| | 1 | /*! JSON.minify() |
| | 2 | v0.1 (c) Kyle Simpson |
| | 3 | MIT License |
| | 4 | */ |
| | 5 | /** |
| | 6 | * @name minify.json.js |
| | 7 | * @author Kei Funagayama <kei.topaz@gmail.com |
| | 8 | * @overview JSON.minify |
| | 9 | */ |
| | 10 | |
| | 11 | /** |
| | 12 | * @namespace JSON |
| | 13 | */ |
| | 14 | (function(global){ |
| | 15 | 'use strict'; |
| | 16 | |
| | 17 | /** |
| | 18 | * @function |
| | 19 | * @memberof JSON |
| | 20 | * @param {Object} Transformed data. format) json-like |
| | 21 | * @return {String} |
| | 22 | * |
| | 23 | * @example |
| | 24 | * var json = { // hoge |
| | 25 | * "foo": "bar",// this is cool |
| | 26 | * "bar": [ |
| | 27 | * "baz", "bum", "zam" // this is cool |
| | 28 | * ] |
| | 29 | * } // hoge |
| | 30 | * |
| | 31 | */ |
| | 32 | var minify = function (json) { |
| | 33 | |
| | 34 | var tokenizer = /"|(\/\*)|(\*\/)|(\/\/)|\n|\r/g, |
| | 35 | in_string = false, |
| | 36 | in_multiline_comment = false, |
| | 37 | in_singleline_comment = false, |
| | 38 | tmp, tmp2, new_str = [], ns = 0, from = 0, lc, rc |
| | 39 | ; |
| | 40 | |
| | 41 | tokenizer.lastIndex = 0; |
| | 42 | |
| | 43 | while ( tmp = tokenizer.exec(json) ) { |
| | 44 | lc = RegExp.leftContext; |
| | 45 | rc = RegExp.rightContext; |
| | 46 | if (!in_multiline_comment && !in_singleline_comment) { |
| | 47 | tmp2 = lc.substring(from); |
| | 48 | if (!in_string) { |
| | 49 | tmp2 = tmp2.replace(/(\n|\r|\s)*/g,""); |
| | 50 | } |
| | 51 | new_str[ns++] = tmp2; |
| | 52 | } |
| | 53 | from = tokenizer.lastIndex; |
| | 54 | |
| | 55 | if (tmp[0] === "\"" && !in_multiline_comment && !in_singleline_comment) { |
| | 56 | tmp2 = lc.match(/(\\)*$/); |
| | 57 | if (!in_string || !tmp2 || (tmp2[0].length % 2) === 0) { // start of string with ", or unescaped " character found to end string |
| | 58 | in_string = !in_string; |
| | 59 | } |
| | 60 | from--; // include " character in next catch |
| | 61 | rc = json.substring(from); |
| | 62 | } |
| | 63 | else if (tmp[0] === "/*" && !in_string && !in_multiline_comment && !in_singleline_comment) { |
| | 64 | in_multiline_comment = true; |
| | 65 | } |
| | 66 | else if (tmp[0] === "*/" && !in_string && in_multiline_comment && !in_singleline_comment) { |
| | 67 | in_multiline_comment = false; |
| | 68 | } |
| | 69 | else if (tmp[0] === "//" && !in_string && !in_multiline_comment && !in_singleline_comment) { |
| | 70 | in_singleline_comment = true; |
| | 71 | } |
| | 72 | else if ((tmp[0] === "\n" || tmp[0] === "\r") && !in_string && !in_multiline_comment && in_singleline_comment) { |
| | 73 | in_singleline_comment = false; |
| | 74 | } |
| | 75 | else if (!in_multiline_comment && !in_singleline_comment && !(/\n|\r|\s/.test(tmp[0]))) { |
| | 76 | new_str[ns++] = tmp[0]; |
| | 77 | } |
| | 78 | } |
| | 79 | new_str[ns++] = rc; |
| | 80 | return new_str.join(""); |
| | 81 | }; |
| | 82 | |
| | 83 | if (typeof module !== 'undefined' && module.exports) { |
| | 84 | // node |
| | 85 | module.exports = minify; |
| | 86 | JSON.minify = minify; |
| | 87 | } else { |
| | 88 | // others, export global |
| | 89 | if (typeof global.JSON === "undefined" || !global.JSON) { |
| | 90 | global.JSON = {}; |
| | 91 | } |
| | 92 | global.JSON.minify = minify; |
| | 93 | } |
| | 94 | })(this); |
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