gistfile1.js

if (!this.JSON) this.JSON = function () {
    function f(n) {
        return n < 10 ? '0' + n : n;
    }
    Date.prototype.toJSON = function () {
        return this.getUTCFullYear() + '-' + f(this.getUTCMonth() + 1) + '-' + f(this.getUTCDate()) + 'T' + f(this.getUTCHours()) + ':' + f(this.getUTCMinutes()) + ':' + f(this.getUTCSeconds()) + 'Z';
    };
    var m = {
        '\b': '\\b',
        '\t': '\\t',
        '\n': '\\n',
        '\f': '\\f',
        '\r': '\\r',
        '"': '\\"',
        '\\': '\\\\'
    };

    function stringify(value, whitelist) {
        var a, i, k, l, v;
        switch (typeof value) {
        case 'string':
            return (new RegExp('[\x00-\x1f\\\\"]')).test(value) ? '"' + value.replace(/[\x00-\x1f\\"]/g, function (a) {
                var c = m[a];
                if (c) return c;
                c = a.charCodeAt();
                return '\\u00' + Math.floor(c / 16).toString(16) + (c % 16).toString(16);
            }) + '"' : '"' + value + '"';
        case 'number':
            return isFinite(value) ? String(value) : 'null';
        case 'boolean':
            return String(value);
        case 'null':
            return 'null';
        case 'object':
            if (DOM.isNode(value)) return null;
            if (!value) return 'null';
            if (typeof value.toJSON === 'function') return stringify(value.toJSON());
            a = [];
            if (typeof value.length === 'number' && !(propertyIsEnumerable(value, 'length'))) {
                l = value.length;
                for (i = 0; i < l; i += 1) a.push(stringify(value[i], whitelist) || 'null');
                return '[' + a.join(',') + ']';
            }
            if (whitelist) {
                l = whitelist.length;
                for (i = 0; i < l; i += 1) {
                    k = whitelist[i];
                    if (typeof k === 'string') {
                        v = stringify(value[k], whitelist);
                        if (v) a.push(stringify(k) + ':' + v);
                    }
                }
            } else for (k in value) if (typeof k === 'string') {
                v = stringify(value[k], whitelist);
                if (v) a.push(stringify(k) + ':' + v);
            }
            return '{' + a.join(',') + '}';
        }
    }
    return {
        stringify: stringify,
        parse: function (text, filter) {
            var j;

            function walk(k, v) {
                var i, n;
                if (v && typeof v === 'object') for (i in v) if (Object.prototype.hasOwnProperty.apply(v, [i])) {
                    n = walk(i, v[i]);
                    if (n !== undefined) v[i] = n;
                }
                return filter(k, v);
            }
            if (text && /^[\],:{}\s]*$/.test(text.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(:?[eE][+\-]?\d+)?/g, ']').replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
                j = eval('(' + text + ')');
                return typeof filter === 'function' ? walk('', j) : j;
            }
            throw new SyntaxError('decodeJSON');
        }
    };
}();