diff options
author | Pierre Schmitz <pierre@archlinux.de> | 2014-12-27 15:41:37 +0100 |
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committer | Pierre Schmitz <pierre@archlinux.de> | 2014-12-31 11:43:28 +0100 |
commit | c1f9b1f7b1b77776192048005dcc66dcf3df2bfb (patch) | |
tree | 2b38796e738dd74cb42ecd9bfd151803108386bc /resources/lib/es5-shim | |
parent | b88ab0086858470dd1f644e64cb4e4f62bb2be9b (diff) |
Update to MediaWiki 1.24.1
Diffstat (limited to 'resources/lib/es5-shim')
-rw-r--r-- | resources/lib/es5-shim/es5-shim.js | 1431 |
1 files changed, 1431 insertions, 0 deletions
diff --git a/resources/lib/es5-shim/es5-shim.js b/resources/lib/es5-shim/es5-shim.js new file mode 100644 index 00000000..45959940 --- /dev/null +++ b/resources/lib/es5-shim/es5-shim.js @@ -0,0 +1,1431 @@ +/*! + * https://github.com/es-shims/es5-shim + * @license es5-shim Copyright 2009-2014 by contributors, MIT License + * see https://github.com/es-shims/es5-shim/blob/master/LICENSE + */ + +// vim: ts=4 sts=4 sw=4 expandtab + +//Add semicolon to prevent IIFE from being passed as argument to concated code. +; + +// UMD (Universal Module Definition) +// see https://github.com/umdjs/umd/blob/master/returnExports.js +(function (root, factory) { + if (typeof define === 'function' && define.amd) { + // AMD. Register as an anonymous module. + define(factory); + } else if (typeof exports === 'object') { + // Node. Does not work with strict CommonJS, but + // only CommonJS-like enviroments that support module.exports, + // like Node. + module.exports = factory(); + } else { + // Browser globals (root is window) + root.returnExports = factory(); + } +}(this, function () { + +/** + * Brings an environment as close to ECMAScript 5 compliance + * as is possible with the facilities of erstwhile engines. + * + * Annotated ES5: http://es5.github.com/ (specific links below) + * ES5 Spec: http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf + * Required reading: http://javascriptweblog.wordpress.com/2011/12/05/extending-javascript-natives/ + */ + +// Shortcut to an often accessed properties, in order to avoid multiple +// dereference that costs universally. +var ArrayPrototype = Array.prototype; +var ObjectPrototype = Object.prototype; +var FunctionPrototype = Function.prototype; +var StringPrototype = String.prototype; +var NumberPrototype = Number.prototype; +var _Array_slice_ = ArrayPrototype.slice; +var array_splice = ArrayPrototype.splice; +var array_push = ArrayPrototype.push; +var array_unshift = ArrayPrototype.unshift; +var call = FunctionPrototype.call; + +// Having a toString local variable name breaks in Opera so use _toString. +var _toString = ObjectPrototype.toString; + +var isFunction = function (val) { + return ObjectPrototype.toString.call(val) === '[object Function]'; +}; +var isRegex = function (val) { + return ObjectPrototype.toString.call(val) === '[object RegExp]'; +}; +var isArray = function isArray(obj) { + return _toString.call(obj) === "[object Array]"; +}; +var isString = function isString(obj) { + return _toString.call(obj) === "[object String]"; +}; +var isArguments = function isArguments(value) { + var str = _toString.call(value); + var isArgs = str === '[object Arguments]'; + if (!isArgs) { + isArgs = !isArray(str) + && value !== null + && typeof value === 'object' + && typeof value.length === 'number' + && value.length >= 0 + && isFunction(value.callee); + } + return isArgs; +}; + +var supportsDescriptors = Object.defineProperty && (function () { + try { + Object.defineProperty({}, 'x', {}); + return true; + } catch (e) { /* this is ES3 */ + return false; + } +}()); + +// Define configurable, writable and non-enumerable props +// if they don't exist. +var defineProperty; +if (supportsDescriptors) { + defineProperty = function (object, name, method, forceAssign) { + if (!forceAssign && (name in object)) { return; } + Object.defineProperty(object, name, { + configurable: true, + enumerable: false, + writable: true, + value: method + }); + }; +} else { + defineProperty = function (object, name, method, forceAssign) { + if (!forceAssign && (name in object)) { return; } + object[name] = method; + }; +} +var defineProperties = function (object, map, forceAssign) { + for (var name in map) { + if (ObjectPrototype.hasOwnProperty.call(map, name)) { + defineProperty(object, name, map[name], forceAssign); + } + } +}; + +// +// Util +// ====== +// + +// ES5 9.4 +// http://es5.github.com/#x9.4 +// http://jsperf.com/to-integer + +function toInteger(n) { + n = +n; + if (n !== n) { // isNaN + n = 0; + } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) { + n = (n > 0 || -1) * Math.floor(Math.abs(n)); + } + return n; +} + +function isPrimitive(input) { + var type = typeof input; + return ( + input === null || + type === "undefined" || + type === "boolean" || + type === "number" || + type === "string" + ); +} + +function toPrimitive(input) { + var val, valueOf, toStr; + if (isPrimitive(input)) { + return input; + } + valueOf = input.valueOf; + if (isFunction(valueOf)) { + val = valueOf.call(input); + if (isPrimitive(val)) { + return val; + } + } + toStr = input.toString; + if (isFunction(toStr)) { + val = toStr.call(input); + if (isPrimitive(val)) { + return val; + } + } + throw new TypeError(); +} + +// ES5 9.9 +// http://es5.github.com/#x9.9 +var toObject = function (o) { + if (o == null) { // this matches both null and undefined + throw new TypeError("can't convert " + o + " to object"); + } + return Object(o); +}; + +var ToUint32 = function ToUint32(x) { + return x >>> 0; +}; + +// +// Function +// ======== +// + +// ES-5 15.3.4.5 +// http://es5.github.com/#x15.3.4.5 + +function Empty() {} + +defineProperties(FunctionPrototype, { + bind: function bind(that) { // .length is 1 + // 1. Let Target be the this value. + var target = this; + // 2. If IsCallable(Target) is false, throw a TypeError exception. + if (!isFunction(target)) { + throw new TypeError("Function.prototype.bind called on incompatible " + target); + } + // 3. Let A be a new (possibly empty) internal list of all of the + // argument values provided after thisArg (arg1, arg2 etc), in order. + // XXX slicedArgs will stand in for "A" if used + var args = _Array_slice_.call(arguments, 1); // for normal call + // 4. Let F be a new native ECMAScript object. + // 11. Set the [[Prototype]] internal property of F to the standard + // built-in Function prototype object as specified in 15.3.3.1. + // 12. Set the [[Call]] internal property of F as described in + // 15.3.4.5.1. + // 13. Set the [[Construct]] internal property of F as described in + // 15.3.4.5.2. + // 14. Set the [[HasInstance]] internal property of F as described in + // 15.3.4.5.3. + var binder = function () { + + if (this instanceof bound) { + // 15.3.4.5.2 [[Construct]] + // When the [[Construct]] internal method of a function object, + // F that was created using the bind function is called with a + // list of arguments ExtraArgs, the following steps are taken: + // 1. Let target be the value of F's [[TargetFunction]] + // internal property. + // 2. If target has no [[Construct]] internal method, a + // TypeError exception is thrown. + // 3. Let boundArgs be the value of F's [[BoundArgs]] internal + // property. + // 4. Let args be a new list containing the same values as the + // list boundArgs in the same order followed by the same + // values as the list ExtraArgs in the same order. + // 5. Return the result of calling the [[Construct]] internal + // method of target providing args as the arguments. + + var result = target.apply( + this, + args.concat(_Array_slice_.call(arguments)) + ); + if (Object(result) === result) { + return result; + } + return this; + + } else { + // 15.3.4.5.1 [[Call]] + // When the [[Call]] internal method of a function object, F, + // which was created using the bind function is called with a + // this value and a list of arguments ExtraArgs, the following + // steps are taken: + // 1. Let boundArgs be the value of F's [[BoundArgs]] internal + // property. + // 2. Let boundThis be the value of F's [[BoundThis]] internal + // property. + // 3. Let target be the value of F's [[TargetFunction]] internal + // property. + // 4. Let args be a new list containing the same values as the + // list boundArgs in the same order followed by the same + // values as the list ExtraArgs in the same order. + // 5. Return the result of calling the [[Call]] internal method + // of target providing boundThis as the this value and + // providing args as the arguments. + + // equiv: target.call(this, ...boundArgs, ...args) + return target.apply( + that, + args.concat(_Array_slice_.call(arguments)) + ); + + } + + }; + + // 15. If the [[Class]] internal property of Target is "Function", then + // a. Let L be the length property of Target minus the length of A. + // b. Set the length own property of F to either 0 or L, whichever is + // larger. + // 16. Else set the length own property of F to 0. + + var boundLength = Math.max(0, target.length - args.length); + + // 17. Set the attributes of the length own property of F to the values + // specified in 15.3.5.1. + var boundArgs = []; + for (var i = 0; i < boundLength; i++) { + boundArgs.push("$" + i); + } + + // XXX Build a dynamic function with desired amount of arguments is the only + // way to set the length property of a function. + // In environments where Content Security Policies enabled (Chrome extensions, + // for ex.) all use of eval or Function costructor throws an exception. + // However in all of these environments Function.prototype.bind exists + // and so this code will never be executed. + var bound = Function("binder", "return function (" + boundArgs.join(",") + "){return binder.apply(this,arguments)}")(binder); + + if (target.prototype) { + Empty.prototype = target.prototype; + bound.prototype = new Empty(); + // Clean up dangling references. + Empty.prototype = null; + } + + // TODO + // 18. Set the [[Extensible]] internal property of F to true. + + // TODO + // 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3). + // 20. Call the [[DefineOwnProperty]] internal method of F with + // arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]: + // thrower, [[Enumerable]]: false, [[Configurable]]: false}, and + // false. + // 21. Call the [[DefineOwnProperty]] internal method of F with + // arguments "arguments", PropertyDescriptor {[[Get]]: thrower, + // [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false}, + // and false. + + // TODO + // NOTE Function objects created using Function.prototype.bind do not + // have a prototype property or the [[Code]], [[FormalParameters]], and + // [[Scope]] internal properties. + // XXX can't delete prototype in pure-js. + + // 22. Return F. + return bound; + } +}); + +// _Please note: Shortcuts are defined after `Function.prototype.bind` as we +// us it in defining shortcuts. +var owns = call.bind(ObjectPrototype.hasOwnProperty); + +// If JS engine supports accessors creating shortcuts. +var defineGetter; +var defineSetter; +var lookupGetter; +var lookupSetter; +var supportsAccessors; +if ((supportsAccessors = owns(ObjectPrototype, "__defineGetter__"))) { + defineGetter = call.bind(ObjectPrototype.__defineGetter__); + defineSetter = call.bind(ObjectPrototype.__defineSetter__); + lookupGetter = call.bind(ObjectPrototype.__lookupGetter__); + lookupSetter = call.bind(ObjectPrototype.__lookupSetter__); +} + +// +// Array +// ===== +// + +// ES5 15.4.4.12 +// http://es5.github.com/#x15.4.4.12 +var spliceNoopReturnsEmptyArray = (function () { + var a = [1, 2]; + var result = a.splice(); + return a.length === 2 && isArray(result) && result.length === 0; +}()); +defineProperties(ArrayPrototype, { + // Safari 5.0 bug where .splice() returns undefined + splice: function splice(start, deleteCount) { + if (arguments.length === 0) { + return []; + } else { + return array_splice.apply(this, arguments); + } + } +}, spliceNoopReturnsEmptyArray); + +var spliceWorksWithEmptyObject = (function () { + var obj = {}; + ArrayPrototype.splice.call(obj, 0, 0, 1); + return obj.length === 1; +}()); +defineProperties(ArrayPrototype, { + splice: function splice(start, deleteCount) { + if (arguments.length === 0) { return []; } + var args = arguments; + this.length = Math.max(toInteger(this.length), 0); + if (arguments.length > 0 && typeof deleteCount !== 'number') { + args = _Array_slice_.call(arguments); + if (args.length < 2) { + args.push(this.length - start); + } else { + args[1] = toInteger(deleteCount); + } + } + return array_splice.apply(this, args); + } +}, !spliceWorksWithEmptyObject); + +// ES5 15.4.4.12 +// http://es5.github.com/#x15.4.4.13 +// Return len+argCount. +// [bugfix, ielt8] +// IE < 8 bug: [].unshift(0) === undefined but should be "1" +var hasUnshiftReturnValueBug = [].unshift(0) !== 1; +defineProperties(ArrayPrototype, { + unshift: function () { + array_unshift.apply(this, arguments); + return this.length; + } +}, hasUnshiftReturnValueBug); + +// ES5 15.4.3.2 +// http://es5.github.com/#x15.4.3.2 +// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/isArray +defineProperties(Array, { isArray: isArray }); + +// The IsCallable() check in the Array functions +// has been replaced with a strict check on the +// internal class of the object to trap cases where +// the provided function was actually a regular +// expression literal, which in V8 and +// JavaScriptCore is a typeof "function". Only in +// V8 are regular expression literals permitted as +// reduce parameters, so it is desirable in the +// general case for the shim to match the more +// strict and common behavior of rejecting regular +// expressions. + +// ES5 15.4.4.18 +// http://es5.github.com/#x15.4.4.18 +// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/array/forEach + +// Check failure of by-index access of string characters (IE < 9) +// and failure of `0 in boxedString` (Rhino) +var boxedString = Object("a"); +var splitString = boxedString[0] !== "a" || !(0 in boxedString); + +var properlyBoxesContext = function properlyBoxed(method) { + // Check node 0.6.21 bug where third parameter is not boxed + var properlyBoxesNonStrict = true; + var properlyBoxesStrict = true; + if (method) { + method.call('foo', function (_, __, context) { + if (typeof context !== 'object') { properlyBoxesNonStrict = false; } + }); + + method.call([1], function () { + 'use strict'; + properlyBoxesStrict = typeof this === 'string'; + }, 'x'); + } + return !!method && properlyBoxesNonStrict && properlyBoxesStrict; +}; + +defineProperties(ArrayPrototype, { + forEach: function forEach(fun /*, thisp*/) { + var object = toObject(this), + self = splitString && isString(this) ? this.split('') : object, + thisp = arguments[1], + i = -1, + length = self.length >>> 0; + + // If no callback function or if callback is not a callable function + if (!isFunction(fun)) { + throw new TypeError(); // TODO message + } + + while (++i < length) { + if (i in self) { + // Invoke the callback function with call, passing arguments: + // context, property value, property key, thisArg object + // context + fun.call(thisp, self[i], i, object); + } + } + } +}, !properlyBoxesContext(ArrayPrototype.forEach)); + +// ES5 15.4.4.19 +// http://es5.github.com/#x15.4.4.19 +// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/map +defineProperties(ArrayPrototype, { + map: function map(fun /*, thisp*/) { + var object = toObject(this), + self = splitString && isString(this) ? this.split('') : object, + length = self.length >>> 0, + result = Array(length), + thisp = arguments[1]; + + // If no callback function or if callback is not a callable function + if (!isFunction(fun)) { + throw new TypeError(fun + " is not a function"); + } + + for (var i = 0; i < length; i++) { + if (i in self) { + result[i] = fun.call(thisp, self[i], i, object); + } + } + return result; + } +}, !properlyBoxesContext(ArrayPrototype.map)); + +// ES5 15.4.4.20 +// http://es5.github.com/#x15.4.4.20 +// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/filter +defineProperties(ArrayPrototype, { + filter: function filter(fun /*, thisp */) { + var object = toObject(this), + self = splitString && isString(this) ? this.split('') : object, + length = self.length >>> 0, + result = [], + value, + thisp = arguments[1]; + + // If no callback function or if callback is not a callable function + if (!isFunction(fun)) { + throw new TypeError(fun + " is not a function"); + } + + for (var i = 0; i < length; i++) { + if (i in self) { + value = self[i]; + if (fun.call(thisp, value, i, object)) { + result.push(value); + } + } + } + return result; + } +}, !properlyBoxesContext(ArrayPrototype.filter)); + +// ES5 15.4.4.16 +// http://es5.github.com/#x15.4.4.16 +// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/every +defineProperties(ArrayPrototype, { + every: function every(fun /*, thisp */) { + var object = toObject(this), + self = splitString && isString(this) ? this.split('') : object, + length = self.length >>> 0, + thisp = arguments[1]; + + // If no callback function or if callback is not a callable function + if (!isFunction(fun)) { + throw new TypeError(fun + " is not a function"); + } + + for (var i = 0; i < length; i++) { + if (i in self && !fun.call(thisp, self[i], i, object)) { + return false; + } + } + return true; + } +}, !properlyBoxesContext(ArrayPrototype.every)); + +// ES5 15.4.4.17 +// http://es5.github.com/#x15.4.4.17 +// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/some +defineProperties(ArrayPrototype, { + some: function some(fun /*, thisp */) { + var object = toObject(this), + self = splitString && isString(this) ? this.split('') : object, + length = self.length >>> 0, + thisp = arguments[1]; + + // If no callback function or if callback is not a callable function + if (!isFunction(fun)) { + throw new TypeError(fun + " is not a function"); + } + + for (var i = 0; i < length; i++) { + if (i in self && fun.call(thisp, self[i], i, object)) { + return true; + } + } + return false; + } +}, !properlyBoxesContext(ArrayPrototype.some)); + +// ES5 15.4.4.21 +// http://es5.github.com/#x15.4.4.21 +// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduce +var reduceCoercesToObject = false; +if (ArrayPrototype.reduce) { + reduceCoercesToObject = typeof ArrayPrototype.reduce.call('es5', function (_, __, ___, list) { return list; }) === 'object'; +} +defineProperties(ArrayPrototype, { + reduce: function reduce(fun /*, initial*/) { + var object = toObject(this), + self = splitString && isString(this) ? this.split('') : object, + length = self.length >>> 0; + + // If no callback function or if callback is not a callable function + if (!isFunction(fun)) { + throw new TypeError(fun + " is not a function"); + } + + // no value to return if no initial value and an empty array + if (!length && arguments.length === 1) { + throw new TypeError("reduce of empty array with no initial value"); + } + + var i = 0; + var result; + if (arguments.length >= 2) { + result = arguments[1]; + } else { + do { + if (i in self) { + result = self[i++]; + break; + } + + // if array contains no values, no initial value to return + if (++i >= length) { + throw new TypeError("reduce of empty array with no initial value"); + } + } while (true); + } + + for (; i < length; i++) { + if (i in self) { + result = fun.call(void 0, result, self[i], i, object); + } + } + + return result; + } +}, !reduceCoercesToObject); + +// ES5 15.4.4.22 +// http://es5.github.com/#x15.4.4.22 +// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduceRight +var reduceRightCoercesToObject = false; +if (ArrayPrototype.reduceRight) { + reduceRightCoercesToObject = typeof ArrayPrototype.reduceRight.call('es5', function (_, __, ___, list) { return list; }) === 'object'; +} +defineProperties(ArrayPrototype, { + reduceRight: function reduceRight(fun /*, initial*/) { + var object = toObject(this), + self = splitString && isString(this) ? this.split('') : object, + length = self.length >>> 0; + + // If no callback function or if callback is not a callable function + if (!isFunction(fun)) { + throw new TypeError(fun + " is not a function"); + } + + // no value to return if no initial value, empty array + if (!length && arguments.length === 1) { + throw new TypeError("reduceRight of empty array with no initial value"); + } + + var result, i = length - 1; + if (arguments.length >= 2) { + result = arguments[1]; + } else { + do { + if (i in self) { + result = self[i--]; + break; + } + + // if array contains no values, no initial value to return + if (--i < 0) { + throw new TypeError("reduceRight of empty array with no initial value"); + } + } while (true); + } + + if (i < 0) { + return result; + } + + do { + if (i in self) { + result = fun.call(void 0, result, self[i], i, object); + } + } while (i--); + + return result; + } +}, !reduceRightCoercesToObject); + +// ES5 15.4.4.14 +// http://es5.github.com/#x15.4.4.14 +// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/indexOf +var hasFirefox2IndexOfBug = Array.prototype.indexOf && [0, 1].indexOf(1, 2) !== -1; +defineProperties(ArrayPrototype, { + indexOf: function indexOf(sought /*, fromIndex */ ) { + var self = splitString && isString(this) ? this.split('') : toObject(this), + length = self.length >>> 0; + + if (!length) { + return -1; + } + + var i = 0; + if (arguments.length > 1) { + i = toInteger(arguments[1]); + } + + // handle negative indices + i = i >= 0 ? i : Math.max(0, length + i); + for (; i < length; i++) { + if (i in self && self[i] === sought) { + return i; + } + } + return -1; + } +}, hasFirefox2IndexOfBug); + +// ES5 15.4.4.15 +// http://es5.github.com/#x15.4.4.15 +// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/lastIndexOf +var hasFirefox2LastIndexOfBug = Array.prototype.lastIndexOf && [0, 1].lastIndexOf(0, -3) !== -1; +defineProperties(ArrayPrototype, { + lastIndexOf: function lastIndexOf(sought /*, fromIndex */) { + var self = splitString && isString(this) ? this.split('') : toObject(this), + length = self.length >>> 0; + + if (!length) { + return -1; + } + var i = length - 1; + if (arguments.length > 1) { + i = Math.min(i, toInteger(arguments[1])); + } + // handle negative indices + i = i >= 0 ? i : length - Math.abs(i); + for (; i >= 0; i--) { + if (i in self && sought === self[i]) { + return i; + } + } + return -1; + } +}, hasFirefox2LastIndexOfBug); + +// +// Object +// ====== +// + +// ES5 15.2.3.14 +// http://es5.github.com/#x15.2.3.14 + +// http://whattheheadsaid.com/2010/10/a-safer-object-keys-compatibility-implementation +var hasDontEnumBug = !({'toString': null}).propertyIsEnumerable('toString'), + hasProtoEnumBug = (function () {}).propertyIsEnumerable('prototype'), + dontEnums = [ + "toString", + "toLocaleString", + "valueOf", + "hasOwnProperty", + "isPrototypeOf", + "propertyIsEnumerable", + "constructor" + ], + dontEnumsLength = dontEnums.length; + +defineProperties(Object, { + keys: function keys(object) { + var isFn = isFunction(object), + isArgs = isArguments(object), + isObject = object !== null && typeof object === 'object', + isStr = isObject && isString(object); + + if (!isObject && !isFn && !isArgs) { + throw new TypeError("Object.keys called on a non-object"); + } + + var theKeys = []; + var skipProto = hasProtoEnumBug && isFn; + if (isStr || isArgs) { + for (var i = 0; i < object.length; ++i) { + theKeys.push(String(i)); + } + } else { + for (var name in object) { + if (!(skipProto && name === 'prototype') && owns(object, name)) { + theKeys.push(String(name)); + } + } + } + + if (hasDontEnumBug) { + var ctor = object.constructor, + skipConstructor = ctor && ctor.prototype === object; + for (var j = 0; j < dontEnumsLength; j++) { + var dontEnum = dontEnums[j]; + if (!(skipConstructor && dontEnum === 'constructor') && owns(object, dontEnum)) { + theKeys.push(dontEnum); + } + } + } + return theKeys; + } +}); + +var keysWorksWithArguments = Object.keys && (function () { + // Safari 5.0 bug + return Object.keys(arguments).length === 2; +}(1, 2)); +var originalKeys = Object.keys; +defineProperties(Object, { + keys: function keys(object) { + if (isArguments(object)) { + return originalKeys(ArrayPrototype.slice.call(object)); + } else { + return originalKeys(object); + } + } +}, !keysWorksWithArguments); + +// +// Date +// ==== +// + +// ES5 15.9.5.43 +// http://es5.github.com/#x15.9.5.43 +// This function returns a String value represent the instance in time +// represented by this Date object. The format of the String is the Date Time +// string format defined in 15.9.1.15. All fields are present in the String. +// The time zone is always UTC, denoted by the suffix Z. If the time value of +// this object is not a finite Number a RangeError exception is thrown. +var negativeDate = -62198755200000; +var negativeYearString = "-000001"; +var hasNegativeDateBug = Date.prototype.toISOString && new Date(negativeDate).toISOString().indexOf(negativeYearString) === -1; + +defineProperties(Date.prototype, { + toISOString: function toISOString() { + var result, length, value, year, month; + if (!isFinite(this)) { + throw new RangeError("Date.prototype.toISOString called on non-finite value."); + } + + year = this.getUTCFullYear(); + + month = this.getUTCMonth(); + // see https://github.com/es-shims/es5-shim/issues/111 + year += Math.floor(month / 12); + month = (month % 12 + 12) % 12; + + // the date time string format is specified in 15.9.1.15. + result = [month + 1, this.getUTCDate(), this.getUTCHours(), this.getUTCMinutes(), this.getUTCSeconds()]; + year = ( + (year < 0 ? "-" : (year > 9999 ? "+" : "")) + + ("00000" + Math.abs(year)).slice(0 <= year && year <= 9999 ? -4 : -6) + ); + + length = result.length; + while (length--) { + value = result[length]; + // pad months, days, hours, minutes, and seconds to have two + // digits. + if (value < 10) { + result[length] = "0" + value; + } + } + // pad milliseconds to have three digits. + return ( + year + "-" + result.slice(0, 2).join("-") + + "T" + result.slice(2).join(":") + "." + + ("000" + this.getUTCMilliseconds()).slice(-3) + "Z" + ); + } +}, hasNegativeDateBug); + + +// ES5 15.9.5.44 +// http://es5.github.com/#x15.9.5.44 +// This function provides a String representation of a Date object for use by +// JSON.stringify (15.12.3). +var dateToJSONIsSupported = false; +try { + dateToJSONIsSupported = ( + Date.prototype.toJSON && + new Date(NaN).toJSON() === null && + new Date(negativeDate).toJSON().indexOf(negativeYearString) !== -1 && + Date.prototype.toJSON.call({ // generic + toISOString: function () { + return true; + } + }) + ); +} catch (e) { +} +if (!dateToJSONIsSupported) { + Date.prototype.toJSON = function toJSON(key) { + // When the toJSON method is called with argument key, the following + // steps are taken: + + // 1. Let O be the result of calling ToObject, giving it the this + // value as its argument. + // 2. Let tv be toPrimitive(O, hint Number). + var o = Object(this), + tv = toPrimitive(o), + toISO; + // 3. If tv is a Number and is not finite, return null. + if (typeof tv === "number" && !isFinite(tv)) { + return null; + } + // 4. Let toISO be the result of calling the [[Get]] internal method of + // O with argument "toISOString". + toISO = o.toISOString; + // 5. If IsCallable(toISO) is false, throw a TypeError exception. + if (typeof toISO !== "function") { + throw new TypeError("toISOString property is not callable"); + } + // 6. Return the result of calling the [[Call]] internal method of + // toISO with O as the this value and an empty argument list. + return toISO.call(o); + + // NOTE 1 The argument is ignored. + + // NOTE 2 The toJSON function is intentionally generic; it does not + // require that its this value be a Date object. Therefore, it can be + // transferred to other kinds of objects for use as a method. However, + // it does require that any such object have a toISOString method. An + // object is free to use the argument key to filter its + // stringification. + }; +} + +// ES5 15.9.4.2 +// http://es5.github.com/#x15.9.4.2 +// based on work shared by Daniel Friesen (dantman) +// http://gist.github.com/303249 +var supportsExtendedYears = Date.parse('+033658-09-27T01:46:40.000Z') === 1e15; +var acceptsInvalidDates = !isNaN(Date.parse('2012-04-04T24:00:00.500Z')) || !isNaN(Date.parse('2012-11-31T23:59:59.000Z')); +var doesNotParseY2KNewYear = isNaN(Date.parse("2000-01-01T00:00:00.000Z")); +if (!Date.parse || doesNotParseY2KNewYear || acceptsInvalidDates || !supportsExtendedYears) { + // XXX global assignment won't work in embeddings that use + // an alternate object for the context. + Date = (function (NativeDate) { + + // Date.length === 7 + function Date(Y, M, D, h, m, s, ms) { + var length = arguments.length; + if (this instanceof NativeDate) { + var date = length === 1 && String(Y) === Y ? // isString(Y) + // We explicitly pass it through parse: + new NativeDate(Date.parse(Y)) : + // We have to manually make calls depending on argument + // length here + length >= 7 ? new NativeDate(Y, M, D, h, m, s, ms) : + length >= 6 ? new NativeDate(Y, M, D, h, m, s) : + length >= 5 ? new NativeDate(Y, M, D, h, m) : + length >= 4 ? new NativeDate(Y, M, D, h) : + length >= 3 ? new NativeDate(Y, M, D) : + length >= 2 ? new NativeDate(Y, M) : + length >= 1 ? new NativeDate(Y) : + new NativeDate(); + // Prevent mixups with unfixed Date object + date.constructor = Date; + return date; + } + return NativeDate.apply(this, arguments); + } + + // 15.9.1.15 Date Time String Format. + var isoDateExpression = new RegExp("^" + + "(\\d{4}|[\+\-]\\d{6})" + // four-digit year capture or sign + + // 6-digit extended year + "(?:-(\\d{2})" + // optional month capture + "(?:-(\\d{2})" + // optional day capture + "(?:" + // capture hours:minutes:seconds.milliseconds + "T(\\d{2})" + // hours capture + ":(\\d{2})" + // minutes capture + "(?:" + // optional :seconds.milliseconds + ":(\\d{2})" + // seconds capture + "(?:(\\.\\d{1,}))?" + // milliseconds capture + ")?" + + "(" + // capture UTC offset component + "Z|" + // UTC capture + "(?:" + // offset specifier +/-hours:minutes + "([-+])" + // sign capture + "(\\d{2})" + // hours offset capture + ":(\\d{2})" + // minutes offset capture + ")" + + ")?)?)?)?" + + "$"); + + var months = [ + 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 + ]; + + function dayFromMonth(year, month) { + var t = month > 1 ? 1 : 0; + return ( + months[month] + + Math.floor((year - 1969 + t) / 4) - + Math.floor((year - 1901 + t) / 100) + + Math.floor((year - 1601 + t) / 400) + + 365 * (year - 1970) + ); + } + + function toUTC(t) { + return Number(new NativeDate(1970, 0, 1, 0, 0, 0, t)); + } + + // Copy any custom methods a 3rd party library may have added + for (var key in NativeDate) { + Date[key] = NativeDate[key]; + } + + // Copy "native" methods explicitly; they may be non-enumerable + Date.now = NativeDate.now; + Date.UTC = NativeDate.UTC; + Date.prototype = NativeDate.prototype; + Date.prototype.constructor = Date; + + // Upgrade Date.parse to handle simplified ISO 8601 strings + Date.parse = function parse(string) { + var match = isoDateExpression.exec(string); + if (match) { + // parse months, days, hours, minutes, seconds, and milliseconds + // provide default values if necessary + // parse the UTC offset component + var year = Number(match[1]), + month = Number(match[2] || 1) - 1, + day = Number(match[3] || 1) - 1, + hour = Number(match[4] || 0), + minute = Number(match[5] || 0), + second = Number(match[6] || 0), + millisecond = Math.floor(Number(match[7] || 0) * 1000), + // When time zone is missed, local offset should be used + // (ES 5.1 bug) + // see https://bugs.ecmascript.org/show_bug.cgi?id=112 + isLocalTime = Boolean(match[4] && !match[8]), + signOffset = match[9] === "-" ? 1 : -1, + hourOffset = Number(match[10] || 0), + minuteOffset = Number(match[11] || 0), + result; + if ( + hour < ( + minute > 0 || second > 0 || millisecond > 0 ? + 24 : 25 + ) && + minute < 60 && second < 60 && millisecond < 1000 && + month > -1 && month < 12 && hourOffset < 24 && + minuteOffset < 60 && // detect invalid offsets + day > -1 && + day < ( + dayFromMonth(year, month + 1) - + dayFromMonth(year, month) + ) + ) { + result = ( + (dayFromMonth(year, month) + day) * 24 + + hour + + hourOffset * signOffset + ) * 60; + result = ( + (result + minute + minuteOffset * signOffset) * 60 + + second + ) * 1000 + millisecond; + if (isLocalTime) { + result = toUTC(result); + } + if (-8.64e15 <= result && result <= 8.64e15) { + return result; + } + } + return NaN; + } + return NativeDate.parse.apply(this, arguments); + }; + + return Date; + })(Date); +} + +// ES5 15.9.4.4 +// http://es5.github.com/#x15.9.4.4 +if (!Date.now) { + Date.now = function now() { + return new Date().getTime(); + }; +} + + +// +// Number +// ====== +// + +// ES5.1 15.7.4.5 +// http://es5.github.com/#x15.7.4.5 +var hasToFixedBugs = NumberPrototype.toFixed && ( + (0.00008).toFixed(3) !== '0.000' + || (0.9).toFixed(0) !== '1' + || (1.255).toFixed(2) !== '1.25' + || (1000000000000000128).toFixed(0) !== "1000000000000000128" +); + +var toFixedHelpers = { + base: 1e7, + size: 6, + data: [0, 0, 0, 0, 0, 0], + multiply: function multiply(n, c) { + var i = -1; + while (++i < toFixedHelpers.size) { + c += n * toFixedHelpers.data[i]; + toFixedHelpers.data[i] = c % toFixedHelpers.base; + c = Math.floor(c / toFixedHelpers.base); + } + }, + divide: function divide(n) { + var i = toFixedHelpers.size, c = 0; + while (--i >= 0) { + c += toFixedHelpers.data[i]; + toFixedHelpers.data[i] = Math.floor(c / n); + c = (c % n) * toFixedHelpers.base; + } + }, + numToString: function numToString() { + var i = toFixedHelpers.size; + var s = ''; + while (--i >= 0) { + if (s !== '' || i === 0 || toFixedHelpers.data[i] !== 0) { + var t = String(toFixedHelpers.data[i]); + if (s === '') { + s = t; + } else { + s += '0000000'.slice(0, 7 - t.length) + t; + } + } + } + return s; + }, + pow: function pow(x, n, acc) { + return (n === 0 ? acc : (n % 2 === 1 ? pow(x, n - 1, acc * x) : pow(x * x, n / 2, acc))); + }, + log: function log(x) { + var n = 0; + while (x >= 4096) { + n += 12; + x /= 4096; + } + while (x >= 2) { + n += 1; + x /= 2; + } + return n; + } +}; + +defineProperties(NumberPrototype, { + toFixed: function toFixed(fractionDigits) { + var f, x, s, m, e, z, j, k; + + // Test for NaN and round fractionDigits down + f = Number(fractionDigits); + f = f !== f ? 0 : Math.floor(f); + + if (f < 0 || f > 20) { + throw new RangeError("Number.toFixed called with invalid number of decimals"); + } + + x = Number(this); + + // Test for NaN + if (x !== x) { + return "NaN"; + } + + // If it is too big or small, return the string value of the number + if (x <= -1e21 || x >= 1e21) { + return String(x); + } + + s = ""; + + if (x < 0) { + s = "-"; + x = -x; + } + + m = "0"; + + if (x > 1e-21) { + // 1e-21 < x < 1e21 + // -70 < log2(x) < 70 + e = toFixedHelpers.log(x * toFixedHelpers.pow(2, 69, 1)) - 69; + z = (e < 0 ? x * toFixedHelpers.pow(2, -e, 1) : x / toFixedHelpers.pow(2, e, 1)); + z *= 0x10000000000000; // Math.pow(2, 52); + e = 52 - e; + + // -18 < e < 122 + // x = z / 2 ^ e + if (e > 0) { + toFixedHelpers.multiply(0, z); + j = f; + + while (j >= 7) { + toFixedHelpers.multiply(1e7, 0); + j -= 7; + } + + toFixedHelpers.multiply(toFixedHelpers.pow(10, j, 1), 0); + j = e - 1; + + while (j >= 23) { + toFixedHelpers.divide(1 << 23); + j -= 23; + } + + toFixedHelpers.divide(1 << j); + toFixedHelpers.multiply(1, 1); + toFixedHelpers.divide(2); + m = toFixedHelpers.numToString(); + } else { + toFixedHelpers.multiply(0, z); + toFixedHelpers.multiply(1 << (-e), 0); + m = toFixedHelpers.numToString() + '0.00000000000000000000'.slice(2, 2 + f); + } + } + + if (f > 0) { + k = m.length; + + if (k <= f) { + m = s + '0.0000000000000000000'.slice(0, f - k + 2) + m; + } else { + m = s + m.slice(0, k - f) + '.' + m.slice(k - f); + } + } else { + m = s + m; + } + + return m; + } +}, hasToFixedBugs); + + +// +// String +// ====== +// + +// ES5 15.5.4.14 +// http://es5.github.com/#x15.5.4.14 + +// [bugfix, IE lt 9, firefox 4, Konqueror, Opera, obscure browsers] +// Many browsers do not split properly with regular expressions or they +// do not perform the split correctly under obscure conditions. +// See http://blog.stevenlevithan.com/archives/cross-browser-split +// I've tested in many browsers and this seems to cover the deviant ones: +// 'ab'.split(/(?:ab)*/) should be ["", ""], not [""] +// '.'.split(/(.?)(.?)/) should be ["", ".", "", ""], not ["", ""] +// 'tesst'.split(/(s)*/) should be ["t", undefined, "e", "s", "t"], not +// [undefined, "t", undefined, "e", ...] +// ''.split(/.?/) should be [], not [""] +// '.'.split(/()()/) should be ["."], not ["", "", "."] + +var string_split = StringPrototype.split; +if ( + 'ab'.split(/(?:ab)*/).length !== 2 || + '.'.split(/(.?)(.?)/).length !== 4 || + 'tesst'.split(/(s)*/)[1] === "t" || + 'test'.split(/(?:)/, -1).length !== 4 || + ''.split(/.?/).length || + '.'.split(/()()/).length > 1 +) { + (function () { + var compliantExecNpcg = /()??/.exec("")[1] === void 0; // NPCG: nonparticipating capturing group + + StringPrototype.split = function (separator, limit) { + var string = this; + if (separator === void 0 && limit === 0) { + return []; + } + + // If `separator` is not a regex, use native split + if (_toString.call(separator) !== "[object RegExp]") { + return string_split.call(this, separator, limit); + } + + var output = [], + flags = (separator.ignoreCase ? "i" : "") + + (separator.multiline ? "m" : "") + + (separator.extended ? "x" : "") + // Proposed for ES6 + (separator.sticky ? "y" : ""), // Firefox 3+ + lastLastIndex = 0, + // Make `global` and avoid `lastIndex` issues by working with a copy + separator2, match, lastIndex, lastLength; + separator = new RegExp(separator.source, flags + "g"); + string += ""; // Type-convert + if (!compliantExecNpcg) { + // Doesn't need flags gy, but they don't hurt + separator2 = new RegExp("^" + separator.source + "$(?!\\s)", flags); + } + /* Values for `limit`, per the spec: + * If undefined: 4294967295 // Math.pow(2, 32) - 1 + * If 0, Infinity, or NaN: 0 + * If positive number: limit = Math.floor(limit); if (limit > 4294967295) limit -= 4294967296; + * If negative number: 4294967296 - Math.floor(Math.abs(limit)) + * If other: Type-convert, then use the above rules + */ + limit = limit === void 0 ? + -1 >>> 0 : // Math.pow(2, 32) - 1 + ToUint32(limit); + while (match = separator.exec(string)) { + // `separator.lastIndex` is not reliable cross-browser + lastIndex = match.index + match[0].length; + if (lastIndex > lastLastIndex) { + output.push(string.slice(lastLastIndex, match.index)); + // Fix browsers whose `exec` methods don't consistently return `undefined` for + // nonparticipating capturing groups + if (!compliantExecNpcg && match.length > 1) { + match[0].replace(separator2, function () { + for (var i = 1; i < arguments.length - 2; i++) { + if (arguments[i] === void 0) { + match[i] = void 0; + } + } + }); + } + if (match.length > 1 && match.index < string.length) { + ArrayPrototype.push.apply(output, match.slice(1)); + } + lastLength = match[0].length; + lastLastIndex = lastIndex; + if (output.length >= limit) { + break; + } + } + if (separator.lastIndex === match.index) { + separator.lastIndex++; // Avoid an infinite loop + } + } + if (lastLastIndex === string.length) { + if (lastLength || !separator.test("")) { + output.push(""); + } + } else { + output.push(string.slice(lastLastIndex)); + } + return output.length > limit ? output.slice(0, limit) : output; + }; + }()); + +// [bugfix, chrome] +// If separator is undefined, then the result array contains just one String, +// which is the this value (converted to a String). If limit is not undefined, +// then the output array is truncated so that it contains no more than limit +// elements. +// "0".split(undefined, 0) -> [] +} else if ("0".split(void 0, 0).length) { + StringPrototype.split = function split(separator, limit) { + if (separator === void 0 && limit === 0) { return []; } + return string_split.call(this, separator, limit); + }; +} + +var str_replace = StringPrototype.replace; +var replaceReportsGroupsCorrectly = (function () { + var groups = []; + 'x'.replace(/x(.)?/g, function (match, group) { + groups.push(group); + }); + return groups.length === 1 && typeof groups[0] === 'undefined'; +}()); + +if (!replaceReportsGroupsCorrectly) { + StringPrototype.replace = function replace(searchValue, replaceValue) { + var isFn = isFunction(replaceValue); + var hasCapturingGroups = isRegex(searchValue) && (/\)[*?]/).test(searchValue.source); + if (!isFn || !hasCapturingGroups) { + return str_replace.call(this, searchValue, replaceValue); + } else { + var wrappedReplaceValue = function (match) { + var length = arguments.length; + var originalLastIndex = searchValue.lastIndex; + searchValue.lastIndex = 0; + var args = searchValue.exec(match); + searchValue.lastIndex = originalLastIndex; + args.push(arguments[length - 2], arguments[length - 1]); + return replaceValue.apply(this, args); + }; + return str_replace.call(this, searchValue, wrappedReplaceValue); + } + }; +} + +// ECMA-262, 3rd B.2.3 +// Not an ECMAScript standard, although ECMAScript 3rd Edition has a +// non-normative section suggesting uniform semantics and it should be +// normalized across all browsers +// [bugfix, IE lt 9] IE < 9 substr() with negative value not working in IE +var string_substr = StringPrototype.substr; +var hasNegativeSubstrBug = "".substr && "0b".substr(-1) !== "b"; +defineProperties(StringPrototype, { + substr: function substr(start, length) { + return string_substr.call( + this, + start < 0 ? ((start = this.length + start) < 0 ? 0 : start) : start, + length + ); + } +}, hasNegativeSubstrBug); + +// ES5 15.5.4.20 +// whitespace from: http://es5.github.io/#x15.5.4.20 +var ws = "\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003" + + "\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028" + + "\u2029\uFEFF"; +var zeroWidth = '\u200b'; +var wsRegexChars = "[" + ws + "]"; +var trimBeginRegexp = new RegExp("^" + wsRegexChars + wsRegexChars + "*"); +var trimEndRegexp = new RegExp(wsRegexChars + wsRegexChars + "*$"); +var hasTrimWhitespaceBug = StringPrototype.trim && (ws.trim() || !zeroWidth.trim()); +defineProperties(StringPrototype, { + // http://blog.stevenlevithan.com/archives/faster-trim-javascript + // http://perfectionkills.com/whitespace-deviations/ + trim: function trim() { + if (this === void 0 || this === null) { + throw new TypeError("can't convert " + this + " to object"); + } + return String(this).replace(trimBeginRegexp, "").replace(trimEndRegexp, ""); + } +}, hasTrimWhitespaceBug); + +// ES-5 15.1.2.2 +if (parseInt(ws + '08') !== 8 || parseInt(ws + '0x16') !== 22) { + parseInt = (function (origParseInt) { + var hexRegex = /^0[xX]/; + return function parseIntES5(str, radix) { + str = String(str).trim(); + if (!Number(radix)) { + radix = hexRegex.test(str) ? 16 : 10; + } + return origParseInt(str, radix); + }; + }(parseInt)); +} + +})); |