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Diffstat (limited to 'libs/json/json.js')
| -rw-r--r-- | libs/json/json.js | 317 |
1 files changed, 0 insertions, 317 deletions
diff --git a/libs/json/json.js b/libs/json/json.js deleted file mode 100644 index 935bd40ce8..0000000000 --- a/libs/json/json.js +++ /dev/null @@ -1,317 +0,0 @@ -/* - json.js - 2007-08-19 - - Public Domain - - This file adds these methods to JavaScript: - - array.toJSONString(whitelist) - boolean.toJSONString() - date.toJSONString() - number.toJSONString() - object.toJSONString(whitelist) - string.toJSONString() - These methods produce a JSON text from a JavaScript value. - It must not contain any cyclical references. Illegal values - will be excluded. - - The default conversion for dates is to an ISO string. You can - add a toJSONString method to any date object to get a different - representation. - - The object and array methods can take an optional whitelist - argument. A whitelist is an array of strings. If it is provided, - keys in objects not found in the whitelist are excluded. - - string.parseJSON(filter) - This method parses a JSON text to produce an object or - array. It can throw a SyntaxError exception. - - The optional filter parameter is a function which 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 structure is not modified. If it - returns undefined then the member is deleted. - - Example: - - // Parse the text. If a key contains the string 'date' then - // convert the value to a date. - - myData = text.parseJSON(function (key, value) { - return key.indexOf('date') >= 0 ? new Date(value) : value; - }); - - It is expected that these methods will formally become part of the - JavaScript Programming Language in the Fourth Edition of the - ECMAScript standard in 2008. - - This file will break programs with improper for..in loops. See - http://yuiblog.com/blog/2006/09/26/for-in-intrigue/ - - This is a reference implementation. You are free to copy, modify, or - redistribute. - - Use your own copy. It is extremely unwise to load untrusted third party - code into your pages. -*/ - -/*jslint evil: true */ - -// Augment the basic prototypes if they have not already been augmented. - -if (!Object.prototype.toJSONString) { - - Array.prototype.toJSONString = function (w) { - var a = [], // The array holding the partial texts. - i, // Loop counter. - l = this.length, - v; // The value to be stringified. - -// For each value in this array... - - for (i = 0; i < l; i += 1) { - v = this[i]; - switch (typeof v) { - case 'object': - -// Serialize a JavaScript object value. Ignore objects thats lack the -// toJSONString method. Due to a specification error in ECMAScript, -// typeof null is 'object', so watch out for that case. - - if (v) { - if (typeof v.toJSONString === 'function') { - a.push(v.toJSONString(w)); - } - } else { - a.push('null'); - } - break; - - case 'string': - case 'number': - case 'boolean': - a.push(v.toJSONString()); - -// Values without a JSON representation are ignored. - - } - } - -// Join all of the member texts together and wrap them in brackets. - - return '[' + a.join(',') + ']'; - }; - - - Boolean.prototype.toJSONString = function () { - return String(this); - }; - - - Date.prototype.toJSONString = function () { - -// Eventually, this method will be based on the date.toISOString method. - - 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"'; - }; - - - Number.prototype.toJSONString = function () { - -// JSON numbers must be finite. Encode non-finite numbers as null. - - return isFinite(this) ? String(this) : 'null'; - }; - - - Object.prototype.toJSONString = function (w) { - var a = [], // The array holding the partial texts. - k, // The current key. - i, // The loop counter. - v; // The current value. - -// If a whitelist (array of keys) is provided, use it assemble the components -// of the object. - - if (w) { - for (i = 0; i < w.length; i += 1) { - k = w[i]; - if (typeof k === 'string') { - v = this[k]; - switch (typeof v) { - case 'object': - -// Serialize a JavaScript object value. Ignore objects that lack the -// toJSONString method. Due to a specification error in ECMAScript, -// typeof null is 'object', so watch out for that case. - - if (v) { - if (typeof v.toJSONString === 'function') { - a.push(k.toJSONString() + ':' + - v.toJSONString(w)); - } - } else { - a.push(k.toJSONString() + ':null'); - } - break; - - case 'string': - case 'number': - case 'boolean': - a.push(k.toJSONString() + ':' + v.toJSONString()); - -// Values without a JSON representation are ignored. - - } - } - } - } else { - -// Iterate through all of the keys in the object, ignoring the proto chain -// and keys that are not strings. - - for (k in this) { - if (typeof k === 'string' && - Object.prototype.hasOwnProperty.apply(this, [k])) { - v = this[k]; - switch (typeof v) { - case 'object': - -// Serialize a JavaScript object value. Ignore objects that lack the -// toJSONString method. Due to a specification error in ECMAScript, -// typeof null is 'object', so watch out for that case. - - if (v) { - if (typeof v.toJSONString === 'function') { - a.push(k.toJSONString() + ':' + - v.toJSONString()); - } - } else { - a.push(k.toJSONString() + ':null'); - } - break; - - case 'string': - case 'number': - case 'boolean': - a.push(k.toJSONString() + ':' + v.toJSONString()); - -// Values without a JSON representation are ignored. - - } - } - } - } - -// Join all of the member texts together and wrap them in braces. - - return '{' + a.join(',') + '}'; - }; - - - (function (s) { - -// Augment String.prototype. We do this in an immediate anonymous function to -// avoid defining global variables. - -// m is a table of character substitutions. - - var m = { - '\b': '\\b', - '\t': '\\t', - '\n': '\\n', - '\f': '\\f', - '\r': '\\r', - '"' : '\\"', - '\\': '\\\\' - }; - - - s.parseJSON = function (filter) { - var j; - - function walk(k, v) { - var i; - if (v && typeof v === 'object') { - for (i in v) { - if (Object.prototype.hasOwnProperty.apply(v, [i])) { - v[i] = walk(i, v[i]); - } - } - } - return filter(k, v); - } - - -// Parsing happens in three stages. In the first stage, we run the text against -// a regular expression which looks for non-JSON characters. We are especially -// concerned with '()' and 'new' because they can cause invocation, and '=' -// because it can cause mutation. But just to be safe, we will reject all -// unexpected characters. - -// We split the first stage into 3 regexp operations in order to work around -// crippling deficiencies in Safari's regexp engine. First we replace all -// backslash pairs with '@' (a non-JSON character). Second we delete all of -// the string literals. Third, we look to see if only JSON characters -// remain. If so, then the text is safe for eval. - - if (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/.test(this. - replace(/\\./g, '@'). - replace(/"[^"\\\n\r]*"/g, ''))) { - -// In the second 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('(' + this + ')'); - -// In the optional third stage, we recursively walk the new structure, passing -// each name/value pair to a filter function for possible transformation. - - return typeof filter === 'function' ? walk('', j) : j; - } - -// If the text is not JSON parseable, then a SyntaxError is thrown. - - throw new SyntaxError('parseJSON'); - }; - - - s.toJSONString = function () { - -// If the string contains no control characters, no quote characters, and no -// backslash characters, then we can simply slap some quotes around it. -// Otherwise we must also replace the offending characters with safe -// sequences. - - if (/["\\\x00-\x1f]/.test(this)) { - return '"' + this.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); - }) + '"'; - } - return '"' + this + '"'; - }; - })(String.prototype); -} |