Version 0.0.1

.travis.yml

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+language: node_js
+node_js:
+  - 0.4
+  - 0.5
+  - 0.6

History.md

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+# Changes
+
+## 0.0.1 / 2012-10-18
+
+  - Initial release

License.md

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+Copyright 2012 Irakli Gozalishvili. All rights reserved.
+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.

Readme.md

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+# pattern-exp
+
+[![Build Status](https://secure.travis-ci.org/Gozala/pattern-exp.png)](http://travis-ci.org/Gozala/pattern-exp)
+
+Utility for regexp creation out of string patterns
+
+## Install
+
+    npm install pattern-exp

package.json

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+{
+  "name": "pattern-exp",
+  "id": "pattern-exp",
+  "version": "0.0.1",
+  "description": "Utility for regexp creation out of string patterns",
+  "keywords": [ "pattern-exp" ],
+  "author": "Irakli Gozalishvili <rfobic@gmail.com> (http://jeditoolkit.com)",
+  "homepage": "https://github.com/Gozala/pattern-exp",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Gozala/pattern-exp.git",
+    "web": "https://github.com/Gozala/pattern-exp"
+  },
+  "bugs": {
+    "url": "http://github.com/Gozala/pattern-exp/issues/"
+  },
+  "devDependencies": {
+    "test": ">=0.4.4",
+    "repl-utils": ">=1.0.0"
+  },
+  "scripts": {
+    "test": "node test/test-all.js",
+    "repl": "node node_modules/repl-utils"
+  },
+  "licenses": [{
+    "type" : "MIT",
+    "url" : "https://github.com/Gozala/pattern-exp/License.md"
+  }]
+}

pattern-exp.js

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+/* vim:set ts=2 sw=2 sts=2 expandtab */
+/*jshint asi: true undef: true es5: true node: true browser: true devel: true
+         forin: true latedef: false globalstrict: true*/
+
+"use strict";
+
+var stirgifier = Object.prototype.toString
+var ESCAPE_PATTERN = /[\.\?\*\+\^\$\|\(\)\{\[\]\\]/g
+
+function escape(pattern) {
+  /**
+  Returns the `pattern` with all regexp meta characters in it backslashed.
+  **/
+  return String(pattern).replace(ESCAPE_PATTERN, '\\$&')
+}
+escape.pattern = ESCAPE_PATTERN
+
+function Pattern(pattern, flags) {
+  /**
+  Function takes `pattern` string or regexp & optional flags string,
+  which is just regexp flags and returns instance of `RegExp` by actually
+  calling it. If pattern fails to compile it will escaped given pattern and
+  compile it to regexp after.
+
+  ## examples
+ 
+  RegExp("[")          // => SyntaxError("unterminated character class")
+  RegExp(/:/, "y")     // => TypeError("can't supply flags when ...")
+  Pattern("[")          // => /\[/
+  Pattern(/:/, "y")     // => /:/
+  **/
+  if (!pattern.exec) {
+    try {
+      pattern = RegExp(pattern, flags)
+    } catch (exception) {
+      if (exception instanceof SyntaxError)
+        pattern = RegExp(escape(pattern), flags)
+      else
+        throw exception
+    }
+  }
+  return pattern
+}
+Pattern.escape = escape
+
+module.exports = Pattern

test/test-all.js

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+/* vim:set ts=2 sw=2 sts=2 expandtab */
+/*jshint asi: true undef: true es5: true node: true browser: true devel: true
+         forin: true latedef: false globalstrict: true*/
+
+"use strict";
+
+var pattern = require("../pattern-exp")
+
+exports["test pattern"] = function(assert) {
+  assert.deepEqual(pattern("["), /\[/, "pattern escapes brackets")
+  assert.deepEqual(pattern(/:/, "y"), /\:/, "pattern escapes")
+}
+
+exports["test pattern flags"] = function(assert) {
+  assert.deepEqual(pattern("[hello]", "g"), /\[hello\]/g, "flags work")
+}
+
+require("test").run(exports)