2 * jQuery JSON plugin 2.4.0
4 * @author Brantley Harris, 2009-2011
5 * @author Timo Tijhof, 2011-2012
6 * @source This plugin is heavily influenced by MochiKit's serializeJSON, which is
7 * copyrighted 2005 by Bob Ippolito.
8 * @source Brantley Harris wrote this plugin. It is based somewhat on the JSON.org
9 * website's http://www.json.org/json2.js, which proclaims:
10 * "NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.", a sentiment that
12 * @license MIT License <http://www.opensource.org/licenses/mit-license.php>
17 var escape = /["\\\x00-\x1f\x7f-\x9f]/g,
27 hasOwn = Object.prototype.hasOwnProperty;
31 * Converts the given argument into a JSON representation.
33 * @param o {Mixed} The json-serializable *thing* to be converted
35 * If an object has a toJSON prototype, that will be used to get the representation.
36 * Non-integer/string keys are skipped in the object, as are keys that point to a
40 $.toJSON = typeof JSON === 'object' && JSON.stringify ? JSON.stringify : function (o) {
45 var pairs, k, name, val,
48 if (type === 'undefined') {
52 // Also covers instantiated Number and Boolean objects,
53 // which are typeof 'object' but thanks to $.type, we
54 // catch them here. I don't know whether it is right
55 // or wrong that instantiated primitives are not
56 // exported to JSON as an {"object":..}.
57 // We choose this path because that's what the browsers did.
58 if (type === 'number' || type === 'boolean') {
61 if (type === 'string') {
62 return $.quoteString(o);
64 if (typeof o.toJSON === 'function') {
65 return $.toJSON(o.toJSON());
67 if (type === 'date') {
68 var month = o.getUTCMonth() + 1,
70 year = o.getUTCFullYear(),
71 hours = o.getUTCHours(),
72 minutes = o.getUTCMinutes(),
73 seconds = o.getUTCSeconds(),
74 milli = o.getUTCMilliseconds();
86 minutes = '0' + minutes;
89 seconds = '0' + seconds;
97 return '"' + year + '-' + month + '-' + day + 'T' +
98 hours + ':' + minutes + ':' + seconds +
105 for (k = 0; k < o.length; k++) {
106 pairs.push($.toJSON(o[k]) || 'null');
108 return '[' + pairs.join(',') + ']';
111 // Any other object (plain object, RegExp, ..)
112 // Need to do typeof instead of $.type, because we also
113 // want to catch non-plain objects.
114 if (typeof o === 'object') {
116 // Only include own properties,
117 // Filter out inherited prototypes
118 if (hasOwn.call(o, k)) {
119 // Keys must be numerical or string. Skip others
121 if (type === 'number') {
122 name = '"' + k + '"';
123 } else if (type === 'string') {
124 name = $.quoteString(k);
130 // Invalid values like these return undefined
131 // from toJSON, however those object members
132 // shouldn't be included in the JSON string at all.
133 if (type !== 'function' && type !== 'undefined') {
134 val = $.toJSON(o[k]);
135 pairs.push(name + ':' + val);
139 return '{' + pairs.join(',') + '}';
145 * Evaluates a given json string.
147 * @param str {String}
149 $.evalJSON = typeof JSON === 'object' && JSON.parse ? JSON.parse : function (str) {
150 /*jshint evil: true */
151 return eval('(' + str + ')');
155 * jQuery.secureEvalJSON
156 * Evals JSON in a way that is *more* secure.
158 * @param str {String}
160 $.secureEvalJSON = typeof JSON === 'object' && JSON.parse ? JSON.parse : function (str) {
163 .replace(/\\["\\\/bfnrtu]/g, '@')
164 .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
165 .replace(/(?:^|:|,)(?:\s*\[)+/g, '');
167 if (/^[\],:{}\s]*$/.test(filtered)) {
168 /*jshint evil: true */
169 return eval('(' + str + ')');
171 throw new SyntaxError('Error parsing JSON, source is not valid.');
176 * Returns a string-repr of a string, escaping quotes intelligently.
177 * Mostly a support function for toJSON.
179 * >>> jQuery.quoteString('apple')
182 * >>> jQuery.quoteString('"Where are we going?", she asked.')
183 * "\"Where are we going?\", she asked."
185 $.quoteString = function (str) {
186 if (str.match(escape)) {
187 return '"' + str.replace(escape, function (a) {
189 if (typeof c === 'string') {
193 return '\\u00' + Math.floor(c / 16).toString(16) + (c % 16).toString(16);
196 return '"' + str + '"';