json.js

steal.then(function() {
	(function() {
		var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
			isArray = function( arr ) {
				return Object.prototype.toString.call(arr) === "[object Array]"
			}


			JSONparse = function( text, reviver ) {

				var j;

				function walk(holder, key) {
					var k, v, value = holder[key];
					if ( value && typeof value === 'object' ) {
						for ( k in value ) {
							if ( Object.hasOwnProperty.call(value, k) ) {
								v = walk(value, k);
								if ( v !== undefined ) {
									value[k] = v;
								} else {
									delete value[k];
								}
							}
						}
					}
					return reviver.call(holder, key, value);
				}

				cx.lastIndex = 0;
				if ( cx.test(text) ) {
					text = text.replace(cx, function( a ) {
						return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
					});
				}
				if (/^[\],:{}\s]*$/.
				test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@').
				replace(/["'][^"\\\n\r]*["']|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']').
				replace(/(?:^|:|,)(?:\s*\[)+/g, '')) ) {


					j = eval('(' + text + ')');

					// In the optional fourth stage, we recursively walk the new structure, passing
					// each name/value pair to a reviver function for possible transformation.
					return typeof reviver === 'function' ? walk({
						'': j
					}, '') : j;
				}

				// If the text is not JSON parseable, then a SyntaxError is thrown.
				throw new SyntaxError('JSONparse');
			};


		var toIntegersAtLease = function( n )
		// Format integers to have at least two digits.
		{
			return n < 10 ? '0' + n : n;
		}

		Date.prototype.toJSON = function( date )
		// Yes, it polutes the Date namespace, but we'll allow it here, as
		// it's damned usefull.
		{
			return this.getUTCFullYear() + '-' + toIntegersAtLease(this.getUTCMonth()) + '-' + toIntegersAtLease(this.getUTCDate());
		};

		var escapeable = /["\\\x00-\x1f\x7f-\x9f]/g;
		var meta = { // table of character substitutions
			'\b': '\\b',
			'\t': '\\t',
			'\n': '\\n',
			'\f': '\\f',
			'\r': '\\r',
			'"': '\\"',
			'\\': '\\\\'
		};

		var quoteString = function( string )
		// Places quotes around a string, inteligently.
		// If the string contains no control characters, no quote characters, and no
		// backslash characters, then we can safely slap some quotes around it.
		// Otherwise we must also replace the offending characters with safe escape
		// sequences.
		{
			if ( escapeable.test(string) ) {
				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 vtoJSON = null;
		var steal = steal;
		vtoJSON = function( o, compact ) {
			var type = typeof(o), ret;

			if ( type == "undefined" ) return "undefined";
			else if ( type == "number" || type == "boolean" ) return o + "";
			else if ( o === null ) return "null";

			// Is it a string?
			if ( type == "string" ) {
				return quoteString(o);
			}

			// Does it have a .toJSON function?
			if ( type == "object" && typeof o.toJSON == "function" ) return o.toJSON(compact);

			// Is it an array?
			if ( isArray(o) ) {
				ret = [];
				for ( var i = 0; i < o.length; i++ ) {
					ret.push(vtoJSON(o[i], compact));
				}
				if ( compact ) return "[" + ret.join(",") + "]";
				else return "[" + ret.join(", ") + "]";
			}

			// If it's a function, we have to warn somebody!
			if ( type == "function" ) {
				throw new TypeError("Unable to convert object of type 'function' to json.");
			}

			// It's probably an object, then.
			ret = [];
			for ( var k in o ) {
				var name;
				type = typeof(k);

				if ( type == "number" ) name = '"' + k + '"';
				else if ( type == "string" ) name = quoteString(k);
				else continue; //skip non-string or number keys
				var val = vtoJSON(o[k], compact);
				if ( typeof(val) != "string" ) {
					// skip non-serializable values
					continue;
				}

				if ( compact ) ret.push(name + ":" + val);
				else ret.push(name + ": " + val);
			}
			return "{" + ret.join(", ") + "}";
		};
		toJSON = vtoJSON;


	})();
})