Name: js-handler/node_modules/nodeunit/deps/json2.js 
1:
/*
2:
    http://www.JSON.org/json2.js
3:
    2010-11-17
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5:
    Public Domain.
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7:
    NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
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9:
    See http://www.JSON.org/js.html
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11:
 
12:
    This code should be minified before deployment.
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    See http://javascript.crockford.com/jsmin.html
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15:
    USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO
16:
    NOT CONTROL.
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18:
 
19:
    This file creates a global JSON object containing two methods: stringify
20:
    and parse.
21:
 
22:
        JSON.stringify(value, replacer, space)
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            value       any JavaScript value, usually an object or array.
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25:
            replacer    an optional parameter that determines how object
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                        values are stringified for objects. It can be a
27:
                        function or an array of strings.
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29:
            space       an optional parameter that specifies the indentation
30:
                        of nested structures. If it is omitted, the text will
31:
                        be packed without extra whitespace. If it is a number,
32:
                        it will specify the number of spaces to indent at each
33:
                        level. If it is a string (such as '\t' or ' '),
34:
                        it contains the characters used to indent at each level.
35:
 
36:
            This method produces a JSON text from a JavaScript value.
37:
 
38:
            When an object value is found, if the object contains a toJSON
39:
            method, its toJSON method will be called and the result will be
40:
            stringified. A toJSON method does not serialize: it returns the
41:
            value represented by the name/value pair that should be serialized,
42:
            or undefined if nothing should be serialized. The toJSON method
43:
            will be passed the key associated with the value, and this will be
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            bound to the value
45:
 
46:
            For example, this would serialize Dates as ISO strings.
47:
 
48:
                Date.prototype.toJSON = function (key) {
49:
                    function f(n) {
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                        // Format integers to have at least two digits.
51:
                        return n < 10 ? '0' + n : n;
52:
                    }
53:
 
54:
                    return this.getUTCFullYear()   + '-' +
55:
                         f(this.getUTCMonth() + 1) + '-' +
56:
                         f(this.getUTCDate())      + 'T' +
57:
                         f(this.getUTCHours())     + ':' +
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                         f(this.getUTCMinutes())   + ':' +
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                         f(this.getUTCSeconds())   + 'Z';
60:
                };
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62:
            You can provide an optional replacer method. It will be passed the
63:
            key and value of each member, with this bound to the containing
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            object. The value that is returned from your method will be
65:
            serialized. If your method returns undefined, then the member will
66:
            be excluded from the serialization.
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68:
            If the replacer parameter is an array of strings, then it will be
69:
            used to select the members to be serialized. It filters the results
70:
            such that only members with keys listed in the replacer array are
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            stringified.
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73:
            Values that do not have JSON representations, such as undefined or
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            functions, will not be serialized. Such values in objects will be
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            dropped; in arrays they will be replaced with null. You can use
76:
            a replacer function to replace those with JSON values.
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            JSON.stringify(undefined) returns undefined.
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79:
            The optional space parameter produces a stringification of the
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            value that is filled with line breaks and indentation to make it
81:
            easier to read.
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            If the space parameter is a non-empty string, then that string will
84:
            be used for indentation. If the space parameter is a number, then
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            the indentation will be that many spaces.
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87:
            Example:
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            text = JSON.stringify(['e', {pluribus: 'unum'}]);
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            // text is '["e",{"pluribus":"unum"}]'
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93:
            text = JSON.stringify(['e', {pluribus: 'unum'}], null, '\t');
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            // text is '[\n\t"e",\n\t{\n\t\t"pluribus": "unum"\n\t}\n]'
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96:
            text = JSON.stringify([new Date()], function (key, value) {
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                return this[key] instanceof Date ?
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                    'Date(' + this[key] + ')' : value;
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            });
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            // text is '["Date(---current time---)"]'
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102:
 
103:
        JSON.parse(text, reviver)
104:
            This method parses a JSON text to produce an object or array.
105:
            It can throw a SyntaxError exception.
106:
 
107:
            The optional reviver parameter is a function that can filter and
108:
            transform the results. It receives each of the keys and values,
109:
            and its return value is used instead of the original value.
110:
            If it returns what it received, then the structure is not modified.
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            If it returns undefined then the member is deleted.
112:
 
113:
            Example:
114:
 
115:
            // Parse the text. Values that look like ISO date strings will
116:
            // be converted to Date objects.
117:
 
118:
            myData = JSON.parse(text, function (key, value) {
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                var a;
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                if (typeof value === 'string') {
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                    a =
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/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value);
123:
                    if (a) {
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                        return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4],
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                            +a[5], +a[6]));
126:
                    }
127:
                }
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                return value;
129:
            });
130:
 
131:
            myData = JSON.parse('["Date(09/09/2001)"]', function (key, value) {
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                var d;
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                if (typeof value === 'string' &&
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                        value.slice(0, 5) === 'Date(' &&
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                        value.slice(-1) === ')') {
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                    d = new Date(value.slice(5, -1));
137:
                    if (d) {
138:
                        return d;
139:
                    }
140:
                }
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                return value;
142:
            });
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144:
 
145:
    This is a reference implementation. You are free to copy, modify, or
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    redistribute.
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*/
148:
 
149:
/*jslint evil: true, strict: false, regexp: false */
150:
 
151:
/*members "", "\b", "\t", "\n", "\f", "\r", "\"", JSON, "\\", apply,
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    call, charCodeAt, getUTCDate, getUTCFullYear, getUTCHours,
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    getUTCMinutes, getUTCMonth, getUTCSeconds, hasOwnProperty, join,
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    lastIndex, length, parse, prototype, push, replace, slice, stringify,
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    test, toJSON, toString, valueOf
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*/
157:
 
158:
 
159:
// Create a JSON object only if one does not already exist. We create the
160:
// methods in a closure to avoid creating global variables.
161:
 
162:
var JSON = {};
163:
 
164:
(function () {
165:
    "use strict";
166:
 
167:
    function f(n) {
168:
        // Format integers to have at least two digits.
169:
        return n < 10 ? '0' + n : n;
170:
    }
171:
 
172:
    if (typeof Date.prototype.toJSON !== 'function') {
173:
 
174:
        Date.prototype.toJSON = function (key) {
175:
 
176:
            return isFinite(this.valueOf()) ?
177:
                   this.getUTCFullYear()   + '-' +
178:
                 f(this.getUTCMonth() + 1) + '-' +
179:
                 f(this.getUTCDate())      + 'T' +
180:
                 f(this.getUTCHours())     + ':' +
181:
                 f(this.getUTCMinutes())   + ':' +
182:
                 f(this.getUTCSeconds())   + 'Z' : null;
183:
        };
184:
 
185:
        String.prototype.toJSON =
186:
        Number.prototype.toJSON =
187:
        Boolean.prototype.toJSON = function (key) {
188:
            return this.valueOf();
189:
        };
190:
    }
191:
 
192:
    var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
193:
        escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
194:
        gap,
195:
        indent,
196:
        meta = {    // table of character substitutions
197:
            '\b': '\\b',
198:
            '\t': '\\t',
199:
            '\n': '\\n',
200:
            '\f': '\\f',
201:
            '\r': '\\r',
202:
            '"' : '\\"',
203:
            '\\': '\\\\'
204:
        },
205:
        rep;
206:
 
207:
 
208:
    function quote(string) {
209:
 
210:
// If the string contains no control characters, no quote characters, and no
211:
// backslash characters, then we can safely slap some quotes around it.
212:
// Otherwise we must also replace the offending characters with safe escape
213:
// sequences.
214:
 
215:
        escapable.lastIndex = 0;
216:
        return escapable.test(string) ?
217:
            '"' + string.replace(escapable, function (a) {
218:
                var c = meta[a];
219:
                return typeof c === 'string' ? c :
220:
                    '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
221:
            }) + '"' :
222:
            '"' + string + '"';
223:
    }
224:
 
225:
 
226:
    function str(key, holder) {
227:
 
228:
// Produce a string from holder[key].
229:
 
230:
        var i,          // The loop counter.
231:
            k,          // The member key.
232:
            v,          // The member value.
233:
            length,
234:
            mind = gap,
235:
            partial,
236:
            value = holder[key];
237:
 
238:
// If the value has a toJSON method, call it to obtain a replacement value.
239:
 
240:
        if (value && typeof value === 'object' &&
241:
                typeof value.toJSON === 'function') {
242:
            value = value.toJSON(key);
243:
        }
244:
 
245:
// If we were called with a replacer function, then call the replacer to
246:
// obtain a replacement value.
247:
 
248:
        if (typeof rep === 'function') {
249:
            value = rep.call(holder, key, value);
250:
        }
251:
 
252:
// What happens next depends on the value's type.
253:
 
254:
        switch (typeof value) {
255:
        case 'string':
256:
            return quote(value);
257:
 
258:
        case 'number':
259:
 
260:
// JSON numbers must be finite. Encode non-finite numbers as null.
261:
 
262:
            return isFinite(value) ? String(value) : 'null';
263:
 
264:
        case 'boolean':
265:
        case 'null':
266:
 
267:
// If the value is a boolean or null, convert it to a string. Note:
268:
// typeof null does not produce 'null'. The case is included here in
269:
// the remote chance that this gets fixed someday.
270:
 
271:
            return String(value);
272:
 
273:
// If the type is 'object', we might be dealing with an object or an array or
274:
// null.
275:
 
276:
        case 'object':
277:
 
278:
// Due to a specification blunder in ECMAScript, typeof null is 'object',
279:
// so watch out for that case.
280:
 
281:
            if (!value) {
282:
                return 'null';
283:
            }
284:
 
285:
// Make an array to hold the partial results of stringifying this object value.
286:
 
287:
            gap += indent;
288:
            partial = [];
289:
 
290:
// Is the value an array?
291:
 
292:
            if (Object.prototype.toString.apply(value) === '[object Array]') {
293:
 
294:
// The value is an array. Stringify every element. Use null as a placeholder
295:
// for non-JSON values.
296:
 
297:
                length = value.length;
298:
                for (i = 0; i < length; i += 1) {
299:
                    partial[i] = str(i, value) || 'null';
300:
                }
301:
 
302:
// Join all of the elements together, separated with commas, and wrap them in
303:
// brackets.
304:
 
305:
                v = partial.length === 0 ? '[]' :
306:
                    gap ? '[\n' + gap +
307:
                            partial.join(',\n' + gap) + '\n' +
308:
                                mind + ']' :
309:
                          '[' + partial.join(',') + ']';
310:
                gap = mind;
311:
                return v;
312:
            }
313:
 
314:
// If the replacer is an array, use it to select the members to be stringified.
315:
 
316:
            if (rep && typeof rep === 'object') {
317:
                length = rep.length;
318:
                for (i = 0; i < length; i += 1) {
319:
                    k = rep[i];
320:
                    if (typeof k === 'string') {
321:
                        v = str(k, value);
322:
                        if (v) {
323:
                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
324:
                        }
325:
                    }
326:
                }
327:
            } else {
328:
 
329:
// Otherwise, iterate through all of the keys in the object.
330:
 
331:
                for (k in value) {
332:
                    if (Object.hasOwnProperty.call(value, k)) {
333:
                        v = str(k, value);
334:
                        if (v) {
335:
                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
336:
                        }
337:
                    }
338:
                }
339:
            }
340:
 
341:
// Join all of the member texts together, separated with commas,
342:
// and wrap them in braces.
343:
 
344:
            v = partial.length === 0 ? '{}' :
345:
                gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' +
346:
                        mind + '}' : '{' + partial.join(',') + '}';
347:
            gap = mind;
348:
            return v;
349:
        }
350:
    }
351:
 
352:
// If the JSON object does not yet have a stringify method, give it one.
353:
 
354:
    if (typeof JSON.stringify !== 'function') {
355:
        JSON.stringify = function (value, replacer, space) {
356:
 
357:
// The stringify method takes a value and an optional replacer, and an optional
358:
// space parameter, and returns a JSON text. The replacer can be a function
359:
// that can replace values, or an array of strings that will select the keys.
360:
// A default replacer method can be provided. Use of the space parameter can
361:
// produce text that is more easily readable.
362:
 
363:
            var i;
364:
            gap = '';
365:
            indent = '';
366:
 
367:
// If the space parameter is a number, make an indent string containing that
368:
// many spaces.
369:
 
370:
            if (typeof space === 'number') {
371:
                for (i = 0; i < space; i += 1) {
372:
                    indent += ' ';
373:
                }
374:
 
375:
// If the space parameter is a string, it will be used as the indent string.
376:
 
377:
            } else if (typeof space === 'string') {
378:
                indent = space;
379:
            }
380:
 
381:
// If there is a replacer, it must be a function or an array.
382:
// Otherwise, throw an error.
383:
 
384:
            rep = replacer;
385:
            if (replacer && typeof replacer !== 'function' &&
386:
                    (typeof replacer !== 'object' ||
387:
                     typeof replacer.length !== 'number')) {
388:
                throw new Error('JSON.stringify');
389:
            }
390:
 
391:
// Make a fake root object containing our value under the key of ''.
392:
// Return the result of stringifying the value.
393:
 
394:
            return str('', {'': value});
395:
        };
396:
    }
397:
 
398:
 
399:
// If the JSON object does not yet have a parse method, give it one.
400:
 
401:
    if (typeof JSON.parse !== 'function') {
402:
        JSON.parse = function (text, reviver) {
403:
 
404:
// The parse method takes a text and an optional reviver function, and returns
405:
// a JavaScript value if the text is a valid JSON text.
406:
 
407:
            var j;
408:
 
409:
            function walk(holder, key) {
410:
 
411:
// The walk method is used to recursively walk the resulting structure so
412:
// that modifications can be made.
413:
 
414:
                var k, v, value = holder[key];
415:
                if (value && typeof value === 'object') {
416:
                    for (k in value) {
417:
                        if (Object.hasOwnProperty.call(value, k)) {
418:
                            v = walk(value, k);
419:
                            if (v !== undefined) {
420:
                                value[k] = v;
421:
                            } else {
422:
                                delete value[k];
423:
                            }
424:
                        }
425:
                    }
426:
                }
427:
                return reviver.call(holder, key, value);
428:
            }
429:
 
430:
 
431:
// Parsing happens in four stages. In the first stage, we replace certain
432:
// Unicode characters with escape sequences. JavaScript handles many characters
433:
// incorrectly, either silently deleting them, or treating them as line endings.
434:
 
435:
            text = String(text);
436:
            cx.lastIndex = 0;
437:
            if (cx.test(text)) {
438:
                text = text.replace(cx, function (a) {
439:
                    return '\\u' +
440:
                        ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
441:
                });
442:
            }
443:
 
444:
// In the second stage, we run the text against regular expressions that look
445:
// for non-JSON patterns. We are especially concerned with '()' and 'new'
446:
// because they can cause invocation, and '=' because it can cause mutation.
447:
// But just to be safe, we want to reject all unexpected forms.
448:
 
449:
// We split the second stage into 4 regexp operations in order to work around
450:
// crippling inefficiencies in IE's and Safari's regexp engines. First we
451:
// replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
452:
// replace all simple value tokens with ']' characters. Third, we delete all
453:
// open brackets that follow a colon or comma or that begin the text. Finally,
454:
// we look to see that the remaining characters are only whitespace or ']' or
455:
// ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
456:
 
457:
            if (/^[\],:{}\s]*$/
458:
.test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
459:
.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
460:
.replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
461:
 
462:
// In the third stage we use the eval function to compile the text into a
463:
// JavaScript structure. The '{' operator is subject to a syntactic ambiguity
464:
// in JavaScript: it can begin a block or an object literal. We wrap the text
465:
// in parens to eliminate the ambiguity.
466:
 
467:
                j = eval('(' + text + ')');
468:
 
469:
// In the optional fourth stage, we recursively walk the new structure, passing
470:
// each name/value pair to a reviver function for possible transformation.
471:
 
472:
                return typeof reviver === 'function' ?
473:
                    walk({'': j}, '') : j;
474:
            }
475:
 
476:
// If the text is not JSON parseable, then a SyntaxError is thrown.
477:
 
478:
            throw new SyntaxError('JSON.parse');
479:
        };
480:
    }
481:
}());