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+/*
+ * jQuery JSON Plugin
+ * version: 2.1 (2009-08-14)
+ *
+ * This document is licensed as free software under the terms of the
+ * MIT License: http://www.opensource.org/licenses/mit-license.php
+ *
+ * Brantley Harris wrote this plugin. It is based somewhat on the JSON.org
+ * website's http://www.json.org/json2.js, which proclaims:
+ * "NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.", a sentiment that
+ * I uphold.
+ *
+ * It is also influenced heavily by MochiKit's serializeJSON, which is
+ * copyrighted 2005 by Bob Ippolito.
+ *
+ * @see http://code.google.com/p/jquery-json/
+ */
+
+(function($) {
+ /** jQuery.toJSON( json-serializble )
+ Converts the given argument into a JSON respresentation.
+
+ If an object has a "toJSON" function, that will be used to get the representation.
+ Non-integer/string keys are skipped in the object, as are keys that point to a function.
+
+ json-serializble:
+ The *thing* to be converted.
+ **/
+ $.toJSON = function(o)
+ {
+ if (typeof(JSON) == 'object' && JSON.stringify)
+ return JSON.stringify(o);
+
+ var type = typeof(o);
+
+ if (o === null)
+ return "null";
+
+ if (type == "undefined")
+ return undefined;
+
+ if (type == "number" || type == "boolean")
+ return o + "";
+
+ if (type == "string")
+ return $.quoteString(o);
+
+ if (type == 'object')
+ {
+ if (typeof o.toJSON == "function")
+ return $.toJSON( o.toJSON() );
+
+ if (o.constructor === Date)
+ {
+ var month = o.getUTCMonth() + 1;
+ if (month < 10) month = '0' + month;
+
+ var day = o.getUTCDate();
+ if (day < 10) day = '0' + day;
+
+ var year = o.getUTCFullYear();
+
+ var hours = o.getUTCHours();
+ if (hours < 10) hours = '0' + hours;
+
+ var minutes = o.getUTCMinutes();
+ if (minutes < 10) minutes = '0' + minutes;
+
+ var seconds = o.getUTCSeconds();
+ if (seconds < 10) seconds = '0' + seconds;
+
+ var milli = o.getUTCMilliseconds();
+ if (milli < 100) milli = '0' + milli;
+ if (milli < 10) milli = '0' + milli;
+
+ return '"' + year + '-' + month + '-' + day + 'T' +
+ hours + ':' + minutes + ':' + seconds +
+ '.' + milli + 'Z"';
+ }
+
+ if (o.constructor === Array)
+ {
+ var ret = [];
+ for (var i = 0; i < o.length; i++)
+ ret.push( $.toJSON(o[i]) || "null" );
+
+ return "[" + ret.join(",") + "]";
+ }
+
+ var pairs = [];
+ for (var k in o) {
+ var name;
+ var type = typeof k;
+
+ if (type == "number")
+ name = '"' + k + '"';
+ else if (type == "string")
+ name = $.quoteString(k);
+ else
+ continue; //skip non-string or number keys
+
+ if (typeof o[k] == "function")
+ continue; //skip pairs where the value is a function.
+
+ var val = $.toJSON(o[k]);
+
+ pairs.push(name + ":" + val);
+ }
+
+ return "{" + pairs.join(", ") + "}";
+ }
+ };
+
+ /** jQuery.evalJSON(src)
+ Evaluates a given piece of json source.
+ **/
+ $.evalJSON = function(src)
+ {
+ if (typeof(JSON) == 'object' && JSON.parse)
+ return JSON.parse(src);
+ return eval("(" + src + ")");
+ };
+
+ /** jQuery.secureEvalJSON(src)
+ Evals JSON in a way that is *more* secure.
+ **/
+ $.secureEvalJSON = function(src)
+ {
+ if (typeof(JSON) == 'object' && JSON.parse)
+ return JSON.parse(src);
+
+ var filtered = src;
+ filtered = filtered.replace(/\\["\\\/bfnrtu]/g, '@');
+ filtered = filtered.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']');
+ filtered = filtered.replace(/(?:^|:|,)(?:\s*\[)+/g, '');
+
+ if (/^[\],:{}\s]*$/.test(filtered))
+ return eval("(" + src + ")");
+ else
+ throw new SyntaxError("Error parsing JSON, source is not valid.");
+ };
+
+ /** jQuery.quoteString(string)
+ Returns a string-repr of a string, escaping quotes intelligently.
+ Mostly a support function for toJSON.
+
+ Examples:
+ >>> jQuery.quoteString("apple")
+ "apple"
+
+ >>> jQuery.quoteString('"Where are we going?", she asked.')
+ "\"Where are we going?\", she asked."
+ **/
+ $.quoteString = function(string)
+ {
+ if (string.match(_escapeable))
+ {
+ return '"' + string.replace(_escapeable, function (a)
+ {
+ var c = _meta[a];
+ if (typeof c === 'string') return c;
+ c = a.charCodeAt();
+ return '\\u00' + Math.floor(c / 16).toString(16) + (c % 16).toString(16);
+ }) + '"';
+ }
+ return '"' + string + '"';
+ };
+
+ var _escapeable = /["\\\x00-\x1f\x7f-\x9f]/g;
+
+ var _meta = {
+ '\b': '\\b',
+ '\t': '\\t',
+ '\n': '\\n',
+ '\f': '\\f',
+ '\r': '\\r',
+ '"' : '\\"',
+ '\\': '\\\\'
+ };
+})(jQuery);