include/javascript/tiny_mce/classes/util/JSON.js

   1 /**
   2  * JSON.js
   3  *
   4  * Copyright 2009, Moxiecode Systems AB
   5  * Released under LGPL License.
   6  *
   7  * License: http://tinymce.moxiecode.com/license
   8  * Contributing: http://tinymce.moxiecode.com/contributing
   9  */
  10
  11 (function() {
  12         function serialize(o, quote) {
  13                 var i, v, t;
  14
  15                 quote = quote || '"';
  16
  17                 if (o == null)
  18                         return 'null';
  19
  20                 t = typeof o;
  21
  22                 if (t == 'string') {
  23                         v = '\bb\tt\nn\ff\rr\""\'\'\\\\';
  24
  25                         return quote + o.replace(/([\u0080-\uFFFF\x00-\x1f\"\'\\])/g, function(a, b) {
  26                                 // Make sure single quotes never get encoded inside double quotes for JSON compatibility
  27                                 if (quote === '"' && a === "'")
  28                                         return a;
  29
  30                                 i = v.indexOf(b);
  31
  32                                 if (i + 1)
  33                                         return '\\' + v.charAt(i + 1);
  34
  35                                 a = b.charCodeAt().toString(16);
  36
  37                                 return '\\u' + '0000'.substring(a.length) + a;
  38                         }) + quote;
  39                 }
  40
  41                 if (t == 'object') {
  42                         if (o.hasOwnProperty && o instanceof Array) {
  43                                         for (i=0, v = '['; i<o.length; i++)
  44                                                 v += (i > 0 ? ',' : '') + serialize(o[i], quote);
  45
  46                                         return v + ']';
  47                                 }
  48
  49                                 v = '{';
  50
  51                                 for (i in o)
  52                                         v += typeof o[i] != 'function' ? (v.length > 1 ? ',' + quote : quote) + i + quote +':' + serialize(o[i], quote) : '';
  53
  54                                 return v + '}';
  55                 }
  56
  57                 return '' + o;
  58         };
  59
  60         /**
  61          * JSON parser and serializer class.
  62          *
  63          * @class tinymce.util.JSON
  64          * @static
  65          * @example
  66          * // JSON parse a string into an object
  67          * var obj = tinymce.util.JSON.parse(somestring);
  68          *
  69          * // JSON serialize a object into an string
  70          * var str = tinymce.util.JSON.serialize(obj);
  71          */
  72         tinymce.util.JSON = {
  73                 /**
  74                  * Serializes the specified object as a JSON string.
  75                  *
  76                  * @method serialize
  77                  * @param {Object} obj Object to serialize as a JSON string.
  78                  * @param {String} quote Optional quote string defaults to ".
  79                  * @return {string} JSON string serialized from input.
  80                  */
  81                 serialize: serialize,
  82
  83                 /**
  84                  * Unserializes/parses the specified JSON string into a object.
  85                  *
  86                  * @method parse
  87                  * @param {string} s JSON String to parse into a JavaScript object.
  88                  * @return {Object} Object from input JSON string or undefined if it failed.
  89                  */
  90                 parse: function(s) {
  91                         try {
  92                                 return eval('(' + s + ')');
  93                         } catch (ex) {
  94                                 // Ignore
  95                         }
  96                 }
  97
  98                 /**#@-*/
  99         };
 100 })();