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root = true | ||
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[*] | ||
charset = utf-8 | ||
end_of_line = lf | ||
indent_style = space | ||
indent_size = 2 | ||
insert_final_newline = true | ||
trim_trailing_whitespace = true | ||
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[*.md] | ||
trim_trailing_whitespace = false |
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env: | ||
browser: false | ||
node: true | ||
rules: | ||
no-extra-parens: 2 | ||
eqeqeq: 2 | ||
block-scoped-var: 2 | ||
quotes: | ||
- 2 | ||
- single |
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* text=auto |
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node_modules | ||
coverage |
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language: node_js | ||
node_js: | ||
- '0.10' | ||
- '0.11' | ||
after_script: | ||
- npm run-script coveralls | ||
notifications: | ||
email: false |
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The MIT License (MIT) | ||
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Copyright (c) 2014 Shinnosuke Watanabe | ||
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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: | ||
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The above copyright notice and this permission notice shall be included in all | ||
copies or substantial portions of the Software. | ||
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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. |
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# script-equal | ||
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[![Build Status](https://travis-ci.org/shinnn/script-equal.svg?branch=master)](https://travis-ci.org/shinnn/script-equal) | ||
[![Build status](https://ci.appveyor.com/api/projects/status/ia3h5bcsy84vgfpc?svg=true)](https://ci.appveyor.com/project/ShinnosukeWatanabe/script-equal) | ||
[![Coverage Status](https://img.shields.io/coveralls/shinnn/script-equal.svg)](https://coveralls.io/r/shinnn/script-equal) | ||
[![Dependency Status](https://david-dm.org/shinnn/script-equal.svg)](https://david-dm.org/shinnn/script-equal) | ||
[![devDependency Status](https://david-dm.org/shinnn/script-equal/dev-status.svg)](https://david-dm.org/shinnn/script-equal#info=devDependencies) | ||
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Check if one JavaScript code is equivalent to another code, using [UglifyJS] | ||
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```javascript | ||
var scriptEqual = require('script-equal'); | ||
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scriptEqual( | ||
'window.foo = {a: 0, b: 1};', | ||
'window["foo"]={\nb: 1,\rna: 0\n};' | ||
); //=> true | ||
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scriptEqual( | ||
'var foo = 12', | ||
'var foo = 1 + 1 * 14 - 3;;;;;;;;;;;;;;;;;;;' | ||
); //=> true | ||
``` | ||
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## Installation | ||
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[![NPM version](https://badge.fury.io/js/script-equal.svg)](https://www.npmjs.org/package/script-equal) | ||
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[Use npm.](https://www.npmjs.org/doc/cli/npm-install.html) | ||
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``` | ||
npm install script-equal | ||
``` | ||
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## API | ||
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```javascript | ||
var scriptEqual = require('script-equal'); | ||
``` | ||
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### scriptEqual(*script0*, *script1* [, *options*]) | ||
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*script0*:`String` (JavaScript code) | ||
*script1*:`String` (JavaScript code) | ||
*options*: `Object` ([UglifyJS][options] options) | ||
Return: `Boolean` | ||
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It compresses two JavaScript string with [UglifyJS]. If the results are the same string, it returns `true`. Otherwise it returns `false`. | ||
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You can use all [UglifyJS][options] options. | ||
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```javascript | ||
var scriptEqual = require('script-equal'); | ||
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var foo = 'a = {}; a.b = 0;'; | ||
var bar = 'a = {}; a[\'b\'] = 0;'; | ||
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scriptEqual(foo, bar); //=> true | ||
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scriptEqual(foo, bar, { | ||
compress: {properties: false} | ||
}); //=> false | ||
``` | ||
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It throws an error when it fails to parse strings. | ||
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```javascript | ||
scriptEqual('a = 1', '1 = a'); // Error | ||
``` | ||
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## License | ||
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Copyright (c) 2014 [Shinnosuke Watanabe](https://github.com/shinnn) | ||
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Licensed under [the MIT License](./LICENSE). | ||
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[UglifyJS]: https://github.com/mishoo/UglifyJS2 | ||
[options]: https://github.com/mishoo/UglifyJS2#api-reference |
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init: | ||
- git config --global core.autocrlf input | ||
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version: '{build}' | ||
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environment: | ||
matrix: | ||
- nodejs_version: '0.10' | ||
- nodejs_version: '0.11' | ||
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install: | ||
- ps: Install-Product node $env:nodejs_version | ||
- npm install --production | ||
- npm install tape | ||
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build: off | ||
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test_script: | ||
- ps: 'node test.js #PowerShell' | ||
- cmd: node test.js |
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/*! | ||
* script-equal | MIT (c) Shinnosuke Watanabe | ||
* https://github.com/shinnn/script-equal | ||
*/ | ||
'use strict'; | ||
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var UglifyJS = require('uglify-js'); | ||
var xtend = require('xtend'); | ||
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module.exports = function scriptEqual(first, second, options) { | ||
[first, second].forEach(function(arg, i) { | ||
if (typeof arg !== 'string') { | ||
throw new TypeError( | ||
i === 0 ? 'First' : 'Second', | ||
' argument is not a string. Arguments must be: (string, string[, options])' | ||
); | ||
} | ||
}); | ||
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options = xtend(options, {fromString: true}); | ||
return UglifyJS.minify(first, options).code === UglifyJS.minify(second, options).code; | ||
}; |
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{ | ||
"name": "script-equal", | ||
"version": "0.0.0", | ||
"description": "Check if one JavaScript code is equivalent to another code", | ||
"repository": "shinnn/script-equal", | ||
"author": { | ||
"name": "Shinnosuke Watanabe", | ||
"url": "https://github.com/shinnn" | ||
}, | ||
"scripts": { | ||
"pretest": "eslint *.js & jscs *.js", | ||
"test": "node test.js | tap-spec", | ||
"coverage": "istanbul cover test.js", | ||
"coveralls": "${npm_package_scripts_coverage} && istanbul-coveralls" | ||
}, | ||
"licenses": [ | ||
{ | ||
"type": "MIT", | ||
"url": "https://github.com/shinnn/script-equal/blob/master/LICENSE" | ||
} | ||
], | ||
"files": [ | ||
"index.js", | ||
"LICENSE" | ||
], | ||
"keywords": [ | ||
"code", | ||
"parse", | ||
"compare", | ||
"comparison", | ||
"equal", | ||
"equivalent", | ||
"script", | ||
"js", | ||
"javascript", | ||
"uglify", | ||
"uglifyjs", | ||
"uglify-js" | ||
], | ||
"dependencies": { | ||
"uglify-js": "^2.4.15", | ||
"xtend": "^4.0.0" | ||
}, | ||
"devDependencies": { | ||
"eslint": "^0.9.2", | ||
"istanbul": "^0.3.2", | ||
"istanbul-coveralls": "^1.0.1", | ||
"jscs": "^1.7.3", | ||
"tap-spec": "^2.1.0", | ||
"tape": "^3.0.3" | ||
}, | ||
"jscsConfig": { | ||
"preset": "google", | ||
"maximumLineLength": 98 | ||
} | ||
} |
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'use strict'; | ||
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var scriptEqual = require('./'); | ||
var test = require('tape'); | ||
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test('scriptEqual()', function(t) { | ||
t.plan(7); | ||
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t.strictEqual( | ||
scriptEqual( | ||
'function w() {};\n(function() {\r\nvar d =2;var arr={e:0, f:[\'\', {}]}})();', | ||
'(function() {\nvar w=1+ 1*"1",a = {f: ["", {}], e: 0};})(); function w() {}' | ||
), | ||
true, | ||
'should return boolean if the first script is equivalent to the second.' | ||
); | ||
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t.strictEqual( | ||
scriptEqual( | ||
'a={};a[\'b\']=1;', | ||
'a={};a.b=1;', | ||
{compress: {properties: false}} | ||
), | ||
false, | ||
'should support `compress` option.' | ||
); | ||
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t.strictEqual( | ||
scriptEqual( | ||
'(function(a) {a=1})(this)', | ||
'(function(b) {b=1})(this)', | ||
{mangle: false} | ||
), | ||
false, | ||
'should support `mangle` option.' | ||
); | ||
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t.strictEqual( | ||
scriptEqual('', ' ', false), | ||
true, | ||
'should run completely even if the third argument is falsy.' | ||
); | ||
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t.throws( | ||
scriptEqual.bind(null, [''], '', {}), /TypeError.*First/, | ||
'should throw a type error when the first argument is not a string.' | ||
); | ||
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t.throws( | ||
scriptEqual.bind(null, '', 1), /TypeError.*Second/, | ||
'should throw a type error when the second argument is not a string.' | ||
); | ||
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t.throws( | ||
scriptEqual.bind(null), /TypeError.*First/, | ||
'should throw a type error when it takes no arguments.' | ||
); | ||
}); |