js/jste/json2.js

/*
    http://www.JSON.org/json2.js
    2008-11-19

    Public Domain.

    NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.

    See http://www.JSON.org/js.html

    This file creates a global JSON object containing two methods: stringify
    and parse.

        JSON.stringify(value, replacer, space)
            value       any JavaScript value, usually an object or array.

            replacer    an optional parameter that determines how object
                        values are stringified for objects. It can be a
                        function or an array of strings.

            space       an optional parameter that specifies the indentation
                        of nested structures. If it is omitted, the text will
                        be packed without extra whitespace. If it is a number,
                        it will specify the number of spaces to indent at each
                        level. If it is a string (such as '\t' or '&nbsp;'),
                        it contains the characters used to indent at each level.

            This method produces a JSON text from a JavaScript value.

            When an object value is found, if the object contains a toJSON
            method, its toJSON method will be called and the result will be
            stringified. A toJSON method does not serialize: it returns the
            value represented by the name/value pair that should be serialized,
            or undefined if nothing should be serialized. The toJSON method
            will be passed the key associated with the value, and this will be
            bound to the object holding the key.

            For example, this would serialize Dates as ISO strings.

                Date.prototype.toJSON = function (key) {
                    function f(n) {
                        // Format integers to have at least two digits.
                        return n < 10 ? '0' + n : n;
                    }

                    return this.getUTCFullYear()   + '-' +
                         f(this.getUTCMonth() + 1) + '-' +
                         f(this.getUTCDate())      + 'T' +
                         f(this.getUTCHours())     + ':' +
                         f(this.getUTCMinutes())   + ':' +
                         f(this.getUTCSeconds())   + 'Z';
                };

            You can provide an optional replacer method. It will be passed the
            key and value of each member, with this bound to the containing
            object. The value that is returned from your method will be
            serialized. If your method returns undefined, then the member will
            be excluded from the serialization.

            If the replacer parameter is an array of strings, then it will be
            used to select the members to be serialized. It filters the results
            such that only members with keys listed in the replacer array are
            stringified.

            Values that do not have JSON representations, such as undefined or
            functions, will not be serialized. Such values in objects will be
            dropped; in arrays they will be replaced with null. You can use
            a replacer function to replace those with JSON values.
            JSON.stringify(undefined) returns undefined.

            The optional space parameter produces a stringification of the
            value that is filled with line breaks and indentation to make it
            easier to read.

            If the space parameter is a non-empty string, then that string will
            be used for indentation. If the space parameter is a number, then
            the indentation will be that many spaces.

            Example:

            text = JSON.stringify(['e', {pluribus: 'unum'}]);
            // text is '["e",{"pluribus":"unum"}]'


            text = JSON.stringify(['e', {pluribus: 'unum'}], null, '\t');
            // text is '[\n\t"e",\n\t{\n\t\t"pluribus": "unum"\n\t}\n]'

            text = JSON.stringify([new Date()], function (key, value) {
                return this[key] instanceof Date ?
                    'Date(' + this[key] + ')' : value;
            });
            // text is '["Date(---current time---)"]'


        JSON.parse(text, reviver)
            This method parses a JSON text to produce an object or array.
            It can throw a SyntaxError exception.

            The optional reviver parameter is a function that can filter and
            transform the results. It receives each of the keys and values,
            and its return value is used instead of the original value.
            If it returns what it received, then the structure is not modified.
            If it returns undefined then the member is deleted.

            Example:

            // Parse the text. Values that look like ISO date strings will
            // be converted to Date objects.

            myData = JSON.parse(text, function (key, value) {
                var a;
                if (typeof value === 'string') {
                    a =
/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value);
                    if (a) {
                        return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4],
                            +a[5], +a[6]));
                    }
                }
                return value;
            });

            myData = JSON.parse('["Date(09/09/2001)"]', function (key, value) {
                var d;
                if (typeof value === 'string' &&
                        value.slice(0, 5) === 'Date(' &&
                        value.slice(-1) === ')') {
                    d = new Date(value.slice(5, -1));
                    if (d) {
                        return d;
                    }
                }
                return value;
            });


    This is a reference implementation. You are free to copy, modify, or
    redistribute.

    This code should be minified before deployment.
    See http://javascript.crockford.com/jsmin.html

    USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO
    NOT CONTROL.
*/

/*jslint evil: true */

/*global JSON */

/*members "", "\b", "\t", "\n", "\f", "\r", "\"", JSON, "\\", apply,
    call, charCodeAt, getUTCDate, getUTCFullYear, getUTCHours,
    getUTCMinutes, getUTCMonth, getUTCSeconds, hasOwnProperty, join,
    lastIndex, length, parse, prototype, push, replace, slice, stringify,
    test, toJSON, toString, valueOf
*/

// Create a JSON object only if one does not already exist. We create the
// methods in a closure to avoid creating global variables.

if (!this.JSON) {
    JSON = {};
}
(function () {

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

    if (typeof Date.prototype.toJSON !== 'function') {

        Date.prototype.toJSON = function (key) {

            return this.getUTCFullYear()   + '-' +
                 f(this.getUTCMonth() + 1) + '-' +
                 f(this.getUTCDate())      + 'T' +
                 f(this.getUTCHours())     + ':' +
                 f(this.getUTCMinutes())   + ':' +
                 f(this.getUTCSeconds())   + 'Z';
        };

        String.prototype.toJSON =
        Number.prototype.toJSON =
        Boolean.prototype.toJSON = function (key) {
            return this.valueOf();
        };
    }

    var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
        escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
        gap,
        indent,
        meta = {    // table of character substitutions
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"' : '\\"',
            '\\': '\\\\'
        },
        rep;


    function quote(string) {

// 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.

        escapable.lastIndex = 0;
        return escapable.test(string) ?
            '"' + string.replace(escapable, function (a) {
                var c = meta[a];
                return typeof c === 'string' ? c :
                    '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
            }) + '"' :
            '"' + string + '"';
    }


    function str(key, holder) {

// Produce a string from holder[key].

        var i,          // The loop counter.
            k,          // The member key.
            v,          // The member value.
            length,
            mind = gap,
            partial,
            value = holder[key];

// If the value has a toJSON method, call it to obtain a replacement value.

        if (value && typeof value === 'object' &&
                typeof value.toJSON === 'function') {
            value = value.toJSON(key);
        }

// If we were called with a replacer function, then call the replacer to
// obtain a replacement value.

        if (typeof rep === 'function') {
            value = rep.call(holder, key, value);
        }

// What happens next depends on the value's type.

        switch (typeof value) {
        case 'string':
            return quote(value);

        case 'number':

// JSON numbers must be finite. Encode non-finite numbers as null.

            return isFinite(value) ? String(value) : 'null';

        case 'boolean':
        case 'null':

// If the value is a boolean or null, convert it to a string. Note:
// typeof null does not produce 'null'. The case is included here in
// the remote chance that this gets fixed someday.

            return String(value);

// If the type is 'object', we might be dealing with an object or an array or
// null.

        case 'object':

// Due to a specification blunder in ECMAScript, typeof null is 'object',
// so watch out for that case.

            if (!value) {
                return 'null';
            }

// Make an array to hold the partial results of stringifying this object value.

            gap += indent;
            partial = [];

// Is the value an array?

            if (Object.prototype.toString.apply(value) === '[object Array]') {

// The value is an array. Stringify every element. Use null as a placeholder
// for non-JSON values.

                length = value.length;
                for (i = 0; i < length; i += 1) {
                    partial[i] = str(i, value) || 'null';
                }

// Join all of the elements together, separated with commas, and wrap them in
// brackets.

                v = partial.length === 0 ? '[]' :
                    gap ? '[\n' + gap +
                            partial.join(',\n' + gap) + '\n' +
                                mind + ']' :
                          '[' + partial.join(',') + ']';
                gap = mind;
                return v;
            }

// If the replacer is an array, use it to select the members to be stringified.

            if (rep && typeof rep === 'object') {
                length = rep.length;
                for (i = 0; i < length; i += 1) {
                    k = rep[i];
                    if (typeof k === 'string') {
                        v = str(k, value);
                        if (v) {
                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
                        }
                    }
                }
            } else {

// Otherwise, iterate through all of the keys in the object.

                for (k in value) {
                    if (Object.hasOwnProperty.call(value, k)) {
                        v = str(k, value);
                        if (v) {
                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
                        }
                    }
                }
            }

// Join all of the member texts together, separated with commas,
// and wrap them in braces.

            v = partial.length === 0 ? '{}' :
                gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' +
                        mind + '}' : '{' + partial.join(',') + '}';
            gap = mind;
            return v;
        }
    }

// If the JSON object does not yet have a stringify method, give it one.

    if (typeof JSON.stringify !== 'function') {
        JSON.stringify = function (value, replacer, space) {

// The stringify method takes a value and an optional replacer, and an optional
// space parameter, and returns a JSON text. The replacer can be a function
// that can replace values, or an array of strings that will select the keys.
// A default replacer method can be provided. Use of the space parameter can
// produce text that is more easily readable.

            var i;
            gap = '';
            indent = '';

// If the space parameter is a number, make an indent string containing that
// many spaces.

            if (typeof space === 'number') {
                for (i = 0; i < space; i += 1) {
                    indent += ' ';
                }

// If the space parameter is a string, it will be used as the indent string.

            } else if (typeof space === 'string') {
                indent = space;
            }

// If there is a replacer, it must be a function or an array.
// Otherwise, throw an error.

            rep = replacer;
            if (replacer && typeof replacer !== 'function' &&
                    (typeof replacer !== 'object' ||
                     typeof replacer.length !== 'number')) {
                throw new Error('JSON.stringify');
            }

// Make a fake root object containing our value under the key of ''.
// Return the result of stringifying the value.

            return str('', {'': value});
        };
    }


// If the JSON object does not yet have a parse method, give it one.

    if (typeof JSON.parse !== 'function') {
        JSON.parse = function (text, reviver) {

// The parse method takes a text and an optional reviver function, and returns
// a JavaScript value if the text is a valid JSON text.

            var j;

            function walk(holder, key) {

// The walk method is used to recursively walk the resulting structure so
// that modifications can be made.

                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);
            }


// Parsing happens in four stages. In the first stage, we replace certain
// Unicode characters with escape sequences. JavaScript handles many characters
// incorrectly, either silently deleting them, or treating them as line endings.

            cx.lastIndex = 0;
            if (cx.test(text)) {
                text = text.replace(cx, function (a) {
                    return '\\u' +
                        ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
                });
            }

// In the second stage, we run the text against regular expressions that look
// for non-JSON patterns. We are especially concerned with '()' and 'new'
// because they can cause invocation, and '=' because it can cause mutation.
// But just to be safe, we want to reject all unexpected forms.

// We split the second stage into 4 regexp operations in order to work around
// crippling inefficiencies in IE's and Safari's regexp engines. First we
// replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
// replace all simple value tokens with ']' characters. Third, we delete all
// open brackets that follow a colon or comma or that begin the text. Finally,
// we look to see that the remaining characters are only whitespace or ']' or
// ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.

            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, ''))) {

// In the third stage we use the eval function to compile the text into a
// JavaScript structure. The '{' operator is subject to a syntactic ambiguity
// in JavaScript: it can begin a block or an object literal. We wrap the text
// in parens to eliminate the ambiguity.

                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('JSON.parse');
        };
    }
})();
1	/*
2	http://www.JSON.org/json2.js
3	2008-11-19
4
5	Public Domain.
6
7	NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
8
9	See http://www.JSON.org/js.html
10
11	This file creates a global JSON object containing two methods: stringify
12	and parse.
13
14	JSON.stringify(value, replacer, space)
15	value any JavaScript value, usually an object or array.
16
17	replacer an optional parameter that determines how object
18	values are stringified for objects. It can be a
19	function or an array of strings.
20
21	space an optional parameter that specifies the indentation
22	of nested structures. If it is omitted, the text will
23	be packed without extra whitespace. If it is a number,
24	it will specify the number of spaces to indent at each
25	level. If it is a string (such as '\t' or ' '),
26	it contains the characters used to indent at each level.
27
28	This method produces a JSON text from a JavaScript value.
29
30	When an object value is found, if the object contains a toJSON
31	method, its toJSON method will be called and the result will be
32	stringified. A toJSON method does not serialize: it returns the
33	value represented by the name/value pair that should be serialized,
34	or undefined if nothing should be serialized. The toJSON method
35	will be passed the key associated with the value, and this will be
36	bound to the object holding the key.
37
38	For example, this would serialize Dates as ISO strings.
39
40	Date.prototype.toJSON = function (key) {
41	function f(n) {
42	// Format integers to have at least two digits.
43	return n < 10 ? '0' + n : n;
44	}
45
46	return this.getUTCFullYear() + '-' +
47	f(this.getUTCMonth() + 1) + '-' +
48	f(this.getUTCDate()) + 'T' +
49	f(this.getUTCHours()) + ':' +
50	f(this.getUTCMinutes()) + ':' +
51	f(this.getUTCSeconds()) + 'Z';
52	};
53
54	You can provide an optional replacer method. It will be passed the
55	key and value of each member, with this bound to the containing
56	object. The value that is returned from your method will be
57	serialized. If your method returns undefined, then the member will
58	be excluded from the serialization.
59
60	If the replacer parameter is an array of strings, then it will be
61	used to select the members to be serialized. It filters the results
62	such that only members with keys listed in the replacer array are
63	stringified.
64
65	Values that do not have JSON representations, such as undefined or
66	functions, will not be serialized. Such values in objects will be
67	dropped; in arrays they will be replaced with null. You can use
68	a replacer function to replace those with JSON values.
69	JSON.stringify(undefined) returns undefined.
70
71	The optional space parameter produces a stringification of the
72	value that is filled with line breaks and indentation to make it
73	easier to read.
74
75	If the space parameter is a non-empty string, then that string will
76	be used for indentation. If the space parameter is a number, then
77	the indentation will be that many spaces.
78
79	Example:
80
81	text = JSON.stringify(['e', {pluribus: 'unum'}]);
82	// text is '["e",{"pluribus":"unum"}]'
83
84
85	text = JSON.stringify(['e', {pluribus: 'unum'}], null, '\t');
86	// text is '[\n\t"e",\n\t{\n\t\t"pluribus": "unum"\n\t}\n]'
87
88	text = JSON.stringify([new Date()], function (key, value) {
89	return this[key] instanceof Date ?
90	'Date(' + this[key] + ')' : value;
91	});
92	// text is '["Date(---current time---)"]'
93
94
95	JSON.parse(text, reviver)
96	This method parses a JSON text to produce an object or array.
97	It can throw a SyntaxError exception.
98
99	The optional reviver parameter is a function that can filter and
100	transform the results. It receives each of the keys and values,
101	and its return value is used instead of the original value.
102	If it returns what it received, then the structure is not modified.
103	If it returns undefined then the member is deleted.
104
105	Example:
106
107	// Parse the text. Values that look like ISO date strings will
108	// be converted to Date objects.
109
110	myData = JSON.parse(text, function (key, value) {
111	var a;
112	if (typeof value === 'string') {
113	a =
114	/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value);
115	if (a) {
116	return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4],
117	+a[5], +a[6]));
118	}
119	}
120	return value;
121	});
122
123	myData = JSON.parse('["Date(09/09/2001)"]', function (key, value) {
124	var d;
125	if (typeof value === 'string' &&
126	value.slice(0, 5) === 'Date(' &&
127	value.slice(-1) === ')') {
128	d = new Date(value.slice(5, -1));
129	if (d) {
130	return d;
131	}
132	}
133	return value;
134	});
135
136
137	This is a reference implementation. You are free to copy, modify, or
138	redistribute.
139
140	This code should be minified before deployment.
141	See http://javascript.crockford.com/jsmin.html
142
143	USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO
144	NOT CONTROL.
145	*/
146
147	/jslint evil: true /
148
149	/global JSON /
150
151	/*members "", "\b", "\t", "\n", "\f", "\r", "\"", JSON, "\\", apply,
152	call, charCodeAt, getUTCDate, getUTCFullYear, getUTCHours,
153	getUTCMinutes, getUTCMonth, getUTCSeconds, hasOwnProperty, join,
154	lastIndex, length, parse, prototype, push, replace, slice, stringify,
155	test, toJSON, toString, valueOf
156	*/
157
158	// Create a JSON object only if one does not already exist. We create the
159	// methods in a closure to avoid creating global variables.
160
161	if (!this.JSON) {
162	JSON = {};
163	}
164	(function () {
165
166	function f(n) {
167	// Format integers to have at least two digits.
168	return n < 10 ? '0' + n : n;
169	}
170
171	if (typeof Date.prototype.toJSON !== 'function') {
172
173	Date.prototype.toJSON = function (key) {
174
175	return this.getUTCFullYear() + '-' +
176	f(this.getUTCMonth() + 1) + '-' +
177	f(this.getUTCDate()) + 'T' +
178	f(this.getUTCHours()) + ':' +
179	f(this.getUTCMinutes()) + ':' +
180	f(this.getUTCSeconds()) + 'Z';
181	};
182
183	String.prototype.toJSON =
184	Number.prototype.toJSON =
185	Boolean.prototype.toJSON = function (key) {
186	return this.valueOf();
187	};
188	}
189
190	var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
191	escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
192	gap,
193	indent,
194	meta = { // table of character substitutions
195	'\b': '\\b',
196	'\t': '\\t',
197	'\n': '\\n',
198	'\f': '\\f',
199	'\r': '\\r',
200	'"' : '\\"',
201	'\\': '\\\\'
202	},
203	rep;
204
205
206	function quote(string) {
207
208	// If the string contains no control characters, no quote characters, and no
209	// backslash characters, then we can safely slap some quotes around it.
210	// Otherwise we must also replace the offending characters with safe escape
211	// sequences.
212
213	escapable.lastIndex = 0;
214	return escapable.test(string) ?
215	'"' + string.replace(escapable, function (a) {
216	var c = meta[a];
217	return typeof c === 'string' ? c :
218	'\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
219	}) + '"' :
220	'"' + string + '"';
221	}
222
223
224	function str(key, holder) {
225
226	// Produce a string from holder[key].
227
228	var i, // The loop counter.
229	k, // The member key.
230	v, // The member value.
231	length,
232	mind = gap,
233	partial,
234	value = holder[key];
235
236	// If the value has a toJSON method, call it to obtain a replacement value.
237
238	if (value && typeof value === 'object' &&
239	typeof value.toJSON === 'function') {
240	value = value.toJSON(key);
241	}
242
243	// If we were called with a replacer function, then call the replacer to
244	// obtain a replacement value.
245
246	if (typeof rep === 'function') {
247	value = rep.call(holder, key, value);
248	}
249
250	// What happens next depends on the value's type.
251
252	switch (typeof value) {
253	case 'string':
254	return quote(value);
255
256	case 'number':
257
258	// JSON numbers must be finite. Encode non-finite numbers as null.
259
260	return isFinite(value) ? String(value) : 'null';
261
262	case 'boolean':
263	case 'null':
264
265	// If the value is a boolean or null, convert it to a string. Note:
266	// typeof null does not produce 'null'. The case is included here in
267	// the remote chance that this gets fixed someday.
268
269	return String(value);
270
271	// If the type is 'object', we might be dealing with an object or an array or
272	// null.
273
274	case 'object':
275
276	// Due to a specification blunder in ECMAScript, typeof null is 'object',
277	// so watch out for that case.
278
279	if (!value) {
280	return 'null';
281	}
282
283	// Make an array to hold the partial results of stringifying this object value.
284
285	gap += indent;
286	partial = [];
287
288	// Is the value an array?
289
290	if (Object.prototype.toString.apply(value) === '[object Array]') {
291
292	// The value is an array. Stringify every element. Use null as a placeholder
293	// for non-JSON values.
294
295	length = value.length;
296	for (i = 0; i < length; i += 1) {
297	partial[i] = str(i, value) \|\| 'null';
298	}
299
300	// Join all of the elements together, separated with commas, and wrap them in
301	// brackets.
302
303	v = partial.length === 0 ? '[]' :
304	gap ? '[\n' + gap +
305	partial.join(',\n' + gap) + '\n' +
306	mind + ']' :
307	'[' + partial.join(',') + ']';
308	gap = mind;
309	return v;
310	}
311
312	// If the replacer is an array, use it to select the members to be stringified.
313
314	if (rep && typeof rep === 'object') {
315	length = rep.length;
316	for (i = 0; i < length; i += 1) {
317	k = rep[i];
318	if (typeof k === 'string') {
319	v = str(k, value);
320	if (v) {
321	partial.push(quote(k) + (gap ? ': ' : ':') + v);
322	}
323	}
324	}
325	} else {
326
327	// Otherwise, iterate through all of the keys in the object.
328
329	for (k in value) {
330	if (Object.hasOwnProperty.call(value, k)) {
331	v = str(k, value);
332	if (v) {
333	partial.push(quote(k) + (gap ? ': ' : ':') + v);
334	}
335	}
336	}
337	}
338
339	// Join all of the member texts together, separated with commas,
340	// and wrap them in braces.
341
342	v = partial.length === 0 ? '{}' :
343	gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' +
344	mind + '}' : '{' + partial.join(',') + '}';
345	gap = mind;
346	return v;
347	}
348	}
349
350	// If the JSON object does not yet have a stringify method, give it one.
351
352	if (typeof JSON.stringify !== 'function') {
353	JSON.stringify = function (value, replacer, space) {
354
355	// The stringify method takes a value and an optional replacer, and an optional
356	// space parameter, and returns a JSON text. The replacer can be a function
357	// that can replace values, or an array of strings that will select the keys.
358	// A default replacer method can be provided. Use of the space parameter can
359	// produce text that is more easily readable.
360
361	var i;
362	gap = '';
363	indent = '';
364
365	// If the space parameter is a number, make an indent string containing that
366	// many spaces.
367
368	if (typeof space === 'number') {
369	for (i = 0; i < space; i += 1) {
370	indent += ' ';
371	}
372
373	// If the space parameter is a string, it will be used as the indent string.
374
375	} else if (typeof space === 'string') {
376	indent = space;
377	}
378
379	// If there is a replacer, it must be a function or an array.
380	// Otherwise, throw an error.
381
382	rep = replacer;
383	if (replacer && typeof replacer !== 'function' &&
384	(typeof replacer !== 'object' \|\|
385	typeof replacer.length !== 'number')) {
386	throw new Error('JSON.stringify');
387	}
388
389	// Make a fake root object containing our value under the key of ''.
390	// Return the result of stringifying the value.
391
392	return str('', {'': value});
393	};
394	}
395
396
397	// If the JSON object does not yet have a parse method, give it one.
398
399	if (typeof JSON.parse !== 'function') {
400	JSON.parse = function (text, reviver) {
401
402	// The parse method takes a text and an optional reviver function, and returns
403	// a JavaScript value if the text is a valid JSON text.
404
405	var j;
406
407	function walk(holder, key) {
408
409	// The walk method is used to recursively walk the resulting structure so
410	// that modifications can be made.
411
412	var k, v, value = holder[key];
413	if (value && typeof value === 'object') {
414	for (k in value) {
415	if (Object.hasOwnProperty.call(value, k)) {
416	v = walk(value, k);
417	if (v !== undefined) {
418	value[k] = v;
419	} else {
420	delete value[k];
421	}
422	}
423	}
424	}
425	return reviver.call(holder, key, value);
426	}
427
428
429	// Parsing happens in four stages. In the first stage, we replace certain
430	// Unicode characters with escape sequences. JavaScript handles many characters
431	// incorrectly, either silently deleting them, or treating them as line endings.
432
433	cx.lastIndex = 0;
434	if (cx.test(text)) {
435	text = text.replace(cx, function (a) {
436	return '\\u' +
437	('0000' + a.charCodeAt(0).toString(16)).slice(-4);
438	});
439	}
440
441	// In the second stage, we run the text against regular expressions that look
442	// for non-JSON patterns. We are especially concerned with '()' and 'new'
443	// because they can cause invocation, and '=' because it can cause mutation.
444	// But just to be safe, we want to reject all unexpected forms.
445
446	// We split the second stage into 4 regexp operations in order to work around
447	// crippling inefficiencies in IE's and Safari's regexp engines. First we
448	// replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
449	// replace all simple value tokens with ']' characters. Third, we delete all
450	// open brackets that follow a colon or comma or that begin the text. Finally,
451	// we look to see that the remaining characters are only whitespace or ']' or
452	// ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
453
454	if (/^[\],:{}\s]*$/.
455	test(text.replace(/\\(?:["\\\/bfnrt]\|u[0-9a-fA-F]{4})/g, '@').
456	replace(/"[^"\\\n\r]"\|true\|false\|null\|-?\d+(?:\.\d)?(?:[eE][+\-]?\d+)?/g, ']').
457	replace(/(?:^\|:\|,)(?:\s*\[)+/g, ''))) {
458
459	// In the third stage we use the eval function to compile the text into a
460	// JavaScript structure. The '{' operator is subject to a syntactic ambiguity
461	// in JavaScript: it can begin a block or an object literal. We wrap the text
462	// in parens to eliminate the ambiguity.
463
464	j = eval('(' + text + ')');
465
466	// In the optional fourth stage, we recursively walk the new structure, passing
467	// each name/value pair to a reviver function for possible transformation.
468
469	return typeof reviver === 'function' ?
470	walk({'': j}, '') : j;
471	}
472
473	// If the text is not JSON parseable, then a SyntaxError is thrown.
474
475	throw new SyntaxError('JSON.parse');
476	};
477	}
478	})();