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/HotelSpaWP/wp-includes/js/json2.js

https://bitbucket.org/Trulsh/personal-bootstrap-projects
JavaScript | 519 lines | 273 code | 54 blank | 192 comment | 20 complexity | 73a1d77b4e827c45061f4fab041030a9 MD5 | raw file
  1/*
  2    json2.js
  3    2015-05-03
  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
 12    This code should be minified before deployment.
 13    See http://javascript.crockford.com/jsmin.html
 14
 15    USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO
 16    NOT CONTROL.
 17
 18
 19    This file creates a global JSON object containing two methods: stringify
 20    and parse. This file is provides the ES5 JSON capability to ES3 systems.
 21    If a project might run on IE8 or earlier, then this file should be included.
 22    This file does nothing on ES5 systems.
 23
 24        JSON.stringify(value, replacer, space)
 25            value       any JavaScript value, usually an object or array.
 26
 27            replacer    an optional parameter that determines how object
 28                        values are stringified for objects. It can be a
 29                        function or an array of strings.
 30
 31            space       an optional parameter that specifies the indentation
 32                        of nested structures. If it is omitted, the text will
 33                        be packed without extra whitespace. If it is a number,
 34                        it will specify the number of spaces to indent at each
 35                        level. If it is a string (such as '\t' or ' '),
 36                        it contains the characters used to indent at each level.
 37
 38            This method produces a JSON text from a JavaScript value.
 39
 40            When an object value is found, if the object contains a toJSON
 41            method, its toJSON method will be called and the result will be
 42            stringified. A toJSON method does not serialize: it returns the
 43            value represented by the name/value pair that should be serialized,
 44            or undefined if nothing should be serialized. The toJSON method
 45            will be passed the key associated with the value, and this will be
 46            bound to the value
 47
 48            For example, this would serialize Dates as ISO strings.
 49
 50                Date.prototype.toJSON = function (key) {
 51                    function f(n) {
 52                        // Format integers to have at least two digits.
 53                        return n < 10 
 54                            ? '0' + n 
 55                            : n;
 56                    }
 57
 58                    return this.getUTCFullYear()   + '-' +
 59                         f(this.getUTCMonth() + 1) + '-' +
 60                         f(this.getUTCDate())      + 'T' +
 61                         f(this.getUTCHours())     + ':' +
 62                         f(this.getUTCMinutes())   + ':' +
 63                         f(this.getUTCSeconds())   + 'Z';
 64                };
 65
 66            You can provide an optional replacer method. It will be passed the
 67            key and value of each member, with this bound to the containing
 68            object. The value that is returned from your method will be
 69            serialized. If your method returns undefined, then the member will
 70            be excluded from the serialization.
 71
 72            If the replacer parameter is an array of strings, then it will be
 73            used to select the members to be serialized. It filters the results
 74            such that only members with keys listed in the replacer array are
 75            stringified.
 76
 77            Values that do not have JSON representations, such as undefined or
 78            functions, will not be serialized. Such values in objects will be
 79            dropped; in arrays they will be replaced with null. You can use
 80            a replacer function to replace those with JSON values.
 81            JSON.stringify(undefined) returns undefined.
 82
 83            The optional space parameter produces a stringification of the
 84            value that is filled with line breaks and indentation to make it
 85            easier to read.
 86
 87            If the space parameter is a non-empty string, then that string will
 88            be used for indentation. If the space parameter is a number, then
 89            the indentation will be that many spaces.
 90
 91            Example:
 92
 93            text = JSON.stringify(['e', {pluribus: 'unum'}]);
 94            // text is '["e",{"pluribus":"unum"}]'
 95
 96
 97            text = JSON.stringify(['e', {pluribus: 'unum'}], null, '\t');
 98            // text is '[\n\t"e",\n\t{\n\t\t"pluribus": "unum"\n\t}\n]'
 99
100            text = JSON.stringify([new Date()], function (key, value) {
101                return this[key] instanceof Date 
102                    ? 'Date(' + this[key] + ')' 
103                    : value;
104            });
105            // text is '["Date(---current time---)"]'
106
107
108        JSON.parse(text, reviver)
109            This method parses a JSON text to produce an object or array.
110            It can throw a SyntaxError exception.
111
112            The optional reviver parameter is a function that can filter and
113            transform the results. It receives each of the keys and values,
114            and its return value is used instead of the original value.
115            If it returns what it received, then the structure is not modified.
116            If it returns undefined then the member is deleted.
117
118            Example:
119
120            // Parse the text. Values that look like ISO date strings will
121            // be converted to Date objects.
122
123            myData = JSON.parse(text, function (key, value) {
124                var a;
125                if (typeof value === 'string') {
126                    a =
127/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value);
128                    if (a) {
129                        return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4],
130                            +a[5], +a[6]));
131                    }
132                }
133                return value;
134            });
135
136            myData = JSON.parse('["Date(09/09/2001)"]', function (key, value) {
137                var d;
138                if (typeof value === 'string' &&
139                        value.slice(0, 5) === 'Date(' &&
140                        value.slice(-1) === ')') {
141                    d = new Date(value.slice(5, -1));
142                    if (d) {
143                        return d;
144                    }
145                }
146                return value;
147            });
148
149
150    This is a reference implementation. You are free to copy, modify, or
151    redistribute.
152*/
153
154/*jslint 
155    eval, for, this 
156*/
157
158/*property
159    JSON, apply, call, charCodeAt, getUTCDate, getUTCFullYear, getUTCHours,
160    getUTCMinutes, getUTCMonth, getUTCSeconds, hasOwnProperty, join,
161    lastIndex, length, parse, prototype, push, replace, slice, stringify,
162    test, toJSON, toString, valueOf
163*/
164
165
166// Create a JSON object only if one does not already exist. We create the
167// methods in a closure to avoid creating global variables.
168
169if (typeof JSON !== 'object') {
170    JSON = {};
171}
172
173(function () {
174    'use strict';
175    
176    var rx_one = /^[\],:{}\s]*$/,
177        rx_two = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,
178        rx_three = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,
179        rx_four = /(?:^|:|,)(?:\s*\[)+/g,
180        rx_escapable = /[\\\"\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
181        rx_dangerous = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g;
182
183    function f(n) {
184        // Format integers to have at least two digits.
185        return n < 10 
186            ? '0' + n 
187            : n;
188    }
189    
190    function this_value() {
191        return this.valueOf();
192    }
193
194    if (typeof Date.prototype.toJSON !== 'function') {
195
196        Date.prototype.toJSON = function () {
197
198            return isFinite(this.valueOf())
199                ? this.getUTCFullYear() + '-' +
200                        f(this.getUTCMonth() + 1) + '-' +
201                        f(this.getUTCDate()) + 'T' +
202                        f(this.getUTCHours()) + ':' +
203                        f(this.getUTCMinutes()) + ':' +
204                        f(this.getUTCSeconds()) + 'Z'
205                : null;
206        };
207
208        Boolean.prototype.toJSON = this_value;
209        Number.prototype.toJSON = this_value;
210        String.prototype.toJSON = this_value;
211    }
212
213    var gap,
214        indent,
215        meta,
216        rep;
217
218
219    function quote(string) {
220
221// If the string contains no control characters, no quote characters, and no
222// backslash characters, then we can safely slap some quotes around it.
223// Otherwise we must also replace the offending characters with safe escape
224// sequences.
225
226        rx_escapable.lastIndex = 0;
227        return rx_escapable.test(string) 
228            ? '"' + string.replace(rx_escapable, function (a) {
229                var c = meta[a];
230                return typeof c === 'string'
231                    ? c
232                    : '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
233            }) + '"' 
234            : '"' + string + '"';
235    }
236
237
238    function str(key, holder) {
239
240// Produce a string from holder[key].
241
242        var i,          // The loop counter.
243            k,          // The member key.
244            v,          // The member value.
245            length,
246            mind = gap,
247            partial,
248            value = holder[key];
249
250// If the value has a toJSON method, call it to obtain a replacement value.
251
252        if (value && typeof value === 'object' &&
253                typeof value.toJSON === 'function') {
254            value = value.toJSON(key);
255        }
256
257// If we were called with a replacer function, then call the replacer to
258// obtain a replacement value.
259
260        if (typeof rep === 'function') {
261            value = rep.call(holder, key, value);
262        }
263
264// What happens next depends on the value's type.
265
266        switch (typeof value) {
267        case 'string':
268            return quote(value);
269
270        case 'number':
271
272// JSON numbers must be finite. Encode non-finite numbers as null.
273
274            return isFinite(value) 
275                ? String(value) 
276                : 'null';
277
278        case 'boolean':
279        case 'null':
280
281// If the value is a boolean or null, convert it to a string. Note:
282// typeof null does not produce 'null'. The case is included here in
283// the remote chance that this gets fixed someday.
284
285            return String(value);
286
287// If the type is 'object', we might be dealing with an object or an array or
288// null.
289
290        case 'object':
291
292// Due to a specification blunder in ECMAScript, typeof null is 'object',
293// so watch out for that case.
294
295            if (!value) {
296                return 'null';
297            }
298
299// Make an array to hold the partial results of stringifying this object value.
300
301            gap += indent;
302            partial = [];
303
304// Is the value an array?
305
306            if (Object.prototype.toString.apply(value) === '[object Array]') {
307
308// The value is an array. Stringify every element. Use null as a placeholder
309// for non-JSON values.
310
311                length = value.length;
312                for (i = 0; i < length; i += 1) {
313                    partial[i] = str(i, value) || 'null';
314                }
315
316// Join all of the elements together, separated with commas, and wrap them in
317// brackets.
318
319                v = partial.length === 0
320                    ? '[]'
321                    : gap
322                        ? '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']'
323                        : '[' + partial.join(',') + ']';
324                gap = mind;
325                return v;
326            }
327
328// If the replacer is an array, use it to select the members to be stringified.
329
330            if (rep && typeof rep === 'object') {
331                length = rep.length;
332                for (i = 0; i < length; i += 1) {
333                    if (typeof rep[i] === 'string') {
334                        k = rep[i];
335                        v = str(k, value);
336                        if (v) {
337                            partial.push(quote(k) + (
338                                gap 
339                                    ? ': ' 
340                                    : ':'
341                            ) + v);
342                        }
343                    }
344                }
345            } else {
346
347// Otherwise, iterate through all of the keys in the object.
348
349                for (k in value) {
350                    if (Object.prototype.hasOwnProperty.call(value, k)) {
351                        v = str(k, value);
352                        if (v) {
353                            partial.push(quote(k) + (
354                                gap 
355                                    ? ': ' 
356                                    : ':'
357                            ) + v);
358                        }
359                    }
360                }
361            }
362
363// Join all of the member texts together, separated with commas,
364// and wrap them in braces.
365
366            v = partial.length === 0
367                ? '{}'
368                : gap
369                    ? '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}'
370                    : '{' + partial.join(',') + '}';
371            gap = mind;
372            return v;
373        }
374    }
375
376// If the JSON object does not yet have a stringify method, give it one.
377
378    if (typeof JSON.stringify !== 'function') {
379        meta = {    // table of character substitutions
380            '\b': '\\b',
381            '\t': '\\t',
382            '\n': '\\n',
383            '\f': '\\f',
384            '\r': '\\r',
385            '"': '\\"',
386            '\\': '\\\\'
387        };
388        JSON.stringify = function (value, replacer, space) {
389
390// The stringify method takes a value and an optional replacer, and an optional
391// space parameter, and returns a JSON text. The replacer can be a function
392// that can replace values, or an array of strings that will select the keys.
393// A default replacer method can be provided. Use of the space parameter can
394// produce text that is more easily readable.
395
396            var i;
397            gap = '';
398            indent = '';
399
400// If the space parameter is a number, make an indent string containing that
401// many spaces.
402
403            if (typeof space === 'number') {
404                for (i = 0; i < space; i += 1) {
405                    indent += ' ';
406                }
407
408// If the space parameter is a string, it will be used as the indent string.
409
410            } else if (typeof space === 'string') {
411                indent = space;
412            }
413
414// If there is a replacer, it must be a function or an array.
415// Otherwise, throw an error.
416
417            rep = replacer;
418            if (replacer && typeof replacer !== 'function' &&
419                    (typeof replacer !== 'object' ||
420                    typeof replacer.length !== 'number')) {
421                throw new Error('JSON.stringify');
422            }
423
424// Make a fake root object containing our value under the key of ''.
425// Return the result of stringifying the value.
426
427            return str('', {'': value});
428        };
429    }
430
431
432// If the JSON object does not yet have a parse method, give it one.
433
434    if (typeof JSON.parse !== 'function') {
435        JSON.parse = function (text, reviver) {
436
437// The parse method takes a text and an optional reviver function, and returns
438// a JavaScript value if the text is a valid JSON text.
439
440            var j;
441
442            function walk(holder, key) {
443
444// The walk method is used to recursively walk the resulting structure so
445// that modifications can be made.
446
447                var k, v, value = holder[key];
448                if (value && typeof value === 'object') {
449                    for (k in value) {
450                        if (Object.prototype.hasOwnProperty.call(value, k)) {
451                            v = walk(value, k);
452                            if (v !== undefined) {
453                                value[k] = v;
454                            } else {
455                                delete value[k];
456                            }
457                        }
458                    }
459                }
460                return reviver.call(holder, key, value);
461            }
462
463
464// Parsing happens in four stages. In the first stage, we replace certain
465// Unicode characters with escape sequences. JavaScript handles many characters
466// incorrectly, either silently deleting them, or treating them as line endings.
467
468            text = String(text);
469            rx_dangerous.lastIndex = 0;
470            if (rx_dangerous.test(text)) {
471                text = text.replace(rx_dangerous, function (a) {
472                    return '\\u' +
473                            ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
474                });
475            }
476
477// In the second stage, we run the text against regular expressions that look
478// for non-JSON patterns. We are especially concerned with '()' and 'new'
479// because they can cause invocation, and '=' because it can cause mutation.
480// But just to be safe, we want to reject all unexpected forms.
481
482// We split the second stage into 4 regexp operations in order to work around
483// crippling inefficiencies in IE's and Safari's regexp engines. First we
484// replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
485// replace all simple value tokens with ']' characters. Third, we delete all
486// open brackets that follow a colon or comma or that begin the text. Finally,
487// we look to see that the remaining characters are only whitespace or ']' or
488// ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
489
490            if (
491                rx_one.test(
492                    text
493                        .replace(rx_two, '@')
494                        .replace(rx_three, ']')
495                        .replace(rx_four, '')
496                )
497            ) {
498
499// In the third stage we use the eval function to compile the text into a
500// JavaScript structure. The '{' operator is subject to a syntactic ambiguity
501// in JavaScript: it can begin a block or an object literal. We wrap the text
502// in parens to eliminate the ambiguity.
503
504                j = eval('(' + text + ')');
505
506// In the optional fourth stage, we recursively walk the new structure, passing
507// each name/value pair to a reviver function for possible transformation.
508
509                return typeof reviver === 'function'
510                    ? walk({'': j}, '')
511                    : j;
512            }
513
514// If the text is not JSON parseable, then a SyntaxError is thrown.
515
516            throw new SyntaxError('JSON.parse');
517        };
518    }
519}());