; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + eval: function (env) { + var result, + that = this, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); + }); + + try { + expression = new(Function)('return (' + expression + ')'); + } catch (e) { + throw { message: "JavaScript evaluation error: `" + expression + "`" , + index: this.index }; + } + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + result = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + if (typeof(result) === 'string') { + return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); + } else if (Array.isArray(result)) { + return new(tree.Anonymous)(result.join(', ')); + } else { + return new(tree.Anonymous)(result); + } + } +}; + +})(require('../tree')); + +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value }, + compare: function (other) { + if (other instanceof tree.Keyword) { + return other.value === this.value ? 0 : 1; + } else { + return -1; + } + } +}; + +tree.True = new(tree.Keyword)('true'); +tree.False = new(tree.Keyword)('false'); + +})(require('../tree')); +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index, filename, important) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; + this.filename = filename; + this.important = important; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, args, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(args, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments, this.important).rules); + match = true; + } catch (e) { + throw { message: e.message, index: e.index, filename: this.filename, stack: e.stack, call: this.index }; + } + } + } + if (match) { + return rules; + } else { + throw { type: 'Runtime', + message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index, filename: this.filename }; + } + } + } + throw { type: 'Name', + message: this.selector.toCSS().trim() + " is undefined", + index: this.index, filename: this.filename }; + } +}; + +tree.mixin.Definition = function (name, params, rules, condition) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.condition = condition; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + evalParams: function (env, args) { + var frame = new(tree.Ruleset)(null, []); + + for (var i = 0, val; i < this.params.length; i++) { + if (this.params[i].name) { + if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); + } else { + throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + return frame; + }, + eval: function (env, args, important) { + var frame = this.evalParams(env, args), context, _arguments = [], rules; + + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); + + rules = important ? + this.rules.map(function (r) { + return new(tree.Rule)(r.name, r.value, '!important', r.index); + }) : this.rules.slice(0); + + return new(tree.Ruleset)(null, rules).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len, frame; + + if (argsLength < this.required) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + if (this.condition && !this.condition.eval({ + frames: [this.evalParams(env, args)].concat(env.frames) + })) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('../tree')); + +(function (tree) { + +tree.Paren = function (node) { + this.value = node; +}; +tree.Paren.prototype = { + toCSS: function (env) { + return '(' + this.value.toCSS(env) + ')'; + }, + eval: function (env) { + return new(tree.Paren)(this.value.eval(env)); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + var that = this; + var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, that.index, true).eval(env).value; + }).replace(/@\{([\w-]+)\}/g, function (_, name) { + var v = new(tree.Variable)('@' + name, that.index).eval(env); + return ('value' in v) ? v.value : v.toCSS(); + }); + return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Rule = function (name, value, important, index, inline) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + this.inline = inline || false; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + (this.inline ? "" : ";"); + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, + this.value.eval(context), + this.important, + this.index, this.inline); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Ruleset = function (selectors, rules) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); + var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0)); + + ruleset.root = this.root; + ruleset.allowImports = this.allowImports; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root || ruleset.allowImports) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > rule.selectors[j].elements.length) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + this.joinSelectors(paths, context, this.selectors); + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + }, + + joinSelectors: function (paths, context, selectors) { + for (var s = 0; s < selectors.length; s++) { + this.joinSelector(paths, context, selectors[s]); + } + }, + + joinSelector: function (paths, context, selector) { + var before = [], after = [], beforeElements = [], + afterElements = [], hasParentSelector = false, el; + + for (var i = 0; i < selector.elements.length; i++) { + el = selector.elements[i]; + if (el.combinator.value.charAt(0) === '&') { + hasParentSelector = true; + } + if (hasParentSelector) afterElements.push(el); + else beforeElements.push(el); + } + + if (! hasParentSelector) { + afterElements = beforeElements; + beforeElements = []; + } + + if (beforeElements.length > 0) { + before.push(new(tree.Selector)(beforeElements)); + } + + if (afterElements.length > 0) { + after.push(new(tree.Selector)(afterElements)); + } + + for (var c = 0; c < context.length; c++) { + paths.push(before.concat(context[c]).concat(after)); + } + } +}; +})(require('../tree')); +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + var len = this.elements.length, + olen = other.elements.length, + max = Math.min(len, olen); + + if (len < olen) { + return false; + } else { + for (var i = 0; i < max; i++) { + if (this.elements[i].value !== other.elements[i].value) { + return false; + } + } + } + return true; +}; +tree.Selector.prototype.eval = function (env) { + return new(tree.Selector)(this.elements.map(function (e) { + return e.eval(env); + })); +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('../tree')); +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { type: 'Name', + message: "variable " + name + " is undefined", + filename: this.file, + index: this.index }; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +tree.jsify = function (obj) { + if (Array.isArray(obj.value) && (obj.value.length > 1)) { + return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; + } else { + return obj.toCSS(false); + } +}; + +})(require('./tree')); +// +// browser.js - client-side engine +// + +var isFileProtocol = (location.protocol === 'file:' || + location.protocol === 'chrome:' || + location.protocol === 'chrome-extension:' || + location.protocol === 'resource:'); + +less.env = less.env || (location.hostname == '127.0.0.1' || + location.hostname == '0.0.0.0' || + location.hostname == 'localhost' || + location.port.length > 0 || + isFileProtocol ? 'development' + : 'production'); + +// Load styles asynchronously (default: false) +// +// This is set to `false` by default, so that the body +// doesn't start loading before the stylesheets are parsed. +// Setting this to `true` can result in flickering. +// +less.async = false; + +// Interval between watch polls +less.poll = less.poll || (isFileProtocol ? 1000 : 1500); + +// +// Watch mode +// +less.watch = function () { return this.watchMode = true }; +less.unwatch = function () { return this.watchMode = false }; + +if (less.env === 'development') { + less.optimization = 0; + + if (/!watch/.test(location.hash)) { + less.watch(); + } + less.watchTimer = setInterval(function () { + if (less.watchMode) { + loadStyleSheets(function (e, root, _, sheet, env) { + if (root) { + createCSS(root.toCSS(), sheet, env.lastModified); + } + }); + } + }, less.poll); +} else { + less.optimization = 3; +} + +var cache; + +try { + cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; +} catch (_) { + cache = null; +} + +// +// Get all tags with the 'rel' attribute set to "stylesheet/less" +// +var links = document.getElementsByTagName('link'); +var typePattern = /^text\/(x-)?less$/; + +less.sheets = []; + +for (var i = 0; i < links.length; i++) { + if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && + (links[i].type.match(typePattern)))) { + less.sheets.push(links[i]); + } +} + + +less.refresh = function (reload) { + var startTime, endTime; + startTime = endTime = new(Date); + + loadStyleSheets(function (e, root, _, sheet, env) { + if (env.local) { + log("loading " + sheet.href + " from cache."); + } else { + log("parsed " + sheet.href + " successfully."); + createCSS(root.toCSS(), sheet, env.lastModified); + } + log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); + (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); + endTime = new(Date); + }, reload); + + loadStyles(); +}; +less.refreshStyles = loadStyles; + +less.refresh(less.env === 'development'); + +function loadStyles() { + var styles = document.getElementsByTagName('style'); + for (var i = 0; i < styles.length; i++) { + if (styles[i].type.match(typePattern)) { + new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { + var css = tree.toCSS(); + var style = styles[i]; + style.type = 'text/css'; + if (style.styleSheet) { + style.styleSheet.cssText = css; + } else { + style.innerHTML = css; + } + }); + } + } +} + +function loadStyleSheets(callback, reload) { + for (var i = 0; i < less.sheets.length; i++) { + loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); + } +} + +function loadStyleSheet(sheet, callback, reload, remaining) { + var url = window.location.href.replace(/[#?].*$/, ''); + var href = sheet.href.replace(/\?.*$/, ''); + var css = cache && cache.getItem(href); + var timestamp = cache && cache.getItem(href + ':timestamp'); + var styles = { css: css, timestamp: timestamp }; + + // Stylesheets in IE don't always return the full path + if (! /^(https?|file):/.test(href)) { + if (href.charAt(0) == "/") { + href = window.location.protocol + "//" + window.location.host + href; + } else { + href = url.slice(0, url.lastIndexOf('/') + 1) + href; + } + } + var filename = href.match(/([^\/]+)$/)[1]; + + xhr(sheet.href, sheet.type, function (data, lastModified) { + if (!reload && styles && lastModified && + (new(Date)(lastModified).valueOf() === + new(Date)(styles.timestamp).valueOf())) { + // Use local copy + createCSS(styles.css, sheet); + callback(null, sheet, { local: true, remaining: remaining }); + } else { + // Use remote copy (re-parse) + try { + new(less.Parser)({ + optimization: less.optimization, + paths: [href.replace(/[\w\.-]+$/, '')], + mime: sheet.type, + filename: filename + }).parse(data, function (e, root) { + if (e) { return error(e, href) } + try { + callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }); + removeNode(document.getElementById('less-error-message:' + extractId(href))); + } catch (e) { + error(e, href); + } + }); + } catch (e) { + error(e, href); + } + } + }, function (status, url) { + throw new(Error)("Couldn't load " + url + " (" + status + ")"); + }); +} + +function extractId(href) { + return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain + .replace(/^\//, '' ) // Remove root / + .replace(/\?.*$/, '' ) // Remove query + .replace(/\.[^\.\/]+$/, '' ) // Remove file extension + .replace(/[^\.\w-]+/g, '-') // Replace illegal characters + .replace(/\./g, ':'); // Replace dots with colons(for valid id) +} + +function createCSS(styles, sheet, lastModified) { + var css; + + // Strip the query-string + var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; + + // If there is no title set, use the filename, minus the extension + var id = 'less:' + (sheet.title || extractId(href)); + + // If the stylesheet doesn't exist, create a new node + if ((css = document.getElementById(id)) === null) { + css = document.createElement('style'); + css.type = 'text/css'; + css.media = sheet.media || 'screen'; + css.id = id; + document.getElementsByTagName('head')[0].appendChild(css); + } + + if (css.styleSheet) { // IE + try { + css.styleSheet.cssText = styles; + } catch (e) { + throw new(Error)("Couldn't reassign styleSheet.cssText."); + } + } else { + (function (node) { + if (css.childNodes.length > 0) { + if (css.firstChild.nodeValue !== node.nodeValue) { + css.replaceChild(node, css.firstChild); + } + } else { + css.appendChild(node); + } + })(document.createTextNode(styles)); + } + + // Don't update the local store if the file wasn't modified + if (lastModified && cache) { + log('saving ' + href + ' to cache.'); + cache.setItem(href, styles); + cache.setItem(href + ':timestamp', lastModified); + } +} + +function xhr(url, type, callback, errback) { + var xhr = getXMLHttpRequest(); + var async = isFileProtocol ? false : less.async; + + if (typeof(xhr.overrideMimeType) === 'function') { + xhr.overrideMimeType('text/css'); + } + xhr.open('GET', url, async); + xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); + xhr.send(null); + + if (isFileProtocol) { + if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { + callback(xhr.responseText); + } else { + errback(xhr.status, url); + } + } else if (async) { + xhr.onreadystatechange = function () { + if (xhr.readyState == 4) { + handleResponse(xhr, callback, errback); + } + }; + } else { + handleResponse(xhr, callback, errback); + } + + function handleResponse(xhr, callback, errback) { + if (xhr.status >= 200 && xhr.status < 300) { + callback(xhr.responseText, + xhr.getResponseHeader("Last-Modified")); + } else if (typeof(errback) === 'function') { + errback(xhr.status, url); + } + } +} + +function getXMLHttpRequest() { + if (window.XMLHttpRequest) { + return new(XMLHttpRequest); + } else { + try { + return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); + } catch (e) { + log("browser doesn't support AJAX."); + return null; + } + } +} + +function removeNode(node) { + return node && node.parentNode.removeChild(node); +} + +function log(str) { + if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } +} + +function error(e, href) { + var id = 'less-error-message:' + extractId(href); + var template = '
  • {content}
    • '; + var elem = document.createElement('div'), timer, content, error = []; + var filename = e.filename || href; + + elem.id = id; + elem.className = "less-error-message"; + + content = '

    ' + (e.message || 'There is an error in your .less file') + + '

    ' + '

    in ' + filename + " "; + + var errorline = function (e, i, classname) { + if (e.extract[i]) { + error.push(template.replace(/\{line\}/, parseInt(e.line) + (i - 1)) + .replace(/\{class\}/, classname) + .replace(/\{content\}/, e.extract[i])); + } + }; + + if (e.stack) { + content += '
    ' + e.stack.split('\n').slice(1).join('
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    ' + + '
      ' + error.join('') + '
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+ for (var i = 0; i < len; i++) { + if (i in this) { + block.call(thisObject, this[i], i, this); + } + } + }; +} +if (!Array.prototype.map) { + Array.prototype.map = function(fun /*, thisp*/) { + var len = this.length >>> 0; + var res = new Array(len); + var thisp = arguments[1]; + + for (var i = 0; i < len; i++) { + if (i in this) { + res[i] = fun.call(thisp, this[i], i, this); + } + } + return res; + }; +} +if (!Array.prototype.filter) { + Array.prototype.filter = function (block /*, thisp */) { + var values = []; + var thisp = arguments[1]; + for (var i = 0; i < this.length; i++) { + if (block.call(thisp, this[i])) { + values.push(this[i]); + } + } + return values; + }; +} +if (!Array.prototype.reduce) { + Array.prototype.reduce = function(fun /*, initial*/) { + var len = this.length >>> 0; + var i = 0; + + // no value to return if no initial value and an empty array + if (len === 0 && arguments.length === 1) throw new TypeError(); + + if (arguments.length >= 2) { + var rv = arguments[1]; + } else { + do { + if (i in this) { + rv = this[i++]; + break; + } + // if array contains no values, no initial value to return + if (++i >= len) throw new TypeError(); + } while (true); + } + for (; i < len; i++) { + if (i in this) { + rv = fun.call(null, rv, this[i], i, this); + } + } + return rv; + }; +} +if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (value /*, fromIndex */ ) { + var length = this.length; + var i = arguments[1] || 0; + + if (!length) return -1; + if (i >= length) return -1; + if (i < 0) i += length; + + for (; i < length; i++) { + if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } + if (value === this[i]) return i; + } + return -1; + }; +} + +// +// Object +// +if (!Object.keys) { + Object.keys = function (object) { + var keys = []; + for (var name in object) { + if (Object.prototype.hasOwnProperty.call(object, name)) { + keys.push(name); + } + } + return keys; + }; +} + +// +// String +// +if (!String.prototype.trim) { + String.prototype.trim = function () { + return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); + }; +} +var less, tree; + +if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { + // Rhino + // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 + if (typeof(window) === 'undefined') { less = {} } + else { less = window.less = {} } + tree = less.tree = {}; + less.mode = 'rhino'; +} else if (typeof(window) === 'undefined') { + // Node.js + less = exports, + tree = require('./tree'); + less.mode = 'node'; +} else { + // Browser + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; + less.mode = 'browser'; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + contents: {}, // Holds the imported file contents + mime: env && env.mime, // MIME type of .less files + error: null, // Error in parsing/evaluating an import + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (e, root, contents) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + that.contents[path] = contents; + + if (e && !that.error) { that.error = e } + callback(e, root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + function expect(arg, msg) { + var result = $(arg); + if (! result) { + error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" + : "unexpected token")); + } else { + return result; + } + } + + function error(msg, type) { + throw { index: i, type: type || 'Syntax', message: msg }; + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + function basename(pathname) { + if (less.mode === 'node') { + return require('path').basename(pathname); + } else { + return pathname.match(/[^\/]+$/)[0]; + } + } + + function getInput(e, env) { + if (e.filename && env.filename && (e.filename !== env.filename)) { + return parser.imports.contents[basename(e.filename)]; + } else { + return input; + } + } + + function getLocation(index, input) { + for (var n = index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, + column: column }; + } + + function LessError(e, env) { + var input = getInput(e, env), + loc = getLocation(e.index, input), + line = loc.line, + col = loc.column, + lines = input.split('\n'); + + this.type = e.type || 'Syntax'; + this.message = e.message; + this.filename = e.filename || env.filename; + this.index = e.index; + this.line = typeof(line) === 'number' ? line + 1 : null; + this.callLine = e.call && (getLocation(e.call, input) + 1); + this.callExtract = lines[getLocation(e.call, input)]; + this.stack = e.stack; + this.column = col; + this.extract = [ + lines[line - 1], + lines[line], + lines[line + 1] + ]; + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)\\]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`\\\r\n]|\\.)*)`/g, + level = 0, + match, + chunk = chunks[0], + inParam; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = string.lastIndex = i; + + if (match = string.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + + if (!inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + switch (c) { + case '{': if (! inParam) { level ++; chunk.push(c); break } + case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } + case '(': if (! inParam) { inParam = true; chunk.push(c); break } + case ')': if ( inParam) { inParam = false; chunk.push(c); break } + default: chunk.push(c); + } + } + if (level > 0) { + error = new(LessError)({ + index: i, + type: 'Parse', + message: "missing closing `}`", + filename: env.filename + }, env); + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + if (error) { + return callback(error); + } + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + try { + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + } catch (e) { + return callback(new(LessError)(e, env)); + } + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = [], importError; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + throw new(LessError)(e, env); + } + + if ((importError = parser.imports.error)) { // Check if there was an error during importing + if (importError instanceof LessError) throw importError; + else throw new(LessError)(importError, env); + } + + if (options.yuicompress && less.mode === 'node') { + return require('./cssmin').compressor.cssmin(css); + } else if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + type: "Parse", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + + if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { + if (tree.colors.hasOwnProperty(k)) { + // detect named color + return new(tree.Color)(tree.colors[k].slice(1)); + } else { + return new(tree.Keyword)(k); + } + } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args, index = i; + + if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args, index, env.filename) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.entities.assignment) || $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // Assignments are argument entities for calls. + // They are present in ie filter properties as shown below. + // + // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) + // + + assignment: function () { + var key, value; + if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { + return new(tree.Assignment)(key, value); + } + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + + expect(')'); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index, env.filename); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e, i)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if ($(this.important)) { + important = true; + } + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args, index, env.filename, important); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value, cond; + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + save(); + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + while (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + value = expect(this.expression, 'expected expression'); + params.push({ name: param.name, value: value }); + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + if (! $(',')) { break } + } + expect(')'); + + if ($(/^when/)) { // Guard + cond = expect(this.conditions, 'expected condition'); + } + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset, cond); + } else { + restore(); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^\(opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + expect(')'); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c, v; + + c = $(this.combinator); + e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || + $('*') || $(this.attribute) || $(/^\([^)@]+\)/); + + if (! e) { + $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v)); + } + + if (e) { return new(tree.Element)(c, e, i) } + + if (c.value && c.value.charAt(0) === '&') { + return new(tree.Element)(c, null, i); + } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === '&') { + match = '&'; + i++; + if(input.charAt(i) === ' ') { + match = '& '; + } + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(match); + } else if (c === ':' && input.charAt(i + 1) === ':') { + i += 2; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)('::'); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path, features, index = i; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url))) { + features = $(this.mediaFeatures); + if ($(';')) { + return new(tree.Import)(path, imports, features, index); + } + } + }, + + mediaFeature: function () { + var nodes = []; + + do { + if (e = $(this.entities.keyword)) { + nodes.push(e); + } else if ($('(')) { + p = $(this.property); + e = $(this.entity); + if ($(')')) { + if (p && e) { + nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); + } else if (e) { + nodes.push(new(tree.Paren)(e)); + } else { + return null; + } + } else { return null } + } + } while (e); + + if (nodes.length > 0) { + return new(tree.Expression)(nodes); + } + }, + + mediaFeatures: function () { + var f, features = []; + while (f = $(this.mediaFeature)) { + features.push(f); + if (! $(',')) { break } + } + return features.length > 0 ? features : null; + }, + + media: function () { + var features; + + if ($(/^@media/)) { + features = $(this.mediaFeatures); + + if (rules = $(this.block)) { + return new(tree.Directive)('@media', rules, features); + } + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types, e, nodes; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import']) || $(this.media)) { + return value; + } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + conditions: function () { + var a, b, index = i, condition; + + if (a = $(this.condition)) { + while ($(',') && (b = $(this.condition))) { + condition = new(tree.Condition)('or', condition || a, b, index); + } + return condition || a; + } + }, + condition: function () { + var a, b, c, op, index = i, negate = false; + + if ($(/^not/)) { negate = true } + expect('('); + if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { + if (op = $(/^(?:>=|=<|[<=>])/)) { + if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { + c = new(tree.Condition)(op, a, b, index, negate); + } else { + error('expected expression'); + } + } else { + c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); + } + expect(')'); + return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (less.mode === 'browser' || less.mode === 'rhino') { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (!/^([a-z]+:)?\//.test(path) && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, function (e) { + if (e && typeof(env.errback) === "function") { + env.errback.call(null, path, paths, callback, env); + } else { + callback.apply(null, arguments); + } + }, true); + }; +} + +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fade: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a = amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + return this._math('round', n); + }, + ceil: function (n) { + return this._math('ceil', n); + }, + floor: function (n) { + return this._math('floor', n); + }, + _math: function (fn, n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math[fn](number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math[fn](n); + } else { + throw { type: "Argument", message: "argument must be a number" }; + } + }, + argb: function (color) { + return new(tree.Anonymous)(color.toARGB()); + + }, + percentage: function (n) { + return new(tree.Dimension)(n.value * 100, '%'); + }, + color: function (n) { + if (n instanceof tree.Quoted) { + return new(tree.Color)(n.value.slice(1)); + } else { + throw { type: "Argument", message: "argument must be a string" }; + } + }, + iscolor: function (n) { + return this._isa(n, tree.Color); + }, + isnumber: function (n) { + return this._isa(n, tree.Dimension); + }, + isstring: function (n) { + return this._isa(n, tree.Quoted); + }, + iskeyword: function (n) { + return this._isa(n, tree.Keyword); + }, + isurl: function (n) { + return this._isa(n, tree.URL); + }, + ispixel: function (n) { + return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; + }, + ispercentage: function (n) { + return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; + }, + isem: function (n) { + return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; + }, + _isa: function (n, Type) { + return (n instanceof Type) ? tree.True : tree.False; + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('./tree')); +(function (tree) { + tree.colors = { + 'aliceblue':'#f0f8ff', + 'antiquewhite':'#faebd7', + 'aqua':'#00ffff', + 'aquamarine':'#7fffd4', + 'azure':'#f0ffff', + 'beige':'#f5f5dc', + 'bisque':'#ffe4c4', + 'black':'#000000', + 'blanchedalmond':'#ffebcd', + 'blue':'#0000ff', + 'blueviolet':'#8a2be2', + 'brown':'#a52a2a', + 'burlywood':'#deb887', + 'cadetblue':'#5f9ea0', + 'chartreuse':'#7fff00', + 'chocolate':'#d2691e', + 'coral':'#ff7f50', + 'cornflowerblue':'#6495ed', + 'cornsilk':'#fff8dc', + 'crimson':'#dc143c', + 'cyan':'#00ffff', + 'darkblue':'#00008b', + 'darkcyan':'#008b8b', + 'darkgoldenrod':'#b8860b', + 'darkgray':'#a9a9a9', + 'darkgrey':'#a9a9a9', + 'darkgreen':'#006400', + 'darkkhaki':'#bdb76b', + 'darkmagenta':'#8b008b', + 'darkolivegreen':'#556b2f', + 'darkorange':'#ff8c00', + 'darkorchid':'#9932cc', + 'darkred':'#8b0000', + 'darksalmon':'#e9967a', + 'darkseagreen':'#8fbc8f', + 'darkslateblue':'#483d8b', + 'darkslategray':'#2f4f4f', + 'darkslategrey':'#2f4f4f', + 'darkturquoise':'#00ced1', + 'darkviolet':'#9400d3', + 'deeppink':'#ff1493', + 'deepskyblue':'#00bfff', + 'dimgray':'#696969', + 'dimgrey':'#696969', + 'dodgerblue':'#1e90ff', + 'firebrick':'#b22222', + 'floralwhite':'#fffaf0', + 'forestgreen':'#228b22', + 'fuchsia':'#ff00ff', + 'gainsboro':'#dcdcdc', + 'ghostwhite':'#f8f8ff', + 'gold':'#ffd700', + 'goldenrod':'#daa520', + 'gray':'#808080', + 'grey':'#808080', + 'green':'#008000', + 'greenyellow':'#adff2f', + 'honeydew':'#f0fff0', + 'hotpink':'#ff69b4', + 'indianred':'#cd5c5c', + 'indigo':'#4b0082', + 'ivory':'#fffff0', + 'khaki':'#f0e68c', + 'lavender':'#e6e6fa', + 'lavenderblush':'#fff0f5', + 'lawngreen':'#7cfc00', + 'lemonchiffon':'#fffacd', + 'lightblue':'#add8e6', + 'lightcoral':'#f08080', + 'lightcyan':'#e0ffff', + 'lightgoldenrodyellow':'#fafad2', + 'lightgray':'#d3d3d3', + 'lightgrey':'#d3d3d3', + 'lightgreen':'#90ee90', + 'lightpink':'#ffb6c1', + 'lightsalmon':'#ffa07a', + 'lightseagreen':'#20b2aa', + 'lightskyblue':'#87cefa', + 'lightslategray':'#778899', + 'lightslategrey':'#778899', + 'lightsteelblue':'#b0c4de', + 'lightyellow':'#ffffe0', + 'lime':'#00ff00', + 'limegreen':'#32cd32', + 'linen':'#faf0e6', + 'magenta':'#ff00ff', + 'maroon':'#800000', + 'mediumaquamarine':'#66cdaa', + 'mediumblue':'#0000cd', + 'mediumorchid':'#ba55d3', + 'mediumpurple':'#9370d8', + 'mediumseagreen':'#3cb371', + 'mediumslateblue':'#7b68ee', + 'mediumspringgreen':'#00fa9a', + 'mediumturquoise':'#48d1cc', + 'mediumvioletred':'#c71585', + 'midnightblue':'#191970', + 'mintcream':'#f5fffa', + 'mistyrose':'#ffe4e1', + 'moccasin':'#ffe4b5', + 'navajowhite':'#ffdead', + 'navy':'#000080', + 'oldlace':'#fdf5e6', + 'olive':'#808000', + 'olivedrab':'#6b8e23', + 'orange':'#ffa500', + 'orangered':'#ff4500', + 'orchid':'#da70d6', + 'palegoldenrod':'#eee8aa', + 'palegreen':'#98fb98', + 'paleturquoise':'#afeeee', + 'palevioletred':'#d87093', + 'papayawhip':'#ffefd5', + 'peachpuff':'#ffdab9', + 'peru':'#cd853f', + 'pink':'#ffc0cb', + 'plum':'#dda0dd', + 'powderblue':'#b0e0e6', + 'purple':'#800080', + 'red':'#ff0000', + 'rosybrown':'#bc8f8f', + 'royalblue':'#4169e1', + 'saddlebrown':'#8b4513', + 'salmon':'#fa8072', + 'sandybrown':'#f4a460', + 'seagreen':'#2e8b57', + 'seashell':'#fff5ee', + 'sienna':'#a0522d', + 'silver':'#c0c0c0', + 'skyblue':'#87ceeb', + 'slateblue':'#6a5acd', + 'slategray':'#708090', + 'slategrey':'#708090', + 'snow':'#fffafa', + 'springgreen':'#00ff7f', + 'steelblue':'#4682b4', + 'tan':'#d2b48c', + 'teal':'#008080', + 'thistle':'#d8bfd8', + 'tomato':'#ff6347', + 'turquoise':'#40e0d0', + 'violet':'#ee82ee', + 'wheat':'#f5deb3', + 'white':'#ffffff', + 'whitesmoke':'#f5f5f5', + 'yellow':'#ffff00', + 'yellowgreen':'#9acd32' + }; +})(require('./tree')); +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Assignment = function (key, val) { + this.key = key; + this.value = val; +}; +tree.Assignment.prototype = { + toCSS: function () { + return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree'));(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args, index, filename) { + this.name = name; + this.args = args; + this.index = index; + this.filename = filename; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + try { + return tree.functions[this.name].apply(tree.functions, args); + } catch (e) { + throw { type: e.type || "Runtime", + message: "error evaluating function `" + this.name + "`" + + (e.message ? ': ' + e.message : ''), + index: this.index, filename: this.filename }; + } + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('../tree')); +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + }, + toARGB: function () { + var argb = [Math.round(this.alpha * 255)].concat(this.rgb); + return '#' + argb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } +}; + + +})(require('../tree')); +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Condition = function (op, l, r, i, negate) { + this.op = op.trim(); + this.lvalue = l; + this.rvalue = r; + this.index = i; + this.negate = negate; +}; +tree.Condition.prototype.eval = function (env) { + var a = this.lvalue.eval(env), + b = this.rvalue.eval(env); + + var i = this.index, result; + + var result = (function (op) { + switch (op) { + case 'and': + return a && b; + case 'or': + return a || b; + default: + if (a.compare) { + result = a.compare(b); + } else if (b.compare) { + result = b.compare(a); + } else { + throw { type: "Type", + message: "Unable to perform comparison", + index: i }; + } + switch (result) { + case -1: return op === '<' || op === '=<'; + case 0: return op === '=' || op === '>=' || op === '=<'; + case 1: return op === '>' || op === '>='; + } + } + })(this.op); + return this.negate ? !result : result; +}; + +})(require('../tree')); +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + }, + + // TODO: Perform unit conversion before comparing + compare: function (other) { + if (other instanceof tree.Dimension) { + if (other.value > this.value) { + return -1; + } else if (other.value < this.value) { + return 1; + } else { + return 0; + } + } else { + return -1; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Directive = function (name, value, features) { + this.name = name; + this.features = features && new(tree.Value)(features); + + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + this.ruleset.allowImports = true; + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + var features = this.features ? ' ' + this.features.toCSS(env) : ''; + + if (this.ruleset) { + this.ruleset.root = true; + return this.name + features + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + this.features = this.features && this.features.eval(env); + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('../tree')); +(function (tree) { + +tree.Element = function (combinator, value, index) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + + if (typeof(value) === 'string') { + this.value = value.trim(); + } else if (value) { + this.value = value; + } else { + this.value = ""; + } + this.index = index; +}; +tree.Element.prototype.eval = function (env) { + return new(tree.Element)(this.combinator, + this.value.eval ? this.value.eval(env) : this.value, + this.index); +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value); +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else if (value === '& ') { + this.value = '& '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + '& ' : ' ', + ':' : ' :', + '::': '::', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('../tree')); +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return this; + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS ? e.toCSS(env) : ''; + }).join(' '); + } +}; + +})(require('../tree')); +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports, features, index) { + var that = this; + + this.index = index; + this._path = path; + this.features = features && new(tree.Value)(features); + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css(\?.*)?$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (e, root) { + if (e) { e.index = index } + that.root = root || new(tree.Ruleset)([], []); + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function (env) { + var features = this.features ? ' ' + this.features.toCSS(env) : ''; + + if (this.css) { + return "@import " + this._path.toCSS() + features + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset, features = this.features && this.features.eval(env); + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return this.features ? new(tree.Directive)('@media', ruleset.rules, this.features.value) : ruleset.rules; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + eval: function (env) { + var result, + that = this, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); + }); + + try { + expression = new(Function)('return (' + expression + ')'); + } catch (e) { + throw { message: "JavaScript evaluation error: `" + expression + "`" , + index: this.index }; + } + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + result = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + if (typeof(result) === 'string') { + return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); + } else if (Array.isArray(result)) { + return new(tree.Anonymous)(result.join(', ')); + } else { + return new(tree.Anonymous)(result); + } + } +}; + +})(require('../tree')); + +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value }, + compare: function (other) { + if (other instanceof tree.Keyword) { + return other.value === this.value ? 0 : 1; + } else { + return -1; + } + } +}; + +tree.True = new(tree.Keyword)('true'); +tree.False = new(tree.Keyword)('false'); + +})(require('../tree')); +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index, filename, important) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; + this.filename = filename; + this.important = important; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, args, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(args, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments, this.important).rules); + match = true; + } catch (e) { + throw { message: e.message, index: e.index, filename: this.filename, stack: e.stack, call: this.index }; + } + } + } + if (match) { + return rules; + } else { + throw { type: 'Runtime', + message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index, filename: this.filename }; + } + } + } + throw { type: 'Name', + message: this.selector.toCSS().trim() + " is undefined", + index: this.index, filename: this.filename }; + } +}; + +tree.mixin.Definition = function (name, params, rules, condition) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.condition = condition; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + evalParams: function (env, args) { + var frame = new(tree.Ruleset)(null, []); + + for (var i = 0, val; i < this.params.length; i++) { + if (this.params[i].name) { + if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); + } else { + throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + return frame; + }, + eval: function (env, args, important) { + var frame = this.evalParams(env, args), context, _arguments = [], rules; + + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); + + rules = important ? + this.rules.map(function (r) { + return new(tree.Rule)(r.name, r.value, '!important', r.index); + }) : this.rules.slice(0); + + return new(tree.Ruleset)(null, rules).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len, frame; + + if (argsLength < this.required) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + if (this.condition && !this.condition.eval({ + frames: [this.evalParams(env, args)].concat(env.frames) + })) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('../tree')); + +(function (tree) { + +tree.Paren = function (node) { + this.value = node; +}; +tree.Paren.prototype = { + toCSS: function (env) { + return '(' + this.value.toCSS(env) + ')'; + }, + eval: function (env) { + return new(tree.Paren)(this.value.eval(env)); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + var that = this; + var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, that.index, true).eval(env).value; + }).replace(/@\{([\w-]+)\}/g, function (_, name) { + var v = new(tree.Variable)('@' + name, that.index).eval(env); + return ('value' in v) ? v.value : v.toCSS(); + }); + return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Rule = function (name, value, important, index, inline) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + this.inline = inline || false; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + (this.inline ? "" : ";"); + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, + this.value.eval(context), + this.important, + this.index, this.inline); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Ruleset = function (selectors, rules) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); + var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0)); + + ruleset.root = this.root; + ruleset.allowImports = this.allowImports; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root || ruleset.allowImports) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > rule.selectors[j].elements.length) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + this.joinSelectors(paths, context, this.selectors); + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join( env.compress ? ',' : ',\n'); + + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + }, + + joinSelectors: function (paths, context, selectors) { + for (var s = 0; s < selectors.length; s++) { + this.joinSelector(paths, context, selectors[s]); + } + }, + + joinSelector: function (paths, context, selector) { + var before = [], after = [], beforeElements = [], + afterElements = [], hasParentSelector = false, el; + + for (var i = 0; i < selector.elements.length; i++) { + el = selector.elements[i]; + if (el.combinator.value.charAt(0) === '&') { + hasParentSelector = true; + } + if (hasParentSelector) afterElements.push(el); + else beforeElements.push(el); + } + + if (! hasParentSelector) { + afterElements = beforeElements; + beforeElements = []; + } + + if (beforeElements.length > 0) { + before.push(new(tree.Selector)(beforeElements)); + } + + if (afterElements.length > 0) { + after.push(new(tree.Selector)(afterElements)); + } + + for (var c = 0; c < context.length; c++) { + paths.push(before.concat(context[c]).concat(after)); + } + } +}; +})(require('../tree')); +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + var len = this.elements.length, + olen = other.elements.length, + max = Math.min(len, olen); + + if (len < olen) { + return false; + } else { + for (var i = 0; i < max; i++) { + if (this.elements[i].value !== other.elements[i].value) { + return false; + } + } + } + return true; +}; +tree.Selector.prototype.eval = function (env) { + return new(tree.Selector)(this.elements.map(function (e) { + return e.eval(env); + })); +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('../tree')); +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { type: 'Name', + message: "variable " + name + " is undefined", + filename: this.file, + index: this.index }; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +tree.jsify = function (obj) { + if (Array.isArray(obj.value) && (obj.value.length > 1)) { + return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; + } else { + return obj.toCSS(false); + } +}; + +})(require('./tree')); +// +// browser.js - client-side engine +// + +var isFileProtocol = (location.protocol === 'file:' || + location.protocol === 'chrome:' || + location.protocol === 'chrome-extension:' || + location.protocol === 'resource:'); + +less.env = less.env || (location.hostname == '127.0.0.1' || + location.hostname == '0.0.0.0' || + location.hostname == 'localhost' || + location.port.length > 0 || + isFileProtocol ? 'development' + : 'production'); + +// Load styles asynchronously (default: false) +// +// This is set to `false` by default, so that the body +// doesn't start loading before the stylesheets are parsed. +// Setting this to `true` can result in flickering. +// +less.async = false; + +// Interval between watch polls +less.poll = less.poll || (isFileProtocol ? 1000 : 1500); + +// +// Watch mode +// +less.watch = function () { return this.watchMode = true }; +less.unwatch = function () { return this.watchMode = false }; + +if (less.env === 'development') { + less.optimization = 0; + + if (/!watch/.test(location.hash)) { + less.watch(); + } + less.watchTimer = setInterval(function () { + if (less.watchMode) { + loadStyleSheets(function (e, root, _, sheet, env) { + if (root) { + createCSS(root.toCSS(), sheet, env.lastModified); + } + }); + } + }, less.poll); +} else { + less.optimization = 3; +} + +var cache; + +try { + cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; +} catch (_) { + cache = null; +} + +// +// Get all tags with the 'rel' attribute set to "stylesheet/less" +// +var links = document.getElementsByTagName('link'); +var typePattern = /^text\/(x-)?less$/; + +less.sheets = []; + +for (var i = 0; i < links.length; i++) { + if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && + (links[i].type.match(typePattern)))) { + less.sheets.push(links[i]); + } +} + + +less.refresh = function (reload) { + var startTime, endTime; + startTime = endTime = new(Date); + + loadStyleSheets(function (e, root, _, sheet, env) { + if (env.local) { + log("loading " + sheet.href + " from cache."); + } else { + log("parsed " + sheet.href + " successfully."); + createCSS(root.toCSS(), sheet, env.lastModified); + } + log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); + (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); + endTime = new(Date); + }, reload); + + loadStyles(); +}; +less.refreshStyles = loadStyles; + +less.refresh(less.env === 'development'); + +function loadStyles() { + var styles = document.getElementsByTagName('style'); + for (var i = 0; i < styles.length; i++) { + if (styles[i].type.match(typePattern)) { + new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { + var css = tree.toCSS(); + var style = styles[i]; + style.type = 'text/css'; + if (style.styleSheet) { + style.styleSheet.cssText = css; + } else { + style.innerHTML = css; + } + }); + } + } +} + +function loadStyleSheets(callback, reload) { + for (var i = 0; i < less.sheets.length; i++) { + loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); + } +} + +function loadStyleSheet(sheet, callback, reload, remaining) { + var url = window.location.href.replace(/[#?].*$/, ''); + var href = sheet.href.replace(/\?.*$/, ''); + var css = cache && cache.getItem(href); + var timestamp = cache && cache.getItem(href + ':timestamp'); + var styles = { css: css, timestamp: timestamp }; + + // Stylesheets in IE don't always return the full path + if (! /^(https?|file):/.test(href)) { + if (href.charAt(0) == "/") { + href = window.location.protocol + "//" + window.location.host + href; + } else { + href = url.slice(0, url.lastIndexOf('/') + 1) + href; + } + } + var filename = href.match(/([^\/]+)$/)[1]; + + xhr(sheet.href, sheet.type, function (data, lastModified) { + if (!reload && styles && lastModified && + (new(Date)(lastModified).valueOf() === + new(Date)(styles.timestamp).valueOf())) { + // Use local copy + createCSS(styles.css, sheet); + callback(null, null, data, sheet, { local: true, remaining: remaining }); + } else { + // Use remote copy (re-parse) + try { + new(less.Parser)({ + optimization: less.optimization, + paths: [href.replace(/[\w\.-]+$/, '')], + mime: sheet.type, + filename: filename + }).parse(data, function (e, root) { + if (e) { return error(e, href) } + try { + callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }); + removeNode(document.getElementById('less-error-message:' + extractId(href))); + } catch (e) { + error(e, href); + } + }); + } catch (e) { + error(e, href); + } + } + }, function (status, url) { + throw new(Error)("Couldn't load " + url + " (" + status + ")"); + }); +} + +function extractId(href) { + return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain + .replace(/^\//, '' ) // Remove root / + .replace(/\?.*$/, '' ) // Remove query + .replace(/\.[^\.\/]+$/, '' ) // Remove file extension + .replace(/[^\.\w-]+/g, '-') // Replace illegal characters + .replace(/\./g, ':'); // Replace dots with colons(for valid id) +} + +function createCSS(styles, sheet, lastModified) { + var css; + + // Strip the query-string + var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; + + // If there is no title set, use the filename, minus the extension + var id = 'less:' + (sheet.title || extractId(href)); + + // If the stylesheet doesn't exist, create a new node + if ((css = document.getElementById(id)) === null) { + css = document.createElement('style'); + css.type = 'text/css'; + css.media = sheet.media || 'screen'; + css.id = id; + document.getElementsByTagName('head')[0].appendChild(css); + } + + if (css.styleSheet) { // IE + try { + css.styleSheet.cssText = styles; + } catch (e) { + throw new(Error)("Couldn't reassign styleSheet.cssText."); + } + } else { + (function (node) { + if (css.childNodes.length > 0) { + if (css.firstChild.nodeValue !== node.nodeValue) { + css.replaceChild(node, css.firstChild); + } + } else { + css.appendChild(node); + } + })(document.createTextNode(styles)); + } + + // Don't update the local store if the file wasn't modified + if (lastModified && cache) { + log('saving ' + href + ' to cache.'); + cache.setItem(href, styles); + cache.setItem(href + ':timestamp', lastModified); + } +} + +function xhr(url, type, callback, errback) { + var xhr = getXMLHttpRequest(); + var async = isFileProtocol ? false : less.async; + + if (typeof(xhr.overrideMimeType) === 'function') { + xhr.overrideMimeType('text/css'); + } + xhr.open('GET', url, async); + xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); + xhr.send(null); + + if (isFileProtocol) { + if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { + callback(xhr.responseText); + } else { + errback(xhr.status, url); + } + } else if (async) { + xhr.onreadystatechange = function () { + if (xhr.readyState == 4) { + handleResponse(xhr, callback, errback); + } + }; + } else { + handleResponse(xhr, callback, errback); + } + + function handleResponse(xhr, callback, errback) { + if (xhr.status >= 200 && xhr.status < 300) { + callback(xhr.responseText, + xhr.getResponseHeader("Last-Modified")); + } else if (typeof(errback) === 'function') { + errback(xhr.status, url); + } + } +} + +function getXMLHttpRequest() { + if (window.XMLHttpRequest) { + return new(XMLHttpRequest); + } else { + try { + return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); + } catch (e) { + log("browser doesn't support AJAX."); + return null; + } + } +} + +function removeNode(node) { + return node && node.parentNode.removeChild(node); +} + +function log(str) { + if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } +} + +function error(e, href) { + var id = 'less-error-message:' + extractId(href); + var template = '
  • {content}
    • '; + var elem = document.createElement('div'), timer, content, error = []; + var filename = e.filename || href; + + elem.id = id; + elem.className = "less-error-message"; + + content = '

    ' + (e.message || 'There is an error in your .less file') + + '

    ' + '

    in ' + filename + " "; + + var errorline = function (e, i, classname) { + if (e.extract[i]) { + error.push(template.replace(/\{line\}/, parseInt(e.line) + (i - 1)) + .replace(/\{class\}/, classname) + .replace(/\{content\}/, e.extract[i])); + } + }; + + if (e.stack) { + content += '
    ' + e.stack.split('\n').slice(1).join('
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    ' + + '
      ' + error.join('') + '
    '; + } + elem.innerHTML = content; + + // CSS for error messages + createCSS([ + '.less-error-message ul, .less-error-message li {', + 'list-style-type: none;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'margin: 0;', + '}', + '.less-error-message label {', + 'font-size: 12px;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'color: #cc7777;', + '}', + '.less-error-message pre {', + 'color: #dd6666;', + 'padding: 4px 0;', + 'margin: 0;', + 'display: inline-block;', + '}', + '.less-error-message pre.line {', + 'color: #ff0000;', + '}', + '.less-error-message h3 {', + 'font-size: 20px;', + 'font-weight: bold;', + 'padding: 15px 0 5px 0;', + 'margin: 0;', + '}', + '.less-error-message a {', + 'color: #10a', + '}', + '.less-error-message .error {', + 'color: red;', + 'font-weight: bold;', + 'padding-bottom: 2px;', + 'border-bottom: 1px dashed red;', + '}' + ].join('\n'), { title: 'error-message' }); + + elem.style.cssText = [ + "font-family: Arial, sans-serif", + "border: 1px solid #e00", + "background-color: #eee", + "border-radius: 5px", + "-webkit-border-radius: 5px", + "-moz-border-radius: 5px", + "color: #e00", + "padding: 15px", + "margin-bottom: 15px" + ].join(';'); + + if (less.env == 'development') { + timer = setInterval(function () { + if (document.body) { + if (document.getElementById(id)) { + document.body.replaceChild(elem, document.getElementById(id)); + } else { + document.body.insertBefore(elem, document.body.firstChild); + } + clearInterval(timer); + } + }, 10); + } +} + +})(window); diff --git a/node_modules/less-brunch/node_modules/less/dist/less-1.2.2.min.js b/node_modules/less-brunch/node_modules/less/dist/less-1.2.2.min.js new file mode 100644 index 0000000..55042ec --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/dist/less-1.2.2.min.js @@ -0,0 +1,9 @@ +// +// LESS - Leaner CSS v1.2.2 +// http://lesscss.org +// +// Copyright (c) 2009-2011, Alexis Sellier +// Licensed under the Apache 2.0 License. +// +(function(a,b){function c(b){return a.less[b.split("/")[1]]}function m(){var a=document.getElementsByTagName("style");for(var b=0;b0?d.firstChild.nodeValue!==a.nodeValue&&d.replaceChild(a,d.firstChild):d.appendChild(a)})(document.createTextNode(a));c&&h&&(v("saving "+e+" to cache."),h.setItem(e,a),h.setItem(e+":timestamp",c))}function s(a,b,c,e){function i(b,c,d){b.status>=200&&b.status<300?c(b.responseText,b.getResponseHeader("Last-Modified")):typeof d=="function"&&d(b.status,a)}var f=t(),h=g?!1:d.async;typeof f.overrideMimeType=="function"&&f.overrideMimeType("text/css"),f.open("GET",a,h),f.setRequestHeader("Accept",b||"text/x-less, text/css; q=0.9, */*; q=0.5"),f.send(null),g?f.status===0||f.status>=200&&f.status<300?c(f.responseText):e(f.status,a):h?f.onreadystatechange=function(){f.readyState==4&&i(f,c,e)}:i(f,c,e)}function t(){if(a.XMLHttpRequest)return new XMLHttpRequest;try{return new ActiveXObject("MSXML2.XMLHTTP.3.0")}catch(b){return v("browser doesn't support AJAX."),null}}function u(a){return a&&a.parentNode.removeChild(a)}function v(a){d.env=="development"&&typeof console!="undefined"&&console.log("less: "+a)}function w(a,b){var c="less-error-message:"+q(b),e='
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+ for (var i = 0; i < len; i++) { + if (i in this) { + block.call(thisObject, this[i], i, this); + } + } + }; +} +if (!Array.prototype.map) { + Array.prototype.map = function(fun /*, thisp*/) { + var len = this.length >>> 0; + var res = new Array(len); + var thisp = arguments[1]; + + for (var i = 0; i < len; i++) { + if (i in this) { + res[i] = fun.call(thisp, this[i], i, this); + } + } + return res; + }; +} +if (!Array.prototype.filter) { + Array.prototype.filter = function (block /*, thisp */) { + var values = []; + var thisp = arguments[1]; + for (var i = 0; i < this.length; i++) { + if (block.call(thisp, this[i])) { + values.push(this[i]); + } + } + return values; + }; +} +if (!Array.prototype.reduce) { + Array.prototype.reduce = function(fun /*, initial*/) { + var len = this.length >>> 0; + var i = 0; + + // no value to return if no initial value and an empty array + if (len === 0 && arguments.length === 1) throw new TypeError(); + + if (arguments.length >= 2) { + var rv = arguments[1]; + } else { + do { + if (i in this) { + rv = this[i++]; + break; + } + // if array contains no values, no initial value to return + if (++i >= len) throw new TypeError(); + } while (true); + } + for (; i < len; i++) { + if (i in this) { + rv = fun.call(null, rv, this[i], i, this); + } + } + return rv; + }; +} +if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (value /*, fromIndex */ ) { + var length = this.length; + var i = arguments[1] || 0; + + if (!length) return -1; + if (i >= length) return -1; + if (i < 0) i += length; + + for (; i < length; i++) { + if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } + if (value === this[i]) return i; + } + return -1; + }; +} + +// +// Object +// +if (!Object.keys) { + Object.keys = function (object) { + var keys = []; + for (var name in object) { + if (Object.prototype.hasOwnProperty.call(object, name)) { + keys.push(name); + } + } + return keys; + }; +} + +// +// String +// +if (!String.prototype.trim) { + String.prototype.trim = function () { + return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); + }; +} +var less, tree; + +if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { + // Rhino + // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 + if (typeof(window) === 'undefined') { less = {} } + else { less = window.less = {} } + tree = less.tree = {}; + less.mode = 'rhino'; +} else if (typeof(window) === 'undefined') { + // Node.js + less = exports, + tree = require('./tree'); + less.mode = 'node'; +} else { + // Browser + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; + less.mode = 'browser'; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + contents: {}, // Holds the imported file contents + mime: env && env.mime, // MIME type of .less files + error: null, // Error in parsing/evaluating an import + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (e, root, contents) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + that.contents[path] = contents; + + if (e && !that.error) { that.error = e } + callback(e, root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + function expect(arg, msg) { + var result = $(arg); + if (! result) { + error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" + : "unexpected token")); + } else { + return result; + } + } + + function error(msg, type) { + throw { index: i, type: type || 'Syntax', message: msg }; + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + function basename(pathname) { + if (less.mode === 'node') { + return require('path').basename(pathname); + } else { + return pathname.match(/[^\/]+$/)[0]; + } + } + + function getInput(e, env) { + if (e.filename && env.filename && (e.filename !== env.filename)) { + return parser.imports.contents[basename(e.filename)]; + } else { + return input; + } + } + + function getLocation(index, input) { + for (var n = index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, + column: column }; + } + + function LessError(e, env) { + var input = getInput(e, env), + loc = getLocation(e.index, input), + line = loc.line, + col = loc.column, + lines = input.split('\n'); + + this.type = e.type || 'Syntax'; + this.message = e.message; + this.filename = e.filename || env.filename; + this.index = e.index; + this.line = typeof(line) === 'number' ? line + 1 : null; + this.callLine = e.call && (getLocation(e.call, input).line + 1); + this.callExtract = lines[getLocation(e.call, input).line]; + this.stack = e.stack; + this.column = col; + this.extract = [ + lines[line - 1], + lines[line], + lines[line + 1] + ]; + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)\\]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`\\\r\n]|\\.)*)`/g, + level = 0, + match, + chunk = chunks[0], + inParam; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = string.lastIndex = i; + + if (match = string.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + + if (!inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + switch (c) { + case '{': if (! inParam) { level ++; chunk.push(c); break } + case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } + case '(': if (! inParam) { inParam = true; chunk.push(c); break } + case ')': if ( inParam) { inParam = false; chunk.push(c); break } + default: chunk.push(c); + } + } + if (level > 0) { + error = new(LessError)({ + index: i, + type: 'Parse', + message: "missing closing `}`", + filename: env.filename + }, env); + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + if (error) { + return callback(error); + } + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + try { + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + } catch (e) { + return callback(new(LessError)(e, env)); + } + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = [], importError; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + throw new(LessError)(e, env); + } + + if ((importError = parser.imports.error)) { // Check if there was an error during importing + if (importError instanceof LessError) throw importError; + else throw new(LessError)(importError, env); + } + + if (options.yuicompress && less.mode === 'node') { + return require('./cssmin').compressor.cssmin(css); + } else if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + type: "Parse", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + + if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { + if (tree.colors.hasOwnProperty(k)) { + // detect named color + return new(tree.Color)(tree.colors[k].slice(1)); + } else { + return new(tree.Keyword)(k); + } + } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args, index = i; + + if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args, index, env.filename) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.entities.assignment) || $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // Assignments are argument entities for calls. + // They are present in ie filter properties as shown below. + // + // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) + // + + assignment: function () { + var key, value; + if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { + return new(tree.Assignment)(key, value); + } + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + + expect(')'); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index, env.filename); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e, i)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if ($(this.important)) { + important = true; + } + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args || [], index, env.filename, important); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value, cond, variadic = false; + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + save(); + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + do { + if (input.charAt(i) === '.' && $(/^\.{3}/)) { + variadic = true; + break; + } else if (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + value = expect(this.expression, 'expected expression'); + params.push({ name: param.name, value: value }); + } else if ($(/^\.{3}/)) { + params.push({ name: param.name, variadic: true }); + variadic = true; + break; + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + } else { + break; + } + } while ($(',')) + + expect(')'); + + if ($(/^when/)) { // Guard + cond = expect(this.conditions, 'expected condition'); + } + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); + } else { + restore(); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^\(opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + expect(')'); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c, v; + + c = $(this.combinator); + e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || + $('*') || $(this.attribute) || $(/^\([^)@]+\)/); + + if (! e) { + $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v)); + } + + if (e) { return new(tree.Element)(c, e, i) } + + if (c.value && c.value.charAt(0) === '&') { + return new(tree.Element)(c, null, i); + } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === '&') { + match = '&'; + i++; + if(input.charAt(i) === ' ') { + match = '& '; + } + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(match); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + if ($('(')) { + sel = $(this.entity); + expect(')'); + return new(tree.Selector)([new(tree.Element)('', sel, i)]); + } + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules, env.strictImports); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path, features, index = i; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url))) { + features = $(this.mediaFeatures); + if ($(';')) { + return new(tree.Import)(path, imports, features, index); + } + } + }, + + mediaFeature: function () { + var e, p, nodes = []; + + do { + if (e = $(this.entities.keyword)) { + nodes.push(e); + } else if ($('(')) { + p = $(this.property); + e = $(this.entity); + if ($(')')) { + if (p && e) { + nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); + } else if (e) { + nodes.push(new(tree.Paren)(e)); + } else { + return null; + } + } else { return null } + } + } while (e); + + if (nodes.length > 0) { + return new(tree.Expression)(nodes); + } + }, + + mediaFeatures: function () { + var e, features = []; + + do { + if (e = $(this.mediaFeature)) { + features.push(e); + if (! $(',')) { break } + } else if (e = $(this.entities.variable)) { + features.push(e); + if (! $(',')) { break } + } + } while (e); + + return features.length > 0 ? features : null; + }, + + media: function () { + var features, rules; + + if ($(/^@media/)) { + features = $(this.mediaFeatures); + + if (rules = $(this.block)) { + return new(tree.Media)(rules, features); + } + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types, e, nodes; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import']) || $(this.media)) { + return value; + } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + conditions: function () { + var a, b, index = i, condition; + + if (a = $(this.condition)) { + while ($(',') && (b = $(this.condition))) { + condition = new(tree.Condition)('or', condition || a, b, index); + } + return condition || a; + } + }, + condition: function () { + var a, b, c, op, index = i, negate = false; + + if ($(/^not/)) { negate = true } + expect('('); + if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { + if (op = $(/^(?:>=|=<|[<=>])/)) { + if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { + c = new(tree.Condition)(op, a, b, index, negate); + } else { + error('expected expression'); + } + } else { + c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); + } + expect(')'); + return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (less.mode === 'browser' || less.mode === 'rhino') { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (!/^([a-z]+:)?\//.test(path) && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, function (e) { + if (e && typeof(env.errback) === "function") { + env.errback.call(null, path, paths, callback, env); + } else { + callback.apply(null, arguments); + } + }, true); + }; +} + +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fade: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a = amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + return this._math('round', n); + }, + ceil: function (n) { + return this._math('ceil', n); + }, + floor: function (n) { + return this._math('floor', n); + }, + _math: function (fn, n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math[fn](number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math[fn](n); + } else { + throw { type: "Argument", message: "argument must be a number" }; + } + }, + argb: function (color) { + return new(tree.Anonymous)(color.toARGB()); + + }, + percentage: function (n) { + return new(tree.Dimension)(n.value * 100, '%'); + }, + color: function (n) { + if (n instanceof tree.Quoted) { + return new(tree.Color)(n.value.slice(1)); + } else { + throw { type: "Argument", message: "argument must be a string" }; + } + }, + iscolor: function (n) { + return this._isa(n, tree.Color); + }, + isnumber: function (n) { + return this._isa(n, tree.Dimension); + }, + isstring: function (n) { + return this._isa(n, tree.Quoted); + }, + iskeyword: function (n) { + return this._isa(n, tree.Keyword); + }, + isurl: function (n) { + return this._isa(n, tree.URL); + }, + ispixel: function (n) { + return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; + }, + ispercentage: function (n) { + return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; + }, + isem: function (n) { + return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; + }, + _isa: function (n, Type) { + return (n instanceof Type) ? tree.True : tree.False; + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('./tree')); +(function (tree) { + tree.colors = { + 'aliceblue':'#f0f8ff', + 'antiquewhite':'#faebd7', + 'aqua':'#00ffff', + 'aquamarine':'#7fffd4', + 'azure':'#f0ffff', + 'beige':'#f5f5dc', + 'bisque':'#ffe4c4', + 'black':'#000000', + 'blanchedalmond':'#ffebcd', + 'blue':'#0000ff', + 'blueviolet':'#8a2be2', + 'brown':'#a52a2a', + 'burlywood':'#deb887', + 'cadetblue':'#5f9ea0', + 'chartreuse':'#7fff00', + 'chocolate':'#d2691e', + 'coral':'#ff7f50', + 'cornflowerblue':'#6495ed', + 'cornsilk':'#fff8dc', + 'crimson':'#dc143c', + 'cyan':'#00ffff', + 'darkblue':'#00008b', + 'darkcyan':'#008b8b', + 'darkgoldenrod':'#b8860b', + 'darkgray':'#a9a9a9', + 'darkgrey':'#a9a9a9', + 'darkgreen':'#006400', + 'darkkhaki':'#bdb76b', + 'darkmagenta':'#8b008b', + 'darkolivegreen':'#556b2f', + 'darkorange':'#ff8c00', + 'darkorchid':'#9932cc', + 'darkred':'#8b0000', + 'darksalmon':'#e9967a', + 'darkseagreen':'#8fbc8f', + 'darkslateblue':'#483d8b', + 'darkslategray':'#2f4f4f', + 'darkslategrey':'#2f4f4f', + 'darkturquoise':'#00ced1', + 'darkviolet':'#9400d3', + 'deeppink':'#ff1493', + 'deepskyblue':'#00bfff', + 'dimgray':'#696969', + 'dimgrey':'#696969', + 'dodgerblue':'#1e90ff', + 'firebrick':'#b22222', + 'floralwhite':'#fffaf0', + 'forestgreen':'#228b22', + 'fuchsia':'#ff00ff', + 'gainsboro':'#dcdcdc', + 'ghostwhite':'#f8f8ff', + 'gold':'#ffd700', + 'goldenrod':'#daa520', + 'gray':'#808080', + 'grey':'#808080', + 'green':'#008000', + 'greenyellow':'#adff2f', + 'honeydew':'#f0fff0', + 'hotpink':'#ff69b4', + 'indianred':'#cd5c5c', + 'indigo':'#4b0082', + 'ivory':'#fffff0', + 'khaki':'#f0e68c', + 'lavender':'#e6e6fa', + 'lavenderblush':'#fff0f5', + 'lawngreen':'#7cfc00', + 'lemonchiffon':'#fffacd', + 'lightblue':'#add8e6', + 'lightcoral':'#f08080', + 'lightcyan':'#e0ffff', + 'lightgoldenrodyellow':'#fafad2', + 'lightgray':'#d3d3d3', + 'lightgrey':'#d3d3d3', + 'lightgreen':'#90ee90', + 'lightpink':'#ffb6c1', + 'lightsalmon':'#ffa07a', + 'lightseagreen':'#20b2aa', + 'lightskyblue':'#87cefa', + 'lightslategray':'#778899', + 'lightslategrey':'#778899', + 'lightsteelblue':'#b0c4de', + 'lightyellow':'#ffffe0', + 'lime':'#00ff00', + 'limegreen':'#32cd32', + 'linen':'#faf0e6', + 'magenta':'#ff00ff', + 'maroon':'#800000', + 'mediumaquamarine':'#66cdaa', + 'mediumblue':'#0000cd', + 'mediumorchid':'#ba55d3', + 'mediumpurple':'#9370d8', + 'mediumseagreen':'#3cb371', + 'mediumslateblue':'#7b68ee', + 'mediumspringgreen':'#00fa9a', + 'mediumturquoise':'#48d1cc', + 'mediumvioletred':'#c71585', + 'midnightblue':'#191970', + 'mintcream':'#f5fffa', + 'mistyrose':'#ffe4e1', + 'moccasin':'#ffe4b5', + 'navajowhite':'#ffdead', + 'navy':'#000080', + 'oldlace':'#fdf5e6', + 'olive':'#808000', + 'olivedrab':'#6b8e23', + 'orange':'#ffa500', + 'orangered':'#ff4500', + 'orchid':'#da70d6', + 'palegoldenrod':'#eee8aa', + 'palegreen':'#98fb98', + 'paleturquoise':'#afeeee', + 'palevioletred':'#d87093', + 'papayawhip':'#ffefd5', + 'peachpuff':'#ffdab9', + 'peru':'#cd853f', + 'pink':'#ffc0cb', + 'plum':'#dda0dd', + 'powderblue':'#b0e0e6', + 'purple':'#800080', + 'red':'#ff0000', + 'rosybrown':'#bc8f8f', + 'royalblue':'#4169e1', + 'saddlebrown':'#8b4513', + 'salmon':'#fa8072', + 'sandybrown':'#f4a460', + 'seagreen':'#2e8b57', + 'seashell':'#fff5ee', + 'sienna':'#a0522d', + 'silver':'#c0c0c0', + 'skyblue':'#87ceeb', + 'slateblue':'#6a5acd', + 'slategray':'#708090', + 'slategrey':'#708090', + 'snow':'#fffafa', + 'springgreen':'#00ff7f', + 'steelblue':'#4682b4', + 'tan':'#d2b48c', + 'teal':'#008080', + 'thistle':'#d8bfd8', + 'tomato':'#ff6347', + 'turquoise':'#40e0d0', + 'violet':'#ee82ee', + 'wheat':'#f5deb3', + 'white':'#ffffff', + 'whitesmoke':'#f5f5f5', + 'yellow':'#ffff00', + 'yellowgreen':'#9acd32' + }; +})(require('./tree')); +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Assignment = function (key, val) { + this.key = key; + this.value = val; +}; +tree.Assignment.prototype = { + toCSS: function () { + return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree'));(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args, index, filename) { + this.name = name; + this.args = args; + this.index = index; + this.filename = filename; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + try { + return tree.functions[this.name].apply(tree.functions, args); + } catch (e) { + throw { type: e.type || "Runtime", + message: "error evaluating function `" + this.name + "`" + + (e.message ? ': ' + e.message : ''), + index: this.index, filename: this.filename }; + } + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('../tree')); +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + }, + toARGB: function () { + var argb = [Math.round(this.alpha * 255)].concat(this.rgb); + return '#' + argb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } +}; + + +})(require('../tree')); +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Condition = function (op, l, r, i, negate) { + this.op = op.trim(); + this.lvalue = l; + this.rvalue = r; + this.index = i; + this.negate = negate; +}; +tree.Condition.prototype.eval = function (env) { + var a = this.lvalue.eval(env), + b = this.rvalue.eval(env); + + var i = this.index, result; + + var result = (function (op) { + switch (op) { + case 'and': + return a && b; + case 'or': + return a || b; + default: + if (a.compare) { + result = a.compare(b); + } else if (b.compare) { + result = b.compare(a); + } else { + throw { type: "Type", + message: "Unable to perform comparison", + index: i }; + } + switch (result) { + case -1: return op === '<' || op === '=<'; + case 0: return op === '=' || op === '>=' || op === '=<'; + case 1: return op === '>' || op === '>='; + } + } + })(this.op); + return this.negate ? !result : result; +}; + +})(require('../tree')); +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + }, + + // TODO: Perform unit conversion before comparing + compare: function (other) { + if (other instanceof tree.Dimension) { + if (other.value > this.value) { + return -1; + } else if (other.value < this.value) { + return 1; + } else { + return 0; + } + } else { + return -1; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Directive = function (name, value, features) { + this.name = name; + + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + this.ruleset.allowImports = true; + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + if (this.ruleset) { + this.ruleset.root = true; + return this.name + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('../tree')); +(function (tree) { + +tree.Element = function (combinator, value, index) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + + if (typeof(value) === 'string') { + this.value = value.trim(); + } else if (value) { + this.value = value; + } else { + this.value = ""; + } + this.index = index; +}; +tree.Element.prototype.eval = function (env) { + return new(tree.Element)(this.combinator, + this.value.eval ? this.value.eval(env) : this.value, + this.index); +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value); +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else if (value === '& ') { + this.value = '& '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + '& ' : ' ', + ':' : ' :', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('../tree')); +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return this; + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS ? e.toCSS(env) : ''; + }).join(' '); + } +}; + +})(require('../tree')); +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports, features, index) { + var that = this; + + this.index = index; + this._path = path; + this.features = features && new(tree.Value)(features); + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css(\?.*)?$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (e, root) { + if (e) { e.index = index } + that.root = root || new(tree.Ruleset)([], []); + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function (env) { + var features = this.features ? ' ' + this.features.toCSS(env) : ''; + + if (this.css) { + return "@import " + this._path.toCSS() + features + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset, features = this.features && this.features.eval(env); + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + eval: function (env) { + var result, + that = this, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); + }); + + try { + expression = new(Function)('return (' + expression + ')'); + } catch (e) { + throw { message: "JavaScript evaluation error: `" + expression + "`" , + index: this.index }; + } + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + result = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + if (typeof(result) === 'string') { + return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); + } else if (Array.isArray(result)) { + return new(tree.Anonymous)(result.join(', ')); + } else { + return new(tree.Anonymous)(result); + } + } +}; + +})(require('../tree')); + +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value }, + compare: function (other) { + if (other instanceof tree.Keyword) { + return other.value === this.value ? 0 : 1; + } else { + return -1; + } + } +}; + +tree.True = new(tree.Keyword)('true'); +tree.False = new(tree.Keyword)('false'); + +})(require('../tree')); +(function (tree) { + +tree.Media = function (value, features) { + var el = new(tree.Element)('&', null, 0), + selectors = [new(tree.Selector)([el])]; + + this.features = new(tree.Value)(features); + this.ruleset = new(tree.Ruleset)(selectors, value); + this.ruleset.allowImports = true; +}; +tree.Media.prototype = { + toCSS: function (ctx, env) { + var features = this.features.toCSS(env); + + this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); + return '@media ' + features + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + }, + eval: function (env) { + if (!env.mediaBlocks) { + env.mediaBlocks = []; + env.mediaPath = []; + } + + var blockIndex = env.mediaBlocks.length; + env.mediaPath.push(this); + env.mediaBlocks.push(this); + + var media = new(tree.Media)([], []); + media.features = this.features.eval(env); + + env.frames.unshift(this.ruleset); + media.ruleset = this.ruleset.eval(env); + env.frames.shift(); + + env.mediaBlocks[blockIndex] = media; + env.mediaPath.pop(); + + return env.mediaPath.length === 0 ? media.evalTop(env) : + media.evalNested(env) + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, + + evalTop: function (env) { + var result = this; + + // Render all dependent Media blocks. + if (env.mediaBlocks.length > 1) { + var el = new(tree.Element)('&', null, 0); + var selectors = [new(tree.Selector)([el])]; + result = new(tree.Ruleset)(selectors, env.mediaBlocks); + result.multiMedia = true; + } + + delete env.mediaBlocks; + delete env.mediaPath; + + return result; + }, + evalNested: function (env) { + var i, value, + path = env.mediaPath.concat([this]); + + // Extract the media-query conditions separated with `,` (OR). + for (i = 0; i < path.length; i++) { + value = path[i].features instanceof tree.Value ? + path[i].features.value : path[i].features; + path[i] = Array.isArray(value) ? value : [value]; + } + + // Trace all permutations to generate the resulting media-query. + // + // (a, b and c) with nested (d, e) -> + // a and d + // a and e + // b and c and d + // b and c and e + this.features = new(tree.Value)(this.permute(path).map(function (path) { + path = path.map(function (fragment) { + return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); + }); + + for(i = path.length - 1; i > 0; i--) { + path.splice(i, 0, new(tree.Anonymous)("and")); + } + + return new(tree.Expression)(path); + })); + + // Fake a tree-node that doesn't output anything. + return new(tree.Ruleset)([], []); + }, + permute: function (arr) { + if (arr.length === 0) { + return []; + } else if (arr.length === 1) { + return arr[0]; + } else { + var result = []; + var rest = this.permute(arr.slice(1)); + for (var i = 0; i < rest.length; i++) { + for (var j = 0; j < arr[0].length; j++) { + result.push([arr[0][j]].concat(rest[i])); + } + } + return result; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index, filename, important) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; + this.filename = filename; + this.important = important; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, args, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(args, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments, this.important).rules); + match = true; + } catch (e) { + throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; + } + } + } + if (match) { + return rules; + } else { + throw { type: 'Runtime', + message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index, filename: this.filename }; + } + } + } + throw { type: 'Name', + message: this.selector.toCSS().trim() + " is undefined", + index: this.index, filename: this.filename }; + } +}; + +tree.mixin.Definition = function (name, params, rules, condition, variadic) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.condition = condition; + this.variadic = variadic; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + evalParams: function (env, args) { + var frame = new(tree.Ruleset)(null, []), varargs; + + for (var i = 0, val, name; i < this.params.length; i++) { + if (name = this.params[i].name) { + if (this.params[i].variadic && args) { + varargs = []; + for (var j = i; j < args.length; j++) { + varargs.push(args[j].eval(env)); + } + frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); + } else if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(name, val.eval(env))); + } else { + throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + return frame; + }, + eval: function (env, args, important) { + var frame = this.evalParams(env, args), context, _arguments = [], rules, start; + + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); + + rules = important ? + this.rules.map(function (r) { + return new(tree.Rule)(r.name, r.value, '!important', r.index); + }) : this.rules.slice(0); + + return new(tree.Ruleset)(null, rules).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len, frame; + + if (! this.variadic) { + if (argsLength < this.required) { return false } + if (argsLength > this.params.length) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + } + + if (this.condition && !this.condition.eval({ + frames: [this.evalParams(env, args)].concat(env.frames) + })) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('../tree')); + +(function (tree) { + +tree.Paren = function (node) { + this.value = node; +}; +tree.Paren.prototype = { + toCSS: function (env) { + return '(' + this.value.toCSS(env) + ')'; + }, + eval: function (env) { + return new(tree.Paren)(this.value.eval(env)); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + var that = this; + var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, that.index, true).eval(env).value; + }).replace(/@\{([\w-]+)\}/g, function (_, name) { + var v = new(tree.Variable)('@' + name, that.index).eval(env); + return ('value' in v) ? v.value : v.toCSS(); + }); + return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Rule = function (name, value, important, index, inline) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + this.inline = inline || false; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + (this.inline ? "" : ";"); + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, + this.value.eval(context), + this.important, + this.index, this.inline); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Ruleset = function (selectors, rules, strictImports) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; + this.strictImports = strictImports; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); + var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); + + ruleset.root = this.root; + ruleset.allowImports = this.allowImports; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > rule.selectors[j].elements.length) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + this.joinSelectors(paths, context, this.selectors); + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive) || (rule instanceof tree.Media)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join( env.compress ? ',' : ',\n'); + + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + }, + + joinSelectors: function (paths, context, selectors) { + for (var s = 0; s < selectors.length; s++) { + this.joinSelector(paths, context, selectors[s]); + } + }, + + joinSelector: function (paths, context, selector) { + var before = [], after = [], beforeElements = [], + afterElements = [], hasParentSelector = false, el; + + for (var i = 0; i < selector.elements.length; i++) { + el = selector.elements[i]; + if (el.combinator.value.charAt(0) === '&') { + hasParentSelector = true; + } + if (hasParentSelector) afterElements.push(el); + else beforeElements.push(el); + } + + if (! hasParentSelector) { + afterElements = beforeElements; + beforeElements = []; + } + + if (beforeElements.length > 0) { + before.push(new(tree.Selector)(beforeElements)); + } + + if (afterElements.length > 0) { + after.push(new(tree.Selector)(afterElements)); + } + + for (var c = 0; c < context.length; c++) { + paths.push(before.concat(context[c]).concat(after)); + } + } +}; +})(require('../tree')); +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + var len = this.elements.length, + olen = other.elements.length, + max = Math.min(len, olen); + + if (len < olen) { + return false; + } else { + for (var i = 0; i < max; i++) { + if (this.elements[i].value !== other.elements[i].value) { + return false; + } + } + } + return true; +}; +tree.Selector.prototype.eval = function (env) { + return new(tree.Selector)(this.elements.map(function (e) { + return e.eval(env); + })); +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('../tree')); +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { type: 'Name', + message: "variable " + name + " is undefined", + filename: this.file, + index: this.index }; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +tree.jsify = function (obj) { + if (Array.isArray(obj.value) && (obj.value.length > 1)) { + return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; + } else { + return obj.toCSS(false); + } +}; + +})(require('./tree')); +// +// browser.js - client-side engine +// + +var isFileProtocol = (location.protocol === 'file:' || + location.protocol === 'chrome:' || + location.protocol === 'chrome-extension:' || + location.protocol === 'resource:'); + +less.env = less.env || (location.hostname == '127.0.0.1' || + location.hostname == '0.0.0.0' || + location.hostname == 'localhost' || + location.port.length > 0 || + isFileProtocol ? 'development' + : 'production'); + +// Load styles asynchronously (default: false) +// +// This is set to `false` by default, so that the body +// doesn't start loading before the stylesheets are parsed. +// Setting this to `true` can result in flickering. +// +less.async = false; + +// Interval between watch polls +less.poll = less.poll || (isFileProtocol ? 1000 : 1500); + +// +// Watch mode +// +less.watch = function () { return this.watchMode = true }; +less.unwatch = function () { return this.watchMode = false }; + +if (less.env === 'development') { + less.optimization = 0; + + if (/!watch/.test(location.hash)) { + less.watch(); + } + less.watchTimer = setInterval(function () { + if (less.watchMode) { + loadStyleSheets(function (e, root, _, sheet, env) { + if (root) { + createCSS(root.toCSS(), sheet, env.lastModified); + } + }); + } + }, less.poll); +} else { + less.optimization = 3; +} + +var cache; + +try { + cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; +} catch (_) { + cache = null; +} + +// +// Get all tags with the 'rel' attribute set to "stylesheet/less" +// +var links = document.getElementsByTagName('link'); +var typePattern = /^text\/(x-)?less$/; + +less.sheets = []; + +for (var i = 0; i < links.length; i++) { + if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && + (links[i].type.match(typePattern)))) { + less.sheets.push(links[i]); + } +} + + +less.refresh = function (reload) { + var startTime, endTime; + startTime = endTime = new(Date); + + loadStyleSheets(function (e, root, _, sheet, env) { + if (env.local) { + log("loading " + sheet.href + " from cache."); + } else { + log("parsed " + sheet.href + " successfully."); + createCSS(root.toCSS(), sheet, env.lastModified); + } + log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); + (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); + endTime = new(Date); + }, reload); + + loadStyles(); +}; +less.refreshStyles = loadStyles; + +less.refresh(less.env === 'development'); + +function loadStyles() { + var styles = document.getElementsByTagName('style'); + for (var i = 0; i < styles.length; i++) { + if (styles[i].type.match(typePattern)) { + new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { + var css = tree.toCSS(); + var style = styles[i]; + style.type = 'text/css'; + if (style.styleSheet) { + style.styleSheet.cssText = css; + } else { + style.innerHTML = css; + } + }); + } + } +} + +function loadStyleSheets(callback, reload) { + for (var i = 0; i < less.sheets.length; i++) { + loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); + } +} + +function loadStyleSheet(sheet, callback, reload, remaining) { + var url = window.location.href.replace(/[#?].*$/, ''); + var href = sheet.href.replace(/\?.*$/, ''); + var css = cache && cache.getItem(href); + var timestamp = cache && cache.getItem(href + ':timestamp'); + var styles = { css: css, timestamp: timestamp }; + + // Stylesheets in IE don't always return the full path + if (! /^(https?|file):/.test(href)) { + if (href.charAt(0) == "/") { + href = window.location.protocol + "//" + window.location.host + href; + } else { + href = url.slice(0, url.lastIndexOf('/') + 1) + href; + } + } + var filename = href.match(/([^\/]+)$/)[1]; + + xhr(sheet.href, sheet.type, function (data, lastModified) { + if (!reload && styles && lastModified && + (new(Date)(lastModified).valueOf() === + new(Date)(styles.timestamp).valueOf())) { + // Use local copy + createCSS(styles.css, sheet); + callback(null, null, data, sheet, { local: true, remaining: remaining }); + } else { + // Use remote copy (re-parse) + try { + new(less.Parser)({ + optimization: less.optimization, + paths: [href.replace(/[\w\.-]+$/, '')], + mime: sheet.type, + filename: filename + }).parse(data, function (e, root) { + if (e) { return error(e, href) } + try { + callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }); + removeNode(document.getElementById('less-error-message:' + extractId(href))); + } catch (e) { + error(e, href); + } + }); + } catch (e) { + error(e, href); + } + } + }, function (status, url) { + throw new(Error)("Couldn't load " + url + " (" + status + ")"); + }); +} + +function extractId(href) { + return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain + .replace(/^\//, '' ) // Remove root / + .replace(/\?.*$/, '' ) // Remove query + .replace(/\.[^\.\/]+$/, '' ) // Remove file extension + .replace(/[^\.\w-]+/g, '-') // Replace illegal characters + .replace(/\./g, ':'); // Replace dots with colons(for valid id) +} + +function createCSS(styles, sheet, lastModified) { + var css; + + // Strip the query-string + var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; + + // If there is no title set, use the filename, minus the extension + var id = 'less:' + (sheet.title || extractId(href)); + + // If the stylesheet doesn't exist, create a new node + if ((css = document.getElementById(id)) === null) { + css = document.createElement('style'); + css.type = 'text/css'; + css.media = sheet.media || 'screen'; + css.id = id; + document.getElementsByTagName('head')[0].appendChild(css); + } + + if (css.styleSheet) { // IE + try { + css.styleSheet.cssText = styles; + } catch (e) { + throw new(Error)("Couldn't reassign styleSheet.cssText."); + } + } else { + (function (node) { + if (css.childNodes.length > 0) { + if (css.firstChild.nodeValue !== node.nodeValue) { + css.replaceChild(node, css.firstChild); + } + } else { + css.appendChild(node); + } + })(document.createTextNode(styles)); + } + + // Don't update the local store if the file wasn't modified + if (lastModified && cache) { + log('saving ' + href + ' to cache.'); + cache.setItem(href, styles); + cache.setItem(href + ':timestamp', lastModified); + } +} + +function xhr(url, type, callback, errback) { + var xhr = getXMLHttpRequest(); + var async = isFileProtocol ? false : less.async; + + if (typeof(xhr.overrideMimeType) === 'function') { + xhr.overrideMimeType('text/css'); + } + xhr.open('GET', url, async); + xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); + xhr.send(null); + + if (isFileProtocol) { + if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { + callback(xhr.responseText); + } else { + errback(xhr.status, url); + } + } else if (async) { + xhr.onreadystatechange = function () { + if (xhr.readyState == 4) { + handleResponse(xhr, callback, errback); + } + }; + } else { + handleResponse(xhr, callback, errback); + } + + function handleResponse(xhr, callback, errback) { + if (xhr.status >= 200 && xhr.status < 300) { + callback(xhr.responseText, + xhr.getResponseHeader("Last-Modified")); + } else if (typeof(errback) === 'function') { + errback(xhr.status, url); + } + } +} + +function getXMLHttpRequest() { + if (window.XMLHttpRequest) { + return new(XMLHttpRequest); + } else { + try { + return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); + } catch (e) { + log("browser doesn't support AJAX."); + return null; + } + } +} + +function removeNode(node) { + return node && node.parentNode.removeChild(node); +} + +function log(str) { + if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } +} + +function error(e, href) { + var id = 'less-error-message:' + extractId(href); + var template = '
  • {content}
    • '; + var elem = document.createElement('div'), timer, content, error = []; + var filename = e.filename || href; + + elem.id = id; + elem.className = "less-error-message"; + + content = '

    ' + (e.message || 'There is an error in your .less file') + + '

    ' + '

    in ' + filename + " "; + + var errorline = function (e, i, classname) { + if (e.extract[i]) { + error.push(template.replace(/\{line\}/, parseInt(e.line) + (i - 1)) + .replace(/\{class\}/, classname) + .replace(/\{content\}/, e.extract[i])); + } + }; + + if (e.stack) { + content += '
    ' + e.stack.split('\n').slice(1).join('
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    ' + + '
      ' + error.join('') + '
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+ for (var i = 0; i < len; i++) { + if (i in this) { + block.call(thisObject, this[i], i, this); + } + } + }; +} +if (!Array.prototype.map) { + Array.prototype.map = function(fun /*, thisp*/) { + var len = this.length >>> 0; + var res = new Array(len); + var thisp = arguments[1]; + + for (var i = 0; i < len; i++) { + if (i in this) { + res[i] = fun.call(thisp, this[i], i, this); + } + } + return res; + }; +} +if (!Array.prototype.filter) { + Array.prototype.filter = function (block /*, thisp */) { + var values = []; + var thisp = arguments[1]; + for (var i = 0; i < this.length; i++) { + if (block.call(thisp, this[i])) { + values.push(this[i]); + } + } + return values; + }; +} +if (!Array.prototype.reduce) { + Array.prototype.reduce = function(fun /*, initial*/) { + var len = this.length >>> 0; + var i = 0; + + // no value to return if no initial value and an empty array + if (len === 0 && arguments.length === 1) throw new TypeError(); + + if (arguments.length >= 2) { + var rv = arguments[1]; + } else { + do { + if (i in this) { + rv = this[i++]; + break; + } + // if array contains no values, no initial value to return + if (++i >= len) throw new TypeError(); + } while (true); + } + for (; i < len; i++) { + if (i in this) { + rv = fun.call(null, rv, this[i], i, this); + } + } + return rv; + }; +} +if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (value /*, fromIndex */ ) { + var length = this.length; + var i = arguments[1] || 0; + + if (!length) return -1; + if (i >= length) return -1; + if (i < 0) i += length; + + for (; i < length; i++) { + if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } + if (value === this[i]) return i; + } + return -1; + }; +} + +// +// Object +// +if (!Object.keys) { + Object.keys = function (object) { + var keys = []; + for (var name in object) { + if (Object.prototype.hasOwnProperty.call(object, name)) { + keys.push(name); + } + } + return keys; + }; +} + +// +// String +// +if (!String.prototype.trim) { + String.prototype.trim = function () { + return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); + }; +} +var less, tree; + +if (typeof(window) === 'undefined') { + if (typeof(exports) === 'undefined') { + // Rhino + less = {}; + tree = less.tree = {}; + } else { + // Node.js + less = exports, + tree = require('less/tree'); + } +} else { + // Browser + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + mime: env && env.mime, // MIME type of .less files + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (root) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + + callback(root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + chunks = []; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + level = 0, + match, + chunk = chunks[0], + inParam, + inString; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = i; + + if (!inString && !inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + if (c === '{' && !inString && !inParam) { level ++; + chunk.push(c); + } else if (c === '}' && !inString && !inParam) { level --; + chunk.push(c); + chunks[++j] = chunk = []; + } else if (c === '(' && !inString && !inParam) { + chunk.push(c); + inParam = true; + } else if (c === ')' && !inString && inParam) { + chunk.push(c); + inParam = false; + } else { + if (c === '"' || c === "'" || c === '`') { + if (! inString) { + inString = c; + } else { + inString = inString === c ? false : inString; + } + } + chunk.push(c); + } + } + if (level > 0) { + throw { + type: 'Syntax', + message: "Missing closing `}`", + filename: env.filename + }; + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = []; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + lines = input.split('\n'); + line = getLine(e.index); + + for (var n = e.index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + throw { + type: e.type, + message: e.message, + filename: env.filename, + index: e.index, + line: typeof(line) === 'number' ? line + 1 : null, + callLine: e.call && (getLine(e.call) + 1), + callExtract: lines[getLine(e.call)], + stack: e.stack, + column: column, + extract: [ + lines[line - 1], + lines[line], + lines[line + 1] + ] + }; + } + if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + + function getLine(index) { + return index ? (input.slice(0, index).match(/\n/g) || "").length : null; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + name: "ParseError", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + if (k = $(/^[A-Za-z-]+/)) { return new(tree.Keyword)(k) } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args, index = i; + + if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args, index) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + if (! $(')')) throw new(Error)("missing closing ) for url()"); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i); + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args, index); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value; + + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + while (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + if (value = $(this.expression)) { + params.push({ name: param.name, value: value }); + } else { + throw new(Error)("Expected value"); + } + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + if (! $(',')) { break } + } + if (! $(')')) throw new(Error)("Expected )"); + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^\(opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + if (! $(')')) throw new(Error)("missing closing ) for alpha()"); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c; + + c = $(this.combinator); + e = $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || $('*') || $(this.attribute) || $(/^\([^)@]+\)/); + + if (e) { return new(tree.Element)(c, e) } + + if (c.value && c.value[0] === '&') { + return new(tree.Element)(c, null); + } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === '&') { + match = '&'; + i++; + if(input.charAt(i) === ' ') { + match = '& '; + } + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(match); + } else if (c === ':' && input.charAt(i + 1) === ':') { + i += 2; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)('::'); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + if (match = /^([.#: \w-]+)[\s\n]*\{/.exec(chunks[j])) { + i += match[0].length - 1; + selectors = [new(tree.Selector)([new(tree.Element)(null, match[1])])]; + } else { + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url)) && + $(';')) { + return new(tree.Import)(path, imports); + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import'])) { + return value; + } else if (name = $(/^@media|@page|@-[-a-z]+/)) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (typeof(window) !== 'undefined' /* browser */ || typeof(exports) === 'undefined' /* rhino */) { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (path.charAt(0) !== '/' && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); + }; +} + +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math.round(number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math.round(n); + } else { + throw { + error: "RuntimeError", + message: "math functions take numbers as parameters" + }; + } + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('less/tree')); +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args, index) { + this.name = name; + this.args = args; + this.index = index; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + try { + return tree.functions[this.name].apply(tree.functions, args); + } catch (e) { + throw { message: "error evaluating function `" + this.name + "`", + index: this.index }; + } + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('less/tree')); +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else if (rgb.length == 8) { + this.alpha = parseInt(rgb.substring(0,2), 16) / 255.0; + this.rgb = rgb.substr(2).match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + } +}; + + +})(require('less/tree')); +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Directive = function (name, value) { + this.name = name; + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + if (this.ruleset) { + this.ruleset.root = true; + return this.name + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Element = function (combinator, value) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + this.value = value ? value.trim() : ""; +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + this.value; +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else if (value === '& ') { + this.value = '& '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + '& ' : ' ', + ':' : ' :', + '::': '::', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('less/tree')); +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return this; + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(' '); + } +}; + +})(require('less/tree')); +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports) { + var that = this; + + this._path = path; + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (root) { + if (! root) { + throw new(Error)("Error parsing " + that.path); + } + that.root = root; + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function () { + if (this.css) { + return "@import " + this._path.toCSS() + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset; + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return ruleset.rules; + } + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + eval: function (env) { + var result, + that = this, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); + }); + + try { + expression = new(Function)('return (' + expression + ')'); + } catch (e) { + throw { message: "JavaScript evaluation error: `" + expression + "`" , + index: this.index }; + } + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + result = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + if (typeof(result) === 'string') { + return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); + } else if (Array.isArray(result)) { + return new(tree.Anonymous)(result.join(', ')); + } else { + return new(tree.Anonymous)(result); + } + } +}; + +})(require('less/tree')); + +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value } +}; + +})(require('less/tree')); +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, args, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(args, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments).rules); + match = true; + } catch (e) { + throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; + } + } + } + if (match) { + return rules; + } else { + throw { message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index }; + } + } + } + throw { message: this.selector.toCSS().trim() + " is undefined", + index: this.index }; + } +}; + +tree.mixin.Definition = function (name, params, rules) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + eval: function (env, args) { + var frame = new(tree.Ruleset)(null, []), context, _arguments = []; + + for (var i = 0, val; i < this.params.length; i++) { + if (this.params[i].name) { + if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); + } else { + throw { message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); + + return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len; + + if (argsLength < this.required) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + var that = this; + var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, that.index, true).eval(env).value; + }).replace(/@\{([\w-]+)\}/g, function (_, name) { + var v = new(tree.Variable)('@' + name, that.index).eval(env); + return v.value || v.toCSS(); + }); + return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Rule = function (name, value, important, index) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + ";"; + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Ruleset = function (selectors, rules) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); + + ruleset.root = this.root; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > 1) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + this.joinSelectors( paths, context, this.selectors ); + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + }, + + joinSelectors: function( paths, context, selectors ) { + for (var s = 0; s < selectors.length; s++) { + this.joinSelector(paths, context, selectors[s]); + } + }, + + joinSelector: function( paths, context, selector ) { + var before = [], after = [], beforeElements = [], afterElements = [], hasParentSelector = false, el; + + for (var i = 0; i < selector.elements.length; i++) { + el = selector.elements[i]; + if (el.combinator.value[0] === '&') { + hasParentSelector = true; + } + if(!hasParentSelector) { + beforeElements.push(el); + } else { + afterElements.push(el); + } + } + + if(!hasParentSelector) { + afterElements = beforeElements; + beforeElements = []; + } + + if(beforeElements.length > 0) { + before.push(new (tree.Selector)(beforeElements)); + } + if(afterElements.length > 0) { + after.push(new (tree.Selector)(afterElements)); + } + + for (var c = 0; c < context.length; c++) { + paths.push(before.concat(context[c]).concat(after)); + } + } +}; +})(require('less/tree')); +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + if (this.elements[0].value === other.elements[0].value) { + return true; + } else { + return false; + } +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('less/tree')); +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('less/tree')); +(function (tree) { + +tree.Variable = function (name, index) { this.name = name, this.index = index }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { message: "variable " + name + " is undefined", + index: this.index }; + } + } +}; + +})(require('less/tree')); +require('less/tree').find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +require('less/tree').jsify = function (obj) { + if (Array.isArray(obj.value) && (obj.value.length > 1)) { + return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; + } else { + return obj.toCSS(false); + } +}; +var name; + +function loadStyleSheet(sheet, callback, reload, remaining) { + var sheetName = name.slice(0, name.lastIndexOf('/') + 1) + sheet.href; + var input = readFile(sheetName); + var parser = new less.Parser(); + parser.parse(input, function (e, root) { + if (e) { + print("Error: " + e); + quit(1); + } + callback(root, sheet, { local: false, lastModified: 0, remaining: remaining }); + }); + + // callback({}, sheet, { local: true, remaining: remaining }); +} + +function writeFile(filename, content) { + var fstream = new java.io.FileWriter(filename); + var out = new java.io.BufferedWriter(fstream); + out.write(content); + out.close(); +} + +// Command line integration via Rhino +(function (args) { + name = args[0]; + var output = args[1]; + + if (!name) { + print('No files present in the fileset; Check your pattern match in build.xml'); + quit(1); + } + path = name.split("/");path.pop();path=path.join("/") + + var input = readFile(name); + + if (!input) { + print('lesscss: couldn\'t open file ' + name); + quit(1); + } + + var result; + var parser = new less.Parser(); + parser.parse(input, function (e, root) { + if (e) { + quit(1); + } else { + result = root.toCSS(); + if (output) { + writeFile(output, result); + print("Written to " + output); + } else { + print(result); + } + quit(0); + } + }); + print("done"); +}(arguments)); diff --git a/node_modules/less-brunch/node_modules/less/dist/less-rhino-1.1.5.js b/node_modules/less-brunch/node_modules/less/dist/less-rhino-1.1.5.js new file mode 100644 index 0000000..e755f63 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/dist/less-rhino-1.1.5.js @@ -0,0 +1,2481 @@ +// +// Stub out `require` in rhino +// +function require(arg) { + return less[arg.split('/')[1]]; +}; + + +// ecma-5.js +// +// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License +// -- tlrobinson Tom Robinson +// dantman Daniel Friesen + +// +// Array +// +if (!Array.isArray) { + Array.isArray = function(obj) { + return Object.prototype.toString.call(obj) === "[object Array]" || + (obj instanceof Array); + }; +} +if (!Array.prototype.forEach) { + Array.prototype.forEach = function(block, thisObject) { + var len = this.length >>> 0; + for (var i = 0; i < len; i++) { + if (i in this) { + block.call(thisObject, this[i], i, this); + } + } + }; +} +if (!Array.prototype.map) { + Array.prototype.map = function(fun /*, thisp*/) { + var len = this.length >>> 0; + var res = new Array(len); + var thisp = arguments[1]; + + for (var i = 0; i < len; i++) { + if (i in this) { + res[i] = fun.call(thisp, this[i], i, this); + } + } + return res; + }; +} +if (!Array.prototype.filter) { + Array.prototype.filter = function (block /*, thisp */) { + var values = []; + var thisp = arguments[1]; + for (var i = 0; i < this.length; i++) { + if (block.call(thisp, this[i])) { + values.push(this[i]); + } + } + return values; + }; +} +if (!Array.prototype.reduce) { + Array.prototype.reduce = function(fun /*, initial*/) { + var len = this.length >>> 0; + var i = 0; + + // no value to return if no initial value and an empty array + if (len === 0 && arguments.length === 1) throw new TypeError(); + + if (arguments.length >= 2) { + var rv = arguments[1]; + } else { + do { + if (i in this) { + rv = this[i++]; + break; + } + // if array contains no values, no initial value to return + if (++i >= len) throw new TypeError(); + } while (true); + } + for (; i < len; i++) { + if (i in this) { + rv = fun.call(null, rv, this[i], i, this); + } + } + return rv; + }; +} +if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (value /*, fromIndex */ ) { + var length = this.length; + var i = arguments[1] || 0; + + if (!length) return -1; + if (i >= length) return -1; + if (i < 0) i += length; + + for (; i < length; i++) { + if (!Object.prototype.hasOwnProperty.call(this, i)) { continue } + if (value === this[i]) return i; + } + return -1; + }; +} + +// +// Object +// +if (!Object.keys) { + Object.keys = function (object) { + var keys = []; + for (var name in object) { + if (Object.prototype.hasOwnProperty.call(object, name)) { + keys.push(name); + } + } + return keys; + }; +} + +// +// String +// +if (!String.prototype.trim) { + String.prototype.trim = function () { + return String(this).replace(/^\s\s*/, '').replace(/\s\s*$/, ''); + }; +} +var less, tree; + +if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { + // Rhino + // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 + less = {}; + tree = less.tree = {}; + less.mode = 'rhino'; +} else if (typeof(window) === 'undefined') { + // Node.js + less = exports, + tree = require('./tree'); + less.mode = 'rhino'; +} else { + // Browser + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; + less.mode = 'browser'; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + mime: env && env.mime, // MIME type of .less files + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (root) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + + callback(root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + chunks = []; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + level = 0, + match, + chunk = chunks[0], + inParam, + inString; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = i; + + if (!inString && !inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + if (c === '{' && !inString && !inParam) { level ++; + chunk.push(c); + } else if (c === '}' && !inString && !inParam) { level --; + chunk.push(c); + chunks[++j] = chunk = []; + } else if (c === '(' && !inString && !inParam) { + chunk.push(c); + inParam = true; + } else if (c === ')' && !inString && inParam) { + chunk.push(c); + inParam = false; + } else { + if (c === '"' || c === "'" || c === '`') { + if (! inString) { + inString = c; + } else { + inString = inString === c ? false : inString; + } + } + chunk.push(c); + } + } + if (level > 0) { + throw { + type: 'Syntax', + message: "Missing closing `}`", + filename: env.filename + }; + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = []; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + lines = input.split('\n'); + line = getLine(e.index); + + for (var n = e.index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + throw { + type: e.type, + message: e.message, + filename: env.filename, + index: e.index, + line: typeof(line) === 'number' ? line + 1 : null, + callLine: e.call && (getLine(e.call) + 1), + callExtract: lines[getLine(e.call)], + stack: e.stack, + column: column, + extract: [ + lines[line - 1], + lines[line], + lines[line + 1] + ] + }; + } + if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + + function getLine(index) { + return index ? (input.slice(0, index).match(/\n/g) || "").length : null; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + name: "ParseError", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { return new(tree.Keyword)(k) } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args, index = i; + + if (! (name = /^([\w-]+|%)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args, index) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + if (! $(')')) throw new(Error)("missing closing ) for url()"); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i); + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e, i)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args, index); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value; + + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + while (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + if (value = $(this.expression)) { + params.push({ name: param.name, value: value }); + } else { + throw new(Error)("Expected value"); + } + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + if (! $(',')) { break } + } + if (! $(')')) throw new(Error)("Expected )"); + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^\(opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + if (! $(')')) throw new(Error)("missing closing ) for alpha()"); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c; + + c = $(this.combinator); + e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || + $('*') || $(this.attribute) || $(/^\([^)@]+\)/); + + if (e) { return new(tree.Element)(c, e, i) } + + if (c.value && c.value.charAt(0) === '&') { + return new(tree.Element)(c, null, i); + } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === '&') { + match = '&'; + i++; + if(input.charAt(i) === ' ') { + match = '& '; + } + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(match); + } else if (c === ':' && input.charAt(i + 1) === ':') { + i += 2; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)('::'); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url)) && + $(';')) { + return new(tree.Import)(path, imports); + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import'])) { + return value; + } else if (name = $(/^@media|@page/) || $(/^@(?:-webkit-|-moz-)?keyframes/)) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while ((op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (less.mode === 'browser' || less.mode === 'rhino') { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (path.charAt(0) !== '/' && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, callback, true); + }; +} + +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fade: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a = amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math.round(number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math.round(n); + } else { + throw { + error: "RuntimeError", + message: "math functions take numbers as parameters" + }; + } + }, + argb: function (color) { + return new(tree.Anonymous)(color.toARGB()); + + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('./tree')); +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args, index) { + this.name = name; + this.args = args; + this.index = index; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + try { + return tree.functions[this.name].apply(tree.functions, args); + } catch (e) { + throw { message: "error evaluating function `" + this.name + "`", + index: this.index }; + } + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('../tree')); +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + }, + toARGB: function () { + var argb = [Math.round(this.alpha * 255)].concat(this.rgb); + return '#' + argb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } +}; + + +})(require('../tree')); +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Directive = function (name, value) { + this.name = name; + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + if (this.ruleset) { + this.ruleset.root = true; + return this.name + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('../tree')); +(function (tree) { + +tree.Element = function (combinator, value, index) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + this.value = value ? value.trim() : ""; + this.index = index; +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + this.value; +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else if (value === '& ') { + this.value = '& '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + '& ' : ' ', + ':' : ' :', + '::': '::', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('../tree')); +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return this; + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(' '); + } +}; + +})(require('../tree')); +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports) { + var that = this; + + this._path = path; + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css(\?.*)?$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (root) { + if (! root) { + throw new(Error)("Error parsing " + that.path); + } + that.root = root; + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function () { + if (this.css) { + return "@import " + this._path.toCSS() + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset; + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)(null, this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return ruleset.rules; + } + } +}; + +})(require('../tree')); +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + eval: function (env) { + var result, + that = this, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); + }); + + try { + expression = new(Function)('return (' + expression + ')'); + } catch (e) { + throw { message: "JavaScript evaluation error: `" + expression + "`" , + index: this.index }; + } + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + result = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + if (typeof(result) === 'string') { + return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); + } else if (Array.isArray(result)) { + return new(tree.Anonymous)(result.join(', ')); + } else { + return new(tree.Anonymous)(result); + } + } +}; + +})(require('../tree')); + +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value } +}; + +})(require('../tree')); +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, args, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(args, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments).rules); + match = true; + } catch (e) { + throw { message: e.message, index: e.index, stack: e.stack, call: this.index }; + } + } + } + if (match) { + return rules; + } else { + throw { message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index }; + } + } + } + throw { message: this.selector.toCSS().trim() + " is undefined", + index: this.index }; + } +}; + +tree.mixin.Definition = function (name, params, rules) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + eval: function (env, args) { + var frame = new(tree.Ruleset)(null, []), context, _arguments = []; + + for (var i = 0, val; i < this.params.length; i++) { + if (this.params[i].name) { + if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(this.params[i].name, val.eval(env))); + } else { + throw { message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); + + return new(tree.Ruleset)(null, this.rules.slice(0)).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len; + + if (argsLength < this.required) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + var that = this; + var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, that.index, true).eval(env).value; + }).replace(/@\{([\w-]+)\}/g, function (_, name) { + var v = new(tree.Variable)('@' + name, that.index).eval(env); + return v.value || v.toCSS(); + }); + return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Rule = function (name, value, important, index) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + ";"; + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, this.value.eval(context), this.important, this.index); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('../tree')); +(function (tree) { + +tree.Ruleset = function (selectors, rules) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var ruleset = new(tree.Ruleset)(this.selectors, this.rules.slice(0)); + + ruleset.root = this.root; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > rule.selectors[j].elements.length) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + this.joinSelectors( paths, context, this.selectors ); + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join(env.compress ? ',' : (paths.length > 3 ? ',\n' : ', ')); + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + }, + + joinSelectors: function (paths, context, selectors) { + for (var s = 0; s < selectors.length; s++) { + this.joinSelector(paths, context, selectors[s]); + } + }, + + joinSelector: function (paths, context, selector) { + var before = [], after = [], beforeElements = [], + afterElements = [], hasParentSelector = false, el; + + for (var i = 0; i < selector.elements.length; i++) { + el = selector.elements[i]; + if (el.combinator.value.charAt(0) === '&') { + hasParentSelector = true; + } + if (hasParentSelector) afterElements.push(el); + else beforeElements.push(el); + } + + if (! hasParentSelector) { + afterElements = beforeElements; + beforeElements = []; + } + + if (beforeElements.length > 0) { + before.push(new(tree.Selector)(beforeElements)); + } + + if (afterElements.length > 0) { + after.push(new(tree.Selector)(afterElements)); + } + + for (var c = 0; c < context.length; c++) { + paths.push(before.concat(context[c]).concat(after)); + } + } +}; +})(require('../tree')); +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + var len = this.elements.length, + olen = other.elements.length, + max = Math.min(len, olen); + + if (len < olen) { + return false; + } else { + for (var i = 0; i < max; i++) { + if (this.elements[i].value !== other.elements[i].value) { + return false; + } + } + } + return true; +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('../tree')); +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (!/^(?:https?:\/\/|file:\/\/|data:)?/.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('../tree')); +(function (tree) { + +tree.Variable = function (name, index) { this.name = name, this.index = index }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { message: "variable " + name + " is undefined", + index: this.index }; + } + } +}; + +})(require('../tree')); +require('./tree').find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +require('./tree').jsify = function (obj) { + if (Array.isArray(obj.value) && (obj.value.length > 1)) { + return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; + } else { + return obj.toCSS(false); + } +}; +var name; + +function loadStyleSheet(sheet, callback, reload, remaining) { + var sheetName = name.slice(0, name.lastIndexOf('/') + 1) + sheet.href; + var input = readFile(sheetName); + var parser = new less.Parser(); + parser.parse(input, function (e, root) { + if (e) { + print("Error: " + e); + quit(1); + } + callback(root, sheet, { local: false, lastModified: 0, remaining: remaining }); + }); + + // callback({}, sheet, { local: true, remaining: remaining }); +} + +function writeFile(filename, content) { + var fstream = new java.io.FileWriter(filename); + var out = new java.io.BufferedWriter(fstream); + out.write(content); + out.close(); +} + +// Command line integration via Rhino +(function (args) { + name = args[0]; + var output = args[1]; + + if (!name) { + print('No files present in the fileset; Check your pattern match in build.xml'); + quit(1); + } + path = name.split("/");path.pop();path=path.join("/") + + var input = readFile(name); + + if (!input) { + print('lesscss: couldn\'t open file ' + name); + quit(1); + } + + var result; + var parser = new less.Parser(); + parser.parse(input, function (e, root) { + if (e) { + quit(1); + } else { + result = root.toCSS(); + if (output) { + writeFile(output, result); + print("Written to " + output); + } else { + print(result); + } + quit(0); + } + }); + print("done"); +}(arguments)); diff --git a/node_modules/less-brunch/node_modules/less/index.html b/node_modules/less-brunch/node_modules/less/index.html new file mode 100644 index 0000000..a62c6b6 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/index.html @@ -0,0 +1,10 @@ + + + + + + + + HELLO + + diff --git a/node_modules/less-brunch/node_modules/less/lib/less/browser.js b/node_modules/less-brunch/node_modules/less/lib/less/browser.js new file mode 100644 index 0000000..cab913b --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/browser.js @@ -0,0 +1,380 @@ +// +// browser.js - client-side engine +// + +var isFileProtocol = (location.protocol === 'file:' || + location.protocol === 'chrome:' || + location.protocol === 'chrome-extension:' || + location.protocol === 'resource:'); + +less.env = less.env || (location.hostname == '127.0.0.1' || + location.hostname == '0.0.0.0' || + location.hostname == 'localhost' || + location.port.length > 0 || + isFileProtocol ? 'development' + : 'production'); + +// Load styles asynchronously (default: false) +// +// This is set to `false` by default, so that the body +// doesn't start loading before the stylesheets are parsed. +// Setting this to `true` can result in flickering. +// +less.async = false; + +// Interval between watch polls +less.poll = less.poll || (isFileProtocol ? 1000 : 1500); + +// +// Watch mode +// +less.watch = function () { return this.watchMode = true }; +less.unwatch = function () { return this.watchMode = false }; + +if (less.env === 'development') { + less.optimization = 0; + + if (/!watch/.test(location.hash)) { + less.watch(); + } + less.watchTimer = setInterval(function () { + if (less.watchMode) { + loadStyleSheets(function (e, root, _, sheet, env) { + if (root) { + createCSS(root.toCSS(), sheet, env.lastModified); + } + }); + } + }, less.poll); +} else { + less.optimization = 3; +} + +var cache; + +try { + cache = (typeof(window.localStorage) === 'undefined') ? null : window.localStorage; +} catch (_) { + cache = null; +} + +// +// Get all tags with the 'rel' attribute set to "stylesheet/less" +// +var links = document.getElementsByTagName('link'); +var typePattern = /^text\/(x-)?less$/; + +less.sheets = []; + +for (var i = 0; i < links.length; i++) { + if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) && + (links[i].type.match(typePattern)))) { + less.sheets.push(links[i]); + } +} + + +less.refresh = function (reload) { + var startTime, endTime; + startTime = endTime = new(Date); + + loadStyleSheets(function (e, root, _, sheet, env) { + if (env.local) { + log("loading " + sheet.href + " from cache."); + } else { + log("parsed " + sheet.href + " successfully."); + createCSS(root.toCSS(), sheet, env.lastModified); + } + log("css for " + sheet.href + " generated in " + (new(Date) - endTime) + 'ms'); + (env.remaining === 0) && log("css generated in " + (new(Date) - startTime) + 'ms'); + endTime = new(Date); + }, reload); + + loadStyles(); +}; +less.refreshStyles = loadStyles; + +less.refresh(less.env === 'development'); + +function loadStyles() { + var styles = document.getElementsByTagName('style'); + for (var i = 0; i < styles.length; i++) { + if (styles[i].type.match(typePattern)) { + new(less.Parser)().parse(styles[i].innerHTML || '', function (e, tree) { + var css = tree.toCSS(); + var style = styles[i]; + style.type = 'text/css'; + if (style.styleSheet) { + style.styleSheet.cssText = css; + } else { + style.innerHTML = css; + } + }); + } + } +} + +function loadStyleSheets(callback, reload) { + for (var i = 0; i < less.sheets.length; i++) { + loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1)); + } +} + +function loadStyleSheet(sheet, callback, reload, remaining) { + var url = window.location.href.replace(/[#?].*$/, ''); + var href = sheet.href.replace(/\?.*$/, ''); + var css = cache && cache.getItem(href); + var timestamp = cache && cache.getItem(href + ':timestamp'); + var styles = { css: css, timestamp: timestamp }; + + // Stylesheets in IE don't always return the full path + if (! /^(https?|file):/.test(href)) { + if (href.charAt(0) == "/") { + href = window.location.protocol + "//" + window.location.host + href; + } else { + href = url.slice(0, url.lastIndexOf('/') + 1) + href; + } + } + var filename = href.match(/([^\/]+)$/)[1]; + + xhr(sheet.href, sheet.type, function (data, lastModified) { + if (!reload && styles && lastModified && + (new(Date)(lastModified).valueOf() === + new(Date)(styles.timestamp).valueOf())) { + // Use local copy + createCSS(styles.css, sheet); + callback(null, null, data, sheet, { local: true, remaining: remaining }); + } else { + // Use remote copy (re-parse) + try { + new(less.Parser)({ + optimization: less.optimization, + paths: [href.replace(/[\w\.-]+$/, '')], + mime: sheet.type, + filename: filename + }).parse(data, function (e, root) { + if (e) { return error(e, href) } + try { + callback(e, root, data, sheet, { local: false, lastModified: lastModified, remaining: remaining }); + removeNode(document.getElementById('less-error-message:' + extractId(href))); + } catch (e) { + error(e, href); + } + }); + } catch (e) { + error(e, href); + } + } + }, function (status, url) { + throw new(Error)("Couldn't load " + url + " (" + status + ")"); + }); +} + +function extractId(href) { + return href.replace(/^[a-z]+:\/\/?[^\/]+/, '' ) // Remove protocol & domain + .replace(/^\//, '' ) // Remove root / + .replace(/\?.*$/, '' ) // Remove query + .replace(/\.[^\.\/]+$/, '' ) // Remove file extension + .replace(/[^\.\w-]+/g, '-') // Replace illegal characters + .replace(/\./g, ':'); // Replace dots with colons(for valid id) +} + +function createCSS(styles, sheet, lastModified) { + var css; + + // Strip the query-string + var href = sheet.href ? sheet.href.replace(/\?.*$/, '') : ''; + + // If there is no title set, use the filename, minus the extension + var id = 'less:' + (sheet.title || extractId(href)); + + // If the stylesheet doesn't exist, create a new node + if ((css = document.getElementById(id)) === null) { + css = document.createElement('style'); + css.type = 'text/css'; + css.media = sheet.media || 'screen'; + css.id = id; + document.getElementsByTagName('head')[0].appendChild(css); + } + + if (css.styleSheet) { // IE + try { + css.styleSheet.cssText = styles; + } catch (e) { + throw new(Error)("Couldn't reassign styleSheet.cssText."); + } + } else { + (function (node) { + if (css.childNodes.length > 0) { + if (css.firstChild.nodeValue !== node.nodeValue) { + css.replaceChild(node, css.firstChild); + } + } else { + css.appendChild(node); + } + })(document.createTextNode(styles)); + } + + // Don't update the local store if the file wasn't modified + if (lastModified && cache) { + log('saving ' + href + ' to cache.'); + cache.setItem(href, styles); + cache.setItem(href + ':timestamp', lastModified); + } +} + +function xhr(url, type, callback, errback) { + var xhr = getXMLHttpRequest(); + var async = isFileProtocol ? false : less.async; + + if (typeof(xhr.overrideMimeType) === 'function') { + xhr.overrideMimeType('text/css'); + } + xhr.open('GET', url, async); + xhr.setRequestHeader('Accept', type || 'text/x-less, text/css; q=0.9, */*; q=0.5'); + xhr.send(null); + + if (isFileProtocol) { + if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) { + callback(xhr.responseText); + } else { + errback(xhr.status, url); + } + } else if (async) { + xhr.onreadystatechange = function () { + if (xhr.readyState == 4) { + handleResponse(xhr, callback, errback); + } + }; + } else { + handleResponse(xhr, callback, errback); + } + + function handleResponse(xhr, callback, errback) { + if (xhr.status >= 200 && xhr.status < 300) { + callback(xhr.responseText, + xhr.getResponseHeader("Last-Modified")); + } else if (typeof(errback) === 'function') { + errback(xhr.status, url); + } + } +} + +function getXMLHttpRequest() { + if (window.XMLHttpRequest) { + return new(XMLHttpRequest); + } else { + try { + return new(ActiveXObject)("MSXML2.XMLHTTP.3.0"); + } catch (e) { + log("browser doesn't support AJAX."); + return null; + } + } +} + +function removeNode(node) { + return node && node.parentNode.removeChild(node); +} + +function log(str) { + if (less.env == 'development' && typeof(console) !== "undefined") { console.log('less: ' + str) } +} + +function error(e, href) { + var id = 'less-error-message:' + extractId(href); + var template = '
  • {content}
    • '; + var elem = document.createElement('div'), timer, content, error = []; + var filename = e.filename || href; + + elem.id = id; + elem.className = "less-error-message"; + + content = '

    ' + (e.message || 'There is an error in your .less file') + + '

    ' + '

    in ' + filename + " "; + + var errorline = function (e, i, classname) { + if (e.extract[i]) { + error.push(template.replace(/\{line\}/, parseInt(e.line) + (i - 1)) + .replace(/\{class\}/, classname) + .replace(/\{content\}/, e.extract[i])); + } + }; + + if (e.stack) { + content += '
    ' + e.stack.split('\n').slice(1).join('
    '); + } else if (e.extract) { + errorline(e, 0, ''); + errorline(e, 1, 'line'); + errorline(e, 2, ''); + content += 'on line ' + e.line + ', column ' + (e.column + 1) + ':

    ' + + '
      ' + error.join('') + '
    '; + } + elem.innerHTML = content; + + // CSS for error messages + createCSS([ + '.less-error-message ul, .less-error-message li {', + 'list-style-type: none;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'margin: 0;', + '}', + '.less-error-message label {', + 'font-size: 12px;', + 'margin-right: 15px;', + 'padding: 4px 0;', + 'color: #cc7777;', + '}', + '.less-error-message pre {', + 'color: #dd6666;', + 'padding: 4px 0;', + 'margin: 0;', + 'display: inline-block;', + '}', + '.less-error-message pre.line {', + 'color: #ff0000;', + '}', + '.less-error-message h3 {', + 'font-size: 20px;', + 'font-weight: bold;', + 'padding: 15px 0 5px 0;', + 'margin: 0;', + '}', + '.less-error-message a {', + 'color: #10a', + '}', + '.less-error-message .error {', + 'color: red;', + 'font-weight: bold;', + 'padding-bottom: 2px;', + 'border-bottom: 1px dashed red;', + '}' + ].join('\n'), { title: 'error-message' }); + + elem.style.cssText = [ + "font-family: Arial, sans-serif", + "border: 1px solid #e00", + "background-color: #eee", + "border-radius: 5px", + "-webkit-border-radius: 5px", + "-moz-border-radius: 5px", + "color: #e00", + "padding: 15px", + "margin-bottom: 15px" + ].join(';'); + + if (less.env == 'development') { + timer = setInterval(function () { + if (document.body) { + if (document.getElementById(id)) { + document.body.replaceChild(elem, document.getElementById(id)); + } else { + document.body.insertBefore(elem, document.body.firstChild); + } + clearInterval(timer); + } + }, 10); + } +} + diff --git a/node_modules/less-brunch/node_modules/less/lib/less/colors.js b/node_modules/less-brunch/node_modules/less/lib/less/colors.js new file mode 100644 index 0000000..e509b60 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/colors.js @@ -0,0 +1,151 @@ +(function (tree) { + tree.colors = { + 'aliceblue':'#f0f8ff', + 'antiquewhite':'#faebd7', + 'aqua':'#00ffff', + 'aquamarine':'#7fffd4', + 'azure':'#f0ffff', + 'beige':'#f5f5dc', + 'bisque':'#ffe4c4', + 'black':'#000000', + 'blanchedalmond':'#ffebcd', + 'blue':'#0000ff', + 'blueviolet':'#8a2be2', + 'brown':'#a52a2a', + 'burlywood':'#deb887', + 'cadetblue':'#5f9ea0', + 'chartreuse':'#7fff00', + 'chocolate':'#d2691e', + 'coral':'#ff7f50', + 'cornflowerblue':'#6495ed', + 'cornsilk':'#fff8dc', + 'crimson':'#dc143c', + 'cyan':'#00ffff', + 'darkblue':'#00008b', + 'darkcyan':'#008b8b', + 'darkgoldenrod':'#b8860b', + 'darkgray':'#a9a9a9', + 'darkgrey':'#a9a9a9', + 'darkgreen':'#006400', + 'darkkhaki':'#bdb76b', + 'darkmagenta':'#8b008b', + 'darkolivegreen':'#556b2f', + 'darkorange':'#ff8c00', + 'darkorchid':'#9932cc', + 'darkred':'#8b0000', + 'darksalmon':'#e9967a', + 'darkseagreen':'#8fbc8f', + 'darkslateblue':'#483d8b', + 'darkslategray':'#2f4f4f', + 'darkslategrey':'#2f4f4f', + 'darkturquoise':'#00ced1', + 'darkviolet':'#9400d3', + 'deeppink':'#ff1493', + 'deepskyblue':'#00bfff', + 'dimgray':'#696969', + 'dimgrey':'#696969', + 'dodgerblue':'#1e90ff', + 'firebrick':'#b22222', + 'floralwhite':'#fffaf0', + 'forestgreen':'#228b22', + 'fuchsia':'#ff00ff', + 'gainsboro':'#dcdcdc', + 'ghostwhite':'#f8f8ff', + 'gold':'#ffd700', + 'goldenrod':'#daa520', + 'gray':'#808080', + 'grey':'#808080', + 'green':'#008000', + 'greenyellow':'#adff2f', + 'honeydew':'#f0fff0', + 'hotpink':'#ff69b4', + 'indianred':'#cd5c5c', + 'indigo':'#4b0082', + 'ivory':'#fffff0', + 'khaki':'#f0e68c', + 'lavender':'#e6e6fa', + 'lavenderblush':'#fff0f5', + 'lawngreen':'#7cfc00', + 'lemonchiffon':'#fffacd', + 'lightblue':'#add8e6', + 'lightcoral':'#f08080', + 'lightcyan':'#e0ffff', + 'lightgoldenrodyellow':'#fafad2', + 'lightgray':'#d3d3d3', + 'lightgrey':'#d3d3d3', + 'lightgreen':'#90ee90', + 'lightpink':'#ffb6c1', + 'lightsalmon':'#ffa07a', + 'lightseagreen':'#20b2aa', + 'lightskyblue':'#87cefa', + 'lightslategray':'#778899', + 'lightslategrey':'#778899', + 'lightsteelblue':'#b0c4de', + 'lightyellow':'#ffffe0', + 'lime':'#00ff00', + 'limegreen':'#32cd32', + 'linen':'#faf0e6', + 'magenta':'#ff00ff', + 'maroon':'#800000', + 'mediumaquamarine':'#66cdaa', + 'mediumblue':'#0000cd', + 'mediumorchid':'#ba55d3', + 'mediumpurple':'#9370d8', + 'mediumseagreen':'#3cb371', + 'mediumslateblue':'#7b68ee', + 'mediumspringgreen':'#00fa9a', + 'mediumturquoise':'#48d1cc', + 'mediumvioletred':'#c71585', + 'midnightblue':'#191970', + 'mintcream':'#f5fffa', + 'mistyrose':'#ffe4e1', + 'moccasin':'#ffe4b5', + 'navajowhite':'#ffdead', + 'navy':'#000080', + 'oldlace':'#fdf5e6', + 'olive':'#808000', + 'olivedrab':'#6b8e23', + 'orange':'#ffa500', + 'orangered':'#ff4500', + 'orchid':'#da70d6', + 'palegoldenrod':'#eee8aa', + 'palegreen':'#98fb98', + 'paleturquoise':'#afeeee', + 'palevioletred':'#d87093', + 'papayawhip':'#ffefd5', + 'peachpuff':'#ffdab9', + 'peru':'#cd853f', + 'pink':'#ffc0cb', + 'plum':'#dda0dd', + 'powderblue':'#b0e0e6', + 'purple':'#800080', + 'red':'#ff0000', + 'rosybrown':'#bc8f8f', + 'royalblue':'#4169e1', + 'saddlebrown':'#8b4513', + 'salmon':'#fa8072', + 'sandybrown':'#f4a460', + 'seagreen':'#2e8b57', + 'seashell':'#fff5ee', + 'sienna':'#a0522d', + 'silver':'#c0c0c0', + 'skyblue':'#87ceeb', + 'slateblue':'#6a5acd', + 'slategray':'#708090', + 'slategrey':'#708090', + 'snow':'#fffafa', + 'springgreen':'#00ff7f', + 'steelblue':'#4682b4', + 'tan':'#d2b48c', + 'teal':'#008080', + 'thistle':'#d8bfd8', + 'tomato':'#ff6347', + 'turquoise':'#40e0d0', + 'violet':'#ee82ee', + 'wheat':'#f5deb3', + 'white':'#ffffff', + 'whitesmoke':'#f5f5f5', + 'yellow':'#ffff00', + 'yellowgreen':'#9acd32' + }; +})(require('./tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/cssmin.js b/node_modules/less-brunch/node_modules/less/lib/less/cssmin.js new file mode 100644 index 0000000..427de71 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/cssmin.js @@ -0,0 +1,355 @@ +/** + * cssmin.js + * Author: Stoyan Stefanov - http://phpied.com/ + * This is a JavaScript port of the CSS minification tool + * distributed with YUICompressor, itself a port + * of the cssmin utility by Isaac Schlueter - http://foohack.com/ + * Permission is hereby granted to use the JavaScript version under the same + * conditions as the YUICompressor (original YUICompressor note below). + */ + +/* +* YUI Compressor +* http://developer.yahoo.com/yui/compressor/ +* Author: Julien Lecomte - http://www.julienlecomte.net/ +* Copyright (c) 2011 Yahoo! Inc. All rights reserved. +* The copyrights embodied in the content of this file are licensed +* by Yahoo! Inc. under the BSD (revised) open source license. +*/ +var YAHOO = YAHOO || {}; +YAHOO.compressor = YAHOO.compressor || {}; + +/** + * Utility method to replace all data urls with tokens before we start + * compressing, to avoid performance issues running some of the subsequent + * regexes against large strings chunks. + * + * @private + * @method _extractDataUrls + * @param {String} css The input css + * @param {Array} The global array of tokens to preserve + * @returns String The processed css + */ +YAHOO.compressor._extractDataUrls = function (css, preservedTokens) { + + // Leave data urls alone to increase parse performance. + var maxIndex = css.length - 1, + appendIndex = 0, + startIndex, + endIndex, + terminator, + foundTerminator, + sb = [], + m, + preserver, + token, + pattern = /url\(\s*(["']?)data\:/g; + + // Since we need to account for non-base64 data urls, we need to handle + // ' and ) being part of the data string. Hence switching to indexOf, + // to determine whether or not we have matching string terminators and + // handling sb appends directly, instead of using matcher.append* methods. + + while ((m = pattern.exec(css)) !== null) { + + startIndex = m.index + 4; // "url(".length() + terminator = m[1]; // ', " or empty (not quoted) + + if (terminator.length === 0) { + terminator = ")"; + } + + foundTerminator = false; + + endIndex = pattern.lastIndex - 1; + + while(foundTerminator === false && endIndex+1 <= maxIndex) { + endIndex = css.indexOf(terminator, endIndex + 1); + + // endIndex == 0 doesn't really apply here + if ((endIndex > 0) && (css.charAt(endIndex - 1) !== '\\')) { + foundTerminator = true; + if (")" != terminator) { + endIndex = css.indexOf(")", endIndex); + } + } + } + + // Enough searching, start moving stuff over to the buffer + sb.push(css.substring(appendIndex, m.index)); + + if (foundTerminator) { + token = css.substring(startIndex, endIndex); + token = token.replace(/\s+/g, ""); + preservedTokens.push(token); + + preserver = "url(___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___)"; + sb.push(preserver); + + appendIndex = endIndex + 1; + } else { + // No end terminator found, re-add the whole match. Should we throw/warn here? + sb.push(css.substring(m.index, pattern.lastIndex)); + appendIndex = pattern.lastIndex; + } + } + + sb.push(css.substring(appendIndex)); + + return sb.join(""); +}; + +/** + * Utility method to compress hex color values of the form #AABBCC to #ABC. + * + * DOES NOT compress CSS ID selectors which match the above pattern (which would break things). + * e.g. #AddressForm { ... } + * + * DOES NOT compress IE filters, which have hex color values (which would break things). + * e.g. filter: chroma(color="#FFFFFF"); + * + * DOES NOT compress invalid hex values. + * e.g. background-color: #aabbccdd + * + * @private + * @method _compressHexColors + * @param {String} css The input css + * @returns String The processed css + */ +YAHOO.compressor._compressHexColors = function(css) { + + // Look for hex colors inside { ... } (to avoid IDs) and which don't have a =, or a " in front of them (to avoid filters) + var pattern = /(\=\s*?["']?)?#([0-9a-f])([0-9a-f])([0-9a-f])([0-9a-f])([0-9a-f])([0-9a-f])(\}|[^0-9a-f{][^{]*?\})/gi, + m, + index = 0, + isFilter, + sb = []; + + while ((m = pattern.exec(css)) !== null) { + + sb.push(css.substring(index, m.index)); + + isFilter = m[1]; + + if (isFilter) { + // Restore, maintain case, otherwise filter will break + sb.push(m[1] + "#" + (m[2] + m[3] + m[4] + m[5] + m[6] + m[7])); + } else { + if (m[2].toLowerCase() == m[3].toLowerCase() && + m[4].toLowerCase() == m[5].toLowerCase() && + m[6].toLowerCase() == m[7].toLowerCase()) { + + // Compress. + sb.push("#" + (m[3] + m[5] + m[7]).toLowerCase()); + } else { + // Non compressible color, restore but lower case. + sb.push("#" + (m[2] + m[3] + m[4] + m[5] + m[6] + m[7]).toLowerCase()); + } + } + + index = pattern.lastIndex = pattern.lastIndex - m[8].length; + } + + sb.push(css.substring(index)); + + return sb.join(""); +}; + +YAHOO.compressor.cssmin = function (css, linebreakpos) { + + var startIndex = 0, + endIndex = 0, + i = 0, max = 0, + preservedTokens = [], + comments = [], + token = '', + totallen = css.length, + placeholder = ''; + + css = this._extractDataUrls(css, preservedTokens); + + // collect all comment blocks... + while ((startIndex = css.indexOf("/*", startIndex)) >= 0) { + endIndex = css.indexOf("*/", startIndex + 2); + if (endIndex < 0) { + endIndex = totallen; + } + token = css.slice(startIndex + 2, endIndex); + comments.push(token); + css = css.slice(0, startIndex + 2) + "___YUICSSMIN_PRESERVE_CANDIDATE_COMMENT_" + (comments.length - 1) + "___" + css.slice(endIndex); + startIndex += 2; + } + + // preserve strings so their content doesn't get accidentally minified + css = css.replace(/("([^\\"]|\\.|\\)*")|('([^\\']|\\.|\\)*')/g, function (match) { + var i, max, quote = match.substring(0, 1); + + match = match.slice(1, -1); + + // maybe the string contains a comment-like substring? + // one, maybe more? put'em back then + if (match.indexOf("___YUICSSMIN_PRESERVE_CANDIDATE_COMMENT_") >= 0) { + for (i = 0, max = comments.length; i < max; i = i + 1) { + match = match.replace("___YUICSSMIN_PRESERVE_CANDIDATE_COMMENT_" + i + "___", comments[i]); + } + } + + // minify alpha opacity in filter strings + match = match.replace(/progid:DXImageTransform\.Microsoft\.Alpha\(Opacity=/gi, "alpha(opacity="); + + preservedTokens.push(match); + return quote + "___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___" + quote; + }); + + // strings are safe, now wrestle the comments + for (i = 0, max = comments.length; i < max; i = i + 1) { + + token = comments[i]; + placeholder = "___YUICSSMIN_PRESERVE_CANDIDATE_COMMENT_" + i + "___"; + + // ! in the first position of the comment means preserve + // so push to the preserved tokens keeping the ! + if (token.charAt(0) === "!") { + preservedTokens.push(token); + css = css.replace(placeholder, "___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___"); + continue; + } + + // \ in the last position looks like hack for Mac/IE5 + // shorten that to /*\*/ and the next one to /**/ + if (token.charAt(token.length - 1) === "\\") { + preservedTokens.push("\\"); + css = css.replace(placeholder, "___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___"); + i = i + 1; // attn: advancing the loop + preservedTokens.push(""); + css = css.replace("___YUICSSMIN_PRESERVE_CANDIDATE_COMMENT_" + i + "___", "___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___"); + continue; + } + + // keep empty comments after child selectors (IE7 hack) + // e.g. html >/**/ body + if (token.length === 0) { + startIndex = css.indexOf(placeholder); + if (startIndex > 2) { + if (css.charAt(startIndex - 3) === '>') { + preservedTokens.push(""); + css = css.replace(placeholder, "___YUICSSMIN_PRESERVED_TOKEN_" + (preservedTokens.length - 1) + "___"); + } + } + } + + // in all other cases kill the comment + css = css.replace("/*" + placeholder + "*/", ""); + } + + + // Normalize all whitespace strings to single spaces. Easier to work with that way. + css = css.replace(/\s+/g, " "); + + // Remove the spaces before the things that should not have spaces before them. + // But, be careful not to turn "p :link {...}" into "p:link{...}" + // Swap out any pseudo-class colons with the token, and then swap back. + css = css.replace(/(^|\})(([^\{:])+:)+([^\{]*\{)/g, function (m) { + return m.replace(":", "___YUICSSMIN_PSEUDOCLASSCOLON___"); + }); + css = css.replace(/\s+([!{};:>+\(\)\],])/g, '$1'); + css = css.replace(/___YUICSSMIN_PSEUDOCLASSCOLON___/g, ":"); + + // retain space for special IE6 cases + css = css.replace(/:first-(line|letter)(\{|,)/g, ":first-$1 $2"); + + // no space after the end of a preserved comment + css = css.replace(/\*\/ /g, '*/'); + + + // If there is a @charset, then only allow one, and push to the top of the file. + css = css.replace(/^(.*)(@charset "[^"]*";)/gi, '$2$1'); + css = css.replace(/^(\s*@charset [^;]+;\s*)+/gi, '$1'); + + // Put the space back in some cases, to support stuff like + // @media screen and (-webkit-min-device-pixel-ratio:0){ + css = css.replace(/\band\(/gi, "and ("); + + + // Remove the spaces after the things that should not have spaces after them. + css = css.replace(/([!{}:;>+\(\[,])\s+/g, '$1'); + + // remove unnecessary semicolons + css = css.replace(/;+\}/g, "}"); + + // Replace 0(px,em,%) with 0. + css = css.replace(/([\s:])(0)(px|em|%|in|cm|mm|pc|pt|ex)/gi, "$1$2"); + + // Replace 0 0 0 0; with 0. + css = css.replace(/:0 0 0 0(;|\})/g, ":0$1"); + css = css.replace(/:0 0 0(;|\})/g, ":0$1"); + css = css.replace(/:0 0(;|\})/g, ":0$1"); + + // Replace background-position:0; with background-position:0 0; + // same for transform-origin + css = css.replace(/(background-position|transform-origin|webkit-transform-origin|moz-transform-origin|o-transform-origin|ms-transform-origin):0(;|\})/gi, function(all, prop, tail) { + return prop.toLowerCase() + ":0 0" + tail; + }); + + // Replace 0.6 to .6, but only when preceded by : or a white-space + css = css.replace(/(:|\s)0+\.(\d+)/g, "$1.$2"); + + // Shorten colors from rgb(51,102,153) to #336699 + // This makes it more likely that it'll get further compressed in the next step. + css = css.replace(/rgb\s*\(\s*([0-9,\s]+)\s*\)/gi, function () { + var i, rgbcolors = arguments[1].split(','); + for (i = 0; i < rgbcolors.length; i = i + 1) { + rgbcolors[i] = parseInt(rgbcolors[i], 10).toString(16); + if (rgbcolors[i].length === 1) { + rgbcolors[i] = '0' + rgbcolors[i]; + } + } + return '#' + rgbcolors.join(''); + }); + + // Shorten colors from #AABBCC to #ABC. + css = this._compressHexColors(css); + + // border: none -> border:0 + css = css.replace(/(border|border-top|border-right|border-bottom|border-right|outline|background):none(;|\})/gi, function(all, prop, tail) { + return prop.toLowerCase() + ":0" + tail; + }); + + // shorter opacity IE filter + css = css.replace(/progid:DXImageTransform\.Microsoft\.Alpha\(Opacity=/gi, "alpha(opacity="); + + // Remove empty rules. + css = css.replace(/[^\};\{\/]+\{\}/g, ""); + + if (linebreakpos >= 0) { + // Some source control tools don't like it when files containing lines longer + // than, say 8000 characters, are checked in. The linebreak option is used in + // that case to split long lines after a specific column. + startIndex = 0; + i = 0; + while (i < css.length) { + i = i + 1; + if (css[i - 1] === '}' && i - startIndex > linebreakpos) { + css = css.slice(0, i) + '\n' + css.slice(i); + startIndex = i; + } + } + } + + // Replace multiple semi-colons in a row by a single one + // See SF bug #1980989 + css = css.replace(/;;+/g, ";"); + + // restore preserved comments and strings + for (i = 0, max = preservedTokens.length; i < max; i = i + 1) { + css = css.replace("___YUICSSMIN_PRESERVED_TOKEN_" + i + "___", preservedTokens[i]); + } + + // Trim the final string (for any leading or trailing white spaces) + css = css.replace(/^\s+|\s+$/g, ""); + + return css; + +}; + +exports.compressor = YAHOO.compressor; diff --git a/node_modules/less-brunch/node_modules/less/lib/less/functions.js b/node_modules/less-brunch/node_modules/less/lib/less/functions.js new file mode 100644 index 0000000..6eb34ba --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/functions.js @@ -0,0 +1,228 @@ +(function (tree) { + +tree.functions = { + rgb: function (r, g, b) { + return this.rgba(r, g, b, 1.0); + }, + rgba: function (r, g, b, a) { + var rgb = [r, g, b].map(function (c) { return number(c) }), + a = number(a); + return new(tree.Color)(rgb, a); + }, + hsl: function (h, s, l) { + return this.hsla(h, s, l, 1.0); + }, + hsla: function (h, s, l, a) { + h = (number(h) % 360) / 360; + s = number(s); l = number(l); a = number(a); + + var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s; + var m1 = l * 2 - m2; + + return this.rgba(hue(h + 1/3) * 255, + hue(h) * 255, + hue(h - 1/3) * 255, + a); + + function hue(h) { + h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h); + if (h * 6 < 1) return m1 + (m2 - m1) * h * 6; + else if (h * 2 < 1) return m2; + else if (h * 3 < 2) return m1 + (m2 - m1) * (2/3 - h) * 6; + else return m1; + } + }, + hue: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().h)); + }, + saturation: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().s * 100), '%'); + }, + lightness: function (color) { + return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%'); + }, + alpha: function (color) { + return new(tree.Dimension)(color.toHSL().a); + }, + saturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s += amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + desaturate: function (color, amount) { + var hsl = color.toHSL(); + + hsl.s -= amount.value / 100; + hsl.s = clamp(hsl.s); + return hsla(hsl); + }, + lighten: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l += amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + darken: function (color, amount) { + var hsl = color.toHSL(); + + hsl.l -= amount.value / 100; + hsl.l = clamp(hsl.l); + return hsla(hsl); + }, + fadein: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a += amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fadeout: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a -= amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + fade: function (color, amount) { + var hsl = color.toHSL(); + + hsl.a = amount.value / 100; + hsl.a = clamp(hsl.a); + return hsla(hsl); + }, + spin: function (color, amount) { + var hsl = color.toHSL(); + var hue = (hsl.h + amount.value) % 360; + + hsl.h = hue < 0 ? 360 + hue : hue; + + return hsla(hsl); + }, + // + // Copyright (c) 2006-2009 Hampton Catlin, Nathan Weizenbaum, and Chris Eppstein + // http://sass-lang.com + // + mix: function (color1, color2, weight) { + var p = weight.value / 100.0; + var w = p * 2 - 1; + var a = color1.toHSL().a - color2.toHSL().a; + + var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + var w2 = 1 - w1; + + var rgb = [color1.rgb[0] * w1 + color2.rgb[0] * w2, + color1.rgb[1] * w1 + color2.rgb[1] * w2, + color1.rgb[2] * w1 + color2.rgb[2] * w2]; + + var alpha = color1.alpha * p + color2.alpha * (1 - p); + + return new(tree.Color)(rgb, alpha); + }, + greyscale: function (color) { + return this.desaturate(color, new(tree.Dimension)(100)); + }, + e: function (str) { + return new(tree.Anonymous)(str instanceof tree.JavaScript ? str.evaluated : str); + }, + escape: function (str) { + return new(tree.Anonymous)(encodeURI(str.value).replace(/=/g, "%3D").replace(/:/g, "%3A").replace(/#/g, "%23").replace(/;/g, "%3B").replace(/\(/g, "%28").replace(/\)/g, "%29")); + }, + '%': function (quoted /* arg, arg, ...*/) { + var args = Array.prototype.slice.call(arguments, 1), + str = quoted.value; + + for (var i = 0; i < args.length; i++) { + str = str.replace(/%[sda]/i, function(token) { + var value = token.match(/s/i) ? args[i].value : args[i].toCSS(); + return token.match(/[A-Z]$/) ? encodeURIComponent(value) : value; + }); + } + str = str.replace(/%%/g, '%'); + return new(tree.Quoted)('"' + str + '"', str); + }, + round: function (n) { + return this._math('round', n); + }, + ceil: function (n) { + return this._math('ceil', n); + }, + floor: function (n) { + return this._math('floor', n); + }, + _math: function (fn, n) { + if (n instanceof tree.Dimension) { + return new(tree.Dimension)(Math[fn](number(n)), n.unit); + } else if (typeof(n) === 'number') { + return Math[fn](n); + } else { + throw { type: "Argument", message: "argument must be a number" }; + } + }, + argb: function (color) { + return new(tree.Anonymous)(color.toARGB()); + + }, + percentage: function (n) { + return new(tree.Dimension)(n.value * 100, '%'); + }, + color: function (n) { + if (n instanceof tree.Quoted) { + return new(tree.Color)(n.value.slice(1)); + } else { + throw { type: "Argument", message: "argument must be a string" }; + } + }, + iscolor: function (n) { + return this._isa(n, tree.Color); + }, + isnumber: function (n) { + return this._isa(n, tree.Dimension); + }, + isstring: function (n) { + return this._isa(n, tree.Quoted); + }, + iskeyword: function (n) { + return this._isa(n, tree.Keyword); + }, + isurl: function (n) { + return this._isa(n, tree.URL); + }, + ispixel: function (n) { + return (n instanceof tree.Dimension) && n.unit === 'px' ? tree.True : tree.False; + }, + ispercentage: function (n) { + return (n instanceof tree.Dimension) && n.unit === '%' ? tree.True : tree.False; + }, + isem: function (n) { + return (n instanceof tree.Dimension) && n.unit === 'em' ? tree.True : tree.False; + }, + _isa: function (n, Type) { + return (n instanceof Type) ? tree.True : tree.False; + } +}; + +function hsla(hsla) { + return tree.functions.hsla(hsla.h, hsla.s, hsla.l, hsla.a); +} + +function number(n) { + if (n instanceof tree.Dimension) { + return parseFloat(n.unit == '%' ? n.value / 100 : n.value); + } else if (typeof(n) === 'number') { + return n; + } else { + throw { + error: "RuntimeError", + message: "color functions take numbers as parameters" + }; + } +} + +function clamp(val) { + return Math.min(1, Math.max(0, val)); +} + +})(require('./tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/index.js b/node_modules/less-brunch/node_modules/less/lib/less/index.js new file mode 100644 index 0000000..a11fa99 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/index.js @@ -0,0 +1,148 @@ +var path = require('path'), + sys = require('util'), + fs = require('fs'); + +var less = { + version: [1, 3, 0], + Parser: require('./parser').Parser, + importer: require('./parser').importer, + tree: require('./tree'), + render: function (input, options, callback) { + options = options || {}; + + if (typeof(options) === 'function') { + callback = options, options = {}; + } + + var parser = new(less.Parser)(options), + ee; + + if (callback) { + parser.parse(input, function (e, root) { + callback(e, root && root.toCSS && root.toCSS(options)); + }); + } else { + ee = new(require('events').EventEmitter); + + process.nextTick(function () { + parser.parse(input, function (e, root) { + if (e) { ee.emit('error', e) } + else { ee.emit('success', root.toCSS(options)) } + }); + }); + return ee; + } + }, + writeError: function (ctx, options) { + options = options || {}; + + var message = ""; + var extract = ctx.extract; + var error = []; + var stylize = options.color ? less.stylize : function (str) { return str }; + + if (options.silent) { return } + + if (ctx.stack) { return sys.error(stylize(ctx.stack, 'red')) } + + if (!ctx.hasOwnProperty('index')) { + return sys.error(ctx.stack || ctx.message); + } + + if (typeof(extract[0]) === 'string') { + error.push(stylize((ctx.line - 1) + ' ' + extract[0], 'grey')); + } + + if (extract[1]) { + error.push(ctx.line + ' ' + extract[1].slice(0, ctx.column) + + stylize(stylize(stylize(extract[1][ctx.column], 'bold') + + extract[1].slice(ctx.column + 1), 'red'), 'inverse')); + } + + if (typeof(extract[2]) === 'string') { + error.push(stylize((ctx.line + 1) + ' ' + extract[2], 'grey')); + } + error = error.join('\n') + '\033[0m\n'; + + message += stylize(ctx.type + 'Error: ' + ctx.message, 'red'); + ctx.filename && (message += stylize(' in ', 'red') + ctx.filename + + stylize(':' + ctx.line + ':' + ctx.column, 'grey')); + + sys.error(message, error); + + if (ctx.callLine) { + sys.error(stylize('from ', 'red') + (ctx.filename || '')); + sys.error(stylize(ctx.callLine, 'grey') + ' ' + ctx.callExtract); + } + } +}; + +['color', 'directive', 'operation', 'dimension', + 'keyword', 'variable', 'ruleset', 'element', + 'selector', 'quoted', 'expression', 'rule', + 'call', 'url', 'alpha', 'import', + 'mixin', 'comment', 'anonymous', 'value', + 'javascript', 'assignment', 'condition', 'paren', + 'media' +].forEach(function (n) { + require('./tree/' + n); +}); + +less.Parser.importer = function (file, paths, callback, env) { + var pathname; + + // TODO: Undo this at some point, + // or use different approach. + paths.unshift('.'); + + for (var i = 0; i < paths.length; i++) { + try { + pathname = path.join(paths[i], file); + fs.statSync(pathname); + break; + } catch (e) { + pathname = null; + } + } + + if (pathname) { + fs.readFile(pathname, 'utf-8', function(e, data) { + if (e) return callback(e); + + new(less.Parser)({ + paths: [path.dirname(pathname)].concat(paths), + filename: pathname + }).parse(data, function (e, root) { + callback(e, root, data); + }); + }); + } else { + if (typeof(env.errback) === "function") { + env.errback(file, paths, callback); + } else { + callback({ type: 'File', message: "'" + file + "' wasn't found.\n" }); + } + } +} + +require('./functions'); +require('./colors'); + +for (var k in less) { exports[k] = less[k] } + +// Stylize a string +function stylize(str, style) { + var styles = { + 'bold' : [1, 22], + 'inverse' : [7, 27], + 'underline' : [4, 24], + 'yellow' : [33, 39], + 'green' : [32, 39], + 'red' : [31, 39], + 'grey' : [90, 39] + }; + return '\033[' + styles[style][0] + 'm' + str + + '\033[' + styles[style][1] + 'm'; +} +less.stylize = stylize; + diff --git a/node_modules/less-brunch/node_modules/less/lib/less/parser.js b/node_modules/less-brunch/node_modules/less/lib/less/parser.js new file mode 100644 index 0000000..6ea4f8b --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/parser.js @@ -0,0 +1,1305 @@ +var less, tree; + +if (typeof environment === "object" && ({}).toString.call(environment) === "[object Environment]") { + // Rhino + // Details on how to detect Rhino: https://github.com/ringo/ringojs/issues/88 + if (typeof(window) === 'undefined') { less = {} } + else { less = window.less = {} } + tree = less.tree = {}; + less.mode = 'rhino'; +} else if (typeof(window) === 'undefined') { + // Node.js + less = exports, + tree = require('./tree'); + less.mode = 'node'; +} else { + // Browser + if (typeof(window.less) === 'undefined') { window.less = {} } + less = window.less, + tree = window.less.tree = {}; + less.mode = 'browser'; +} +// +// less.js - parser +// +// A relatively straight-forward predictive parser. +// There is no tokenization/lexing stage, the input is parsed +// in one sweep. +// +// To make the parser fast enough to run in the browser, several +// optimization had to be made: +// +// - Matching and slicing on a huge input is often cause of slowdowns. +// The solution is to chunkify the input into smaller strings. +// The chunks are stored in the `chunks` var, +// `j` holds the current chunk index, and `current` holds +// the index of the current chunk in relation to `input`. +// This gives us an almost 4x speed-up. +// +// - In many cases, we don't need to match individual tokens; +// for example, if a value doesn't hold any variables, operations +// or dynamic references, the parser can effectively 'skip' it, +// treating it as a literal. +// An example would be '1px solid #000' - which evaluates to itself, +// we don't need to know what the individual components are. +// The drawback, of course is that you don't get the benefits of +// syntax-checking on the CSS. This gives us a 50% speed-up in the parser, +// and a smaller speed-up in the code-gen. +// +// +// Token matching is done with the `$` function, which either takes +// a terminal string or regexp, or a non-terminal function to call. +// It also takes care of moving all the indices forwards. +// +// +less.Parser = function Parser(env) { + var input, // LeSS input string + i, // current index in `input` + j, // current chunk + temp, // temporarily holds a chunk's state, for backtracking + memo, // temporarily holds `i`, when backtracking + furthest, // furthest index the parser has gone to + chunks, // chunkified input + current, // index of current chunk, in `input` + parser; + + var that = this; + + // This function is called after all files + // have been imported through `@import`. + var finish = function () {}; + + var imports = this.imports = { + paths: env && env.paths || [], // Search paths, when importing + queue: [], // Files which haven't been imported yet + files: {}, // Holds the imported parse trees + contents: {}, // Holds the imported file contents + mime: env && env.mime, // MIME type of .less files + error: null, // Error in parsing/evaluating an import + push: function (path, callback) { + var that = this; + this.queue.push(path); + + // + // Import a file asynchronously + // + less.Parser.importer(path, this.paths, function (e, root, contents) { + that.queue.splice(that.queue.indexOf(path), 1); // Remove the path from the queue + that.files[path] = root; // Store the root + that.contents[path] = contents; + + if (e && !that.error) { that.error = e } + callback(e, root); + + if (that.queue.length === 0) { finish() } // Call `finish` if we're done importing + }, env); + } + }; + + function save() { temp = chunks[j], memo = i, current = i } + function restore() { chunks[j] = temp, i = memo, current = i } + + function sync() { + if (i > current) { + chunks[j] = chunks[j].slice(i - current); + current = i; + } + } + // + // Parse from a token, regexp or string, and move forward if match + // + function $(tok) { + var match, args, length, c, index, endIndex, k, mem; + + // + // Non-terminal + // + if (tok instanceof Function) { + return tok.call(parser.parsers); + // + // Terminal + // + // Either match a single character in the input, + // or match a regexp in the current chunk (chunk[j]). + // + } else if (typeof(tok) === 'string') { + match = input.charAt(i) === tok ? tok : null; + length = 1; + sync (); + } else { + sync (); + + if (match = tok.exec(chunks[j])) { + length = match[0].length; + } else { + return null; + } + } + + // The match is confirmed, add the match length to `i`, + // and consume any extra white-space characters (' ' || '\n') + // which come after that. The reason for this is that LeSS's + // grammar is mostly white-space insensitive. + // + if (match) { + mem = i += length; + endIndex = i + chunks[j].length - length; + + while (i < endIndex) { + c = input.charCodeAt(i); + if (! (c === 32 || c === 10 || c === 9)) { break } + i++; + } + chunks[j] = chunks[j].slice(length + (i - mem)); + current = i; + + if (chunks[j].length === 0 && j < chunks.length - 1) { j++ } + + if(typeof(match) === 'string') { + return match; + } else { + return match.length === 1 ? match[0] : match; + } + } + } + + function expect(arg, msg) { + var result = $(arg); + if (! result) { + error(msg || (typeof(arg) === 'string' ? "expected '" + arg + "' got '" + input.charAt(i) + "'" + : "unexpected token")); + } else { + return result; + } + } + + function error(msg, type) { + throw { index: i, type: type || 'Syntax', message: msg }; + } + + // Same as $(), but don't change the state of the parser, + // just return the match. + function peek(tok) { + if (typeof(tok) === 'string') { + return input.charAt(i) === tok; + } else { + if (tok.test(chunks[j])) { + return true; + } else { + return false; + } + } + } + + function basename(pathname) { + if (less.mode === 'node') { + return require('path').basename(pathname); + } else { + return pathname.match(/[^\/]+$/)[0]; + } + } + + function getInput(e, env) { + if (e.filename && env.filename && (e.filename !== env.filename)) { + return parser.imports.contents[basename(e.filename)]; + } else { + return input; + } + } + + function getLocation(index, input) { + for (var n = index, column = -1; + n >= 0 && input.charAt(n) !== '\n'; + n--) { column++ } + + return { line: typeof(index) === 'number' ? (input.slice(0, index).match(/\n/g) || "").length : null, + column: column }; + } + + function LessError(e, env) { + var input = getInput(e, env), + loc = getLocation(e.index, input), + line = loc.line, + col = loc.column, + lines = input.split('\n'); + + this.type = e.type || 'Syntax'; + this.message = e.message; + this.filename = e.filename || env.filename; + this.index = e.index; + this.line = typeof(line) === 'number' ? line + 1 : null; + this.callLine = e.call && (getLocation(e.call, input).line + 1); + this.callExtract = lines[getLocation(e.call, input).line]; + this.stack = e.stack; + this.column = col; + this.extract = [ + lines[line - 1], + lines[line], + lines[line + 1] + ]; + } + + this.env = env = env || {}; + + // The optimization level dictates the thoroughness of the parser, + // the lower the number, the less nodes it will create in the tree. + // This could matter for debugging, or if you want to access + // the individual nodes in the tree. + this.optimization = ('optimization' in this.env) ? this.env.optimization : 1; + + this.env.filename = this.env.filename || null; + + // + // The Parser + // + return parser = { + + imports: imports, + // + // Parse an input string into an abstract syntax tree, + // call `callback` when done. + // + parse: function (str, callback) { + var root, start, end, zone, line, lines, buff = [], c, error = null; + + i = j = current = furthest = 0; + input = str.replace(/\r\n/g, '\n'); + + // Split the input into chunks. + chunks = (function (chunks) { + var j = 0, + skip = /[^"'`\{\}\/\(\)\\]+/g, + comment = /\/\*(?:[^*]|\*+[^\/*])*\*+\/|\/\/.*/g, + string = /"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'|`((?:[^`\\\r\n]|\\.)*)`/g, + level = 0, + match, + chunk = chunks[0], + inParam; + + for (var i = 0, c, cc; i < input.length; i++) { + skip.lastIndex = i; + if (match = skip.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + } + } + c = input.charAt(i); + comment.lastIndex = string.lastIndex = i; + + if (match = string.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + + if (!inParam && c === '/') { + cc = input.charAt(i + 1); + if (cc === '/' || cc === '*') { + if (match = comment.exec(input)) { + if (match.index === i) { + i += match[0].length; + chunk.push(match[0]); + c = input.charAt(i); + } + } + } + } + + switch (c) { + case '{': if (! inParam) { level ++; chunk.push(c); break } + case '}': if (! inParam) { level --; chunk.push(c); chunks[++j] = chunk = []; break } + case '(': if (! inParam) { inParam = true; chunk.push(c); break } + case ')': if ( inParam) { inParam = false; chunk.push(c); break } + default: chunk.push(c); + } + } + if (level > 0) { + error = new(LessError)({ + index: i, + type: 'Parse', + message: "missing closing `}`", + filename: env.filename + }, env); + } + + return chunks.map(function (c) { return c.join('') });; + })([[]]); + + if (error) { + return callback(error); + } + + // Start with the primary rule. + // The whole syntax tree is held under a Ruleset node, + // with the `root` property set to true, so no `{}` are + // output. The callback is called when the input is parsed. + try { + root = new(tree.Ruleset)([], $(this.parsers.primary)); + root.root = true; + } catch (e) { + return callback(new(LessError)(e, env)); + } + + root.toCSS = (function (evaluate) { + var line, lines, column; + + return function (options, variables) { + var frames = [], importError; + + options = options || {}; + // + // Allows setting variables with a hash, so: + // + // `{ color: new(tree.Color)('#f01') }` will become: + // + // new(tree.Rule)('@color', + // new(tree.Value)([ + // new(tree.Expression)([ + // new(tree.Color)('#f01') + // ]) + // ]) + // ) + // + if (typeof(variables) === 'object' && !Array.isArray(variables)) { + variables = Object.keys(variables).map(function (k) { + var value = variables[k]; + + if (! (value instanceof tree.Value)) { + if (! (value instanceof tree.Expression)) { + value = new(tree.Expression)([value]); + } + value = new(tree.Value)([value]); + } + return new(tree.Rule)('@' + k, value, false, 0); + }); + frames = [new(tree.Ruleset)(null, variables)]; + } + + try { + var css = evaluate.call(this, { frames: frames }) + .toCSS([], { compress: options.compress || false }); + } catch (e) { + throw new(LessError)(e, env); + } + + if ((importError = parser.imports.error)) { // Check if there was an error during importing + if (importError instanceof LessError) throw importError; + else throw new(LessError)(importError, env); + } + + if (options.yuicompress && less.mode === 'node') { + return require('./cssmin').compressor.cssmin(css); + } else if (options.compress) { + return css.replace(/(\s)+/g, "$1"); + } else { + return css; + } + }; + })(root.eval); + + // If `i` is smaller than the `input.length - 1`, + // it means the parser wasn't able to parse the whole + // string, so we've got a parsing error. + // + // We try to extract a \n delimited string, + // showing the line where the parse error occured. + // We split it up into two parts (the part which parsed, + // and the part which didn't), so we can color them differently. + if (i < input.length - 1) { + i = furthest; + lines = input.split('\n'); + line = (input.slice(0, i).match(/\n/g) || "").length + 1; + + for (var n = i, column = -1; n >= 0 && input.charAt(n) !== '\n'; n--) { column++ } + + error = { + type: "Parse", + message: "Syntax Error on line " + line, + index: i, + filename: env.filename, + line: line, + column: column, + extract: [ + lines[line - 2], + lines[line - 1], + lines[line] + ] + }; + } + + if (this.imports.queue.length > 0) { + finish = function () { callback(error, root) }; + } else { + callback(error, root); + } + }, + + // + // Here in, the parsing rules/functions + // + // The basic structure of the syntax tree generated is as follows: + // + // Ruleset -> Rule -> Value -> Expression -> Entity + // + // Here's some LESS code: + // + // .class { + // color: #fff; + // border: 1px solid #000; + // width: @w + 4px; + // > .child {...} + // } + // + // And here's what the parse tree might look like: + // + // Ruleset (Selector '.class', [ + // Rule ("color", Value ([Expression [Color #fff]])) + // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]])) + // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]])) + // Ruleset (Selector [Element '>', '.child'], [...]) + // ]) + // + // In general, most rules will try to parse a token with the `$()` function, and if the return + // value is truly, will return a new node, of the relevant type. Sometimes, we need to check + // first, before parsing, that's when we use `peek()`. + // + parsers: { + // + // The `primary` rule is the *entry* and *exit* point of the parser. + // The rules here can appear at any level of the parse tree. + // + // The recursive nature of the grammar is an interplay between the `block` + // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule, + // as represented by this simplified grammar: + // + // primary → (ruleset | rule)+ + // ruleset → selector+ block + // block → '{' primary '}' + // + // Only at one point is the primary rule not called from the + // block rule: at the root level. + // + primary: function () { + var node, root = []; + + while ((node = $(this.mixin.definition) || $(this.rule) || $(this.ruleset) || + $(this.mixin.call) || $(this.comment) || $(this.directive)) + || $(/^[\s\n]+/)) { + node && root.push(node); + } + return root; + }, + + // We create a Comment node for CSS comments `/* */`, + // but keep the LeSS comments `//` silent, by just skipping + // over them. + comment: function () { + var comment; + + if (input.charAt(i) !== '/') return; + + if (input.charAt(i + 1) === '/') { + return new(tree.Comment)($(/^\/\/.*/), true); + } else if (comment = $(/^\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/)) { + return new(tree.Comment)(comment); + } + }, + + // + // Entities are tokens which can be found inside an Expression + // + entities: { + // + // A string, which supports escaping " and ' + // + // "milky way" 'he\'s the one!' + // + quoted: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '"' && input.charAt(j) !== "'") return; + + e && $('~'); + + if (str = $(/^"((?:[^"\\\r\n]|\\.)*)"|'((?:[^'\\\r\n]|\\.)*)'/)) { + return new(tree.Quoted)(str[0], str[1] || str[2], e); + } + }, + + // + // A catch-all word, such as: + // + // black border-collapse + // + keyword: function () { + var k; + + if (k = $(/^[_A-Za-z-][_A-Za-z0-9-]*/)) { + if (tree.colors.hasOwnProperty(k)) { + // detect named color + return new(tree.Color)(tree.colors[k].slice(1)); + } else { + return new(tree.Keyword)(k); + } + } + }, + + // + // A function call + // + // rgb(255, 0, 255) + // + // We also try to catch IE's `alpha()`, but let the `alpha` parser + // deal with the details. + // + // The arguments are parsed with the `entities.arguments` parser. + // + call: function () { + var name, args, index = i; + + if (! (name = /^([\w-]+|%|progid:[\w\.]+)\(/.exec(chunks[j]))) return; + + name = name[1].toLowerCase(); + + if (name === 'url') { return null } + else { i += name.length } + + if (name === 'alpha') { return $(this.alpha) } + + $('('); // Parse the '(' and consume whitespace. + + args = $(this.entities.arguments); + + if (! $(')')) return; + + if (name) { return new(tree.Call)(name, args, index, env.filename) } + }, + arguments: function () { + var args = [], arg; + + while (arg = $(this.entities.assignment) || $(this.expression)) { + args.push(arg); + if (! $(',')) { break } + } + return args; + }, + literal: function () { + return $(this.entities.dimension) || + $(this.entities.color) || + $(this.entities.quoted); + }, + + // Assignments are argument entities for calls. + // They are present in ie filter properties as shown below. + // + // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* ) + // + + assignment: function () { + var key, value; + if ((key = $(/^\w+(?=\s?=)/i)) && $('=') && (value = $(this.entity))) { + return new(tree.Assignment)(key, value); + } + }, + + // + // Parse url() tokens + // + // We use a specific rule for urls, because they don't really behave like + // standard function calls. The difference is that the argument doesn't have + // to be enclosed within a string, so it can't be parsed as an Expression. + // + url: function () { + var value; + + if (input.charAt(i) !== 'u' || !$(/^url\(/)) return; + value = $(this.entities.quoted) || $(this.entities.variable) || + $(this.entities.dataURI) || $(/^[-\w%@$\/.&=:;#+?~]+/) || ""; + + expect(')'); + + return new(tree.URL)((value.value || value.data || value instanceof tree.Variable) + ? value : new(tree.Anonymous)(value), imports.paths); + }, + + dataURI: function () { + var obj; + + if ($(/^data:/)) { + obj = {}; + obj.mime = $(/^[^\/]+\/[^,;)]+/) || ''; + obj.charset = $(/^;\s*charset=[^,;)]+/) || ''; + obj.base64 = $(/^;\s*base64/) || ''; + obj.data = $(/^,\s*[^)]+/); + + if (obj.data) { return obj } + } + }, + + // + // A Variable entity, such as `@fink`, in + // + // width: @fink + 2px + // + // We use a different parser for variable definitions, + // see `parsers.variable`. + // + variable: function () { + var name, index = i; + + if (input.charAt(i) === '@' && (name = $(/^@@?[\w-]+/))) { + return new(tree.Variable)(name, index, env.filename); + } + }, + + // + // A Hexadecimal color + // + // #4F3C2F + // + // `rgb` and `hsl` colors are parsed through the `entities.call` parser. + // + color: function () { + var rgb; + + if (input.charAt(i) === '#' && (rgb = $(/^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})/))) { + return new(tree.Color)(rgb[1]); + } + }, + + // + // A Dimension, that is, a number and a unit + // + // 0.5em 95% + // + dimension: function () { + var value, c = input.charCodeAt(i); + if ((c > 57 || c < 45) || c === 47) return; + + if (value = $(/^(-?\d*\.?\d+)(px|%|em|rem|pc|ex|in|deg|s|ms|pt|cm|mm|rad|grad|turn)?/)) { + return new(tree.Dimension)(value[1], value[2]); + } + }, + + // + // JavaScript code to be evaluated + // + // `window.location.href` + // + javascript: function () { + var str, j = i, e; + + if (input.charAt(j) === '~') { j++, e = true } // Escaped strings + if (input.charAt(j) !== '`') { return } + + e && $('~'); + + if (str = $(/^`([^`]*)`/)) { + return new(tree.JavaScript)(str[1], i, e); + } + } + }, + + // + // The variable part of a variable definition. Used in the `rule` parser + // + // @fink: + // + variable: function () { + var name; + + if (input.charAt(i) === '@' && (name = $(/^(@[\w-]+)\s*:/))) { return name[1] } + }, + + // + // A font size/line-height shorthand + // + // small/12px + // + // We need to peek first, or we'll match on keywords and dimensions + // + shorthand: function () { + var a, b; + + if (! peek(/^[@\w.%-]+\/[@\w.-]+/)) return; + + if ((a = $(this.entity)) && $('/') && (b = $(this.entity))) { + return new(tree.Shorthand)(a, b); + } + }, + + // + // Mixins + // + mixin: { + // + // A Mixin call, with an optional argument list + // + // #mixins > .square(#fff); + // .rounded(4px, black); + // .button; + // + // The `while` loop is there because mixins can be + // namespaced, but we only support the child and descendant + // selector for now. + // + call: function () { + var elements = [], e, c, args, index = i, s = input.charAt(i), important = false; + + if (s !== '.' && s !== '#') { return } + + while (e = $(/^[#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/)) { + elements.push(new(tree.Element)(c, e, i)); + c = $('>'); + } + $('(') && (args = $(this.entities.arguments)) && $(')'); + + if ($(this.important)) { + important = true; + } + + if (elements.length > 0 && ($(';') || peek('}'))) { + return new(tree.mixin.Call)(elements, args || [], index, env.filename, important); + } + }, + + // + // A Mixin definition, with a list of parameters + // + // .rounded (@radius: 2px, @color) { + // ... + // } + // + // Until we have a finer grained state-machine, we have to + // do a look-ahead, to make sure we don't have a mixin call. + // See the `rule` function for more information. + // + // We start by matching `.rounded (`, and then proceed on to + // the argument list, which has optional default values. + // We store the parameters in `params`, with a `value` key, + // if there is a value, such as in the case of `@radius`. + // + // Once we've got our params list, and a closing `)`, we parse + // the `{...}` block. + // + definition: function () { + var name, params = [], match, ruleset, param, value, cond, variadic = false; + if ((input.charAt(i) !== '.' && input.charAt(i) !== '#') || + peek(/^[^{]*(;|})/)) return; + + save(); + + if (match = $(/^([#.](?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+)\s*\(/)) { + name = match[1]; + + do { + if (input.charAt(i) === '.' && $(/^\.{3}/)) { + variadic = true; + break; + } else if (param = $(this.entities.variable) || $(this.entities.literal) + || $(this.entities.keyword)) { + // Variable + if (param instanceof tree.Variable) { + if ($(':')) { + value = expect(this.expression, 'expected expression'); + params.push({ name: param.name, value: value }); + } else if ($(/^\.{3}/)) { + params.push({ name: param.name, variadic: true }); + variadic = true; + break; + } else { + params.push({ name: param.name }); + } + } else { + params.push({ value: param }); + } + } else { + break; + } + } while ($(',')) + + expect(')'); + + if ($(/^when/)) { // Guard + cond = expect(this.conditions, 'expected condition'); + } + + ruleset = $(this.block); + + if (ruleset) { + return new(tree.mixin.Definition)(name, params, ruleset, cond, variadic); + } else { + restore(); + } + } + } + }, + + // + // Entities are the smallest recognized token, + // and can be found inside a rule's value. + // + entity: function () { + return $(this.entities.literal) || $(this.entities.variable) || $(this.entities.url) || + $(this.entities.call) || $(this.entities.keyword) || $(this.entities.javascript) || + $(this.comment); + }, + + // + // A Rule terminator. Note that we use `peek()` to check for '}', + // because the `block` rule will be expecting it, but we still need to make sure + // it's there, if ';' was ommitted. + // + end: function () { + return $(';') || peek('}'); + }, + + // + // IE's alpha function + // + // alpha(opacity=88) + // + alpha: function () { + var value; + + if (! $(/^\(opacity=/i)) return; + if (value = $(/^\d+/) || $(this.entities.variable)) { + expect(')'); + return new(tree.Alpha)(value); + } + }, + + // + // A Selector Element + // + // div + // + h1 + // #socks + // input[type="text"] + // + // Elements are the building blocks for Selectors, + // they are made out of a `Combinator` (see combinator rule), + // and an element name, such as a tag a class, or `*`. + // + element: function () { + var e, t, c, v; + + c = $(this.combinator); + e = $(/^(?:\d+\.\d+|\d+)%/) || $(/^(?:[.#]?|:*)(?:[\w-]|\\(?:[a-fA-F0-9]{1,6} ?|[^a-fA-F0-9]))+/) || + $('*') || $(this.attribute) || $(/^\([^)@]+\)/); + + if (! e) { + $('(') && (v = $(this.entities.variable)) && $(')') && (e = new(tree.Paren)(v)); + } + + if (e) { return new(tree.Element)(c, e, i) } + + if (c.value && c.value.charAt(0) === '&') { + return new(tree.Element)(c, null, i); + } + }, + + // + // Combinators combine elements together, in a Selector. + // + // Because our parser isn't white-space sensitive, special care + // has to be taken, when parsing the descendant combinator, ` `, + // as it's an empty space. We have to check the previous character + // in the input, to see if it's a ` ` character. More info on how + // we deal with this in *combinator.js*. + // + combinator: function () { + var match, c = input.charAt(i); + + if (c === '>' || c === '+' || c === '~') { + i++; + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(c); + } else if (c === '&') { + match = '&'; + i++; + if(input.charAt(i) === ' ') { + match = '& '; + } + while (input.charAt(i) === ' ') { i++ } + return new(tree.Combinator)(match); + } else if (input.charAt(i - 1) === ' ') { + return new(tree.Combinator)(" "); + } else { + return new(tree.Combinator)(null); + } + }, + + // + // A CSS Selector + // + // .class > div + h1 + // li a:hover + // + // Selectors are made out of one or more Elements, see above. + // + selector: function () { + var sel, e, elements = [], c, match; + + if ($('(')) { + sel = $(this.entity); + expect(')'); + return new(tree.Selector)([new(tree.Element)('', sel, i)]); + } + + while (e = $(this.element)) { + c = input.charAt(i); + elements.push(e) + if (c === '{' || c === '}' || c === ';' || c === ',') { break } + } + + if (elements.length > 0) { return new(tree.Selector)(elements) } + }, + tag: function () { + return $(/^[a-zA-Z][a-zA-Z-]*[0-9]?/) || $('*'); + }, + attribute: function () { + var attr = '', key, val, op; + + if (! $('[')) return; + + if (key = $(/^[a-zA-Z-]+/) || $(this.entities.quoted)) { + if ((op = $(/^[|~*$^]?=/)) && + (val = $(this.entities.quoted) || $(/^[\w-]+/))) { + attr = [key, op, val.toCSS ? val.toCSS() : val].join(''); + } else { attr = key } + } + + if (! $(']')) return; + + if (attr) { return "[" + attr + "]" } + }, + + // + // The `block` rule is used by `ruleset` and `mixin.definition`. + // It's a wrapper around the `primary` rule, with added `{}`. + // + block: function () { + var content; + + if ($('{') && (content = $(this.primary)) && $('}')) { + return content; + } + }, + + // + // div, .class, body > p {...} + // + ruleset: function () { + var selectors = [], s, rules, match; + save(); + + while (s = $(this.selector)) { + selectors.push(s); + $(this.comment); + if (! $(',')) { break } + $(this.comment); + } + + if (selectors.length > 0 && (rules = $(this.block))) { + return new(tree.Ruleset)(selectors, rules, env.strictImports); + } else { + // Backtrack + furthest = i; + restore(); + } + }, + rule: function () { + var name, value, c = input.charAt(i), important, match; + save(); + + if (c === '.' || c === '#' || c === '&') { return } + + if (name = $(this.variable) || $(this.property)) { + if ((name.charAt(0) != '@') && (match = /^([^@+\/'"*`(;{}-]*);/.exec(chunks[j]))) { + i += match[0].length - 1; + value = new(tree.Anonymous)(match[1]); + } else if (name === "font") { + value = $(this.font); + } else { + value = $(this.value); + } + important = $(this.important); + + if (value && $(this.end)) { + return new(tree.Rule)(name, value, important, memo); + } else { + furthest = i; + restore(); + } + } + }, + + // + // An @import directive + // + // @import "lib"; + // + // Depending on our environemnt, importing is done differently: + // In the browser, it's an XHR request, in Node, it would be a + // file-system operation. The function used for importing is + // stored in `import`, which we pass to the Import constructor. + // + "import": function () { + var path, features, index = i; + if ($(/^@import\s+/) && + (path = $(this.entities.quoted) || $(this.entities.url))) { + features = $(this.mediaFeatures); + if ($(';')) { + return new(tree.Import)(path, imports, features, index); + } + } + }, + + mediaFeature: function () { + var e, p, nodes = []; + + do { + if (e = $(this.entities.keyword)) { + nodes.push(e); + } else if ($('(')) { + p = $(this.property); + e = $(this.entity); + if ($(')')) { + if (p && e) { + nodes.push(new(tree.Paren)(new(tree.Rule)(p, e, null, i, true))); + } else if (e) { + nodes.push(new(tree.Paren)(e)); + } else { + return null; + } + } else { return null } + } + } while (e); + + if (nodes.length > 0) { + return new(tree.Expression)(nodes); + } + }, + + mediaFeatures: function () { + var e, features = []; + + do { + if (e = $(this.mediaFeature)) { + features.push(e); + if (! $(',')) { break } + } else if (e = $(this.entities.variable)) { + features.push(e); + if (! $(',')) { break } + } + } while (e); + + return features.length > 0 ? features : null; + }, + + media: function () { + var features, rules; + + if ($(/^@media/)) { + features = $(this.mediaFeatures); + + if (rules = $(this.block)) { + return new(tree.Media)(rules, features); + } + } + }, + + // + // A CSS Directive + // + // @charset "utf-8"; + // + directive: function () { + var name, value, rules, types, e, nodes; + + if (input.charAt(i) !== '@') return; + + if (value = $(this['import']) || $(this.media)) { + return value; + } else if (name = $(/^@page|@keyframes/) || $(/^@(?:-webkit-|-moz-|-o-|-ms-)[a-z0-9-]+/)) { + types = ($(/^[^{]+/) || '').trim(); + if (rules = $(this.block)) { + return new(tree.Directive)(name + " " + types, rules); + } + } else if (name = $(/^@[-a-z]+/)) { + if (name === '@font-face') { + if (rules = $(this.block)) { + return new(tree.Directive)(name, rules); + } + } else if ((value = $(this.entity)) && $(';')) { + return new(tree.Directive)(name, value); + } + } + }, + font: function () { + var value = [], expression = [], weight, shorthand, font, e; + + while (e = $(this.shorthand) || $(this.entity)) { + expression.push(e); + } + value.push(new(tree.Expression)(expression)); + + if ($(',')) { + while (e = $(this.expression)) { + value.push(e); + if (! $(',')) { break } + } + } + return new(tree.Value)(value); + }, + + // + // A Value is a comma-delimited list of Expressions + // + // font-family: Baskerville, Georgia, serif; + // + // In a Rule, a Value represents everything after the `:`, + // and before the `;`. + // + value: function () { + var e, expressions = [], important; + + while (e = $(this.expression)) { + expressions.push(e); + if (! $(',')) { break } + } + + if (expressions.length > 0) { + return new(tree.Value)(expressions); + } + }, + important: function () { + if (input.charAt(i) === '!') { + return $(/^! *important/); + } + }, + sub: function () { + var e; + + if ($('(') && (e = $(this.expression)) && $(')')) { + return e; + } + }, + multiplication: function () { + var m, a, op, operation; + if (m = $(this.operand)) { + while (!peek(/^\/\*/) && (op = ($('/') || $('*'))) && (a = $(this.operand))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + addition: function () { + var m, a, op, operation; + if (m = $(this.multiplication)) { + while ((op = $(/^[-+]\s+/) || (input.charAt(i - 1) != ' ' && ($('+') || $('-')))) && + (a = $(this.multiplication))) { + operation = new(tree.Operation)(op, [operation || m, a]); + } + return operation || m; + } + }, + conditions: function () { + var a, b, index = i, condition; + + if (a = $(this.condition)) { + while ($(',') && (b = $(this.condition))) { + condition = new(tree.Condition)('or', condition || a, b, index); + } + return condition || a; + } + }, + condition: function () { + var a, b, c, op, index = i, negate = false; + + if ($(/^not/)) { negate = true } + expect('('); + if (a = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { + if (op = $(/^(?:>=|=<|[<=>])/)) { + if (b = $(this.addition) || $(this.entities.keyword) || $(this.entities.quoted)) { + c = new(tree.Condition)(op, a, b, index, negate); + } else { + error('expected expression'); + } + } else { + c = new(tree.Condition)('=', a, new(tree.Keyword)('true'), index, negate); + } + expect(')'); + return $(/^and/) ? new(tree.Condition)('and', c, $(this.condition)) : c; + } + }, + + // + // An operand is anything that can be part of an operation, + // such as a Color, or a Variable + // + operand: function () { + var negate, p = input.charAt(i + 1); + + if (input.charAt(i) === '-' && (p === '@' || p === '(')) { negate = $('-') } + var o = $(this.sub) || $(this.entities.dimension) || + $(this.entities.color) || $(this.entities.variable) || + $(this.entities.call); + return negate ? new(tree.Operation)('*', [new(tree.Dimension)(-1), o]) + : o; + }, + + // + // Expressions either represent mathematical operations, + // or white-space delimited Entities. + // + // 1px solid black + // @var * 2 + // + expression: function () { + var e, delim, entities = [], d; + + while (e = $(this.addition) || $(this.entity)) { + entities.push(e); + } + if (entities.length > 0) { + return new(tree.Expression)(entities); + } + }, + property: function () { + var name; + + if (name = $(/^(\*?-?[-a-z_0-9]+)\s*:/)) { + return name[1]; + } + } + } + }; +}; + +if (less.mode === 'browser' || less.mode === 'rhino') { + // + // Used by `@import` directives + // + less.Parser.importer = function (path, paths, callback, env) { + if (!/^([a-z]+:)?\//.test(path) && paths.length > 0) { + path = paths[0] + path; + } + // We pass `true` as 3rd argument, to force the reload of the import. + // This is so we can get the syntax tree as opposed to just the CSS output, + // as we need this to evaluate the current stylesheet. + loadStyleSheet({ href: path, title: path, type: env.mime }, function (e) { + if (e && typeof(env.errback) === "function") { + env.errback.call(null, path, paths, callback, env); + } else { + callback.apply(null, arguments); + } + }, true); + }; +} + diff --git a/node_modules/less-brunch/node_modules/less/lib/less/rhino.js b/node_modules/less-brunch/node_modules/less/lib/less/rhino.js new file mode 100644 index 0000000..a2c5662 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/rhino.js @@ -0,0 +1,62 @@ +var name; + +function loadStyleSheet(sheet, callback, reload, remaining) { + var sheetName = name.slice(0, name.lastIndexOf('/') + 1) + sheet.href; + var input = readFile(sheetName); + var parser = new less.Parser({ + paths: [sheet.href.replace(/[\w\.-]+$/, '')] + }); + parser.parse(input, function (e, root) { + if (e) { + print("Error: " + e); + quit(1); + } + callback(root, sheet, { local: false, lastModified: 0, remaining: remaining }); + }); + + // callback({}, sheet, { local: true, remaining: remaining }); +} + +function writeFile(filename, content) { + var fstream = new java.io.FileWriter(filename); + var out = new java.io.BufferedWriter(fstream); + out.write(content); + out.close(); +} + +// Command line integration via Rhino +(function (args) { + name = args[0]; + var output = args[1]; + + if (!name) { + print('No files present in the fileset; Check your pattern match in build.xml'); + quit(1); + } + path = name.split("/");path.pop();path=path.join("/") + + var input = readFile(name); + + if (!input) { + print('lesscss: couldn\'t open file ' + name); + quit(1); + } + + var result; + var parser = new less.Parser(); + parser.parse(input, function (e, root) { + if (e) { + quit(1); + } else { + result = root.toCSS(); + if (output) { + writeFile(output, result); + print("Written to " + output); + } else { + print(result); + } + quit(0); + } + }); + print("done"); +}(arguments)); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree.js b/node_modules/less-brunch/node_modules/less/lib/less/tree.js new file mode 100644 index 0000000..24ecd71 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree.js @@ -0,0 +1,17 @@ +(function (tree) { + +tree.find = function (obj, fun) { + for (var i = 0, r; i < obj.length; i++) { + if (r = fun.call(obj, obj[i])) { return r } + } + return null; +}; +tree.jsify = function (obj) { + if (Array.isArray(obj.value) && (obj.value.length > 1)) { + return '[' + obj.value.map(function (v) { return v.toCSS(false) }).join(', ') + ']'; + } else { + return obj.toCSS(false); + } +}; + +})(require('./tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/alpha.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/alpha.js new file mode 100644 index 0000000..139ae92 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/alpha.js @@ -0,0 +1,17 @@ +(function (tree) { + +tree.Alpha = function (val) { + this.value = val; +}; +tree.Alpha.prototype = { + toCSS: function () { + return "alpha(opacity=" + + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/anonymous.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/anonymous.js new file mode 100644 index 0000000..460c9ec --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/anonymous.js @@ -0,0 +1,13 @@ +(function (tree) { + +tree.Anonymous = function (string) { + this.value = string.value || string; +}; +tree.Anonymous.prototype = { + toCSS: function () { + return this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/assignment.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/assignment.js new file mode 100644 index 0000000..70ce6e2 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/assignment.js @@ -0,0 +1,17 @@ +(function (tree) { + +tree.Assignment = function (key, val) { + this.key = key; + this.value = val; +}; +tree.Assignment.prototype = { + toCSS: function () { + return this.key + '=' + (this.value.toCSS ? this.value.toCSS() : this.value); + }, + eval: function (env) { + if (this.value.eval) { this.value = this.value.eval(env) } + return this; + } +}; + +})(require('../tree')); \ No newline at end of file diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/call.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/call.js new file mode 100644 index 0000000..c1465dd --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/call.js @@ -0,0 +1,48 @@ +(function (tree) { + +// +// A function call node. +// +tree.Call = function (name, args, index, filename) { + this.name = name; + this.args = args; + this.index = index; + this.filename = filename; +}; +tree.Call.prototype = { + // + // When evaluating a function call, + // we either find the function in `tree.functions` [1], + // in which case we call it, passing the evaluated arguments, + // or we simply print it out as it appeared originally [2]. + // + // The *functions.js* file contains the built-in functions. + // + // The reason why we evaluate the arguments, is in the case where + // we try to pass a variable to a function, like: `saturate(@color)`. + // The function should receive the value, not the variable. + // + eval: function (env) { + var args = this.args.map(function (a) { return a.eval(env) }); + + if (this.name in tree.functions) { // 1. + try { + return tree.functions[this.name].apply(tree.functions, args); + } catch (e) { + throw { type: e.type || "Runtime", + message: "error evaluating function `" + this.name + "`" + + (e.message ? ': ' + e.message : ''), + index: this.index, filename: this.filename }; + } + } else { // 2. + return new(tree.Anonymous)(this.name + + "(" + args.map(function (a) { return a.toCSS() }).join(', ') + ")"); + } + }, + + toCSS: function (env) { + return this.eval(env).toCSS(); + } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/color.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/color.js new file mode 100644 index 0000000..37ce178 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/color.js @@ -0,0 +1,101 @@ +(function (tree) { +// +// RGB Colors - #ff0014, #eee +// +tree.Color = function (rgb, a) { + // + // The end goal here, is to parse the arguments + // into an integer triplet, such as `128, 255, 0` + // + // This facilitates operations and conversions. + // + if (Array.isArray(rgb)) { + this.rgb = rgb; + } else if (rgb.length == 6) { + this.rgb = rgb.match(/.{2}/g).map(function (c) { + return parseInt(c, 16); + }); + } else { + this.rgb = rgb.split('').map(function (c) { + return parseInt(c + c, 16); + }); + } + this.alpha = typeof(a) === 'number' ? a : 1; +}; +tree.Color.prototype = { + eval: function () { return this }, + + // + // If we have some transparency, the only way to represent it + // is via `rgba`. Otherwise, we use the hex representation, + // which has better compatibility with older browsers. + // Values are capped between `0` and `255`, rounded and zero-padded. + // + toCSS: function () { + if (this.alpha < 1.0) { + return "rgba(" + this.rgb.map(function (c) { + return Math.round(c); + }).concat(this.alpha).join(', ') + ")"; + } else { + return '#' + this.rgb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } + }, + + // + // Operations have to be done per-channel, if not, + // channels will spill onto each other. Once we have + // our result, in the form of an integer triplet, + // we create a new Color node to hold the result. + // + operate: function (op, other) { + var result = []; + + if (! (other instanceof tree.Color)) { + other = other.toColor(); + } + + for (var c = 0; c < 3; c++) { + result[c] = tree.operate(op, this.rgb[c], other.rgb[c]); + } + return new(tree.Color)(result, this.alpha + other.alpha); + }, + + toHSL: function () { + var r = this.rgb[0] / 255, + g = this.rgb[1] / 255, + b = this.rgb[2] / 255, + a = this.alpha; + + var max = Math.max(r, g, b), min = Math.min(r, g, b); + var h, s, l = (max + min) / 2, d = max - min; + + if (max === min) { + h = s = 0; + } else { + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + + switch (max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h * 360, s: s, l: l, a: a }; + }, + toARGB: function () { + var argb = [Math.round(this.alpha * 255)].concat(this.rgb); + return '#' + argb.map(function (i) { + i = Math.round(i); + i = (i > 255 ? 255 : (i < 0 ? 0 : i)).toString(16); + return i.length === 1 ? '0' + i : i; + }).join(''); + } +}; + + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/comment.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/comment.js new file mode 100644 index 0000000..f4a3384 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/comment.js @@ -0,0 +1,14 @@ +(function (tree) { + +tree.Comment = function (value, silent) { + this.value = value; + this.silent = !!silent; +}; +tree.Comment.prototype = { + toCSS: function (env) { + return env.compress ? '' : this.value; + }, + eval: function () { return this } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/condition.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/condition.js new file mode 100644 index 0000000..6b79dc9 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/condition.js @@ -0,0 +1,42 @@ +(function (tree) { + +tree.Condition = function (op, l, r, i, negate) { + this.op = op.trim(); + this.lvalue = l; + this.rvalue = r; + this.index = i; + this.negate = negate; +}; +tree.Condition.prototype.eval = function (env) { + var a = this.lvalue.eval(env), + b = this.rvalue.eval(env); + + var i = this.index, result; + + var result = (function (op) { + switch (op) { + case 'and': + return a && b; + case 'or': + return a || b; + default: + if (a.compare) { + result = a.compare(b); + } else if (b.compare) { + result = b.compare(a); + } else { + throw { type: "Type", + message: "Unable to perform comparison", + index: i }; + } + switch (result) { + case -1: return op === '<' || op === '=<'; + case 0: return op === '=' || op === '>=' || op === '=<'; + case 1: return op === '>' || op === '>='; + } + } + })(this.op); + return this.negate ? !result : result; +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/dimension.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/dimension.js new file mode 100644 index 0000000..9a6fce3 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/dimension.js @@ -0,0 +1,49 @@ +(function (tree) { + +// +// A number with a unit +// +tree.Dimension = function (value, unit) { + this.value = parseFloat(value); + this.unit = unit || null; +}; + +tree.Dimension.prototype = { + eval: function () { return this }, + toColor: function () { + return new(tree.Color)([this.value, this.value, this.value]); + }, + toCSS: function () { + var css = this.value + this.unit; + return css; + }, + + // In an operation between two Dimensions, + // we default to the first Dimension's unit, + // so `1px + 2em` will yield `3px`. + // In the future, we could implement some unit + // conversions such that `100cm + 10mm` would yield + // `101cm`. + operate: function (op, other) { + return new(tree.Dimension) + (tree.operate(op, this.value, other.value), + this.unit || other.unit); + }, + + // TODO: Perform unit conversion before comparing + compare: function (other) { + if (other instanceof tree.Dimension) { + if (other.value > this.value) { + return -1; + } else if (other.value < this.value) { + return 1; + } else { + return 0; + } + } else { + return -1; + } + } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/directive.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/directive.js new file mode 100644 index 0000000..2753833 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/directive.js @@ -0,0 +1,35 @@ +(function (tree) { + +tree.Directive = function (name, value, features) { + this.name = name; + + if (Array.isArray(value)) { + this.ruleset = new(tree.Ruleset)([], value); + this.ruleset.allowImports = true; + } else { + this.value = value; + } +}; +tree.Directive.prototype = { + toCSS: function (ctx, env) { + if (this.ruleset) { + this.ruleset.root = true; + return this.name + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + } else { + return this.name + ' ' + this.value.toCSS() + ';\n'; + } + }, + eval: function (env) { + env.frames.unshift(this); + this.ruleset = this.ruleset && this.ruleset.eval(env); + env.frames.shift(); + return this; + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/element.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/element.js new file mode 100644 index 0000000..4736857 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/element.js @@ -0,0 +1,47 @@ +(function (tree) { + +tree.Element = function (combinator, value, index) { + this.combinator = combinator instanceof tree.Combinator ? + combinator : new(tree.Combinator)(combinator); + + if (typeof(value) === 'string') { + this.value = value.trim(); + } else if (value) { + this.value = value; + } else { + this.value = ""; + } + this.index = index; +}; +tree.Element.prototype.eval = function (env) { + return new(tree.Element)(this.combinator, + this.value.eval ? this.value.eval(env) : this.value, + this.index); +}; +tree.Element.prototype.toCSS = function (env) { + return this.combinator.toCSS(env || {}) + (this.value.toCSS ? this.value.toCSS(env) : this.value); +}; + +tree.Combinator = function (value) { + if (value === ' ') { + this.value = ' '; + } else if (value === '& ') { + this.value = '& '; + } else { + this.value = value ? value.trim() : ""; + } +}; +tree.Combinator.prototype.toCSS = function (env) { + return { + '' : '', + ' ' : ' ', + '&' : '', + '& ' : ' ', + ':' : ' :', + '+' : env.compress ? '+' : ' + ', + '~' : env.compress ? '~' : ' ~ ', + '>' : env.compress ? '>' : ' > ' + }[this.value]; +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/expression.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/expression.js new file mode 100644 index 0000000..fbfa9c5 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/expression.js @@ -0,0 +1,23 @@ +(function (tree) { + +tree.Expression = function (value) { this.value = value }; +tree.Expression.prototype = { + eval: function (env) { + if (this.value.length > 1) { + return new(tree.Expression)(this.value.map(function (e) { + return e.eval(env); + })); + } else if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return this; + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS ? e.toCSS(env) : ''; + }).join(' '); + } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/import.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/import.js new file mode 100644 index 0000000..c3b0b00 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/import.js @@ -0,0 +1,79 @@ +(function (tree) { +// +// CSS @import node +// +// The general strategy here is that we don't want to wait +// for the parsing to be completed, before we start importing +// the file. That's because in the context of a browser, +// most of the time will be spent waiting for the server to respond. +// +// On creation, we push the import path to our import queue, though +// `import,push`, we also pass it a callback, which it'll call once +// the file has been fetched, and parsed. +// +tree.Import = function (path, imports, features, index) { + var that = this; + + this.index = index; + this._path = path; + this.features = features && new(tree.Value)(features); + + // The '.less' extension is optional + if (path instanceof tree.Quoted) { + this.path = /\.(le?|c)ss(\?.*)?$/.test(path.value) ? path.value : path.value + '.less'; + } else { + this.path = path.value.value || path.value; + } + + this.css = /css(\?.*)?$/.test(this.path); + + // Only pre-compile .less files + if (! this.css) { + imports.push(this.path, function (e, root) { + if (e) { e.index = index } + that.root = root || new(tree.Ruleset)([], []); + }); + } +}; + +// +// The actual import node doesn't return anything, when converted to CSS. +// The reason is that it's used at the evaluation stage, so that the rules +// it imports can be treated like any other rules. +// +// In `eval`, we make sure all Import nodes get evaluated, recursively, so +// we end up with a flat structure, which can easily be imported in the parent +// ruleset. +// +tree.Import.prototype = { + toCSS: function (env) { + var features = this.features ? ' ' + this.features.toCSS(env) : ''; + + if (this.css) { + return "@import " + this._path.toCSS() + features + ';\n'; + } else { + return ""; + } + }, + eval: function (env) { + var ruleset, features = this.features && this.features.eval(env); + + if (this.css) { + return this; + } else { + ruleset = new(tree.Ruleset)([], this.root.rules.slice(0)); + + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype + .splice + .apply(ruleset.rules, + [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + return this.features ? new(tree.Media)(ruleset.rules, this.features.value) : ruleset.rules; + } + } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/javascript.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/javascript.js new file mode 100644 index 0000000..772a31d --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/javascript.js @@ -0,0 +1,51 @@ +(function (tree) { + +tree.JavaScript = function (string, index, escaped) { + this.escaped = escaped; + this.expression = string; + this.index = index; +}; +tree.JavaScript.prototype = { + eval: function (env) { + var result, + that = this, + context = {}; + + var expression = this.expression.replace(/@\{([\w-]+)\}/g, function (_, name) { + return tree.jsify(new(tree.Variable)('@' + name, that.index).eval(env)); + }); + + try { + expression = new(Function)('return (' + expression + ')'); + } catch (e) { + throw { message: "JavaScript evaluation error: `" + expression + "`" , + index: this.index }; + } + + for (var k in env.frames[0].variables()) { + context[k.slice(1)] = { + value: env.frames[0].variables()[k].value, + toJS: function () { + return this.value.eval(env).toCSS(); + } + }; + } + + try { + result = expression.call(context); + } catch (e) { + throw { message: "JavaScript evaluation error: '" + e.name + ': ' + e.message + "'" , + index: this.index }; + } + if (typeof(result) === 'string') { + return new(tree.Quoted)('"' + result + '"', result, this.escaped, this.index); + } else if (Array.isArray(result)) { + return new(tree.Anonymous)(result.join(', ')); + } else { + return new(tree.Anonymous)(result); + } + } +}; + +})(require('../tree')); + diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/keyword.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/keyword.js new file mode 100644 index 0000000..701b79e --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/keyword.js @@ -0,0 +1,19 @@ +(function (tree) { + +tree.Keyword = function (value) { this.value = value }; +tree.Keyword.prototype = { + eval: function () { return this }, + toCSS: function () { return this.value }, + compare: function (other) { + if (other instanceof tree.Keyword) { + return other.value === this.value ? 0 : 1; + } else { + return -1; + } + } +}; + +tree.True = new(tree.Keyword)('true'); +tree.False = new(tree.Keyword)('false'); + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/media.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/media.js new file mode 100644 index 0000000..2b7b26e --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/media.js @@ -0,0 +1,114 @@ +(function (tree) { + +tree.Media = function (value, features) { + var el = new(tree.Element)('&', null, 0), + selectors = [new(tree.Selector)([el])]; + + this.features = new(tree.Value)(features); + this.ruleset = new(tree.Ruleset)(selectors, value); + this.ruleset.allowImports = true; +}; +tree.Media.prototype = { + toCSS: function (ctx, env) { + var features = this.features.toCSS(env); + + this.ruleset.root = (ctx.length === 0 || ctx[0].multiMedia); + return '@media ' + features + (env.compress ? '{' : ' {\n ') + + this.ruleset.toCSS(ctx, env).trim().replace(/\n/g, '\n ') + + (env.compress ? '}': '\n}\n'); + }, + eval: function (env) { + if (!env.mediaBlocks) { + env.mediaBlocks = []; + env.mediaPath = []; + } + + var blockIndex = env.mediaBlocks.length; + env.mediaPath.push(this); + env.mediaBlocks.push(this); + + var media = new(tree.Media)([], []); + media.features = this.features.eval(env); + + env.frames.unshift(this.ruleset); + media.ruleset = this.ruleset.eval(env); + env.frames.shift(); + + env.mediaBlocks[blockIndex] = media; + env.mediaPath.pop(); + + return env.mediaPath.length === 0 ? media.evalTop(env) : + media.evalNested(env) + }, + variable: function (name) { return tree.Ruleset.prototype.variable.call(this.ruleset, name) }, + find: function () { return tree.Ruleset.prototype.find.apply(this.ruleset, arguments) }, + rulesets: function () { return tree.Ruleset.prototype.rulesets.apply(this.ruleset) }, + + evalTop: function (env) { + var result = this; + + // Render all dependent Media blocks. + if (env.mediaBlocks.length > 1) { + var el = new(tree.Element)('&', null, 0); + var selectors = [new(tree.Selector)([el])]; + result = new(tree.Ruleset)(selectors, env.mediaBlocks); + result.multiMedia = true; + } + + delete env.mediaBlocks; + delete env.mediaPath; + + return result; + }, + evalNested: function (env) { + var i, value, + path = env.mediaPath.concat([this]); + + // Extract the media-query conditions separated with `,` (OR). + for (i = 0; i < path.length; i++) { + value = path[i].features instanceof tree.Value ? + path[i].features.value : path[i].features; + path[i] = Array.isArray(value) ? value : [value]; + } + + // Trace all permutations to generate the resulting media-query. + // + // (a, b and c) with nested (d, e) -> + // a and d + // a and e + // b and c and d + // b and c and e + this.features = new(tree.Value)(this.permute(path).map(function (path) { + path = path.map(function (fragment) { + return fragment.toCSS ? fragment : new(tree.Anonymous)(fragment); + }); + + for(i = path.length - 1; i > 0; i--) { + path.splice(i, 0, new(tree.Anonymous)("and")); + } + + return new(tree.Expression)(path); + })); + + // Fake a tree-node that doesn't output anything. + return new(tree.Ruleset)([], []); + }, + permute: function (arr) { + if (arr.length === 0) { + return []; + } else if (arr.length === 1) { + return arr[0]; + } else { + var result = []; + var rest = this.permute(arr.slice(1)); + for (var i = 0; i < rest.length; i++) { + for (var j = 0; j < arr[0].length; j++) { + result.push([arr[0][j]].concat(rest[i])); + } + } + return result; + } + } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/mixin.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/mixin.js new file mode 100644 index 0000000..4464bc6 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/mixin.js @@ -0,0 +1,135 @@ +(function (tree) { + +tree.mixin = {}; +tree.mixin.Call = function (elements, args, index, filename, important) { + this.selector = new(tree.Selector)(elements); + this.arguments = args; + this.index = index; + this.filename = filename; + this.important = important; +}; +tree.mixin.Call.prototype = { + eval: function (env) { + var mixins, args, rules = [], match = false; + + for (var i = 0; i < env.frames.length; i++) { + if ((mixins = env.frames[i].find(this.selector)).length > 0) { + args = this.arguments && this.arguments.map(function (a) { return a.eval(env) }); + for (var m = 0; m < mixins.length; m++) { + if (mixins[m].match(args, env)) { + try { + Array.prototype.push.apply( + rules, mixins[m].eval(env, this.arguments, this.important).rules); + match = true; + } catch (e) { + throw { message: e.message, index: this.index, filename: this.filename, stack: e.stack }; + } + } + } + if (match) { + return rules; + } else { + throw { type: 'Runtime', + message: 'No matching definition was found for `' + + this.selector.toCSS().trim() + '(' + + this.arguments.map(function (a) { + return a.toCSS(); + }).join(', ') + ")`", + index: this.index, filename: this.filename }; + } + } + } + throw { type: 'Name', + message: this.selector.toCSS().trim() + " is undefined", + index: this.index, filename: this.filename }; + } +}; + +tree.mixin.Definition = function (name, params, rules, condition, variadic) { + this.name = name; + this.selectors = [new(tree.Selector)([new(tree.Element)(null, name)])]; + this.params = params; + this.condition = condition; + this.variadic = variadic; + this.arity = params.length; + this.rules = rules; + this._lookups = {}; + this.required = params.reduce(function (count, p) { + if (!p.name || (p.name && !p.value)) { return count + 1 } + else { return count } + }, 0); + this.parent = tree.Ruleset.prototype; + this.frames = []; +}; +tree.mixin.Definition.prototype = { + toCSS: function () { return "" }, + variable: function (name) { return this.parent.variable.call(this, name) }, + variables: function () { return this.parent.variables.call(this) }, + find: function () { return this.parent.find.apply(this, arguments) }, + rulesets: function () { return this.parent.rulesets.apply(this) }, + + evalParams: function (env, args) { + var frame = new(tree.Ruleset)(null, []), varargs; + + for (var i = 0, val, name; i < this.params.length; i++) { + if (name = this.params[i].name) { + if (this.params[i].variadic && args) { + varargs = []; + for (var j = i; j < args.length; j++) { + varargs.push(args[j].eval(env)); + } + frame.rules.unshift(new(tree.Rule)(name, new(tree.Expression)(varargs).eval(env))); + } else if (val = (args && args[i]) || this.params[i].value) { + frame.rules.unshift(new(tree.Rule)(name, val.eval(env))); + } else { + throw { type: 'Runtime', message: "wrong number of arguments for " + this.name + + ' (' + args.length + ' for ' + this.arity + ')' }; + } + } + } + return frame; + }, + eval: function (env, args, important) { + var frame = this.evalParams(env, args), context, _arguments = [], rules, start; + + for (var i = 0; i < Math.max(this.params.length, args && args.length); i++) { + _arguments.push(args[i] || this.params[i].value); + } + frame.rules.unshift(new(tree.Rule)('@arguments', new(tree.Expression)(_arguments).eval(env))); + + rules = important ? + this.rules.map(function (r) { + return new(tree.Rule)(r.name, r.value, '!important', r.index); + }) : this.rules.slice(0); + + return new(tree.Ruleset)(null, rules).eval({ + frames: [this, frame].concat(this.frames, env.frames) + }); + }, + match: function (args, env) { + var argsLength = (args && args.length) || 0, len, frame; + + if (! this.variadic) { + if (argsLength < this.required) { return false } + if (argsLength > this.params.length) { return false } + if ((this.required > 0) && (argsLength > this.params.length)) { return false } + } + + if (this.condition && !this.condition.eval({ + frames: [this.evalParams(env, args)].concat(env.frames) + })) { return false } + + len = Math.min(argsLength, this.arity); + + for (var i = 0; i < len; i++) { + if (!this.params[i].name) { + if (args[i].eval(env).toCSS() != this.params[i].value.eval(env).toCSS()) { + return false; + } + } + } + return true; + } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/operation.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/operation.js new file mode 100644 index 0000000..1ce22fb --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/operation.js @@ -0,0 +1,32 @@ +(function (tree) { + +tree.Operation = function (op, operands) { + this.op = op.trim(); + this.operands = operands; +}; +tree.Operation.prototype.eval = function (env) { + var a = this.operands[0].eval(env), + b = this.operands[1].eval(env), + temp; + + if (a instanceof tree.Dimension && b instanceof tree.Color) { + if (this.op === '*' || this.op === '+') { + temp = b, b = a, a = temp; + } else { + throw { name: "OperationError", + message: "Can't substract or divide a color from a number" }; + } + } + return a.operate(this.op, b); +}; + +tree.operate = function (op, a, b) { + switch (op) { + case '+': return a + b; + case '-': return a - b; + case '*': return a * b; + case '/': return a / b; + } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/paren.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/paren.js new file mode 100644 index 0000000..384a43c --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/paren.js @@ -0,0 +1,16 @@ + +(function (tree) { + +tree.Paren = function (node) { + this.value = node; +}; +tree.Paren.prototype = { + toCSS: function (env) { + return '(' + this.value.toCSS(env) + ')'; + }, + eval: function (env) { + return new(tree.Paren)(this.value.eval(env)); + } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/quoted.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/quoted.js new file mode 100644 index 0000000..794bf4c --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/quoted.js @@ -0,0 +1,29 @@ +(function (tree) { + +tree.Quoted = function (str, content, escaped, i) { + this.escaped = escaped; + this.value = content || ''; + this.quote = str.charAt(0); + this.index = i; +}; +tree.Quoted.prototype = { + toCSS: function () { + if (this.escaped) { + return this.value; + } else { + return this.quote + this.value + this.quote; + } + }, + eval: function (env) { + var that = this; + var value = this.value.replace(/`([^`]+)`/g, function (_, exp) { + return new(tree.JavaScript)(exp, that.index, true).eval(env).value; + }).replace(/@\{([\w-]+)\}/g, function (_, name) { + var v = new(tree.Variable)('@' + name, that.index).eval(env); + return ('value' in v) ? v.value : v.toCSS(); + }); + return new(tree.Quoted)(this.quote + value + this.quote, value, this.escaped, this.index); + } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/rule.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/rule.js new file mode 100644 index 0000000..9e4e54a --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/rule.js @@ -0,0 +1,42 @@ +(function (tree) { + +tree.Rule = function (name, value, important, index, inline) { + this.name = name; + this.value = (value instanceof tree.Value) ? value : new(tree.Value)([value]); + this.important = important ? ' ' + important.trim() : ''; + this.index = index; + this.inline = inline || false; + + if (name.charAt(0) === '@') { + this.variable = true; + } else { this.variable = false } +}; +tree.Rule.prototype.toCSS = function (env) { + if (this.variable) { return "" } + else { + return this.name + (env.compress ? ':' : ': ') + + this.value.toCSS(env) + + this.important + (this.inline ? "" : ";"); + } +}; + +tree.Rule.prototype.eval = function (context) { + return new(tree.Rule)(this.name, + this.value.eval(context), + this.important, + this.index, this.inline); +}; + +tree.Shorthand = function (a, b) { + this.a = a; + this.b = b; +}; + +tree.Shorthand.prototype = { + toCSS: function (env) { + return this.a.toCSS(env) + "/" + this.b.toCSS(env); + }, + eval: function () { return this } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/ruleset.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/ruleset.js new file mode 100644 index 0000000..7d6283e --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/ruleset.js @@ -0,0 +1,216 @@ +(function (tree) { + +tree.Ruleset = function (selectors, rules, strictImports) { + this.selectors = selectors; + this.rules = rules; + this._lookups = {}; + this.strictImports = strictImports; +}; +tree.Ruleset.prototype = { + eval: function (env) { + var selectors = this.selectors && this.selectors.map(function (s) { return s.eval(env) }); + var ruleset = new(tree.Ruleset)(selectors, this.rules.slice(0), this.strictImports); + + ruleset.root = this.root; + ruleset.allowImports = this.allowImports; + + // push the current ruleset to the frames stack + env.frames.unshift(ruleset); + + // Evaluate imports + if (ruleset.root || ruleset.allowImports || !ruleset.strictImports) { + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.Import) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + } + + // Store the frames around mixin definitions, + // so they can be evaluated like closures when the time comes. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Definition) { + ruleset.rules[i].frames = env.frames.slice(0); + } + } + + // Evaluate mixin calls. + for (var i = 0; i < ruleset.rules.length; i++) { + if (ruleset.rules[i] instanceof tree.mixin.Call) { + Array.prototype.splice + .apply(ruleset.rules, [i, 1].concat(ruleset.rules[i].eval(env))); + } + } + + // Evaluate everything else + for (var i = 0, rule; i < ruleset.rules.length; i++) { + rule = ruleset.rules[i]; + + if (! (rule instanceof tree.mixin.Definition)) { + ruleset.rules[i] = rule.eval ? rule.eval(env) : rule; + } + } + + // Pop the stack + env.frames.shift(); + + return ruleset; + }, + match: function (args) { + return !args || args.length === 0; + }, + variables: function () { + if (this._variables) { return this._variables } + else { + return this._variables = this.rules.reduce(function (hash, r) { + if (r instanceof tree.Rule && r.variable === true) { + hash[r.name] = r; + } + return hash; + }, {}); + } + }, + variable: function (name) { + return this.variables()[name]; + }, + rulesets: function () { + if (this._rulesets) { return this._rulesets } + else { + return this._rulesets = this.rules.filter(function (r) { + return (r instanceof tree.Ruleset) || (r instanceof tree.mixin.Definition); + }); + } + }, + find: function (selector, self) { + self = self || this; + var rules = [], rule, match, + key = selector.toCSS(); + + if (key in this._lookups) { return this._lookups[key] } + + this.rulesets().forEach(function (rule) { + if (rule !== self) { + for (var j = 0; j < rule.selectors.length; j++) { + if (match = selector.match(rule.selectors[j])) { + if (selector.elements.length > rule.selectors[j].elements.length) { + Array.prototype.push.apply(rules, rule.find( + new(tree.Selector)(selector.elements.slice(1)), self)); + } else { + rules.push(rule); + } + break; + } + } + } + }); + return this._lookups[key] = rules; + }, + // + // Entry point for code generation + // + // `context` holds an array of arrays. + // + toCSS: function (context, env) { + var css = [], // The CSS output + rules = [], // node.Rule instances + rulesets = [], // node.Ruleset instances + paths = [], // Current selectors + selector, // The fully rendered selector + rule; + + if (! this.root) { + if (context.length === 0) { + paths = this.selectors.map(function (s) { return [s] }); + } else { + this.joinSelectors(paths, context, this.selectors); + } + } + + // Compile rules and rulesets + for (var i = 0; i < this.rules.length; i++) { + rule = this.rules[i]; + + if (rule.rules || (rule instanceof tree.Directive) || (rule instanceof tree.Media)) { + rulesets.push(rule.toCSS(paths, env)); + } else if (rule instanceof tree.Comment) { + if (!rule.silent) { + if (this.root) { + rulesets.push(rule.toCSS(env)); + } else { + rules.push(rule.toCSS(env)); + } + } + } else { + if (rule.toCSS && !rule.variable) { + rules.push(rule.toCSS(env)); + } else if (rule.value && !rule.variable) { + rules.push(rule.value.toString()); + } + } + } + + rulesets = rulesets.join(''); + + // If this is the root node, we don't render + // a selector, or {}. + // Otherwise, only output if this ruleset has rules. + if (this.root) { + css.push(rules.join(env.compress ? '' : '\n')); + } else { + if (rules.length > 0) { + selector = paths.map(function (p) { + return p.map(function (s) { + return s.toCSS(env); + }).join('').trim(); + }).join( env.compress ? ',' : ',\n'); + + css.push(selector, + (env.compress ? '{' : ' {\n ') + + rules.join(env.compress ? '' : '\n ') + + (env.compress ? '}' : '\n}\n')); + } + } + css.push(rulesets); + + return css.join('') + (env.compress ? '\n' : ''); + }, + + joinSelectors: function (paths, context, selectors) { + for (var s = 0; s < selectors.length; s++) { + this.joinSelector(paths, context, selectors[s]); + } + }, + + joinSelector: function (paths, context, selector) { + var before = [], after = [], beforeElements = [], + afterElements = [], hasParentSelector = false, el; + + for (var i = 0; i < selector.elements.length; i++) { + el = selector.elements[i]; + if (el.combinator.value.charAt(0) === '&') { + hasParentSelector = true; + } + if (hasParentSelector) afterElements.push(el); + else beforeElements.push(el); + } + + if (! hasParentSelector) { + afterElements = beforeElements; + beforeElements = []; + } + + if (beforeElements.length > 0) { + before.push(new(tree.Selector)(beforeElements)); + } + + if (afterElements.length > 0) { + after.push(new(tree.Selector)(afterElements)); + } + + for (var c = 0; c < context.length; c++) { + paths.push(before.concat(context[c]).concat(after)); + } + } +}; +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/selector.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/selector.js new file mode 100644 index 0000000..65abbb6 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/selector.js @@ -0,0 +1,42 @@ +(function (tree) { + +tree.Selector = function (elements) { + this.elements = elements; + if (this.elements[0].combinator.value === "") { + this.elements[0].combinator.value = ' '; + } +}; +tree.Selector.prototype.match = function (other) { + var len = this.elements.length, + olen = other.elements.length, + max = Math.min(len, olen); + + if (len < olen) { + return false; + } else { + for (var i = 0; i < max; i++) { + if (this.elements[i].value !== other.elements[i].value) { + return false; + } + } + } + return true; +}; +tree.Selector.prototype.eval = function (env) { + return new(tree.Selector)(this.elements.map(function (e) { + return e.eval(env); + })); +}; +tree.Selector.prototype.toCSS = function (env) { + if (this._css) { return this._css } + + return this._css = this.elements.map(function (e) { + if (typeof(e) === 'string') { + return ' ' + e.trim(); + } else { + return e.toCSS(env); + } + }).join(''); +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/url.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/url.js new file mode 100644 index 0000000..0caec34 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/url.js @@ -0,0 +1,25 @@ +(function (tree) { + +tree.URL = function (val, paths) { + if (val.data) { + this.attrs = val; + } else { + // Add the base path if the URL is relative and we are in the browser + if (typeof(window) !== 'undefined' && !/^(?:https?:\/\/|file:\/\/|data:|\/)/.test(val.value) && paths.length > 0) { + val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value); + } + this.value = val; + this.paths = paths; + } +}; +tree.URL.prototype = { + toCSS: function () { + return "url(" + (this.attrs ? 'data:' + this.attrs.mime + this.attrs.charset + this.attrs.base64 + this.attrs.data + : this.value.toCSS()) + ")"; + }, + eval: function (ctx) { + return this.attrs ? this : new(tree.URL)(this.value.eval(ctx), this.paths); + } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/value.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/value.js new file mode 100644 index 0000000..3c1eb29 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/value.js @@ -0,0 +1,24 @@ +(function (tree) { + +tree.Value = function (value) { + this.value = value; + this.is = 'value'; +}; +tree.Value.prototype = { + eval: function (env) { + if (this.value.length === 1) { + return this.value[0].eval(env); + } else { + return new(tree.Value)(this.value.map(function (v) { + return v.eval(env); + })); + } + }, + toCSS: function (env) { + return this.value.map(function (e) { + return e.toCSS(env); + }).join(env.compress ? ',' : ', '); + } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/lib/less/tree/variable.js b/node_modules/less-brunch/node_modules/less/lib/less/tree/variable.js new file mode 100644 index 0000000..ee557e1 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/lib/less/tree/variable.js @@ -0,0 +1,26 @@ +(function (tree) { + +tree.Variable = function (name, index, file) { this.name = name, this.index = index, this.file = file }; +tree.Variable.prototype = { + eval: function (env) { + var variable, v, name = this.name; + + if (name.indexOf('@@') == 0) { + name = '@' + new(tree.Variable)(name.slice(1)).eval(env).value; + } + + if (variable = tree.find(env.frames, function (frame) { + if (v = frame.variable(name)) { + return v.value.eval(env); + } + })) { return variable } + else { + throw { type: 'Name', + message: "variable " + name + " is undefined", + filename: this.file, + index: this.index }; + } + } +}; + +})(require('../tree')); diff --git a/node_modules/less-brunch/node_modules/less/package.json b/node_modules/less-brunch/node_modules/less/package.json new file mode 100644 index 0000000..c57989b --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/package.json @@ -0,0 +1,13 @@ +{ + "name" : "less", + "description" : "Leaner CSS", + "url" : "http://lesscss.org", + "keywords" : ["css", "parser", "lesscss", "browser"], + "author" : "Alexis Sellier ", + "contributors" : [], + "version" : "1.3.0", + "bin" : { "lessc": "./bin/lessc" }, + "main" : "./lib/less/index", + "directories" : { "test": "./test" }, + "engines" : { "node": ">=0.4.0" } +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/colors.css b/node_modules/less-brunch/node_modules/less/test/css/colors.css new file mode 100644 index 0000000..b451642 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/colors.css @@ -0,0 +1,58 @@ +#yelow #short { + color: #fea; +} +#yelow #long { + color: #ffeeaa; +} +#yelow #rgba { + color: rgba(255, 238, 170, 0.1); +} +#yelow #argb { + color: #1affeeaa; +} +#blue #short { + color: #00f; +} +#blue #long { + color: #0000ff; +} +#blue #rgba { + color: rgba(0, 0, 255, 0.1); +} +#blue #argb { + color: #1a0000ff; +} +#alpha #hsla { + color: rgba(61, 45, 41, 0.6); +} +#overflow .a { + color: #000000; +} +#overflow .b { + color: #ffffff; +} +#overflow .c { + color: #ffffff; +} +#overflow .d { + color: #00ff00; +} +#grey { + color: #c8c8c8; +} +#808080 { + color: #808080; +} +#00ff00 { + color: #00ff00; +} +.lightenblue { + color: #3333ff; +} +.darkenblue { + color: #0000cc; +} +.unknowncolors { + color: blue2; + border: 2px solid superred; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/comments.css b/node_modules/less-brunch/node_modules/less/test/css/comments.css new file mode 100644 index 0000000..352dd48 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/comments.css @@ -0,0 +1,56 @@ +/******************\ +* * +* Comment Header * +* * +\******************/ +/* + + Comment + +*/ +/* + * Comment Test + * + * - cloudhead (http://cloudhead.net) + * + */ +/* Colors + * ------ + * #EDF8FC (background blue) + * #166C89 (darkest blue) + * + * Text: + * #333 (standard text) // A comment within a comment! + * #1F9EC9 (standard link) + * + */ +/* @group Variables +------------------- */ +#comments { + /**/ + color: red; + /* A C-style comment */ + + background-color: orange; + font-size: 12px; + /* lost comment */ + content: "content"; + border: 1px solid black; + padding: 0; + margin: 2em; +} +/* commented out + #more-comments { + color: grey; + } +*/ +.selector, +.lots, +.comments { + color: #808080, /* blue */ #ffa500; + -webkit-border-radius: 2px /* webkit only */; + -moz-border-radius: 8px /* moz only with operation */; +} +#last { + color: #0000ff; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/css-3.css b/node_modules/less-brunch/node_modules/less/test/css/css-3.css new file mode 100644 index 0000000..45bdc40 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/css-3.css @@ -0,0 +1,58 @@ +.comma-delimited { + background: url(bg.jpg) no-repeat, url(bg.png) repeat-x top left, url(bg); + text-shadow: -1px -1px 1px #ff0000, 6px 5px 5px #ffff00; + -moz-box-shadow: 0pt 0pt 2px rgba(255, 255, 255, 0.4) inset, 0pt 4px 6px rgba(255, 255, 255, 0.4) inset; +} +@font-face { + font-family: Headline; + src: local(Futura-Medium), url(fonts.svg#MyGeometricModern) format("svg"); +} +.other { + -moz-transform: translate(0, 11em) rotate(-90deg); +} +p:not([class*="lead"]) { + color: black; +} +input[type="text"].class#id[attr=32]:not(1) { + color: white; +} +div#id.class[a=1][b=2].class:not(1) { + color: white; +} +ul.comma > li:not(:only-child)::after { + color: white; +} +ol.comma > li:nth-last-child(2)::after { + color: white; +} +li:nth-child(4n+1), +li:nth-child(-5n), +li:nth-child(-n+2) { + color: white; +} +a[href^="http://"] { + color: black; +} +a[href$="http://"] { + color: black; +} +form[data-disabled] { + color: black; +} +p::before { + color: black; +} +#issue322 { + -webkit-animation: anim2 7s infinite ease-in-out; +} +@-webkit-keyframes frames { + 0% { + border: 1px; + } + 5.5% { + border: 2px; + } + 100% { + border: 3px; + } +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/css-escapes.css b/node_modules/less-brunch/node_modules/less/test/css/css-escapes.css new file mode 100644 index 0000000..278d557 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/css-escapes.css @@ -0,0 +1,20 @@ +.escape\|random\|char { + color: red; +} +.mixin\!tUp { + font-weight: bold; +} +.\34 04 { + background: red; +} +.\34 04 strong { + color: #ff00ff; + font-weight: bold; +} +.trailingTest\+ { + color: red; +} +/* This hideous test of hideousness checks for the selector "blockquote" with various permutations of hex escapes */ +\62\6c\6f \63 \6B \0071 \000075o\74 e { + color: silver; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/css.css b/node_modules/less-brunch/node_modules/less/test/css/css.css new file mode 100644 index 0000000..63d20ec --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/css.css @@ -0,0 +1,89 @@ +@charset "utf-8"; +div { + color: black; +} +div { + width: 99%; +} +* { + min-width: 45em; +} +h1, +h2 > a > p, +h3 { + color: none; +} +div.class { + color: blue; +} +div#id { + color: green; +} +.class#id { + color: purple; +} +.one.two.three { + color: grey; +} +@media print { + font-size: 3em; +} +@media screen { + font-size: 10px; +} +@font-face { + font-family: 'Garamond Pro'; + src: url("/fonts/garamond-pro.ttf"); +} +a:hover, +a:link { + color: #999; +} +p, +p:first-child { + text-transform: none; +} +q:lang(no) { + quotes: none; +} +p + h1 { + font-size: 2.2em; +} +#shorthands { + border: 1px solid #000; + font: 12px/16px Arial; + font: 100%/16px Arial; + margin: 1px 0; + padding: 0 auto; + background: url("http://www.lesscss.org/spec.html") no-repeat 0 4px; +} +#more-shorthands { + margin: 0; + padding: 1px 0 2px 0; + font: normal small/20px 'Trebuchet MS', Verdana, sans-serif; +} +.misc { + -moz-border-radius: 2px; + display: -moz-inline-stack; + width: .1em; + background-color: #009998; + background-image: url(images/image.jpg); + background: -webkit-gradient(linear, left top, left bottom, from(#ff0000), to(#0000ff)); + margin: ; + filter: alpha(opacity=100); +} +#important { + color: red !important; + width: 100%!important; + height: 20px ! important; +} +#data-uri { + background: url(data:image/png;charset=utf-8;base64, + kiVBORw0KGgoAAAANSUhEUgAAABAAAAAQAQMAAAAlPW0iAAAABlBMVEUAAAD/ + k//+l2Z/dAAAAM0lEQVR4nGP4/5/h/1+G/58ZDrAz3D/McH8yw83NDDeNGe4U + kg9C9zwz3gVLMDA/A6P9/AFGGFyjOXZtQAAAAAElFTkSuQmCC); + background-image: url(data:image/x-png,f9difSSFIIGFIFJD1f982FSDKAA9==); +} +#svg-data-uri { + background: transparent url('data:image/svg+xml, '); +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/functions.css b/node_modules/less-brunch/node_modules/less/test/css/functions.css new file mode 100644 index 0000000..8232814 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/functions.css @@ -0,0 +1,43 @@ +#functions { + color: #660000; + width: 16; + height: undefined("self"); + border-width: 5; + variable: 11; +} +#built-in { + escaped: -Some::weird(#thing, y); + lighten: #ffcccc; + darken: #330000; + saturate: #203c31; + desaturate: #29332f; + greyscale: #2e2e2e; + spin-p: #bf6a40; + spin-n: #bf4055; + format: "rgb(32, 128, 64)"; + format-string: "hello world"; + format-multiple: "hello earth 2"; + format-url-encode: "red is %23ff0000"; + eformat: rgb(32, 128, 64); + hue: 98; + saturation: 12%; + lightness: 95%; + rounded: 11; + roundedpx: 3px; + percentage: 20%; + color: #ff0011; +} +#built-in .is-a { + color: true; + color: true; + color: true; + keyword: true; + number: true; + string: true; + pixel: true; + percent: true; + em: true; +} +#alpha { + alpha: rgba(153, 94, 51, 0.6); +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/ie-filters.css b/node_modules/less-brunch/node_modules/less/test/css/ie-filters.css new file mode 100644 index 0000000..933318a --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/ie-filters.css @@ -0,0 +1,5 @@ +.nav { + filter: progid:dximagetransform.microsoft.alpha(opacity=20); + filter: progid:dximagetransform.microsoft.alpha(opacity=0); + filter: progid:dximagetransform.microsoft.gradient(startColorstr="#333333", endColorstr="#000000", GradientType=0); +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/import.css b/node_modules/less-brunch/node_modules/less/test/css/import.css new file mode 100644 index 0000000..89dc162 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/import.css @@ -0,0 +1,23 @@ +@import "import-test-d.css"; + +@import url(http://fonts.googleapis.com/css?family=Open+Sans); + +@import url(something.css) screen and (color) and (max-width: 600px); +#import { + color: #ff0000; +} +.mixin { + height: 10px; + color: #ff0000; +} +#import-test { + height: 10px; + color: #ff0000; + width: 10px; + height: 30%; +} +@media screen and (max-width: 600px) { + body { + width: 100%; + } +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/javascript.css b/node_modules/less-brunch/node_modules/less/test/css/javascript.css new file mode 100644 index 0000000..5a3f822 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/javascript.css @@ -0,0 +1,22 @@ +.eval { + js: 42; + js: 2; + js: "hello world"; + js: 1, 2, 3; + title: "node"; + ternary: true; +} +.scope { + var: 42; + escaped: 7px; +} +.vars { + width: 8; +} +.escape-interpol { + width: hello world; +} +.arrays { + ary: "1, 2, 3"; + ary: "1, 2, 3"; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/lazy-eval.css b/node_modules/less-brunch/node_modules/less/test/css/lazy-eval.css new file mode 100644 index 0000000..1adfb8f --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/lazy-eval.css @@ -0,0 +1,3 @@ +.lazy-eval { + width: 100%; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/media.css b/node_modules/less-brunch/node_modules/less/test/css/media.css new file mode 100644 index 0000000..61d169d --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/media.css @@ -0,0 +1,79 @@ +@media print { + .class { + color: blue; + } + .class .sub { + width: 42; + } + .top, + header > h1 { + color: #444444; + } +} +@media screen { + body { + max-width: 480; + } +} +@media all and (orientation: portrait) { + aside { + float: none; + } +} +@media handheld and (min-width: 42), screen and (min-width: 20em) { + body { + max-width: 480px; + } +} +@media print { + body { + padding: 20px; + } + body header { + background-color: red; + } +} +@media print and (orientation: landscape) { + body { + margin-left: 20px; + } +} +@media a, b and c { + body { + width: 95%; + } +} +@media a and x, b and c and x, a and y, b and c and y { + body { + width: 100%; + } +} +.a { + background: black; +} +@media handheld { + .a { + background: white; + } +} +@media handheld and (max-width: 100px) { + .a { + background: red; + } +} +.b { + background: black; +} +@media handheld { + .b { + background: white; + } +} +@media handheld and (max-width: 200px) { + .b { + background: red; + } +} +@media only screen and (max-width: 200px) { + width: 480px; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/mixins-args.css b/node_modules/less-brunch/node_modules/less/test/css/mixins-args.css new file mode 100644 index 0000000..8e544ba --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/mixins-args.css @@ -0,0 +1,76 @@ +#hidden { + color: transparent; + color: transparent; +} +.two-args { + color: blue; + width: 10px; + height: 99%; + border: 2px dotted #000000; +} +.one-arg { + width: 15px; + height: 49%; +} +.no-parens { + width: 5px; + height: 49%; +} +.no-args { + width: 5px; + height: 49%; +} +.var-args { + width: 45; + height: 17%; +} +.multi-mix { + width: 10px; + height: 29%; + margin: 4; + padding: 5; +} +body { + padding: 30px; + color: #ff0000; +} +.scope-mix { + width: 8; +} +.content { + width: 600px; +} +.content .column { + margin: 600px; +} +#same-var-name { + radius: 5px; +} +#var-inside { + width: 10px; +} +.id-class { + color: red; + color: red; +} +.arguments { + border: 1px solid #000000; + width: 1px; +} +.arguments2 { + border: 0px; + width: 0px; +} +.arguments3 { + border: 0px; + width: 0px; +} +.arguments4 { + border: 0 1 2 3 4; + rest: 1 2 3 4; + width: 0; +} +.edge-case { + border: "{"; + width: "{"; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/mixins-closure.css b/node_modules/less-brunch/node_modules/less/test/css/mixins-closure.css new file mode 100644 index 0000000..b1021b6 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/mixins-closure.css @@ -0,0 +1,9 @@ +.class { + width: 99px; +} +.overwrite { + width: 99px; +} +.nested .class { + width: 5px; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/mixins-guards.css b/node_modules/less-brunch/node_modules/less/test/css/mixins-guards.css new file mode 100644 index 0000000..0c563e5 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/mixins-guards.css @@ -0,0 +1,58 @@ +.light1 { + color: white; + margin: 1px; +} +.light2 { + color: black; + margin: 1px; +} +.max1 { + width: 6; +} +.max2 { + width: 8; +} +.glob1 { + margin: auto auto; +} +.ops1 { + height: gt-or-eq; + height: lt-or-eq; +} +.ops2 { + height: gt-or-eq; + height: not-eq; +} +.ops3 { + height: lt-or-eq; + height: not-eq; +} +.default1 { + content: default; +} +.test1 { + content: "true."; +} +.test2 { + content: "false."; +} +.test3 { + content: "false."; +} +.test4 { + content: "false."; +} +.test5 { + content: "false."; +} +.bool1 { + content: true and true; + content: true; + content: false, true; + content: false and true and true, true; + content: false, true and true; + content: false, false, true; + content: false, true and true and true, false; + content: not false; + content: not false and false, not false; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/mixins-important.css b/node_modules/less-brunch/node_modules/less/test/css/mixins-important.css new file mode 100644 index 0000000..2f74c64 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/mixins-important.css @@ -0,0 +1,17 @@ +.class { + border: 1; + boxer: 1; + border: 2 !important; + boxer: 2 !important; + border: 3; + boxer: 3; + border: 4 !important; + boxer: 4 !important; + border: 5; + boxer: 5; + border: 0 !important; + boxer: 0 !important; + border: 9 !important; + border: 9; + boxer: 9; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/mixins-nested.css b/node_modules/less-brunch/node_modules/less/test/css/mixins-nested.css new file mode 100644 index 0000000..6378c47 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/mixins-nested.css @@ -0,0 +1,14 @@ +.class .inner { + height: 300; +} +.class .inner .innest { + width: 30; + border-width: 60; +} +.class2 .inner { + height: 600; +} +.class2 .inner .innest { + width: 60; + border-width: 120; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/mixins-pattern.css b/node_modules/less-brunch/node_modules/less/test/css/mixins-pattern.css new file mode 100644 index 0000000..8b82833 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/mixins-pattern.css @@ -0,0 +1,47 @@ +.zero { + variadic: true; + zero: 0; + one: 1; + two: 2; + three: 3; +} +.one { + variadic: true; + one: 1; + one-req: 1; + two: 2; + three: 3; +} +.two { + variadic: true; + two: 2; + three: 3; +} +.three { + variadic: true; + three-req: 3; + three: 3; +} +.left { + left: 1; +} +.right { + right: 1; +} +.border-right { + color: black; + border-right: 4px; +} +.border-left { + color: black; + border-left: 4px; +} +.only-right { + right: 33; +} +.only-left { + left: 33; +} +.left-right { + both: 330; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/mixins.css b/node_modules/less-brunch/node_modules/less/test/css/mixins.css new file mode 100644 index 0000000..45d5179 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/mixins.css @@ -0,0 +1,71 @@ +.mixin { + border: 1px solid black; +} +.mixout { + border-color: orange; +} +.borders { + border-style: dashed; +} +#namespace .borders { + border-style: dotted; +} +#namespace .biohazard { + content: "death"; +} +#namespace .biohazard .man { + color: transparent; +} +#theme > .mixin { + background-color: grey; +} +#container { + color: black; + border: 1px solid black; + border-color: orange; + background-color: grey; +} +#header .milk { + color: white; + border: 1px solid black; + background-color: grey; +} +#header #cookie { + border-style: dashed; +} +#header #cookie .chips { + border-style: dotted; +} +#header #cookie .chips .calories { + color: black; + border: 1px solid black; + border-color: orange; + background-color: grey; +} +.secure-zone { + color: transparent; +} +.direct { + border-style: dotted; +} +.bo, +.bar { + width: 100%; +} +.bo { + border: 1px; +} +.ar.bo.ca { + color: black; +} +.jo.ki { + background: none; +} +.extended { + width: 100%; + border: 1px; + background: none; +} +.foo .bar { + width: 100%; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/operations.css b/node_modules/less-brunch/node_modules/less/test/css/operations.css new file mode 100644 index 0000000..fb9e0af --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/operations.css @@ -0,0 +1,49 @@ +#operations { + color: #111111; + height: 9px; + width: 3em; + substraction: 0; + division: 1; +} +#operations .spacing { + height: 9px; + width: 3em; +} +.with-variables { + height: 16em; + width: 24em; + size: 1cm; +} +.with-functions { + color: #646464; + color: #ff8080; + color: #c94a4a; +} +.negative { + height: 0px; + width: 4px; +} +.shorthands { + padding: -1px 2px 0 -4px; +} +.rem-dimensions { + font-size: 5.5rem; +} +.colors { + color: #123; + border-color: #334455; + background-color: #000000; +} +.colors .other { + color: #222222; + border-color: #222222; +} +.negations { + variable: -4px; + variable1: 0px; + variable2: 0px; + variable3: 8px; + variable4: 0px; + paren: -4px; + paren2: 16px; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/parens.css b/node_modules/less-brunch/node_modules/less/test/css/parens.css new file mode 100644 index 0000000..36487fe --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/parens.css @@ -0,0 +1,20 @@ +.parens { + border: 2px solid #000000; + margin: 1px 3px 16 3; + width: 36; + padding: 2px 36px; +} +.more-parens { + padding: 8 4 4 4px; + width: 96; + height: 113; + margin: 12; +} +.nested-parens { + width: 71; + height: 6; +} +.mixed-units { + margin: 2px 4em 1 5pc; + padding: 6px 1em 2px 2; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/rulesets.css b/node_modules/less-brunch/node_modules/less/test/css/rulesets.css new file mode 100644 index 0000000..408c76a --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/rulesets.css @@ -0,0 +1,33 @@ +#first > .one { + font-size: 2em; +} +#first > .one > #second .two > #deux { + width: 50%; +} +#first > .one > #second .two > #deux #third { + height: 100%; +} +#first > .one > #second .two > #deux #third:focus { + color: black; +} +#first > .one > #second .two > #deux #third:focus #fifth > #sixth .seventh #eighth + #ninth { + color: purple; +} +#first > .one > #second .two > #deux #fourth, +#first > .one > #second .two > #deux #five, +#first > .one > #second .two > #deux #six { + color: #110000; +} +#first > .one > #second .two > #deux #fourth .seven, +#first > .one > #second .two > #deux #five .seven, +#first > .one > #second .two > #deux #six .seven, +#first > .one > #second .two > #deux #fourth .eight > #nine, +#first > .one > #second .two > #deux #five .eight > #nine, +#first > .one > #second .two > #deux #six .eight > #nine { + border: 1px solid black; +} +#first > .one > #second .two > #deux #fourth #ten, +#first > .one > #second .two > #deux #five #ten, +#first > .one > #second .two > #deux #six #ten { + color: red; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/scope.css b/node_modules/less-brunch/node_modules/less/test/css/scope.css new file mode 100644 index 0000000..11feda8 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/scope.css @@ -0,0 +1,15 @@ +.tiny-scope { + color: #998899; +} +.scope1 { + color: #0000ff; + border-color: #000000; +} +.scope1 .scope2 { + color: #0000ff; +} +.scope1 .scope2 .scope3 { + color: #ff0000; + border-color: #000000; + background-color: #ffffff; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/selectors.css b/node_modules/less-brunch/node_modules/less/test/css/selectors.css new file mode 100644 index 0000000..6f69a8c --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/selectors.css @@ -0,0 +1,69 @@ +h1 a:hover, +h2 a:hover, +h3 a:hover, +h1 p:hover, +h2 p:hover, +h3 p:hover { + color: red; +} +#all { + color: blue; +} +#the { + color: blue; +} +#same { + color: blue; +} +ul, +li, +div, +q, +blockquote, +textarea { + margin: 0; +} +td { + margin: 0; + padding: 0; +} +td, +input { + line-height: 1em; +} +a { + color: red; +} +a:hover { + color: blue; +} +div a { + color: green; +} +p a span { + color: yellow; +} +.foo .bar .qux, +.foo .baz .qux { + display: block; +} +.qux .foo .bar, +.qux .foo .baz { + display: inline; +} +.qux .foo .bar .biz, +.qux .foo .baz .biz { + display: none; +} +.other ::fnord { + color: #ff0000; +} +.other::fnord { + color: #ff0000; +} +.other ::bnord { + color: #ff0000; +} +.other::bnord { + color: #ff0000; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/strings.css b/node_modules/less-brunch/node_modules/less/test/css/strings.css new file mode 100644 index 0000000..80e115c --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/strings.css @@ -0,0 +1,40 @@ +#strings { + background-image: url("http://son-of-a-banana.com"); + quotes: "~" "~"; + content: "#*%:&^,)!.(~*})"; + empty: ""; + brackets: "{" "}"; + escapes: "\"hello\" \\world"; + escapes2: "\"llo"; +} +#comments { + content: "/* hello */ // not-so-secret"; +} +#single-quote { + quotes: "'" "'"; + content: '""#!&""'; + empty: ''; + semi-colon: ';'; +} +#escaped { + filter: DX.Transform.MS.BS.filter(opacity=50); +} +#one-line { + image: url(http://tooks.com); +} +#crazy { + image: url(http://), "}", url("http://}"); +} +#interpolation { + url: "http://lesscss.org/dev/image.jpg"; + url2: "http://lesscss.org/image-256.jpg"; + url3: "http://lesscss.org#445566"; + url4: "http://lesscss.org/hello"; + url5: "http://lesscss.org/54.4"; +} +.mix-mul-class { + color: #0000ff; + color: #ff0000; + color: #0000ff; + color: #ffa500; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/variables.css b/node_modules/less-brunch/node_modules/less/test/css/variables.css new file mode 100644 index 0000000..961fe69 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/variables.css @@ -0,0 +1,27 @@ +.variables { + width: 14cm; +} +.variables { + height: 24px; + color: #888888; + font-family: "Trebuchet MS", Verdana, sans-serif; + quotes: "~" "~"; +} +.redefinition { + three: 3; +} +.values { + font-family: 'Trebuchet', 'Trebuchet', 'Trebuchet'; + color: #888888 !important; + url: url('Trebuchet'); + multi: something 'A', B, C, 'Trebuchet'; +} +.variable-names { + name: 'hello'; +} +.alpha { + filter: alpha(opacity=42); +} +a:nth-child(2) { + border: 1px; +} diff --git a/node_modules/less-brunch/node_modules/less/test/css/whitespace.css b/node_modules/less-brunch/node_modules/less/test/css/whitespace.css new file mode 100644 index 0000000..56e067f --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/css/whitespace.css @@ -0,0 +1,38 @@ +.whitespace { + color: white; +} +.whitespace { + color: white; +} +.whitespace { + color: white; +} +.whitespace { + color: white; +} +.whitespace { + color: white ; +} +.white, +.space, +.mania { + color: white; +} +.no-semi-column { + color: #ffffff; +} +.no-semi-column { + color: white; + white-space: pre; +} +.no-semi-column { + border: 2px solid #ffffff; +} +.newlines { + background: the, + great, + wall; + border: 2px + solid + black; +} diff --git a/node_modules/less-brunch/node_modules/less/test/less-test.js b/node_modules/less-brunch/node_modules/less/test/less-test.js new file mode 100644 index 0000000..46412e0 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/less-test.js @@ -0,0 +1,73 @@ +var path = require('path'), + fs = require('fs'), + sys = require('util'); + +var less = require('../lib/less'); + +less.tree.functions.add = function (a, b) { + return new(less.tree.Dimension)(a.value + b.value); +} +less.tree.functions.increment = function (a) { + return new(less.tree.Dimension)(a.value + 1); +} +less.tree.functions._color = function (str) { + if (str.value === "evil red") { return new(less.tree.Color)("600") } +} + +sys.puts("\n" + stylize("LESS", 'underline') + "\n"); + +fs.readdirSync('test/less').forEach(function (file) { + if (! /\.less/.test(file)) { return } + + toCSS('test/less/' + file, function (err, less) { + var name = path.basename(file, '.less'); + + fs.readFile(path.join('test/css', name) + '.css', 'utf-8', function (e, css) { + sys.print("- " + name + ": ") + if (less === css) { sys.print(stylize('OK', 'green')) } + else if (err) { + sys.print(stylize("ERROR: " + (err && err.message), 'red')); + } else { + sys.print(stylize("FAIL", 'yellow')); + } + sys.puts(""); + }); + }); +}); + +function toCSS(path, callback) { + var tree, css; + fs.readFile(path, 'utf-8', function (e, str) { + if (e) { return callback(e) } + + new(less.Parser)({ + paths: [require('path').dirname(path)], + optimization: 0 + }).parse(str, function (err, tree) { + if (err) { + callback(err); + } else { + try { + css = tree.toCSS(); + callback(null, css); + } catch (e) { + callback(e); + } + } + }); + }); +} + +// Stylize a string +function stylize(str, style) { + var styles = { + 'bold' : [1, 22], + 'inverse' : [7, 27], + 'underline' : [4, 24], + 'yellow' : [33, 39], + 'green' : [32, 39], + 'red' : [31, 39] + }; + return '\033[' + styles[style][0] + 'm' + str + + '\033[' + styles[style][1] + 'm'; +} diff --git a/node_modules/less-brunch/node_modules/less/test/less/import/import-test-d.css b/node_modules/less-brunch/node_modules/less/test/less/import/import-test-d.css new file mode 100644 index 0000000..30575f0 --- /dev/null +++ b/node_modules/less-brunch/node_modules/less/test/less/import/import-test-d.css @@ -0,0 +1 @@ +#css { color: yellow; } diff --git a/node_modules/less-brunch/package.json b/node_modules/less-brunch/package.json new file mode 100644 index 0000000..6336ad6 --- /dev/null +++ b/node_modules/less-brunch/package.json @@ -0,0 +1,27 @@ +{ + "name": "less-brunch", + "version": "1.1.1", + "description": "Adds LESS support to brunch.", + "author": "Paul Miller (http://paulmillr.com/)", + "homepage": "https://github.com/brunch/less-brunch", + "repository": { + "type": "git", + "url": "git@github.com:brunch/less-brunch.git" + }, + "main": "./lib/index", + "scripts": { + "postinstall": "node setup.js postinstall", + "test": "node setup.js test" + }, + "engines": { + "node": "~0.6.10" + }, + "dependencies": { + "coffee-script": "1.2.0", + "less": "1.3.0" + }, + "devDependencies": { + "mocha": "0.12.1", + "expect.js": "0.1.2" + } +} diff --git a/node_modules/less-brunch/setup.js b/node_modules/less-brunch/setup.js new file mode 100644 index 0000000..95b6ce8 --- /dev/null +++ b/node_modules/less-brunch/setup.js @@ -0,0 +1,22 @@ +var exec = require('child_process').exec; +var sysPath = require('path'); + +var mode = process.argv[2]; + +var execute = function(pathParts, params, callback) { + if (callback == null) callback = function() {}; + var path = sysPath.join.apply(null, pathParts); + var command = 'node ' + path + ' ' + params; + console.log('Executing', command); + exec(command, function(error, stdout, stderr) { + if (error != null) return process.stderr.write(stderr.toString()); + process.stdout.write(stdout.toString()); + }); +}; + +if (mode === 'postinstall') { + execute(['node_modules', 'coffee-script', 'bin', 'coffee'], '-o lib/ src/'); +} else if (mode === 'test') { + execute(['node_modules', 'mocha', 'bin', 'mocha'], + '--require test/common.js --colors'); +} diff --git a/node_modules/less-brunch/src/index.coffee b/node_modules/less-brunch/src/index.coffee new file mode 100644 index 0000000..8ca83de --- /dev/null +++ b/node_modules/less-brunch/src/index.coffee @@ -0,0 +1,25 @@ +less = require 'less' +sysPath = require 'path' + +module.exports = class LESSCompiler + brunchPlugin: yes + type: 'stylesheet' + extension: 'less' + + constructor: (@config) -> + null + + compile: (data, path, callback) -> + parser = new less.Parser + paths: [@config.paths.root, (sysPath.dirname path)], + filename: path + parser.parse data, (error, tree) => + return callback error.message if error? + + try + callback null, tree.toCSS() + catch ex + errStr = "#{ex.type}Error:#{ex.message}" + if ex.filename + errStr += " in '#{ex.filename}:#{ex.line}:#{ex.column}'" + callback errStr diff --git a/node_modules/less-brunch/test/common.js b/node_modules/less-brunch/test/common.js new file mode 100644 index 0000000..669b132 --- /dev/null +++ b/node_modules/less-brunch/test/common.js @@ -0,0 +1,2 @@ +expect = require('expect.js'); +Plugin = require('../lib'); diff --git a/node_modules/less-brunch/test/plugin_test.js b/node_modules/less-brunch/test/plugin_test.js new file mode 100644 index 0000000..31caabb --- /dev/null +++ b/node_modules/less-brunch/test/plugin_test.js @@ -0,0 +1,37 @@ +describe('Plugin', function() { + var plugin; + + beforeEach(function() { + plugin = new Plugin({}); + }); + + it('should be an object', function() { + expect(plugin).to.be.ok(); + }); + + it('should has #compile method', function() { + expect(plugin.compile).to.be.a(Function); + }); + + it('should compile and produce valid result', function(done) { + var content = '@color: #4D926F; #header {color: @color;}'; + var expected = '#header {\n color: #4d926f;\n}\n'; + + plugin.compile(content, 'style.less', function(error, data) { + expect(error).not.to.be.ok(); + expect(data).to.equal(expected) + done(); + }); + }); + + it('should handle invalid less gracefully', function(done) { + var content = '#header {color: @color;}'; + var expected = "NameError:variable @color is undefined in 'style.less:1:16'" + + plugin.compile(content, 'style.less', function(error, data) { + expect(error).to.be.ok(); + expect(error).to.equal(expected); + done(); + }); + }); +}); diff --git a/package.json b/package.json index 8e0e467..9d8f670 100644 --- a/package.json +++ b/package.json @@ -19,6 +19,7 @@ "coffee-script-brunch": "> 1.0 < 1.3", "css-brunch": "> 1.0 < 1.3", + "less-brunch": "> 1.0 < 1.3", "handlebars-brunch": "> 1.0 < 1.3",