plan4learning: comparison src/p4l/static/p4l/lib/angular/angular.js

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src/p4l/static/p4l/lib/angular/angular.js

changeset 166

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-:64aae3fee9d5
+:0f99a7fff851
+/**
+* @license AngularJS v1.2.15
+* (c) 2010-2014 Google, Inc. http://angularjs.org
+* License: MIT
+*/
+(function(window, document, undefined) {'use strict';
+/**
+* @description
+*
+* This object provides a utility for producing rich Error messages within
+* Angular. It can be called as follows:
+*
+* var exampleMinErr = minErr('example');
+* throw exampleMinErr('one', 'This {0} is {1}', foo, bar);
+*
+* The above creates an instance of minErr in the example namespace. The
+* resulting error will have a namespaced error code of example.one.  The
+* resulting error will replace {0} with the value of foo, and {1} with the
+* value of bar. The object is not restricted in the number of arguments it can
+* take.
+*
+* If fewer arguments are specified than necessary for interpolation, the extra
+* interpolation markers will be preserved in the final string.
+*
+* Since data will be parsed statically during a build step, some restrictions
+* are applied with respect to how minErr instances are created and called.
+* Instances should have names of the form namespaceMinErr for a minErr created
+* using minErr('namespace') . Error codes, namespaces and template strings
+* should all be static strings, not variables or general expressions.
+*
+* @param {string} module The namespace to use for the new minErr instance.
+* @returns {function(code:string, template:string, ...templateArgs): Error} minErr instance
+*/
+function minErr(module) {
+return function () {
+var code = arguments[0],
+prefix = '[' + (module ? module + ':' : '') + code + '] ',
+template = arguments[1],
+templateArgs = arguments,
+stringify = function (obj) {
+if (typeof obj === 'function') {
+return obj.toString().replace(/ \{[\s\S]*$/, '');
+} else if (typeof obj === 'undefined') {
+return 'undefined';
+} else if (typeof obj !== 'string') {
+return JSON.stringify(obj);
+}
+return obj;
+},
+message, i;
+message = prefix + template.replace(/\{\d+\}/g, function (match) {
+var index = +match.slice(1, -1), arg;
+if (index + 2 < templateArgs.length) {
+arg = templateArgs[index + 2];
+if (typeof arg === 'function') {
+return arg.toString().replace(/ ?\{[\s\S]*$/, '');
+} else if (typeof arg === 'undefined') {
+return 'undefined';
+} else if (typeof arg !== 'string') {
+return toJson(arg);
+}
+return arg;
+}
+return match;
+});
+message = message + '\nhttp://errors.angularjs.org/1.2.15/' +
+(module ? module + '/' : '') + code;
+for (i = 2; i < arguments.length; i++) {
+message = message + (i == 2 ? '?' : '&') + 'p' + (i-2) + '=' +
+encodeURIComponent(stringify(arguments[i]));
+}
+return new Error(message);
+};
+}
+/* We need to tell jshint what variables are being exported */
+/* global
+-angular,
+-msie,
+-jqLite,
+-jQuery,
+-slice,
+-push,
+-toString,
+-ngMinErr,
+-_angular,
+-angularModule,
+-nodeName_,
+-uid,
+-lowercase,
+-uppercase,
+-manualLowercase,
+-manualUppercase,
+-nodeName_,
+-isArrayLike,
+-forEach,
+-sortedKeys,
+-forEachSorted,
+-reverseParams,
+-nextUid,
+-setHashKey,
+-extend,
+-int,
+-inherit,
+-noop,
+-identity,
+-valueFn,
+-isUndefined,
+-isDefined,
+-isObject,
+-isString,
+-isNumber,
+-isDate,
+-isArray,
+-isFunction,
+-isRegExp,
+-isWindow,
+-isScope,
+-isFile,
+-isBlob,
+-isBoolean,
+-trim,
+-isElement,
+-makeMap,
+-map,
+-size,
+-includes,
+-indexOf,
+-arrayRemove,
+-isLeafNode,
+-copy,
+-shallowCopy,
+-equals,
+-csp,
+-concat,
+-sliceArgs,
+-bind,
+-toJsonReplacer,
+-toJson,
+-fromJson,
+-toBoolean,
+-startingTag,
+-tryDecodeURIComponent,
+-parseKeyValue,
+-toKeyValue,
+-encodeUriSegment,
+-encodeUriQuery,
+-angularInit,
+-bootstrap,
+-snake_case,
+-bindJQuery,
+-assertArg,
+-assertArgFn,
+-assertNotHasOwnProperty,
+-getter,
+-getBlockElements,
+-hasOwnProperty,
+*/
+////////////////////////////////////
+/**
+* @ngdoc module
+* @name ng
+* @module ng
+* @description
+*
+* # ng (core module)
+* The ng module is loaded by default when an AngularJS application is started. The module itself
+* contains the essential components for an AngularJS application to function. The table below
+* lists a high level breakdown of each of the services/factories, filters, directives and testing
+* components available within this core module.
+*
+* <div doc-module-components="ng"></div>
+*/
+/**
+* @ngdoc function
+* @name angular.lowercase
+* @module ng
+* @function
+*
+* @description Converts the specified string to lowercase.
+* @param {string} string String to be converted to lowercase.
+* @returns {string} Lowercased string.
+*/
+var lowercase = function(string){return isString(string) ? string.toLowerCase() : string;};
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+/**
+* @ngdoc function
+* @name angular.uppercase
+* @module ng
+* @function
+*
+* @description Converts the specified string to uppercase.
+* @param {string} string String to be converted to uppercase.
+* @returns {string} Uppercased string.
+*/
+var uppercase = function(string){return isString(string) ? string.toUpperCase() : string;};
+var manualLowercase = function(s) {
+/* jshint bitwise: false */
+return isString(s)
+? s.replace(/[A-Z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) | 32);})
+: s;
+};
+var manualUppercase = function(s) {
+/* jshint bitwise: false */
+return isString(s)
+? s.replace(/[a-z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) & ~32);})
+: s;
+};
+// String#toLowerCase and String#toUpperCase don't produce correct results in browsers with Turkish
+// locale, for this reason we need to detect this case and redefine lowercase/uppercase methods
+// with correct but slower alternatives.
+if ('i' !== 'I'.toLowerCase()) {
+lowercase = manualLowercase;
+uppercase = manualUppercase;
+}
+var /** holds major version number for IE or NaN for real browsers */
+msie,
+jqLite,           // delay binding since jQuery could be loaded after us.
+jQuery,           // delay binding
+slice             = [].slice,
+push              = [].push,
+toString          = Object.prototype.toString,
+ngMinErr          = minErr('ng'),
+_angular          = window.angular,
+/** @name angular */
+angular           = window.angular || (window.angular = {}),
+angularModule,
+nodeName_,
+uid               = ['0', '0', '0'];
+/**
+* IE 11 changed the format of the UserAgent string.
+* See http://msdn.microsoft.com/en-us/library/ms537503.aspx
+*/
+msie = int((/msie (\d+)/.exec(lowercase(navigator.userAgent)) || [])[1]);
+if (isNaN(msie)) {
+msie = int((/trident\/.*; rv:(\d+)/.exec(lowercase(navigator.userAgent)) || [])[1]);
+}
+/**
+* @private
+* @param {*} obj
+* @return {boolean} Returns true if `obj` is an array or array-like object (NodeList, Arguments,
+*                   String ...)
+*/
+function isArrayLike(obj) {
+if (obj == null || isWindow(obj)) {
+return false;
+}
+var length = obj.length;
+if (obj.nodeType === 1 && length) {
+return true;
+}
+return isString(obj) || isArray(obj) || length === 0 ||
+typeof length === 'number' && length > 0 && (length - 1) in obj;
+}
+/**
+* @ngdoc function
+* @name angular.forEach
+* @module ng
+* @function
+*
+* @description
+* Invokes the `iterator` function once for each item in `obj` collection, which can be either an
+* object or an array. The `iterator` function is invoked with `iterator(value, key)`, where `value`
+* is the value of an object property or an array element and `key` is the object property key or
+* array element index. Specifying a `context` for the function is optional.
+*
+* It is worth noting that `.forEach` does not iterate over inherited properties because it filters
+* using the `hasOwnProperty` method.
+*
+```js
+var values = {name: 'misko', gender: 'male'};
+var log = [];
+angular.forEach(values, function(value, key){
+this.push(key + ': ' + value);
+}, log);
+expect(log).toEqual(['name: misko', 'gender: male']);
+```
+*
+* @param {Object|Array} obj Object to iterate over.
+* @param {Function} iterator Iterator function.
+* @param {Object=} context Object to become context (`this`) for the iterator function.
+* @returns {Object|Array} Reference to `obj`.
+*/
+function forEach(obj, iterator, context) {
+var key;
+if (obj) {
+if (isFunction(obj)){
+for (key in obj) {
+// Need to check if hasOwnProperty exists,
+// as on IE8 the result of querySelectorAll is an object without a hasOwnProperty function
+if (key != 'prototype' && key != 'length' && key != 'name' && (!obj.hasOwnProperty || obj.hasOwnProperty(key))) {
+iterator.call(context, obj[key], key);
+}
+}
+} else if (obj.forEach && obj.forEach !== forEach) {
+obj.forEach(iterator, context);
+} else if (isArrayLike(obj)) {
+for (key = 0; key < obj.length; key++)
+iterator.call(context, obj[key], key);
+} else {
+for (key in obj) {
+if (obj.hasOwnProperty(key)) {
+iterator.call(context, obj[key], key);
+}
+}
+}
+}
+return obj;
+}
+function sortedKeys(obj) {
+var keys = [];
+for (var key in obj) {
+if (obj.hasOwnProperty(key)) {
+keys.push(key);
+}
+}
+return keys.sort();
+}
+function forEachSorted(obj, iterator, context) {
+var keys = sortedKeys(obj);
+for ( var i = 0; i < keys.length; i++) {
+iterator.call(context, obj[keys[i]], keys[i]);
+}
+return keys;
+}
+/**
+* when using forEach the params are value, key, but it is often useful to have key, value.
+* @param {function(string, *)} iteratorFn
+* @returns {function(*, string)}
+*/
+function reverseParams(iteratorFn) {
+return function(value, key) { iteratorFn(key, value); };
+}
+/**
+* A consistent way of creating unique IDs in angular. The ID is a sequence of alpha numeric
+* characters such as '012ABC'. The reason why we are not using simply a number counter is that
+* the number string gets longer over time, and it can also overflow, where as the nextId
+* will grow much slower, it is a string, and it will never overflow.
+*
+* @returns {string} an unique alpha-numeric string
+*/
+function nextUid() {
+var index = uid.length;
+var digit;
+while(index) {
+index--;
+digit = uid[index].charCodeAt(0);
+if (digit == 57 /*'9'*/) {
+uid[index] = 'A';
+return uid.join('');
+}
+if (digit == 90  /*'Z'*/) {
+uid[index] = '0';
+} else {
+uid[index] = String.fromCharCode(digit + 1);
+return uid.join('');
+}
+}
+uid.unshift('0');
+return uid.join('');
+}
+/**
+* Set or clear the hashkey for an object.
+* @param obj object
+* @param h the hashkey (!truthy to delete the hashkey)
+*/
+function setHashKey(obj, h) {
+if (h) {
+obj.$$hashKey = h;
+}
+else {
+delete obj.$$hashKey;
+}
+}
+/**
+* @ngdoc function
+* @name angular.extend
+* @module ng
+* @function
+*
+* @description
+* Extends the destination object `dst` by copying all of the properties from the `src` object(s)
+* to `dst`. You can specify multiple `src` objects.
+*
+* @param {Object} dst Destination object.
+* @param {...Object} src Source object(s).
+* @returns {Object} Reference to `dst`.
+*/
+function extend(dst) {
+var h = dst.$$hashKey;
+forEach(arguments, function(obj){
+if (obj !== dst) {
+forEach(obj, function(value, key){
+dst[key] = value;
+});
+}
+});
+setHashKey(dst,h);
+return dst;
+}
+function int(str) {
+return parseInt(str, 10);
+}
+function inherit(parent, extra) {
+return extend(new (extend(function() {}, {prototype:parent}))(), extra);
+}
+/**
+* @ngdoc function
+* @name angular.noop
+* @module ng
+* @function
+*
+* @description
+* A function that performs no operations. This function can be useful when writing code in the
+* functional style.
+```js
+function foo(callback) {
+var result = calculateResult();
+(callback || angular.noop)(result);
+}
+```
+*/
+function noop() {}
+noop.$inject = [];
+/**
+* @ngdoc function
+* @name angular.identity
+* @module ng
+* @function
+*
+* @description
+* A function that returns its first argument. This function is useful when writing code in the
+* functional style.
+*
+```js
+function transformer(transformationFn, value) {
+return (transformationFn || angular.identity)(value);
+};
+```
+*/
+function identity($) {return $;}
+identity.$inject = [];
+function valueFn(value) {return function() {return value;};}
+/**
+* @ngdoc function
+* @name angular.isUndefined
+* @module ng
+* @function
+*
+* @description
+* Determines if a reference is undefined.
+*
+* @param {*} value Reference to check.
+* @returns {boolean} True if `value` is undefined.
+*/
+function isUndefined(value){return typeof value === 'undefined';}
+/**
+* @ngdoc function
+* @name angular.isDefined
+* @module ng
+* @function
+*
+* @description
+* Determines if a reference is defined.
+*
+* @param {*} value Reference to check.
+* @returns {boolean} True if `value` is defined.
+*/
+function isDefined(value){return typeof value !== 'undefined';}
+/**
+* @ngdoc function
+* @name angular.isObject
+* @module ng
+* @function
+*
+* @description
+* Determines if a reference is an `Object`. Unlike `typeof` in JavaScript, `null`s are not
+* considered to be objects. Note that JavaScript arrays are objects.
+*
+* @param {*} value Reference to check.
+* @returns {boolean} True if `value` is an `Object` but not `null`.
+*/
+function isObject(value){return value != null && typeof value === 'object';}
+/**
+* @ngdoc function
+* @name angular.isString
+* @module ng
+* @function
+*
+* @description
+* Determines if a reference is a `String`.
+*
+* @param {*} value Reference to check.
+* @returns {boolean} True if `value` is a `String`.
+*/
+function isString(value){return typeof value === 'string';}
+/**
+* @ngdoc function
+* @name angular.isNumber
+* @module ng
+* @function
+*
+* @description
+* Determines if a reference is a `Number`.
+*
+* @param {*} value Reference to check.
+* @returns {boolean} True if `value` is a `Number`.
+*/
+function isNumber(value){return typeof value === 'number';}
+/**
+* @ngdoc function
+* @name angular.isDate
+* @module ng
+* @function
+*
+* @description
+* Determines if a value is a date.
+*
+* @param {*} value Reference to check.
+* @returns {boolean} True if `value` is a `Date`.
+*/
+function isDate(value){
+return toString.call(value) === '[object Date]';
+}
+/**
+* @ngdoc function
+* @name angular.isArray
+* @module ng
+* @function
+*
+* @description
+* Determines if a reference is an `Array`.
+*
+* @param {*} value Reference to check.
+* @returns {boolean} True if `value` is an `Array`.
+*/
+function isArray(value) {
+return toString.call(value) === '[object Array]';
+}
+/**
+* @ngdoc function
+* @name angular.isFunction
+* @module ng
+* @function
+*
+* @description
+* Determines if a reference is a `Function`.
+*
+* @param {*} value Reference to check.
+* @returns {boolean} True if `value` is a `Function`.
+*/
+function isFunction(value){return typeof value === 'function';}
+/**
+* Determines if a value is a regular expression object.
+*
+* @private
+* @param {*} value Reference to check.
+* @returns {boolean} True if `value` is a `RegExp`.
+*/
+function isRegExp(value) {
+return toString.call(value) === '[object RegExp]';
+}
+/**
+* Checks if `obj` is a window object.
+*
+* @private
+* @param {*} obj Object to check
+* @returns {boolean} True if `obj` is a window obj.
+*/
+function isWindow(obj) {
+return obj && obj.document && obj.location && obj.alert && obj.setInterval;
+}
+function isScope(obj) {
+return obj && obj.$evalAsync && obj.$watch;
+}
+function isFile(obj) {
+return toString.call(obj) === '[object File]';
+}
+function isBlob(obj) {
+return toString.call(obj) === '[object Blob]';
+}
+function isBoolean(value) {
+return typeof value === 'boolean';
+}
+var trim = (function() {
+// native trim is way faster: http://jsperf.com/angular-trim-test
+// but IE doesn't have it... :-(
+// TODO: we should move this into IE/ES5 polyfill
+if (!String.prototype.trim) {
+return function(value) {
+return isString(value) ? value.replace(/^\s\s*/, '').replace(/\s\s*$/, '') : value;
+};
+}
+return function(value) {
+return isString(value) ? value.trim() : value;
+};
+})();
+/**
+* @ngdoc function
+* @name angular.isElement
+* @module ng
+* @function
+*
+* @description
+* Determines if a reference is a DOM element (or wrapped jQuery element).
+*
+* @param {*} value Reference to check.
+* @returns {boolean} True if `value` is a DOM element (or wrapped jQuery element).
+*/
+function isElement(node) {
+return !!(node &&
+(node.nodeName  // we are a direct element
+|| (node.prop && node.attr && node.find)));  // we have an on and find method part of jQuery API
+}
+/**
+* @param str 'key1,key2,...'
+* @returns {object} in the form of {key1:true, key2:true, ...}
+*/
+function makeMap(str){
+var obj = {}, items = str.split(","), i;
+for ( i = 0; i < items.length; i++ )
+obj[ items[i] ] = true;
+return obj;
+}
+if (msie < 9) {
+nodeName_ = function(element) {
+element = element.nodeName ? element : element[0];
+return (element.scopeName && element.scopeName != 'HTML')
+? uppercase(element.scopeName + ':' + element.nodeName) : element.nodeName;
+};
+} else {
+nodeName_ = function(element) {
+return element.nodeName ? element.nodeName : element[0].nodeName;
+};
+}
+function map(obj, iterator, context) {
+var results = [];
+forEach(obj, function(value, index, list) {
+results.push(iterator.call(context, value, index, list));
+});
+return results;
+}
+/**
+* @description
+* Determines the number of elements in an array, the number of properties an object has, or
+* the length of a string.
+*
+* Note: This function is used to augment the Object type in Angular expressions. See
+* {@link angular.Object} for more information about Angular arrays.
+*
+* @param {Object|Array|string} obj Object, array, or string to inspect.
+* @param {boolean} [ownPropsOnly=false] Count only "own" properties in an object
+* @returns {number} The size of `obj` or `0` if `obj` is neither an object nor an array.
+*/
+function size(obj, ownPropsOnly) {
+var count = 0, key;
+if (isArray(obj) || isString(obj)) {
+return obj.length;
+} else if (isObject(obj)){
+for (key in obj)
+if (!ownPropsOnly || obj.hasOwnProperty(key))
+count++;
+}
+return count;
+}
+function includes(array, obj) {
+return indexOf(array, obj) != -1;
+}
+function indexOf(array, obj) {
+if (array.indexOf) return array.indexOf(obj);
+for (var i = 0; i < array.length; i++) {
+if (obj === array[i]) return i;
+}
+return -1;
+}
+function arrayRemove(array, value) {
+var index = indexOf(array, value);
+if (index >=0)
+array.splice(index, 1);
+return value;
+}
+function isLeafNode (node) {
+if (node) {
+switch (node.nodeName) {
+case "OPTION":
+case "PRE":
+case "TITLE":
+return true;
+}
+}
+return false;
+}
+/**
+* @ngdoc function
+* @name angular.copy
+* @module ng
+* @function
+*
+* @description
+* Creates a deep copy of `source`, which should be an object or an array.
+*
+* * If no destination is supplied, a copy of the object or array is created.
+* * If a destination is provided, all of its elements (for array) or properties (for objects)
+*   are deleted and then all elements/properties from the source are copied to it.
+* * If `source` is not an object or array (inc. `null` and `undefined`), `source` is returned.
+* * If `source` is identical to 'destination' an exception will be thrown.
+*
+* @param {*} source The source that will be used to make a copy.
+*                   Can be any type, including primitives, `null`, and `undefined`.
+* @param {(Object|Array)=} destination Destination into which the source is copied. If
+*     provided, must be of the same type as `source`.
+* @returns {*} The copy or updated `destination`, if `destination` was specified.
+*
+* @example
+<example>
+<file name="index.html">
+<div ng-controller="Controller">
+<form novalidate class="simple-form">
+Name: <input type="text" ng-model="user.name" /><br />
+E-mail: <input type="email" ng-model="user.email" /><br />
+Gender: <input type="radio" ng-model="user.gender" value="male" />male
+<input type="radio" ng-model="user.gender" value="female" />female<br />
+<button ng-click="reset()">RESET</button>
+<button ng-click="update(user)">SAVE</button>
+</form>
+<pre>form = {{user | json}}</pre>
+<pre>master = {{master | json}}</pre>
+</div>
+<script>
+function Controller($scope) {
+$scope.master= {};
+$scope.update = function(user) {
+// Example with 1 argument
+$scope.master= angular.copy(user);
+};
+$scope.reset = function() {
+// Example with 2 arguments
+angular.copy($scope.master, $scope.user);
+};
+$scope.reset();
+}
+</script>
+</file>
+</example>
+*/
+function copy(source, destination){
+if (isWindow(source) || isScope(source)) {
+throw ngMinErr('cpws',
+"Can't copy! Making copies of Window or Scope instances is not supported.");
+}
+if (!destination) {
+destination = source;
+if (source) {
+if (isArray(source)) {
+destination = copy(source, []);
+} else if (isDate(source)) {
+destination = new Date(source.getTime());
+} else if (isRegExp(source)) {
+destination = new RegExp(source.source);
+} else if (isObject(source)) {
+destination = copy(source, {});
+}
+}
+} else {
+if (source === destination) throw ngMinErr('cpi',
+"Can't copy! Source and destination are identical.");
+if (isArray(source)) {
+destination.length = 0;
+for ( var i = 0; i < source.length; i++) {
+destination.push(copy(source[i]));
+}
+} else {
+var h = destination.$$hashKey;
+forEach(destination, function(value, key){
+delete destination[key];
+});
+for ( var key in source) {
+destination[key] = copy(source[key]);
+}
+setHashKey(destination,h);
+}
+}
+return destination;
+}
+/**
+* Create a shallow copy of an object
+*/
+function shallowCopy(src, dst) {
+dst = dst || {};
+for(var key in src) {
+// shallowCopy is only ever called by $compile nodeLinkFn, which has control over src
+// so we don't need to worry about using our custom hasOwnProperty here
+if (src.hasOwnProperty(key) && !(key.charAt(0) === '$' && key.charAt(1) === '$')) {
+dst[key] = src[key];
+}
+}
+return dst;
+}
+/**
+* @ngdoc function
+* @name angular.equals
+* @module ng
+* @function
+*
+* @description
+* Determines if two objects or two values are equivalent. Supports value types, regular
+* expressions, arrays and objects.
+*
+* Two objects or values are considered equivalent if at least one of the following is true:
+*
+* * Both objects or values pass `===` comparison.
+* * Both objects or values are of the same type and all of their properties are equal by
+*   comparing them with `angular.equals`.
+* * Both values are NaN. (In JavaScript, NaN == NaN => false. But we consider two NaN as equal)
+* * Both values represent the same regular expression (In JavasScript,
+*   /abc/ == /abc/ => false. But we consider two regular expressions as equal when their textual
+*   representation matches).
+*
+* During a property comparison, properties of `function` type and properties with names
+* that begin with `$` are ignored.
+*
+* Scope and DOMWindow objects are being compared only by identify (`===`).
+*
+* @param {*} o1 Object or value to compare.
+* @param {*} o2 Object or value to compare.
+* @returns {boolean} True if arguments are equal.
+*/
+function equals(o1, o2) {
+if (o1 === o2) return true;
+if (o1 === null || o2 === null) return false;
+if (o1 !== o1 && o2 !== o2) return true; // NaN === NaN
+var t1 = typeof o1, t2 = typeof o2, length, key, keySet;
+if (t1 == t2) {
+if (t1 == 'object') {
+if (isArray(o1)) {
+if (!isArray(o2)) return false;
+if ((length = o1.length) == o2.length) {
+for(key=0; key<length; key++) {
+if (!equals(o1[key], o2[key])) return false;
+}
+return true;
+}
+} else if (isDate(o1)) {
+return isDate(o2) && o1.getTime() == o2.getTime();
+} else if (isRegExp(o1) && isRegExp(o2)) {
+return o1.toString() == o2.toString();
+} else {
+if (isScope(o1) || isScope(o2) || isWindow(o1) || isWindow(o2) || isArray(o2)) return false;
+keySet = {};
+for(key in o1) {
+if (key.charAt(0) === '$' || isFunction(o1[key])) continue;
+if (!equals(o1[key], o2[key])) return false;
+keySet[key] = true;
+}
+for(key in o2) {
+if (!keySet.hasOwnProperty(key) &&
+key.charAt(0) !== '$' &&
+o2[key] !== undefined &&
+!isFunction(o2[key])) return false;
+}
+return true;
+}
+}
+}
+return false;
+}
+function csp() {
+return (document.securityPolicy && document.securityPolicy.isActive) ||
+(document.querySelector &&
+!!(document.querySelector('[ng-csp]') || document.querySelector('[data-ng-csp]')));
+}
+function concat(array1, array2, index) {
+return array1.concat(slice.call(array2, index));
+}
+function sliceArgs(args, startIndex) {
+return slice.call(args, startIndex || 0);
+}
+/* jshint -W101 */
+/**
+* @ngdoc function
+* @name angular.bind
+* @module ng
+* @function
+*
+* @description
+* Returns a function which calls function `fn` bound to `self` (`self` becomes the `this` for
+* `fn`). You can supply optional `args` that are prebound to the function. This feature is also
+* known as [partial application](http://en.wikipedia.org/wiki/Partial_application), as
+* distinguished from [function currying](http://en.wikipedia.org/wiki/Currying#Contrast_with_partial_function_application).
+*
+* @param {Object} self Context which `fn` should be evaluated in.
+* @param {function()} fn Function to be bound.
+* @param {...*} args Optional arguments to be prebound to the `fn` function call.
+* @returns {function()} Function that wraps the `fn` with all the specified bindings.
+*/
+/* jshint +W101 */
+function bind(self, fn) {
+var curryArgs = arguments.length > 2 ? sliceArgs(arguments, 2) : [];
+if (isFunction(fn) && !(fn instanceof RegExp)) {
+return curryArgs.length
+? function() {
+return arguments.length
+? fn.apply(self, curryArgs.concat(slice.call(arguments, 0)))
+: fn.apply(self, curryArgs);
+}
+: function() {
+return arguments.length
+? fn.apply(self, arguments)
+: fn.call(self);
+};
+} else {
+// in IE, native methods are not functions so they cannot be bound (note: they don't need to be)
+return fn;
+}
+}
+function toJsonReplacer(key, value) {
+var val = value;
+if (typeof key === 'string' && key.charAt(0) === '$') {
+val = undefined;
+} else if (isWindow(value)) {
+val = '$WINDOW';
+} else if (value &&  document === value) {
+val = '$DOCUMENT';
+} else if (isScope(value)) {
+val = '$SCOPE';
+}
+return val;
+}
+/**
+* @ngdoc function
+* @name angular.toJson
+* @module ng
+* @function
+*
+* @description
+* Serializes input into a JSON-formatted string. Properties with leading $ characters will be
+* stripped since angular uses this notation internally.
+*
+* @param {Object|Array|Date|string|number} obj Input to be serialized into JSON.
+* @param {boolean=} pretty If set to true, the JSON output will contain newlines and whitespace.
+* @returns {string|undefined} JSON-ified string representing `obj`.
+*/
+function toJson(obj, pretty) {
+if (typeof obj === 'undefined') return undefined;
+return JSON.stringify(obj, toJsonReplacer, pretty ? '  ' : null);
+}
+/**
+* @ngdoc function
+* @name angular.fromJson
+* @module ng
+* @function
+*
+* @description
+* Deserializes a JSON string.
+*
+* @param {string} json JSON string to deserialize.
+* @returns {Object|Array|string|number} Deserialized thingy.
+*/
+function fromJson(json) {
+return isString(json)
+? JSON.parse(json)
+: json;
+}
+function toBoolean(value) {
+if (typeof value === 'function') {
+value = true;
+} else if (value && value.length !== 0) {
+var v = lowercase("" + value);
+value = !(v == 'f' || v == '0' || v == 'false' || v == 'no' || v == 'n' || v == '[]');
+} else {
+value = false;
+}
+return value;
+}
+/**
+* @returns {string} Returns the string representation of the element.
+*/
+function startingTag(element) {
+element = jqLite(element).clone();
+try {
+// turns out IE does not let you set .html() on elements which
+// are not allowed to have children. So we just ignore it.
+element.empty();
+} catch(e) {}
+// As Per DOM Standards
+var TEXT_NODE = 3;
+var elemHtml = jqLite('<div>').append(element).html();
+try {
+return element[0].nodeType === TEXT_NODE ? lowercase(elemHtml) :
+elemHtml.
+match(/^(<[^>]+>)/)[1].
+replace(/^<([\w\-]+)/, function(match, nodeName) { return '<' + lowercase(nodeName); });
+} catch(e) {
+return lowercase(elemHtml);
+}
+}
+/////////////////////////////////////////////////
+/**
+* Tries to decode the URI component without throwing an exception.
+*
+* @private
+* @param str value potential URI component to check.
+* @returns {boolean} True if `value` can be decoded
+* with the decodeURIComponent function.
+*/
+function tryDecodeURIComponent(value) {
+try {
+return decodeURIComponent(value);
+} catch(e) {
+// Ignore any invalid uri component
+}
+}
+/**
+* Parses an escaped url query string into key-value pairs.
+* @returns {Object.<string,boolean|Array>}
+*/
+function parseKeyValue(/**string*/keyValue) {
+var obj = {}, key_value, key;
+forEach((keyValue || "").split('&'), function(keyValue){
+if ( keyValue ) {
+key_value = keyValue.split('=');
+key = tryDecodeURIComponent(key_value[0]);
+if ( isDefined(key) ) {
+var val = isDefined(key_value[1]) ? tryDecodeURIComponent(key_value[1]) : true;
+if (!obj[key]) {
+obj[key] = val;
+} else if(isArray(obj[key])) {
+obj[key].push(val);
+} else {
+obj[key] = [obj[key],val];
+}
+}
+}
+});
+return obj;
+}
+function toKeyValue(obj) {
+var parts = [];
+forEach(obj, function(value, key) {
+if (isArray(value)) {
+forEach(value, function(arrayValue) {
+parts.push(encodeUriQuery(key, true) +
+(arrayValue === true ? '' : '=' + encodeUriQuery(arrayValue, true)));
+});
+} else {
+parts.push(encodeUriQuery(key, true) +
+(value === true ? '' : '=' + encodeUriQuery(value, true)));
+}
+});
+return parts.length ? parts.join('&') : '';
+}
+/**
+* We need our custom method because encodeURIComponent is too aggressive and doesn't follow
+* http://www.ietf.org/rfc/rfc3986.txt with regards to the character set (pchar) allowed in path
+* segments:
+*    segment       = *pchar
+*    pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"
+*    pct-encoded   = "%" HEXDIG HEXDIG
+*    unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
+*    sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
+*                     / "*" / "+" / "," / ";" / "="
+*/
+function encodeUriSegment(val) {
+return encodeUriQuery(val, true).
+replace(/%26/gi, '&').
+replace(/%3D/gi, '=').
+replace(/%2B/gi, '+');
+}
+/**
+* This method is intended for encoding *key* or *value* parts of query component. We need a custom
+* method because encodeURIComponent is too aggressive and encodes stuff that doesn't have to be
+* encoded per http://tools.ietf.org/html/rfc3986:
+*    query       = *( pchar / "/" / "?" )
+*    pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"
+*    unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
+*    pct-encoded   = "%" HEXDIG HEXDIG
+*    sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
+*                     / "*" / "+" / "," / ";" / "="
+*/
+function encodeUriQuery(val, pctEncodeSpaces) {
+return encodeURIComponent(val).
+replace(/%40/gi, '@').
+replace(/%3A/gi, ':').
+replace(/%24/g, '$').
+replace(/%2C/gi, ',').
+replace(/%20/g, (pctEncodeSpaces ? '%20' : '+'));
+}
+/**
+* @ngdoc directive
+* @name ngApp
+* @module ng
+*
+* @element ANY
+* @param {angular.Module} ngApp an optional application
+*   {@link angular.module module} name to load.
+*
+* @description
+*
+* Use this directive to **auto-bootstrap** an AngularJS application. The `ngApp` directive
+* designates the **root element** of the application and is typically placed near the root element
+* of the page - e.g. on the `<body>` or `<html>` tags.
+*
+* Only one AngularJS application can be auto-bootstrapped per HTML document. The first `ngApp`
+* found in the document will be used to define the root element to auto-bootstrap as an
+* application. To run multiple applications in an HTML document you must manually bootstrap them using
+* {@link angular.bootstrap} instead. AngularJS applications cannot be nested within each other.
+*
+* You can specify an **AngularJS module** to be used as the root module for the application.  This
+* module will be loaded into the {@link auto.$injector} when the application is bootstrapped and
+* should contain the application code needed or have dependencies on other modules that will
+* contain the code. See {@link angular.module} for more information.
+*
+* In the example below if the `ngApp` directive were not placed on the `html` element then the
+* document would not be compiled, the `AppController` would not be instantiated and the `{{ a+b }}`
+* would not be resolved to `3`.
+*
+* `ngApp` is the easiest, and most common, way to bootstrap an application.
+*
+<example module="ngAppDemo">
+<file name="index.html">
+<div ng-controller="ngAppDemoController">
+I can add: {{a}} + {{b}} =  {{ a+b }}
+</div>
+</file>
+<file name="script.js">
+angular.module('ngAppDemo', []).controller('ngAppDemoController', function($scope) {
+$scope.a = 1;
+$scope.b = 2;
+});
+</file>
+</example>
+*
+*/
+function angularInit(element, bootstrap) {
+var elements = [element],
+appElement,
+module,
+names = ['ng:app', 'ng-app', 'x-ng-app', 'data-ng-app'],
+NG_APP_CLASS_REGEXP = /\sng[:\-]app(:\s*([\w\d_]+);?)?\s/;
+function append(element) {
+element && elements.push(element);
+}
+forEach(names, function(name) {
+names[name] = true;
+append(document.getElementById(name));
+name = name.replace(':', '\\:');
+if (element.querySelectorAll) {
+forEach(element.querySelectorAll('.' + name), append);
+forEach(element.querySelectorAll('.' + name + '\\:'), append);
+forEach(element.querySelectorAll('[' + name + ']'), append);
+}
+});
+forEach(elements, function(element) {
+if (!appElement) {
+var className = ' ' + element.className + ' ';
+var match = NG_APP_CLASS_REGEXP.exec(className);
+if (match) {
+appElement = element;
+module = (match[2] || '').replace(/\s+/g, ',');
+} else {
+forEach(element.attributes, function(attr) {
+if (!appElement && names[attr.name]) {
+appElement = element;
+module = attr.value;
+}
+});
+}
+}
+});
+if (appElement) {
+bootstrap(appElement, module ? [module] : []);
+}
+}
+/**
+* @ngdoc function
+* @name angular.bootstrap
+* @module ng
+* @description
+* Use this function to manually start up angular application.
+*
+* See: {@link guide/bootstrap Bootstrap}
+*
+* Note that ngScenario-based end-to-end tests cannot use this function to bootstrap manually.
+* They must use {@link ng.directive:ngApp ngApp}.
+*
+* Angular will detect if it has been loaded into the browser more than once and only allow the
+* first loaded script to be bootstrapped and will report a warning to the browser console for
+* each of the subsequent scripts.   This prevents strange results in applications, where otherwise
+* multiple instances of Angular try to work on the DOM.
+*
+* <example name="multi-bootstrap" module="multi-bootstrap">
+* <file name="index.html">
+* <script src="../../../angular.js"></script>
+* <div ng-controller="BrokenTable">
+*   <table>
+*   <tr>
+*     <th ng-repeat="heading in headings">{{heading}}</th>
+*   </tr>
+*   <tr ng-repeat="filling in fillings">
+*     <td ng-repeat="fill in filling">{{fill}}</td>
+*   </tr>
+* </table>
+* </div>
+* </file>
+* <file name="controller.js">
+* var app = angular.module('multi-bootstrap', [])
+*
+* .controller('BrokenTable', function($scope) {
+*     $scope.headings = ['One', 'Two', 'Three'];
+*     $scope.fillings = [[1, 2, 3], ['A', 'B', 'C'], [7, 8, 9]];
+* });
+* </file>
+* <file name="protractor.js" type="protractor">
+* it('should only insert one table cell for each item in $scope.fillings', function() {
+*  expect(element.all(by.css('td')).count())
+*      .toBe(9);
+* });
+* </file>
+* </example>
+*
+* @param {Element} element DOM element which is the root of angular application.
+* @param {Array<String|Function|Array>=} modules an array of modules to load into the application.
+*     Each item in the array should be the name of a predefined module or a (DI annotated)
+*     function that will be invoked by the injector as a run block.
+*     See: {@link angular.module modules}
+* @returns {auto.$injector} Returns the newly created injector for this app.
+*/
+function bootstrap(element, modules) {
+var doBootstrap = function() {
+element = jqLite(element);
+if (element.injector()) {
+var tag = (element[0] === document) ? 'document' : startingTag(element);
+throw ngMinErr('btstrpd', "App Already Bootstrapped with this Element '{0}'", tag);
+}
+modules = modules || [];
+modules.unshift(['$provide', function($provide) {
+$provide.value('$rootElement', element);
+}]);
+modules.unshift('ng');
+var injector = createInjector(modules);
+injector.invoke(['$rootScope', '$rootElement', '$compile', '$injector', '$animate',
+function(scope, element, compile, injector, animate) {
+scope.$apply(function() {
+element.data('$injector', injector);
+compile(element)(scope);
+});
+}]
+);
+return injector;
+};
+var NG_DEFER_BOOTSTRAP = /^NG_DEFER_BOOTSTRAP!/;
+if (window && !NG_DEFER_BOOTSTRAP.test(window.name)) {
+return doBootstrap();
+}
+window.name = window.name.replace(NG_DEFER_BOOTSTRAP, '');
+angular.resumeBootstrap = function(extraModules) {
+forEach(extraModules, function(module) {
+modules.push(module);
+});
+doBootstrap();
+};
+}
+var SNAKE_CASE_REGEXP = /[A-Z]/g;
+function snake_case(name, separator){
+separator = separator || '_';
+return name.replace(SNAKE_CASE_REGEXP, function(letter, pos) {
+return (pos ? separator : '') + letter.toLowerCase();
+});
+}
+function bindJQuery() {
+// bind to jQuery if present;
+jQuery = window.jQuery;
+// reset to jQuery or default to us.
+if (jQuery) {
+jqLite = jQuery;
+extend(jQuery.fn, {
+scope: JQLitePrototype.scope,
+isolateScope: JQLitePrototype.isolateScope,
+controller: JQLitePrototype.controller,
+injector: JQLitePrototype.injector,
+inheritedData: JQLitePrototype.inheritedData
+});
+// Method signature:
+//     jqLitePatchJQueryRemove(name, dispatchThis, filterElems, getterIfNoArguments)
+jqLitePatchJQueryRemove('remove', true, true, false);
+jqLitePatchJQueryRemove('empty', false, false, false);
+jqLitePatchJQueryRemove('html', false, false, true);
+} else {
+jqLite = JQLite;
+}
+angular.element = jqLite;
+}
+/**
+* throw error if the argument is falsy.
+*/
+function assertArg(arg, name, reason) {
+if (!arg) {
+throw ngMinErr('areq', "Argument '{0}' is {1}", (name || '?'), (reason || "required"));
+}
+return arg;
+}
+function assertArgFn(arg, name, acceptArrayAnnotation) {
+if (acceptArrayAnnotation && isArray(arg)) {
+arg = arg[arg.length - 1];
+}
+assertArg(isFunction(arg), name, 'not a function, got ' +
+(arg && typeof arg == 'object' ? arg.constructor.name || 'Object' : typeof arg));
+return arg;
+}
+/**
+* throw error if the name given is hasOwnProperty
+* @param  {String} name    the name to test
+* @param  {String} context the context in which the name is used, such as module or directive
+*/
+function assertNotHasOwnProperty(name, context) {
+if (name === 'hasOwnProperty') {
+throw ngMinErr('badname', "hasOwnProperty is not a valid {0} name", context);
+}
+}
+/**
+* Return the value accessible from the object by path. Any undefined traversals are ignored
+* @param {Object} obj starting object
+* @param {String} path path to traverse
+* @param {boolean} [bindFnToScope=true]
+* @returns {Object} value as accessible by path
+*/
+//TODO(misko): this function needs to be removed
+function getter(obj, path, bindFnToScope) {
+if (!path) return obj;
+var keys = path.split('.');
+var key;
+var lastInstance = obj;
+var len = keys.length;
+for (var i = 0; i < len; i++) {
+key = keys[i];
+if (obj) {
+obj = (lastInstance = obj)[key];
+}
+}
+if (!bindFnToScope && isFunction(obj)) {
+return bind(lastInstance, obj);
+}
+return obj;
+}
+/**
+* Return the DOM siblings between the first and last node in the given array.
+* @param {Array} array like object
+* @returns {DOMElement} object containing the elements
+*/
+function getBlockElements(nodes) {
+var startNode = nodes[0],
+endNode = nodes[nodes.length - 1];
+if (startNode === endNode) {
+return jqLite(startNode);
+}
+var element = startNode;
+var elements = [element];
+do {
+element = element.nextSibling;
+if (!element) break;
+elements.push(element);
+} while (element !== endNode);
+return jqLite(elements);
+}
+/**
+* @ngdoc type
+* @name angular.Module
+* @module ng
+* @description
+*
+* Interface for configuring angular {@link angular.module modules}.
+*/
+function setupModuleLoader(window) {
+var $injectorMinErr = minErr('$injector');
+var ngMinErr = minErr('ng');
+function ensure(obj, name, factory) {
+return obj[name] || (obj[name] = factory());
+}
+var angular = ensure(window, 'angular', Object);
+// We need to expose `angular.$$minErr` to modules such as `ngResource` that reference it during bootstrap
+angular.$$minErr = angular.$$minErr || minErr;
+return ensure(angular, 'module', function() {
+/** @type {Object.<string, angular.Module>} */
+var modules = {};
+/**
+* @ngdoc function
+* @name angular.module
+* @module ng
+* @description
+*
+* The `angular.module` is a global place for creating, registering and retrieving Angular
+* modules.
+* All modules (angular core or 3rd party) that should be available to an application must be
+* registered using this mechanism.
+*
+* When passed two or more arguments, a new module is created.  If passed only one argument, an
+* existing module (the name passed as the first argument to `module`) is retrieved.
+*
+*
+* # Module
+*
+* A module is a collection of services, directives, filters, and configuration information.
+* `angular.module` is used to configure the {@link auto.$injector $injector}.
+*
+* ```js
+* // Create a new module
+* var myModule = angular.module('myModule', []);
+*
+* // register a new service
+* myModule.value('appName', 'MyCoolApp');
+*
+* // configure existing services inside initialization blocks.
+* myModule.config(['$locationProvider', function($locationProvider) {
+*   // Configure existing providers
+*   $locationProvider.hashPrefix('!');
+* }]);
+* ```
+*
+* Then you can create an injector and load your modules like this:
+*
+* ```js
+* var injector = angular.injector(['ng', 'myModule'])
+* ```
+*
+* However it's more likely that you'll just use
+* {@link ng.directive:ngApp ngApp} or
+* {@link angular.bootstrap} to simplify this process for you.
+*
+* @param {!string} name The name of the module to create or retrieve.
+* @param {Array.<string>=} requires If specified then new module is being created. If
+*        unspecified then the module is being retrieved for further configuration.
+* @param {Function} configFn Optional configuration function for the module. Same as
+*        {@link angular.Module#config Module#config()}.
+* @returns {module} new module with the {@link angular.Module} api.
+*/
+return function module(name, requires, configFn) {
+var assertNotHasOwnProperty = function(name, context) {
+if (name === 'hasOwnProperty') {
+throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);
+}
+};
+assertNotHasOwnProperty(name, 'module');
+if (requires && modules.hasOwnProperty(name)) {
+modules[name] = null;
+}
+return ensure(modules, name, function() {
+if (!requires) {
+throw $injectorMinErr('nomod', "Module '{0}' is not available! You either misspelled " +
+"the module name or forgot to load it. If registering a module ensure that you " +
+"specify the dependencies as the second argument.", name);
+}
+/** @type {!Array.<Array.<*>>} */
+var invokeQueue = [];
+/** @type {!Array.<Function>} */
+var runBlocks = [];
+var config = invokeLater('$injector', 'invoke');
+/** @type {angular.Module} */
+var moduleInstance = {
+// Private state
+_invokeQueue: invokeQueue,
+_runBlocks: runBlocks,
+/**
+* @ngdoc property
+* @name angular.Module#requires
+* @module ng
+* @returns {Array.<string>} List of module names which must be loaded before this module.
+* @description
+* Holds the list of modules which the injector will load before the current module is
+* loaded.
+*/
+requires: requires,
+/**
+* @ngdoc property
+* @name angular.Module#name
+* @module ng
+* @returns {string} Name of the module.
+* @description
+*/
+name: name,
+/**
+* @ngdoc method
+* @name angular.Module#provider
+* @module ng
+* @param {string} name service name
+* @param {Function} providerType Construction function for creating new instance of the
+*                                service.
+* @description
+* See {@link auto.$provide#provider $provide.provider()}.
+*/
+provider: invokeLater('$provide', 'provider'),
+/**
+* @ngdoc method
+* @name angular.Module#factory
+* @module ng
+* @param {string} name service name
+* @param {Function} providerFunction Function for creating new instance of the service.
+* @description
+* See {@link auto.$provide#factory $provide.factory()}.
+*/
+factory: invokeLater('$provide', 'factory'),
+/**
+* @ngdoc method
+* @name angular.Module#service
+* @module ng
+* @param {string} name service name
+* @param {Function} constructor A constructor function that will be instantiated.
+* @description
+* See {@link auto.$provide#service $provide.service()}.
+*/
+service: invokeLater('$provide', 'service'),
+/**
+* @ngdoc method
+* @name angular.Module#value
+* @module ng
+* @param {string} name service name
+* @param {*} object Service instance object.
+* @description
+* See {@link auto.$provide#value $provide.value()}.
+*/
+value: invokeLater('$provide', 'value'),
+/**
+* @ngdoc method
+* @name angular.Module#constant
+* @module ng
+* @param {string} name constant name
+* @param {*} object Constant value.
+* @description
+* Because the constant are fixed, they get applied before other provide methods.
+* See {@link auto.$provide#constant $provide.constant()}.
+*/
+constant: invokeLater('$provide', 'constant', 'unshift'),
+/**
+* @ngdoc method
+* @name angular.Module#animation
+* @module ng
+* @param {string} name animation name
+* @param {Function} animationFactory Factory function for creating new instance of an
+*                                    animation.
+* @description
+*
+* **NOTE**: animations take effect only if the **ngAnimate** module is loaded.
+*
+*
+* Defines an animation hook that can be later used with
+* {@link ngAnimate.$animate $animate} service and directives that use this service.
+*
+* ```js
+* module.animation('.animation-name', function($inject1, $inject2) {
+*   return {
+*     eventName : function(element, done) {
+*       //code to run the animation
+*       //once complete, then run done()
+*       return function cancellationFunction(element) {
+*         //code to cancel the animation
+*       }
+*     }
+*   }
+* })
+* ```
+*
+* See {@link ngAnimate.$animateProvider#register $animateProvider.register()} and
+* {@link ngAnimate ngAnimate module} for more information.
+*/
+animation: invokeLater('$animateProvider', 'register'),
+/**
+* @ngdoc method
+* @name angular.Module#filter
+* @module ng
+* @param {string} name Filter name.
+* @param {Function} filterFactory Factory function for creating new instance of filter.
+* @description
+* See {@link ng.$filterProvider#register $filterProvider.register()}.
+*/
+filter: invokeLater('$filterProvider', 'register'),
+/**
+* @ngdoc method
+* @name angular.Module#controller
+* @module ng
+* @param {string|Object} name Controller name, or an object map of controllers where the
+*    keys are the names and the values are the constructors.
+* @param {Function} constructor Controller constructor function.
+* @description
+* See {@link ng.$controllerProvider#register $controllerProvider.register()}.
+*/
+controller: invokeLater('$controllerProvider', 'register'),
+/**
+* @ngdoc method
+* @name angular.Module#directive
+* @module ng
+* @param {string|Object} name Directive name, or an object map of directives where the
+*    keys are the names and the values are the factories.
+* @param {Function} directiveFactory Factory function for creating new instance of
+* directives.
+* @description
+* See {@link ng.$compileProvider#directive $compileProvider.directive()}.
+*/
+directive: invokeLater('$compileProvider', 'directive'),
+/**
+* @ngdoc method
+* @name angular.Module#config
+* @module ng
+* @param {Function} configFn Execute this function on module load. Useful for service
+*    configuration.
+* @description
+* Use this method to register work which needs to be performed on module loading.
+*/
+config: config,
+/**
+* @ngdoc method
+* @name angular.Module#run
+* @module ng
+* @param {Function} initializationFn Execute this function after injector creation.
+*    Useful for application initialization.
+* @description
+* Use this method to register work which should be performed when the injector is done
+* loading all modules.
+*/
+run: function(block) {
+runBlocks.push(block);
+return this;
+}
+};
+if (configFn) {
+config(configFn);
+}
+return  moduleInstance;
+/**
+* @param {string} provider
+* @param {string} method
+* @param {String=} insertMethod
+* @returns {angular.Module}
+*/
+function invokeLater(provider, method, insertMethod) {
+return function() {
+invokeQueue[insertMethod || 'push']([provider, method, arguments]);
+return moduleInstance;
+};
+}
+});
+};
+});
+}
+/* global
+angularModule: true,
+version: true,
+$LocaleProvider,
+$CompileProvider,
+htmlAnchorDirective,
+inputDirective,
+inputDirective,
+formDirective,
+scriptDirective,
+selectDirective,
+styleDirective,
+optionDirective,
+ngBindDirective,
+ngBindHtmlDirective,
+ngBindTemplateDirective,
+ngClassDirective,
+ngClassEvenDirective,
+ngClassOddDirective,
+ngCspDirective,
+ngCloakDirective,
+ngControllerDirective,
+ngFormDirective,
+ngHideDirective,
+ngIfDirective,
+ngIncludeDirective,
+ngIncludeFillContentDirective,
+ngInitDirective,
+ngNonBindableDirective,
+ngPluralizeDirective,
+ngRepeatDirective,
+ngShowDirective,
+ngStyleDirective,
+ngSwitchDirective,
+ngSwitchWhenDirective,
+ngSwitchDefaultDirective,
+ngOptionsDirective,
+ngTranscludeDirective,
+ngModelDirective,
+ngListDirective,
+ngChangeDirective,
+requiredDirective,
+requiredDirective,
+ngValueDirective,
+ngAttributeAliasDirectives,
+ngEventDirectives,
+$AnchorScrollProvider,
+$AnimateProvider,
+$BrowserProvider,
+$CacheFactoryProvider,
+$ControllerProvider,
+$DocumentProvider,
+$ExceptionHandlerProvider,
+$FilterProvider,
+$InterpolateProvider,
+$IntervalProvider,
+$HttpProvider,
+$HttpBackendProvider,
+$LocationProvider,
+$LogProvider,
+$ParseProvider,
+$RootScopeProvider,
+$QProvider,
+$$SanitizeUriProvider,
+$SceProvider,
+$SceDelegateProvider,
+$SnifferProvider,
+$TemplateCacheProvider,
+$TimeoutProvider,
+$$RAFProvider,
+$$AsyncCallbackProvider,
+$WindowProvider
+*/
+/**
+* @ngdoc object
+* @name angular.version
+* @module ng
+* @description
+* An object that contains information about the current AngularJS version. This object has the
+* following properties:
+*
+* - `full` – `{string}` – Full version string, such as "0.9.18".
+* - `major` – `{number}` – Major version number, such as "0".
+* - `minor` – `{number}` – Minor version number, such as "9".
+* - `dot` – `{number}` – Dot version number, such as "18".
+* - `codeName` – `{string}` – Code name of the release, such as "jiggling-armfat".
+*/
+var version = {
+full: '1.2.15',    // all of these placeholder strings will be replaced by grunt's
+major: 1,    // package task
+minor: 2,
+dot: 15,
+codeName: 'beer-underestimating'
+};
+function publishExternalAPI(angular){
+extend(angular, {
+'bootstrap': bootstrap,
+'copy': copy,
+'extend': extend,
+'equals': equals,
+'element': jqLite,
+'forEach': forEach,
+'injector': createInjector,
+'noop':noop,
+'bind':bind,
+'toJson': toJson,
+'fromJson': fromJson,
+'identity':identity,
+'isUndefined': isUndefined,
+'isDefined': isDefined,
+'isString': isString,
+'isFunction': isFunction,
+'isObject': isObject,
+'isNumber': isNumber,
+'isElement': isElement,
+'isArray': isArray,
+'version': version,
+'isDate': isDate,
+'lowercase': lowercase,
+'uppercase': uppercase,
+'callbacks': {counter: 0},
+'$$minErr': minErr,
+'$$csp': csp
+});
+angularModule = setupModuleLoader(window);
+try {
+angularModule('ngLocale');
+} catch (e) {
+angularModule('ngLocale', []).provider('$locale', $LocaleProvider);
+}
+angularModule('ng', ['ngLocale'], ['$provide',
+function ngModule($provide) {
+// $$sanitizeUriProvider needs to be before $compileProvider as it is used by it.
+$provide.provider({
+$$sanitizeUri: $$SanitizeUriProvider
+});
+$provide.provider('$compile', $CompileProvider).
+directive({
+a: htmlAnchorDirective,
+input: inputDirective,
+textarea: inputDirective,
+form: formDirective,
+script: scriptDirective,
+select: selectDirective,
+style: styleDirective,
+option: optionDirective,
+ngBind: ngBindDirective,
+ngBindHtml: ngBindHtmlDirective,
+ngBindTemplate: ngBindTemplateDirective,
+ngClass: ngClassDirective,
+ngClassEven: ngClassEvenDirective,
+ngClassOdd: ngClassOddDirective,
+ngCloak: ngCloakDirective,
+ngController: ngControllerDirective,
+ngForm: ngFormDirective,
+ngHide: ngHideDirective,
+ngIf: ngIfDirective,
+ngInclude: ngIncludeDirective,
+ngInit: ngInitDirective,
+ngNonBindable: ngNonBindableDirective,
+ngPluralize: ngPluralizeDirective,
+ngRepeat: ngRepeatDirective,
+ngShow: ngShowDirective,
+ngStyle: ngStyleDirective,
+ngSwitch: ngSwitchDirective,
+ngSwitchWhen: ngSwitchWhenDirective,
+ngSwitchDefault: ngSwitchDefaultDirective,
+ngOptions: ngOptionsDirective,
+ngTransclude: ngTranscludeDirective,
+ngModel: ngModelDirective,
+ngList: ngListDirective,
+ngChange: ngChangeDirective,
+required: requiredDirective,
+ngRequired: requiredDirective,
+ngValue: ngValueDirective
+}).
+directive({
+ngInclude: ngIncludeFillContentDirective
+}).
+directive(ngAttributeAliasDirectives).
+directive(ngEventDirectives);
+$provide.provider({
+$anchorScroll: $AnchorScrollProvider,
+$animate: $AnimateProvider,
+$browser: $BrowserProvider,
+$cacheFactory: $CacheFactoryProvider,
+$controller: $ControllerProvider,
+$document: $DocumentProvider,
+$exceptionHandler: $ExceptionHandlerProvider,
+$filter: $FilterProvider,
+$interpolate: $InterpolateProvider,
+$interval: $IntervalProvider,
+$http: $HttpProvider,
+$httpBackend: $HttpBackendProvider,
+$location: $LocationProvider,
+$log: $LogProvider,
+$parse: $ParseProvider,
+$rootScope: $RootScopeProvider,
+$q: $QProvider,
+$sce: $SceProvider,
+$sceDelegate: $SceDelegateProvider,
+$sniffer: $SnifferProvider,
+$templateCache: $TemplateCacheProvider,
+$timeout: $TimeoutProvider,
+$window: $WindowProvider,
+$$rAF: $$RAFProvider,
+$$asyncCallback : $$AsyncCallbackProvider
+});
+}
+]);
+}
+/* global
+-JQLitePrototype,
+-addEventListenerFn,
+-removeEventListenerFn,
+-BOOLEAN_ATTR
+*/
+//////////////////////////////////
+//JQLite
+//////////////////////////////////
+/**
+* @ngdoc function
+* @name angular.element
+* @module ng
+* @function
+*
+* @description
+* Wraps a raw DOM element or HTML string as a [jQuery](http://jquery.com) element.
+*
+* If jQuery is available, `angular.element` is an alias for the
+* [jQuery](http://api.jquery.com/jQuery/) function. If jQuery is not available, `angular.element`
+* delegates to Angular's built-in subset of jQuery, called "jQuery lite" or "jqLite."
+*
+* <div class="alert alert-success">jqLite is a tiny, API-compatible subset of jQuery that allows
+* Angular to manipulate the DOM in a cross-browser compatible way. **jqLite** implements only the most
+* commonly needed functionality with the goal of having a very small footprint.</div>
+*
+* To use jQuery, simply load it before `DOMContentLoaded` event fired.
+*
+* <div class="alert">**Note:** all element references in Angular are always wrapped with jQuery or
+* jqLite; they are never raw DOM references.</div>
+*
+* ## Angular's jqLite
+* jqLite provides only the following jQuery methods:
+*
+* - [`addClass()`](http://api.jquery.com/addClass/)
+* - [`after()`](http://api.jquery.com/after/)
+* - [`append()`](http://api.jquery.com/append/)
+* - [`attr()`](http://api.jquery.com/attr/)
+* - [`bind()`](http://api.jquery.com/bind/) - Does not support namespaces, selectors or eventData
+* - [`children()`](http://api.jquery.com/children/) - Does not support selectors
+* - [`clone()`](http://api.jquery.com/clone/)
+* - [`contents()`](http://api.jquery.com/contents/)
+* - [`css()`](http://api.jquery.com/css/)
+* - [`data()`](http://api.jquery.com/data/)
+* - [`empty()`](http://api.jquery.com/empty/)
+* - [`eq()`](http://api.jquery.com/eq/)
+* - [`find()`](http://api.jquery.com/find/) - Limited to lookups by tag name
+* - [`hasClass()`](http://api.jquery.com/hasClass/)
+* - [`html()`](http://api.jquery.com/html/)
+* - [`next()`](http://api.jquery.com/next/) - Does not support selectors
+* - [`on()`](http://api.jquery.com/on/) - Does not support namespaces, selectors or eventData
+* - [`off()`](http://api.jquery.com/off/) - Does not support namespaces or selectors
+* - [`one()`](http://api.jquery.com/one/) - Does not support namespaces or selectors
+* - [`parent()`](http://api.jquery.com/parent/) - Does not support selectors
+* - [`prepend()`](http://api.jquery.com/prepend/)
+* - [`prop()`](http://api.jquery.com/prop/)
+* - [`ready()`](http://api.jquery.com/ready/)
+* - [`remove()`](http://api.jquery.com/remove/)
+* - [`removeAttr()`](http://api.jquery.com/removeAttr/)
+* - [`removeClass()`](http://api.jquery.com/removeClass/)
+* - [`removeData()`](http://api.jquery.com/removeData/)
+* - [`replaceWith()`](http://api.jquery.com/replaceWith/)
+* - [`text()`](http://api.jquery.com/text/)
+* - [`toggleClass()`](http://api.jquery.com/toggleClass/)
+* - [`triggerHandler()`](http://api.jquery.com/triggerHandler/) - Passes a dummy event object to handlers.
+* - [`unbind()`](http://api.jquery.com/unbind/) - Does not support namespaces
+* - [`val()`](http://api.jquery.com/val/)
+* - [`wrap()`](http://api.jquery.com/wrap/)
+*
+* ## jQuery/jqLite Extras
+* Angular also provides the following additional methods and events to both jQuery and jqLite:
+*
+* ### Events
+* - `$destroy` - AngularJS intercepts all jqLite/jQuery's DOM destruction apis and fires this event
+*    on all DOM nodes being removed.  This can be used to clean up any 3rd party bindings to the DOM
+*    element before it is removed.
+*
+* ### Methods
+* - `controller(name)` - retrieves the controller of the current element or its parent. By default
+*   retrieves controller associated with the `ngController` directive. If `name` is provided as
+*   camelCase directive name, then the controller for this directive will be retrieved (e.g.
+*   `'ngModel'`).
+* - `injector()` - retrieves the injector of the current element or its parent.
+* - `scope()` - retrieves the {@link ng.$rootScope.Scope scope} of the current
+*   element or its parent.
+* - `isolateScope()` - retrieves an isolate {@link ng.$rootScope.Scope scope} if one is attached directly to the
+*   current element. This getter should be used only on elements that contain a directive which starts a new isolate
+*   scope. Calling `scope()` on this element always returns the original non-isolate scope.
+* - `inheritedData()` - same as `data()`, but walks up the DOM until a value is found or the top
+*   parent element is reached.
+*
+* @param {string|DOMElement} element HTML string or DOMElement to be wrapped into jQuery.
+* @returns {Object} jQuery object.
+*/
+var jqCache = JQLite.cache = {},
+jqName = JQLite.expando = 'ng-' + new Date().getTime(),
+jqId = 1,
+addEventListenerFn = (window.document.addEventListener
+? function(element, type, fn) {element.addEventListener(type, fn, false);}
+: function(element, type, fn) {element.attachEvent('on' + type, fn);}),
+removeEventListenerFn = (window.document.removeEventListener
+? function(element, type, fn) {element.removeEventListener(type, fn, false); }
+: function(element, type, fn) {element.detachEvent('on' + type, fn); });
+/*
+* !!! This is an undocumented "private" function !!!
+*/
+var jqData = JQLite._data = function(node) {
+//jQuery always returns an object on cache miss
+return this.cache[node[this.expando]] || {};
+};
+function jqNextId() { return ++jqId; }
+var SPECIAL_CHARS_REGEXP = /([\:\-\_]+(.))/g;
+var MOZ_HACK_REGEXP = /^moz([A-Z])/;
+var jqLiteMinErr = minErr('jqLite');
+/**
+* Converts snake_case to camelCase.
+* Also there is special case for Moz prefix starting with upper case letter.
+* @param name Name to normalize
+*/
+function camelCase(name) {
+return name.
+replace(SPECIAL_CHARS_REGEXP, function(_, separator, letter, offset) {
+return offset ? letter.toUpperCase() : letter;
+}).
+replace(MOZ_HACK_REGEXP, 'Moz$1');
+}
+/////////////////////////////////////////////
+// jQuery mutation patch
+//
+// In conjunction with bindJQuery intercepts all jQuery's DOM destruction apis and fires a
+// $destroy event on all DOM nodes being removed.
+//
+/////////////////////////////////////////////
+function jqLitePatchJQueryRemove(name, dispatchThis, filterElems, getterIfNoArguments) {
+var originalJqFn = jQuery.fn[name];
+originalJqFn = originalJqFn.$original || originalJqFn;
+removePatch.$original = originalJqFn;
+jQuery.fn[name] = removePatch;
+function removePatch(param) {
+// jshint -W040
+var list = filterElems && param ? [this.filter(param)] : [this],
+fireEvent = dispatchThis,
+set, setIndex, setLength,
+element, childIndex, childLength, children;
+if (!getterIfNoArguments || param != null) {
+while(list.length) {
+set = list.shift();
+for(setIndex = 0, setLength = set.length; setIndex < setLength; setIndex++) {
+element = jqLite(set[setIndex]);
+if (fireEvent) {
+element.triggerHandler('$destroy');
+} else {
+fireEvent = !fireEvent;
+}
+for(childIndex = 0, childLength = (children = element.children()).length;
+childIndex < childLength;
+childIndex++) {
+list.push(jQuery(children[childIndex]));
+}
+}
+}
+}
+return originalJqFn.apply(this, arguments);
+}
+}
+/////////////////////////////////////////////
+function JQLite(element) {
+if (element instanceof JQLite) {
+return element;
+}
+if (isString(element)) {
+element = trim(element);
+}
+if (!(this instanceof JQLite)) {
+if (isString(element) && element.charAt(0) != '<') {
+throw jqLiteMinErr('nosel', 'Looking up elements via selectors is not supported by jqLite! See: http://docs.angularjs.org/api/angular.element');
+}
+return new JQLite(element);
+}
+if (isString(element)) {
+var div = document.createElement('div');
+// Read about the NoScope elements here:
+// http://msdn.microsoft.com/en-us/library/ms533897(VS.85).aspx
+div.innerHTML = '<div>&#160;</div>' + element; // IE insanity to make NoScope elements work!
+div.removeChild(div.firstChild); // remove the superfluous div
+jqLiteAddNodes(this, div.childNodes);
+var fragment = jqLite(document.createDocumentFragment());
+fragment.append(this); // detach the elements from the temporary DOM div.
+} else {
+jqLiteAddNodes(this, element);
+}
+}
+function jqLiteClone(element) {
+return element.cloneNode(true);
+}
+function jqLiteDealoc(element){
+jqLiteRemoveData(element);
+for ( var i = 0, children = element.childNodes || []; i < children.length; i++) {
+jqLiteDealoc(children[i]);
+}
+}
+function jqLiteOff(element, type, fn, unsupported) {
+if (isDefined(unsupported)) throw jqLiteMinErr('offargs', 'jqLite#off() does not support the `selector` argument');
+var events = jqLiteExpandoStore(element, 'events'),
+handle = jqLiteExpandoStore(element, 'handle');
+if (!handle) return; //no listeners registered
+if (isUndefined(type)) {
+forEach(events, function(eventHandler, type) {
+removeEventListenerFn(element, type, eventHandler);
+delete events[type];
+});
+} else {
+forEach(type.split(' '), function(type) {
+if (isUndefined(fn)) {
+removeEventListenerFn(element, type, events[type]);
+delete events[type];
+} else {
+arrayRemove(events[type] || [], fn);
+}
+});
+}
+}
+function jqLiteRemoveData(element, name) {
+var expandoId = element[jqName],
+expandoStore = jqCache[expandoId];
+if (expandoStore) {
+if (name) {
+delete jqCache[expandoId].data[name];
+return;
+}
+if (expandoStore.handle) {
+expandoStore.events.$destroy && expandoStore.handle({}, '$destroy');
+jqLiteOff(element);
+}
+delete jqCache[expandoId];
+element[jqName] = undefined; // ie does not allow deletion of attributes on elements.
+}
+}
+function jqLiteExpandoStore(element, key, value) {
+var expandoId = element[jqName],
+expandoStore = jqCache[expandoId || -1];
+if (isDefined(value)) {
+if (!expandoStore) {
+element[jqName] = expandoId = jqNextId();
+expandoStore = jqCache[expandoId] = {};
+}
+expandoStore[key] = value;
+} else {
+return expandoStore && expandoStore[key];
+}
+}
+function jqLiteData(element, key, value) {
+var data = jqLiteExpandoStore(element, 'data'),
+isSetter = isDefined(value),
+keyDefined = !isSetter && isDefined(key),
+isSimpleGetter = keyDefined && !isObject(key);
+if (!data && !isSimpleGetter) {
+jqLiteExpandoStore(element, 'data', data = {});
+}
+if (isSetter) {
+data[key] = value;
+} else {
+if (keyDefined) {
+if (isSimpleGetter) {
+// don't create data in this case.
+return data && data[key];
+} else {
+extend(data, key);
+}
+} else {
+return data;
+}
+}
+}
+function jqLiteHasClass(element, selector) {
+if (!element.getAttribute) return false;
+return ((" " + (element.getAttribute('class') || '') + " ").replace(/[\n\t]/g, " ").
+indexOf( " " + selector + " " ) > -1);
+}
+function jqLiteRemoveClass(element, cssClasses) {
+if (cssClasses && element.setAttribute) {
+forEach(cssClasses.split(' '), function(cssClass) {
+element.setAttribute('class', trim(
+(" " + (element.getAttribute('class') || '') + " ")
+.replace(/[\n\t]/g, " ")
+.replace(" " + trim(cssClass) + " ", " "))
+);
+});
+}
+}
+function jqLiteAddClass(element, cssClasses) {
+if (cssClasses && element.setAttribute) {
+var existingClasses = (' ' + (element.getAttribute('class') || '') + ' ')
+.replace(/[\n\t]/g, " ");
+forEach(cssClasses.split(' '), function(cssClass) {
+cssClass = trim(cssClass);
+if (existingClasses.indexOf(' ' + cssClass + ' ') === -1) {
+existingClasses += cssClass + ' ';
+}
+});
+element.setAttribute('class', trim(existingClasses));
+}
+}
+function jqLiteAddNodes(root, elements) {
+if (elements) {
+elements = (!elements.nodeName && isDefined(elements.length) && !isWindow(elements))
+? elements
+: [ elements ];
+for(var i=0; i < elements.length; i++) {
+root.push(elements[i]);
+}
+}
+}
+function jqLiteController(element, name) {
+return jqLiteInheritedData(element, '$' + (name || 'ngController' ) + 'Controller');
+}
+function jqLiteInheritedData(element, name, value) {
+element = jqLite(element);
+// if element is the document object work with the html element instead
+// this makes $(document).scope() possible
+if(element[0].nodeType == 9) {
+element = element.find('html');
+}
+var names = isArray(name) ? name : [name];
+while (element.length) {
+var node = element[0];
+for (var i = 0, ii = names.length; i < ii; i++) {
+if ((value = element.data(names[i])) !== undefined) return value;
+}
+// If dealing with a document fragment node with a host element, and no parent, use the host
+// element as the parent. This enables directives within a Shadow DOM or polyfilled Shadow DOM
+// to lookup parent controllers.
+element = jqLite(node.parentNode || (node.nodeType === 11 && node.host));
+}
+}
+function jqLiteEmpty(element) {
+for (var i = 0, childNodes = element.childNodes; i < childNodes.length; i++) {
+jqLiteDealoc(childNodes[i]);
+}
+while (element.firstChild) {
+element.removeChild(element.firstChild);
+}
+}
+//////////////////////////////////////////
+// Functions which are declared directly.
+//////////////////////////////////////////
+var JQLitePrototype = JQLite.prototype = {
+ready: function(fn) {
+var fired = false;
+function trigger() {
+if (fired) return;
+fired = true;
+fn();
+}
+// check if document already is loaded
+if (document.readyState === 'complete'){
+setTimeout(trigger);
+} else {
+this.on('DOMContentLoaded', trigger); // works for modern browsers and IE9
+// we can not use jqLite since we are not done loading and jQuery could be loaded later.
+// jshint -W064
+JQLite(window).on('load', trigger); // fallback to window.onload for others
+// jshint +W064
+}
+},
+toString: function() {
+var value = [];
+forEach(this, function(e){ value.push('' + e);});
+return '[' + value.join(', ') + ']';
+},
+eq: function(index) {
+return (index >= 0) ? jqLite(this[index]) : jqLite(this[this.length + index]);
+},
+length: 0,
+push: push,
+sort: [].sort,
+splice: [].splice
+};
+//////////////////////////////////////////
+// Functions iterating getter/setters.
+// these functions return self on setter and
+// value on get.
+//////////////////////////////////////////
+var BOOLEAN_ATTR = {};
+forEach('multiple,selected,checked,disabled,readOnly,required,open'.split(','), function(value) {
+BOOLEAN_ATTR[lowercase(value)] = value;
+});
+var BOOLEAN_ELEMENTS = {};
+forEach('input,select,option,textarea,button,form,details'.split(','), function(value) {
+BOOLEAN_ELEMENTS[uppercase(value)] = true;
+});
+function getBooleanAttrName(element, name) {
+// check dom last since we will most likely fail on name
+var booleanAttr = BOOLEAN_ATTR[name.toLowerCase()];
+// booleanAttr is here twice to minimize DOM access
+return booleanAttr && BOOLEAN_ELEMENTS[element.nodeName] && booleanAttr;
+}
+forEach({
+data: jqLiteData,
+inheritedData: jqLiteInheritedData,
+scope: function(element) {
+// Can't use jqLiteData here directly so we stay compatible with jQuery!
+return jqLite(element).data('$scope') || jqLiteInheritedData(element.parentNode || element, ['$isolateScope', '$scope']);
+},
+isolateScope: function(element) {
+// Can't use jqLiteData here directly so we stay compatible with jQuery!
+return jqLite(element).data('$isolateScope') || jqLite(element).data('$isolateScopeNoTemplate');
+},
+controller: jqLiteController,
+injector: function(element) {
+return jqLiteInheritedData(element, '$injector');
+},
+removeAttr: function(element,name) {
+element.removeAttribute(name);
+},
+hasClass: jqLiteHasClass,
+css: function(element, name, value) {
+name = camelCase(name);
+if (isDefined(value)) {
+element.style[name] = value;
+} else {
+var val;
+if (msie <= 8) {
+// this is some IE specific weirdness that jQuery 1.6.4 does not sure why
+val = element.currentStyle && element.currentStyle[name];
+if (val === '') val = 'auto';
+}
+val = val || element.style[name];
+if (msie <= 8) {
+// jquery weirdness :-/
+val = (val === '') ? undefined : val;
+}
+return  val;
+}
+},
+attr: function(element, name, value){
+var lowercasedName = lowercase(name);
+if (BOOLEAN_ATTR[lowercasedName]) {
+if (isDefined(value)) {
+if (!!value) {
+element[name] = true;
+element.setAttribute(name, lowercasedName);
+} else {
+element[name] = false;
+element.removeAttribute(lowercasedName);
+}
+} else {
+return (element[name] ||
+(element.attributes.getNamedItem(name)|| noop).specified)
+? lowercasedName
+: undefined;
+}
+} else if (isDefined(value)) {
+element.setAttribute(name, value);
+} else if (element.getAttribute) {
+// the extra argument "2" is to get the right thing for a.href in IE, see jQuery code
+// some elements (e.g. Document) don't have get attribute, so return undefined
+var ret = element.getAttribute(name, 2);
+// normalize non-existing attributes to undefined (as jQuery)
+return ret === null ? undefined : ret;
+}
+},
+prop: function(element, name, value) {
+if (isDefined(value)) {
+element[name] = value;
+} else {
+return element[name];
+}
+},
+text: (function() {
+var NODE_TYPE_TEXT_PROPERTY = [];
+if (msie < 9) {
+NODE_TYPE_TEXT_PROPERTY[1] = 'innerText';    /** Element **/
+NODE_TYPE_TEXT_PROPERTY[3] = 'nodeValue';    /** Text **/
+} else {
+NODE_TYPE_TEXT_PROPERTY[1] =                 /** Element **/
+NODE_TYPE_TEXT_PROPERTY[3] = 'textContent';  /** Text **/
+}
+getText.$dv = '';
+return getText;
+function getText(element, value) {
+var textProp = NODE_TYPE_TEXT_PROPERTY[element.nodeType];
+if (isUndefined(value)) {
+return textProp ? element[textProp] : '';
+}
+element[textProp] = value;
+}
+})(),
+val: function(element, value) {
+if (isUndefined(value)) {
+if (nodeName_(element) === 'SELECT' && element.multiple) {
+var result = [];
+forEach(element.options, function (option) {
+if (option.selected) {
+result.push(option.value || option.text);
+}
+});
+return result.length === 0 ? null : result;
+}
+return element.value;
+}
+element.value = value;
+},
+html: function(element, value) {
+if (isUndefined(value)) {
+return element.innerHTML;
+}
+for (var i = 0, childNodes = element.childNodes; i < childNodes.length; i++) {
+jqLiteDealoc(childNodes[i]);
+}
+element.innerHTML = value;
+},
+empty: jqLiteEmpty
+}, function(fn, name){
+/**
+* Properties: writes return selection, reads return first value
+*/
+JQLite.prototype[name] = function(arg1, arg2) {
+var i, key;
+// jqLiteHasClass has only two arguments, but is a getter-only fn, so we need to special-case it
+// in a way that survives minification.
+// jqLiteEmpty takes no arguments but is a setter.
+if (fn !== jqLiteEmpty &&
+(((fn.length == 2 && (fn !== jqLiteHasClass && fn !== jqLiteController)) ? arg1 : arg2) === undefined)) {
+if (isObject(arg1)) {
+// we are a write, but the object properties are the key/values
+for (i = 0; i < this.length; i++) {
+if (fn === jqLiteData) {
+// data() takes the whole object in jQuery
+fn(this[i], arg1);
+} else {
+for (key in arg1) {
+fn(this[i], key, arg1[key]);
+}
+}
+}
+// return self for chaining
+return this;
+} else {
+// we are a read, so read the first child.
+var value = fn.$dv;
+// Only if we have $dv do we iterate over all, otherwise it is just the first element.
+var jj = (value === undefined) ? Math.min(this.length, 1) : this.length;
+for (var j = 0; j < jj; j++) {
+var nodeValue = fn(this[j], arg1, arg2);
+value = value ? value + nodeValue : nodeValue;
+}
+return value;
+}
+} else {
+// we are a write, so apply to all children
+for (i = 0; i < this.length; i++) {
+fn(this[i], arg1, arg2);
+}
+// return self for chaining
+return this;
+}
+};
+});
+function createEventHandler(element, events) {
+var eventHandler = function (event, type) {
+if (!event.preventDefault) {
+event.preventDefault = function() {
+event.returnValue = false; //ie
+};
+}
+if (!event.stopPropagation) {
+event.stopPropagation = function() {
+event.cancelBubble = true; //ie
+};
+}
+if (!event.target) {
+event.target = event.srcElement || document;
+}
+if (isUndefined(event.defaultPrevented)) {
+var prevent = event.preventDefault;
+event.preventDefault = function() {
+event.defaultPrevented = true;
+prevent.call(event);
+};
+event.defaultPrevented = false;
+}
+event.isDefaultPrevented = function() {
+return event.defaultPrevented || event.returnValue === false;
+};
+// Copy event handlers in case event handlers array is modified during execution.
+var eventHandlersCopy = shallowCopy(events[type || event.type] || []);
+forEach(eventHandlersCopy, function(fn) {
+fn.call(element, event);
+});
+// Remove monkey-patched methods (IE),
+// as they would cause memory leaks in IE8.
+if (msie <= 8) {
+// IE7/8 does not allow to delete property on native object
+event.preventDefault = null;
+event.stopPropagation = null;
+event.isDefaultPrevented = null;
+} else {
+// It shouldn't affect normal browsers (native methods are defined on prototype).
+delete event.preventDefault;
+delete event.stopPropagation;
+delete event.isDefaultPrevented;
+}
+};
+eventHandler.elem = element;
+return eventHandler;
+}
+//////////////////////////////////////////
+// Functions iterating traversal.
+// These functions chain results into a single
+// selector.
+//////////////////////////////////////////
+forEach({
+removeData: jqLiteRemoveData,
+dealoc: jqLiteDealoc,
+on: function onFn(element, type, fn, unsupported){
+if (isDefined(unsupported)) throw jqLiteMinErr('onargs', 'jqLite#on() does not support the `selector` or `eventData` parameters');
+var events = jqLiteExpandoStore(element, 'events'),
+handle = jqLiteExpandoStore(element, 'handle');
+if (!events) jqLiteExpandoStore(element, 'events', events = {});
+if (!handle) jqLiteExpandoStore(element, 'handle', handle = createEventHandler(element, events));
+forEach(type.split(' '), function(type){
+var eventFns = events[type];
+if (!eventFns) {
+if (type == 'mouseenter' || type == 'mouseleave') {
+var contains = document.body.contains || document.body.compareDocumentPosition ?
+function( a, b ) {
+// jshint bitwise: false
+var adown = a.nodeType === 9 ? a.documentElement : a,
+bup = b && b.parentNode;
+return a === bup || !!( bup && bup.nodeType === 1 && (
+adown.contains ?
+adown.contains( bup ) :
+a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
+));
+} :
+function( a, b ) {
+if ( b ) {
+while ( (b = b.parentNode) ) {
+if ( b === a ) {
+return true;
+}
+}
+}
+return false;
+};
+events[type] = [];
+// Refer to jQuery's implementation of mouseenter & mouseleave
+// Read about mouseenter and mouseleave:
+// http://www.quirksmode.org/js/events_mouse.html#link8
+var eventmap = { mouseleave : "mouseout", mouseenter : "mouseover"};
+onFn(element, eventmap[type], function(event) {
+var target = this, related = event.relatedTarget;
+// For mousenter/leave call the handler if related is outside the target.
+// NB: No relatedTarget if the mouse left/entered the browser window
+if ( !related || (related !== target && !contains(target, related)) ){
+handle(event, type);
+}
+});
+} else {
+addEventListenerFn(element, type, handle);
+events[type] = [];
+}
+eventFns = events[type];
+}
+eventFns.push(fn);
+});
+},
+off: jqLiteOff,
+one: function(element, type, fn) {
+element = jqLite(element);
+//add the listener twice so that when it is called
+//you can remove the original function and still be
+//able to call element.off(ev, fn) normally
+element.on(type, function onFn() {
+element.off(type, fn);
+element.off(type, onFn);
+});
+element.on(type, fn);
+},
+replaceWith: function(element, replaceNode) {
+var index, parent = element.parentNode;
+jqLiteDealoc(element);
+forEach(new JQLite(replaceNode), function(node){
+if (index) {
+parent.insertBefore(node, index.nextSibling);
+} else {
+parent.replaceChild(node, element);
+}
+index = node;
+});
+},
+children: function(element) {
+var children = [];
+forEach(element.childNodes, function(element){
+if (element.nodeType === 1)
+children.push(element);
+});
+return children;
+},
+contents: function(element) {
+return element.contentDocument || element.childNodes || [];
+},
+append: function(element, node) {
+forEach(new JQLite(node), function(child){
+if (element.nodeType === 1 || element.nodeType === 11) {
+element.appendChild(child);
+}
+});
+},
+prepend: function(element, node) {
+if (element.nodeType === 1) {
+var index = element.firstChild;
+forEach(new JQLite(node), function(child){
+element.insertBefore(child, index);
+});
+}
+},
+wrap: function(element, wrapNode) {
+wrapNode = jqLite(wrapNode)[0];
+var parent = element.parentNode;
+if (parent) {
+parent.replaceChild(wrapNode, element);
+}
+wrapNode.appendChild(element);
+},
+remove: function(element) {
+jqLiteDealoc(element);
+var parent = element.parentNode;
+if (parent) parent.removeChild(element);
+},
+after: function(element, newElement) {
+var index = element, parent = element.parentNode;
+forEach(new JQLite(newElement), function(node){
+parent.insertBefore(node, index.nextSibling);
+index = node;
+});
+},
+addClass: jqLiteAddClass,
+removeClass: jqLiteRemoveClass,
+toggleClass: function(element, selector, condition) {
+if (selector) {
+forEach(selector.split(' '), function(className){
+var classCondition = condition;
+if (isUndefined(classCondition)) {
+classCondition = !jqLiteHasClass(element, className);
+}
+(classCondition ? jqLiteAddClass : jqLiteRemoveClass)(element, className);
+});
+}
+},
+parent: function(element) {
+var parent = element.parentNode;
+return parent && parent.nodeType !== 11 ? parent : null;
+},
+next: function(element) {
+if (element.nextElementSibling) {
+return element.nextElementSibling;
+}
+// IE8 doesn't have nextElementSibling
+var elm = element.nextSibling;
+while (elm != null && elm.nodeType !== 1) {
+elm = elm.nextSibling;
+}
+return elm;
+},
+find: function(element, selector) {
+if (element.getElementsByTagName) {
+return element.getElementsByTagName(selector);
+} else {
+return [];
+}
+},
+clone: jqLiteClone,
+triggerHandler: function(element, eventName, eventData) {
+var eventFns = (jqLiteExpandoStore(element, 'events') || {})[eventName];
+eventData = eventData || [];
+var event = [{
+preventDefault: noop,
+stopPropagation: noop
+}];
+forEach(eventFns, function(fn) {
+fn.apply(element, event.concat(eventData));
+});
+}
+}, function(fn, name){
+/**
+* chaining functions
+*/
+JQLite.prototype[name] = function(arg1, arg2, arg3) {
+var value;
+for(var i=0; i < this.length; i++) {
+if (isUndefined(value)) {
+value = fn(this[i], arg1, arg2, arg3);
+if (isDefined(value)) {
+// any function which returns a value needs to be wrapped
+value = jqLite(value);
+}
+} else {
+jqLiteAddNodes(value, fn(this[i], arg1, arg2, arg3));
+}
+}
+return isDefined(value) ? value : this;
+};
+// bind legacy bind/unbind to on/off
+JQLite.prototype.bind = JQLite.prototype.on;
+JQLite.prototype.unbind = JQLite.prototype.off;
+});
+/**
+* Computes a hash of an 'obj'.
+* Hash of a:
+*  string is string
+*  number is number as string
+*  object is either result of calling $$hashKey function on the object or uniquely generated id,
+*         that is also assigned to the $$hashKey property of the object.
+*
+* @param obj
+* @returns {string} hash string such that the same input will have the same hash string.
+*         The resulting string key is in 'type:hashKey' format.
+*/
+function hashKey(obj) {
+var objType = typeof obj,
+key;
+if (objType == 'object' && obj !== null) {
+if (typeof (key = obj.$$hashKey) == 'function') {
+// must invoke on object to keep the right this
+key = obj.$$hashKey();
+} else if (key === undefined) {
+key = obj.$$hashKey = nextUid();
+}
+} else {
+key = obj;
+}
+return objType + ':' + key;
+}
+/**
+* HashMap which can use objects as keys
+*/
+function HashMap(array){
+forEach(array, this.put, this);
+}
+HashMap.prototype = {
+/**
+* Store key value pair
+* @param key key to store can be any type
+* @param value value to store can be any type
+*/
+put: function(key, value) {
+this[hashKey(key)] = value;
+},
+/**
+* @param key
+* @returns {Object} the value for the key
+*/
+get: function(key) {
+return this[hashKey(key)];
+},
+/**
+* Remove the key/value pair
+* @param key
+*/
+remove: function(key) {
+var value = this[key = hashKey(key)];
+delete this[key];
+return value;
+}
+};
+/**
+* @ngdoc function
+* @module ng
+* @name angular.injector
+* @function
+*
+* @description
+* Creates an injector function that can be used for retrieving services as well as for
+* dependency injection (see {@link guide/di dependency injection}).
+*
+* @param {Array.<string|Function>} modules A list of module functions or their aliases. See
+*        {@link angular.module}. The `ng` module must be explicitly added.
+* @returns {function()} Injector function. See {@link auto.$injector $injector}.
+*
+* @example
+* Typical usage
+* ```js
+*   // create an injector
+*   var $injector = angular.injector(['ng']);
+*
+*   // use the injector to kick off your application
+*   // use the type inference to auto inject arguments, or use implicit injection
+*   $injector.invoke(function($rootScope, $compile, $document){
+*     $compile($document)($rootScope);
+*     $rootScope.$digest();
+*   });
+* ```
+*
+* Sometimes you want to get access to the injector of a currently running Angular app
+* from outside Angular. Perhaps, you want to inject and compile some markup after the
+* application has been bootstrapped. You can do this using extra `injector()` added
+* to JQuery/jqLite elements. See {@link angular.element}.
+*
+* *This is fairly rare but could be the case if a third party library is injecting the
+* markup.*
+*
+* In the following example a new block of HTML containing a `ng-controller`
+* directive is added to the end of the document body by JQuery. We then compile and link
+* it into the current AngularJS scope.
+*
+* ```js
+* var $div = $('<div ng-controller="MyCtrl">{{content.label}}</div>');
+* $(document.body).append($div);
+*
+* angular.element(document).injector().invoke(function($compile) {
+*   var scope = angular.element($div).scope();
+*   $compile($div)(scope);
+* });
+* ```
+*/
+/**
+* @ngdoc module
+* @name auto
+* @description
+*
+* Implicit module which gets automatically added to each {@link auto.$injector $injector}.
+*/
+var FN_ARGS = /^function\s*[^\(]*\(\s*([^\)]*)\)/m;
+var FN_ARG_SPLIT = /,/;
+var FN_ARG = /^\s*(_?)(\S+?)\1\s*$/;
+var STRIP_COMMENTS = /((\/\/.*$)|(\/\*[\s\S]*?\*\/))/mg;
+var $injectorMinErr = minErr('$injector');
+function annotate(fn) {
+var $inject,
+fnText,
+argDecl,
+last;
+if (typeof fn == 'function') {
+if (!($inject = fn.$inject)) {
+$inject = [];
+if (fn.length) {
+fnText = fn.toString().replace(STRIP_COMMENTS, '');
+argDecl = fnText.match(FN_ARGS);
+forEach(argDecl[1].split(FN_ARG_SPLIT), function(arg){
+arg.replace(FN_ARG, function(all, underscore, name){
+$inject.push(name);
+});
+});
+}
+fn.$inject = $inject;
+}
+} else if (isArray(fn)) {
+last = fn.length - 1;
+assertArgFn(fn[last], 'fn');
+$inject = fn.slice(0, last);
+} else {
+assertArgFn(fn, 'fn', true);
+}
+return $inject;
+}
+///////////////////////////////////////
+/**
+* @ngdoc service
+* @name $injector
+* @function
+*
+* @description
+*
+* `$injector` is used to retrieve object instances as defined by
+* {@link auto.$provide provider}, instantiate types, invoke methods,
+* and load modules.
+*
+* The following always holds true:
+*
+* ```js
+*   var $injector = angular.injector();
+*   expect($injector.get('$injector')).toBe($injector);
+*   expect($injector.invoke(function($injector){
+*     return $injector;
+*   }).toBe($injector);
+* ```
+*
+* # Injection Function Annotation
+*
+* JavaScript does not have annotations, and annotations are needed for dependency injection. The
+* following are all valid ways of annotating function with injection arguments and are equivalent.
+*
+* ```js
+*   // inferred (only works if code not minified/obfuscated)
+*   $injector.invoke(function(serviceA){});
+*
+*   // annotated
+*   function explicit(serviceA) {};
+*   explicit.$inject = ['serviceA'];
+*   $injector.invoke(explicit);
+*
+*   // inline
+*   $injector.invoke(['serviceA', function(serviceA){}]);
+* ```
+*
+* ## Inference
+*
+* In JavaScript calling `toString()` on a function returns the function definition. The definition
+* can then be parsed and the function arguments can be extracted. *NOTE:* This does not work with
+* minification, and obfuscation tools since these tools change the argument names.
+*
+* ## `$inject` Annotation
+* By adding a `$inject` property onto a function the injection parameters can be specified.
+*
+* ## Inline
+* As an array of injection names, where the last item in the array is the function to call.
+*/
+/**
+* @ngdoc method
+* @name $injector#get
+*
+* @description
+* Return an instance of the service.
+*
+* @param {string} name The name of the instance to retrieve.
+* @return {*} The instance.
+*/
+/**
+* @ngdoc method
+* @name $injector#invoke
+*
+* @description
+* Invoke the method and supply the method arguments from the `$injector`.
+*
+* @param {!Function} fn The function to invoke. Function parameters are injected according to the
+*   {@link guide/di $inject Annotation} rules.
+* @param {Object=} self The `this` for the invoked method.
+* @param {Object=} locals Optional object. If preset then any argument names are read from this
+*                         object first, before the `$injector` is consulted.
+* @returns {*} the value returned by the invoked `fn` function.
+*/
+/**
+* @ngdoc method
+* @name $injector#has
+*
+* @description
+* Allows the user to query if the particular service exist.
+*
+* @param {string} Name of the service to query.
+* @returns {boolean} returns true if injector has given service.
+*/
+/**
+* @ngdoc method
+* @name $injector#instantiate
+* @description
+* Create a new instance of JS type. The method takes a constructor function invokes the new
+* operator and supplies all of the arguments to the constructor function as specified by the
+* constructor annotation.
+*
+* @param {Function} Type Annotated constructor function.
+* @param {Object=} locals Optional object. If preset then any argument names are read from this
+* object first, before the `$injector` is consulted.
+* @returns {Object} new instance of `Type`.
+*/
+/**
+* @ngdoc method
+* @name $injector#annotate
+*
+* @description
+* Returns an array of service names which the function is requesting for injection. This API is
+* used by the injector to determine which services need to be injected into the function when the
+* function is invoked. There are three ways in which the function can be annotated with the needed
+* dependencies.
+*
+* # Argument names
+*
+* The simplest form is to extract the dependencies from the arguments of the function. This is done
+* by converting the function into a string using `toString()` method and extracting the argument
+* names.
+* ```js
+*   // Given
+*   function MyController($scope, $route) {
+*     // ...
+*   }
+*
+*   // Then
+*   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);
+* ```
+*
+* This method does not work with code minification / obfuscation. For this reason the following
+* annotation strategies are supported.
+*
+* # The `$inject` property
+*
+* If a function has an `$inject` property and its value is an array of strings, then the strings
+* represent names of services to be injected into the function.
+* ```js
+*   // Given
+*   var MyController = function(obfuscatedScope, obfuscatedRoute) {
+*     // ...
+*   }
+*   // Define function dependencies
+*   MyController['$inject'] = ['$scope', '$route'];
+*
+*   // Then
+*   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);
+* ```
+*
+* # The array notation
+*
+* It is often desirable to inline Injected functions and that's when setting the `$inject` property
+* is very inconvenient. In these situations using the array notation to specify the dependencies in
+* a way that survives minification is a better choice:
+*
+* ```js
+*   // We wish to write this (not minification / obfuscation safe)
+*   injector.invoke(function($compile, $rootScope) {
+*     // ...
+*   });
+*
+*   // We are forced to write break inlining
+*   var tmpFn = function(obfuscatedCompile, obfuscatedRootScope) {
+*     // ...
+*   };
+*   tmpFn.$inject = ['$compile', '$rootScope'];
+*   injector.invoke(tmpFn);
+*
+*   // To better support inline function the inline annotation is supported
+*   injector.invoke(['$compile', '$rootScope', function(obfCompile, obfRootScope) {
+*     // ...
+*   }]);
+*
+*   // Therefore
+*   expect(injector.annotate(
+*      ['$compile', '$rootScope', function(obfus_$compile, obfus_$rootScope) {}])
+*    ).toEqual(['$compile', '$rootScope']);
+* ```
+*
+* @param {Function|Array.<string|Function>} fn Function for which dependent service names need to
+* be retrieved as described above.
+*
+* @returns {Array.<string>} The names of the services which the function requires.
+*/
+/**
+* @ngdoc object
+* @name $provide
+*
+* @description
+*
+* The {@link auto.$provide $provide} service has a number of methods for registering components
+* with the {@link auto.$injector $injector}. Many of these functions are also exposed on
+* {@link angular.Module}.
+*
+* An Angular **service** is a singleton object created by a **service factory**.  These **service
+* factories** are functions which, in turn, are created by a **service provider**.
+* The **service providers** are constructor functions. When instantiated they must contain a
+* property called `$get`, which holds the **service factory** function.
+*
+* When you request a service, the {@link auto.$injector $injector} is responsible for finding the
+* correct **service provider**, instantiating it and then calling its `$get` **service factory**
+* function to get the instance of the **service**.
+*
+* Often services have no configuration options and there is no need to add methods to the service
+* provider.  The provider will be no more than a constructor function with a `$get` property. For
+* these cases the {@link auto.$provide $provide} service has additional helper methods to register
+* services without specifying a provider.
+*
+* * {@link auto.$provide#provider provider(provider)} - registers a **service provider** with the
+*     {@link auto.$injector $injector}
+* * {@link auto.$provide#constant constant(obj)} - registers a value/object that can be accessed by
+*     providers and services.
+* * {@link auto.$provide#value value(obj)} - registers a value/object that can only be accessed by
+*     services, not providers.
+* * {@link auto.$provide#factory factory(fn)} - registers a service **factory function**, `fn`,
+*     that will be wrapped in a **service provider** object, whose `$get` property will contain the
+*     given factory function.
+* * {@link auto.$provide#service service(class)} - registers a **constructor function**, `class`
+*     that will be wrapped in a **service provider** object, whose `$get` property will instantiate
+*      a new object using the given constructor function.
+*
+* See the individual methods for more information and examples.
+*/
+/**
+* @ngdoc method
+* @name $provide#provider
+* @description
+*
+* Register a **provider function** with the {@link auto.$injector $injector}. Provider functions
+* are constructor functions, whose instances are responsible for "providing" a factory for a
+* service.
+*
+* Service provider names start with the name of the service they provide followed by `Provider`.
+* For example, the {@link ng.$log $log} service has a provider called
+* {@link ng.$logProvider $logProvider}.
+*
+* Service provider objects can have additional methods which allow configuration of the provider
+* and its service. Importantly, you can configure what kind of service is created by the `$get`
+* method, or how that service will act. For example, the {@link ng.$logProvider $logProvider} has a
+* method {@link ng.$logProvider#debugEnabled debugEnabled}
+* which lets you specify whether the {@link ng.$log $log} service will log debug messages to the
+* console or not.
+*
+* @param {string} name The name of the instance. NOTE: the provider will be available under `name +
+'Provider'` key.
+* @param {(Object|function())} provider If the provider is:
+*
+*   - `Object`: then it should have a `$get` method. The `$get` method will be invoked using
+*     {@link auto.$injector#invoke $injector.invoke()} when an instance needs to be created.
+*   - `Constructor`: a new instance of the provider will be created using
+*     {@link auto.$injector#instantiate $injector.instantiate()}, then treated as `object`.
+*
+* @returns {Object} registered provider instance
+* @example
+*
+* The following example shows how to create a simple event tracking service and register it using
+* {@link auto.$provide#provider $provide.provider()}.
+*
+* ```js
+*  // Define the eventTracker provider
+*  function EventTrackerProvider() {
+*    var trackingUrl = '/track';
+*
+*    // A provider method for configuring where the tracked events should been saved
+*    this.setTrackingUrl = function(url) {
+*      trackingUrl = url;
+*    };
+*
+*    // The service factory function
+*    this.$get = ['$http', function($http) {
+*      var trackedEvents = {};
+*      return {
+*        // Call this to track an event
+*        event: function(event) {
+*          var count = trackedEvents[event] || 0;
+*          count += 1;
+*          trackedEvents[event] = count;
+*          return count;
+*        },
+*        // Call this to save the tracked events to the trackingUrl
+*        save: function() {
+*          $http.post(trackingUrl, trackedEvents);
+*        }
+*      };
+*    }];
+*  }
+*
+*  describe('eventTracker', function() {
+*    var postSpy;
+*
+*    beforeEach(module(function($provide) {
+*      // Register the eventTracker provider
+*      $provide.provider('eventTracker', EventTrackerProvider);
+*    }));
+*
+*    beforeEach(module(function(eventTrackerProvider) {
+*      // Configure eventTracker provider
+*      eventTrackerProvider.setTrackingUrl('/custom-track');
+*    }));
+*
+*    it('tracks events', inject(function(eventTracker) {
+*      expect(eventTracker.event('login')).toEqual(1);
+*      expect(eventTracker.event('login')).toEqual(2);
+*    }));
+*
+*    it('saves to the tracking url', inject(function(eventTracker, $http) {
+*      postSpy = spyOn($http, 'post');
+*      eventTracker.event('login');
+*      eventTracker.save();
+*      expect(postSpy).toHaveBeenCalled();
+*      expect(postSpy.mostRecentCall.args[0]).not.toEqual('/track');
+*      expect(postSpy.mostRecentCall.args[0]).toEqual('/custom-track');
+*      expect(postSpy.mostRecentCall.args[1]).toEqual({ 'login': 1 });
+*    }));
+*  });
+* ```
+*/
+/**
+* @ngdoc method
+* @name $provide#factory
+* @description
+*
+* Register a **service factory**, which will be called to return the service instance.
+* This is short for registering a service where its provider consists of only a `$get` property,
+* which is the given service factory function.
+* You should use {@link auto.$provide#factory $provide.factory(getFn)} if you do not need to
+* configure your service in a provider.
+*
+* @param {string} name The name of the instance.
+* @param {function()} $getFn The $getFn for the instance creation. Internally this is a short hand
+*                            for `$provide.provider(name, {$get: $getFn})`.
+* @returns {Object} registered provider instance
+*
+* @example
+* Here is an example of registering a service
+* ```js
+*   $provide.factory('ping', ['$http', function($http) {
+*     return function ping() {
+*       return $http.send('/ping');
+*     };
+*   }]);
+* ```
+* You would then inject and use this service like this:
+* ```js
+*   someModule.controller('Ctrl', ['ping', function(ping) {
+*     ping();
+*   }]);
+* ```
+*/
+/**
+* @ngdoc method
+* @name $provide#service
+* @description
+*
+* Register a **service constructor**, which will be invoked with `new` to create the service
+* instance.
+* This is short for registering a service where its provider's `$get` property is the service
+* constructor function that will be used to instantiate the service instance.
+*
+* You should use {@link auto.$provide#service $provide.service(class)} if you define your service
+* as a type/class.
+*
+* @param {string} name The name of the instance.
+* @param {Function} constructor A class (constructor function) that will be instantiated.
+* @returns {Object} registered provider instance
+*
+* @example
+* Here is an example of registering a service using
+* {@link auto.$provide#service $provide.service(class)}.
+* ```js
+*   var Ping = function($http) {
+*     this.$http = $http;
+*   };
+*
+*   Ping.$inject = ['$http'];
+*
+*   Ping.prototype.send = function() {
+*     return this.$http.get('/ping');
+*   };
+*   $provide.service('ping', Ping);
+* ```
+* You would then inject and use this service like this:
+* ```js
+*   someModule.controller('Ctrl', ['ping', function(ping) {
+*     ping.send();
+*   }]);
+* ```
+*/
+/**
+* @ngdoc method
+* @name $provide#value
+* @description
+*
+* Register a **value service** with the {@link auto.$injector $injector}, such as a string, a
+* number, an array, an object or a function.  This is short for registering a service where its
+* provider's `$get` property is a factory function that takes no arguments and returns the **value
+* service**.
+*
+* Value services are similar to constant services, except that they cannot be injected into a
+* module configuration function (see {@link angular.Module#config}) but they can be overridden by
+* an Angular
+* {@link auto.$provide#decorator decorator}.
+*
+* @param {string} name The name of the instance.
+* @param {*} value The value.
+* @returns {Object} registered provider instance
+*
+* @example
+* Here are some examples of creating value services.
+* ```js
+*   $provide.value('ADMIN_USER', 'admin');
+*
+*   $provide.value('RoleLookup', { admin: 0, writer: 1, reader: 2 });
+*
+*   $provide.value('halfOf', function(value) {
+*     return value / 2;
+*   });
+* ```
+*/
+/**
+* @ngdoc method
+* @name $provide#constant
+* @description
+*
+* Register a **constant service**, such as a string, a number, an array, an object or a function,
+* with the {@link auto.$injector $injector}. Unlike {@link auto.$provide#value value} it can be
+* injected into a module configuration function (see {@link angular.Module#config}) and it cannot
+* be overridden by an Angular {@link auto.$provide#decorator decorator}.
+*
+* @param {string} name The name of the constant.
+* @param {*} value The constant value.
+* @returns {Object} registered instance
+*
+* @example
+* Here a some examples of creating constants:
+* ```js
+*   $provide.constant('SHARD_HEIGHT', 306);
+*
+*   $provide.constant('MY_COLOURS', ['red', 'blue', 'grey']);
+*
+*   $provide.constant('double', function(value) {
+*     return value * 2;
+*   });
+* ```
+*/
+/**
+* @ngdoc method
+* @name $provide#decorator
+* @description
+*
+* Register a **service decorator** with the {@link auto.$injector $injector}. A service decorator
+* intercepts the creation of a service, allowing it to override or modify the behaviour of the
+* service. The object returned by the decorator may be the original service, or a new service
+* object which replaces or wraps and delegates to the original service.
+*
+* @param {string} name The name of the service to decorate.
+* @param {function()} decorator This function will be invoked when the service needs to be
+*    instantiated and should return the decorated service instance. The function is called using
+*    the {@link auto.$injector#invoke injector.invoke} method and is therefore fully injectable.
+*    Local injection arguments:
+*
+*    * `$delegate` - The original service instance, which can be monkey patched, configured,
+*      decorated or delegated to.
+*
+* @example
+* Here we decorate the {@link ng.$log $log} service to convert warnings to errors by intercepting
+* calls to {@link ng.$log#error $log.warn()}.
+* ```js
+*   $provide.decorator('$log', ['$delegate', function($delegate) {
+*     $delegate.warn = $delegate.error;
+*     return $delegate;
+*   }]);
+* ```
+*/
+function createInjector(modulesToLoad) {
+var INSTANTIATING = {},
+providerSuffix = 'Provider',
+path = [],
+loadedModules = new HashMap(),
+providerCache = {
+$provide: {
+provider: supportObject(provider),
+factory: supportObject(factory),
+service: supportObject(service),
+value: supportObject(value),
+constant: supportObject(constant),
+decorator: decorator
+}
+},
+providerInjector = (providerCache.$injector =
+createInternalInjector(providerCache, function() {
+throw $injectorMinErr('unpr', "Unknown provider: {0}", path.join(' <- '));
+})),
+instanceCache = {},
+instanceInjector = (instanceCache.$injector =
+createInternalInjector(instanceCache, function(servicename) {
+var provider = providerInjector.get(servicename + providerSuffix);
+return instanceInjector.invoke(provider.$get, provider);
+}));
+forEach(loadModules(modulesToLoad), function(fn) { instanceInjector.invoke(fn || noop); });
+return instanceInjector;
+////////////////////////////////////
+// $provider
+////////////////////////////////////
+function supportObject(delegate) {
+return function(key, value) {
+if (isObject(key)) {
+forEach(key, reverseParams(delegate));
+} else {
+return delegate(key, value);
+}
+};
+}
+function provider(name, provider_) {
+assertNotHasOwnProperty(name, 'service');
+if (isFunction(provider_) || isArray(provider_)) {
+provider_ = providerInjector.instantiate(provider_);
+}
+if (!provider_.$get) {
+throw $injectorMinErr('pget', "Provider '{0}' must define $get factory method.", name);
+}
+return providerCache[name + providerSuffix] = provider_;
+}
+function factory(name, factoryFn) { return provider(name, { $get: factoryFn }); }
+function service(name, constructor) {
+return factory(name, ['$injector', function($injector) {
+return $injector.instantiate(constructor);
+}]);
+}
+function value(name, val) { return factory(name, valueFn(val)); }
+function constant(name, value) {
+assertNotHasOwnProperty(name, 'constant');
+providerCache[name] = value;
+instanceCache[name] = value;
+}
+function decorator(serviceName, decorFn) {
+var origProvider = providerInjector.get(serviceName + providerSuffix),
+orig$get = origProvider.$get;
+origProvider.$get = function() {
+var origInstance = instanceInjector.invoke(orig$get, origProvider);
+return instanceInjector.invoke(decorFn, null, {$delegate: origInstance});
+};
+}
+////////////////////////////////////
+// Module Loading
+////////////////////////////////////
+function loadModules(modulesToLoad){
+var runBlocks = [], moduleFn, invokeQueue, i, ii;
+forEach(modulesToLoad, function(module) {
+if (loadedModules.get(module)) return;
+loadedModules.put(module, true);
+try {
+if (isString(module)) {
+moduleFn = angularModule(module);
+runBlocks = runBlocks.concat(loadModules(moduleFn.requires)).concat(moduleFn._runBlocks);
+for(invokeQueue = moduleFn._invokeQueue, i = 0, ii = invokeQueue.length; i < ii; i++) {
+var invokeArgs = invokeQueue[i],
+provider = providerInjector.get(invokeArgs[0]);
+provider[invokeArgs[1]].apply(provider, invokeArgs[2]);
+}
+} else if (isFunction(module)) {
+runBlocks.push(providerInjector.invoke(module));
+} else if (isArray(module)) {
+runBlocks.push(providerInjector.invoke(module));
+} else {
+assertArgFn(module, 'module');
+}
+} catch (e) {
+if (isArray(module)) {
+module = module[module.length - 1];
+}
+if (e.message && e.stack && e.stack.indexOf(e.message) == -1) {
+// Safari & FF's stack traces don't contain error.message content
+// unlike those of Chrome and IE
+// So if stack doesn't contain message, we create a new string that contains both.
+// Since error.stack is read-only in Safari, I'm overriding e and not e.stack here.
+/* jshint -W022 */
+e = e.message + '\n' + e.stack;
+}
+throw $injectorMinErr('modulerr', "Failed to instantiate module {0} due to:\n{1}",
+module, e.stack || e.message || e);
+}
+});
+return runBlocks;
+}
+////////////////////////////////////
+// internal Injector
+////////////////////////////////////
+function createInternalInjector(cache, factory) {
+function getService(serviceName) {
+if (cache.hasOwnProperty(serviceName)) {
+if (cache[serviceName] === INSTANTIATING) {
+throw $injectorMinErr('cdep', 'Circular dependency found: {0}', path.join(' <- '));
+}
+return cache[serviceName];
+} else {
+try {
+path.unshift(serviceName);
+cache[serviceName] = INSTANTIATING;
+return cache[serviceName] = factory(serviceName);
+} catch (err) {
+if (cache[serviceName] === INSTANTIATING) {
+delete cache[serviceName];
+}
+throw err;
+} finally {
+path.shift();
+}
+}
+}
+function invoke(fn, self, locals){
+var args = [],
+$inject = annotate(fn),
+length, i,
+key;
+for(i = 0, length = $inject.length; i < length; i++) {
+key = $inject[i];
+if (typeof key !== 'string') {
+throw $injectorMinErr('itkn',
+'Incorrect injection token! Expected service name as string, got {0}', key);
+}
+args.push(
+locals && locals.hasOwnProperty(key)
+? locals[key]
+: getService(key)
+);
+}
+if (!fn.$inject) {
+// this means that we must be an array.
+fn = fn[length];
+}
+// http://jsperf.com/angularjs-invoke-apply-vs-switch
+// #5388
+return fn.apply(self, args);
+}
+function instantiate(Type, locals) {
+var Constructor = function() {},
+instance, returnedValue;
+// Check if Type is annotated and use just the given function at n-1 as parameter
+// e.g. someModule.factory('greeter', ['$window', function(renamed$window) {}]);
+Constructor.prototype = (isArray(Type) ? Type[Type.length - 1] : Type).prototype;
+instance = new Constructor();
+returnedValue = invoke(Type, instance, locals);
+return isObject(returnedValue) || isFunction(returnedValue) ? returnedValue : instance;
+}
+return {
+invoke: invoke,
+instantiate: instantiate,
+get: getService,
+annotate: annotate,
+has: function(name) {
+return providerCache.hasOwnProperty(name + providerSuffix) || cache.hasOwnProperty(name);
+}
+};
+}
+}
+/**
+* @ngdoc service
+* @name $anchorScroll
+* @kind function
+* @requires $window
+* @requires $location
+* @requires $rootScope
+*
+* @description
+* When called, it checks current value of `$location.hash()` and scroll to related element,
+* according to rules specified in
+* [Html5 spec](http://dev.w3.org/html5/spec/Overview.html#the-indicated-part-of-the-document).
+*
+* It also watches the `$location.hash()` and scrolls whenever it changes to match any anchor.
+* This can be disabled by calling `$anchorScrollProvider.disableAutoScrolling()`.
+*
+* @example
+<example>
+<file name="index.html">
+<div id="scrollArea" ng-controller="ScrollCtrl">
+<a ng-click="gotoBottom()">Go to bottom</a>
+<a id="bottom"></a> You're at the bottom!
+</div>
+</file>
+<file name="script.js">
+function ScrollCtrl($scope, $location, $anchorScroll) {
+$scope.gotoBottom = function (){
+// set the location.hash to the id of
+// the element you wish to scroll to.
+$location.hash('bottom');
+// call $anchorScroll()
+$anchorScroll();
+};
+}
+</file>
+<file name="style.css">
+#scrollArea {
+height: 350px;
+overflow: auto;
+}
+#bottom {
+display: block;
+margin-top: 2000px;
+}
+</file>
+</example>
+*/
+function $AnchorScrollProvider() {
+var autoScrollingEnabled = true;
+this.disableAutoScrolling = function() {
+autoScrollingEnabled = false;
+};
+this.$get = ['$window', '$location', '$rootScope', function($window, $location, $rootScope) {
+var document = $window.document;
+// helper function to get first anchor from a NodeList
+// can't use filter.filter, as it accepts only instances of Array
+// and IE can't convert NodeList to an array using [].slice
+// TODO(vojta): use filter if we change it to accept lists as well
+function getFirstAnchor(list) {
+var result = null;
+forEach(list, function(element) {
+if (!result && lowercase(element.nodeName) === 'a') result = element;
+});
+return result;
+}
+function scroll() {
+var hash = $location.hash(), elm;
+// empty hash, scroll to the top of the page
+if (!hash) $window.scrollTo(0, 0);
+// element with given id
+else if ((elm = document.getElementById(hash))) elm.scrollIntoView();
+// first anchor with given name :-D
+else if ((elm = getFirstAnchor(document.getElementsByName(hash)))) elm.scrollIntoView();
+// no element and hash == 'top', scroll to the top of the page
+else if (hash === 'top') $window.scrollTo(0, 0);
+}
+// does not scroll when user clicks on anchor link that is currently on
+// (no url change, no $location.hash() change), browser native does scroll
+if (autoScrollingEnabled) {
+$rootScope.$watch(function autoScrollWatch() {return $location.hash();},
+function autoScrollWatchAction() {
+$rootScope.$evalAsync(scroll);
+});
+}
+return scroll;
+}];
+}
+var $animateMinErr = minErr('$animate');
+/**
+* @ngdoc provider
+* @name $animateProvider
+*
+* @description
+* Default implementation of $animate that doesn't perform any animations, instead just
+* synchronously performs DOM
+* updates and calls done() callbacks.
+*
+* In order to enable animations the ngAnimate module has to be loaded.
+*
+* To see the functional implementation check out src/ngAnimate/animate.js
+*/
+var $AnimateProvider = ['$provide', function($provide) {
+this.$$selectors = {};
+/**
+* @ngdoc method
+* @name $animateProvider#register
+*
+* @description
+* Registers a new injectable animation factory function. The factory function produces the
+* animation object which contains callback functions for each event that is expected to be
+* animated.
+*
+*   * `eventFn`: `function(Element, doneFunction)` The element to animate, the `doneFunction`
+*   must be called once the element animation is complete. If a function is returned then the
+*   animation service will use this function to cancel the animation whenever a cancel event is
+*   triggered.
+*
+*
+* ```js
+*   return {
+*     eventFn : function(element, done) {
+*       //code to run the animation
+*       //once complete, then run done()
+*       return function cancellationFunction() {
+*         //code to cancel the animation
+*       }
+*     }
+*   }
+* ```
+*
+* @param {string} name The name of the animation.
+* @param {Function} factory The factory function that will be executed to return the animation
+*                           object.
+*/
+this.register = function(name, factory) {
+var key = name + '-animation';
+if (name && name.charAt(0) != '.') throw $animateMinErr('notcsel',
+"Expecting class selector starting with '.' got '{0}'.", name);
+this.$$selectors[name.substr(1)] = key;
+$provide.factory(key, factory);
+};
+/**
+* @ngdoc method
+* @name $animateProvider#classNameFilter
+*
+* @description
+* Sets and/or returns the CSS class regular expression that is checked when performing
+* an animation. Upon bootstrap the classNameFilter value is not set at all and will
+* therefore enable $animate to attempt to perform an animation on any element.
+* When setting the classNameFilter value, animations will only be performed on elements
+* that successfully match the filter expression. This in turn can boost performance
+* for low-powered devices as well as applications containing a lot of structural operations.
+* @param {RegExp=} expression The className expression which will be checked against all animations
+* @return {RegExp} The current CSS className expression value. If null then there is no expression value
+*/
+this.classNameFilter = function(expression) {
+if(arguments.length === 1) {
+this.$$classNameFilter = (expression instanceof RegExp) ? expression : null;
+}
+return this.$$classNameFilter;
+};
+this.$get = ['$timeout', '$$asyncCallback', function($timeout, $$asyncCallback) {
+function async(fn) {
+fn && $$asyncCallback(fn);
+}
+/**
+*
+* @ngdoc service
+* @name $animate
+* @description The $animate service provides rudimentary DOM manipulation functions to
+* insert, remove and move elements within the DOM, as well as adding and removing classes.
+* This service is the core service used by the ngAnimate $animator service which provides
+* high-level animation hooks for CSS and JavaScript.
+*
+* $animate is available in the AngularJS core, however, the ngAnimate module must be included
+* to enable full out animation support. Otherwise, $animate will only perform simple DOM
+* manipulation operations.
+*
+* To learn more about enabling animation support, click here to visit the {@link ngAnimate
+* ngAnimate module page} as well as the {@link ngAnimate.$animate ngAnimate $animate service
+* page}.
+*/
+return {
+/**
+*
+* @ngdoc method
+* @name $animate#enter
+* @function
+* @description Inserts the element into the DOM either after the `after` element or within
+*   the `parent` element. Once complete, the done() callback will be fired (if provided).
+* @param {DOMElement} element the element which will be inserted into the DOM
+* @param {DOMElement} parent the parent element which will append the element as
+*   a child (if the after element is not present)
+* @param {DOMElement} after the sibling element which will append the element
+*   after itself
+* @param {Function=} done callback function that will be called after the element has been
+*   inserted into the DOM
+*/
+enter : function(element, parent, after, done) {
+if (after) {
+after.after(element);
+} else {
+if (!parent || !parent[0]) {
+parent = after.parent();
+}
+parent.append(element);
+}
+async(done);
+},
+/**
+*
+* @ngdoc method
+* @name $animate#leave
+* @function
+* @description Removes the element from the DOM. Once complete, the done() callback will be
+*   fired (if provided).
+* @param {DOMElement} element the element which will be removed from the DOM
+* @param {Function=} done callback function that will be called after the element has been
+*   removed from the DOM
+*/
+leave : function(element, done) {
+element.remove();
+async(done);
+},
+/**
+*
+* @ngdoc method
+* @name $animate#move
+* @function
+* @description Moves the position of the provided element within the DOM to be placed
+* either after the `after` element or inside of the `parent` element. Once complete, the
+* done() callback will be fired (if provided).
+*
+* @param {DOMElement} element the element which will be moved around within the
+*   DOM
+* @param {DOMElement} parent the parent element where the element will be
+*   inserted into (if the after element is not present)
+* @param {DOMElement} after the sibling element where the element will be
+*   positioned next to
+* @param {Function=} done the callback function (if provided) that will be fired after the
+*   element has been moved to its new position
+*/
+move : function(element, parent, after, done) {
+// Do not remove element before insert. Removing will cause data associated with the
+// element to be dropped. Insert will implicitly do the remove.
+this.enter(element, parent, after, done);
+},
+/**
+*
+* @ngdoc method
+* @name $animate#addClass
+* @function
+* @description Adds the provided className CSS class value to the provided element. Once
+* complete, the done() callback will be fired (if provided).
+* @param {DOMElement} element the element which will have the className value
+*   added to it
+* @param {string} className the CSS class which will be added to the element
+* @param {Function=} done the callback function (if provided) that will be fired after the
+*   className value has been added to the element
+*/
+addClass : function(element, className, done) {
+className = isString(className) ?
+className :
+isArray(className) ? className.join(' ') : '';
+forEach(element, function (element) {
+jqLiteAddClass(element, className);
+});
+async(done);
+},
+/**
+*
+* @ngdoc method
+* @name $animate#removeClass
+* @function
+* @description Removes the provided className CSS class value from the provided element.
+* Once complete, the done() callback will be fired (if provided).
+* @param {DOMElement} element the element which will have the className value
+*   removed from it
+* @param {string} className the CSS class which will be removed from the element
+* @param {Function=} done the callback function (if provided) that will be fired after the
+*   className value has been removed from the element
+*/
+removeClass : function(element, className, done) {
+className = isString(className) ?
+className :
+isArray(className) ? className.join(' ') : '';
+forEach(element, function (element) {
+jqLiteRemoveClass(element, className);
+});
+async(done);
+},
+/**
+*
+* @ngdoc method
+* @name $animate#setClass
+* @function
+* @description Adds and/or removes the given CSS classes to and from the element.
+* Once complete, the done() callback will be fired (if provided).
+* @param {DOMElement} element the element which will it's CSS classes changed
+*   removed from it
+* @param {string} add the CSS classes which will be added to the element
+* @param {string} remove the CSS class which will be removed from the element
+* @param {Function=} done the callback function (if provided) that will be fired after the
+*   CSS classes have been set on the element
+*/
+setClass : function(element, add, remove, done) {
+forEach(element, function (element) {
+jqLiteAddClass(element, add);
+jqLiteRemoveClass(element, remove);
+});
+async(done);
+},
+enabled : noop
+};
+}];
+}];
+function $$AsyncCallbackProvider(){
+this.$get = ['$$rAF', '$timeout', function($$rAF, $timeout) {
+return $$rAF.supported
+? function(fn) { return $$rAF(fn); }
+: function(fn) {
+return $timeout(fn, 0, false);
+};
+}];
+}
+/**
+* ! This is a private undocumented service !
+*
+* @name $browser
+* @requires $log
+* @description
+* This object has two goals:
+*
+* - hide all the global state in the browser caused by the window object
+* - abstract away all the browser specific features and inconsistencies
+*
+* For tests we provide {@link ngMock.$browser mock implementation} of the `$browser`
+* service, which can be used for convenient testing of the application without the interaction with
+* the real browser apis.
+*/
+/**
+* @param {object} window The global window object.
+* @param {object} document jQuery wrapped document.
+* @param {function()} XHR XMLHttpRequest constructor.
+* @param {object} $log console.log or an object with the same interface.
+* @param {object} $sniffer $sniffer service
+*/
+function Browser(window, document, $log, $sniffer) {
+var self = this,
+rawDocument = document[0],
+location = window.location,
+history = window.history,
+setTimeout = window.setTimeout,
+clearTimeout = window.clearTimeout,
+pendingDeferIds = {};
+self.isMock = false;
+var outstandingRequestCount = 0;
+var outstandingRequestCallbacks = [];
+// TODO(vojta): remove this temporary api
+self.$$completeOutstandingRequest = completeOutstandingRequest;
+self.$$incOutstandingRequestCount = function() { outstandingRequestCount++; };
+/**
+* Executes the `fn` function(supports currying) and decrements the `outstandingRequestCallbacks`
+* counter. If the counter reaches 0, all the `outstandingRequestCallbacks` are executed.
+*/
+function completeOutstandingRequest(fn) {
+try {
+fn.apply(null, sliceArgs(arguments, 1));
+} finally {
+outstandingRequestCount--;
+if (outstandingRequestCount === 0) {
+while(outstandingRequestCallbacks.length) {
+try {
+outstandingRequestCallbacks.pop()();
+} catch (e) {
+$log.error(e);
+}
+}
+}
+}
+}
+/**
+* @private
+* Note: this method is used only by scenario runner
+* TODO(vojta): prefix this method with $$ ?
+* @param {function()} callback Function that will be called when no outstanding request
+*/
+self.notifyWhenNoOutstandingRequests = function(callback) {
+// force browser to execute all pollFns - this is needed so that cookies and other pollers fire
+// at some deterministic time in respect to the test runner's actions. Leaving things up to the
+// regular poller would result in flaky tests.
+forEach(pollFns, function(pollFn){ pollFn(); });
+if (outstandingRequestCount === 0) {
+callback();
+} else {
+outstandingRequestCallbacks.push(callback);
+}
+};
+//////////////////////////////////////////////////////////////
+// Poll Watcher API
+//////////////////////////////////////////////////////////////
+var pollFns = [],
+pollTimeout;
+/**
+* @name $browser#addPollFn
+*
+* @param {function()} fn Poll function to add
+*
+* @description
+* Adds a function to the list of functions that poller periodically executes,
+* and starts polling if not started yet.
+*
+* @returns {function()} the added function
+*/
+self.addPollFn = function(fn) {
+if (isUndefined(pollTimeout)) startPoller(100, setTimeout);
+pollFns.push(fn);
+return fn;
+};
+/**
+* @param {number} interval How often should browser call poll functions (ms)
+* @param {function()} setTimeout Reference to a real or fake `setTimeout` function.
+*
+* @description
+* Configures the poller to run in the specified intervals, using the specified
+* setTimeout fn and kicks it off.
+*/
+function startPoller(interval, setTimeout) {
+(function check() {
+forEach(pollFns, function(pollFn){ pollFn(); });
+pollTimeout = setTimeout(check, interval);
+})();
+}
+//////////////////////////////////////////////////////////////
+// URL API
+//////////////////////////////////////////////////////////////
+var lastBrowserUrl = location.href,
+baseElement = document.find('base'),
+newLocation = null;
+/**
+* @name $browser#url
+*
+* @description
+* GETTER:
+* Without any argument, this method just returns current value of location.href.
+*
+* SETTER:
+* With at least one argument, this method sets url to new value.
+* If html5 history api supported, pushState/replaceState is used, otherwise
+* location.href/location.replace is used.
+* Returns its own instance to allow chaining
+*
+* NOTE: this api is intended for use only by the $location service. Please use the
+* {@link ng.$location $location service} to change url.
+*
+* @param {string} url New url (when used as setter)
+* @param {boolean=} replace Should new url replace current history record ?
+*/
+self.url = function(url, replace) {
+// Android Browser BFCache causes location, history reference to become stale.
+if (location !== window.location) location = window.location;
+if (history !== window.history) history = window.history;
+// setter
+if (url) {
+if (lastBrowserUrl == url) return;
+lastBrowserUrl = url;
+if ($sniffer.history) {
+if (replace) history.replaceState(null, '', url);
+else {
+history.pushState(null, '', url);
+// Crazy Opera Bug: http://my.opera.com/community/forums/topic.dml?id=1185462
+baseElement.attr('href', baseElement.attr('href'));
+}
+} else {
+newLocation = url;
+if (replace) {
+location.replace(url);
+} else {
+location.href = url;
+}
+}
+return self;
+// getter
+} else {
+// - newLocation is a workaround for an IE7-9 issue with location.replace and location.href
+//   methods not updating location.href synchronously.
+// - the replacement is a workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=407172
+return newLocation || location.href.replace(/%27/g,"'");
+}
+};
+var urlChangeListeners = [],
+urlChangeInit = false;
+function fireUrlChange() {
+newLocation = null;
+if (lastBrowserUrl == self.url()) return;
+lastBrowserUrl = self.url();
+forEach(urlChangeListeners, function(listener) {
+listener(self.url());
+});
+}
+/**
+* @name $browser#onUrlChange
+*
+* @description
+* Register callback function that will be called, when url changes.
+*
+* It's only called when the url is changed from outside of angular:
+* - user types different url into address bar
+* - user clicks on history (forward/back) button
+* - user clicks on a link
+*
+* It's not called when url is changed by $browser.url() method
+*
+* The listener gets called with new url as parameter.
+*
+* NOTE: this api is intended for use only by the $location service. Please use the
+* {@link ng.$location $location service} to monitor url changes in angular apps.
+*
+* @param {function(string)} listener Listener function to be called when url changes.
+* @return {function(string)} Returns the registered listener fn - handy if the fn is anonymous.
+*/
+self.onUrlChange = function(callback) {
+// TODO(vojta): refactor to use node's syntax for events
+if (!urlChangeInit) {
+// We listen on both (hashchange/popstate) when available, as some browsers (e.g. Opera)
+// don't fire popstate when user change the address bar and don't fire hashchange when url
+// changed by push/replaceState
+// html5 history api - popstate event
+if ($sniffer.history) jqLite(window).on('popstate', fireUrlChange);
+// hashchange event
+if ($sniffer.hashchange) jqLite(window).on('hashchange', fireUrlChange);
+// polling
+else self.addPollFn(fireUrlChange);
+urlChangeInit = true;
+}
+urlChangeListeners.push(callback);
+return callback;
+};
+//////////////////////////////////////////////////////////////
+// Misc API
+//////////////////////////////////////////////////////////////
+/**
+* @name $browser#baseHref
+*
+* @description
+* Returns current <base href>
+* (always relative - without domain)
+*
+* @returns {string} The current base href
+*/
+self.baseHref = function() {
+var href = baseElement.attr('href');
+return href ? href.replace(/^(https?\:)?\/\/[^\/]*/, '') : '';
+};
+//////////////////////////////////////////////////////////////
+// Cookies API
+//////////////////////////////////////////////////////////////
+var lastCookies = {};
+var lastCookieString = '';
+var cookiePath = self.baseHref();
+/**
+* @name $browser#cookies
+*
+* @param {string=} name Cookie name
+* @param {string=} value Cookie value
+*
+* @description
+* The cookies method provides a 'private' low level access to browser cookies.
+* It is not meant to be used directly, use the $cookie service instead.
+*
+* The return values vary depending on the arguments that the method was called with as follows:
+*
+* - cookies() -> hash of all cookies, this is NOT a copy of the internal state, so do not modify
+*   it
+* - cookies(name, value) -> set name to value, if value is undefined delete the cookie
+* - cookies(name) -> the same as (name, undefined) == DELETES (no one calls it right now that
+*   way)
+*
+* @returns {Object} Hash of all cookies (if called without any parameter)
+*/
+self.cookies = function(name, value) {
+/* global escape: false, unescape: false */
+var cookieLength, cookieArray, cookie, i, index;
+if (name) {
+if (value === undefined) {
+rawDocument.cookie = escape(name) + "=;path=" + cookiePath +
+";expires=Thu, 01 Jan 1970 00:00:00 GMT";
+} else {
+if (isString(value)) {
+cookieLength = (rawDocument.cookie = escape(name) + '=' + escape(value) +
+';path=' + cookiePath).length + 1;
+// per http://www.ietf.org/rfc/rfc2109.txt browser must allow at minimum:
+// - 300 cookies
+// - 20 cookies per unique domain
+// - 4096 bytes per cookie
+if (cookieLength > 4096) {
+$log.warn("Cookie '"+ name +
+"' possibly not set or overflowed because it was too large ("+
+cookieLength + " > 4096 bytes)!");
+}
+}
+}
+} else {
+if (rawDocument.cookie !== lastCookieString) {
+lastCookieString = rawDocument.cookie;
+cookieArray = lastCookieString.split("; ");
+lastCookies = {};
+for (i = 0; i < cookieArray.length; i++) {
+cookie = cookieArray[i];
+index = cookie.indexOf('=');
+if (index > 0) { //ignore nameless cookies
+name = unescape(cookie.substring(0, index));
+// the first value that is seen for a cookie is the most
+// specific one.  values for the same cookie name that
+// follow are for less specific paths.
+if (lastCookies[name] === undefined) {
+lastCookies[name] = unescape(cookie.substring(index + 1));
+}
+}
+}
+}
+return lastCookies;
+}
+};
+/**
+* @name $browser#defer
+* @param {function()} fn A function, who's execution should be deferred.
+* @param {number=} [delay=0] of milliseconds to defer the function execution.
+* @returns {*} DeferId that can be used to cancel the task via `$browser.defer.cancel()`.
+*
+* @description
+* Executes a fn asynchronously via `setTimeout(fn, delay)`.
+*
+* Unlike when calling `setTimeout` directly, in test this function is mocked and instead of using
+* `setTimeout` in tests, the fns are queued in an array, which can be programmatically flushed
+* via `$browser.defer.flush()`.
+*
+*/
+self.defer = function(fn, delay) {
+var timeoutId;
+outstandingRequestCount++;
+timeoutId = setTimeout(function() {
+delete pendingDeferIds[timeoutId];
+completeOutstandingRequest(fn);
+}, delay || 0);
+pendingDeferIds[timeoutId] = true;
+return timeoutId;
+};
+/**
+* @name $browser#defer.cancel
+*
+* @description
+* Cancels a deferred task identified with `deferId`.
+*
+* @param {*} deferId Token returned by the `$browser.defer` function.
+* @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully
+*                    canceled.
+*/
+self.defer.cancel = function(deferId) {
+if (pendingDeferIds[deferId]) {
+delete pendingDeferIds[deferId];
+clearTimeout(deferId);
+completeOutstandingRequest(noop);
+return true;
+}
+return false;
+};
+}
+function $BrowserProvider(){
+this.$get = ['$window', '$log', '$sniffer', '$document',
+function( $window,   $log,   $sniffer,   $document){
+return new Browser($window, $document, $log, $sniffer);
+}];
+}
+/**
+* @ngdoc service
+* @name $cacheFactory
+*
+* @description
+* Factory that constructs cache objects and gives access to them.
+*
+* ```js
+*
+*  var cache = $cacheFactory('cacheId');
+*  expect($cacheFactory.get('cacheId')).toBe(cache);
+*  expect($cacheFactory.get('noSuchCacheId')).not.toBeDefined();
+*
+*  cache.put("key", "value");
+*  cache.put("another key", "another value");
+*
+*  // We've specified no options on creation
+*  expect(cache.info()).toEqual({id: 'cacheId', size: 2});
+*
+* ```
+*
+*
+* @param {string} cacheId Name or id of the newly created cache.
+* @param {object=} options Options object that specifies the cache behavior. Properties:
+*
+*   - `{number=}` `capacity` — turns the cache into LRU cache.
+*
+* @returns {object} Newly created cache object with the following set of methods:
+*
+* - `{object}` `info()` — Returns id, size, and options of cache.
+* - `{{*}}` `put({string} key, {*} value)` — Puts a new key-value pair into the cache and returns
+*   it.
+* - `{{*}}` `get({string} key)` — Returns cached value for `key` or undefined for cache miss.
+* - `{void}` `remove({string} key)` — Removes a key-value pair from the cache.
+* - `{void}` `removeAll()` — Removes all cached values.
+* - `{void}` `destroy()` — Removes references to this cache from $cacheFactory.
+*
+*/
+function $CacheFactoryProvider() {
+this.$get = function() {
+var caches = {};
+function cacheFactory(cacheId, options) {
+if (cacheId in caches) {
+throw minErr('$cacheFactory')('iid', "CacheId '{0}' is already taken!", cacheId);
+}
+var size = 0,
+stats = extend({}, options, {id: cacheId}),
+data = {},
+capacity = (options && options.capacity) || Number.MAX_VALUE,
+lruHash = {},
+freshEnd = null,
+staleEnd = null;
+return caches[cacheId] = {
+put: function(key, value) {
+if (capacity < Number.MAX_VALUE) {
+var lruEntry = lruHash[key] || (lruHash[key] = {key: key});
+refresh(lruEntry);
+}
+if (isUndefined(value)) return;
+if (!(key in data)) size++;
+data[key] = value;
+if (size > capacity) {
+this.remove(staleEnd.key);
+}
+return value;
+},
+get: function(key) {
+if (capacity < Number.MAX_VALUE) {
+var lruEntry = lruHash[key];
+if (!lruEntry) return;
+refresh(lruEntry);
+}
+return data[key];
+},
+remove: function(key) {
+if (capacity < Number.MAX_VALUE) {
+var lruEntry = lruHash[key];
+if (!lruEntry) return;
+if (lruEntry == freshEnd) freshEnd = lruEntry.p;
+if (lruEntry == staleEnd) staleEnd = lruEntry.n;
+link(lruEntry.n,lruEntry.p);
+delete lruHash[key];
+}
+delete data[key];
+size--;
+},
+removeAll: function() {
+data = {};
+size = 0;
+lruHash = {};
+freshEnd = staleEnd = null;
+},
+destroy: function() {
+data = null;
+stats = null;
+lruHash = null;
+delete caches[cacheId];
+},
+info: function() {
+return extend({}, stats, {size: size});
+}
+};
+/**
+* makes the `entry` the freshEnd of the LRU linked list
+*/
+function refresh(entry) {
+if (entry != freshEnd) {
+if (!staleEnd) {
+staleEnd = entry;
+} else if (staleEnd == entry) {
+staleEnd = entry.n;
+}
+link(entry.n, entry.p);
+link(entry, freshEnd);
+freshEnd = entry;
+freshEnd.n = null;
+}
+}
+/**
+* bidirectionally links two entries of the LRU linked list
+*/
+function link(nextEntry, prevEntry) {
+if (nextEntry != prevEntry) {
+if (nextEntry) nextEntry.p = prevEntry; //p stands for previous, 'prev' didn't minify
+if (prevEntry) prevEntry.n = nextEntry; //n stands for next, 'next' didn't minify
+}
+}
+}
+/**
+* @ngdoc method
+* @name $cacheFactory#info
+*
+* @description
+* Get information about all the of the caches that have been created
+*
+* @returns {Object} - key-value map of `cacheId` to the result of calling `cache#info`
+*/
+cacheFactory.info = function() {
+var info = {};
+forEach(caches, function(cache, cacheId) {
+info[cacheId] = cache.info();
+});
+return info;
+};
+/**
+* @ngdoc method
+* @name $cacheFactory#get
+*
+* @description
+* Get access to a cache object by the `cacheId` used when it was created.
+*
+* @param {string} cacheId Name or id of a cache to access.
+* @returns {object} Cache object identified by the cacheId or undefined if no such cache.
+*/
+cacheFactory.get = function(cacheId) {
+return caches[cacheId];
+};
+return cacheFactory;
+};
+}
+/**
+* @ngdoc service
+* @name $templateCache
+*
+* @description
+* The first time a template is used, it is loaded in the template cache for quick retrieval. You
+* can load templates directly into the cache in a `script` tag, or by consuming the
+* `$templateCache` service directly.
+*
+* Adding via the `script` tag:
+*
+* ```html
+*   <script type="text/ng-template" id="templateId.html">
+*     <p>This is the content of the template</p>
+*   </script>
+* ```
+*
+* **Note:** the `script` tag containing the template does not need to be included in the `head` of
+* the document, but it must be below the `ng-app` definition.
+*
+* Adding via the $templateCache service:
+*
+* ```js
+* var myApp = angular.module('myApp', []);
+* myApp.run(function($templateCache) {
+*   $templateCache.put('templateId.html', 'This is the content of the template');
+* });
+* ```
+*
+* To retrieve the template later, simply use it in your HTML:
+* ```html
+* <div ng-include=" 'templateId.html' "></div>
+* ```
+*
+* or get it via Javascript:
+* ```js
+* $templateCache.get('templateId.html')
+* ```
+*
+* See {@link ng.$cacheFactory $cacheFactory}.
+*
+*/
+function $TemplateCacheProvider() {
+this.$get = ['$cacheFactory', function($cacheFactory) {
+return $cacheFactory('templates');
+}];
+}
+/* ! VARIABLE/FUNCTION NAMING CONVENTIONS THAT APPLY TO THIS FILE!
+*
+* DOM-related variables:
+*
+* - "node" - DOM Node
+* - "element" - DOM Element or Node
+* - "$node" or "$element" - jqLite-wrapped node or element
+*
+*
+* Compiler related stuff:
+*
+* - "linkFn" - linking fn of a single directive
+* - "nodeLinkFn" - function that aggregates all linking fns for a particular node
+* - "childLinkFn" -  function that aggregates all linking fns for child nodes of a particular node
+* - "compositeLinkFn" - function that aggregates all linking fns for a compilation root (nodeList)
+*/
+/**
+* @ngdoc service
+* @name $compile
+* @function
+*
+* @description
+* Compiles an HTML string or DOM into a template and produces a template function, which
+* can then be used to link {@link ng.$rootScope.Scope `scope`} and the template together.
+*
+* The compilation is a process of walking the DOM tree and matching DOM elements to
+* {@link ng.$compileProvider#directive directives}.
+*
+* <div class="alert alert-warning">
+* **Note:** This document is an in-depth reference of all directive options.
+* For a gentle introduction to directives with examples of common use cases,
+* see the {@link guide/directive directive guide}.
+* </div>
+*
+* ## Comprehensive Directive API
+*
+* There are many different options for a directive.
+*
+* The difference resides in the return value of the factory function.
+* You can either return a "Directive Definition Object" (see below) that defines the directive properties,
+* or just the `postLink` function (all other properties will have the default values).
+*
+* <div class="alert alert-success">
+* **Best Practice:** It's recommended to use the "directive definition object" form.
+* </div>
+*
+* Here's an example directive declared with a Directive Definition Object:
+*
+* ```js
+*   var myModule = angular.module(...);
+*
+*   myModule.directive('directiveName', function factory(injectables) {
+*     var directiveDefinitionObject = {
+*       priority: 0,
+*       template: '<div></div>', // or // function(tElement, tAttrs) { ... },
+*       // or
+*       // templateUrl: 'directive.html', // or // function(tElement, tAttrs) { ... },
+*       replace: false,
+*       transclude: false,
+*       restrict: 'A',
+*       scope: false,
+*       controller: function($scope, $element, $attrs, $transclude, otherInjectables) { ... },
+*       require: 'siblingDirectiveName', // or // ['^parentDirectiveName', '?optionalDirectiveName', '?^optionalParent'],
+*       compile: function compile(tElement, tAttrs, transclude) {
+*         return {
+*           pre: function preLink(scope, iElement, iAttrs, controller) { ... },
+*           post: function postLink(scope, iElement, iAttrs, controller) { ... }
+*         }
+*         // or
+*         // return function postLink( ... ) { ... }
+*       },
+*       // or
+*       // link: {
+*       //  pre: function preLink(scope, iElement, iAttrs, controller) { ... },
+*       //  post: function postLink(scope, iElement, iAttrs, controller) { ... }
+*       // }
+*       // or
+*       // link: function postLink( ... ) { ... }
+*     };
+*     return directiveDefinitionObject;
+*   });
+* ```
+*
+* <div class="alert alert-warning">
+* **Note:** Any unspecified options will use the default value. You can see the default values below.
+* </div>
+*
+* Therefore the above can be simplified as:
+*
+* ```js
+*   var myModule = angular.module(...);
+*
+*   myModule.directive('directiveName', function factory(injectables) {
+*     var directiveDefinitionObject = {
+*       link: function postLink(scope, iElement, iAttrs) { ... }
+*     };
+*     return directiveDefinitionObject;
+*     // or
+*     // return function postLink(scope, iElement, iAttrs) { ... }
+*   });
+* ```
+*
+*
+*
+* ### Directive Definition Object
+*
+* The directive definition object provides instructions to the {@link ng.$compile
+* compiler}. The attributes are:
+*
+* #### `priority`
+* When there are multiple directives defined on a single DOM element, sometimes it
+* is necessary to specify the order in which the directives are applied. The `priority` is used
+* to sort the directives before their `compile` functions get called. Priority is defined as a
+* number. Directives with greater numerical `priority` are compiled first. Pre-link functions
+* are also run in priority order, but post-link functions are run in reverse order. The order
+* of directives with the same priority is undefined. The default priority is `0`.
+*
+* #### `terminal`
+* If set to true then the current `priority` will be the last set of directives
+* which will execute (any directives at the current priority will still execute
+* as the order of execution on same `priority` is undefined).
+*
+* #### `scope`
+* **If set to `true`,** then a new scope will be created for this directive. If multiple directives on the
+* same element request a new scope, only one new scope is created. The new scope rule does not
+* apply for the root of the template since the root of the template always gets a new scope.
+*
+* **If set to `{}` (object hash),** then a new "isolate" scope is created. The 'isolate' scope differs from
+* normal scope in that it does not prototypically inherit from the parent scope. This is useful
+* when creating reusable components, which should not accidentally read or modify data in the
+* parent scope.
+*
+* The 'isolate' scope takes an object hash which defines a set of local scope properties
+* derived from the parent scope. These local properties are useful for aliasing values for
+* templates. Locals definition is a hash of local scope property to its source:
+*
+* * `@` or `@attr` - bind a local scope property to the value of DOM attribute. The result is
+*   always a string since DOM attributes are strings. If no `attr` name is specified  then the
+*   attribute name is assumed to be the same as the local name.
+*   Given `<widget my-attr="hello {{name}}">` and widget definition
+*   of `scope: { localName:'@myAttr' }`, then widget scope property `localName` will reflect
+*   the interpolated value of `hello {{name}}`. As the `name` attribute changes so will the
+*   `localName` property on the widget scope. The `name` is read from the parent scope (not
+*   component scope).
+*
+* * `=` or `=attr` - set up bi-directional binding between a local scope property and the
+*   parent scope property of name defined via the value of the `attr` attribute. If no `attr`
+*   name is specified then the attribute name is assumed to be the same as the local name.
+*   Given `<widget my-attr="parentModel">` and widget definition of
+*   `scope: { localModel:'=myAttr' }`, then widget scope property `localModel` will reflect the
+*   value of `parentModel` on the parent scope. Any changes to `parentModel` will be reflected
+*   in `localModel` and any changes in `localModel` will reflect in `parentModel`. If the parent
+*   scope property doesn't exist, it will throw a NON_ASSIGNABLE_MODEL_EXPRESSION exception. You
+*   can avoid this behavior using `=?` or `=?attr` in order to flag the property as optional.
+*
+* * `&` or `&attr` - provides a way to execute an expression in the context of the parent scope.
+*   If no `attr` name is specified then the attribute name is assumed to be the same as the
+*   local name. Given `<widget my-attr="count = count + value">` and widget definition of
+*   `scope: { localFn:'&myAttr' }`, then isolate scope property `localFn` will point to
+*   a function wrapper for the `count = count + value` expression. Often it's desirable to
+*   pass data from the isolated scope via an expression and to the parent scope, this can be
+*   done by passing a map of local variable names and values into the expression wrapper fn.
+*   For example, if the expression is `increment(amount)` then we can specify the amount value
+*   by calling the `localFn` as `localFn({amount: 22})`.
+*
+*
+*
+* #### `controller`
+* Controller constructor function. The controller is instantiated before the
+* pre-linking phase and it is shared with other directives (see
+* `require` attribute). This allows the directives to communicate with each other and augment
+* each other's behavior. The controller is injectable (and supports bracket notation) with the following locals:
+*
+* * `$scope` - Current scope associated with the element
+* * `$element` - Current element
+* * `$attrs` - Current attributes object for the element
+* * `$transclude` - A transclude linking function pre-bound to the correct transclusion scope.
+*    The scope can be overridden by an optional first argument.
+*   `function([scope], cloneLinkingFn)`.
+*
+*
+* #### `require`
+* Require another directive and inject its controller as the fourth argument to the linking function. The
+* `require` takes a string name (or array of strings) of the directive(s) to pass in. If an array is used, the
+* injected argument will be an array in corresponding order. If no such directive can be
+* found, or if the directive does not have a controller, then an error is raised. The name can be prefixed with:
+*
+* * (no prefix) - Locate the required controller on the current element. Throw an error if not found.
+* * `?` - Attempt to locate the required controller or pass `null` to the `link` fn if not found.
+* * `^` - Locate the required controller by searching the element's parents. Throw an error if not found.
+* * `?^` - Attempt to locate the required controller by searching the element's parents or pass `null` to the
+*   `link` fn if not found.
+*
+*
+* #### `controllerAs`
+* Controller alias at the directive scope. An alias for the controller so it
+* can be referenced at the directive template. The directive needs to define a scope for this
+* configuration to be used. Useful in the case when directive is used as component.
+*
+*
+* #### `restrict`
+* String of subset of `EACM` which restricts the directive to a specific directive
+* declaration style. If omitted, the default (attributes only) is used.
+*
+* * `E` - Element name: `<my-directive></my-directive>`
+* * `A` - Attribute (default): `<div my-directive="exp"></div>`
+* * `C` - Class: `<div class="my-directive: exp;"></div>`
+* * `M` - Comment: `<!-- directive: my-directive exp -->`
+*
+*
+* #### `template`
+* replace the current element with the contents of the HTML. The replacement process
+* migrates all of the attributes / classes from the old element to the new one. See the
+* {@link guide/directive#creating-custom-directives_creating-directives_template-expanding-directive
+* Directives Guide} for an example.
+*
+* You can specify `template` as a string representing the template or as a function which takes
+* two arguments `tElement` and `tAttrs` (described in the `compile` function api below) and
+* returns a string value representing the template.
+*
+*
+* #### `templateUrl`
+* Same as `template` but the template is loaded from the specified URL. Because
+* the template loading is asynchronous the compilation/linking is suspended until the template
+* is loaded.
+*
+* You can specify `templateUrl` as a string representing the URL or as a function which takes two
+* arguments `tElement` and `tAttrs` (described in the `compile` function api below) and returns
+* a string value representing the url.  In either case, the template URL is passed through {@link
+* api/ng.$sce#getTrustedResourceUrl $sce.getTrustedResourceUrl}.
+*
+*
+* #### `replace`
+* specify where the template should be inserted. Defaults to `false`.
+*
+* * `true` - the template will replace the current element.
+* * `false` - the template will replace the contents of the current element.
+*
+*
+* #### `transclude`
+* compile the content of the element and make it available to the directive.
+* Typically used with {@link ng.directive:ngTransclude
+* ngTransclude}. The advantage of transclusion is that the linking function receives a
+* transclusion function which is pre-bound to the correct scope. In a typical setup the widget
+* creates an `isolate` scope, but the transclusion is not a child, but a sibling of the `isolate`
+* scope. This makes it possible for the widget to have private state, and the transclusion to
+* be bound to the parent (pre-`isolate`) scope.
+*
+* * `true` - transclude the content of the directive.
+* * `'element'` - transclude the whole element including any directives defined at lower priority.
+*
+*
+* #### `compile`
+*
+* ```js
+*   function compile(tElement, tAttrs, transclude) { ... }
+* ```
+*
+* The compile function deals with transforming the template DOM. Since most directives do not do
+* template transformation, it is not used often. Examples that require compile functions are
+* directives that transform template DOM, such as {@link
+* api/ng.directive:ngRepeat ngRepeat}, or load the contents
+* asynchronously, such as {@link ngRoute.directive:ngView ngView}. The
+* compile function takes the following arguments.
+*
+*   * `tElement` - template element - The element where the directive has been declared. It is
+*     safe to do template transformation on the element and child elements only.
+*
+*   * `tAttrs` - template attributes - Normalized list of attributes declared on this element shared
+*     between all directive compile functions.
+*
+*   * `transclude` -  [*DEPRECATED*!] A transclude linking function: `function(scope, cloneLinkingFn)`
+*
+* <div class="alert alert-warning">
+* **Note:** The template instance and the link instance may be different objects if the template has
+* been cloned. For this reason it is **not** safe to do anything other than DOM transformations that
+* apply to all cloned DOM nodes within the compile function. Specifically, DOM listener registration
+* should be done in a linking function rather than in a compile function.
+* </div>
+*
+* <div class="alert alert-error">
+* **Note:** The `transclude` function that is passed to the compile function is deprecated, as it
+*   e.g. does not know about the right outer scope. Please use the transclude function that is passed
+*   to the link function instead.
+* </div>
+* A compile function can have a return value which can be either a function or an object.
+*
+* * returning a (post-link) function - is equivalent to registering the linking function via the
+*   `link` property of the config object when the compile function is empty.
+*
+* * returning an object with function(s) registered via `pre` and `post` properties - allows you to
+*   control when a linking function should be called during the linking phase. See info about
+*   pre-linking and post-linking functions below.
+*
+*
+* #### `link`
+* This property is used only if the `compile` property is not defined.
+*
+* ```js
+*   function link(scope, iElement, iAttrs, controller, transcludeFn) { ... }
+* ```
+*
+* The link function is responsible for registering DOM listeners as well as updating the DOM. It is
+* executed after the template has been cloned. This is where most of the directive logic will be
+* put.
+*
+*   * `scope` - {@link ng.$rootScope.Scope Scope} - The scope to be used by the
+*     directive for registering {@link ng.$rootScope.Scope#$watch watches}.
+*
+*   * `iElement` - instance element - The element where the directive is to be used. It is safe to
+*     manipulate the children of the element only in `postLink` function since the children have
+*     already been linked.
+*
+*   * `iAttrs` - instance attributes - Normalized list of attributes declared on this element shared
+*     between all directive linking functions.
+*
+*   * `controller` - a controller instance - A controller instance if at least one directive on the
+*     element defines a controller. The controller is shared among all the directives, which allows
+*     the directives to use the controllers as a communication channel.
+*
+*   * `transcludeFn` - A transclude linking function pre-bound to the correct transclusion scope.
+*     The scope can be overridden by an optional first argument. This is the same as the `$transclude`
+*     parameter of directive controllers.
+*     `function([scope], cloneLinkingFn)`.
+*
+*
+* #### Pre-linking function
+*
+* Executed before the child elements are linked. Not safe to do DOM transformation since the
+* compiler linking function will fail to locate the correct elements for linking.
+*
+* #### Post-linking function
+*
+* Executed after the child elements are linked. It is safe to do DOM transformation in the post-linking function.
+*
+* <a name="Attributes"></a>
+* ### Attributes
+*
+* The {@link ng.$compile.directive.Attributes Attributes} object - passed as a parameter in the
+* `link()` or `compile()` functions. It has a variety of uses.
+*
+* accessing *Normalized attribute names:*
+* Directives like 'ngBind' can be expressed in many ways: 'ng:bind', `data-ng-bind`, or 'x-ng-bind'.
+* the attributes object allows for normalized access to
+*   the attributes.
+*
+* * *Directive inter-communication:* All directives share the same instance of the attributes
+*   object which allows the directives to use the attributes object as inter directive
+*   communication.
+*
+* * *Supports interpolation:* Interpolation attributes are assigned to the attribute object
+*   allowing other directives to read the interpolated value.
+*
+* * *Observing interpolated attributes:* Use `$observe` to observe the value changes of attributes
+*   that contain interpolation (e.g. `src="{{bar}}"`). Not only is this very efficient but it's also
+*   the only way to easily get the actual value because during the linking phase the interpolation
+*   hasn't been evaluated yet and so the value is at this time set to `undefined`.
+*
+* ```js
+* function linkingFn(scope, elm, attrs, ctrl) {
+*   // get the attribute value
+*   console.log(attrs.ngModel);
+*
+*   // change the attribute
+*   attrs.$set('ngModel', 'new value');
+*
+*   // observe changes to interpolated attribute
+*   attrs.$observe('ngModel', function(value) {
+*     console.log('ngModel has changed value to ' + value);
+*   });
+* }
+* ```
+*
+* Below is an example using `$compileProvider`.
+*
+* <div class="alert alert-warning">
+* **Note**: Typically directives are registered with `module.directive`. The example below is
+* to illustrate how `$compile` works.
+* </div>
+*
+<example module="compile">
+<file name="index.html">
+<script>
+angular.module('compile', [], function($compileProvider) {
+// configure new 'compile' directive by passing a directive
+// factory function. The factory function injects the '$compile'
+$compileProvider.directive('compile', function($compile) {
+// directive factory creates a link function
+return function(scope, element, attrs) {
+scope.$watch(
+function(scope) {
+// watch the 'compile' expression for changes
+return scope.$eval(attrs.compile);
+},
+function(value) {
+// when the 'compile' expression changes
+// assign it into the current DOM
+element.html(value);
+// compile the new DOM and link it to the current
+// scope.
+// NOTE: we only compile .childNodes so that
+// we don't get into infinite loop compiling ourselves
+$compile(element.contents())(scope);
+}
+);
+};
+})
+});
+function Ctrl($scope) {
+$scope.name = 'Angular';
+$scope.html = 'Hello {{name}}';
+}
+</script>
+<div ng-controller="Ctrl">
+<input ng-model="name"> <br>
+<textarea ng-model="html"></textarea> <br>
+<div compile="html"></div>
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should auto compile', function() {
+var textarea = $('textarea');
+var output = $('div[compile]');
+// The initial state reads 'Hello Angular'.
+expect(output.getText()).toBe('Hello Angular');
+textarea.clear();
+textarea.sendKeys('{{name}}!');
+expect(output.getText()).toBe('Angular!');
+});
+</file>
+</example>
+*
+*
+* @param {string|DOMElement} element Element or HTML string to compile into a template function.
+* @param {function(angular.Scope, cloneAttachFn=)} transclude function available to directives.
+* @param {number} maxPriority only apply directives lower than given priority (Only effects the
+*                 root element(s), not their children)
+* @returns {function(scope, cloneAttachFn=)} a link function which is used to bind template
+* (a DOM element/tree) to a scope. Where:
+*
+*  * `scope` - A {@link ng.$rootScope.Scope Scope} to bind to.
+*  * `cloneAttachFn` - If `cloneAttachFn` is provided, then the link function will clone the
+*  `template` and call the `cloneAttachFn` function allowing the caller to attach the
+*  cloned elements to the DOM document at the appropriate place. The `cloneAttachFn` is
+*  called as: <br> `cloneAttachFn(clonedElement, scope)` where:
+*
+*      * `clonedElement` - is a clone of the original `element` passed into the compiler.
+*      * `scope` - is the current scope with which the linking function is working with.
+*
+* Calling the linking function returns the element of the template. It is either the original
+* element passed in, or the clone of the element if the `cloneAttachFn` is provided.
+*
+* After linking the view is not updated until after a call to $digest which typically is done by
+* Angular automatically.
+*
+* If you need access to the bound view, there are two ways to do it:
+*
+* - If you are not asking the linking function to clone the template, create the DOM element(s)
+*   before you send them to the compiler and keep this reference around.
+*   ```js
+*     var element = $compile('<p>{{total}}</p>')(scope);
+*   ```
+*
+* - if on the other hand, you need the element to be cloned, the view reference from the original
+*   example would not point to the clone, but rather to the original template that was cloned. In
+*   this case, you can access the clone via the cloneAttachFn:
+*   ```js
+*     var templateElement = angular.element('<p>{{total}}</p>'),
+*         scope = ....;
+*
+*     var clonedElement = $compile(templateElement)(scope, function(clonedElement, scope) {
+*       //attach the clone to DOM document at the right place
+*     });
+*
+*     //now we have reference to the cloned DOM via `clonedElement`
+*   ```
+*
+*
+* For information on how the compiler works, see the
+* {@link guide/compiler Angular HTML Compiler} section of the Developer Guide.
+*/
+var $compileMinErr = minErr('$compile');
+/**
+* @ngdoc provider
+* @name $compileProvider
+* @function
+*
+* @description
+*/
+$CompileProvider.$inject = ['$provide', '$$sanitizeUriProvider'];
+function $CompileProvider($provide, $$sanitizeUriProvider) {
+var hasDirectives = {},
+Suffix = 'Directive',
+COMMENT_DIRECTIVE_REGEXP = /^\s*directive\:\s*([\d\w\-_]+)\s+(.*)$/,
+CLASS_DIRECTIVE_REGEXP = /(([\d\w\-_]+)(?:\:([^;]+))?;?)/,
+TABLE_CONTENT_REGEXP = /^<\s*(tr|th|td|thead|tbody|tfoot)(\s+[^>]*)?>/i;
+// Ref: http://developers.whatwg.org/webappapis.html#event-handler-idl-attributes
+// The assumption is that future DOM event attribute names will begin with
+// 'on' and be composed of only English letters.
+var EVENT_HANDLER_ATTR_REGEXP = /^(on[a-z]+|formaction)$/;
+/**
+* @ngdoc method
+* @name $compileProvider#directive
+* @function
+*
+* @description
+* Register a new directive with the compiler.
+*
+* @param {string|Object} name Name of the directive in camel-case (i.e. <code>ngBind</code> which
+*    will match as <code>ng-bind</code>), or an object map of directives where the keys are the
+*    names and the values are the factories.
+* @param {Function|Array} directiveFactory An injectable directive factory function. See
+*    {@link guide/directive} for more info.
+* @returns {ng.$compileProvider} Self for chaining.
+*/
+this.directive = function registerDirective(name, directiveFactory) {
+assertNotHasOwnProperty(name, 'directive');
+if (isString(name)) {
+assertArg(directiveFactory, 'directiveFactory');
+if (!hasDirectives.hasOwnProperty(name)) {
+hasDirectives[name] = [];
+$provide.factory(name + Suffix, ['$injector', '$exceptionHandler',
+function($injector, $exceptionHandler) {
+var directives = [];
+forEach(hasDirectives[name], function(directiveFactory, index) {
+try {
+var directive = $injector.invoke(directiveFactory);
+if (isFunction(directive)) {
+directive = { compile: valueFn(directive) };
+} else if (!directive.compile && directive.link) {
+directive.compile = valueFn(directive.link);
+}
+directive.priority = directive.priority || 0;
+directive.index = index;
+directive.name = directive.name || name;
+directive.require = directive.require || (directive.controller && directive.name);
+directive.restrict = directive.restrict || 'A';
+directives.push(directive);
+} catch (e) {
+$exceptionHandler(e);
+}
+});
+return directives;
+}]);
+}
+hasDirectives[name].push(directiveFactory);
+} else {
+forEach(name, reverseParams(registerDirective));
+}
+return this;
+};
+/**
+* @ngdoc method
+* @name $compileProvider#aHrefSanitizationWhitelist
+* @function
+*
+* @description
+* Retrieves or overrides the default regular expression that is used for whitelisting of safe
+* urls during a[href] sanitization.
+*
+* The sanitization is a security measure aimed at prevent XSS attacks via html links.
+*
+* Any url about to be assigned to a[href] via data-binding is first normalized and turned into
+* an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`
+* regular expression. If a match is found, the original url is written into the dom. Otherwise,
+* the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.
+*
+* @param {RegExp=} regexp New regexp to whitelist urls with.
+* @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for
+*    chaining otherwise.
+*/
+this.aHrefSanitizationWhitelist = function(regexp) {
+if (isDefined(regexp)) {
+$$sanitizeUriProvider.aHrefSanitizationWhitelist(regexp);
+return this;
+} else {
+return $$sanitizeUriProvider.aHrefSanitizationWhitelist();
+}
+};
+/**
+* @ngdoc method
+* @name $compileProvider#imgSrcSanitizationWhitelist
+* @function
+*
+* @description
+* Retrieves or overrides the default regular expression that is used for whitelisting of safe
+* urls during img[src] sanitization.
+*
+* The sanitization is a security measure aimed at prevent XSS attacks via html links.
+*
+* Any url about to be assigned to img[src] via data-binding is first normalized and turned into
+* an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`
+* regular expression. If a match is found, the original url is written into the dom. Otherwise,
+* the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.
+*
+* @param {RegExp=} regexp New regexp to whitelist urls with.
+* @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for
+*    chaining otherwise.
+*/
+this.imgSrcSanitizationWhitelist = function(regexp) {
+if (isDefined(regexp)) {
+$$sanitizeUriProvider.imgSrcSanitizationWhitelist(regexp);
+return this;
+} else {
+return $$sanitizeUriProvider.imgSrcSanitizationWhitelist();
+}
+};
+this.$get = [
+'$injector', '$interpolate', '$exceptionHandler', '$http', '$templateCache', '$parse',
+'$controller', '$rootScope', '$document', '$sce', '$animate', '$$sanitizeUri',
+function($injector,   $interpolate,   $exceptionHandler,   $http,   $templateCache,   $parse,
+$controller,   $rootScope,   $document,   $sce,   $animate,   $$sanitizeUri) {
+var Attributes = function(element, attr) {
+this.$$element = element;
+this.$attr = attr || {};
+};
+Attributes.prototype = {
+$normalize: directiveNormalize,
+/**
+* @ngdoc method
+* @name $compile.directive.Attributes#$addClass
+* @function
+*
+* @description
+* Adds the CSS class value specified by the classVal parameter to the element. If animations
+* are enabled then an animation will be triggered for the class addition.
+*
+* @param {string} classVal The className value that will be added to the element
+*/
+$addClass : function(classVal) {
+if(classVal && classVal.length > 0) {
+$animate.addClass(this.$$element, classVal);
+}
+},
+/**
+* @ngdoc method
+* @name $compile.directive.Attributes#$removeClass
+* @function
+*
+* @description
+* Removes the CSS class value specified by the classVal parameter from the element. If
+* animations are enabled then an animation will be triggered for the class removal.
+*
+* @param {string} classVal The className value that will be removed from the element
+*/
+$removeClass : function(classVal) {
+if(classVal && classVal.length > 0) {
+$animate.removeClass(this.$$element, classVal);
+}
+},
+/**
+* @ngdoc method
+* @name $compile.directive.Attributes#$updateClass
+* @function
+*
+* @description
+* Adds and removes the appropriate CSS class values to the element based on the difference
+* between the new and old CSS class values (specified as newClasses and oldClasses).
+*
+* @param {string} newClasses The current CSS className value
+* @param {string} oldClasses The former CSS className value
+*/
+$updateClass : function(newClasses, oldClasses) {
+var toAdd = tokenDifference(newClasses, oldClasses);
+var toRemove = tokenDifference(oldClasses, newClasses);
+if(toAdd.length === 0) {
+$animate.removeClass(this.$$element, toRemove);
+} else if(toRemove.length === 0) {
+$animate.addClass(this.$$element, toAdd);
+} else {
+$animate.setClass(this.$$element, toAdd, toRemove);
+}
+},
+/**
+* Set a normalized attribute on the element in a way such that all directives
+* can share the attribute. This function properly handles boolean attributes.
+* @param {string} key Normalized key. (ie ngAttribute)
+* @param {string|boolean} value The value to set. If `null` attribute will be deleted.
+* @param {boolean=} writeAttr If false, does not write the value to DOM element attribute.
+*     Defaults to true.
+* @param {string=} attrName Optional none normalized name. Defaults to key.
+*/
+$set: function(key, value, writeAttr, attrName) {
+// TODO: decide whether or not to throw an error if "class"
+//is set through this function since it may cause $updateClass to
+//become unstable.
+var booleanKey = getBooleanAttrName(this.$$element[0], key),
+normalizedVal,
+nodeName;
+if (booleanKey) {
+this.$$element.prop(key, value);
+attrName = booleanKey;
+}
+this[key] = value;
+// translate normalized key to actual key
+if (attrName) {
+this.$attr[key] = attrName;
+} else {
+attrName = this.$attr[key];
+if (!attrName) {
+this.$attr[key] = attrName = snake_case(key, '-');
+}
+}
+nodeName = nodeName_(this.$$element);
+// sanitize a[href] and img[src] values
+if ((nodeName === 'A' && key === 'href') ||
+(nodeName === 'IMG' && key === 'src')) {
+this[key] = value = $$sanitizeUri(value, key === 'src');
+}
+if (writeAttr !== false) {
+if (value === null || value === undefined) {
+this.$$element.removeAttr(attrName);
+} else {
+this.$$element.attr(attrName, value);
+}
+}
+// fire observers
+var $$observers = this.$$observers;
+$$observers && forEach($$observers[key], function(fn) {
+try {
+fn(value);
+} catch (e) {
+$exceptionHandler(e);
+}
+});
+},
+/**
+* @ngdoc method
+* @name $compile.directive.Attributes#$observe
+* @function
+*
+* @description
+* Observes an interpolated attribute.
+*
+* The observer function will be invoked once during the next `$digest` following
+* compilation. The observer is then invoked whenever the interpolated value
+* changes.
+*
+* @param {string} key Normalized key. (ie ngAttribute) .
+* @param {function(interpolatedValue)} fn Function that will be called whenever
+the interpolated value of the attribute changes.
+*        See the {@link guide/directive#Attributes Directives} guide for more info.
+* @returns {function()} the `fn` parameter.
+*/
+$observe: function(key, fn) {
+var attrs = this,
+$$observers = (attrs.$$observers || (attrs.$$observers = {})),
+listeners = ($$observers[key] || ($$observers[key] = []));
+listeners.push(fn);
+$rootScope.$evalAsync(function() {
+if (!listeners.$$inter) {
+// no one registered attribute interpolation function, so lets call it manually
+fn(attrs[key]);
+}
+});
+return fn;
+}
+};
+var startSymbol = $interpolate.startSymbol(),
+endSymbol = $interpolate.endSymbol(),
+denormalizeTemplate = (startSymbol == '{{' || endSymbol  == '}}')
+? identity
+: function denormalizeTemplate(template) {
+return template.replace(/\{\{/g, startSymbol).replace(/}}/g, endSymbol);
+},
+NG_ATTR_BINDING = /^ngAttr[A-Z]/;
+return compile;
+//================================
+function compile($compileNodes, transcludeFn, maxPriority, ignoreDirective,
+previousCompileContext) {
+if (!($compileNodes instanceof jqLite)) {
+// jquery always rewraps, whereas we need to preserve the original selector so that we can
+// modify it.
+$compileNodes = jqLite($compileNodes);
+}
+// We can not compile top level text elements since text nodes can be merged and we will
+// not be able to attach scope data to them, so we will wrap them in <span>
+forEach($compileNodes, function(node, index){
+if (node.nodeType == 3 /* text node */ && node.nodeValue.match(/\S+/) /* non-empty */ ) {
+$compileNodes[index] = node = jqLite(node).wrap('<span></span>').parent()[0];
+}
+});
+var compositeLinkFn =
+compileNodes($compileNodes, transcludeFn, $compileNodes,
+maxPriority, ignoreDirective, previousCompileContext);
+safeAddClass($compileNodes, 'ng-scope');
+return function publicLinkFn(scope, cloneConnectFn, transcludeControllers){
+assertArg(scope, 'scope');
+// important!!: we must call our jqLite.clone() since the jQuery one is trying to be smart
+// and sometimes changes the structure of the DOM.
+var $linkNode = cloneConnectFn
+? JQLitePrototype.clone.call($compileNodes) // IMPORTANT!!!
+: $compileNodes;
+forEach(transcludeControllers, function(instance, name) {
+$linkNode.data('$' + name + 'Controller', instance);
+});
+// Attach scope only to non-text nodes.
+for(var i = 0, ii = $linkNode.length; i<ii; i++) {
+var node = $linkNode[i],
+nodeType = node.nodeType;
+if (nodeType === 1 /* element */ || nodeType === 9 /* document */) {
+$linkNode.eq(i).data('$scope', scope);
+}
+}
+if (cloneConnectFn) cloneConnectFn($linkNode, scope);
+if (compositeLinkFn) compositeLinkFn(scope, $linkNode, $linkNode);
+return $linkNode;
+};
+}
+function safeAddClass($element, className) {
+try {
+$element.addClass(className);
+} catch(e) {
+// ignore, since it means that we are trying to set class on
+// SVG element, where class name is read-only.
+}
+}
+/**
+* Compile function matches each node in nodeList against the directives. Once all directives
+* for a particular node are collected their compile functions are executed. The compile
+* functions return values - the linking functions - are combined into a composite linking
+* function, which is the a linking function for the node.
+*
+* @param {NodeList} nodeList an array of nodes or NodeList to compile
+* @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the
+*        scope argument is auto-generated to the new child of the transcluded parent scope.
+* @param {DOMElement=} $rootElement If the nodeList is the root of the compilation tree then
+*        the rootElement must be set the jqLite collection of the compile root. This is
+*        needed so that the jqLite collection items can be replaced with widgets.
+* @param {number=} maxPriority Max directive priority.
+* @returns {Function} A composite linking function of all of the matched directives or null.
+*/
+function compileNodes(nodeList, transcludeFn, $rootElement, maxPriority, ignoreDirective,
+previousCompileContext) {
+var linkFns = [],
+attrs, directives, nodeLinkFn, childNodes, childLinkFn, linkFnFound;
+for (var i = 0; i < nodeList.length; i++) {
+attrs = new Attributes();
+// we must always refer to nodeList[i] since the nodes can be replaced underneath us.
+directives = collectDirectives(nodeList[i], [], attrs, i === 0 ? maxPriority : undefined,
+ignoreDirective);
+nodeLinkFn = (directives.length)
+? applyDirectivesToNode(directives, nodeList[i], attrs, transcludeFn, $rootElement,
+null, [], [], previousCompileContext)
+: null;
+if (nodeLinkFn && nodeLinkFn.scope) {
+safeAddClass(jqLite(nodeList[i]), 'ng-scope');
+}
+childLinkFn = (nodeLinkFn && nodeLinkFn.terminal ||
+!(childNodes = nodeList[i].childNodes) ||
+!childNodes.length)
+? null
+: compileNodes(childNodes,
+nodeLinkFn ? nodeLinkFn.transclude : transcludeFn);
+linkFns.push(nodeLinkFn, childLinkFn);
+linkFnFound = linkFnFound || nodeLinkFn || childLinkFn;
+//use the previous context only for the first element in the virtual group
+previousCompileContext = null;
+}
+// return a linking function if we have found anything, null otherwise
+return linkFnFound ? compositeLinkFn : null;
+function compositeLinkFn(scope, nodeList, $rootElement, boundTranscludeFn) {
+var nodeLinkFn, childLinkFn, node, $node, childScope, childTranscludeFn, i, ii, n;
+// copy nodeList so that linking doesn't break due to live list updates.
+var nodeListLength = nodeList.length,
+stableNodeList = new Array(nodeListLength);
+for (i = 0; i < nodeListLength; i++) {
+stableNodeList[i] = nodeList[i];
+}
+for(i = 0, n = 0, ii = linkFns.length; i < ii; n++) {
+node = stableNodeList[n];
+nodeLinkFn = linkFns[i++];
+childLinkFn = linkFns[i++];
+$node = jqLite(node);
+if (nodeLinkFn) {
+if (nodeLinkFn.scope) {
+childScope = scope.$new();
+$node.data('$scope', childScope);
+} else {
+childScope = scope;
+}
+childTranscludeFn = nodeLinkFn.transclude;
+if (childTranscludeFn || (!boundTranscludeFn && transcludeFn)) {
+nodeLinkFn(childLinkFn, childScope, node, $rootElement,
+createBoundTranscludeFn(scope, childTranscludeFn || transcludeFn)
+);
+} else {
+nodeLinkFn(childLinkFn, childScope, node, $rootElement, boundTranscludeFn);
+}
+} else if (childLinkFn) {
+childLinkFn(scope, node.childNodes, undefined, boundTranscludeFn);
+}
+}
+}
+}
+function createBoundTranscludeFn(scope, transcludeFn) {
+return function boundTranscludeFn(transcludedScope, cloneFn, controllers) {
+var scopeCreated = false;
+if (!transcludedScope) {
+transcludedScope = scope.$new();
+transcludedScope.$$transcluded = true;
+scopeCreated = true;
+}
+var clone = transcludeFn(transcludedScope, cloneFn, controllers);
+if (scopeCreated) {
+clone.on('$destroy', bind(transcludedScope, transcludedScope.$destroy));
+}
+return clone;
+};
+}
+/**
+* Looks for directives on the given node and adds them to the directive collection which is
+* sorted.
+*
+* @param node Node to search.
+* @param directives An array to which the directives are added to. This array is sorted before
+*        the function returns.
+* @param attrs The shared attrs object which is used to populate the normalized attributes.
+* @param {number=} maxPriority Max directive priority.
+*/
+function collectDirectives(node, directives, attrs, maxPriority, ignoreDirective) {
+var nodeType = node.nodeType,
+attrsMap = attrs.$attr,
+match,
+className;
+switch(nodeType) {
+case 1: /* Element */
+// use the node name: <directive>
+addDirective(directives,
+directiveNormalize(nodeName_(node).toLowerCase()), 'E', maxPriority, ignoreDirective);
+// iterate over the attributes
+for (var attr, name, nName, ngAttrName, value, nAttrs = node.attributes,
+j = 0, jj = nAttrs && nAttrs.length; j < jj; j++) {
+var attrStartName = false;
+var attrEndName = false;
+attr = nAttrs[j];
+if (!msie || msie >= 8 || attr.specified) {
+name = attr.name;
+// support ngAttr attribute binding
+ngAttrName = directiveNormalize(name);
+if (NG_ATTR_BINDING.test(ngAttrName)) {
+name = snake_case(ngAttrName.substr(6), '-');
+}
+var directiveNName = ngAttrName.replace(/(Start|End)$/, '');
+if (ngAttrName === directiveNName + 'Start') {
+attrStartName = name;
+attrEndName = name.substr(0, name.length - 5) + 'end';
+name = name.substr(0, name.length - 6);
+}
+nName = directiveNormalize(name.toLowerCase());
+attrsMap[nName] = name;
+attrs[nName] = value = trim(attr.value);
+if (getBooleanAttrName(node, nName)) {
+attrs[nName] = true; // presence means true
+}
+addAttrInterpolateDirective(node, directives, value, nName);
+addDirective(directives, nName, 'A', maxPriority, ignoreDirective, attrStartName,
+attrEndName);
+}
+}
+// use class as directive
+className = node.className;
+if (isString(className) && className !== '') {
+while (match = CLASS_DIRECTIVE_REGEXP.exec(className)) {
+nName = directiveNormalize(match[2]);
+if (addDirective(directives, nName, 'C', maxPriority, ignoreDirective)) {
+attrs[nName] = trim(match[3]);
+}
+className = className.substr(match.index + match[0].length);
+}
+}
+break;
+case 3: /* Text Node */
+addTextInterpolateDirective(directives, node.nodeValue);
+break;
+case 8: /* Comment */
+try {
+match = COMMENT_DIRECTIVE_REGEXP.exec(node.nodeValue);
+if (match) {
+nName = directiveNormalize(match[1]);
+if (addDirective(directives, nName, 'M', maxPriority, ignoreDirective)) {
+attrs[nName] = trim(match[2]);
+}
+}
+} catch (e) {
+// turns out that under some circumstances IE9 throws errors when one attempts to read
+// comment's node value.
+// Just ignore it and continue. (Can't seem to reproduce in test case.)
+}
+break;
+}
+directives.sort(byPriority);
+return directives;
+}
+/**
+* Given a node with an directive-start it collects all of the siblings until it finds
+* directive-end.
+* @param node
+* @param attrStart
+* @param attrEnd
+* @returns {*}
+*/
+function groupScan(node, attrStart, attrEnd) {
+var nodes = [];
+var depth = 0;
+if (attrStart && node.hasAttribute && node.hasAttribute(attrStart)) {
+var startNode = node;
+do {
+if (!node) {
+throw $compileMinErr('uterdir',
+"Unterminated attribute, found '{0}' but no matching '{1}' found.",
+attrStart, attrEnd);
+}
+if (node.nodeType == 1 /** Element **/) {
+if (node.hasAttribute(attrStart)) depth++;
+if (node.hasAttribute(attrEnd)) depth--;
+}
+nodes.push(node);
+node = node.nextSibling;
+} while (depth > 0);
+} else {
+nodes.push(node);
+}
+return jqLite(nodes);
+}
+/**
+* Wrapper for linking function which converts normal linking function into a grouped
+* linking function.
+* @param linkFn
+* @param attrStart
+* @param attrEnd
+* @returns {Function}
+*/
+function groupElementsLinkFnWrapper(linkFn, attrStart, attrEnd) {
+return function(scope, element, attrs, controllers, transcludeFn) {
+element = groupScan(element[0], attrStart, attrEnd);
+return linkFn(scope, element, attrs, controllers, transcludeFn);
+};
+}
+/**
+* Once the directives have been collected, their compile functions are executed. This method
+* is responsible for inlining directive templates as well as terminating the application
+* of the directives if the terminal directive has been reached.
+*
+* @param {Array} directives Array of collected directives to execute their compile function.
+*        this needs to be pre-sorted by priority order.
+* @param {Node} compileNode The raw DOM node to apply the compile functions to
+* @param {Object} templateAttrs The shared attribute function
+* @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the
+*                                                  scope argument is auto-generated to the new
+*                                                  child of the transcluded parent scope.
+* @param {JQLite} jqCollection If we are working on the root of the compile tree then this
+*                              argument has the root jqLite array so that we can replace nodes
+*                              on it.
+* @param {Object=} originalReplaceDirective An optional directive that will be ignored when
+*                                           compiling the transclusion.
+* @param {Array.<Function>} preLinkFns
+* @param {Array.<Function>} postLinkFns
+* @param {Object} previousCompileContext Context used for previous compilation of the current
+*                                        node
+* @returns {Function} linkFn
+*/
+function applyDirectivesToNode(directives, compileNode, templateAttrs, transcludeFn,
+jqCollection, originalReplaceDirective, preLinkFns, postLinkFns,
+previousCompileContext) {
+previousCompileContext = previousCompileContext || {};
+var terminalPriority = -Number.MAX_VALUE,
+newScopeDirective,
+controllerDirectives = previousCompileContext.controllerDirectives,
+newIsolateScopeDirective = previousCompileContext.newIsolateScopeDirective,
+templateDirective = previousCompileContext.templateDirective,
+nonTlbTranscludeDirective = previousCompileContext.nonTlbTranscludeDirective,
+hasTranscludeDirective = false,
+hasElementTranscludeDirective = previousCompileContext.hasElementTranscludeDirective,
+$compileNode = templateAttrs.$$element = jqLite(compileNode),
+directive,
+directiveName,
+$template,
+replaceDirective = originalReplaceDirective,
+childTranscludeFn = transcludeFn,
+linkFn,
+directiveValue;
+// executes all directives on the current element
+for(var i = 0, ii = directives.length; i < ii; i++) {
+directive = directives[i];
+var attrStart = directive.$$start;
+var attrEnd = directive.$$end;
+// collect multiblock sections
+if (attrStart) {
+$compileNode = groupScan(compileNode, attrStart, attrEnd);
+}
+$template = undefined;
+if (terminalPriority > directive.priority) {
+break; // prevent further processing of directives
+}
+if (directiveValue = directive.scope) {
+newScopeDirective = newScopeDirective || directive;
+// skip the check for directives with async templates, we'll check the derived sync
+// directive when the template arrives
+if (!directive.templateUrl) {
+assertNoDuplicate('new/isolated scope', newIsolateScopeDirective, directive,
+$compileNode);
+if (isObject(directiveValue)) {
+newIsolateScopeDirective = directive;
+}
+}
+}
+directiveName = directive.name;
+if (!directive.templateUrl && directive.controller) {
+directiveValue = directive.controller;
+controllerDirectives = controllerDirectives || {};
+assertNoDuplicate("'" + directiveName + "' controller",
+controllerDirectives[directiveName], directive, $compileNode);
+controllerDirectives[directiveName] = directive;
+}
+if (directiveValue = directive.transclude) {
+hasTranscludeDirective = true;
+// Special case ngIf and ngRepeat so that we don't complain about duplicate transclusion.
+// This option should only be used by directives that know how to safely handle element transclusion,
+// where the transcluded nodes are added or replaced after linking.
+if (!directive.$$tlb) {
+assertNoDuplicate('transclusion', nonTlbTranscludeDirective, directive, $compileNode);
+nonTlbTranscludeDirective = directive;
+}
+if (directiveValue == 'element') {
+hasElementTranscludeDirective = true;
+terminalPriority = directive.priority;
+$template = groupScan(compileNode, attrStart, attrEnd);
+$compileNode = templateAttrs.$$element =
+jqLite(document.createComment(' ' + directiveName + ': ' +
+templateAttrs[directiveName] + ' '));
+compileNode = $compileNode[0];
+replaceWith(jqCollection, jqLite(sliceArgs($template)), compileNode);
+childTranscludeFn = compile($template, transcludeFn, terminalPriority,
+replaceDirective && replaceDirective.name, {
+// Don't pass in:
+// - controllerDirectives - otherwise we'll create duplicates controllers
+// - newIsolateScopeDirective or templateDirective - combining templates with
+//   element transclusion doesn't make sense.
+//
+// We need only nonTlbTranscludeDirective so that we prevent putting transclusion
+// on the same element more than once.
+nonTlbTranscludeDirective: nonTlbTranscludeDirective
+});
+} else {
+$template = jqLite(jqLiteClone(compileNode)).contents();
+$compileNode.empty(); // clear contents
+childTranscludeFn = compile($template, transcludeFn);
+}
+}
+if (directive.template) {
+assertNoDuplicate('template', templateDirective, directive, $compileNode);
+templateDirective = directive;
+directiveValue = (isFunction(directive.template))
+? directive.template($compileNode, templateAttrs)
+: directive.template;
+directiveValue = denormalizeTemplate(directiveValue);
+if (directive.replace) {
+replaceDirective = directive;
+$template = directiveTemplateContents(directiveValue);
+compileNode = $template[0];
+if ($template.length != 1 || compileNode.nodeType !== 1) {
+throw $compileMinErr('tplrt',
+"Template for directive '{0}' must have exactly one root element. {1}",
+directiveName, '');
+}
+replaceWith(jqCollection, $compileNode, compileNode);
+var newTemplateAttrs = {$attr: {}};
+// combine directives from the original node and from the template:
+// - take the array of directives for this element
+// - split it into two parts, those that already applied (processed) and those that weren't (unprocessed)
+// - collect directives from the template and sort them by priority
+// - combine directives as: processed + template + unprocessed
+var templateDirectives = collectDirectives(compileNode, [], newTemplateAttrs);
+var unprocessedDirectives = directives.splice(i + 1, directives.length - (i + 1));
+if (newIsolateScopeDirective) {
+markDirectivesAsIsolate(templateDirectives);
+}
+directives = directives.concat(templateDirectives).concat(unprocessedDirectives);
+mergeTemplateAttributes(templateAttrs, newTemplateAttrs);
+ii = directives.length;
+} else {
+$compileNode.html(directiveValue);
+}
+}
+if (directive.templateUrl) {
+assertNoDuplicate('template', templateDirective, directive, $compileNode);
+templateDirective = directive;
+if (directive.replace) {
+replaceDirective = directive;
+}
+nodeLinkFn = compileTemplateUrl(directives.splice(i, directives.length - i), $compileNode,
+templateAttrs, jqCollection, childTranscludeFn, preLinkFns, postLinkFns, {
+controllerDirectives: controllerDirectives,
+newIsolateScopeDirective: newIsolateScopeDirective,
+templateDirective: templateDirective,
+nonTlbTranscludeDirective: nonTlbTranscludeDirective
+});
+ii = directives.length;
+} else if (directive.compile) {
+try {
+linkFn = directive.compile($compileNode, templateAttrs, childTranscludeFn);
+if (isFunction(linkFn)) {
+addLinkFns(null, linkFn, attrStart, attrEnd);
+} else if (linkFn) {
+addLinkFns(linkFn.pre, linkFn.post, attrStart, attrEnd);
+}
+} catch (e) {
+$exceptionHandler(e, startingTag($compileNode));
+}
+}
+if (directive.terminal) {
+nodeLinkFn.terminal = true;
+terminalPriority = Math.max(terminalPriority, directive.priority);
+}
+}
+nodeLinkFn.scope = newScopeDirective && newScopeDirective.scope === true;
+nodeLinkFn.transclude = hasTranscludeDirective && childTranscludeFn;
+previousCompileContext.hasElementTranscludeDirective = hasElementTranscludeDirective;
+// might be normal or delayed nodeLinkFn depending on if templateUrl is present
+return nodeLinkFn;
+////////////////////
+function addLinkFns(pre, post, attrStart, attrEnd) {
+if (pre) {
+if (attrStart) pre = groupElementsLinkFnWrapper(pre, attrStart, attrEnd);
+pre.require = directive.require;
+if (newIsolateScopeDirective === directive || directive.$$isolateScope) {
+pre = cloneAndAnnotateFn(pre, {isolateScope: true});
+}
+preLinkFns.push(pre);
+}
+if (post) {
+if (attrStart) post = groupElementsLinkFnWrapper(post, attrStart, attrEnd);
+post.require = directive.require;
+if (newIsolateScopeDirective === directive || directive.$$isolateScope) {
+post = cloneAndAnnotateFn(post, {isolateScope: true});
+}
+postLinkFns.push(post);
+}
+}
+function getControllers(require, $element, elementControllers) {
+var value, retrievalMethod = 'data', optional = false;
+if (isString(require)) {
+while((value = require.charAt(0)) == '^' || value == '?') {
+require = require.substr(1);
+if (value == '^') {
+retrievalMethod = 'inheritedData';
+}
+optional = optional || value == '?';
+}
+value = null;
+if (elementControllers && retrievalMethod === 'data') {
+value = elementControllers[require];
+}
+value = value || $element[retrievalMethod]('$' + require + 'Controller');
+if (!value && !optional) {
+throw $compileMinErr('ctreq',
+"Controller '{0}', required by directive '{1}', can't be found!",
+require, directiveName);
+}
+return value;
+} else if (isArray(require)) {
+value = [];
+forEach(require, function(require) {
+value.push(getControllers(require, $element, elementControllers));
+});
+}
+return value;
+}
+function nodeLinkFn(childLinkFn, scope, linkNode, $rootElement, boundTranscludeFn) {
+var attrs, $element, i, ii, linkFn, controller, isolateScope, elementControllers = {}, transcludeFn;
+if (compileNode === linkNode) {
+attrs = templateAttrs;
+} else {
+attrs = shallowCopy(templateAttrs, new Attributes(jqLite(linkNode), templateAttrs.$attr));
+}
+$element = attrs.$$element;
+if (newIsolateScopeDirective) {
+var LOCAL_REGEXP = /^\s*([@=&])(\??)\s*(\w*)\s*$/;
+var $linkNode = jqLite(linkNode);
+isolateScope = scope.$new(true);
+if (templateDirective && (templateDirective === newIsolateScopeDirective.$$originalDirective)) {
+$linkNode.data('$isolateScope', isolateScope) ;
+} else {
+$linkNode.data('$isolateScopeNoTemplate', isolateScope);
+}
+safeAddClass($linkNode, 'ng-isolate-scope');
+forEach(newIsolateScopeDirective.scope, function(definition, scopeName) {
+var match = definition.match(LOCAL_REGEXP) || [],
+attrName = match[3] || scopeName,
+optional = (match[2] == '?'),
+mode = match[1], // @, =, or &
+lastValue,
+parentGet, parentSet, compare;
+isolateScope.$$isolateBindings[scopeName] = mode + attrName;
+switch (mode) {
+case '@':
+attrs.$observe(attrName, function(value) {
+isolateScope[scopeName] = value;
+});
+attrs.$$observers[attrName].$$scope = scope;
+if( attrs[attrName] ) {
+// If the attribute has been provided then we trigger an interpolation to ensure
+// the value is there for use in the link fn
+isolateScope[scopeName] = $interpolate(attrs[attrName])(scope);
+}
+break;
+case '=':
+if (optional && !attrs[attrName]) {
+return;
+}
+parentGet = $parse(attrs[attrName]);
+if (parentGet.literal) {
+compare = equals;
+} else {
+compare = function(a,b) { return a === b; };
+}
+parentSet = parentGet.assign || function() {
+// reset the change, or we will throw this exception on every $digest
+lastValue = isolateScope[scopeName] = parentGet(scope);
+throw $compileMinErr('nonassign',
+"Expression '{0}' used with directive '{1}' is non-assignable!",
+attrs[attrName], newIsolateScopeDirective.name);
+};
+lastValue = isolateScope[scopeName] = parentGet(scope);
+isolateScope.$watch(function parentValueWatch() {
+var parentValue = parentGet(scope);
+if (!compare(parentValue, isolateScope[scopeName])) {
+// we are out of sync and need to copy
+if (!compare(parentValue, lastValue)) {
+// parent changed and it has precedence
+isolateScope[scopeName] = parentValue;
+} else {
+// if the parent can be assigned then do so
+parentSet(scope, parentValue = isolateScope[scopeName]);
+}
+}
+return lastValue = parentValue;
+}, null, parentGet.literal);
+break;
+case '&':
+parentGet = $parse(attrs[attrName]);
+isolateScope[scopeName] = function(locals) {
+return parentGet(scope, locals);
+};
+break;
+default:
+throw $compileMinErr('iscp',
+"Invalid isolate scope definition for directive '{0}'." +
+" Definition: {... {1}: '{2}' ...}",
+newIsolateScopeDirective.name, scopeName, definition);
+}
+});
+}
+transcludeFn = boundTranscludeFn && controllersBoundTransclude;
+if (controllerDirectives) {
+forEach(controllerDirectives, function(directive) {
+var locals = {
+$scope: directive === newIsolateScopeDirective || directive.$$isolateScope ? isolateScope : scope,
+$element: $element,
+$attrs: attrs,
+$transclude: transcludeFn
+}, controllerInstance;
+controller = directive.controller;
+if (controller == '@') {
+controller = attrs[directive.name];
+}
+controllerInstance = $controller(controller, locals);
+// For directives with element transclusion the element is a comment,
+// but jQuery .data doesn't support attaching data to comment nodes as it's hard to
+// clean up (http://bugs.jquery.com/ticket/8335).
+// Instead, we save the controllers for the element in a local hash and attach to .data
+// later, once we have the actual element.
+elementControllers[directive.name] = controllerInstance;
+if (!hasElementTranscludeDirective) {
+$element.data('$' + directive.name + 'Controller', controllerInstance);
+}
+if (directive.controllerAs) {
+locals.$scope[directive.controllerAs] = controllerInstance;
+}
+});
+}
+// PRELINKING
+for(i = 0, ii = preLinkFns.length; i < ii; i++) {
+try {
+linkFn = preLinkFns[i];
+linkFn(linkFn.isolateScope ? isolateScope : scope, $element, attrs,
+linkFn.require && getControllers(linkFn.require, $element, elementControllers), transcludeFn);
+} catch (e) {
+$exceptionHandler(e, startingTag($element));
+}
+}
+// RECURSION
+// We only pass the isolate scope, if the isolate directive has a template,
+// otherwise the child elements do not belong to the isolate directive.
+var scopeToChild = scope;
+if (newIsolateScopeDirective && (newIsolateScopeDirective.template || newIsolateScopeDirective.templateUrl === null)) {
+scopeToChild = isolateScope;
+}
+childLinkFn && childLinkFn(scopeToChild, linkNode.childNodes, undefined, boundTranscludeFn);
+// POSTLINKING
+for(i = postLinkFns.length - 1; i >= 0; i--) {
+try {
+linkFn = postLinkFns[i];
+linkFn(linkFn.isolateScope ? isolateScope : scope, $element, attrs,
+linkFn.require && getControllers(linkFn.require, $element, elementControllers), transcludeFn);
+} catch (e) {
+$exceptionHandler(e, startingTag($element));
+}
+}
+// This is the function that is injected as `$transclude`.
+function controllersBoundTransclude(scope, cloneAttachFn) {
+var transcludeControllers;
+// no scope passed
+if (arguments.length < 2) {
+cloneAttachFn = scope;
+scope = undefined;
+}
+if (hasElementTranscludeDirective) {
+transcludeControllers = elementControllers;
+}
+return boundTranscludeFn(scope, cloneAttachFn, transcludeControllers);
+}
+}
+}
+function markDirectivesAsIsolate(directives) {
+// mark all directives as needing isolate scope.
+for (var j = 0, jj = directives.length; j < jj; j++) {
+directives[j] = inherit(directives[j], {$$isolateScope: true});
+}
+}
+/**
+* looks up the directive and decorates it with exception handling and proper parameters. We
+* call this the boundDirective.
+*
+* @param {string} name name of the directive to look up.
+* @param {string} location The directive must be found in specific format.
+*   String containing any of theses characters:
+*
+*   * `E`: element name
+*   * `A': attribute
+*   * `C`: class
+*   * `M`: comment
+* @returns {boolean} true if directive was added.
+*/
+function addDirective(tDirectives, name, location, maxPriority, ignoreDirective, startAttrName,
+endAttrName) {
+if (name === ignoreDirective) return null;
+var match = null;
+if (hasDirectives.hasOwnProperty(name)) {
+for(var directive, directives = $injector.get(name + Suffix),
+i = 0, ii = directives.length; i<ii; i++) {
+try {
+directive = directives[i];
+if ( (maxPriority === undefined || maxPriority > directive.priority) &&
+directive.restrict.indexOf(location) != -1) {
+if (startAttrName) {
+directive = inherit(directive, {$$start: startAttrName, $$end: endAttrName});
+}
+tDirectives.push(directive);
+match = directive;
+}
+} catch(e) { $exceptionHandler(e); }
+}
+}
+return match;
+}
+/**
+* When the element is replaced with HTML template then the new attributes
+* on the template need to be merged with the existing attributes in the DOM.
+* The desired effect is to have both of the attributes present.
+*
+* @param {object} dst destination attributes (original DOM)
+* @param {object} src source attributes (from the directive template)
+*/
+function mergeTemplateAttributes(dst, src) {
+var srcAttr = src.$attr,
+dstAttr = dst.$attr,
+$element = dst.$$element;
+// reapply the old attributes to the new element
+forEach(dst, function(value, key) {
+if (key.charAt(0) != '$') {
+if (src[key]) {
+value += (key === 'style' ? ';' : ' ') + src[key];
+}
+dst.$set(key, value, true, srcAttr[key]);
+}
+});
+// copy the new attributes on the old attrs object
+forEach(src, function(value, key) {
+if (key == 'class') {
+safeAddClass($element, value);
+dst['class'] = (dst['class'] ? dst['class'] + ' ' : '') + value;
+} else if (key == 'style') {
+$element.attr('style', $element.attr('style') + ';' + value);
+dst['style'] = (dst['style'] ? dst['style'] + ';' : '') + value;
+// `dst` will never contain hasOwnProperty as DOM parser won't let it.
+// You will get an "InvalidCharacterError: DOM Exception 5" error if you
+// have an attribute like "has-own-property" or "data-has-own-property", etc.
+} else if (key.charAt(0) != '$' && !dst.hasOwnProperty(key)) {
+dst[key] = value;
+dstAttr[key] = srcAttr[key];
+}
+});
+}
+function directiveTemplateContents(template) {
+var type;
+template = trim(template);
+if ((type = TABLE_CONTENT_REGEXP.exec(template))) {
+type = type[1].toLowerCase();
+var table = jqLite('<table>' + template + '</table>');
+if (/(thead|tbody|tfoot)/.test(type)) {
+return table.children(type);
+}
+table = table.children('tbody');
+if (type === 'tr') {
+return table.children('tr');
+}
+return table.children('tr').contents();
+}
+return jqLite('<div>' +
+template +
+'</div>').contents();
+}
+function compileTemplateUrl(directives, $compileNode, tAttrs,
+$rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) {
+var linkQueue = [],
+afterTemplateNodeLinkFn,
+afterTemplateChildLinkFn,
+beforeTemplateCompileNode = $compileNode[0],
+origAsyncDirective = directives.shift(),
+// The fact that we have to copy and patch the directive seems wrong!
+derivedSyncDirective = extend({}, origAsyncDirective, {
+templateUrl: null, transclude: null, replace: null, $$originalDirective: origAsyncDirective
+}),
+templateUrl = (isFunction(origAsyncDirective.templateUrl))
+? origAsyncDirective.templateUrl($compileNode, tAttrs)
+: origAsyncDirective.templateUrl;
+$compileNode.empty();
+$http.get($sce.getTrustedResourceUrl(templateUrl), {cache: $templateCache}).
+success(function(content) {
+var compileNode, tempTemplateAttrs, $template, childBoundTranscludeFn;
+content = denormalizeTemplate(content);
+if (origAsyncDirective.replace) {
+$template = directiveTemplateContents(content);
+compileNode = $template[0];
+if ($template.length != 1 || compileNode.nodeType !== 1) {
+throw $compileMinErr('tplrt',
+"Template for directive '{0}' must have exactly one root element. {1}",
+origAsyncDirective.name, templateUrl);
+}
+tempTemplateAttrs = {$attr: {}};
+replaceWith($rootElement, $compileNode, compileNode);
+var templateDirectives = collectDirectives(compileNode, [], tempTemplateAttrs);
+if (isObject(origAsyncDirective.scope)) {
+markDirectivesAsIsolate(templateDirectives);
+}
+directives = templateDirectives.concat(directives);
+mergeTemplateAttributes(tAttrs, tempTemplateAttrs);
+} else {
+compileNode = beforeTemplateCompileNode;
+$compileNode.html(content);
+}
+directives.unshift(derivedSyncDirective);
+afterTemplateNodeLinkFn = applyDirectivesToNode(directives, compileNode, tAttrs,
+childTranscludeFn, $compileNode, origAsyncDirective, preLinkFns, postLinkFns,
+previousCompileContext);
+forEach($rootElement, function(node, i) {
+if (node == compileNode) {
+$rootElement[i] = $compileNode[0];
+}
+});
+afterTemplateChildLinkFn = compileNodes($compileNode[0].childNodes, childTranscludeFn);
+while(linkQueue.length) {
+var scope = linkQueue.shift(),
+beforeTemplateLinkNode = linkQueue.shift(),
+linkRootElement = linkQueue.shift(),
+boundTranscludeFn = linkQueue.shift(),
+linkNode = $compileNode[0];
+if (beforeTemplateLinkNode !== beforeTemplateCompileNode) {
+var oldClasses = beforeTemplateLinkNode.className;
+if (!(previousCompileContext.hasElementTranscludeDirective &&
+origAsyncDirective.replace)) {
+// it was cloned therefore we have to clone as well.
+linkNode = jqLiteClone(compileNode);
+}
+replaceWith(linkRootElement, jqLite(beforeTemplateLinkNode), linkNode);
+// Copy in CSS classes from original node
+safeAddClass(jqLite(linkNode), oldClasses);
+}
+if (afterTemplateNodeLinkFn.transclude) {
+childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude);
+} else {
+childBoundTranscludeFn = boundTranscludeFn;
+}
+afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, linkNode, $rootElement,
+childBoundTranscludeFn);
+}
+linkQueue = null;
+}).
+error(function(response, code, headers, config) {
+throw $compileMinErr('tpload', 'Failed to load template: {0}', config.url);
+});
+return function delayedNodeLinkFn(ignoreChildLinkFn, scope, node, rootElement, boundTranscludeFn) {
+if (linkQueue) {
+linkQueue.push(scope);
+linkQueue.push(node);
+linkQueue.push(rootElement);
+linkQueue.push(boundTranscludeFn);
+} else {
+afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, node, rootElement, boundTranscludeFn);
+}
+};
+}
+/**
+* Sorting function for bound directives.
+*/
+function byPriority(a, b) {
+var diff = b.priority - a.priority;
+if (diff !== 0) return diff;
+if (a.name !== b.name) return (a.name < b.name) ? -1 : 1;
+return a.index - b.index;
+}
+function assertNoDuplicate(what, previousDirective, directive, element) {
+if (previousDirective) {
+throw $compileMinErr('multidir', 'Multiple directives [{0}, {1}] asking for {2} on: {3}',
+previousDirective.name, directive.name, what, startingTag(element));
+}
+}
+function addTextInterpolateDirective(directives, text) {
+var interpolateFn = $interpolate(text, true);
+if (interpolateFn) {
+directives.push({
+priority: 0,
+compile: valueFn(function textInterpolateLinkFn(scope, node) {
+var parent = node.parent(),
+bindings = parent.data('$binding') || [];
+bindings.push(interpolateFn);
+safeAddClass(parent.data('$binding', bindings), 'ng-binding');
+scope.$watch(interpolateFn, function interpolateFnWatchAction(value) {
+node[0].nodeValue = value;
+});
+})
+});
+}
+}
+function getTrustedContext(node, attrNormalizedName) {
+if (attrNormalizedName == "srcdoc") {
+return $sce.HTML;
+}
+var tag = nodeName_(node);
+// maction[xlink:href] can source SVG.  It's not limited to <maction>.
+if (attrNormalizedName == "xlinkHref" ||
+(tag == "FORM" && attrNormalizedName == "action") ||
+(tag != "IMG" && (attrNormalizedName == "src" ||
+attrNormalizedName == "ngSrc"))) {
+return $sce.RESOURCE_URL;
+}
+}
+function addAttrInterpolateDirective(node, directives, value, name) {
+var interpolateFn = $interpolate(value, true);
+// no interpolation found -> ignore
+if (!interpolateFn) return;
+if (name === "multiple" && nodeName_(node) === "SELECT") {
+throw $compileMinErr("selmulti",
+"Binding to the 'multiple' attribute is not supported. Element: {0}",
+startingTag(node));
+}
+directives.push({
+priority: 100,
+compile: function() {
+return {
+pre: function attrInterpolatePreLinkFn(scope, element, attr) {
+var $$observers = (attr.$$observers || (attr.$$observers = {}));
+if (EVENT_HANDLER_ATTR_REGEXP.test(name)) {
+throw $compileMinErr('nodomevents',
+"Interpolations for HTML DOM event attributes are disallowed.  Please use the " +
+"ng- versions (such as ng-click instead of onclick) instead.");
+}
+// we need to interpolate again, in case the attribute value has been updated
+// (e.g. by another directive's compile function)
+interpolateFn = $interpolate(attr[name], true, getTrustedContext(node, name));
+// if attribute was updated so that there is no interpolation going on we don't want to
+// register any observers
+if (!interpolateFn) return;
+// TODO(i): this should likely be attr.$set(name, iterpolateFn(scope) so that we reset the
+// actual attr value
+attr[name] = interpolateFn(scope);
+($$observers[name] || ($$observers[name] = [])).$$inter = true;
+(attr.$$observers && attr.$$observers[name].$$scope || scope).
+$watch(interpolateFn, function interpolateFnWatchAction(newValue, oldValue) {
+//special case for class attribute addition + removal
+//so that class changes can tap into the animation
+//hooks provided by the $animate service. Be sure to
+//skip animations when the first digest occurs (when
+//both the new and the old values are the same) since
+//the CSS classes are the non-interpolated values
+if(name === 'class' && newValue != oldValue) {
+attr.$updateClass(newValue, oldValue);
+} else {
+attr.$set(name, newValue);
+}
+});
+}
+};
+}
+});
+}
+/**
+* This is a special jqLite.replaceWith, which can replace items which
+* have no parents, provided that the containing jqLite collection is provided.
+*
+* @param {JqLite=} $rootElement The root of the compile tree. Used so that we can replace nodes
+*                               in the root of the tree.
+* @param {JqLite} elementsToRemove The jqLite element which we are going to replace. We keep
+*                                  the shell, but replace its DOM node reference.
+* @param {Node} newNode The new DOM node.
+*/
+function replaceWith($rootElement, elementsToRemove, newNode) {
+var firstElementToRemove = elementsToRemove[0],
+removeCount = elementsToRemove.length,
+parent = firstElementToRemove.parentNode,
+i, ii;
+if ($rootElement) {
+for(i = 0, ii = $rootElement.length; i < ii; i++) {
+if ($rootElement[i] == firstElementToRemove) {
+$rootElement[i++] = newNode;
+for (var j = i, j2 = j + removeCount - 1,
+jj = $rootElement.length;
+j < jj; j++, j2++) {
+if (j2 < jj) {
+$rootElement[j] = $rootElement[j2];
+} else {
+delete $rootElement[j];
+}
+}
+$rootElement.length -= removeCount - 1;
+break;
+}
+}
+}
+if (parent) {
+parent.replaceChild(newNode, firstElementToRemove);
+}
+var fragment = document.createDocumentFragment();
+fragment.appendChild(firstElementToRemove);
+newNode[jqLite.expando] = firstElementToRemove[jqLite.expando];
+for (var k = 1, kk = elementsToRemove.length; k < kk; k++) {
+var element = elementsToRemove[k];
+jqLite(element).remove(); // must do this way to clean up expando
+fragment.appendChild(element);
+delete elementsToRemove[k];
+}
+elementsToRemove[0] = newNode;
+elementsToRemove.length = 1;
+}
+function cloneAndAnnotateFn(fn, annotation) {
+return extend(function() { return fn.apply(null, arguments); }, fn, annotation);
+}
+}];
+}
+var PREFIX_REGEXP = /^(x[\:\-_]|data[\:\-_])/i;
+/**
+* Converts all accepted directives format into proper directive name.
+* All of these will become 'myDirective':
+*   my:Directive
+*   my-directive
+*   x-my-directive
+*   data-my:directive
+*
+* Also there is special case for Moz prefix starting with upper case letter.
+* @param name Name to normalize
+*/
+function directiveNormalize(name) {
+return camelCase(name.replace(PREFIX_REGEXP, ''));
+}
+/**
+* @ngdoc type
+* @name $compile.directive.Attributes
+*
+* @description
+* A shared object between directive compile / linking functions which contains normalized DOM
+* element attributes. The values reflect current binding state `{{ }}`. The normalization is
+* needed since all of these are treated as equivalent in Angular:
+*
+*    <span ng:bind="a" ng-bind="a" data-ng-bind="a" x-ng-bind="a">
+*/
+/**
+* @ngdoc property
+* @name $compile.directive.Attributes#$attr
+* @returns {object} A map of DOM element attribute names to the normalized name. This is
+*                   needed to do reverse lookup from normalized name back to actual name.
+*/
+/**
+* @ngdoc method
+* @name $compile.directive.Attributes#$set
+* @function
+*
+* @description
+* Set DOM element attribute value.
+*
+*
+* @param {string} name Normalized element attribute name of the property to modify. The name is
+*          reverse-translated using the {@link ng.$compile.directive.Attributes#$attr $attr}
+*          property to the original name.
+* @param {string} value Value to set the attribute to. The value can be an interpolated string.
+*/
+/**
+* Closure compiler type information
+*/
+function nodesetLinkingFn(
+/* angular.Scope */ scope,
+/* NodeList */ nodeList,
+/* Element */ rootElement,
+/* function(Function) */ boundTranscludeFn
+){}
+function directiveLinkingFn(
+/* nodesetLinkingFn */ nodesetLinkingFn,
+/* angular.Scope */ scope,
+/* Node */ node,
+/* Element */ rootElement,
+/* function(Function) */ boundTranscludeFn
+){}
+function tokenDifference(str1, str2) {
+var values = '',
+tokens1 = str1.split(/\s+/),
+tokens2 = str2.split(/\s+/);
+outer:
+for(var i = 0; i < tokens1.length; i++) {
+var token = tokens1[i];
+for(var j = 0; j < tokens2.length; j++) {
+if(token == tokens2[j]) continue outer;
+}
+values += (values.length > 0 ? ' ' : '') + token;
+}
+return values;
+}
+/**
+* @ngdoc provider
+* @name $controllerProvider
+* @description
+* The {@link ng.$controller $controller service} is used by Angular to create new
+* controllers.
+*
+* This provider allows controller registration via the
+* {@link ng.$controllerProvider#register register} method.
+*/
+function $ControllerProvider() {
+var controllers = {},
+CNTRL_REG = /^(\S+)(\s+as\s+(\w+))?$/;
+/**
+* @ngdoc method
+* @name $controllerProvider#register
+* @param {string|Object} name Controller name, or an object map of controllers where the keys are
+*    the names and the values are the constructors.
+* @param {Function|Array} constructor Controller constructor fn (optionally decorated with DI
+*    annotations in the array notation).
+*/
+this.register = function(name, constructor) {
+assertNotHasOwnProperty(name, 'controller');
+if (isObject(name)) {
+extend(controllers, name);
+} else {
+controllers[name] = constructor;
+}
+};
+this.$get = ['$injector', '$window', function($injector, $window) {
+/**
+* @ngdoc service
+* @name $controller
+* @requires $injector
+*
+* @param {Function|string} constructor If called with a function then it's considered to be the
+*    controller constructor function. Otherwise it's considered to be a string which is used
+*    to retrieve the controller constructor using the following steps:
+*
+*    * check if a controller with given name is registered via `$controllerProvider`
+*    * check if evaluating the string on the current scope returns a constructor
+*    * check `window[constructor]` on the global `window` object
+*
+* @param {Object} locals Injection locals for Controller.
+* @return {Object} Instance of given controller.
+*
+* @description
+* `$controller` service is responsible for instantiating controllers.
+*
+* It's just a simple call to {@link auto.$injector $injector}, but extracted into
+* a service, so that one can override this service with [BC version](https://gist.github.com/1649788).
+*/
+return function(expression, locals) {
+var instance, match, constructor, identifier;
+if(isString(expression)) {
+match = expression.match(CNTRL_REG),
+constructor = match[1],
+identifier = match[3];
+expression = controllers.hasOwnProperty(constructor)
+? controllers[constructor]
+: getter(locals.$scope, constructor, true) || getter($window, constructor, true);
+assertArgFn(expression, constructor, true);
+}
+instance = $injector.instantiate(expression, locals);
+if (identifier) {
+if (!(locals && typeof locals.$scope == 'object')) {
+throw minErr('$controller')('noscp',
+"Cannot export controller '{0}' as '{1}'! No $scope object provided via `locals`.",
+constructor || expression.name, identifier);
+}
+locals.$scope[identifier] = instance;
+}
+return instance;
+};
+}];
+}
+/**
+* @ngdoc service
+* @name $document
+* @requires $window
+*
+* @description
+* A {@link angular.element jQuery or jqLite} wrapper for the browser's `window.document` object.
+*
+* @example
+<example>
+<file name="index.html">
+<div ng-controller="MainCtrl">
+<p>$document title: <b ng-bind="title"></b></p>
+<p>window.document title: <b ng-bind="windowTitle"></b></p>
+</div>
+</file>
+<file name="script.js">
+function MainCtrl($scope, $document) {
+$scope.title = $document[0].title;
+$scope.windowTitle = angular.element(window.document)[0].title;
+}
+</file>
+</example>
+*/
+function $DocumentProvider(){
+this.$get = ['$window', function(window){
+return jqLite(window.document);
+}];
+}
+/**
+* @ngdoc service
+* @name $exceptionHandler
+* @requires ng.$log
+*
+* @description
+* Any uncaught exception in angular expressions is delegated to this service.
+* The default implementation simply delegates to `$log.error` which logs it into
+* the browser console.
+*
+* In unit tests, if `angular-mocks.js` is loaded, this service is overridden by
+* {@link ngMock.$exceptionHandler mock $exceptionHandler} which aids in testing.
+*
+* ## Example:
+*
+* ```js
+*   angular.module('exceptionOverride', []).factory('$exceptionHandler', function () {
+*     return function (exception, cause) {
+*       exception.message += ' (caused by "' + cause + '")';
+*       throw exception;
+*     };
+*   });
+* ```
+*
+* This example will override the normal action of `$exceptionHandler`, to make angular
+* exceptions fail hard when they happen, instead of just logging to the console.
+*
+* @param {Error} exception Exception associated with the error.
+* @param {string=} cause optional information about the context in which
+*       the error was thrown.
+*
+*/
+function $ExceptionHandlerProvider() {
+this.$get = ['$log', function($log) {
+return function(exception, cause) {
+$log.error.apply($log, arguments);
+};
+}];
+}
+/**
+* Parse headers into key value object
+*
+* @param {string} headers Raw headers as a string
+* @returns {Object} Parsed headers as key value object
+*/
+function parseHeaders(headers) {
+var parsed = {}, key, val, i;
+if (!headers) return parsed;
+forEach(headers.split('\n'), function(line) {
+i = line.indexOf(':');
+key = lowercase(trim(line.substr(0, i)));
+val = trim(line.substr(i + 1));
+if (key) {
+if (parsed[key]) {
+parsed[key] += ', ' + val;
+} else {
+parsed[key] = val;
+}
+}
+});
+return parsed;
+}
+/**
+* Returns a function that provides access to parsed headers.
+*
+* Headers are lazy parsed when first requested.
+* @see parseHeaders
+*
+* @param {(string|Object)} headers Headers to provide access to.
+* @returns {function(string=)} Returns a getter function which if called with:
+*
+*   - if called with single an argument returns a single header value or null
+*   - if called with no arguments returns an object containing all headers.
+*/
+function headersGetter(headers) {
+var headersObj = isObject(headers) ? headers : undefined;
+return function(name) {
+if (!headersObj) headersObj =  parseHeaders(headers);
+if (name) {
+return headersObj[lowercase(name)] || null;
+}
+return headersObj;
+};
+}
+/**
+* Chain all given functions
+*
+* This function is used for both request and response transforming
+*
+* @param {*} data Data to transform.
+* @param {function(string=)} headers Http headers getter fn.
+* @param {(Function|Array.<Function>)} fns Function or an array of functions.
+* @returns {*} Transformed data.
+*/
+function transformData(data, headers, fns) {
+if (isFunction(fns))
+return fns(data, headers);
+forEach(fns, function(fn) {
+data = fn(data, headers);
+});
+return data;
+}
+function isSuccess(status) {
+return 200 <= status && status < 300;
+}
+function $HttpProvider() {
+var JSON_START = /^\s*(\[|\{[^\{])/,
+JSON_END = /[\}\]]\s*$/,
+PROTECTION_PREFIX = /^\)\]\}',?\n/,
+CONTENT_TYPE_APPLICATION_JSON = {'Content-Type': 'application/json;charset=utf-8'};
+var defaults = this.defaults = {
+// transform incoming response data
+transformResponse: [function(data) {
+if (isString(data)) {
+// strip json vulnerability protection prefix
+data = data.replace(PROTECTION_PREFIX, '');
+if (JSON_START.test(data) && JSON_END.test(data))
+data = fromJson(data);
+}
+return data;
+}],
+// transform outgoing request data
+transformRequest: [function(d) {
+return isObject(d) && !isFile(d) && !isBlob(d) ? toJson(d) : d;
+}],
+// default headers
+headers: {
+common: {
+'Accept': 'application/json, text/plain, */*'
+},
+post:   copy(CONTENT_TYPE_APPLICATION_JSON),
+put:    copy(CONTENT_TYPE_APPLICATION_JSON),
+patch:  copy(CONTENT_TYPE_APPLICATION_JSON)
+},
+xsrfCookieName: 'XSRF-TOKEN',
+xsrfHeaderName: 'X-XSRF-TOKEN'
+};
+/**
+* Are ordered by request, i.e. they are applied in the same order as the
+* array, on request, but reverse order, on response.
+*/
+var interceptorFactories = this.interceptors = [];
+/**
+* For historical reasons, response interceptors are ordered by the order in which
+* they are applied to the response. (This is the opposite of interceptorFactories)
+*/
+var responseInterceptorFactories = this.responseInterceptors = [];
+this.$get = ['$httpBackend', '$browser', '$cacheFactory', '$rootScope', '$q', '$injector',
+function($httpBackend, $browser, $cacheFactory, $rootScope, $q, $injector) {
+var defaultCache = $cacheFactory('$http');
+/**
+* Interceptors stored in reverse order. Inner interceptors before outer interceptors.
+* The reversal is needed so that we can build up the interception chain around the
+* server request.
+*/
+var reversedInterceptors = [];
+forEach(interceptorFactories, function(interceptorFactory) {
+reversedInterceptors.unshift(isString(interceptorFactory)
+? $injector.get(interceptorFactory) : $injector.invoke(interceptorFactory));
+});
+forEach(responseInterceptorFactories, function(interceptorFactory, index) {
+var responseFn = isString(interceptorFactory)
+? $injector.get(interceptorFactory)
+: $injector.invoke(interceptorFactory);
+/**
+* Response interceptors go before "around" interceptors (no real reason, just
+* had to pick one.) But they are already reversed, so we can't use unshift, hence
+* the splice.
+*/
+reversedInterceptors.splice(index, 0, {
+response: function(response) {
+return responseFn($q.when(response));
+},
+responseError: function(response) {
+return responseFn($q.reject(response));
+}
+});
+});
+/**
+* @ngdoc service
+* @kind function
+* @name $http
+* @requires ng.$httpBackend
+* @requires $cacheFactory
+* @requires $rootScope
+* @requires $q
+* @requires $injector
+*
+* @description
+* The `$http` service is a core Angular service that facilitates communication with the remote
+* HTTP servers via the browser's [XMLHttpRequest](https://developer.mozilla.org/en/xmlhttprequest)
+* object or via [JSONP](http://en.wikipedia.org/wiki/JSONP).
+*
+* For unit testing applications that use `$http` service, see
+* {@link ngMock.$httpBackend $httpBackend mock}.
+*
+* For a higher level of abstraction, please check out the {@link ngResource.$resource
+* $resource} service.
+*
+* The $http API is based on the {@link ng.$q deferred/promise APIs} exposed by
+* the $q service. While for simple usage patterns this doesn't matter much, for advanced usage
+* it is important to familiarize yourself with these APIs and the guarantees they provide.
+*
+*
+* # General usage
+* The `$http` service is a function which takes a single argument — a configuration object —
+* that is used to generate an HTTP request and returns  a {@link ng.$q promise}
+* with two $http specific methods: `success` and `error`.
+*
+* ```js
+*   $http({method: 'GET', url: '/someUrl'}).
+*     success(function(data, status, headers, config) {
+*       // this callback will be called asynchronously
+*       // when the response is available
+*     }).
+*     error(function(data, status, headers, config) {
+*       // called asynchronously if an error occurs
+*       // or server returns response with an error status.
+*     });
+* ```
+*
+* Since the returned value of calling the $http function is a `promise`, you can also use
+* the `then` method to register callbacks, and these callbacks will receive a single argument –
+* an object representing the response. See the API signature and type info below for more
+* details.
+*
+* A response status code between 200 and 299 is considered a success status and
+* will result in the success callback being called. Note that if the response is a redirect,
+* XMLHttpRequest will transparently follow it, meaning that the error callback will not be
+* called for such responses.
+*
+* # Writing Unit Tests that use $http
+* When unit testing (using {@link ngMock ngMock}), it is necessary to call
+* {@link ngMock.$httpBackend#flush $httpBackend.flush()} to flush each pending
+* request using trained responses.
+*
+* ```
+* $httpBackend.expectGET(...);
+* $http.get(...);
+* $httpBackend.flush();
+* ```
+*
+* # Shortcut methods
+*
+* Shortcut methods are also available. All shortcut methods require passing in the URL, and
+* request data must be passed in for POST/PUT requests.
+*
+* ```js
+*   $http.get('/someUrl').success(successCallback);
+*   $http.post('/someUrl', data).success(successCallback);
+* ```
+*
+* Complete list of shortcut methods:
+*
+* - {@link ng.$http#get $http.get}
+* - {@link ng.$http#head $http.head}
+* - {@link ng.$http#post $http.post}
+* - {@link ng.$http#put $http.put}
+* - {@link ng.$http#delete $http.delete}
+* - {@link ng.$http#jsonp $http.jsonp}
+*
+*
+* # Setting HTTP Headers
+*
+* The $http service will automatically add certain HTTP headers to all requests. These defaults
+* can be fully configured by accessing the `$httpProvider.defaults.headers` configuration
+* object, which currently contains this default configuration:
+*
+* - `$httpProvider.defaults.headers.common` (headers that are common for all requests):
+*   - `Accept: application/json, text/plain, * / *`
+* - `$httpProvider.defaults.headers.post`: (header defaults for POST requests)
+*   - `Content-Type: application/json`
+* - `$httpProvider.defaults.headers.put` (header defaults for PUT requests)
+*   - `Content-Type: application/json`
+*
+* To add or overwrite these defaults, simply add or remove a property from these configuration
+* objects. To add headers for an HTTP method other than POST or PUT, simply add a new object
+* with the lowercased HTTP method name as the key, e.g.
+* `$httpProvider.defaults.headers.get = { 'My-Header' : 'value' }.
+*
+* The defaults can also be set at runtime via the `$http.defaults` object in the same
+* fashion. For example:
+*
+* ```
+* module.run(function($http) {
+*   $http.defaults.headers.common.Authentication = 'Basic YmVlcDpib29w'
+* });
+* ```
+*
+* In addition, you can supply a `headers` property in the config object passed when
+* calling `$http(config)`, which overrides the defaults without changing them globally.
+*
+*
+* # Transforming Requests and Responses
+*
+* Both requests and responses can be transformed using transform functions. By default, Angular
+* applies these transformations:
+*
+* Request transformations:
+*
+* - If the `data` property of the request configuration object contains an object, serialize it
+*   into JSON format.
+*
+* Response transformations:
+*
+*  - If XSRF prefix is detected, strip it (see Security Considerations section below).
+*  - If JSON response is detected, deserialize it using a JSON parser.
+*
+* To globally augment or override the default transforms, modify the
+* `$httpProvider.defaults.transformRequest` and `$httpProvider.defaults.transformResponse`
+* properties. These properties are by default an array of transform functions, which allows you
+* to `push` or `unshift` a new transformation function into the transformation chain. You can
+* also decide to completely override any default transformations by assigning your
+* transformation functions to these properties directly without the array wrapper.  These defaults
+* are again available on the $http factory at run-time, which may be useful if you have run-time
+* services you wish to be involved in your transformations.
+*
+* Similarly, to locally override the request/response transforms, augment the
+* `transformRequest` and/or `transformResponse` properties of the configuration object passed
+* into `$http`.
+*
+*
+* # Caching
+*
+* To enable caching, set the request configuration `cache` property to `true` (to use default
+* cache) or to a custom cache object (built with {@link ng.$cacheFactory `$cacheFactory`}).
+* When the cache is enabled, `$http` stores the response from the server in the specified
+* cache. The next time the same request is made, the response is served from the cache without
+* sending a request to the server.
+*
+* Note that even if the response is served from cache, delivery of the data is asynchronous in
+* the same way that real requests are.
+*
+* If there are multiple GET requests for the same URL that should be cached using the same
+* cache, but the cache is not populated yet, only one request to the server will be made and
+* the remaining requests will be fulfilled using the response from the first request.
+*
+* You can change the default cache to a new object (built with
+* {@link ng.$cacheFactory `$cacheFactory`}) by updating the
+* {@link ng.$http#properties_defaults `$http.defaults.cache`} property. All requests who set
+* their `cache` property to `true` will now use this cache object.
+*
+* If you set the default cache to `false` then only requests that specify their own custom
+* cache object will be cached.
+*
+* # Interceptors
+*
+* Before you start creating interceptors, be sure to understand the
+* {@link ng.$q $q and deferred/promise APIs}.
+*
+* For purposes of global error handling, authentication, or any kind of synchronous or
+* asynchronous pre-processing of request or postprocessing of responses, it is desirable to be
+* able to intercept requests before they are handed to the server and
+* responses before they are handed over to the application code that
+* initiated these requests. The interceptors leverage the {@link ng.$q
+* promise APIs} to fulfill this need for both synchronous and asynchronous pre-processing.
+*
+* The interceptors are service factories that are registered with the `$httpProvider` by
+* adding them to the `$httpProvider.interceptors` array. The factory is called and
+* injected with dependencies (if specified) and returns the interceptor.
+*
+* There are two kinds of interceptors (and two kinds of rejection interceptors):
+*
+*   * `request`: interceptors get called with http `config` object. The function is free to
+*     modify the `config` or create a new one. The function needs to return the `config`
+*     directly or as a promise.
+*   * `requestError`: interceptor gets called when a previous interceptor threw an error or
+*     resolved with a rejection.
+*   * `response`: interceptors get called with http `response` object. The function is free to
+*     modify the `response` or create a new one. The function needs to return the `response`
+*     directly or as a promise.
+*   * `responseError`: interceptor gets called when a previous interceptor threw an error or
+*     resolved with a rejection.
+*
+*
+* ```js
+*   // register the interceptor as a service
+*   $provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {
+*     return {
+*       // optional method
+*       'request': function(config) {
+*         // do something on success
+*         return config || $q.when(config);
+*       },
+*
+*       // optional method
+*      'requestError': function(rejection) {
+*         // do something on error
+*         if (canRecover(rejection)) {
+*           return responseOrNewPromise
+*         }
+*         return $q.reject(rejection);
+*       },
+*
+*
+*
+*       // optional method
+*       'response': function(response) {
+*         // do something on success
+*         return response || $q.when(response);
+*       },
+*
+*       // optional method
+*      'responseError': function(rejection) {
+*         // do something on error
+*         if (canRecover(rejection)) {
+*           return responseOrNewPromise
+*         }
+*         return $q.reject(rejection);
+*       }
+*     };
+*   });
+*
+*   $httpProvider.interceptors.push('myHttpInterceptor');
+*
+*
+*   // alternatively, register the interceptor via an anonymous factory
+*   $httpProvider.interceptors.push(function($q, dependency1, dependency2) {
+*     return {
+*      'request': function(config) {
+*          // same as above
+*       },
+*
+*       'response': function(response) {
+*          // same as above
+*       }
+*     };
+*   });
+* ```
+*
+* # Response interceptors (DEPRECATED)
+*
+* Before you start creating interceptors, be sure to understand the
+* {@link ng.$q $q and deferred/promise APIs}.
+*
+* For purposes of global error handling, authentication or any kind of synchronous or
+* asynchronous preprocessing of received responses, it is desirable to be able to intercept
+* responses for http requests before they are handed over to the application code that
+* initiated these requests. The response interceptors leverage the {@link ng.$q
+* promise apis} to fulfil this need for both synchronous and asynchronous preprocessing.
+*
+* The interceptors are service factories that are registered with the $httpProvider by
+* adding them to the `$httpProvider.responseInterceptors` array. The factory is called and
+* injected with dependencies (if specified) and returns the interceptor  — a function that
+* takes a {@link ng.$q promise} and returns the original or a new promise.
+*
+* ```js
+*   // register the interceptor as a service
+*   $provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {
+*     return function(promise) {
+*       return promise.then(function(response) {
+*         // do something on success
+*         return response;
+*       }, function(response) {
+*         // do something on error
+*         if (canRecover(response)) {
+*           return responseOrNewPromise
+*         }
+*         return $q.reject(response);
+*       });
+*     }
+*   });
+*
+*   $httpProvider.responseInterceptors.push('myHttpInterceptor');
+*
+*
+*   // register the interceptor via an anonymous factory
+*   $httpProvider.responseInterceptors.push(function($q, dependency1, dependency2) {
+*     return function(promise) {
+*       // same as above
+*     }
+*   });
+* ```
+*
+*
+* # Security Considerations
+*
+* When designing web applications, consider security threats from:
+*
+* - [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)
+* - [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery)
+*
+* Both server and the client must cooperate in order to eliminate these threats. Angular comes
+* pre-configured with strategies that address these issues, but for this to work backend server
+* cooperation is required.
+*
+* ## JSON Vulnerability Protection
+*
+* A [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)
+* allows third party website to turn your JSON resource URL into
+* [JSONP](http://en.wikipedia.org/wiki/JSONP) request under some conditions. To
+* counter this your server can prefix all JSON requests with following string `")]}',\n"`.
+* Angular will automatically strip the prefix before processing it as JSON.
+*
+* For example if your server needs to return:
+* ```js
+* ['one','two']
+* ```
+*
+* which is vulnerable to attack, your server can return:
+* ```js
+* )]}',
+* ['one','two']
+* ```
+*
+* Angular will strip the prefix, before processing the JSON.
+*
+*
+* ## Cross Site Request Forgery (XSRF) Protection
+*
+* [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery) is a technique by which
+* an unauthorized site can gain your user's private data. Angular provides a mechanism
+* to counter XSRF. When performing XHR requests, the $http service reads a token from a cookie
+* (by default, `XSRF-TOKEN`) and sets it as an HTTP header (`X-XSRF-TOKEN`). Since only
+* JavaScript that runs on your domain could read the cookie, your server can be assured that
+* the XHR came from JavaScript running on your domain. The header will not be set for
+* cross-domain requests.
+*
+* To take advantage of this, your server needs to set a token in a JavaScript readable session
+* cookie called `XSRF-TOKEN` on the first HTTP GET request. On subsequent XHR requests the
+* server can verify that the cookie matches `X-XSRF-TOKEN` HTTP header, and therefore be sure
+* that only JavaScript running on your domain could have sent the request. The token must be
+* unique for each user and must be verifiable by the server (to prevent the JavaScript from
+* making up its own tokens). We recommend that the token is a digest of your site's
+* authentication cookie with a [salt](https://en.wikipedia.org/wiki/Salt_(cryptography))
+* for added security.
+*
+* The name of the headers can be specified using the xsrfHeaderName and xsrfCookieName
+* properties of either $httpProvider.defaults at config-time, $http.defaults at run-time,
+* or the per-request config object.
+*
+*
+* @param {object} config Object describing the request to be made and how it should be
+*    processed. The object has following properties:
+*
+*    - **method** – `{string}` – HTTP method (e.g. 'GET', 'POST', etc)
+*    - **url** – `{string}` – Absolute or relative URL of the resource that is being requested.
+*    - **params** – `{Object.<string|Object>}` – Map of strings or objects which will be turned
+*      to `?key1=value1&key2=value2` after the url. If the value is not a string, it will be
+*      JSONified.
+*    - **data** – `{string|Object}` – Data to be sent as the request message data.
+*    - **headers** – `{Object}` – Map of strings or functions which return strings representing
+*      HTTP headers to send to the server. If the return value of a function is null, the
+*      header will not be sent.
+*    - **xsrfHeaderName** – `{string}` – Name of HTTP header to populate with the XSRF token.
+*    - **xsrfCookieName** – `{string}` – Name of cookie containing the XSRF token.
+*    - **transformRequest** –
+*      `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –
+*      transform function or an array of such functions. The transform function takes the http
+*      request body and headers and returns its transformed (typically serialized) version.
+*    - **transformResponse** –
+*      `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –
+*      transform function or an array of such functions. The transform function takes the http
+*      response body and headers and returns its transformed (typically deserialized) version.
+*    - **cache** – `{boolean|Cache}` – If true, a default $http cache will be used to cache the
+*      GET request, otherwise if a cache instance built with
+*      {@link ng.$cacheFactory $cacheFactory}, this cache will be used for
+*      caching.
+*    - **timeout** – `{number|Promise}` – timeout in milliseconds, or {@link ng.$q promise}
+*      that should abort the request when resolved.
+*    - **withCredentials** - `{boolean}` - whether to to set the `withCredentials` flag on the
+*      XHR object. See [requests with credentials]https://developer.mozilla.org/en/http_access_control#section_5
+*      for more information.
+*    - **responseType** - `{string}` - see
+*      [requestType](https://developer.mozilla.org/en-US/docs/DOM/XMLHttpRequest#responseType).
+*
+* @returns {HttpPromise} Returns a {@link ng.$q promise} object with the
+*   standard `then` method and two http specific methods: `success` and `error`. The `then`
+*   method takes two arguments a success and an error callback which will be called with a
+*   response object. The `success` and `error` methods take a single argument - a function that
+*   will be called when the request succeeds or fails respectively. The arguments passed into
+*   these functions are destructured representation of the response object passed into the
+*   `then` method. The response object has these properties:
+*
+*   - **data** – `{string|Object}` – The response body transformed with the transform
+*     functions.
+*   - **status** – `{number}` – HTTP status code of the response.
+*   - **headers** – `{function([headerName])}` – Header getter function.
+*   - **config** – `{Object}` – The configuration object that was used to generate the request.
+*
+* @property {Array.<Object>} pendingRequests Array of config objects for currently pending
+*   requests. This is primarily meant to be used for debugging purposes.
+*
+*
+* @example
+<example>
+<file name="index.html">
+<div ng-controller="FetchCtrl">
+<select ng-model="method">
+<option>GET</option>
+<option>JSONP</option>
+</select>
+<input type="text" ng-model="url" size="80"/>
+<button id="fetchbtn" ng-click="fetch()">fetch</button><br>
+<button id="samplegetbtn" ng-click="updateModel('GET', 'http-hello.html')">Sample GET</button>
+<button id="samplejsonpbtn"
+ng-click="updateModel('JSONP',
+'http://angularjs.org/greet.php?callback=JSON_CALLBACK&name=Super%20Hero')">
+Sample JSONP
+</button>
+<button id="invalidjsonpbtn"
+ng-click="updateModel('JSONP', 'http://angularjs.org/doesntexist&callback=JSON_CALLBACK')">
+Invalid JSONP
+</button>
+<pre>http status code: {{status}}</pre>
+<pre>http response data: {{data}}</pre>
+</div>
+</file>
+<file name="script.js">
+function FetchCtrl($scope, $http, $templateCache) {
+$scope.method = 'GET';
+$scope.url = 'http-hello.html';
+$scope.fetch = function() {
+$scope.code = null;
+$scope.response = null;
+$http({method: $scope.method, url: $scope.url, cache: $templateCache}).
+success(function(data, status) {
+$scope.status = status;
+$scope.data = data;
+}).
+error(function(data, status) {
+$scope.data = data || "Request failed";
+$scope.status = status;
+});
+};
+$scope.updateModel = function(method, url) {
+$scope.method = method;
+$scope.url = url;
+};
+}
+</file>
+<file name="http-hello.html">
+Hello, $http!
+</file>
+<file name="protractor.js" type="protractor">
+var status = element(by.binding('status'));
+var data = element(by.binding('data'));
+var fetchBtn = element(by.id('fetchbtn'));
+var sampleGetBtn = element(by.id('samplegetbtn'));
+var sampleJsonpBtn = element(by.id('samplejsonpbtn'));
+var invalidJsonpBtn = element(by.id('invalidjsonpbtn'));
+it('should make an xhr GET request', function() {
+sampleGetBtn.click();
+fetchBtn.click();
+expect(status.getText()).toMatch('200');
+expect(data.getText()).toMatch(/Hello, \$http!/);
+});
+it('should make a JSONP request to angularjs.org', function() {
+sampleJsonpBtn.click();
+fetchBtn.click();
+expect(status.getText()).toMatch('200');
+expect(data.getText()).toMatch(/Super Hero!/);
+});
+it('should make JSONP request to invalid URL and invoke the error handler',
+function() {
+invalidJsonpBtn.click();
+fetchBtn.click();
+expect(status.getText()).toMatch('0');
+expect(data.getText()).toMatch('Request failed');
+});
+</file>
+</example>
+*/
+function $http(requestConfig) {
+var config = {
+method: 'get',
+transformRequest: defaults.transformRequest,
+transformResponse: defaults.transformResponse
+};
+var headers = mergeHeaders(requestConfig);
+extend(config, requestConfig);
+config.headers = headers;
+config.method = uppercase(config.method);
+var xsrfValue = urlIsSameOrigin(config.url)
+? $browser.cookies()[config.xsrfCookieName || defaults.xsrfCookieName]
+: undefined;
+if (xsrfValue) {
+headers[(config.xsrfHeaderName || defaults.xsrfHeaderName)] = xsrfValue;
+}
+var serverRequest = function(config) {
+headers = config.headers;
+var reqData = transformData(config.data, headersGetter(headers), config.transformRequest);
+// strip content-type if data is undefined
+if (isUndefined(config.data)) {
+forEach(headers, function(value, header) {
+if (lowercase(header) === 'content-type') {
+delete headers[header];
+}
+});
+}
+if (isUndefined(config.withCredentials) && !isUndefined(defaults.withCredentials)) {
+config.withCredentials = defaults.withCredentials;
+}
+// send request
+return sendReq(config, reqData, headers).then(transformResponse, transformResponse);
+};
+var chain = [serverRequest, undefined];
+var promise = $q.when(config);
+// apply interceptors
+forEach(reversedInterceptors, function(interceptor) {
+if (interceptor.request || interceptor.requestError) {
+chain.unshift(interceptor.request, interceptor.requestError);
+}
+if (interceptor.response || interceptor.responseError) {
+chain.push(interceptor.response, interceptor.responseError);
+}
+});
+while(chain.length) {
+var thenFn = chain.shift();
+var rejectFn = chain.shift();
+promise = promise.then(thenFn, rejectFn);
+}
+promise.success = function(fn) {
+promise.then(function(response) {
+fn(response.data, response.status, response.headers, config);
+});
+return promise;
+};
+promise.error = function(fn) {
+promise.then(null, function(response) {
+fn(response.data, response.status, response.headers, config);
+});
+return promise;
+};
+return promise;
+function transformResponse(response) {
+// make a copy since the response must be cacheable
+var resp = extend({}, response, {
+data: transformData(response.data, response.headers, config.transformResponse)
+});
+return (isSuccess(response.status))
+? resp
+: $q.reject(resp);
+}
+function mergeHeaders(config) {
+var defHeaders = defaults.headers,
+reqHeaders = extend({}, config.headers),
+defHeaderName, lowercaseDefHeaderName, reqHeaderName;
+defHeaders = extend({}, defHeaders.common, defHeaders[lowercase(config.method)]);
+// execute if header value is function
+execHeaders(defHeaders);
+execHeaders(reqHeaders);
+// using for-in instead of forEach to avoid unecessary iteration after header has been found
+defaultHeadersIteration:
+for (defHeaderName in defHeaders) {
+lowercaseDefHeaderName = lowercase(defHeaderName);
+for (reqHeaderName in reqHeaders) {
+if (lowercase(reqHeaderName) === lowercaseDefHeaderName) {
+continue defaultHeadersIteration;
+}
+}
+reqHeaders[defHeaderName] = defHeaders[defHeaderName];
+}
+return reqHeaders;
+function execHeaders(headers) {
+var headerContent;
+forEach(headers, function(headerFn, header) {
+if (isFunction(headerFn)) {
+headerContent = headerFn();
+if (headerContent != null) {
+headers[header] = headerContent;
+} else {
+delete headers[header];
+}
+}
+});
+}
+}
+}
+$http.pendingRequests = [];
+/**
+* @ngdoc method
+* @name $http#get
+*
+* @description
+* Shortcut method to perform `GET` request.
+*
+* @param {string} url Relative or absolute URL specifying the destination of the request
+* @param {Object=} config Optional configuration object
+* @returns {HttpPromise} Future object
+*/
+/**
+* @ngdoc method
+* @name $http#delete
+*
+* @description
+* Shortcut method to perform `DELETE` request.
+*
+* @param {string} url Relative or absolute URL specifying the destination of the request
+* @param {Object=} config Optional configuration object
+* @returns {HttpPromise} Future object
+*/
+/**
+* @ngdoc method
+* @name $http#head
+*
+* @description
+* Shortcut method to perform `HEAD` request.
+*
+* @param {string} url Relative or absolute URL specifying the destination of the request
+* @param {Object=} config Optional configuration object
+* @returns {HttpPromise} Future object
+*/
+/**
+* @ngdoc method
+* @name $http#jsonp
+*
+* @description
+* Shortcut method to perform `JSONP` request.
+*
+* @param {string} url Relative or absolute URL specifying the destination of the request.
+*                     Should contain `JSON_CALLBACK` string.
+* @param {Object=} config Optional configuration object
+* @returns {HttpPromise} Future object
+*/
+createShortMethods('get', 'delete', 'head', 'jsonp');
+/**
+* @ngdoc method
+* @name $http#post
+*
+* @description
+* Shortcut method to perform `POST` request.
+*
+* @param {string} url Relative or absolute URL specifying the destination of the request
+* @param {*} data Request content
+* @param {Object=} config Optional configuration object
+* @returns {HttpPromise} Future object
+*/
+/**
+* @ngdoc method
+* @name $http#put
+*
+* @description
+* Shortcut method to perform `PUT` request.
+*
+* @param {string} url Relative or absolute URL specifying the destination of the request
+* @param {*} data Request content
+* @param {Object=} config Optional configuration object
+* @returns {HttpPromise} Future object
+*/
+createShortMethodsWithData('post', 'put');
+/**
+* @ngdoc property
+* @name $http#defaults
+*
+* @description
+* Runtime equivalent of the `$httpProvider.defaults` property. Allows configuration of
+* default headers, withCredentials as well as request and response transformations.
+*
+* See "Setting HTTP Headers" and "Transforming Requests and Responses" sections above.
+*/
+$http.defaults = defaults;
+return $http;
+function createShortMethods(names) {
+forEach(arguments, function(name) {
+$http[name] = function(url, config) {
+return $http(extend(config || {}, {
+method: name,
+url: url
+}));
+};
+});
+}
+function createShortMethodsWithData(name) {
+forEach(arguments, function(name) {
+$http[name] = function(url, data, config) {
+return $http(extend(config || {}, {
+method: name,
+url: url,
+data: data
+}));
+};
+});
+}
+/**
+* Makes the request.
+*
+* !!! ACCESSES CLOSURE VARS:
+* $httpBackend, defaults, $log, $rootScope, defaultCache, $http.pendingRequests
+*/
+function sendReq(config, reqData, reqHeaders) {
+var deferred = $q.defer(),
+promise = deferred.promise,
+cache,
+cachedResp,
+url = buildUrl(config.url, config.params);
+$http.pendingRequests.push(config);
+promise.then(removePendingReq, removePendingReq);
+if ((config.cache || defaults.cache) && config.cache !== false && config.method == 'GET') {
+cache = isObject(config.cache) ? config.cache
+: isObject(defaults.cache) ? defaults.cache
+: defaultCache;
+}
+if (cache) {
+cachedResp = cache.get(url);
+if (isDefined(cachedResp)) {
+if (cachedResp.then) {
+// cached request has already been sent, but there is no response yet
+cachedResp.then(removePendingReq, removePendingReq);
+return cachedResp;
+} else {
+// serving from cache
+if (isArray(cachedResp)) {
+resolvePromise(cachedResp[1], cachedResp[0], copy(cachedResp[2]));
+} else {
+resolvePromise(cachedResp, 200, {});
+}
+}
+} else {
+// put the promise for the non-transformed response into cache as a placeholder
+cache.put(url, promise);
+}
+}
+// if we won't have the response in cache, send the request to the backend
+if (isUndefined(cachedResp)) {
+$httpBackend(config.method, url, reqData, done, reqHeaders, config.timeout,
+config.withCredentials, config.responseType);
+}
+return promise;
+/**
+* Callback registered to $httpBackend():
+*  - caches the response if desired
+*  - resolves the raw $http promise
+*  - calls $apply
+*/
+function done(status, response, headersString) {
+if (cache) {
+if (isSuccess(status)) {
+cache.put(url, [status, response, parseHeaders(headersString)]);
+} else {
+// remove promise from the cache
+cache.remove(url);
+}
+}
+resolvePromise(response, status, headersString);
+if (!$rootScope.$$phase) $rootScope.$apply();
+}
+/**
+* Resolves the raw $http promise.
+*/
+function resolvePromise(response, status, headers) {
+// normalize internal statuses to 0
+status = Math.max(status, 0);
+(isSuccess(status) ? deferred.resolve : deferred.reject)({
+data: response,
+status: status,
+headers: headersGetter(headers),
+config: config
+});
+}
+function removePendingReq() {
+var idx = indexOf($http.pendingRequests, config);
+if (idx !== -1) $http.pendingRequests.splice(idx, 1);
+}
+}
+function buildUrl(url, params) {
+if (!params) return url;
+var parts = [];
+forEachSorted(params, function(value, key) {
+if (value === null || isUndefined(value)) return;
+if (!isArray(value)) value = [value];
+forEach(value, function(v) {
+if (isObject(v)) {
+v = toJson(v);
+}
+parts.push(encodeUriQuery(key) + '=' +
+encodeUriQuery(v));
+});
+});
+if(parts.length > 0) {
+url += ((url.indexOf('?') == -1) ? '?' : '&') + parts.join('&');
+}
+return url;
+}
+}];
+}
+function createXhr(method) {
+//if IE and the method is not RFC2616 compliant, or if XMLHttpRequest
+//is not available, try getting an ActiveXObject. Otherwise, use XMLHttpRequest
+//if it is available
+if (msie <= 8 && (!method.match(/^(get|post|head|put|delete|options)$/i) ||
+!window.XMLHttpRequest)) {
+return new window.ActiveXObject("Microsoft.XMLHTTP");
+} else if (window.XMLHttpRequest) {
+return new window.XMLHttpRequest();
+}
+throw minErr('$httpBackend')('noxhr', "This browser does not support XMLHttpRequest.");
+}
+/**
+* @ngdoc service
+* @name $httpBackend
+* @requires $window
+* @requires $document
+*
+* @description
+* HTTP backend used by the {@link ng.$http service} that delegates to
+* XMLHttpRequest object or JSONP and deals with browser incompatibilities.
+*
+* You should never need to use this service directly, instead use the higher-level abstractions:
+* {@link ng.$http $http} or {@link ngResource.$resource $resource}.
+*
+* During testing this implementation is swapped with {@link ngMock.$httpBackend mock
+* $httpBackend} which can be trained with responses.
+*/
+function $HttpBackendProvider() {
+this.$get = ['$browser', '$window', '$document', function($browser, $window, $document) {
+return createHttpBackend($browser, createXhr, $browser.defer, $window.angular.callbacks, $document[0]);
+}];
+}
+function createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDocument) {
+var ABORTED = -1;
+// TODO(vojta): fix the signature
+return function(method, url, post, callback, headers, timeout, withCredentials, responseType) {
+var status;
+$browser.$$incOutstandingRequestCount();
+url = url || $browser.url();
+if (lowercase(method) == 'jsonp') {
+var callbackId = '_' + (callbacks.counter++).toString(36);
+callbacks[callbackId] = function(data) {
+callbacks[callbackId].data = data;
+};
+var jsonpDone = jsonpReq(url.replace('JSON_CALLBACK', 'angular.callbacks.' + callbackId),
+function() {
+if (callbacks[callbackId].data) {
+completeRequest(callback, 200, callbacks[callbackId].data);
+} else {
+completeRequest(callback, status || -2);
+}
+callbacks[callbackId] = angular.noop;
+});
+} else {
+var xhr = createXhr(method);
+xhr.open(method, url, true);
+forEach(headers, function(value, key) {
+if (isDefined(value)) {
+xhr.setRequestHeader(key, value);
+}
+});
+// In IE6 and 7, this might be called synchronously when xhr.send below is called and the
+// response is in the cache. the promise api will ensure that to the app code the api is
+// always async
+xhr.onreadystatechange = function() {
+// onreadystatechange might get called multiple times with readyState === 4 on mobile webkit caused by
+// xhrs that are resolved while the app is in the background (see #5426).
+// since calling completeRequest sets the `xhr` variable to null, we just check if it's not null before
+// continuing
+//
+// we can't set xhr.onreadystatechange to undefined or delete it because that breaks IE8 (method=PATCH) and
+// Safari respectively.
+if (xhr && xhr.readyState == 4) {
+var responseHeaders = null,
+response = null;
+if(status !== ABORTED) {
+responseHeaders = xhr.getAllResponseHeaders();
+// responseText is the old-school way of retrieving response (supported by IE8 & 9)
+// response/responseType properties were introduced in XHR Level2 spec (supported by IE10)
+response = ('response' in xhr) ? xhr.response : xhr.responseText;
+}
+completeRequest(callback,
+status || xhr.status,
+response,
+responseHeaders);
+}
+};
+if (withCredentials) {
+xhr.withCredentials = true;
+}
+if (responseType) {
+try {
+xhr.responseType = responseType;
+} catch (e) {
+// WebKit added support for the json responseType value on 09/03/2013
+// https://bugs.webkit.org/show_bug.cgi?id=73648. Versions of Safari prior to 7 are
+// known to throw when setting the value "json" as the response type. Other older
+// browsers implementing the responseType
+//
+// The json response type can be ignored if not supported, because JSON payloads are
+// parsed on the client-side regardless.
+if (responseType !== 'json') {
+throw e;
+}
+}
+}
+xhr.send(post || null);
+}
+if (timeout > 0) {
+var timeoutId = $browserDefer(timeoutRequest, timeout);
+} else if (timeout && timeout.then) {
+timeout.then(timeoutRequest);
+}
+function timeoutRequest() {
+status = ABORTED;
+jsonpDone && jsonpDone();
+xhr && xhr.abort();
+}
+function completeRequest(callback, status, response, headersString) {
+// cancel timeout and subsequent timeout promise resolution
+timeoutId && $browserDefer.cancel(timeoutId);
+jsonpDone = xhr = null;
+// fix status code when it is 0 (0 status is undocumented).
+// Occurs when accessing file resources or on Android 4.1 stock browser
+// while retrieving files from application cache.
+if (status === 0) {
+status = response ? 200 : urlResolve(url).protocol == 'file' ? 404 : 0;
+}
+// normalize IE bug (http://bugs.jquery.com/ticket/1450)
+status = status == 1223 ? 204 : status;
+callback(status, response, headersString);
+$browser.$$completeOutstandingRequest(noop);
+}
+};
+function jsonpReq(url, done) {
+// we can't use jQuery/jqLite here because jQuery does crazy shit with script elements, e.g.:
+// - fetches local scripts via XHR and evals them
+// - adds and immediately removes script elements from the document
+var script = rawDocument.createElement('script'),
+doneWrapper = function() {
+script.onreadystatechange = script.onload = script.onerror = null;
+rawDocument.body.removeChild(script);
+if (done) done();
+};
+script.type = 'text/javascript';
+script.src = url;
+if (msie && msie <= 8) {
+script.onreadystatechange = function() {
+if (/loaded|complete/.test(script.readyState)) {
+doneWrapper();
+}
+};
+} else {
+script.onload = script.onerror = function() {
+doneWrapper();
+};
+}
+rawDocument.body.appendChild(script);
+return doneWrapper;
+}
+}
+var $interpolateMinErr = minErr('$interpolate');
+/**
+* @ngdoc provider
+* @name $interpolateProvider
+* @function
+*
+* @description
+*
+* Used for configuring the interpolation markup. Defaults to `{{` and `}}`.
+*
+* @example
+<example module="customInterpolationApp">
+<file name="index.html">
+<script>
+var customInterpolationApp = angular.module('customInterpolationApp', []);
+customInterpolationApp.config(function($interpolateProvider) {
+$interpolateProvider.startSymbol('//');
+$interpolateProvider.endSymbol('//');
+});
+customInterpolationApp.controller('DemoController', function DemoController() {
+this.label = "This binding is brought you by // interpolation symbols.";
+});
+</script>
+<div ng-app="App" ng-controller="DemoController as demo">
+//demo.label//
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should interpolate binding with custom symbols', function() {
+expect(element(by.binding('demo.label')).getText()).toBe('This binding is brought you by // interpolation symbols.');
+});
+</file>
+</example>
+*/
+function $InterpolateProvider() {
+var startSymbol = '{{';
+var endSymbol = '}}';
+/**
+* @ngdoc method
+* @name $interpolateProvider#startSymbol
+* @description
+* Symbol to denote start of expression in the interpolated string. Defaults to `{{`.
+*
+* @param {string=} value new value to set the starting symbol to.
+* @returns {string|self} Returns the symbol when used as getter and self if used as setter.
+*/
+this.startSymbol = function(value){
+if (value) {
+startSymbol = value;
+return this;
+} else {
+return startSymbol;
+}
+};
+/**
+* @ngdoc method
+* @name $interpolateProvider#endSymbol
+* @description
+* Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.
+*
+* @param {string=} value new value to set the ending symbol to.
+* @returns {string|self} Returns the symbol when used as getter and self if used as setter.
+*/
+this.endSymbol = function(value){
+if (value) {
+endSymbol = value;
+return this;
+} else {
+return endSymbol;
+}
+};
+this.$get = ['$parse', '$exceptionHandler', '$sce', function($parse, $exceptionHandler, $sce) {
+var startSymbolLength = startSymbol.length,
+endSymbolLength = endSymbol.length;
+/**
+* @ngdoc service
+* @name $interpolate
+* @function
+*
+* @requires $parse
+* @requires $sce
+*
+* @description
+*
+* Compiles a string with markup into an interpolation function. This service is used by the
+* HTML {@link ng.$compile $compile} service for data binding. See
+* {@link ng.$interpolateProvider $interpolateProvider} for configuring the
+* interpolation markup.
+*
+*
+* ```js
+*   var $interpolate = ...; // injected
+*   var exp = $interpolate('Hello {{name | uppercase}}!');
+*   expect(exp({name:'Angular'}).toEqual('Hello ANGULAR!');
+* ```
+*
+*
+* @param {string} text The text with markup to interpolate.
+* @param {boolean=} mustHaveExpression if set to true then the interpolation string must have
+*    embedded expression in order to return an interpolation function. Strings with no
+*    embedded expression will return null for the interpolation function.
+* @param {string=} trustedContext when provided, the returned function passes the interpolated
+*    result through {@link ng.$sce#getTrusted $sce.getTrusted(interpolatedResult,
+*    trustedContext)} before returning it.  Refer to the {@link ng.$sce $sce} service that
+*    provides Strict Contextual Escaping for details.
+* @returns {function(context)} an interpolation function which is used to compute the
+*    interpolated string. The function has these parameters:
+*
+*    * `context`: an object against which any expressions embedded in the strings are evaluated
+*      against.
+*
+*/
+function $interpolate(text, mustHaveExpression, trustedContext) {
+var startIndex,
+endIndex,
+index = 0,
+parts = [],
+length = text.length,
+hasInterpolation = false,
+fn,
+exp,
+concat = [];
+while(index < length) {
+if ( ((startIndex = text.indexOf(startSymbol, index)) != -1) &&
+((endIndex = text.indexOf(endSymbol, startIndex + startSymbolLength)) != -1) ) {
+(index != startIndex) && parts.push(text.substring(index, startIndex));
+parts.push(fn = $parse(exp = text.substring(startIndex + startSymbolLength, endIndex)));
+fn.exp = exp;
+index = endIndex + endSymbolLength;
+hasInterpolation = true;
+} else {
+// we did not find anything, so we have to add the remainder to the parts array
+(index != length) && parts.push(text.substring(index));
+index = length;
+}
+}
+if (!(length = parts.length)) {
+// we added, nothing, must have been an empty string.
+parts.push('');
+length = 1;
+}
+// Concatenating expressions makes it hard to reason about whether some combination of
+// concatenated values are unsafe to use and could easily lead to XSS.  By requiring that a
+// single expression be used for iframe[src], object[src], etc., we ensure that the value
+// that's used is assigned or constructed by some JS code somewhere that is more testable or
+// make it obvious that you bound the value to some user controlled value.  This helps reduce
+// the load when auditing for XSS issues.
+if (trustedContext && parts.length > 1) {
+throw $interpolateMinErr('noconcat',
+"Error while interpolating: {0}\nStrict Contextual Escaping disallows " +
+"interpolations that concatenate multiple expressions when a trusted value is " +
+"required.  See http://docs.angularjs.org/api/ng.$sce", text);
+}
+if (!mustHaveExpression  || hasInterpolation) {
+concat.length = length;
+fn = function(context) {
+try {
+for(var i = 0, ii = length, part; i<ii; i++) {
+if (typeof (part = parts[i]) == 'function') {
+part = part(context);
+if (trustedContext) {
+part = $sce.getTrusted(trustedContext, part);
+} else {
+part = $sce.valueOf(part);
+}
+if (part === null || isUndefined(part)) {
+part = '';
+} else if (typeof part != 'string') {
+part = toJson(part);
+}
+}
+concat[i] = part;
+}
+return concat.join('');
+}
+catch(err) {
+var newErr = $interpolateMinErr('interr', "Can't interpolate: {0}\n{1}", text,
+err.toString());
+$exceptionHandler(newErr);
+}
+};
+fn.exp = text;
+fn.parts = parts;
+return fn;
+}
+}
+/**
+* @ngdoc method
+* @name $interpolate#startSymbol
+* @description
+* Symbol to denote the start of expression in the interpolated string. Defaults to `{{`.
+*
+* Use {@link ng.$interpolateProvider#startSymbol $interpolateProvider#startSymbol} to change
+* the symbol.
+*
+* @returns {string} start symbol.
+*/
+$interpolate.startSymbol = function() {
+return startSymbol;
+};
+/**
+* @ngdoc method
+* @name $interpolate#endSymbol
+* @description
+* Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.
+*
+* Use {@link ng.$interpolateProvider#endSymbol $interpolateProvider#endSymbol} to change
+* the symbol.
+*
+* @returns {string} end symbol.
+*/
+$interpolate.endSymbol = function() {
+return endSymbol;
+};
+return $interpolate;
+}];
+}
+function $IntervalProvider() {
+this.$get = ['$rootScope', '$window', '$q',
+function($rootScope,   $window,   $q) {
+var intervals = {};
+/**
+* @ngdoc service
+* @name $interval
+*
+* @description
+* Angular's wrapper for `window.setInterval`. The `fn` function is executed every `delay`
+* milliseconds.
+*
+* The return value of registering an interval function is a promise. This promise will be
+* notified upon each tick of the interval, and will be resolved after `count` iterations, or
+* run indefinitely if `count` is not defined. The value of the notification will be the
+* number of iterations that have run.
+* To cancel an interval, call `$interval.cancel(promise)`.
+*
+* In tests you can use {@link ngMock.$interval#flush `$interval.flush(millis)`} to
+* move forward by `millis` milliseconds and trigger any functions scheduled to run in that
+* time.
+*
+* <div class="alert alert-warning">
+* **Note**: Intervals created by this service must be explicitly destroyed when you are finished
+* with them.  In particular they are not automatically destroyed when a controller's scope or a
+* directive's element are destroyed.
+* You should take this into consideration and make sure to always cancel the interval at the
+* appropriate moment.  See the example below for more details on how and when to do this.
+* </div>
+*
+* @param {function()} fn A function that should be called repeatedly.
+* @param {number} delay Number of milliseconds between each function call.
+* @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat
+*   indefinitely.
+* @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise
+*   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.
+* @returns {promise} A promise which will be notified on each iteration.
+*
+* @example
+* <example module="time">
+*   <file name="index.html">
+*     <script>
+*       function Ctrl2($scope,$interval) {
+*         $scope.format = 'M/d/yy h:mm:ss a';
+*         $scope.blood_1 = 100;
+*         $scope.blood_2 = 120;
+*
+*         var stop;
+*         $scope.fight = function() {
+*           // Don't start a new fight if we are already fighting
+*           if ( angular.isDefined(stop) ) return;
+*
+*           stop = $interval(function() {
+*             if ($scope.blood_1 > 0 && $scope.blood_2 > 0) {
+*                 $scope.blood_1 = $scope.blood_1 - 3;
+*                 $scope.blood_2 = $scope.blood_2 - 4;
+*             } else {
+*                 $scope.stopFight();
+*             }
+*           }, 100);
+*         };
+*
+*         $scope.stopFight = function() {
+*           if (angular.isDefined(stop)) {
+*             $interval.cancel(stop);
+*             stop = undefined;
+*           }
+*         };
+*
+*         $scope.resetFight = function() {
+*           $scope.blood_1 = 100;
+*           $scope.blood_2 = 120;
+*         }
+*
+*         $scope.$on('$destroy', function() {
+*           // Make sure that the interval is destroyed too
+*           $scope.stopFight();
+*         });
+*       }
+*
+*       angular.module('time', [])
+*         // Register the 'myCurrentTime' directive factory method.
+*         // We inject $interval and dateFilter service since the factory method is DI.
+*         .directive('myCurrentTime', function($interval, dateFilter) {
+*           // return the directive link function. (compile function not needed)
+*           return function(scope, element, attrs) {
+*             var format,  // date format
+*             stopTime; // so that we can cancel the time updates
+*
+*             // used to update the UI
+*             function updateTime() {
+*               element.text(dateFilter(new Date(), format));
+*             }
+*
+*             // watch the expression, and update the UI on change.
+*             scope.$watch(attrs.myCurrentTime, function(value) {
+*               format = value;
+*               updateTime();
+*             });
+*
+*             stopTime = $interval(updateTime, 1000);
+*
+*             // listen on DOM destroy (removal) event, and cancel the next UI update
+*             // to prevent updating time ofter the DOM element was removed.
+*             element.bind('$destroy', function() {
+*               $interval.cancel(stopTime);
+*             });
+*           }
+*         });
+*     </script>
+*
+*     <div>
+*       <div ng-controller="Ctrl2">
+*         Date format: <input ng-model="format"> <hr/>
+*         Current time is: <span my-current-time="format"></span>
+*         <hr/>
+*         Blood 1 : <font color='red'>{{blood_1}}</font>
+*         Blood 2 : <font color='red'>{{blood_2}}</font>
+*         <button type="button" data-ng-click="fight()">Fight</button>
+*         <button type="button" data-ng-click="stopFight()">StopFight</button>
+*         <button type="button" data-ng-click="resetFight()">resetFight</button>
+*       </div>
+*     </div>
+*
+*   </file>
+* </example>
+*/
+function interval(fn, delay, count, invokeApply) {
+var setInterval = $window.setInterval,
+clearInterval = $window.clearInterval,
+deferred = $q.defer(),
+promise = deferred.promise,
+iteration = 0,
+skipApply = (isDefined(invokeApply) && !invokeApply);
+count = isDefined(count) ? count : 0;
+promise.then(null, null, fn);
+promise.$$intervalId = setInterval(function tick() {
+deferred.notify(iteration++);
+if (count > 0 && iteration >= count) {
+deferred.resolve(iteration);
+clearInterval(promise.$$intervalId);
+delete intervals[promise.$$intervalId];
+}
+if (!skipApply) $rootScope.$apply();
+}, delay);
+intervals[promise.$$intervalId] = deferred;
+return promise;
+}
+/**
+* @ngdoc method
+* @name $interval#cancel
+*
+* @description
+* Cancels a task associated with the `promise`.
+*
+* @param {promise} promise returned by the `$interval` function.
+* @returns {boolean} Returns `true` if the task was successfully canceled.
+*/
+interval.cancel = function(promise) {
+if (promise && promise.$$intervalId in intervals) {
+intervals[promise.$$intervalId].reject('canceled');
+clearInterval(promise.$$intervalId);
+delete intervals[promise.$$intervalId];
+return true;
+}
+return false;
+};
+return interval;
+}];
+}
+/**
+* @ngdoc service
+* @name $locale
+*
+* @description
+* $locale service provides localization rules for various Angular components. As of right now the
+* only public api is:
+*
+* * `id` – `{string}` – locale id formatted as `languageId-countryId` (e.g. `en-us`)
+*/
+function $LocaleProvider(){
+this.$get = function() {
+return {
+id: 'en-us',
+NUMBER_FORMATS: {
+DECIMAL_SEP: '.',
+GROUP_SEP: ',',
+PATTERNS: [
+{ // Decimal Pattern
+minInt: 1,
+minFrac: 0,
+maxFrac: 3,
+posPre: '',
+posSuf: '',
+negPre: '-',
+negSuf: '',
+gSize: 3,
+lgSize: 3
+},{ //Currency Pattern
+minInt: 1,
+minFrac: 2,
+maxFrac: 2,
+posPre: '\u00A4',
+posSuf: '',
+negPre: '(\u00A4',
+negSuf: ')',
+gSize: 3,
+lgSize: 3
+}
+],
+CURRENCY_SYM: '$'
+},
+DATETIME_FORMATS: {
+MONTH:
+'January,February,March,April,May,June,July,August,September,October,November,December'
+.split(','),
+SHORTMONTH:  'Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec'.split(','),
+DAY: 'Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday'.split(','),
+SHORTDAY: 'Sun,Mon,Tue,Wed,Thu,Fri,Sat'.split(','),
+AMPMS: ['AM','PM'],
+medium: 'MMM d, y h:mm:ss a',
+short: 'M/d/yy h:mm a',
+fullDate: 'EEEE, MMMM d, y',
+longDate: 'MMMM d, y',
+mediumDate: 'MMM d, y',
+shortDate: 'M/d/yy',
+mediumTime: 'h:mm:ss a',
+shortTime: 'h:mm a'
+},
+pluralCat: function(num) {
+if (num === 1) {
+return 'one';
+}
+return 'other';
+}
+};
+};
+}
+var PATH_MATCH = /^([^\?#]*)(\?([^#]*))?(#(.*))?$/,
+DEFAULT_PORTS = {'http': 80, 'https': 443, 'ftp': 21};
+var $locationMinErr = minErr('$location');
+/**
+* Encode path using encodeUriSegment, ignoring forward slashes
+*
+* @param {string} path Path to encode
+* @returns {string}
+*/
+function encodePath(path) {
+var segments = path.split('/'),
+i = segments.length;
+while (i--) {
+segments[i] = encodeUriSegment(segments[i]);
+}
+return segments.join('/');
+}
+function parseAbsoluteUrl(absoluteUrl, locationObj, appBase) {
+var parsedUrl = urlResolve(absoluteUrl, appBase);
+locationObj.$$protocol = parsedUrl.protocol;
+locationObj.$$host = parsedUrl.hostname;
+locationObj.$$port = int(parsedUrl.port) || DEFAULT_PORTS[parsedUrl.protocol] || null;
+}
+function parseAppUrl(relativeUrl, locationObj, appBase) {
+var prefixed = (relativeUrl.charAt(0) !== '/');
+if (prefixed) {
+relativeUrl = '/' + relativeUrl;
+}
+var match = urlResolve(relativeUrl, appBase);
+locationObj.$$path = decodeURIComponent(prefixed && match.pathname.charAt(0) === '/' ?
+match.pathname.substring(1) : match.pathname);
+locationObj.$$search = parseKeyValue(match.search);
+locationObj.$$hash = decodeURIComponent(match.hash);
+// make sure path starts with '/';
+if (locationObj.$$path && locationObj.$$path.charAt(0) != '/') {
+locationObj.$$path = '/' + locationObj.$$path;
+}
+}
+/**
+*
+* @param {string} begin
+* @param {string} whole
+* @returns {string} returns text from whole after begin or undefined if it does not begin with
+*                   expected string.
+*/
+function beginsWith(begin, whole) {
+if (whole.indexOf(begin) === 0) {
+return whole.substr(begin.length);
+}
+}
+function stripHash(url) {
+var index = url.indexOf('#');
+return index == -1 ? url : url.substr(0, index);
+}
+function stripFile(url) {
+return url.substr(0, stripHash(url).lastIndexOf('/') + 1);
+}
+/* return the server only (scheme://host:port) */
+function serverBase(url) {
+return url.substring(0, url.indexOf('/', url.indexOf('//') + 2));
+}
+/**
+* LocationHtml5Url represents an url
+* This object is exposed as $location service when HTML5 mode is enabled and supported
+*
+* @constructor
+* @param {string} appBase application base URL
+* @param {string} basePrefix url path prefix
+*/
+function LocationHtml5Url(appBase, basePrefix) {
+this.$$html5 = true;
+basePrefix = basePrefix || '';
+var appBaseNoFile = stripFile(appBase);
+parseAbsoluteUrl(appBase, this, appBase);
+/**
+* Parse given html5 (regular) url string into properties
+* @param {string} newAbsoluteUrl HTML5 url
+* @private
+*/
+this.$$parse = function(url) {
+var pathUrl = beginsWith(appBaseNoFile, url);
+if (!isString(pathUrl)) {
+throw $locationMinErr('ipthprfx', 'Invalid url "{0}", missing path prefix "{1}".', url,
+appBaseNoFile);
+}
+parseAppUrl(pathUrl, this, appBase);
+if (!this.$$path) {
+this.$$path = '/';
+}
+this.$$compose();
+};
+/**
+* Compose url and update `absUrl` property
+* @private
+*/
+this.$$compose = function() {
+var search = toKeyValue(this.$$search),
+hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';
+this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;
+this.$$absUrl = appBaseNoFile + this.$$url.substr(1); // first char is always '/'
+};
+this.$$rewrite = function(url) {
+var appUrl, prevAppUrl;
+if ( (appUrl = beginsWith(appBase, url)) !== undefined ) {
+prevAppUrl = appUrl;
+if ( (appUrl = beginsWith(basePrefix, appUrl)) !== undefined ) {
+return appBaseNoFile + (beginsWith('/', appUrl) || appUrl);
+} else {
+return appBase + prevAppUrl;
+}
+} else if ( (appUrl = beginsWith(appBaseNoFile, url)) !== undefined ) {
+return appBaseNoFile + appUrl;
+} else if (appBaseNoFile == url + '/') {
+return appBaseNoFile;
+}
+};
+}
+/**
+* LocationHashbangUrl represents url
+* This object is exposed as $location service when developer doesn't opt into html5 mode.
+* It also serves as the base class for html5 mode fallback on legacy browsers.
+*
+* @constructor
+* @param {string} appBase application base URL
+* @param {string} hashPrefix hashbang prefix
+*/
+function LocationHashbangUrl(appBase, hashPrefix) {
+var appBaseNoFile = stripFile(appBase);
+parseAbsoluteUrl(appBase, this, appBase);
+/**
+* Parse given hashbang url into properties
+* @param {string} url Hashbang url
+* @private
+*/
+this.$$parse = function(url) {
+var withoutBaseUrl = beginsWith(appBase, url) || beginsWith(appBaseNoFile, url);
+var withoutHashUrl = withoutBaseUrl.charAt(0) == '#'
+? beginsWith(hashPrefix, withoutBaseUrl)
+: (this.$$html5)
+? withoutBaseUrl
+: '';
+if (!isString(withoutHashUrl)) {
+throw $locationMinErr('ihshprfx', 'Invalid url "{0}", missing hash prefix "{1}".', url,
+hashPrefix);
+}
+parseAppUrl(withoutHashUrl, this, appBase);
+this.$$path = removeWindowsDriveName(this.$$path, withoutHashUrl, appBase);
+this.$$compose();
+/*
+* In Windows, on an anchor node on documents loaded from
+* the filesystem, the browser will return a pathname
+* prefixed with the drive name ('/C:/path') when a
+* pathname without a drive is set:
+*  * a.setAttribute('href', '/foo')
+*   * a.pathname === '/C:/foo' //true
+*
+* Inside of Angular, we're always using pathnames that
+* do not include drive names for routing.
+*/
+function removeWindowsDriveName (path, url, base) {
+/*
+Matches paths for file protocol on windows,
+such as /C:/foo/bar, and captures only /foo/bar.
+*/
+var windowsFilePathExp = /^\/?.*?:(\/.*)/;
+var firstPathSegmentMatch;
+//Get the relative path from the input URL.
+if (url.indexOf(base) === 0) {
+url = url.replace(base, '');
+}
+/*
+* The input URL intentionally contains a
+* first path segment that ends with a colon.
+*/
+if (windowsFilePathExp.exec(url)) {
+return path;
+}
+firstPathSegmentMatch = windowsFilePathExp.exec(path);
+return firstPathSegmentMatch ? firstPathSegmentMatch[1] : path;
+}
+};
+/**
+* Compose hashbang url and update `absUrl` property
+* @private
+*/
+this.$$compose = function() {
+var search = toKeyValue(this.$$search),
+hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';
+this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;
+this.$$absUrl = appBase + (this.$$url ? hashPrefix + this.$$url : '');
+};
+this.$$rewrite = function(url) {
+if(stripHash(appBase) == stripHash(url)) {
+return url;
+}
+};
+}
+/**
+* LocationHashbangUrl represents url
+* This object is exposed as $location service when html5 history api is enabled but the browser
+* does not support it.
+*
+* @constructor
+* @param {string} appBase application base URL
+* @param {string} hashPrefix hashbang prefix
+*/
+function LocationHashbangInHtml5Url(appBase, hashPrefix) {
+this.$$html5 = true;
+LocationHashbangUrl.apply(this, arguments);
+var appBaseNoFile = stripFile(appBase);
+this.$$rewrite = function(url) {
+var appUrl;
+if ( appBase == stripHash(url) ) {
+return url;
+} else if ( (appUrl = beginsWith(appBaseNoFile, url)) ) {
+return appBase + hashPrefix + appUrl;
+} else if ( appBaseNoFile === url + '/') {
+return appBaseNoFile;
+}
+};
+}
+LocationHashbangInHtml5Url.prototype =
+LocationHashbangUrl.prototype =
+LocationHtml5Url.prototype = {
+/**
+* Are we in html5 mode?
+* @private
+*/
+$$html5: false,
+/**
+* Has any change been replacing ?
+* @private
+*/
+$$replace: false,
+/**
+* @ngdoc method
+* @name $location#absUrl
+*
+* @description
+* This method is getter only.
+*
+* Return full url representation with all segments encoded according to rules specified in
+* [RFC 3986](http://www.ietf.org/rfc/rfc3986.txt).
+*
+* @return {string} full url
+*/
+absUrl: locationGetter('$$absUrl'),
+/**
+* @ngdoc method
+* @name $location#url
+*
+* @description
+* This method is getter / setter.
+*
+* Return url (e.g. `/path?a=b#hash`) when called without any parameter.
+*
+* Change path, search and hash, when called with parameter and return `$location`.
+*
+* @param {string=} url New url without base prefix (e.g. `/path?a=b#hash`)
+* @param {string=} replace The path that will be changed
+* @return {string} url
+*/
+url: function(url, replace) {
+if (isUndefined(url))
+return this.$$url;
+var match = PATH_MATCH.exec(url);
+if (match[1]) this.path(decodeURIComponent(match[1]));
+if (match[2] || match[1]) this.search(match[3] || '');
+this.hash(match[5] || '', replace);
+return this;
+},
+/**
+* @ngdoc method
+* @name $location#protocol
+*
+* @description
+* This method is getter only.
+*
+* Return protocol of current url.
+*
+* @return {string} protocol of current url
+*/
+protocol: locationGetter('$$protocol'),
+/**
+* @ngdoc method
+* @name $location#host
+*
+* @description
+* This method is getter only.
+*
+* Return host of current url.
+*
+* @return {string} host of current url.
+*/
+host: locationGetter('$$host'),
+/**
+* @ngdoc method
+* @name $location#port
+*
+* @description
+* This method is getter only.
+*
+* Return port of current url.
+*
+* @return {Number} port
+*/
+port: locationGetter('$$port'),
+/**
+* @ngdoc method
+* @name $location#path
+*
+* @description
+* This method is getter / setter.
+*
+* Return path of current url when called without any parameter.
+*
+* Change path when called with parameter and return `$location`.
+*
+* Note: Path should always begin with forward slash (/), this method will add the forward slash
+* if it is missing.
+*
+* @param {string=} path New path
+* @return {string} path
+*/
+path: locationGetterSetter('$$path', function(path) {
+return path.charAt(0) == '/' ? path : '/' + path;
+}),
+/**
+* @ngdoc method
+* @name $location#search
+*
+* @description
+* This method is getter / setter.
+*
+* Return search part (as object) of current url when called without any parameter.
+*
+* Change search part when called with parameter and return `$location`.
+*
+* @param {string|Object.<string>|Object.<Array.<string>>} search New search params - string or
+* hash object. Hash object may contain an array of values, which will be decoded as duplicates in
+* the url.
+*
+* @param {(string|Array<string>)=} paramValue If `search` is a string, then `paramValue` will override only a
+* single search parameter. If `paramValue` is an array, it will set the parameter as a
+* comma-separated value. If `paramValue` is `null`, the parameter will be deleted.
+*
+* @return {string} search
+*/
+search: function(search, paramValue) {
+switch (arguments.length) {
+case 0:
+return this.$$search;
+case 1:
+if (isString(search)) {
+this.$$search = parseKeyValue(search);
+} else if (isObject(search)) {
+this.$$search = search;
+} else {
+throw $locationMinErr('isrcharg',
+'The first argument of the `$location#search()` call must be a string or an object.');
+}
+break;
+default:
+if (isUndefined(paramValue) || paramValue === null) {
+delete this.$$search[search];
+} else {
+this.$$search[search] = paramValue;
+}
+}
+this.$$compose();
+return this;
+},
+/**
+* @ngdoc method
+* @name $location#hash
+*
+* @description
+* This method is getter / setter.
+*
+* Return hash fragment when called without any parameter.
+*
+* Change hash fragment when called with parameter and return `$location`.
+*
+* @param {string=} hash New hash fragment
+* @return {string} hash
+*/
+hash: locationGetterSetter('$$hash', identity),
+/**
+* @ngdoc method
+* @name $location#replace
+*
+* @description
+* If called, all changes to $location during current `$digest` will be replacing current history
+* record, instead of adding new one.
+*/
+replace: function() {
+this.$$replace = true;
+return this;
+}
+};
+function locationGetter(property) {
+return function() {
+return this[property];
+};
+}
+function locationGetterSetter(property, preprocess) {
+return function(value) {
+if (isUndefined(value))
+return this[property];
+this[property] = preprocess(value);
+this.$$compose();
+return this;
+};
+}
+/**
+* @ngdoc service
+* @name $location
+*
+* @requires $rootElement
+*
+* @description
+* The $location service parses the URL in the browser address bar (based on the
+* [window.location](https://developer.mozilla.org/en/window.location)) and makes the URL
+* available to your application. Changes to the URL in the address bar are reflected into
+* $location service and changes to $location are reflected into the browser address bar.
+*
+* **The $location service:**
+*
+* - Exposes the current URL in the browser address bar, so you can
+*   - Watch and observe the URL.
+*   - Change the URL.
+* - Synchronizes the URL with the browser when the user
+*   - Changes the address bar.
+*   - Clicks the back or forward button (or clicks a History link).
+*   - Clicks on a link.
+* - Represents the URL object as a set of methods (protocol, host, port, path, search, hash).
+*
+* For more information see {@link guide/dev_guide.services.$location Developer Guide: Angular
+* Services: Using $location}
+*/
+/**
+* @ngdoc provider
+* @name $locationProvider
+* @description
+* Use the `$locationProvider` to configure how the application deep linking paths are stored.
+*/
+function $LocationProvider(){
+var hashPrefix = '',
+html5Mode = false;
+/**
+* @ngdoc property
+* @name $locationProvider#hashPrefix
+* @description
+* @param {string=} prefix Prefix for hash part (containing path and search)
+* @returns {*} current value if used as getter or itself (chaining) if used as setter
+*/
+this.hashPrefix = function(prefix) {
+if (isDefined(prefix)) {
+hashPrefix = prefix;
+return this;
+} else {
+return hashPrefix;
+}
+};
+/**
+* @ngdoc property
+* @name $locationProvider#html5Mode
+* @description
+* @param {boolean=} mode Use HTML5 strategy if available.
+* @returns {*} current value if used as getter or itself (chaining) if used as setter
+*/
+this.html5Mode = function(mode) {
+if (isDefined(mode)) {
+html5Mode = mode;
+return this;
+} else {
+return html5Mode;
+}
+};
+/**
+* @ngdoc event
+* @name $location#$locationChangeStart
+* @eventType broadcast on root scope
+* @description
+* Broadcasted before a URL will change. This change can be prevented by calling
+* `preventDefault` method of the event. See {@link ng.$rootScope.Scope#$on} for more
+* details about event object. Upon successful change
+* {@link ng.$location#events_$locationChangeSuccess $locationChangeSuccess} is fired.
+*
+* @param {Object} angularEvent Synthetic event object.
+* @param {string} newUrl New URL
+* @param {string=} oldUrl URL that was before it was changed.
+*/
+/**
+* @ngdoc event
+* @name $location#$locationChangeSuccess
+* @eventType broadcast on root scope
+* @description
+* Broadcasted after a URL was changed.
+*
+* @param {Object} angularEvent Synthetic event object.
+* @param {string} newUrl New URL
+* @param {string=} oldUrl URL that was before it was changed.
+*/
+this.$get = ['$rootScope', '$browser', '$sniffer', '$rootElement',
+function( $rootScope,   $browser,   $sniffer,   $rootElement) {
+var $location,
+LocationMode,
+baseHref = $browser.baseHref(), // if base[href] is undefined, it defaults to ''
+initialUrl = $browser.url(),
+appBase;
+if (html5Mode) {
+appBase = serverBase(initialUrl) + (baseHref || '/');
+LocationMode = $sniffer.history ? LocationHtml5Url : LocationHashbangInHtml5Url;
+} else {
+appBase = stripHash(initialUrl);
+LocationMode = LocationHashbangUrl;
+}
+$location = new LocationMode(appBase, '#' + hashPrefix);
+$location.$$parse($location.$$rewrite(initialUrl));
+$rootElement.on('click', function(event) {
+// TODO(vojta): rewrite link when opening in new tab/window (in legacy browser)
+// currently we open nice url link and redirect then
+if (event.ctrlKey || event.metaKey || event.which == 2) return;
+var elm = jqLite(event.target);
+// traverse the DOM up to find first A tag
+while (lowercase(elm[0].nodeName) !== 'a') {
+// ignore rewriting if no A tag (reached root element, or no parent - removed from document)
+if (elm[0] === $rootElement[0] || !(elm = elm.parent())[0]) return;
+}
+var absHref = elm.prop('href');
+if (isObject(absHref) && absHref.toString() === '[object SVGAnimatedString]') {
+// SVGAnimatedString.animVal should be identical to SVGAnimatedString.baseVal, unless during
+// an animation.
+absHref = urlResolve(absHref.animVal).href;
+}
+var rewrittenUrl = $location.$$rewrite(absHref);
+if (absHref && !elm.attr('target') && rewrittenUrl && !event.isDefaultPrevented()) {
+event.preventDefault();
+if (rewrittenUrl != $browser.url()) {
+// update location manually
+$location.$$parse(rewrittenUrl);
+$rootScope.$apply();
+// hack to work around FF6 bug 684208 when scenario runner clicks on links
+window.angular['ff-684208-preventDefault'] = true;
+}
+}
+});
+// rewrite hashbang url <> html5 url
+if ($location.absUrl() != initialUrl) {
+$browser.url($location.absUrl(), true);
+}
+// update $location when $browser url changes
+$browser.onUrlChange(function(newUrl) {
+if ($location.absUrl() != newUrl) {
+$rootScope.$evalAsync(function() {
+var oldUrl = $location.absUrl();
+$location.$$parse(newUrl);
+if ($rootScope.$broadcast('$locationChangeStart', newUrl,
+oldUrl).defaultPrevented) {
+$location.$$parse(oldUrl);
+$browser.url(oldUrl);
+} else {
+afterLocationChange(oldUrl);
+}
+});
+if (!$rootScope.$$phase) $rootScope.$digest();
+}
+});
+// update browser
+var changeCounter = 0;
+$rootScope.$watch(function $locationWatch() {
+var oldUrl = $browser.url();
+var currentReplace = $location.$$replace;
+if (!changeCounter || oldUrl != $location.absUrl()) {
+changeCounter++;
+$rootScope.$evalAsync(function() {
+if ($rootScope.$broadcast('$locationChangeStart', $location.absUrl(), oldUrl).
+defaultPrevented) {
+$location.$$parse(oldUrl);
+} else {
+$browser.url($location.absUrl(), currentReplace);
+afterLocationChange(oldUrl);
+}
+});
+}
+$location.$$replace = false;
+return changeCounter;
+});
+return $location;
+function afterLocationChange(oldUrl) {
+$rootScope.$broadcast('$locationChangeSuccess', $location.absUrl(), oldUrl);
+}
+}];
+}
+/**
+* @ngdoc service
+* @name $log
+* @requires $window
+*
+* @description
+* Simple service for logging. Default implementation safely writes the message
+* into the browser's console (if present).
+*
+* The main purpose of this service is to simplify debugging and troubleshooting.
+*
+* The default is to log `debug` messages. You can use
+* {@link ng.$logProvider ng.$logProvider#debugEnabled} to change this.
+*
+* @example
+<example>
+<file name="script.js">
+function LogCtrl($scope, $log) {
+$scope.$log = $log;
+$scope.message = 'Hello World!';
+}
+</file>
+<file name="index.html">
+<div ng-controller="LogCtrl">
+<p>Reload this page with open console, enter text and hit the log button...</p>
+Message:
+<input type="text" ng-model="message"/>
+<button ng-click="$log.log(message)">log</button>
+<button ng-click="$log.warn(message)">warn</button>
+<button ng-click="$log.info(message)">info</button>
+<button ng-click="$log.error(message)">error</button>
+</div>
+</file>
+</example>
+*/
+/**
+* @ngdoc provider
+* @name $logProvider
+* @description
+* Use the `$logProvider` to configure how the application logs messages
+*/
+function $LogProvider(){
+var debug = true,
+self = this;
+/**
+* @ngdoc property
+* @name $logProvider#debugEnabled
+* @description
+* @param {boolean=} flag enable or disable debug level messages
+* @returns {*} current value if used as getter or itself (chaining) if used as setter
+*/
+this.debugEnabled = function(flag) {
+if (isDefined(flag)) {
+debug = flag;
+return this;
+} else {
+return debug;
+}
+};
+this.$get = ['$window', function($window){
+return {
+/**
+* @ngdoc method
+* @name $log#log
+*
+* @description
+* Write a log message
+*/
+log: consoleLog('log'),
+/**
+* @ngdoc method
+* @name $log#info
+*
+* @description
+* Write an information message
+*/
+info: consoleLog('info'),
+/**
+* @ngdoc method
+* @name $log#warn
+*
+* @description
+* Write a warning message
+*/
+warn: consoleLog('warn'),
+/**
+* @ngdoc method
+* @name $log#error
+*
+* @description
+* Write an error message
+*/
+error: consoleLog('error'),
+/**
+* @ngdoc method
+* @name $log#debug
+*
+* @description
+* Write a debug message
+*/
+debug: (function () {
+var fn = consoleLog('debug');
+return function() {
+if (debug) {
+fn.apply(self, arguments);
+}
+};
+}())
+};
+function formatError(arg) {
+if (arg instanceof Error) {
+if (arg.stack) {
+arg = (arg.message && arg.stack.indexOf(arg.message) === -1)
+? 'Error: ' + arg.message + '\n' + arg.stack
+: arg.stack;
+} else if (arg.sourceURL) {
+arg = arg.message + '\n' + arg.sourceURL + ':' + arg.line;
+}
+}
+return arg;
+}
+function consoleLog(type) {
+var console = $window.console || {},
+logFn = console[type] || console.log || noop,
+hasApply = false;
+// Note: reading logFn.apply throws an error in IE11 in IE8 document mode.
+// The reason behind this is that console.log has type "object" in IE8...
+try {
+hasApply = !!logFn.apply;
+} catch (e) {}
+if (hasApply) {
+return function() {
+var args = [];
+forEach(arguments, function(arg) {
+args.push(formatError(arg));
+});
+return logFn.apply(console, args);
+};
+}
+// we are IE which either doesn't have window.console => this is noop and we do nothing,
+// or we are IE where console.log doesn't have apply so we log at least first 2 args
+return function(arg1, arg2) {
+logFn(arg1, arg2 == null ? '' : arg2);
+};
+}
+}];
+}
+var $parseMinErr = minErr('$parse');
+var promiseWarningCache = {};
+var promiseWarning;
+// Sandboxing Angular Expressions
+// ------------------------------
+// Angular expressions are generally considered safe because these expressions only have direct
+// access to $scope and locals. However, one can obtain the ability to execute arbitrary JS code by
+// obtaining a reference to native JS functions such as the Function constructor.
+//
+// As an example, consider the following Angular expression:
+//
+//   {}.toString.constructor(alert("evil JS code"))
+//
+// We want to prevent this type of access. For the sake of performance, during the lexing phase we
+// disallow any "dotted" access to any member named "constructor".
+//
+// For reflective calls (a[b]) we check that the value of the lookup is not the Function constructor
+// while evaluating the expression, which is a stronger but more expensive test. Since reflective
+// calls are expensive anyway, this is not such a big deal compared to static dereferencing.
+//
+// This sandboxing technique is not perfect and doesn't aim to be. The goal is to prevent exploits
+// against the expression language, but not to prevent exploits that were enabled by exposing
+// sensitive JavaScript or browser apis on Scope. Exposing such objects on a Scope is never a good
+// practice and therefore we are not even trying to protect against interaction with an object
+// explicitly exposed in this way.
+//
+// A developer could foil the name check by aliasing the Function constructor under a different
+// name on the scope.
+//
+// In general, it is not possible to access a Window object from an angular expression unless a
+// window or some DOM object that has a reference to window is published onto a Scope.
+function ensureSafeMemberName(name, fullExpression) {
+if (name === "constructor") {
+throw $parseMinErr('isecfld',
+'Referencing "constructor" field in Angular expressions is disallowed! Expression: {0}',
+fullExpression);
+}
+return name;
+}
+function ensureSafeObject(obj, fullExpression) {
+// nifty check if obj is Function that is fast and works across iframes and other contexts
+if (obj) {
+if (obj.constructor === obj) {
+throw $parseMinErr('isecfn',
+'Referencing Function in Angular expressions is disallowed! Expression: {0}',
+fullExpression);
+} else if (// isWindow(obj)
+obj.document && obj.location && obj.alert && obj.setInterval) {
+throw $parseMinErr('isecwindow',
+'Referencing the Window in Angular expressions is disallowed! Expression: {0}',
+fullExpression);
+} else if (// isElement(obj)
+obj.children && (obj.nodeName || (obj.prop && obj.attr && obj.find))) {
+throw $parseMinErr('isecdom',
+'Referencing DOM nodes in Angular expressions is disallowed! Expression: {0}',
+fullExpression);
+}
+}
+return obj;
+}
+var OPERATORS = {
+/* jshint bitwise : false */
+'null':function(){return null;},
+'true':function(){return true;},
+'false':function(){return false;},
+undefined:noop,
+'+':function(self, locals, a,b){
+a=a(self, locals); b=b(self, locals);
+if (isDefined(a)) {
+if (isDefined(b)) {
+return a + b;
+}
+return a;
+}
+return isDefined(b)?b:undefined;},
+'-':function(self, locals, a,b){
+a=a(self, locals); b=b(self, locals);
+return (isDefined(a)?a:0)-(isDefined(b)?b:0);
+},
+'*':function(self, locals, a,b){return a(self, locals)*b(self, locals);},
+'/':function(self, locals, a,b){return a(self, locals)/b(self, locals);},
+'%':function(self, locals, a,b){return a(self, locals)%b(self, locals);},
+'^':function(self, locals, a,b){return a(self, locals)^b(self, locals);},
+'=':noop,
+'===':function(self, locals, a, b){return a(self, locals)===b(self, locals);},
+'!==':function(self, locals, a, b){return a(self, locals)!==b(self, locals);},
+'==':function(self, locals, a,b){return a(self, locals)==b(self, locals);},
+'!=':function(self, locals, a,b){return a(self, locals)!=b(self, locals);},
+'<':function(self, locals, a,b){return a(self, locals)<b(self, locals);},
+'>':function(self, locals, a,b){return a(self, locals)>b(self, locals);},
+'<=':function(self, locals, a,b){return a(self, locals)<=b(self, locals);},
+'>=':function(self, locals, a,b){return a(self, locals)>=b(self, locals);},
+'&&':function(self, locals, a,b){return a(self, locals)&&b(self, locals);},
+'||':function(self, locals, a,b){return a(self, locals)||b(self, locals);},
+'&':function(self, locals, a,b){return a(self, locals)&b(self, locals);},
+//    '|':function(self, locals, a,b){return a|b;},
+'|':function(self, locals, a,b){return b(self, locals)(self, locals, a(self, locals));},
+'!':function(self, locals, a){return !a(self, locals);}
+};
+/* jshint bitwise: true */
+var ESCAPE = {"n":"\n", "f":"\f", "r":"\r", "t":"\t", "v":"\v", "'":"'", '"':'"'};
+/////////////////////////////////////////
+/**
+* @constructor
+*/
+var Lexer = function (options) {
+this.options = options;
+};
+Lexer.prototype = {
+constructor: Lexer,
+lex: function (text) {
+this.text = text;
+this.index = 0;
+this.ch = undefined;
+this.lastCh = ':'; // can start regexp
+this.tokens = [];
+var token;
+var json = [];
+while (this.index < this.text.length) {
+this.ch = this.text.charAt(this.index);
+if (this.is('"\'')) {
+this.readString(this.ch);
+} else if (this.isNumber(this.ch) || this.is('.') && this.isNumber(this.peek())) {
+this.readNumber();
+} else if (this.isIdent(this.ch)) {
+this.readIdent();
+// identifiers can only be if the preceding char was a { or ,
+if (this.was('{,') && json[0] === '{' &&
+(token = this.tokens[this.tokens.length - 1])) {
+token.json = token.text.indexOf('.') === -1;
+}
+} else if (this.is('(){}[].,;:?')) {
+this.tokens.push({
+index: this.index,
+text: this.ch,
+json: (this.was(':[,') && this.is('{[')) || this.is('}]:,')
+});
+if (this.is('{[')) json.unshift(this.ch);
+if (this.is('}]')) json.shift();
+this.index++;
+} else if (this.isWhitespace(this.ch)) {
+this.index++;
+continue;
+} else {
+var ch2 = this.ch + this.peek();
+var ch3 = ch2 + this.peek(2);
+var fn = OPERATORS[this.ch];
+var fn2 = OPERATORS[ch2];
+var fn3 = OPERATORS[ch3];
+if (fn3) {
+this.tokens.push({index: this.index, text: ch3, fn: fn3});
+this.index += 3;
+} else if (fn2) {
+this.tokens.push({index: this.index, text: ch2, fn: fn2});
+this.index += 2;
+} else if (fn) {
+this.tokens.push({
+index: this.index,
+text: this.ch,
+fn: fn,
+json: (this.was('[,:') && this.is('+-'))
+});
+this.index += 1;
+} else {
+this.throwError('Unexpected next character ', this.index, this.index + 1);
+}
+}
+this.lastCh = this.ch;
+}
+return this.tokens;
+},
+is: function(chars) {
+return chars.indexOf(this.ch) !== -1;
+},
+was: function(chars) {
+return chars.indexOf(this.lastCh) !== -1;
+},
+peek: function(i) {
+var num = i || 1;
+return (this.index + num < this.text.length) ? this.text.charAt(this.index + num) : false;
+},
+isNumber: function(ch) {
+return ('0' <= ch && ch <= '9');
+},
+isWhitespace: function(ch) {
+// IE treats non-breaking space as \u00A0
+return (ch === ' ' || ch === '\r' || ch === '\t' ||
+ch === '\n' || ch === '\v' || ch === '\u00A0');
+},
+isIdent: function(ch) {
+return ('a' <= ch && ch <= 'z' ||
+'A' <= ch && ch <= 'Z' ||
+'_' === ch || ch === '$');
+},
+isExpOperator: function(ch) {
+return (ch === '-' || ch === '+' || this.isNumber(ch));
+},
+throwError: function(error, start, end) {
+end = end || this.index;
+var colStr = (isDefined(start)
+? 's ' + start +  '-' + this.index + ' [' + this.text.substring(start, end) + ']'
+: ' ' + end);
+throw $parseMinErr('lexerr', 'Lexer Error: {0} at column{1} in expression [{2}].',
+error, colStr, this.text);
+},
+readNumber: function() {
+var number = '';
+var start = this.index;
+while (this.index < this.text.length) {
+var ch = lowercase(this.text.charAt(this.index));
+if (ch == '.' || this.isNumber(ch)) {
+number += ch;
+} else {
+var peekCh = this.peek();
+if (ch == 'e' && this.isExpOperator(peekCh)) {
+number += ch;
+} else if (this.isExpOperator(ch) &&
+peekCh && this.isNumber(peekCh) &&
+number.charAt(number.length - 1) == 'e') {
+number += ch;
+} else if (this.isExpOperator(ch) &&
+(!peekCh || !this.isNumber(peekCh)) &&
+number.charAt(number.length - 1) == 'e') {
+this.throwError('Invalid exponent');
+} else {
+break;
+}
+}
+this.index++;
+}
+number = 1 * number;
+this.tokens.push({
+index: start,
+text: number,
+json: true,
+fn: function() { return number; }
+});
+},
+readIdent: function() {
+var parser = this;
+var ident = '';
+var start = this.index;
+var lastDot, peekIndex, methodName, ch;
+while (this.index < this.text.length) {
+ch = this.text.charAt(this.index);
+if (ch === '.' || this.isIdent(ch) || this.isNumber(ch)) {
+if (ch === '.') lastDot = this.index;
+ident += ch;
+} else {
+break;
+}
+this.index++;
+}
+//check if this is not a method invocation and if it is back out to last dot
+if (lastDot) {
+peekIndex = this.index;
+while (peekIndex < this.text.length) {
+ch = this.text.charAt(peekIndex);
+if (ch === '(') {
+methodName = ident.substr(lastDot - start + 1);
+ident = ident.substr(0, lastDot - start);
+this.index = peekIndex;
+break;
+}
+if (this.isWhitespace(ch)) {
+peekIndex++;
+} else {
+break;
+}
+}
+}
+var token = {
+index: start,
+text: ident
+};
+// OPERATORS is our own object so we don't need to use special hasOwnPropertyFn
+if (OPERATORS.hasOwnProperty(ident)) {
+token.fn = OPERATORS[ident];
+token.json = OPERATORS[ident];
+} else {
+var getter = getterFn(ident, this.options, this.text);
+token.fn = extend(function(self, locals) {
+return (getter(self, locals));
+}, {
+assign: function(self, value) {
+return setter(self, ident, value, parser.text, parser.options);
+}
+});
+}
+this.tokens.push(token);
+if (methodName) {
+this.tokens.push({
+index:lastDot,
+text: '.',
+json: false
+});
+this.tokens.push({
+index: lastDot + 1,
+text: methodName,
+json: false
+});
+}
+},
+readString: function(quote) {
+var start = this.index;
+this.index++;
+var string = '';
+var rawString = quote;
+var escape = false;
+while (this.index < this.text.length) {
+var ch = this.text.charAt(this.index);
+rawString += ch;
+if (escape) {
+if (ch === 'u') {
+var hex = this.text.substring(this.index + 1, this.index + 5);
+if (!hex.match(/[\da-f]{4}/i))
+this.throwError('Invalid unicode escape [\\u' + hex + ']');
+this.index += 4;
+string += String.fromCharCode(parseInt(hex, 16));
+} else {
+var rep = ESCAPE[ch];
+if (rep) {
+string += rep;
+} else {
+string += ch;
+}
+}
+escape = false;
+} else if (ch === '\\') {
+escape = true;
+} else if (ch === quote) {
+this.index++;
+this.tokens.push({
+index: start,
+text: rawString,
+string: string,
+json: true,
+fn: function() { return string; }
+});
+return;
+} else {
+string += ch;
+}
+this.index++;
+}
+this.throwError('Unterminated quote', start);
+}
+};
+/**
+* @constructor
+*/
+var Parser = function (lexer, $filter, options) {
+this.lexer = lexer;
+this.$filter = $filter;
+this.options = options;
+};
+Parser.ZERO = function () { return 0; };
+Parser.prototype = {
+constructor: Parser,
+parse: function (text, json) {
+this.text = text;
+//TODO(i): strip all the obsolte json stuff from this file
+this.json = json;
+this.tokens = this.lexer.lex(text);
+if (json) {
+// The extra level of aliasing is here, just in case the lexer misses something, so that
+// we prevent any accidental execution in JSON.
+this.assignment = this.logicalOR;
+this.functionCall =
+this.fieldAccess =
+this.objectIndex =
+this.filterChain = function() {
+this.throwError('is not valid json', {text: text, index: 0});
+};
+}
+var value = json ? this.primary() : this.statements();
+if (this.tokens.length !== 0) {
+this.throwError('is an unexpected token', this.tokens[0]);
+}
+value.literal = !!value.literal;
+value.constant = !!value.constant;
+return value;
+},
+primary: function () {
+var primary;
+if (this.expect('(')) {
+primary = this.filterChain();
+this.consume(')');
+} else if (this.expect('[')) {
+primary = this.arrayDeclaration();
+} else if (this.expect('{')) {
+primary = this.object();
+} else {
+var token = this.expect();
+primary = token.fn;
+if (!primary) {
+this.throwError('not a primary expression', token);
+}
+if (token.json) {
+primary.constant = true;
+primary.literal = true;
+}
+}
+var next, context;
+while ((next = this.expect('(', '[', '.'))) {
+if (next.text === '(') {
+primary = this.functionCall(primary, context);
+context = null;
+} else if (next.text === '[') {
+context = primary;
+primary = this.objectIndex(primary);
+} else if (next.text === '.') {
+context = primary;
+primary = this.fieldAccess(primary);
+} else {
+this.throwError('IMPOSSIBLE');
+}
+}
+return primary;
+},
+throwError: function(msg, token) {
+throw $parseMinErr('syntax',
+'Syntax Error: Token \'{0}\' {1} at column {2} of the expression [{3}] starting at [{4}].',
+token.text, msg, (token.index + 1), this.text, this.text.substring(token.index));
+},
+peekToken: function() {
+if (this.tokens.length === 0)
+throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);
+return this.tokens[0];
+},
+peek: function(e1, e2, e3, e4) {
+if (this.tokens.length > 0) {
+var token = this.tokens[0];
+var t = token.text;
+if (t === e1 || t === e2 || t === e3 || t === e4 ||
+(!e1 && !e2 && !e3 && !e4)) {
+return token;
+}
+}
+return false;
+},
+expect: function(e1, e2, e3, e4){
+var token = this.peek(e1, e2, e3, e4);
+if (token) {
+if (this.json && !token.json) {
+this.throwError('is not valid json', token);
+}
+this.tokens.shift();
+return token;
+}
+return false;
+},
+consume: function(e1){
+if (!this.expect(e1)) {
+this.throwError('is unexpected, expecting [' + e1 + ']', this.peek());
+}
+},
+unaryFn: function(fn, right) {
+return extend(function(self, locals) {
+return fn(self, locals, right);
+}, {
+constant:right.constant
+});
+},
+ternaryFn: function(left, middle, right){
+return extend(function(self, locals){
+return left(self, locals) ? middle(self, locals) : right(self, locals);
+}, {
+constant: left.constant && middle.constant && right.constant
+});
+},
+binaryFn: function(left, fn, right) {
+return extend(function(self, locals) {
+return fn(self, locals, left, right);
+}, {
+constant:left.constant && right.constant
+});
+},
+statements: function() {
+var statements = [];
+while (true) {
+if (this.tokens.length > 0 && !this.peek('}', ')', ';', ']'))
+statements.push(this.filterChain());
+if (!this.expect(';')) {
+// optimize for the common case where there is only one statement.
+// TODO(size): maybe we should not support multiple statements?
+return (statements.length === 1)
+? statements[0]
+: function(self, locals) {
+var value;
+for (var i = 0; i < statements.length; i++) {
+var statement = statements[i];
+if (statement) {
+value = statement(self, locals);
+}
+}
+return value;
+};
+}
+}
+},
+filterChain: function() {
+var left = this.expression();
+var token;
+while (true) {
+if ((token = this.expect('|'))) {
+left = this.binaryFn(left, token.fn, this.filter());
+} else {
+return left;
+}
+}
+},
+filter: function() {
+var token = this.expect();
+var fn = this.$filter(token.text);
+var argsFn = [];
+while (true) {
+if ((token = this.expect(':'))) {
+argsFn.push(this.expression());
+} else {
+var fnInvoke = function(self, locals, input) {
+var args = [input];
+for (var i = 0; i < argsFn.length; i++) {
+args.push(argsFn[i](self, locals));
+}
+return fn.apply(self, args);
+};
+return function() {
+return fnInvoke;
+};
+}
+}
+},
+expression: function() {
+return this.assignment();
+},
+assignment: function() {
+var left = this.ternary();
+var right;
+var token;
+if ((token = this.expect('='))) {
+if (!left.assign) {
+this.throwError('implies assignment but [' +
+this.text.substring(0, token.index) + '] can not be assigned to', token);
+}
+right = this.ternary();
+return function(scope, locals) {
+return left.assign(scope, right(scope, locals), locals);
+};
+}
+return left;
+},
+ternary: function() {
+var left = this.logicalOR();
+var middle;
+var token;
+if ((token = this.expect('?'))) {
+middle = this.ternary();
+if ((token = this.expect(':'))) {
+return this.ternaryFn(left, middle, this.ternary());
+} else {
+this.throwError('expected :', token);
+}
+} else {
+return left;
+}
+},
+logicalOR: function() {
+var left = this.logicalAND();
+var token;
+while (true) {
+if ((token = this.expect('||'))) {
+left = this.binaryFn(left, token.fn, this.logicalAND());
+} else {
+return left;
+}
+}
+},
+logicalAND: function() {
+var left = this.equality();
+var token;
+if ((token = this.expect('&&'))) {
+left = this.binaryFn(left, token.fn, this.logicalAND());
+}
+return left;
+},
+equality: function() {
+var left = this.relational();
+var token;
+if ((token = this.expect('==','!=','===','!=='))) {
+left = this.binaryFn(left, token.fn, this.equality());
+}
+return left;
+},
+relational: function() {
+var left = this.additive();
+var token;
+if ((token = this.expect('<', '>', '<=', '>='))) {
+left = this.binaryFn(left, token.fn, this.relational());
+}
+return left;
+},
+additive: function() {
+var left = this.multiplicative();
+var token;
+while ((token = this.expect('+','-'))) {
+left = this.binaryFn(left, token.fn, this.multiplicative());
+}
+return left;
+},
+multiplicative: function() {
+var left = this.unary();
+var token;
+while ((token = this.expect('*','/','%'))) {
+left = this.binaryFn(left, token.fn, this.unary());
+}
+return left;
+},
+unary: function() {
+var token;
+if (this.expect('+')) {
+return this.primary();
+} else if ((token = this.expect('-'))) {
+return this.binaryFn(Parser.ZERO, token.fn, this.unary());
+} else if ((token = this.expect('!'))) {
+return this.unaryFn(token.fn, this.unary());
+} else {
+return this.primary();
+}
+},
+fieldAccess: function(object) {
+var parser = this;
+var field = this.expect().text;
+var getter = getterFn(field, this.options, this.text);
+return extend(function(scope, locals, self) {
+return getter(self || object(scope, locals));
+}, {
+assign: function(scope, value, locals) {
+return setter(object(scope, locals), field, value, parser.text, parser.options);
+}
+});
+},
+objectIndex: function(obj) {
+var parser = this;
+var indexFn = this.expression();
+this.consume(']');
+return extend(function(self, locals) {
+var o = obj(self, locals),
+i = indexFn(self, locals),
+v, p;
+if (!o) return undefined;
+v = ensureSafeObject(o[i], parser.text);
+if (v && v.then && parser.options.unwrapPromises) {
+p = v;
+if (!('$$v' in v)) {
+p.$$v = undefined;
+p.then(function(val) { p.$$v = val; });
+}
+v = v.$$v;
+}
+return v;
+}, {
+assign: function(self, value, locals) {
+var key = indexFn(self, locals);
+// prevent overwriting of Function.constructor which would break ensureSafeObject check
+var safe = ensureSafeObject(obj(self, locals), parser.text);
+return safe[key] = value;
+}
+});
+},
+functionCall: function(fn, contextGetter) {
+var argsFn = [];
+if (this.peekToken().text !== ')') {
+do {
+argsFn.push(this.expression());
+} while (this.expect(','));
+}
+this.consume(')');
+var parser = this;
+return function(scope, locals) {
+var args = [];
+var context = contextGetter ? contextGetter(scope, locals) : scope;
+for (var i = 0; i < argsFn.length; i++) {
+args.push(argsFn[i](scope, locals));
+}
+var fnPtr = fn(scope, locals, context) || noop;
+ensureSafeObject(context, parser.text);
+ensureSafeObject(fnPtr, parser.text);
+// IE stupidity! (IE doesn't have apply for some native functions)
+var v = fnPtr.apply
+? fnPtr.apply(context, args)
+: fnPtr(args[0], args[1], args[2], args[3], args[4]);
+return ensureSafeObject(v, parser.text);
+};
+},
+// This is used with json array declaration
+arrayDeclaration: function () {
+var elementFns = [];
+var allConstant = true;
+if (this.peekToken().text !== ']') {
+do {
+if (this.peek(']')) {
+// Support trailing commas per ES5.1.
+break;
+}
+var elementFn = this.expression();
+elementFns.push(elementFn);
+if (!elementFn.constant) {
+allConstant = false;
+}
+} while (this.expect(','));
+}
+this.consume(']');
+return extend(function(self, locals) {
+var array = [];
+for (var i = 0; i < elementFns.length; i++) {
+array.push(elementFns[i](self, locals));
+}
+return array;
+}, {
+literal: true,
+constant: allConstant
+});
+},
+object: function () {
+var keyValues = [];
+var allConstant = true;
+if (this.peekToken().text !== '}') {
+do {
+if (this.peek('}')) {
+// Support trailing commas per ES5.1.
+break;
+}
+var token = this.expect(),
+key = token.string || token.text;
+this.consume(':');
+var value = this.expression();
+keyValues.push({key: key, value: value});
+if (!value.constant) {
+allConstant = false;
+}
+} while (this.expect(','));
+}
+this.consume('}');
+return extend(function(self, locals) {
+var object = {};
+for (var i = 0; i < keyValues.length; i++) {
+var keyValue = keyValues[i];
+object[keyValue.key] = keyValue.value(self, locals);
+}
+return object;
+}, {
+literal: true,
+constant: allConstant
+});
+}
+};
+//////////////////////////////////////////////////
+// Parser helper functions
+//////////////////////////////////////////////////
+function setter(obj, path, setValue, fullExp, options) {
+//needed?
+options = options || {};
+var element = path.split('.'), key;
+for (var i = 0; element.length > 1; i++) {
+key = ensureSafeMemberName(element.shift(), fullExp);
+var propertyObj = obj[key];
+if (!propertyObj) {
+propertyObj = {};
+obj[key] = propertyObj;
+}
+obj = propertyObj;
+if (obj.then && options.unwrapPromises) {
+promiseWarning(fullExp);
+if (!("$$v" in obj)) {
+(function(promise) {
+promise.then(function(val) { promise.$$v = val; }); }
+)(obj);
+}
+if (obj.$$v === undefined) {
+obj.$$v = {};
+}
+obj = obj.$$v;
+}
+}
+key = ensureSafeMemberName(element.shift(), fullExp);
+obj[key] = setValue;
+return setValue;
+}
+var getterFnCache = {};
+/**
+* Implementation of the "Black Hole" variant from:
+* - http://jsperf.com/angularjs-parse-getter/4
+* - http://jsperf.com/path-evaluation-simplified/7
+*/
+function cspSafeGetterFn(key0, key1, key2, key3, key4, fullExp, options) {
+ensureSafeMemberName(key0, fullExp);
+ensureSafeMemberName(key1, fullExp);
+ensureSafeMemberName(key2, fullExp);
+ensureSafeMemberName(key3, fullExp);
+ensureSafeMemberName(key4, fullExp);
+return !options.unwrapPromises
+? function cspSafeGetter(scope, locals) {
+var pathVal = (locals && locals.hasOwnProperty(key0)) ? locals : scope;
+if (pathVal == null) return pathVal;
+pathVal = pathVal[key0];
+if (!key1) return pathVal;
+if (pathVal == null) return undefined;
+pathVal = pathVal[key1];
+if (!key2) return pathVal;
+if (pathVal == null) return undefined;
+pathVal = pathVal[key2];
+if (!key3) return pathVal;
+if (pathVal == null) return undefined;
+pathVal = pathVal[key3];
+if (!key4) return pathVal;
+if (pathVal == null) return undefined;
+pathVal = pathVal[key4];
+return pathVal;
+}
+: function cspSafePromiseEnabledGetter(scope, locals) {
+var pathVal = (locals && locals.hasOwnProperty(key0)) ? locals : scope,
+promise;
+if (pathVal == null) return pathVal;
+pathVal = pathVal[key0];
+if (pathVal && pathVal.then) {
+promiseWarning(fullExp);
+if (!("$$v" in pathVal)) {
+promise = pathVal;
+promise.$$v = undefined;
+promise.then(function(val) { promise.$$v = val; });
+}
+pathVal = pathVal.$$v;
+}
+if (!key1) return pathVal;
+if (pathVal == null) return undefined;
+pathVal = pathVal[key1];
+if (pathVal && pathVal.then) {
+promiseWarning(fullExp);
+if (!("$$v" in pathVal)) {
+promise = pathVal;
+promise.$$v = undefined;
+promise.then(function(val) { promise.$$v = val; });
+}
+pathVal = pathVal.$$v;
+}
+if (!key2) return pathVal;
+if (pathVal == null) return undefined;
+pathVal = pathVal[key2];
+if (pathVal && pathVal.then) {
+promiseWarning(fullExp);
+if (!("$$v" in pathVal)) {
+promise = pathVal;
+promise.$$v = undefined;
+promise.then(function(val) { promise.$$v = val; });
+}
+pathVal = pathVal.$$v;
+}
+if (!key3) return pathVal;
+if (pathVal == null) return undefined;
+pathVal = pathVal[key3];
+if (pathVal && pathVal.then) {
+promiseWarning(fullExp);
+if (!("$$v" in pathVal)) {
+promise = pathVal;
+promise.$$v = undefined;
+promise.then(function(val) { promise.$$v = val; });
+}
+pathVal = pathVal.$$v;
+}
+if (!key4) return pathVal;
+if (pathVal == null) return undefined;
+pathVal = pathVal[key4];
+if (pathVal && pathVal.then) {
+promiseWarning(fullExp);
+if (!("$$v" in pathVal)) {
+promise = pathVal;
+promise.$$v = undefined;
+promise.then(function(val) { promise.$$v = val; });
+}
+pathVal = pathVal.$$v;
+}
+return pathVal;
+};
+}
+function simpleGetterFn1(key0, fullExp) {
+ensureSafeMemberName(key0, fullExp);
+return function simpleGetterFn1(scope, locals) {
+if (scope == null) return undefined;
+return ((locals && locals.hasOwnProperty(key0)) ? locals : scope)[key0];
+};
+}
+function simpleGetterFn2(key0, key1, fullExp) {
+ensureSafeMemberName(key0, fullExp);
+ensureSafeMemberName(key1, fullExp);
+return function simpleGetterFn2(scope, locals) {
+if (scope == null) return undefined;
+scope = ((locals && locals.hasOwnProperty(key0)) ? locals : scope)[key0];
+return scope == null ? undefined : scope[key1];
+};
+}
+function getterFn(path, options, fullExp) {
+// Check whether the cache has this getter already.
+// We can use hasOwnProperty directly on the cache because we ensure,
+// see below, that the cache never stores a path called 'hasOwnProperty'
+if (getterFnCache.hasOwnProperty(path)) {
+return getterFnCache[path];
+}
+var pathKeys = path.split('.'),
+pathKeysLength = pathKeys.length,
+fn;
+// When we have only 1 or 2 tokens, use optimized special case closures.
+// http://jsperf.com/angularjs-parse-getter/6
+if (!options.unwrapPromises && pathKeysLength === 1) {
+fn = simpleGetterFn1(pathKeys[0], fullExp);
+} else if (!options.unwrapPromises && pathKeysLength === 2) {
+fn = simpleGetterFn2(pathKeys[0], pathKeys[1], fullExp);
+} else if (options.csp) {
+if (pathKeysLength < 6) {
+fn = cspSafeGetterFn(pathKeys[0], pathKeys[1], pathKeys[2], pathKeys[3], pathKeys[4], fullExp,
+options);
+} else {
+fn = function(scope, locals) {
+var i = 0, val;
+do {
+val = cspSafeGetterFn(pathKeys[i++], pathKeys[i++], pathKeys[i++], pathKeys[i++],
+pathKeys[i++], fullExp, options)(scope, locals);
+locals = undefined; // clear after first iteration
+scope = val;
+} while (i < pathKeysLength);
+return val;
+};
+}
+} else {
+var code = 'var p;\n';
+forEach(pathKeys, function(key, index) {
+ensureSafeMemberName(key, fullExp);
+code += 'if(s == null) return undefined;\n' +
+'s='+ (index
+// we simply dereference 's' on any .dot notation
+? 's'
+// but if we are first then we check locals first, and if so read it first
+: '((k&&k.hasOwnProperty("' + key + '"))?k:s)') + '["' + key + '"]' + ';\n' +
+(options.unwrapPromises
+? 'if (s && s.then) {\n' +
+' pw("' + fullExp.replace(/(["\r\n])/g, '\\$1') + '");\n' +
+' if (!("$$v" in s)) {\n' +
+' p=s;\n' +
+' p.$$v = undefined;\n' +
+' p.then(function(v) {p.$$v=v;});\n' +
+'}\n' +
+' s=s.$$v\n' +
+'}\n'
+: '');
+});
+code += 'return s;';
+/* jshint -W054 */
+var evaledFnGetter = new Function('s', 'k', 'pw', code); // s=scope, k=locals, pw=promiseWarning
+/* jshint +W054 */
+evaledFnGetter.toString = valueFn(code);
+fn = options.unwrapPromises ? function(scope, locals) {
+return evaledFnGetter(scope, locals, promiseWarning);
+} : evaledFnGetter;
+}
+// Only cache the value if it's not going to mess up the cache object
+// This is more performant that using Object.prototype.hasOwnProperty.call
+if (path !== 'hasOwnProperty') {
+getterFnCache[path] = fn;
+}
+return fn;
+}
+///////////////////////////////////
+/**
+* @ngdoc service
+* @name $parse
+* @kind function
+*
+* @description
+*
+* Converts Angular {@link guide/expression expression} into a function.
+*
+* ```js
+*   var getter = $parse('user.name');
+*   var setter = getter.assign;
+*   var context = {user:{name:'angular'}};
+*   var locals = {user:{name:'local'}};
+*
+*   expect(getter(context)).toEqual('angular');
+*   setter(context, 'newValue');
+*   expect(context.user.name).toEqual('newValue');
+*   expect(getter(context, locals)).toEqual('local');
+* ```
+*
+*
+* @param {string} expression String expression to compile.
+* @returns {function(context, locals)} a function which represents the compiled expression:
+*
+*    * `context` – `{object}` – an object against which any expressions embedded in the strings
+*      are evaluated against (typically a scope object).
+*    * `locals` – `{object=}` – local variables context object, useful for overriding values in
+*      `context`.
+*
+*    The returned function also has the following properties:
+*      * `literal` – `{boolean}` – whether the expression's top-level node is a JavaScript
+*        literal.
+*      * `constant` – `{boolean}` – whether the expression is made entirely of JavaScript
+*        constant literals.
+*      * `assign` – `{?function(context, value)}` – if the expression is assignable, this will be
+*        set to a function to change its value on the given context.
+*
+*/
+/**
+* @ngdoc provider
+* @name $parseProvider
+* @function
+*
+* @description
+* `$parseProvider` can be used for configuring the default behavior of the {@link ng.$parse $parse}
+*  service.
+*/
+function $ParseProvider() {
+var cache = {};
+var $parseOptions = {
+csp: false,
+unwrapPromises: false,
+logPromiseWarnings: true
+};
+/**
+* @deprecated Promise unwrapping via $parse is deprecated and will be removed in the future.
+*
+* @ngdoc method
+* @name $parseProvider#unwrapPromises
+* @description
+*
+* **This feature is deprecated, see deprecation notes below for more info**
+*
+* If set to true (default is false), $parse will unwrap promises automatically when a promise is
+* found at any part of the expression. In other words, if set to true, the expression will always
+* result in a non-promise value.
+*
+* While the promise is unresolved, it's treated as undefined, but once resolved and fulfilled,
+* the fulfillment value is used in place of the promise while evaluating the expression.
+*
+* **Deprecation notice**
+*
+* This is a feature that didn't prove to be wildly useful or popular, primarily because of the
+* dichotomy between data access in templates (accessed as raw values) and controller code
+* (accessed as promises).
+*
+* In most code we ended up resolving promises manually in controllers anyway and thus unifying
+* the model access there.
+*
+* Other downsides of automatic promise unwrapping:
+*
+* - when building components it's often desirable to receive the raw promises
+* - adds complexity and slows down expression evaluation
+* - makes expression code pre-generation unattractive due to the amount of code that needs to be
+*   generated
+* - makes IDE auto-completion and tool support hard
+*
+* **Warning Logs**
+*
+* If the unwrapping is enabled, Angular will log a warning about each expression that unwraps a
+* promise (to reduce the noise, each expression is logged only once). To disable this logging use
+* `$parseProvider.logPromiseWarnings(false)` api.
+*
+*
+* @param {boolean=} value New value.
+* @returns {boolean|self} Returns the current setting when used as getter and self if used as
+*                         setter.
+*/
+this.unwrapPromises = function(value) {
+if (isDefined(value)) {
+$parseOptions.unwrapPromises = !!value;
+return this;
+} else {
+return $parseOptions.unwrapPromises;
+}
+};
+/**
+* @deprecated Promise unwrapping via $parse is deprecated and will be removed in the future.
+*
+* @ngdoc method
+* @name $parseProvider#logPromiseWarnings
+* @description
+*
+* Controls whether Angular should log a warning on any encounter of a promise in an expression.
+*
+* The default is set to `true`.
+*
+* This setting applies only if `$parseProvider.unwrapPromises` setting is set to true as well.
+*
+* @param {boolean=} value New value.
+* @returns {boolean|self} Returns the current setting when used as getter and self if used as
+*                         setter.
+*/
+this.logPromiseWarnings = function(value) {
+if (isDefined(value)) {
+$parseOptions.logPromiseWarnings = value;
+return this;
+} else {
+return $parseOptions.logPromiseWarnings;
+}
+};
+this.$get = ['$filter', '$sniffer', '$log', function($filter, $sniffer, $log) {
+$parseOptions.csp = $sniffer.csp;
+promiseWarning = function promiseWarningFn(fullExp) {
+if (!$parseOptions.logPromiseWarnings || promiseWarningCache.hasOwnProperty(fullExp)) return;
+promiseWarningCache[fullExp] = true;
+$log.warn('[$parse] Promise found in the expression `' + fullExp + '`. ' +
+'Automatic unwrapping of promises in Angular expressions is deprecated.');
+};
+return function(exp) {
+var parsedExpression;
+switch (typeof exp) {
+case 'string':
+if (cache.hasOwnProperty(exp)) {
+return cache[exp];
+}
+var lexer = new Lexer($parseOptions);
+var parser = new Parser(lexer, $filter, $parseOptions);
+parsedExpression = parser.parse(exp, false);
+if (exp !== 'hasOwnProperty') {
+// Only cache the value if it's not going to mess up the cache object
+// This is more performant that using Object.prototype.hasOwnProperty.call
+cache[exp] = parsedExpression;
+}
+return parsedExpression;
+case 'function':
+return exp;
+default:
+return noop;
+}
+};
+}];
+}
+/**
+* @ngdoc service
+* @name $q
+* @requires $rootScope
+*
+* @description
+* A promise/deferred implementation inspired by [Kris Kowal's Q](https://github.com/kriskowal/q).
+*
+* [The CommonJS Promise proposal](http://wiki.commonjs.org/wiki/Promises) describes a promise as an
+* interface for interacting with an object that represents the result of an action that is
+* performed asynchronously, and may or may not be finished at any given point in time.
+*
+* From the perspective of dealing with error handling, deferred and promise APIs are to
+* asynchronous programming what `try`, `catch` and `throw` keywords are to synchronous programming.
+*
+* ```js
+*   // for the purpose of this example let's assume that variables `$q`, `scope` and `okToGreet`
+*   // are available in the current lexical scope (they could have been injected or passed in).
+*
+*   function asyncGreet(name) {
+*     var deferred = $q.defer();
+*
+*     setTimeout(function() {
+*       // since this fn executes async in a future turn of the event loop, we need to wrap
+*       // our code into an $apply call so that the model changes are properly observed.
+*       scope.$apply(function() {
+*         deferred.notify('About to greet ' + name + '.');
+*
+*         if (okToGreet(name)) {
+*           deferred.resolve('Hello, ' + name + '!');
+*         } else {
+*           deferred.reject('Greeting ' + name + ' is not allowed.');
+*         }
+*       });
+*     }, 1000);
+*
+*     return deferred.promise;
+*   }
+*
+*   var promise = asyncGreet('Robin Hood');
+*   promise.then(function(greeting) {
+*     alert('Success: ' + greeting);
+*   }, function(reason) {
+*     alert('Failed: ' + reason);
+*   }, function(update) {
+*     alert('Got notification: ' + update);
+*   });
+* ```
+*
+* At first it might not be obvious why this extra complexity is worth the trouble. The payoff
+* comes in the way of guarantees that promise and deferred APIs make, see
+* https://github.com/kriskowal/uncommonjs/blob/master/promises/specification.md.
+*
+* Additionally the promise api allows for composition that is very hard to do with the
+* traditional callback ([CPS](http://en.wikipedia.org/wiki/Continuation-passing_style)) approach.
+* For more on this please see the [Q documentation](https://github.com/kriskowal/q) especially the
+* section on serial or parallel joining of promises.
+*
+*
+* # The Deferred API
+*
+* A new instance of deferred is constructed by calling `$q.defer()`.
+*
+* The purpose of the deferred object is to expose the associated Promise instance as well as APIs
+* that can be used for signaling the successful or unsuccessful completion, as well as the status
+* of the task.
+*
+* **Methods**
+*
+* - `resolve(value)` – resolves the derived promise with the `value`. If the value is a rejection
+*   constructed via `$q.reject`, the promise will be rejected instead.
+* - `reject(reason)` – rejects the derived promise with the `reason`. This is equivalent to
+*   resolving it with a rejection constructed via `$q.reject`.
+* - `notify(value)` - provides updates on the status of the promise's execution. This may be called
+*   multiple times before the promise is either resolved or rejected.
+*
+* **Properties**
+*
+* - promise – `{Promise}` – promise object associated with this deferred.
+*
+*
+* # The Promise API
+*
+* A new promise instance is created when a deferred instance is created and can be retrieved by
+* calling `deferred.promise`.
+*
+* The purpose of the promise object is to allow for interested parties to get access to the result
+* of the deferred task when it completes.
+*
+* **Methods**
+*
+* - `then(successCallback, errorCallback, notifyCallback)` – regardless of when the promise was or
+*   will be resolved or rejected, `then` calls one of the success or error callbacks asynchronously
+*   as soon as the result is available. The callbacks are called with a single argument: the result
+*   or rejection reason. Additionally, the notify callback may be called zero or more times to
+*   provide a progress indication, before the promise is resolved or rejected.
+*
+*   This method *returns a new promise* which is resolved or rejected via the return value of the
+*   `successCallback`, `errorCallback`. It also notifies via the return value of the
+*   `notifyCallback` method. The promise can not be resolved or rejected from the notifyCallback
+*   method.
+*
+* - `catch(errorCallback)` – shorthand for `promise.then(null, errorCallback)`
+*
+* - `finally(callback)` – allows you to observe either the fulfillment or rejection of a promise,
+*   but to do so without modifying the final value. This is useful to release resources or do some
+*   clean-up that needs to be done whether the promise was rejected or resolved. See the [full
+*   specification](https://github.com/kriskowal/q/wiki/API-Reference#promisefinallycallback) for
+*   more information.
+*
+*   Because `finally` is a reserved word in JavaScript and reserved keywords are not supported as
+*   property names by ES3, you'll need to invoke the method like `promise['finally'](callback)` to
+*   make your code IE8 and Android 2.x compatible.
+*
+* # Chaining promises
+*
+* Because calling the `then` method of a promise returns a new derived promise, it is easily
+* possible to create a chain of promises:
+*
+* ```js
+*   promiseB = promiseA.then(function(result) {
+*     return result + 1;
+*   });
+*
+*   // promiseB will be resolved immediately after promiseA is resolved and its value
+*   // will be the result of promiseA incremented by 1
+* ```
+*
+* It is possible to create chains of any length and since a promise can be resolved with another
+* promise (which will defer its resolution further), it is possible to pause/defer resolution of
+* the promises at any point in the chain. This makes it possible to implement powerful APIs like
+* $http's response interceptors.
+*
+*
+* # Differences between Kris Kowal's Q and $q
+*
+*  There are two main differences:
+*
+* - $q is integrated with the {@link ng.$rootScope.Scope} Scope model observation
+*   mechanism in angular, which means faster propagation of resolution or rejection into your
+*   models and avoiding unnecessary browser repaints, which would result in flickering UI.
+* - Q has many more features than $q, but that comes at a cost of bytes. $q is tiny, but contains
+*   all the important functionality needed for common async tasks.
+*
+*  # Testing
+*
+*  ```js
+*    it('should simulate promise', inject(function($q, $rootScope) {
+*      var deferred = $q.defer();
+*      var promise = deferred.promise;
+*      var resolvedValue;
+*
+*      promise.then(function(value) { resolvedValue = value; });
+*      expect(resolvedValue).toBeUndefined();
+*
+*      // Simulate resolving of promise
+*      deferred.resolve(123);
+*      // Note that the 'then' function does not get called synchronously.
+*      // This is because we want the promise API to always be async, whether or not
+*      // it got called synchronously or asynchronously.
+*      expect(resolvedValue).toBeUndefined();
+*
+*      // Propagate promise resolution to 'then' functions using $apply().
+*      $rootScope.$apply();
+*      expect(resolvedValue).toEqual(123);
+*    }));
+*  ```
+*/
+function $QProvider() {
+this.$get = ['$rootScope', '$exceptionHandler', function($rootScope, $exceptionHandler) {
+return qFactory(function(callback) {
+$rootScope.$evalAsync(callback);
+}, $exceptionHandler);
+}];
+}
+/**
+* Constructs a promise manager.
+*
+* @param {function(Function)} nextTick Function for executing functions in the next turn.
+* @param {function(...*)} exceptionHandler Function into which unexpected exceptions are passed for
+*     debugging purposes.
+* @returns {object} Promise manager.
+*/
+function qFactory(nextTick, exceptionHandler) {
+/**
+* @ngdoc method
+* @name $q#defer
+* @function
+*
+* @description
+* Creates a `Deferred` object which represents a task which will finish in the future.
+*
+* @returns {Deferred} Returns a new instance of deferred.
+*/
+var defer = function() {
+var pending = [],
+value, deferred;
+deferred = {
+resolve: function(val) {
+if (pending) {
+var callbacks = pending;
+pending = undefined;
+value = ref(val);
+if (callbacks.length) {
+nextTick(function() {
+var callback;
+for (var i = 0, ii = callbacks.length; i < ii; i++) {
+callback = callbacks[i];
+value.then(callback[0], callback[1], callback[2]);
+}
+});
+}
+}
+},
+reject: function(reason) {
+deferred.resolve(createInternalRejectedPromise(reason));
+},
+notify: function(progress) {
+if (pending) {
+var callbacks = pending;
+if (pending.length) {
+nextTick(function() {
+var callback;
+for (var i = 0, ii = callbacks.length; i < ii; i++) {
+callback = callbacks[i];
+callback[2](progress);
+}
+});
+}
+}
+},
+promise: {
+then: function(callback, errback, progressback) {
+var result = defer();
+var wrappedCallback = function(value) {
+try {
+result.resolve((isFunction(callback) ? callback : defaultCallback)(value));
+} catch(e) {
+result.reject(e);
+exceptionHandler(e);
+}
+};
+var wrappedErrback = function(reason) {
+try {
+result.resolve((isFunction(errback) ? errback : defaultErrback)(reason));
+} catch(e) {
+result.reject(e);
+exceptionHandler(e);
+}
+};
+var wrappedProgressback = function(progress) {
+try {
+result.notify((isFunction(progressback) ? progressback : defaultCallback)(progress));
+} catch(e) {
+exceptionHandler(e);
+}
+};
+if (pending) {
+pending.push([wrappedCallback, wrappedErrback, wrappedProgressback]);
+} else {
+value.then(wrappedCallback, wrappedErrback, wrappedProgressback);
+}
+return result.promise;
+},
+"catch": function(callback) {
+return this.then(null, callback);
+},
+"finally": function(callback) {
+function makePromise(value, resolved) {
+var result = defer();
+if (resolved) {
+result.resolve(value);
+} else {
+result.reject(value);
+}
+return result.promise;
+}
+function handleCallback(value, isResolved) {
+var callbackOutput = null;
+try {
+callbackOutput = (callback ||defaultCallback)();
+} catch(e) {
+return makePromise(e, false);
+}
+if (callbackOutput && isFunction(callbackOutput.then)) {
+return callbackOutput.then(function() {
+return makePromise(value, isResolved);
+}, function(error) {
+return makePromise(error, false);
+});
+} else {
+return makePromise(value, isResolved);
+}
+}
+return this.then(function(value) {
+return handleCallback(value, true);
+}, function(error) {
+return handleCallback(error, false);
+});
+}
+}
+};
+return deferred;
+};
+var ref = function(value) {
+if (value && isFunction(value.then)) return value;
+return {
+then: function(callback) {
+var result = defer();
+nextTick(function() {
+result.resolve(callback(value));
+});
+return result.promise;
+}
+};
+};
+/**
+* @ngdoc method
+* @name $q#reject
+* @function
+*
+* @description
+* Creates a promise that is resolved as rejected with the specified `reason`. This api should be
+* used to forward rejection in a chain of promises. If you are dealing with the last promise in
+* a promise chain, you don't need to worry about it.
+*
+* When comparing deferreds/promises to the familiar behavior of try/catch/throw, think of
+* `reject` as the `throw` keyword in JavaScript. This also means that if you "catch" an error via
+* a promise error callback and you want to forward the error to the promise derived from the
+* current promise, you have to "rethrow" the error by returning a rejection constructed via
+* `reject`.
+*
+* ```js
+*   promiseB = promiseA.then(function(result) {
+*     // success: do something and resolve promiseB
+*     //          with the old or a new result
+*     return result;
+*   }, function(reason) {
+*     // error: handle the error if possible and
+*     //        resolve promiseB with newPromiseOrValue,
+*     //        otherwise forward the rejection to promiseB
+*     if (canHandle(reason)) {
+*      // handle the error and recover
+*      return newPromiseOrValue;
+*     }
+*     return $q.reject(reason);
+*   });
+* ```
+*
+* @param {*} reason Constant, message, exception or an object representing the rejection reason.
+* @returns {Promise} Returns a promise that was already resolved as rejected with the `reason`.
+*/
+var reject = function(reason) {
+var result = defer();
+result.reject(reason);
+return result.promise;
+};
+var createInternalRejectedPromise = function(reason) {
+return {
+then: function(callback, errback) {
+var result = defer();
+nextTick(function() {
+try {
+result.resolve((isFunction(errback) ? errback : defaultErrback)(reason));
+} catch(e) {
+result.reject(e);
+exceptionHandler(e);
+}
+});
+return result.promise;
+}
+};
+};
+/**
+* @ngdoc method
+* @name $q#when
+* @function
+*
+* @description
+* Wraps an object that might be a value or a (3rd party) then-able promise into a $q promise.
+* This is useful when you are dealing with an object that might or might not be a promise, or if
+* the promise comes from a source that can't be trusted.
+*
+* @param {*} value Value or a promise
+* @returns {Promise} Returns a promise of the passed value or promise
+*/
+var when = function(value, callback, errback, progressback) {
+var result = defer(),
+done;
+var wrappedCallback = function(value) {
+try {
+return (isFunction(callback) ? callback : defaultCallback)(value);
+} catch (e) {
+exceptionHandler(e);
+return reject(e);
+}
+};
+var wrappedErrback = function(reason) {
+try {
+return (isFunction(errback) ? errback : defaultErrback)(reason);
+} catch (e) {
+exceptionHandler(e);
+return reject(e);
+}
+};
+var wrappedProgressback = function(progress) {
+try {
+return (isFunction(progressback) ? progressback : defaultCallback)(progress);
+} catch (e) {
+exceptionHandler(e);
+}
+};
+nextTick(function() {
+ref(value).then(function(value) {
+if (done) return;
+done = true;
+result.resolve(ref(value).then(wrappedCallback, wrappedErrback, wrappedProgressback));
+}, function(reason) {
+if (done) return;
+done = true;
+result.resolve(wrappedErrback(reason));
+}, function(progress) {
+if (done) return;
+result.notify(wrappedProgressback(progress));
+});
+});
+return result.promise;
+};
+function defaultCallback(value) {
+return value;
+}
+function defaultErrback(reason) {
+return reject(reason);
+}
+/**
+* @ngdoc method
+* @name $q#all
+* @function
+*
+* @description
+* Combines multiple promises into a single promise that is resolved when all of the input
+* promises are resolved.
+*
+* @param {Array.<Promise>|Object.<Promise>} promises An array or hash of promises.
+* @returns {Promise} Returns a single promise that will be resolved with an array/hash of values,
+*   each value corresponding to the promise at the same index/key in the `promises` array/hash.
+*   If any of the promises is resolved with a rejection, this resulting promise will be rejected
+*   with the same rejection value.
+*/
+function all(promises) {
+var deferred = defer(),
+counter = 0,
+results = isArray(promises) ? [] : {};
+forEach(promises, function(promise, key) {
+counter++;
+ref(promise).then(function(value) {
+if (results.hasOwnProperty(key)) return;
+results[key] = value;
+if (!(--counter)) deferred.resolve(results);
+}, function(reason) {
+if (results.hasOwnProperty(key)) return;
+deferred.reject(reason);
+});
+});
+if (counter === 0) {
+deferred.resolve(results);
+}
+return deferred.promise;
+}
+return {
+defer: defer,
+reject: reject,
+when: when,
+all: all
+};
+}
+function $$RAFProvider(){ //rAF
+this.$get = ['$window', '$timeout', function($window, $timeout) {
+var requestAnimationFrame = $window.requestAnimationFrame ||
+$window.webkitRequestAnimationFrame ||
+$window.mozRequestAnimationFrame;
+var cancelAnimationFrame = $window.cancelAnimationFrame ||
+$window.webkitCancelAnimationFrame ||
+$window.mozCancelAnimationFrame ||
+$window.webkitCancelRequestAnimationFrame;
+var rafSupported = !!requestAnimationFrame;
+var raf = rafSupported
+? function(fn) {
+var id = requestAnimationFrame(fn);
+return function() {
+cancelAnimationFrame(id);
+};
+}
+: function(fn) {
+var timer = $timeout(fn, 16.66, false); // 1000 / 60 = 16.666
+return function() {
+$timeout.cancel(timer);
+};
+};
+raf.supported = rafSupported;
+return raf;
+}];
+}
+/**
+* DESIGN NOTES
+*
+* The design decisions behind the scope are heavily favored for speed and memory consumption.
+*
+* The typical use of scope is to watch the expressions, which most of the time return the same
+* value as last time so we optimize the operation.
+*
+* Closures construction is expensive in terms of speed as well as memory:
+*   - No closures, instead use prototypical inheritance for API
+*   - Internal state needs to be stored on scope directly, which means that private state is
+*     exposed as $$____ properties
+*
+* Loop operations are optimized by using while(count--) { ... }
+*   - this means that in order to keep the same order of execution as addition we have to add
+*     items to the array at the beginning (shift) instead of at the end (push)
+*
+* Child scopes are created and removed often
+*   - Using an array would be slow since inserts in middle are expensive so we use linked list
+*
+* There are few watches then a lot of observers. This is why you don't want the observer to be
+* implemented in the same way as watch. Watch requires return of initialization function which
+* are expensive to construct.
+*/
+/**
+* @ngdoc provider
+* @name $rootScopeProvider
+* @description
+*
+* Provider for the $rootScope service.
+*/
+/**
+* @ngdoc method
+* @name $rootScopeProvider#digestTtl
+* @description
+*
+* Sets the number of `$digest` iterations the scope should attempt to execute before giving up and
+* assuming that the model is unstable.
+*
+* The current default is 10 iterations.
+*
+* In complex applications it's possible that the dependencies between `$watch`s will result in
+* several digest iterations. However if an application needs more than the default 10 digest
+* iterations for its model to stabilize then you should investigate what is causing the model to
+* continuously change during the digest.
+*
+* Increasing the TTL could have performance implications, so you should not change it without
+* proper justification.
+*
+* @param {number} limit The number of digest iterations.
+*/
+/**
+* @ngdoc service
+* @name $rootScope
+* @description
+*
+* Every application has a single root {@link ng.$rootScope.Scope scope}.
+* All other scopes are descendant scopes of the root scope. Scopes provide separation
+* between the model and the view, via a mechanism for watching the model for changes.
+* They also provide an event emission/broadcast and subscription facility. See the
+* {@link guide/scope developer guide on scopes}.
+*/
+function $RootScopeProvider(){
+var TTL = 10;
+var $rootScopeMinErr = minErr('$rootScope');
+var lastDirtyWatch = null;
+this.digestTtl = function(value) {
+if (arguments.length) {
+TTL = value;
+}
+return TTL;
+};
+this.$get = ['$injector', '$exceptionHandler', '$parse', '$browser',
+function( $injector,   $exceptionHandler,   $parse,   $browser) {
+/**
+* @ngdoc type
+* @name $rootScope.Scope
+*
+* @description
+* A root scope can be retrieved using the {@link ng.$rootScope $rootScope} key from the
+* {@link auto.$injector $injector}. Child scopes are created using the
+* {@link ng.$rootScope.Scope#$new $new()} method. (Most scopes are created automatically when
+* compiled HTML template is executed.)
+*
+* Here is a simple scope snippet to show how you can interact with the scope.
+* ```html
+* <file src="./test/ng/rootScopeSpec.js" tag="docs1" />
+* ```
+*
+* # Inheritance
+* A scope can inherit from a parent scope, as in this example:
+* ```js
+var parent = $rootScope;
+var child = parent.$new();
+parent.salutation = "Hello";
+child.name = "World";
+expect(child.salutation).toEqual('Hello');
+child.salutation = "Welcome";
+expect(child.salutation).toEqual('Welcome');
+expect(parent.salutation).toEqual('Hello');
+* ```
+*
+*
+* @param {Object.<string, function()>=} providers Map of service factory which need to be
+*                                       provided for the current scope. Defaults to {@link ng}.
+* @param {Object.<string, *>=} instanceCache Provides pre-instantiated services which should
+*                              append/override services provided by `providers`. This is handy
+*                              when unit-testing and having the need to override a default
+*                              service.
+* @returns {Object} Newly created scope.
+*
+*/
+function Scope() {
+this.$id = nextUid();
+this.$$phase = this.$parent = this.$$watchers =
+this.$$nextSibling = this.$$prevSibling =
+this.$$childHead = this.$$childTail = null;
+this['this'] = this.$root =  this;
+this.$$destroyed = false;
+this.$$asyncQueue = [];
+this.$$postDigestQueue = [];
+this.$$listeners = {};
+this.$$listenerCount = {};
+this.$$isolateBindings = {};
+}
+/**
+* @ngdoc property
+* @name $rootScope.Scope#$id
+* @returns {number} Unique scope ID (monotonically increasing alphanumeric sequence) useful for
+*   debugging.
+*/
+Scope.prototype = {
+constructor: Scope,
+/**
+* @ngdoc method
+* @name $rootScope.Scope#$new
+* @function
+*
+* @description
+* Creates a new child {@link ng.$rootScope.Scope scope}.
+*
+* The parent scope will propagate the {@link ng.$rootScope.Scope#$digest $digest()} and
+* {@link ng.$rootScope.Scope#$digest $digest()} events. The scope can be removed from the
+* scope hierarchy using {@link ng.$rootScope.Scope#$destroy $destroy()}.
+*
+* {@link ng.$rootScope.Scope#$destroy $destroy()} must be called on a scope when it is
+* desired for the scope and its child scopes to be permanently detached from the parent and
+* thus stop participating in model change detection and listener notification by invoking.
+*
+* @param {boolean} isolate If true, then the scope does not prototypically inherit from the
+*         parent scope. The scope is isolated, as it can not see parent scope properties.
+*         When creating widgets, it is useful for the widget to not accidentally read parent
+*         state.
+*
+* @returns {Object} The newly created child scope.
+*
+*/
+$new: function(isolate) {
+var ChildScope,
+child;
+if (isolate) {
+child = new Scope();
+child.$root = this.$root;
+// ensure that there is just one async queue per $rootScope and its children
+child.$$asyncQueue = this.$$asyncQueue;
+child.$$postDigestQueue = this.$$postDigestQueue;
+} else {
+ChildScope = function() {}; // should be anonymous; This is so that when the minifier munges
+// the name it does not become random set of chars. This will then show up as class
+// name in the web inspector.
+ChildScope.prototype = this;
+child = new ChildScope();
+child.$id = nextUid();
+}
+child['this'] = child;
+child.$$listeners = {};
+child.$$listenerCount = {};
+child.$parent = this;
+child.$$watchers = child.$$nextSibling = child.$$childHead = child.$$childTail = null;
+child.$$prevSibling = this.$$childTail;
+if (this.$$childHead) {
+this.$$childTail.$$nextSibling = child;
+this.$$childTail = child;
+} else {
+this.$$childHead = this.$$childTail = child;
+}
+return child;
+},
+/**
+* @ngdoc method
+* @name $rootScope.Scope#$watch
+* @function
+*
+* @description
+* Registers a `listener` callback to be executed whenever the `watchExpression` changes.
+*
+* - The `watchExpression` is called on every call to {@link ng.$rootScope.Scope#$digest
+*   $digest()} and should return the value that will be watched. (Since
+*   {@link ng.$rootScope.Scope#$digest $digest()} reruns when it detects changes the
+*   `watchExpression` can execute multiple times per
+*   {@link ng.$rootScope.Scope#$digest $digest()} and should be idempotent.)
+* - The `listener` is called only when the value from the current `watchExpression` and the
+*   previous call to `watchExpression` are not equal (with the exception of the initial run,
+*   see below). The inequality is determined according to
+*   {@link angular.equals} function. To save the value of the object for later comparison,
+*   the {@link angular.copy} function is used. It also means that watching complex options
+*   will have adverse memory and performance implications.
+* - The watch `listener` may change the model, which may trigger other `listener`s to fire.
+*   This is achieved by rerunning the watchers until no changes are detected. The rerun
+*   iteration limit is 10 to prevent an infinite loop deadlock.
+*
+*
+* If you want to be notified whenever {@link ng.$rootScope.Scope#$digest $digest} is called,
+* you can register a `watchExpression` function with no `listener`. (Since `watchExpression`
+* can execute multiple times per {@link ng.$rootScope.Scope#$digest $digest} cycle when a
+* change is detected, be prepared for multiple calls to your listener.)
+*
+* After a watcher is registered with the scope, the `listener` fn is called asynchronously
+* (via {@link ng.$rootScope.Scope#$evalAsync $evalAsync}) to initialize the
+* watcher. In rare cases, this is undesirable because the listener is called when the result
+* of `watchExpression` didn't change. To detect this scenario within the `listener` fn, you
+* can compare the `newVal` and `oldVal`. If these two values are identical (`===`) then the
+* listener was called due to initialization.
+*
+* The example below contains an illustration of using a function as your $watch listener
+*
+*
+* # Example
+* ```js
+// let's assume that scope was dependency injected as the $rootScope
+var scope = $rootScope;
+scope.name = 'misko';
+scope.counter = 0;
+expect(scope.counter).toEqual(0);
+scope.$watch('name', function(newValue, oldValue) {
+scope.counter = scope.counter + 1;
+});
+expect(scope.counter).toEqual(0);
+scope.$digest();
+// no variable change
+expect(scope.counter).toEqual(0);
+scope.name = 'adam';
+scope.$digest();
+expect(scope.counter).toEqual(1);
+// Using a listener function
+var food;
+scope.foodCounter = 0;
+expect(scope.foodCounter).toEqual(0);
+scope.$watch(
+// This is the listener function
+function() { return food; },
+// This is the change handler
+function(newValue, oldValue) {
+if ( newValue !== oldValue ) {
+// Only increment the counter if the value changed
+scope.foodCounter = scope.foodCounter + 1;
+}
+}
+);
+// No digest has been run so the counter will be zero
+expect(scope.foodCounter).toEqual(0);
+// Run the digest but since food has not changed count will still be zero
+scope.$digest();
+expect(scope.foodCounter).toEqual(0);
+// Update food and run digest.  Now the counter will increment
+food = 'cheeseburger';
+scope.$digest();
+expect(scope.foodCounter).toEqual(1);
+* ```
+*
+*
+*
+* @param {(function()|string)} watchExpression Expression that is evaluated on each
+*    {@link ng.$rootScope.Scope#$digest $digest} cycle. A change in the return value triggers
+*    a call to the `listener`.
+*
+*    - `string`: Evaluated as {@link guide/expression expression}
+*    - `function(scope)`: called with current `scope` as a parameter.
+* @param {(function()|string)=} listener Callback called whenever the return value of
+*   the `watchExpression` changes.
+*
+*    - `string`: Evaluated as {@link guide/expression expression}
+*    - `function(newValue, oldValue, scope)`: called with current and previous values as
+*      parameters.
+*
+* @param {boolean=} objectEquality Compare object for equality rather than for reference.
+* @returns {function()} Returns a deregistration function for this listener.
+*/
+$watch: function(watchExp, listener, objectEquality) {
+var scope = this,
+get = compileToFn(watchExp, 'watch'),
+array = scope.$$watchers,
+watcher = {
+fn: listener,
+last: initWatchVal,
+get: get,
+exp: watchExp,
+eq: !!objectEquality
+};
+lastDirtyWatch = null;
+// in the case user pass string, we need to compile it, do we really need this ?
+if (!isFunction(listener)) {
+var listenFn = compileToFn(listener || noop, 'listener');
+watcher.fn = function(newVal, oldVal, scope) {listenFn(scope);};
+}
+if (typeof watchExp == 'string' && get.constant) {
+var originalFn = watcher.fn;
+watcher.fn = function(newVal, oldVal, scope) {
+originalFn.call(this, newVal, oldVal, scope);
+arrayRemove(array, watcher);
+};
+}
+if (!array) {
+array = scope.$$watchers = [];
+}
+// we use unshift since we use a while loop in $digest for speed.
+// the while loop reads in reverse order.
+array.unshift(watcher);
+return function() {
+arrayRemove(array, watcher);
+lastDirtyWatch = null;
+};
+},
+/**
+* @ngdoc method
+* @name $rootScope.Scope#$watchCollection
+* @function
+*
+* @description
+* Shallow watches the properties of an object and fires whenever any of the properties change
+* (for arrays, this implies watching the array items; for object maps, this implies watching
+* the properties). If a change is detected, the `listener` callback is fired.
+*
+* - The `obj` collection is observed via standard $watch operation and is examined on every
+*   call to $digest() to see if any items have been added, removed, or moved.
+* - The `listener` is called whenever anything within the `obj` has changed. Examples include
+*   adding, removing, and moving items belonging to an object or array.
+*
+*
+* # Example
+* ```js
+$scope.names = ['igor', 'matias', 'misko', 'james'];
+$scope.dataCount = 4;
+$scope.$watchCollection('names', function(newNames, oldNames) {
+$scope.dataCount = newNames.length;
+});
+expect($scope.dataCount).toEqual(4);
+$scope.$digest();
+//still at 4 ... no changes
+expect($scope.dataCount).toEqual(4);
+$scope.names.pop();
+$scope.$digest();
+//now there's been a change
+expect($scope.dataCount).toEqual(3);
+* ```
+*
+*
+* @param {string|function(scope)} obj Evaluated as {@link guide/expression expression}. The
+*    expression value should evaluate to an object or an array which is observed on each
+*    {@link ng.$rootScope.Scope#$digest $digest} cycle. Any shallow change within the
+*    collection will trigger a call to the `listener`.
+*
+* @param {function(newCollection, oldCollection, scope)} listener a callback function called
+*    when a change is detected.
+*    - The `newCollection` object is the newly modified data obtained from the `obj` expression
+*    - The `oldCollection` object is a copy of the former collection data.
+*      Due to performance considerations, the`oldCollection` value is computed only if the
+*      `listener` function declares two or more arguments.
+*    - The `scope` argument refers to the current scope.
+*
+* @returns {function()} Returns a de-registration function for this listener. When the
+*    de-registration function is executed, the internal watch operation is terminated.
+*/
+$watchCollection: function(obj, listener) {
+var self = this;
+// the current value, updated on each dirty-check run
+var newValue;
+// a shallow copy of the newValue from the last dirty-check run,
+// updated to match newValue during dirty-check run
+var oldValue;
+// a shallow copy of the newValue from when the last change happened
+var veryOldValue;
+// only track veryOldValue if the listener is asking for it
+var trackVeryOldValue = (listener.length > 1);
+var changeDetected = 0;
+var objGetter = $parse(obj);
+var internalArray = [];
+var internalObject = {};
+var initRun = true;
+var oldLength = 0;
+function $watchCollectionWatch() {
+newValue = objGetter(self);
+var newLength, key;
+if (!isObject(newValue)) { // if primitive
+if (oldValue !== newValue) {
+oldValue = newValue;
+changeDetected++;
+}
+} else if (isArrayLike(newValue)) {
+if (oldValue !== internalArray) {
+// we are transitioning from something which was not an array into array.
+oldValue = internalArray;
+oldLength = oldValue.length = 0;
+changeDetected++;
+}
+newLength = newValue.length;
+if (oldLength !== newLength) {
+// if lengths do not match we need to trigger change notification
+changeDetected++;
+oldValue.length = oldLength = newLength;
+}
+// copy the items to oldValue and look for changes.
+for (var i = 0; i < newLength; i++) {
+var bothNaN = (oldValue[i] !== oldValue[i]) &&
+(newValue[i] !== newValue[i]);
+if (!bothNaN && (oldValue[i] !== newValue[i])) {
+changeDetected++;
+oldValue[i] = newValue[i];
+}
+}
+} else {
+if (oldValue !== internalObject) {
+// we are transitioning from something which was not an object into object.
+oldValue = internalObject = {};
+oldLength = 0;
+changeDetected++;
+}
+// copy the items to oldValue and look for changes.
+newLength = 0;
+for (key in newValue) {
+if (newValue.hasOwnProperty(key)) {
+newLength++;
+if (oldValue.hasOwnProperty(key)) {
+if (oldValue[key] !== newValue[key]) {
+changeDetected++;
+oldValue[key] = newValue[key];
+}
+} else {
+oldLength++;
+oldValue[key] = newValue[key];
+changeDetected++;
+}
+}
+}
+if (oldLength > newLength) {
+// we used to have more keys, need to find them and destroy them.
+changeDetected++;
+for(key in oldValue) {
+if (oldValue.hasOwnProperty(key) && !newValue.hasOwnProperty(key)) {
+oldLength--;
+delete oldValue[key];
+}
+}
+}
+}
+return changeDetected;
+}
+function $watchCollectionAction() {
+if (initRun) {
+initRun = false;
+listener(newValue, newValue, self);
+} else {
+listener(newValue, veryOldValue, self);
+}
+// make a copy for the next time a collection is changed
+if (trackVeryOldValue) {
+if (!isObject(newValue)) {
+//primitive
+veryOldValue = newValue;
+} else if (isArrayLike(newValue)) {
+veryOldValue = new Array(newValue.length);
+for (var i = 0; i < newValue.length; i++) {
+veryOldValue[i] = newValue[i];
+}
+} else { // if object
+veryOldValue = {};
+for (var key in newValue) {
+if (hasOwnProperty.call(newValue, key)) {
+veryOldValue[key] = newValue[key];
+}
+}
+}
+}
+}
+return this.$watch($watchCollectionWatch, $watchCollectionAction);
+},
+/**
+* @ngdoc method
+* @name $rootScope.Scope#$digest
+* @function
+*
+* @description
+* Processes all of the {@link ng.$rootScope.Scope#$watch watchers} of the current scope and
+* its children. Because a {@link ng.$rootScope.Scope#$watch watcher}'s listener can change
+* the model, the `$digest()` keeps calling the {@link ng.$rootScope.Scope#$watch watchers}
+* until no more listeners are firing. This means that it is possible to get into an infinite
+* loop. This function will throw `'Maximum iteration limit exceeded.'` if the number of
+* iterations exceeds 10.
+*
+* Usually, you don't call `$digest()` directly in
+* {@link ng.directive:ngController controllers} or in
+* {@link ng.$compileProvider#directive directives}.
+* Instead, you should call {@link ng.$rootScope.Scope#$apply $apply()} (typically from within
+* a {@link ng.$compileProvider#directive directives}), which will force a `$digest()`.
+*
+* If you want to be notified whenever `$digest()` is called,
+* you can register a `watchExpression` function with
+* {@link ng.$rootScope.Scope#$watch $watch()} with no `listener`.
+*
+* In unit tests, you may need to call `$digest()` to simulate the scope life cycle.
+*
+* # Example
+* ```js
+var scope = ...;
+scope.name = 'misko';
+scope.counter = 0;
+expect(scope.counter).toEqual(0);
+scope.$watch('name', function(newValue, oldValue) {
+scope.counter = scope.counter + 1;
+});
+expect(scope.counter).toEqual(0);
+scope.$digest();
+// no variable change
+expect(scope.counter).toEqual(0);
+scope.name = 'adam';
+scope.$digest();
+expect(scope.counter).toEqual(1);
+* ```
+*
+*/
+$digest: function() {
+var watch, value, last,
+watchers,
+asyncQueue = this.$$asyncQueue,
+postDigestQueue = this.$$postDigestQueue,
+length,
+dirty, ttl = TTL,
+next, current, target = this,
+watchLog = [],
+logIdx, logMsg, asyncTask;
+beginPhase('$digest');
+lastDirtyWatch = null;
+do { // "while dirty" loop
+dirty = false;
+current = target;
+while(asyncQueue.length) {
+try {
+asyncTask = asyncQueue.shift();
+asyncTask.scope.$eval(asyncTask.expression);
+} catch (e) {
+clearPhase();
+$exceptionHandler(e);
+}
+lastDirtyWatch = null;
+}
+traverseScopesLoop:
+do { // "traverse the scopes" loop
+if ((watchers = current.$$watchers)) {
+// process our watches
+length = watchers.length;
+while (length--) {
+try {
+watch = watchers[length];
+// Most common watches are on primitives, in which case we can short
+// circuit it with === operator, only when === fails do we use .equals
+if (watch) {
+if ((value = watch.get(current)) !== (last = watch.last) &&
+!(watch.eq
+? equals(value, last)
+: (typeof value == 'number' && typeof last == 'number'
+&& isNaN(value) && isNaN(last)))) {
+dirty = true;
+lastDirtyWatch = watch;
+watch.last = watch.eq ? copy(value) : value;
+watch.fn(value, ((last === initWatchVal) ? value : last), current);
+if (ttl < 5) {
+logIdx = 4 - ttl;
+if (!watchLog[logIdx]) watchLog[logIdx] = [];
+logMsg = (isFunction(watch.exp))
+? 'fn: ' + (watch.exp.name || watch.exp.toString())
+: watch.exp;
+logMsg += '; newVal: ' + toJson(value) + '; oldVal: ' + toJson(last);
+watchLog[logIdx].push(logMsg);
+}
+} else if (watch === lastDirtyWatch) {
+// If the most recently dirty watcher is now clean, short circuit since the remaining watchers
+// have already been tested.
+dirty = false;
+break traverseScopesLoop;
+}
+}
+} catch (e) {
+clearPhase();
+$exceptionHandler(e);
+}
+}
+}
+// Insanity Warning: scope depth-first traversal
+// yes, this code is a bit crazy, but it works and we have tests to prove it!
+// this piece should be kept in sync with the traversal in $broadcast
+if (!(next = (current.$$childHead ||
+(current !== target && current.$$nextSibling)))) {
+while(current !== target && !(next = current.$$nextSibling)) {
+current = current.$parent;
+}
+}
+} while ((current = next));
+// `break traverseScopesLoop;` takes us to here
+if((dirty || asyncQueue.length) && !(ttl--)) {
+clearPhase();
+throw $rootScopeMinErr('infdig',
+'{0} $digest() iterations reached. Aborting!\n' +
+'Watchers fired in the last 5 iterations: {1}',
+TTL, toJson(watchLog));
+}
+} while (dirty || asyncQueue.length);
+clearPhase();
+while(postDigestQueue.length) {
+try {
+postDigestQueue.shift()();
+} catch (e) {
+$exceptionHandler(e);
+}
+}
+},
+/**
+* @ngdoc event
+* @name $rootScope.Scope#$destroy
+* @eventType broadcast on scope being destroyed
+*
+* @description
+* Broadcasted when a scope and its children are being destroyed.
+*
+* Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to
+* clean up DOM bindings before an element is removed from the DOM.
+*/
+/**
+* @ngdoc method
+* @name $rootScope.Scope#$destroy
+* @function
+*
+* @description
+* Removes the current scope (and all of its children) from the parent scope. Removal implies
+* that calls to {@link ng.$rootScope.Scope#$digest $digest()} will no longer
+* propagate to the current scope and its children. Removal also implies that the current
+* scope is eligible for garbage collection.
+*
+* The `$destroy()` is usually used by directives such as
+* {@link ng.directive:ngRepeat ngRepeat} for managing the
+* unrolling of the loop.
+*
+* Just before a scope is destroyed, a `$destroy` event is broadcasted on this scope.
+* Application code can register a `$destroy` event handler that will give it a chance to
+* perform any necessary cleanup.
+*
+* Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to
+* clean up DOM bindings before an element is removed from the DOM.
+*/
+$destroy: function() {
+// we can't destroy the root scope or a scope that has been already destroyed
+if (this.$$destroyed) return;
+var parent = this.$parent;
+this.$broadcast('$destroy');
+this.$$destroyed = true;
+if (this === $rootScope) return;
+forEach(this.$$listenerCount, bind(null, decrementListenerCount, this));
+if (parent.$$childHead == this) parent.$$childHead = this.$$nextSibling;
+if (parent.$$childTail == this) parent.$$childTail = this.$$prevSibling;
+if (this.$$prevSibling) this.$$prevSibling.$$nextSibling = this.$$nextSibling;
+if (this.$$nextSibling) this.$$nextSibling.$$prevSibling = this.$$prevSibling;
+// This is bogus code that works around Chrome's GC leak
+// see: https://github.com/angular/angular.js/issues/1313#issuecomment-10378451
+this.$parent = this.$$nextSibling = this.$$prevSibling = this.$$childHead =
+this.$$childTail = null;
+},
+/**
+* @ngdoc method
+* @name $rootScope.Scope#$eval
+* @function
+*
+* @description
+* Executes the `expression` on the current scope and returns the result. Any exceptions in
+* the expression are propagated (uncaught). This is useful when evaluating Angular
+* expressions.
+*
+* # Example
+* ```js
+var scope = ng.$rootScope.Scope();
+scope.a = 1;
+scope.b = 2;
+expect(scope.$eval('a+b')).toEqual(3);
+expect(scope.$eval(function(scope){ return scope.a + scope.b; })).toEqual(3);
+* ```
+*
+* @param {(string|function())=} expression An angular expression to be executed.
+*
+*    - `string`: execute using the rules as defined in  {@link guide/expression expression}.
+*    - `function(scope)`: execute the function with the current `scope` parameter.
+*
+* @param {(object)=} locals Local variables object, useful for overriding values in scope.
+* @returns {*} The result of evaluating the expression.
+*/
+$eval: function(expr, locals) {
+return $parse(expr)(this, locals);
+},
+/**
+* @ngdoc method
+* @name $rootScope.Scope#$evalAsync
+* @function
+*
+* @description
+* Executes the expression on the current scope at a later point in time.
+*
+* The `$evalAsync` makes no guarantees as to when the `expression` will be executed, only
+* that:
+*
+*   - it will execute after the function that scheduled the evaluation (preferably before DOM
+*     rendering).
+*   - at least one {@link ng.$rootScope.Scope#$digest $digest cycle} will be performed after
+*     `expression` execution.
+*
+* Any exceptions from the execution of the expression are forwarded to the
+* {@link ng.$exceptionHandler $exceptionHandler} service.
+*
+* __Note:__ if this function is called outside of a `$digest` cycle, a new `$digest` cycle
+* will be scheduled. However, it is encouraged to always call code that changes the model
+* from within an `$apply` call. That includes code evaluated via `$evalAsync`.
+*
+* @param {(string|function())=} expression An angular expression to be executed.
+*
+*    - `string`: execute using the rules as defined in {@link guide/expression expression}.
+*    - `function(scope)`: execute the function with the current `scope` parameter.
+*
+*/
+$evalAsync: function(expr) {
+// if we are outside of an $digest loop and this is the first time we are scheduling async
+// task also schedule async auto-flush
+if (!$rootScope.$$phase && !$rootScope.$$asyncQueue.length) {
+$browser.defer(function() {
+if ($rootScope.$$asyncQueue.length) {
+$rootScope.$digest();
+}
+});
+}
+this.$$asyncQueue.push({scope: this, expression: expr});
+},
+$$postDigest : function(fn) {
+this.$$postDigestQueue.push(fn);
+},
+/**
+* @ngdoc method
+* @name $rootScope.Scope#$apply
+* @function
+*
+* @description
+* `$apply()` is used to execute an expression in angular from outside of the angular
+* framework. (For example from browser DOM events, setTimeout, XHR or third party libraries).
+* Because we are calling into the angular framework we need to perform proper scope life
+* cycle of {@link ng.$exceptionHandler exception handling},
+* {@link ng.$rootScope.Scope#$digest executing watches}.
+*
+* ## Life cycle
+*
+* # Pseudo-Code of `$apply()`
+* ```js
+function $apply(expr) {
+try {
+return $eval(expr);
+} catch (e) {
+$exceptionHandler(e);
+} finally {
+$root.$digest();
+}
+}
+* ```
+*
+*
+* Scope's `$apply()` method transitions through the following stages:
+*
+* 1. The {@link guide/expression expression} is executed using the
+*    {@link ng.$rootScope.Scope#$eval $eval()} method.
+* 2. Any exceptions from the execution of the expression are forwarded to the
+*    {@link ng.$exceptionHandler $exceptionHandler} service.
+* 3. The {@link ng.$rootScope.Scope#$watch watch} listeners are fired immediately after the
+*    expression was executed using the {@link ng.$rootScope.Scope#$digest $digest()} method.
+*
+*
+* @param {(string|function())=} exp An angular expression to be executed.
+*
+*    - `string`: execute using the rules as defined in {@link guide/expression expression}.
+*    - `function(scope)`: execute the function with current `scope` parameter.
+*
+* @returns {*} The result of evaluating the expression.
+*/
+$apply: function(expr) {
+try {
+beginPhase('$apply');
+return this.$eval(expr);
+} catch (e) {
+$exceptionHandler(e);
+} finally {
+clearPhase();
+try {
+$rootScope.$digest();
+} catch (e) {
+$exceptionHandler(e);
+throw e;
+}
+}
+},
+/**
+* @ngdoc method
+* @name $rootScope.Scope#$on
+* @function
+*
+* @description
+* Listens on events of a given type. See {@link ng.$rootScope.Scope#$emit $emit} for
+* discussion of event life cycle.
+*
+* The event listener function format is: `function(event, args...)`. The `event` object
+* passed into the listener has the following attributes:
+*
+*   - `targetScope` - `{Scope}`: the scope on which the event was `$emit`-ed or
+*     `$broadcast`-ed.
+*   - `currentScope` - `{Scope}`: the current scope which is handling the event.
+*   - `name` - `{string}`: name of the event.
+*   - `stopPropagation` - `{function=}`: calling `stopPropagation` function will cancel
+*     further event propagation (available only for events that were `$emit`-ed).
+*   - `preventDefault` - `{function}`: calling `preventDefault` sets `defaultPrevented` flag
+*     to true.
+*   - `defaultPrevented` - `{boolean}`: true if `preventDefault` was called.
+*
+* @param {string} name Event name to listen on.
+* @param {function(event, ...args)} listener Function to call when the event is emitted.
+* @returns {function()} Returns a deregistration function for this listener.
+*/
+$on: function(name, listener) {
+var namedListeners = this.$$listeners[name];
+if (!namedListeners) {
+this.$$listeners[name] = namedListeners = [];
+}
+namedListeners.push(listener);
+var current = this;
+do {
+if (!current.$$listenerCount[name]) {
+current.$$listenerCount[name] = 0;
+}
+current.$$listenerCount[name]++;
+} while ((current = current.$parent));
+var self = this;
+return function() {
+namedListeners[indexOf(namedListeners, listener)] = null;
+decrementListenerCount(self, 1, name);
+};
+},
+/**
+* @ngdoc method
+* @name $rootScope.Scope#$emit
+* @function
+*
+* @description
+* Dispatches an event `name` upwards through the scope hierarchy notifying the
+* registered {@link ng.$rootScope.Scope#$on} listeners.
+*
+* The event life cycle starts at the scope on which `$emit` was called. All
+* {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get
+* notified. Afterwards, the event traverses upwards toward the root scope and calls all
+* registered listeners along the way. The event will stop propagating if one of the listeners
+* cancels it.
+*
+* Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed
+* onto the {@link ng.$exceptionHandler $exceptionHandler} service.
+*
+* @param {string} name Event name to emit.
+* @param {...*} args Optional one or more arguments which will be passed onto the event listeners.
+* @return {Object} Event object (see {@link ng.$rootScope.Scope#$on}).
+*/
+$emit: function(name, args) {
+var empty = [],
+namedListeners,
+scope = this,
+stopPropagation = false,
+event = {
+name: name,
+targetScope: scope,
+stopPropagation: function() {stopPropagation = true;},
+preventDefault: function() {
+event.defaultPrevented = true;
+},
+defaultPrevented: false
+},
+listenerArgs = concat([event], arguments, 1),
+i, length;
+do {
+namedListeners = scope.$$listeners[name] || empty;
+event.currentScope = scope;
+for (i=0, length=namedListeners.length; i<length; i++) {
+// if listeners were deregistered, defragment the array
+if (!namedListeners[i]) {
+namedListeners.splice(i, 1);
+i--;
+length--;
+continue;
+}
+try {
+//allow all listeners attached to the current scope to run
+namedListeners[i].apply(null, listenerArgs);
+} catch (e) {
+$exceptionHandler(e);
+}
+}
+//if any listener on the current scope stops propagation, prevent bubbling
+if (stopPropagation) return event;
+//traverse upwards
+scope = scope.$parent;
+} while (scope);
+return event;
+},
+/**
+* @ngdoc method
+* @name $rootScope.Scope#$broadcast
+* @function
+*
+* @description
+* Dispatches an event `name` downwards to all child scopes (and their children) notifying the
+* registered {@link ng.$rootScope.Scope#$on} listeners.
+*
+* The event life cycle starts at the scope on which `$broadcast` was called. All
+* {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get
+* notified. Afterwards, the event propagates to all direct and indirect scopes of the current
+* scope and calls all registered listeners along the way. The event cannot be canceled.
+*
+* Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed
+* onto the {@link ng.$exceptionHandler $exceptionHandler} service.
+*
+* @param {string} name Event name to broadcast.
+* @param {...*} args Optional one or more arguments which will be passed onto the event listeners.
+* @return {Object} Event object, see {@link ng.$rootScope.Scope#$on}
+*/
+$broadcast: function(name, args) {
+var target = this,
+current = target,
+next = target,
+event = {
+name: name,
+targetScope: target,
+preventDefault: function() {
+event.defaultPrevented = true;
+},
+defaultPrevented: false
+},
+listenerArgs = concat([event], arguments, 1),
+listeners, i, length;
+//down while you can, then up and next sibling or up and next sibling until back at root
+while ((current = next)) {
+event.currentScope = current;
+listeners = current.$$listeners[name] || [];
+for (i=0, length = listeners.length; i<length; i++) {
+// if listeners were deregistered, defragment the array
+if (!listeners[i]) {
+listeners.splice(i, 1);
+i--;
+length--;
+continue;
+}
+try {
+listeners[i].apply(null, listenerArgs);
+} catch(e) {
+$exceptionHandler(e);
+}
+}
+// Insanity Warning: scope depth-first traversal
+// yes, this code is a bit crazy, but it works and we have tests to prove it!
+// this piece should be kept in sync with the traversal in $digest
+// (though it differs due to having the extra check for $$listenerCount)
+if (!(next = ((current.$$listenerCount[name] && current.$$childHead) ||
+(current !== target && current.$$nextSibling)))) {
+while(current !== target && !(next = current.$$nextSibling)) {
+current = current.$parent;
+}
+}
+}
+return event;
+}
+};
+var $rootScope = new Scope();
+return $rootScope;
+function beginPhase(phase) {
+if ($rootScope.$$phase) {
+throw $rootScopeMinErr('inprog', '{0} already in progress', $rootScope.$$phase);
+}
+$rootScope.$$phase = phase;
+}
+function clearPhase() {
+$rootScope.$$phase = null;
+}
+function compileToFn(exp, name) {
+var fn = $parse(exp);
+assertArgFn(fn, name);
+return fn;
+}
+function decrementListenerCount(current, count, name) {
+do {
+current.$$listenerCount[name] -= count;
+if (current.$$listenerCount[name] === 0) {
+delete current.$$listenerCount[name];
+}
+} while ((current = current.$parent));
+}
+/**
+* function used as an initial value for watchers.
+* because it's unique we can easily tell it apart from other values
+*/
+function initWatchVal() {}
+}];
+}
+/**
+* @description
+* Private service to sanitize uris for links and images. Used by $compile and $sanitize.
+*/
+function $$SanitizeUriProvider() {
+var aHrefSanitizationWhitelist = /^\s*(https?|ftp|mailto|tel|file):/,
+imgSrcSanitizationWhitelist = /^\s*(https?|ftp|file):|data:image\//;
+/**
+* @description
+* Retrieves or overrides the default regular expression that is used for whitelisting of safe
+* urls during a[href] sanitization.
+*
+* The sanitization is a security measure aimed at prevent XSS attacks via html links.
+*
+* Any url about to be assigned to a[href] via data-binding is first normalized and turned into
+* an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`
+* regular expression. If a match is found, the original url is written into the dom. Otherwise,
+* the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.
+*
+* @param {RegExp=} regexp New regexp to whitelist urls with.
+* @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for
+*    chaining otherwise.
+*/
+this.aHrefSanitizationWhitelist = function(regexp) {
+if (isDefined(regexp)) {
+aHrefSanitizationWhitelist = regexp;
+return this;
+}
+return aHrefSanitizationWhitelist;
+};
+/**
+* @description
+* Retrieves or overrides the default regular expression that is used for whitelisting of safe
+* urls during img[src] sanitization.
+*
+* The sanitization is a security measure aimed at prevent XSS attacks via html links.
+*
+* Any url about to be assigned to img[src] via data-binding is first normalized and turned into
+* an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`
+* regular expression. If a match is found, the original url is written into the dom. Otherwise,
+* the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.
+*
+* @param {RegExp=} regexp New regexp to whitelist urls with.
+* @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for
+*    chaining otherwise.
+*/
+this.imgSrcSanitizationWhitelist = function(regexp) {
+if (isDefined(regexp)) {
+imgSrcSanitizationWhitelist = regexp;
+return this;
+}
+return imgSrcSanitizationWhitelist;
+};
+this.$get = function() {
+return function sanitizeUri(uri, isImage) {
+var regex = isImage ? imgSrcSanitizationWhitelist : aHrefSanitizationWhitelist;
+var normalizedVal;
+// NOTE: urlResolve() doesn't support IE < 8 so we don't sanitize for that case.
+if (!msie || msie >= 8 ) {
+normalizedVal = urlResolve(uri).href;
+if (normalizedVal !== '' && !normalizedVal.match(regex)) {
+return 'unsafe:'+normalizedVal;
+}
+}
+return uri;
+};
+};
+}
+var $sceMinErr = minErr('$sce');
+var SCE_CONTEXTS = {
+HTML: 'html',
+CSS: 'css',
+URL: 'url',
+// RESOURCE_URL is a subtype of URL used in contexts where a privileged resource is sourced from a
+// url.  (e.g. ng-include, script src, templateUrl)
+RESOURCE_URL: 'resourceUrl',
+JS: 'js'
+};
+// Helper functions follow.
+// Copied from:
+// http://docs.closure-library.googlecode.com/git/closure_goog_string_string.js.source.html#line962
+// Prereq: s is a string.
+function escapeForRegexp(s) {
+return s.replace(/([-()\[\]{}+?*.$\^|,:#<!\\])/g, '\\$1').
+replace(/\x08/g, '\\x08');
+}
+function adjustMatcher(matcher) {
+if (matcher === 'self') {
+return matcher;
+} else if (isString(matcher)) {
+// Strings match exactly except for 2 wildcards - '*' and '**'.
+// '*' matches any character except those from the set ':/.?&'.
+// '**' matches any character (like .* in a RegExp).
+// More than 2 *'s raises an error as it's ill defined.
+if (matcher.indexOf('***') > -1) {
+throw $sceMinErr('iwcard',
+'Illegal sequence *** in string matcher.  String: {0}', matcher);
+}
+matcher = escapeForRegexp(matcher).
+replace('\\*\\*', '.*').
+replace('\\*', '[^:/.?&;]*');
+return new RegExp('^' + matcher + '$');
+} else if (isRegExp(matcher)) {
+// The only other type of matcher allowed is a Regexp.
+// Match entire URL / disallow partial matches.
+// Flags are reset (i.e. no global, ignoreCase or multiline)
+return new RegExp('^' + matcher.source + '$');
+} else {
+throw $sceMinErr('imatcher',
+'Matchers may only be "self", string patterns or RegExp objects');
+}
+}
+function adjustMatchers(matchers) {
+var adjustedMatchers = [];
+if (isDefined(matchers)) {
+forEach(matchers, function(matcher) {
+adjustedMatchers.push(adjustMatcher(matcher));
+});
+}
+return adjustedMatchers;
+}
+/**
+* @ngdoc service
+* @name $sceDelegate
+* @function
+*
+* @description
+*
+* `$sceDelegate` is a service that is used by the `$sce` service to provide {@link ng.$sce Strict
+* Contextual Escaping (SCE)} services to AngularJS.
+*
+* Typically, you would configure or override the {@link ng.$sceDelegate $sceDelegate} instead of
+* the `$sce` service to customize the way Strict Contextual Escaping works in AngularJS.  This is
+* because, while the `$sce` provides numerous shorthand methods, etc., you really only need to
+* override 3 core functions (`trustAs`, `getTrusted` and `valueOf`) to replace the way things
+* work because `$sce` delegates to `$sceDelegate` for these operations.
+*
+* Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} to configure this service.
+*
+* The default instance of `$sceDelegate` should work out of the box with little pain.  While you
+* can override it completely to change the behavior of `$sce`, the common case would
+* involve configuring the {@link ng.$sceDelegateProvider $sceDelegateProvider} instead by setting
+* your own whitelists and blacklists for trusting URLs used for loading AngularJS resources such as
+* templates.  Refer {@link ng.$sceDelegateProvider#resourceUrlWhitelist
+* $sceDelegateProvider.resourceUrlWhitelist} and {@link
+* ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}
+*/
+/**
+* @ngdoc provider
+* @name $sceDelegateProvider
+* @description
+*
+* The `$sceDelegateProvider` provider allows developers to configure the {@link ng.$sceDelegate
+* $sceDelegate} service.  This allows one to get/set the whitelists and blacklists used to ensure
+* that the URLs used for sourcing Angular templates are safe.  Refer {@link
+* ng.$sceDelegateProvider#resourceUrlWhitelist $sceDelegateProvider.resourceUrlWhitelist} and
+* {@link ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}
+*
+* For the general details about this service in Angular, read the main page for {@link ng.$sce
+* Strict Contextual Escaping (SCE)}.
+*
+* **Example**:  Consider the following case. <a name="example"></a>
+*
+* - your app is hosted at url `http://myapp.example.com/`
+* - but some of your templates are hosted on other domains you control such as
+*   `http://srv01.assets.example.com/`,  `http://srv02.assets.example.com/`, etc.
+* - and you have an open redirect at `http://myapp.example.com/clickThru?...`.
+*
+* Here is what a secure configuration for this scenario might look like:
+*
+* <pre class="prettyprint">
+*    angular.module('myApp', []).config(function($sceDelegateProvider) {
+*      $sceDelegateProvider.resourceUrlWhitelist([
+*        // Allow same origin resource loads.
+*        'self',
+*        // Allow loading from our assets domain.  Notice the difference between * and **.
+*        'http://srv*.assets.example.com/**']);
+*
+*      // The blacklist overrides the whitelist so the open redirect here is blocked.
+*      $sceDelegateProvider.resourceUrlBlacklist([
+*        'http://myapp.example.com/clickThru**']);
+*      });
+* </pre>
+*/
+function $SceDelegateProvider() {
+this.SCE_CONTEXTS = SCE_CONTEXTS;
+// Resource URLs can also be trusted by policy.
+var resourceUrlWhitelist = ['self'],
+resourceUrlBlacklist = [];
+/**
+* @ngdoc method
+* @name $sceDelegateProvider#resourceUrlWhitelist
+* @function
+*
+* @param {Array=} whitelist When provided, replaces the resourceUrlWhitelist with the value
+*     provided.  This must be an array or null.  A snapshot of this array is used so further
+*     changes to the array are ignored.
+*
+*     Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items
+*     allowed in this array.
+*
+*     Note: **an empty whitelist array will block all URLs**!
+*
+* @return {Array} the currently set whitelist array.
+*
+* The **default value** when no whitelist has been explicitly set is `['self']` allowing only
+* same origin resource requests.
+*
+* @description
+* Sets/Gets the whitelist of trusted resource URLs.
+*/
+this.resourceUrlWhitelist = function (value) {
+if (arguments.length) {
+resourceUrlWhitelist = adjustMatchers(value);
+}
+return resourceUrlWhitelist;
+};
+/**
+* @ngdoc method
+* @name $sceDelegateProvider#resourceUrlBlacklist
+* @function
+*
+* @param {Array=} blacklist When provided, replaces the resourceUrlBlacklist with the value
+*     provided.  This must be an array or null.  A snapshot of this array is used so further
+*     changes to the array are ignored.
+*
+*     Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items
+*     allowed in this array.
+*
+*     The typical usage for the blacklist is to **block
+*     [open redirects](http://cwe.mitre.org/data/definitions/601.html)** served by your domain as
+*     these would otherwise be trusted but actually return content from the redirected domain.
+*
+*     Finally, **the blacklist overrides the whitelist** and has the final say.
+*
+* @return {Array} the currently set blacklist array.
+*
+* The **default value** when no whitelist has been explicitly set is the empty array (i.e. there
+* is no blacklist.)
+*
+* @description
+* Sets/Gets the blacklist of trusted resource URLs.
+*/
+this.resourceUrlBlacklist = function (value) {
+if (arguments.length) {
+resourceUrlBlacklist = adjustMatchers(value);
+}
+return resourceUrlBlacklist;
+};
+this.$get = ['$injector', function($injector) {
+var htmlSanitizer = function htmlSanitizer(html) {
+throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');
+};
+if ($injector.has('$sanitize')) {
+htmlSanitizer = $injector.get('$sanitize');
+}
+function matchUrl(matcher, parsedUrl) {
+if (matcher === 'self') {
+return urlIsSameOrigin(parsedUrl);
+} else {
+// definitely a regex.  See adjustMatchers()
+return !!matcher.exec(parsedUrl.href);
+}
+}
+function isResourceUrlAllowedByPolicy(url) {
+var parsedUrl = urlResolve(url.toString());
+var i, n, allowed = false;
+// Ensure that at least one item from the whitelist allows this url.
+for (i = 0, n = resourceUrlWhitelist.length; i < n; i++) {
+if (matchUrl(resourceUrlWhitelist[i], parsedUrl)) {
+allowed = true;
+break;
+}
+}
+if (allowed) {
+// Ensure that no item from the blacklist blocked this url.
+for (i = 0, n = resourceUrlBlacklist.length; i < n; i++) {
+if (matchUrl(resourceUrlBlacklist[i], parsedUrl)) {
+allowed = false;
+break;
+}
+}
+}
+return allowed;
+}
+function generateHolderType(Base) {
+var holderType = function TrustedValueHolderType(trustedValue) {
+this.$$unwrapTrustedValue = function() {
+return trustedValue;
+};
+};
+if (Base) {
+holderType.prototype = new Base();
+}
+holderType.prototype.valueOf = function sceValueOf() {
+return this.$$unwrapTrustedValue();
+};
+holderType.prototype.toString = function sceToString() {
+return this.$$unwrapTrustedValue().toString();
+};
+return holderType;
+}
+var trustedValueHolderBase = generateHolderType(),
+byType = {};
+byType[SCE_CONTEXTS.HTML] = generateHolderType(trustedValueHolderBase);
+byType[SCE_CONTEXTS.CSS] = generateHolderType(trustedValueHolderBase);
+byType[SCE_CONTEXTS.URL] = generateHolderType(trustedValueHolderBase);
+byType[SCE_CONTEXTS.JS] = generateHolderType(trustedValueHolderBase);
+byType[SCE_CONTEXTS.RESOURCE_URL] = generateHolderType(byType[SCE_CONTEXTS.URL]);
+/**
+* @ngdoc method
+* @name $sceDelegate#trustAs
+*
+* @description
+* Returns an object that is trusted by angular for use in specified strict
+* contextual escaping contexts (such as ng-bind-html, ng-include, any src
+* attribute interpolation, any dom event binding attribute interpolation
+* such as for onclick,  etc.) that uses the provided value.
+* See {@link ng.$sce $sce} for enabling strict contextual escaping.
+*
+* @param {string} type The kind of context in which this value is safe for use.  e.g. url,
+*   resourceUrl, html, js and css.
+* @param {*} value The value that that should be considered trusted/safe.
+* @returns {*} A value that can be used to stand in for the provided `value` in places
+* where Angular expects a $sce.trustAs() return value.
+*/
+function trustAs(type, trustedValue) {
+var Constructor = (byType.hasOwnProperty(type) ? byType[type] : null);
+if (!Constructor) {
+throw $sceMinErr('icontext',
+'Attempted to trust a value in invalid context. Context: {0}; Value: {1}',
+type, trustedValue);
+}
+if (trustedValue === null || trustedValue === undefined || trustedValue === '') {
+return trustedValue;
+}
+// All the current contexts in SCE_CONTEXTS happen to be strings.  In order to avoid trusting
+// mutable objects, we ensure here that the value passed in is actually a string.
+if (typeof trustedValue !== 'string') {
+throw $sceMinErr('itype',
+'Attempted to trust a non-string value in a content requiring a string: Context: {0}',
+type);
+}
+return new Constructor(trustedValue);
+}
+/**
+* @ngdoc method
+* @name $sceDelegate#valueOf
+*
+* @description
+* If the passed parameter had been returned by a prior call to {@link ng.$sceDelegate#trustAs
+* `$sceDelegate.trustAs`}, returns the value that had been passed to {@link
+* ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.
+*
+* If the passed parameter is not a value that had been returned by {@link
+* ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}, returns it as-is.
+*
+* @param {*} value The result of a prior {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}
+*      call or anything else.
+* @returns {*} The `value` that was originally provided to {@link ng.$sceDelegate#trustAs
+*     `$sceDelegate.trustAs`} if `value` is the result of such a call.  Otherwise, returns
+*     `value` unchanged.
+*/
+function valueOf(maybeTrusted) {
+if (maybeTrusted instanceof trustedValueHolderBase) {
+return maybeTrusted.$$unwrapTrustedValue();
+} else {
+return maybeTrusted;
+}
+}
+/**
+* @ngdoc method
+* @name $sceDelegate#getTrusted
+*
+* @description
+* Takes the result of a {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`} call and
+* returns the originally supplied value if the queried context type is a supertype of the
+* created type.  If this condition isn't satisfied, throws an exception.
+*
+* @param {string} type The kind of context in which this value is to be used.
+* @param {*} maybeTrusted The result of a prior {@link ng.$sceDelegate#trustAs
+*     `$sceDelegate.trustAs`} call.
+* @returns {*} The value the was originally provided to {@link ng.$sceDelegate#trustAs
+*     `$sceDelegate.trustAs`} if valid in this context.  Otherwise, throws an exception.
+*/
+function getTrusted(type, maybeTrusted) {
+if (maybeTrusted === null || maybeTrusted === undefined || maybeTrusted === '') {
+return maybeTrusted;
+}
+var constructor = (byType.hasOwnProperty(type) ? byType[type] : null);
+if (constructor && maybeTrusted instanceof constructor) {
+return maybeTrusted.$$unwrapTrustedValue();
+}
+// If we get here, then we may only take one of two actions.
+// 1. sanitize the value for the requested type, or
+// 2. throw an exception.
+if (type === SCE_CONTEXTS.RESOURCE_URL) {
+if (isResourceUrlAllowedByPolicy(maybeTrusted)) {
+return maybeTrusted;
+} else {
+throw $sceMinErr('insecurl',
+'Blocked loading resource from url not allowed by $sceDelegate policy.  URL: {0}',
+maybeTrusted.toString());
+}
+} else if (type === SCE_CONTEXTS.HTML) {
+return htmlSanitizer(maybeTrusted);
+}
+throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');
+}
+return { trustAs: trustAs,
+getTrusted: getTrusted,
+valueOf: valueOf };
+}];
+}
+/**
+* @ngdoc provider
+* @name $sceProvider
+* @description
+*
+* The $sceProvider provider allows developers to configure the {@link ng.$sce $sce} service.
+* -   enable/disable Strict Contextual Escaping (SCE) in a module
+* -   override the default implementation with a custom delegate
+*
+* Read more about {@link ng.$sce Strict Contextual Escaping (SCE)}.
+*/
+/* jshint maxlen: false*/
+/**
+* @ngdoc service
+* @name $sce
+* @function
+*
+* @description
+*
+* `$sce` is a service that provides Strict Contextual Escaping services to AngularJS.
+*
+* # Strict Contextual Escaping
+*
+* Strict Contextual Escaping (SCE) is a mode in which AngularJS requires bindings in certain
+* contexts to result in a value that is marked as safe to use for that context.  One example of
+* such a context is binding arbitrary html controlled by the user via `ng-bind-html`.  We refer
+* to these contexts as privileged or SCE contexts.
+*
+* As of version 1.2, Angular ships with SCE enabled by default.
+*
+* Note:  When enabled (the default), IE8 in quirks mode is not supported.  In this mode, IE8 allows
+* one to execute arbitrary javascript by the use of the expression() syntax.  Refer
+* <http://blogs.msdn.com/b/ie/archive/2008/10/16/ending-expressions.aspx> to learn more about them.
+* You can ensure your document is in standards mode and not quirks mode by adding `<!doctype html>`
+* to the top of your HTML document.
+*
+* SCE assists in writing code in way that (a) is secure by default and (b) makes auditing for
+* security vulnerabilities such as XSS, clickjacking, etc. a lot easier.
+*
+* Here's an example of a binding in a privileged context:
+*
+* <pre class="prettyprint">
+*     <input ng-model="userHtml">
+*     <div ng-bind-html="userHtml">
+* </pre>
+*
+* Notice that `ng-bind-html` is bound to `userHtml` controlled by the user.  With SCE
+* disabled, this application allows the user to render arbitrary HTML into the DIV.
+* In a more realistic example, one may be rendering user comments, blog articles, etc. via
+* bindings.  (HTML is just one example of a context where rendering user controlled input creates
+* security vulnerabilities.)
+*
+* For the case of HTML, you might use a library, either on the client side, or on the server side,
+* to sanitize unsafe HTML before binding to the value and rendering it in the document.
+*
+* How would you ensure that every place that used these types of bindings was bound to a value that
+* was sanitized by your library (or returned as safe for rendering by your server?)  How can you
+* ensure that you didn't accidentally delete the line that sanitized the value, or renamed some
+* properties/fields and forgot to update the binding to the sanitized value?
+*
+* To be secure by default, you want to ensure that any such bindings are disallowed unless you can
+* determine that something explicitly says it's safe to use a value for binding in that
+* context.  You can then audit your code (a simple grep would do) to ensure that this is only done
+* for those values that you can easily tell are safe - because they were received from your server,
+* sanitized by your library, etc.  You can organize your codebase to help with this - perhaps
+* allowing only the files in a specific directory to do this.  Ensuring that the internal API
+* exposed by that code doesn't markup arbitrary values as safe then becomes a more manageable task.
+*
+* In the case of AngularJS' SCE service, one uses {@link ng.$sce#trustAs $sce.trustAs}
+* (and shorthand methods such as {@link ng.$sce#trustAsHtml $sce.trustAsHtml}, etc.) to
+* obtain values that will be accepted by SCE / privileged contexts.
+*
+*
+* ## How does it work?
+*
+* In privileged contexts, directives and code will bind to the result of {@link ng.$sce#getTrusted
+* $sce.getTrusted(context, value)} rather than to the value directly.  Directives use {@link
+* ng.$sce#parse $sce.parseAs} rather than `$parse` to watch attribute bindings, which performs the
+* {@link ng.$sce#getTrusted $sce.getTrusted} behind the scenes on non-constant literals.
+*
+* As an example, {@link ng.directive:ngBindHtml ngBindHtml} uses {@link
+* ng.$sce#parseAsHtml $sce.parseAsHtml(binding expression)}.  Here's the actual code (slightly
+* simplified):
+*
+* <pre class="prettyprint">
+*   var ngBindHtmlDirective = ['$sce', function($sce) {
+*     return function(scope, element, attr) {
+*       scope.$watch($sce.parseAsHtml(attr.ngBindHtml), function(value) {
+*         element.html(value || '');
+*       });
+*     };
+*   }];
+* </pre>
+*
+* ## Impact on loading templates
+*
+* This applies both to the {@link ng.directive:ngInclude `ng-include`} directive as well as
+* `templateUrl`'s specified by {@link guide/directive directives}.
+*
+* By default, Angular only loads templates from the same domain and protocol as the application
+* document.  This is done by calling {@link ng.$sce#getTrustedResourceUrl
+* $sce.getTrustedResourceUrl} on the template URL.  To load templates from other domains and/or
+* protocols, you may either either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist
+* them} or {@link ng.$sce#trustAsResourceUrl wrap it} into a trusted value.
+*
+* *Please note*:
+* The browser's
+* [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)
+* and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)
+* policy apply in addition to this and may further restrict whether the template is successfully
+* loaded.  This means that without the right CORS policy, loading templates from a different domain
+* won't work on all browsers.  Also, loading templates from `file://` URL does not work on some
+* browsers.
+*
+* ## This feels like too much overhead for the developer?
+*
+* It's important to remember that SCE only applies to interpolation expressions.
+*
+* If your expressions are constant literals, they're automatically trusted and you don't need to
+* call `$sce.trustAs` on them (remember to include the `ngSanitize` module) (e.g.
+* `<div ng-bind-html="'<b>implicitly trusted</b>'"></div>`) just works.
+*
+* Additionally, `a[href]` and `img[src]` automatically sanitize their URLs and do not pass them
+* through {@link ng.$sce#getTrusted $sce.getTrusted}.  SCE doesn't play a role here.
+*
+* The included {@link ng.$sceDelegate $sceDelegate} comes with sane defaults to allow you to load
+* templates in `ng-include` from your application's domain without having to even know about SCE.
+* It blocks loading templates from other domains or loading templates over http from an https
+* served document.  You can change these by setting your own custom {@link
+* ng.$sceDelegateProvider#resourceUrlWhitelist whitelists} and {@link
+* ng.$sceDelegateProvider#resourceUrlBlacklist blacklists} for matching such URLs.
+*
+* This significantly reduces the overhead.  It is far easier to pay the small overhead and have an
+* application that's secure and can be audited to verify that with much more ease than bolting
+* security onto an application later.
+*
+* <a name="contexts"></a>
+* ## What trusted context types are supported?
+*
+* | Context             | Notes          |
+* |---------------------|----------------|
+* | `$sce.HTML`         | For HTML that's safe to source into the application.  The {@link ng.directive:ngBindHtml ngBindHtml} directive uses this context for bindings. |
+* | `$sce.CSS`          | For CSS that's safe to source into the application.  Currently unused.  Feel free to use it in your own directives. |
+* | `$sce.URL`          | For URLs that are safe to follow as links.  Currently unused (`<a href=` and `<img src=` sanitize their urls and don't constitute an SCE context. |
+* | `$sce.RESOURCE_URL` | For URLs that are not only safe to follow as links, but whose contens are also safe to include in your application.  Examples include `ng-include`, `src` / `ngSrc` bindings for tags other than `IMG` (e.g. `IFRAME`, `OBJECT`, etc.)  <br><br>Note that `$sce.RESOURCE_URL` makes a stronger statement about the URL than `$sce.URL` does and therefore contexts requiring values trusted for `$sce.RESOURCE_URL` can be used anywhere that values trusted for `$sce.URL` are required. |
+* | `$sce.JS`           | For JavaScript that is safe to execute in your application's context.  Currently unused.  Feel free to use it in your own directives. |
+*
+* ## Format of items in {@link ng.$sceDelegateProvider#resourceUrlWhitelist resourceUrlWhitelist}/{@link ng.$sceDelegateProvider#resourceUrlBlacklist Blacklist} <a name="resourceUrlPatternItem"></a>
+*
+*  Each element in these arrays must be one of the following:
+*
+*  - **'self'**
+*    - The special **string**, `'self'`, can be used to match against all URLs of the **same
+*      domain** as the application document using the **same protocol**.
+*  - **String** (except the special value `'self'`)
+*    - The string is matched against the full *normalized / absolute URL* of the resource
+*      being tested (substring matches are not good enough.)
+*    - There are exactly **two wildcard sequences** - `*` and `**`.  All other characters
+*      match themselves.
+*    - `*`: matches zero or more occurrences of any character other than one of the following 6
+*      characters: '`:`', '`/`', '`.`', '`?`', '`&`' and ';'.  It's a useful wildcard for use
+*      in a whitelist.
+*    - `**`: matches zero or more occurrences of *any* character.  As such, it's not
+*      not appropriate to use in for a scheme, domain, etc. as it would match too much.  (e.g.
+*      http://**.example.com/ would match http://evil.com/?ignore=.example.com/ and that might
+*      not have been the intention.)  It's usage at the very end of the path is ok.  (e.g.
+*      http://foo.example.com/templates/**).
+*  - **RegExp** (*see caveat below*)
+*    - *Caveat*:  While regular expressions are powerful and offer great flexibility,  their syntax
+*      (and all the inevitable escaping) makes them *harder to maintain*.  It's easy to
+*      accidentally introduce a bug when one updates a complex expression (imho, all regexes should
+*      have good test coverage.).  For instance, the use of `.` in the regex is correct only in a
+*      small number of cases.  A `.` character in the regex used when matching the scheme or a
+*      subdomain could be matched against a `:` or literal `.` that was likely not intended.   It
+*      is highly recommended to use the string patterns and only fall back to regular expressions
+*      if they as a last resort.
+*    - The regular expression must be an instance of RegExp (i.e. not a string.)  It is
+*      matched against the **entire** *normalized / absolute URL* of the resource being tested
+*      (even when the RegExp did not have the `^` and `$` codes.)  In addition, any flags
+*      present on the RegExp (such as multiline, global, ignoreCase) are ignored.
+*    - If you are generating your JavaScript from some other templating engine (not
+*      recommended, e.g. in issue [#4006](https://github.com/angular/angular.js/issues/4006)),
+*      remember to escape your regular expression (and be aware that you might need more than
+*      one level of escaping depending on your templating engine and the way you interpolated
+*      the value.)  Do make use of your platform's escaping mechanism as it might be good
+*      enough before coding your own.  e.g. Ruby has
+*      [Regexp.escape(str)](http://www.ruby-doc.org/core-2.0.0/Regexp.html#method-c-escape)
+*      and Python has [re.escape](http://docs.python.org/library/re.html#re.escape).
+*      Javascript lacks a similar built in function for escaping.  Take a look at Google
+*      Closure library's [goog.string.regExpEscape(s)](
+*      http://docs.closure-library.googlecode.com/git/closure_goog_string_string.js.source.html#line962).
+*
+* Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} for an example.
+*
+* ## Show me an example using SCE.
+*
+* @example
+<example module="mySceApp" deps="angular-sanitize.js">
+<file name="index.html">
+<div ng-controller="myAppController as myCtrl">
+<i ng-bind-html="myCtrl.explicitlyTrustedHtml" id="explicitlyTrustedHtml"></i><br><br>
+<b>User comments</b><br>
+By default, HTML that isn't explicitly trusted (e.g. Alice's comment) is sanitized when
+$sanitize is available.  If $sanitize isn't available, this results in an error instead of an
+exploit.
+<div class="well">
+<div ng-repeat="userComment in myCtrl.userComments">
+<b>{{userComment.name}}</b>:
+<span ng-bind-html="userComment.htmlComment" class="htmlComment"></span>
+<br>
+</div>
+</div>
+</div>
+</file>
+<file name="script.js">
+var mySceApp = angular.module('mySceApp', ['ngSanitize']);
+mySceApp.controller("myAppController", function myAppController($http, $templateCache, $sce) {
+var self = this;
+$http.get("test_data.json", {cache: $templateCache}).success(function(userComments) {
+self.userComments = userComments;
+});
+self.explicitlyTrustedHtml = $sce.trustAsHtml(
+'<span onmouseover="this.textContent=&quot;Explicitly trusted HTML bypasses ' +
+'sanitization.&quot;">Hover over this text.</span>');
+});
+</file>
+<file name="test_data.json">
+[
+{ "name": "Alice",
+"htmlComment":
+"<span onmouseover='this.textContent=\"PWN3D!\"'>Is <i>anyone</i> reading this?</span>"
+},
+{ "name": "Bob",
+"htmlComment": "<i>Yes!</i>  Am I the only other one?"
+}
+]
+</file>
+<file name="protractor.js" type="protractor">
+describe('SCE doc demo', function() {
+it('should sanitize untrusted values', function() {
+expect(element(by.css('.htmlComment')).getInnerHtml())
+.toBe('<span>Is <i>anyone</i> reading this?</span>');
+});
+it('should NOT sanitize explicitly trusted values', function() {
+expect(element(by.id('explicitlyTrustedHtml')).getInnerHtml()).toBe(
+'<span onmouseover="this.textContent=&quot;Explicitly trusted HTML bypasses ' +
+'sanitization.&quot;">Hover over this text.</span>');
+});
+});
+</file>
+</example>
+*
+*
+*
+* ## Can I disable SCE completely?
+*
+* Yes, you can.  However, this is strongly discouraged.  SCE gives you a lot of security benefits
+* for little coding overhead.  It will be much harder to take an SCE disabled application and
+* either secure it on your own or enable SCE at a later stage.  It might make sense to disable SCE
+* for cases where you have a lot of existing code that was written before SCE was introduced and
+* you're migrating them a module at a time.
+*
+* That said, here's how you can completely disable SCE:
+*
+* <pre class="prettyprint">
+*   angular.module('myAppWithSceDisabledmyApp', []).config(function($sceProvider) {
+*     // Completely disable SCE.  For demonstration purposes only!
+*     // Do not use in new projects.
+*     $sceProvider.enabled(false);
+*   });
+* </pre>
+*
+*/
+/* jshint maxlen: 100 */
+function $SceProvider() {
+var enabled = true;
+/**
+* @ngdoc method
+* @name $sceProvider#enabled
+* @function
+*
+* @param {boolean=} value If provided, then enables/disables SCE.
+* @return {boolean} true if SCE is enabled, false otherwise.
+*
+* @description
+* Enables/disables SCE and returns the current value.
+*/
+this.enabled = function (value) {
+if (arguments.length) {
+enabled = !!value;
+}
+return enabled;
+};
+/* Design notes on the default implementation for SCE.
+*
+* The API contract for the SCE delegate
+* -------------------------------------
+* The SCE delegate object must provide the following 3 methods:
+*
+* - trustAs(contextEnum, value)
+*     This method is used to tell the SCE service that the provided value is OK to use in the
+*     contexts specified by contextEnum.  It must return an object that will be accepted by
+*     getTrusted() for a compatible contextEnum and return this value.
+*
+* - valueOf(value)
+*     For values that were not produced by trustAs(), return them as is.  For values that were
+*     produced by trustAs(), return the corresponding input value to trustAs.  Basically, if
+*     trustAs is wrapping the given values into some type, this operation unwraps it when given
+*     such a value.
+*
+* - getTrusted(contextEnum, value)
+*     This function should return the a value that is safe to use in the context specified by
+*     contextEnum or throw and exception otherwise.
+*
+* NOTE: This contract deliberately does NOT state that values returned by trustAs() must be
+* opaque or wrapped in some holder object.  That happens to be an implementation detail.  For
+* instance, an implementation could maintain a registry of all trusted objects by context.  In
+* such a case, trustAs() would return the same object that was passed in.  getTrusted() would
+* return the same object passed in if it was found in the registry under a compatible context or
+* throw an exception otherwise.  An implementation might only wrap values some of the time based
+* on some criteria.  getTrusted() might return a value and not throw an exception for special
+* constants or objects even if not wrapped.  All such implementations fulfill this contract.
+*
+*
+* A note on the inheritance model for SCE contexts
+* ------------------------------------------------
+* I've used inheritance and made RESOURCE_URL wrapped types a subtype of URL wrapped types.  This
+* is purely an implementation details.
+*
+* The contract is simply this:
+*
+*     getTrusted($sce.RESOURCE_URL, value) succeeding implies that getTrusted($sce.URL, value)
+*     will also succeed.
+*
+* Inheritance happens to capture this in a natural way.  In some future, we
+* may not use inheritance anymore.  That is OK because no code outside of
+* sce.js and sceSpecs.js would need to be aware of this detail.
+*/
+this.$get = ['$parse', '$sniffer', '$sceDelegate', function(
+$parse,   $sniffer,   $sceDelegate) {
+// Prereq: Ensure that we're not running in IE8 quirks mode.  In that mode, IE allows
+// the "expression(javascript expression)" syntax which is insecure.
+if (enabled && $sniffer.msie && $sniffer.msieDocumentMode < 8) {
+throw $sceMinErr('iequirks',
+'Strict Contextual Escaping does not support Internet Explorer version < 9 in quirks ' +
+'mode.  You can fix this by adding the text <!doctype html> to the top of your HTML ' +
+'document.  See http://docs.angularjs.org/api/ng.$sce for more information.');
+}
+var sce = copy(SCE_CONTEXTS);
+/**
+* @ngdoc method
+* @name $sce#isEnabled
+* @function
+*
+* @return {Boolean} true if SCE is enabled, false otherwise.  If you want to set the value, you
+* have to do it at module config time on {@link ng.$sceProvider $sceProvider}.
+*
+* @description
+* Returns a boolean indicating if SCE is enabled.
+*/
+sce.isEnabled = function () {
+return enabled;
+};
+sce.trustAs = $sceDelegate.trustAs;
+sce.getTrusted = $sceDelegate.getTrusted;
+sce.valueOf = $sceDelegate.valueOf;
+if (!enabled) {
+sce.trustAs = sce.getTrusted = function(type, value) { return value; };
+sce.valueOf = identity;
+}
+/**
+* @ngdoc method
+* @name $sce#parse
+*
+* @description
+* Converts Angular {@link guide/expression expression} into a function.  This is like {@link
+* ng.$parse $parse} and is identical when the expression is a literal constant.  Otherwise, it
+* wraps the expression in a call to {@link ng.$sce#getTrusted $sce.getTrusted(*type*,
+* *result*)}
+*
+* @param {string} type The kind of SCE context in which this result will be used.
+* @param {string} expression String expression to compile.
+* @returns {function(context, locals)} a function which represents the compiled expression:
+*
+*    * `context` – `{object}` – an object against which any expressions embedded in the strings
+*      are evaluated against (typically a scope object).
+*    * `locals` – `{object=}` – local variables context object, useful for overriding values in
+*      `context`.
+*/
+sce.parseAs = function sceParseAs(type, expr) {
+var parsed = $parse(expr);
+if (parsed.literal && parsed.constant) {
+return parsed;
+} else {
+return function sceParseAsTrusted(self, locals) {
+return sce.getTrusted(type, parsed(self, locals));
+};
+}
+};
+/**
+* @ngdoc method
+* @name $sce#trustAs
+*
+* @description
+* Delegates to {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.  As such,
+* returns an object that is trusted by angular for use in specified strict contextual
+* escaping contexts (such as ng-bind-html, ng-include, any src attribute
+* interpolation, any dom event binding attribute interpolation such as for onclick,  etc.)
+* that uses the provided value.  See * {@link ng.$sce $sce} for enabling strict contextual
+* escaping.
+*
+* @param {string} type The kind of context in which this value is safe for use.  e.g. url,
+*   resource_url, html, js and css.
+* @param {*} value The value that that should be considered trusted/safe.
+* @returns {*} A value that can be used to stand in for the provided `value` in places
+* where Angular expects a $sce.trustAs() return value.
+*/
+/**
+* @ngdoc method
+* @name $sce#trustAsHtml
+*
+* @description
+* Shorthand method.  `$sce.trustAsHtml(value)` →
+*     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.HTML, value)`}
+*
+* @param {*} value The value to trustAs.
+* @returns {*} An object that can be passed to {@link ng.$sce#getTrustedHtml
+*     $sce.getTrustedHtml(value)} to obtain the original value.  (privileged directives
+*     only accept expressions that are either literal constants or are the
+*     return value of {@link ng.$sce#trustAs $sce.trustAs}.)
+*/
+/**
+* @ngdoc method
+* @name $sce#trustAsUrl
+*
+* @description
+* Shorthand method.  `$sce.trustAsUrl(value)` →
+*     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.URL, value)`}
+*
+* @param {*} value The value to trustAs.
+* @returns {*} An object that can be passed to {@link ng.$sce#getTrustedUrl
+*     $sce.getTrustedUrl(value)} to obtain the original value.  (privileged directives
+*     only accept expressions that are either literal constants or are the
+*     return value of {@link ng.$sce#trustAs $sce.trustAs}.)
+*/
+/**
+* @ngdoc method
+* @name $sce#trustAsResourceUrl
+*
+* @description
+* Shorthand method.  `$sce.trustAsResourceUrl(value)` →
+*     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.RESOURCE_URL, value)`}
+*
+* @param {*} value The value to trustAs.
+* @returns {*} An object that can be passed to {@link ng.$sce#getTrustedResourceUrl
+*     $sce.getTrustedResourceUrl(value)} to obtain the original value.  (privileged directives
+*     only accept expressions that are either literal constants or are the return
+*     value of {@link ng.$sce#trustAs $sce.trustAs}.)
+*/
+/**
+* @ngdoc method
+* @name $sce#trustAsJs
+*
+* @description
+* Shorthand method.  `$sce.trustAsJs(value)` →
+*     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.JS, value)`}
+*
+* @param {*} value The value to trustAs.
+* @returns {*} An object that can be passed to {@link ng.$sce#getTrustedJs
+*     $sce.getTrustedJs(value)} to obtain the original value.  (privileged directives
+*     only accept expressions that are either literal constants or are the
+*     return value of {@link ng.$sce#trustAs $sce.trustAs}.)
+*/
+/**
+* @ngdoc method
+* @name $sce#getTrusted
+*
+* @description
+* Delegates to {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted`}.  As such,
+* takes the result of a {@link ng.$sce#trustAs `$sce.trustAs`}() call and returns the
+* originally supplied value if the queried context type is a supertype of the created type.
+* If this condition isn't satisfied, throws an exception.
+*
+* @param {string} type The kind of context in which this value is to be used.
+* @param {*} maybeTrusted The result of a prior {@link ng.$sce#trustAs `$sce.trustAs`}
+*                         call.
+* @returns {*} The value the was originally provided to
+*              {@link ng.$sce#trustAs `$sce.trustAs`} if valid in this context.
+*              Otherwise, throws an exception.
+*/
+/**
+* @ngdoc method
+* @name $sce#getTrustedHtml
+*
+* @description
+* Shorthand method.  `$sce.getTrustedHtml(value)` →
+*     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.HTML, value)`}
+*
+* @param {*} value The value to pass to `$sce.getTrusted`.
+* @returns {*} The return value of `$sce.getTrusted($sce.HTML, value)`
+*/
+/**
+* @ngdoc method
+* @name $sce#getTrustedCss
+*
+* @description
+* Shorthand method.  `$sce.getTrustedCss(value)` →
+*     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.CSS, value)`}
+*
+* @param {*} value The value to pass to `$sce.getTrusted`.
+* @returns {*} The return value of `$sce.getTrusted($sce.CSS, value)`
+*/
+/**
+* @ngdoc method
+* @name $sce#getTrustedUrl
+*
+* @description
+* Shorthand method.  `$sce.getTrustedUrl(value)` →
+*     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.URL, value)`}
+*
+* @param {*} value The value to pass to `$sce.getTrusted`.
+* @returns {*} The return value of `$sce.getTrusted($sce.URL, value)`
+*/
+/**
+* @ngdoc method
+* @name $sce#getTrustedResourceUrl
+*
+* @description
+* Shorthand method.  `$sce.getTrustedResourceUrl(value)` →
+*     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.RESOURCE_URL, value)`}
+*
+* @param {*} value The value to pass to `$sceDelegate.getTrusted`.
+* @returns {*} The return value of `$sce.getTrusted($sce.RESOURCE_URL, value)`
+*/
+/**
+* @ngdoc method
+* @name $sce#getTrustedJs
+*
+* @description
+* Shorthand method.  `$sce.getTrustedJs(value)` →
+*     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.JS, value)`}
+*
+* @param {*} value The value to pass to `$sce.getTrusted`.
+* @returns {*} The return value of `$sce.getTrusted($sce.JS, value)`
+*/
+/**
+* @ngdoc method
+* @name $sce#parseAsHtml
+*
+* @description
+* Shorthand method.  `$sce.parseAsHtml(expression string)` →
+*     {@link ng.$sce#parse `$sce.parseAs($sce.HTML, value)`}
+*
+* @param {string} expression String expression to compile.
+* @returns {function(context, locals)} a function which represents the compiled expression:
+*
+*    * `context` – `{object}` – an object against which any expressions embedded in the strings
+*      are evaluated against (typically a scope object).
+*    * `locals` – `{object=}` – local variables context object, useful for overriding values in
+*      `context`.
+*/
+/**
+* @ngdoc method
+* @name $sce#parseAsCss
+*
+* @description
+* Shorthand method.  `$sce.parseAsCss(value)` →
+*     {@link ng.$sce#parse `$sce.parseAs($sce.CSS, value)`}
+*
+* @param {string} expression String expression to compile.
+* @returns {function(context, locals)} a function which represents the compiled expression:
+*
+*    * `context` – `{object}` – an object against which any expressions embedded in the strings
+*      are evaluated against (typically a scope object).
+*    * `locals` – `{object=}` – local variables context object, useful for overriding values in
+*      `context`.
+*/
+/**
+* @ngdoc method
+* @name $sce#parseAsUrl
+*
+* @description
+* Shorthand method.  `$sce.parseAsUrl(value)` →
+*     {@link ng.$sce#parse `$sce.parseAs($sce.URL, value)`}
+*
+* @param {string} expression String expression to compile.
+* @returns {function(context, locals)} a function which represents the compiled expression:
+*
+*    * `context` – `{object}` – an object against which any expressions embedded in the strings
+*      are evaluated against (typically a scope object).
+*    * `locals` – `{object=}` – local variables context object, useful for overriding values in
+*      `context`.
+*/
+/**
+* @ngdoc method
+* @name $sce#parseAsResourceUrl
+*
+* @description
+* Shorthand method.  `$sce.parseAsResourceUrl(value)` →
+*     {@link ng.$sce#parse `$sce.parseAs($sce.RESOURCE_URL, value)`}
+*
+* @param {string} expression String expression to compile.
+* @returns {function(context, locals)} a function which represents the compiled expression:
+*
+*    * `context` – `{object}` – an object against which any expressions embedded in the strings
+*      are evaluated against (typically a scope object).
+*    * `locals` – `{object=}` – local variables context object, useful for overriding values in
+*      `context`.
+*/
+/**
+* @ngdoc method
+* @name $sce#parseAsJs
+*
+* @description
+* Shorthand method.  `$sce.parseAsJs(value)` →
+*     {@link ng.$sce#parse `$sce.parseAs($sce.JS, value)`}
+*
+* @param {string} expression String expression to compile.
+* @returns {function(context, locals)} a function which represents the compiled expression:
+*
+*    * `context` – `{object}` – an object against which any expressions embedded in the strings
+*      are evaluated against (typically a scope object).
+*    * `locals` – `{object=}` – local variables context object, useful for overriding values in
+*      `context`.
+*/
+// Shorthand delegations.
+var parse = sce.parseAs,
+getTrusted = sce.getTrusted,
+trustAs = sce.trustAs;
+forEach(SCE_CONTEXTS, function (enumValue, name) {
+var lName = lowercase(name);
+sce[camelCase("parse_as_" + lName)] = function (expr) {
+return parse(enumValue, expr);
+};
+sce[camelCase("get_trusted_" + lName)] = function (value) {
+return getTrusted(enumValue, value);
+};
+sce[camelCase("trust_as_" + lName)] = function (value) {
+return trustAs(enumValue, value);
+};
+});
+return sce;
+}];
+}
+/**
+* !!! This is an undocumented "private" service !!!
+*
+* @name $sniffer
+* @requires $window
+* @requires $document
+*
+* @property {boolean} history Does the browser support html5 history api ?
+* @property {boolean} hashchange Does the browser support hashchange event ?
+* @property {boolean} transitions Does the browser support CSS transition events ?
+* @property {boolean} animations Does the browser support CSS animation events ?
+*
+* @description
+* This is very simple implementation of testing browser's features.
+*/
+function $SnifferProvider() {
+this.$get = ['$window', '$document', function($window, $document) {
+var eventSupport = {},
+android =
+int((/android (\d+)/.exec(lowercase(($window.navigator || {}).userAgent)) || [])[1]),
+boxee = /Boxee/i.test(($window.navigator || {}).userAgent),
+document = $document[0] || {},
+documentMode = document.documentMode,
+vendorPrefix,
+vendorRegex = /^(Moz|webkit|O|ms)(?=[A-Z])/,
+bodyStyle = document.body && document.body.style,
+transitions = false,
+animations = false,
+match;
+if (bodyStyle) {
+for(var prop in bodyStyle) {
+if(match = vendorRegex.exec(prop)) {
+vendorPrefix = match[0];
+vendorPrefix = vendorPrefix.substr(0, 1).toUpperCase() + vendorPrefix.substr(1);
+break;
+}
+}
+if(!vendorPrefix) {
+vendorPrefix = ('WebkitOpacity' in bodyStyle) && 'webkit';
+}
+transitions = !!(('transition' in bodyStyle) || (vendorPrefix + 'Transition' in bodyStyle));
+animations  = !!(('animation' in bodyStyle) || (vendorPrefix + 'Animation' in bodyStyle));
+if (android && (!transitions||!animations)) {
+transitions = isString(document.body.style.webkitTransition);
+animations = isString(document.body.style.webkitAnimation);
+}
+}
+return {
+// Android has history.pushState, but it does not update location correctly
+// so let's not use the history API at all.
+// http://code.google.com/p/android/issues/detail?id=17471
+// https://github.com/angular/angular.js/issues/904
+// older webkit browser (533.9) on Boxee box has exactly the same problem as Android has
+// so let's not use the history API also
+// We are purposefully using `!(android < 4)` to cover the case when `android` is undefined
+// jshint -W018
+history: !!($window.history && $window.history.pushState && !(android < 4) && !boxee),
+// jshint +W018
+hashchange: 'onhashchange' in $window &&
+// IE8 compatible mode lies
+(!documentMode || documentMode > 7),
+hasEvent: function(event) {
+// IE9 implements 'input' event it's so fubared that we rather pretend that it doesn't have
+// it. In particular the event is not fired when backspace or delete key are pressed or
+// when cut operation is performed.
+if (event == 'input' && msie == 9) return false;
+if (isUndefined(eventSupport[event])) {
+var divElm = document.createElement('div');
+eventSupport[event] = 'on' + event in divElm;
+}
+return eventSupport[event];
+},
+csp: csp(),
+vendorPrefix: vendorPrefix,
+transitions : transitions,
+animations : animations,
+android: android,
+msie : msie,
+msieDocumentMode: documentMode
+};
+}];
+}
+function $TimeoutProvider() {
+this.$get = ['$rootScope', '$browser', '$q', '$exceptionHandler',
+function($rootScope,   $browser,   $q,   $exceptionHandler) {
+var deferreds = {};
+/**
+* @ngdoc service
+* @name $timeout
+*
+* @description
+* Angular's wrapper for `window.setTimeout`. The `fn` function is wrapped into a try/catch
+* block and delegates any exceptions to
+* {@link ng.$exceptionHandler $exceptionHandler} service.
+*
+* The return value of registering a timeout function is a promise, which will be resolved when
+* the timeout is reached and the timeout function is executed.
+*
+* To cancel a timeout request, call `$timeout.cancel(promise)`.
+*
+* In tests you can use {@link ngMock.$timeout `$timeout.flush()`} to
+* synchronously flush the queue of deferred functions.
+*
+* @param {function()} fn A function, whose execution should be delayed.
+* @param {number=} [delay=0] Delay in milliseconds.
+* @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise
+*   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.
+* @returns {Promise} Promise that will be resolved when the timeout is reached. The value this
+*   promise will be resolved with is the return value of the `fn` function.
+*
+*/
+function timeout(fn, delay, invokeApply) {
+var deferred = $q.defer(),
+promise = deferred.promise,
+skipApply = (isDefined(invokeApply) && !invokeApply),
+timeoutId;
+timeoutId = $browser.defer(function() {
+try {
+deferred.resolve(fn());
+} catch(e) {
+deferred.reject(e);
+$exceptionHandler(e);
+}
+finally {
+delete deferreds[promise.$$timeoutId];
+}
+if (!skipApply) $rootScope.$apply();
+}, delay);
+promise.$$timeoutId = timeoutId;
+deferreds[timeoutId] = deferred;
+return promise;
+}
+/**
+* @ngdoc method
+* @name $timeout#cancel
+*
+* @description
+* Cancels a task associated with the `promise`. As a result of this, the promise will be
+* resolved with a rejection.
+*
+* @param {Promise=} promise Promise returned by the `$timeout` function.
+* @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully
+*   canceled.
+*/
+timeout.cancel = function(promise) {
+if (promise && promise.$$timeoutId in deferreds) {
+deferreds[promise.$$timeoutId].reject('canceled');
+delete deferreds[promise.$$timeoutId];
+return $browser.defer.cancel(promise.$$timeoutId);
+}
+return false;
+};
+return timeout;
+}];
+}
+// NOTE:  The usage of window and document instead of $window and $document here is
+// deliberate.  This service depends on the specific behavior of anchor nodes created by the
+// browser (resolving and parsing URLs) that is unlikely to be provided by mock objects and
+// cause us to break tests.  In addition, when the browser resolves a URL for XHR, it
+// doesn't know about mocked locations and resolves URLs to the real document - which is
+// exactly the behavior needed here.  There is little value is mocking these out for this
+// service.
+var urlParsingNode = document.createElement("a");
+var originUrl = urlResolve(window.location.href, true);
+/**
+*
+* Implementation Notes for non-IE browsers
+* ----------------------------------------
+* Assigning a URL to the href property of an anchor DOM node, even one attached to the DOM,
+* results both in the normalizing and parsing of the URL.  Normalizing means that a relative
+* URL will be resolved into an absolute URL in the context of the application document.
+* Parsing means that the anchor node's host, hostname, protocol, port, pathname and related
+* properties are all populated to reflect the normalized URL.  This approach has wide
+* compatibility - Safari 1+, Mozilla 1+, Opera 7+,e etc.  See
+* http://www.aptana.com/reference/html/api/HTMLAnchorElement.html
+*
+* Implementation Notes for IE
+* ---------------------------
+* IE >= 8 and <= 10 normalizes the URL when assigned to the anchor node similar to the other
+* browsers.  However, the parsed components will not be set if the URL assigned did not specify
+* them.  (e.g. if you assign a.href = "foo", then a.protocol, a.host, etc. will be empty.)  We
+* work around that by performing the parsing in a 2nd step by taking a previously normalized
+* URL (e.g. by assigning to a.href) and assigning it a.href again.  This correctly populates the
+* properties such as protocol, hostname, port, etc.
+*
+* IE7 does not normalize the URL when assigned to an anchor node.  (Apparently, it does, if one
+* uses the inner HTML approach to assign the URL as part of an HTML snippet -
+* http://stackoverflow.com/a/472729)  However, setting img[src] does normalize the URL.
+* Unfortunately, setting img[src] to something like "javascript:foo" on IE throws an exception.
+* Since the primary usage for normalizing URLs is to sanitize such URLs, we can't use that
+* method and IE < 8 is unsupported.
+*
+* References:
+*   http://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorElement
+*   http://www.aptana.com/reference/html/api/HTMLAnchorElement.html
+*   http://url.spec.whatwg.org/#urlutils
+*   https://github.com/angular/angular.js/pull/2902
+*   http://james.padolsey.com/javascript/parsing-urls-with-the-dom/
+*
+* @function
+* @param {string} url The URL to be parsed.
+* @description Normalizes and parses a URL.
+* @returns {object} Returns the normalized URL as a dictionary.
+*
+*   | member name   | Description    |
+*   |---------------|----------------|
+*   | href          | A normalized version of the provided URL if it was not an absolute URL |
+*   | protocol      | The protocol including the trailing colon                              |
+*   | host          | The host and port (if the port is non-default) of the normalizedUrl    |
+*   | search        | The search params, minus the question mark                             |
+*   | hash          | The hash string, minus the hash symbol
+*   | hostname      | The hostname
+*   | port          | The port, without ":"
+*   | pathname      | The pathname, beginning with "/"
+*
+*/
+function urlResolve(url, base) {
+var href = url;
+if (msie) {
+// Normalize before parse.  Refer Implementation Notes on why this is
+// done in two steps on IE.
+urlParsingNode.setAttribute("href", href);
+href = urlParsingNode.href;
+}
+urlParsingNode.setAttribute('href', href);
+// urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils
+return {
+href: urlParsingNode.href,
+protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',
+host: urlParsingNode.host,
+search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '',
+hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',
+hostname: urlParsingNode.hostname,
+port: urlParsingNode.port,
+pathname: (urlParsingNode.pathname.charAt(0) === '/')
+? urlParsingNode.pathname
+: '/' + urlParsingNode.pathname
+};
+}
+/**
+* Parse a request URL and determine whether this is a same-origin request as the application document.
+*
+* @param {string|object} requestUrl The url of the request as a string that will be resolved
+* or a parsed URL object.
+* @returns {boolean} Whether the request is for the same origin as the application document.
+*/
+function urlIsSameOrigin(requestUrl) {
+var parsed = (isString(requestUrl)) ? urlResolve(requestUrl) : requestUrl;
+return (parsed.protocol === originUrl.protocol &&
+parsed.host === originUrl.host);
+}
+/**
+* @ngdoc service
+* @name $window
+*
+* @description
+* A reference to the browser's `window` object. While `window`
+* is globally available in JavaScript, it causes testability problems, because
+* it is a global variable. In angular we always refer to it through the
+* `$window` service, so it may be overridden, removed or mocked for testing.
+*
+* Expressions, like the one defined for the `ngClick` directive in the example
+* below, are evaluated with respect to the current scope.  Therefore, there is
+* no risk of inadvertently coding in a dependency on a global value in such an
+* expression.
+*
+* @example
+<example>
+<file name="index.html">
+<script>
+function Ctrl($scope, $window) {
+$scope.greeting = 'Hello, World!';
+$scope.doGreeting = function(greeting) {
+$window.alert(greeting);
+};
+}
+</script>
+<div ng-controller="Ctrl">
+<input type="text" ng-model="greeting" />
+<button ng-click="doGreeting(greeting)">ALERT</button>
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should display the greeting in the input box', function() {
+element(by.model('greeting')).sendKeys('Hello, E2E Tests');
+// If we click the button it will block the test runner
+// element(':button').click();
+});
+</file>
+</example>
+*/
+function $WindowProvider(){
+this.$get = valueFn(window);
+}
+/**
+* @ngdoc provider
+* @name $filterProvider
+* @description
+*
+* Filters are just functions which transform input to an output. However filters need to be
+* Dependency Injected. To achieve this a filter definition consists of a factory function which is
+* annotated with dependencies and is responsible for creating a filter function.
+*
+* ```js
+*   // Filter registration
+*   function MyModule($provide, $filterProvider) {
+*     // create a service to demonstrate injection (not always needed)
+*     $provide.value('greet', function(name){
+*       return 'Hello ' + name + '!';
+*     });
+*
+*     // register a filter factory which uses the
+*     // greet service to demonstrate DI.
+*     $filterProvider.register('greet', function(greet){
+*       // return the filter function which uses the greet service
+*       // to generate salutation
+*       return function(text) {
+*         // filters need to be forgiving so check input validity
+*         return text && greet(text) || text;
+*       };
+*     });
+*   }
+* ```
+*
+* The filter function is registered with the `$injector` under the filter name suffix with
+* `Filter`.
+*
+* ```js
+*   it('should be the same instance', inject(
+*     function($filterProvider) {
+*       $filterProvider.register('reverse', function(){
+*         return ...;
+*       });
+*     },
+*     function($filter, reverseFilter) {
+*       expect($filter('reverse')).toBe(reverseFilter);
+*     });
+* ```
+*
+*
+* For more information about how angular filters work, and how to create your own filters, see
+* {@link guide/filter Filters} in the Angular Developer Guide.
+*/
+/**
+* @ngdoc method
+* @name $filterProvider#register
+* @description
+* Register filter factory function.
+*
+* @param {String} name Name of the filter.
+* @param {Function} fn The filter factory function which is injectable.
+*/
+/**
+* @ngdoc service
+* @name $filter
+* @function
+* @description
+* Filters are used for formatting data displayed to the user.
+*
+* The general syntax in templates is as follows:
+*
+*         {{ expression [| filter_name[:parameter_value] ... ] }}
+*
+* @param {String} name Name of the filter function to retrieve
+* @return {Function} the filter function
+*/
+$FilterProvider.$inject = ['$provide'];
+function $FilterProvider($provide) {
+var suffix = 'Filter';
+/**
+* @ngdoc method
+* @name $controllerProvider#register
+* @param {string|Object} name Name of the filter function, or an object map of filters where
+*    the keys are the filter names and the values are the filter factories.
+* @returns {Object} Registered filter instance, or if a map of filters was provided then a map
+*    of the registered filter instances.
+*/
+function register(name, factory) {
+if(isObject(name)) {
+var filters = {};
+forEach(name, function(filter, key) {
+filters[key] = register(key, filter);
+});
+return filters;
+} else {
+return $provide.factory(name + suffix, factory);
+}
+}
+this.register = register;
+this.$get = ['$injector', function($injector) {
+return function(name) {
+return $injector.get(name + suffix);
+};
+}];
+////////////////////////////////////////
+/* global
+currencyFilter: false,
+dateFilter: false,
+filterFilter: false,
+jsonFilter: false,
+limitToFilter: false,
+lowercaseFilter: false,
+numberFilter: false,
+orderByFilter: false,
+uppercaseFilter: false,
+*/
+register('currency', currencyFilter);
+register('date', dateFilter);
+register('filter', filterFilter);
+register('json', jsonFilter);
+register('limitTo', limitToFilter);
+register('lowercase', lowercaseFilter);
+register('number', numberFilter);
+register('orderBy', orderByFilter);
+register('uppercase', uppercaseFilter);
+}
+/**
+* @ngdoc filter
+* @name filter
+* @function
+*
+* @description
+* Selects a subset of items from `array` and returns it as a new array.
+*
+* @param {Array} array The source array.
+* @param {string|Object|function()} expression The predicate to be used for selecting items from
+*   `array`.
+*
+*   Can be one of:
+*
+*   - `string`: The string is evaluated as an expression and the resulting value is used for substring match against
+*     the contents of the `array`. All strings or objects with string properties in `array` that contain this string
+*     will be returned. The predicate can be negated by prefixing the string with `!`.
+*
+*   - `Object`: A pattern object can be used to filter specific properties on objects contained
+*     by `array`. For example `{name:"M", phone:"1"}` predicate will return an array of items
+*     which have property `name` containing "M" and property `phone` containing "1". A special
+*     property name `$` can be used (as in `{$:"text"}`) to accept a match against any
+*     property of the object. That's equivalent to the simple substring match with a `string`
+*     as described above.
+*
+*   - `function(value)`: A predicate function can be used to write arbitrary filters. The function is
+*     called for each element of `array`. The final result is an array of those elements that
+*     the predicate returned true for.
+*
+* @param {function(actual, expected)|true|undefined} comparator Comparator which is used in
+*     determining if the expected value (from the filter expression) and actual value (from
+*     the object in the array) should be considered a match.
+*
+*   Can be one of:
+*
+*     - `function(actual, expected)`:
+*       The function will be given the object value and the predicate value to compare and
+*       should return true if the item should be included in filtered result.
+*
+*     - `true`: A shorthand for `function(actual, expected) { return angular.equals(expected, actual)}`.
+*       this is essentially strict comparison of expected and actual.
+*
+*     - `false|undefined`: A short hand for a function which will look for a substring match in case
+*       insensitive way.
+*
+* @example
+<example>
+<file name="index.html">
+<div ng-init="friends = [{name:'John', phone:'555-1276'},
+{name:'Mary', phone:'800-BIG-MARY'},
+{name:'Mike', phone:'555-4321'},
+{name:'Adam', phone:'555-5678'},
+{name:'Julie', phone:'555-8765'},
+{name:'Juliette', phone:'555-5678'}]"></div>
+Search: <input ng-model="searchText">
+<table id="searchTextResults">
+<tr><th>Name</th><th>Phone</th></tr>
+<tr ng-repeat="friend in friends | filter:searchText">
+<td>{{friend.name}}</td>
+<td>{{friend.phone}}</td>
+</tr>
+</table>
+<hr>
+Any: <input ng-model="search.$"> <br>
+Name only <input ng-model="search.name"><br>
+Phone only <input ng-model="search.phone"><br>
+Equality <input type="checkbox" ng-model="strict"><br>
+<table id="searchObjResults">
+<tr><th>Name</th><th>Phone</th></tr>
+<tr ng-repeat="friendObj in friends | filter:search:strict">
+<td>{{friendObj.name}}</td>
+<td>{{friendObj.phone}}</td>
+</tr>
+</table>
+</file>
+<file name="protractor.js" type="protractor">
+var expectFriendNames = function(expectedNames, key) {
+element.all(by.repeater(key + ' in friends').column(key + '.name')).then(function(arr) {
+arr.forEach(function(wd, i) {
+expect(wd.getText()).toMatch(expectedNames[i]);
+});
+});
+};
+it('should search across all fields when filtering with a string', function() {
+var searchText = element(by.model('searchText'));
+searchText.clear();
+searchText.sendKeys('m');
+expectFriendNames(['Mary', 'Mike', 'Adam'], 'friend');
+searchText.clear();
+searchText.sendKeys('76');
+expectFriendNames(['John', 'Julie'], 'friend');
+});
+it('should search in specific fields when filtering with a predicate object', function() {
+var searchAny = element(by.model('search.$'));
+searchAny.clear();
+searchAny.sendKeys('i');
+expectFriendNames(['Mary', 'Mike', 'Julie', 'Juliette'], 'friendObj');
+});
+it('should use a equal comparison when comparator is true', function() {
+var searchName = element(by.model('search.name'));
+var strict = element(by.model('strict'));
+searchName.clear();
+searchName.sendKeys('Julie');
+strict.click();
+expectFriendNames(['Julie'], 'friendObj');
+});
+</file>
+</example>
+*/
+function filterFilter() {
+return function(array, expression, comparator) {
+if (!isArray(array)) return array;
+var comparatorType = typeof(comparator),
+predicates = [];
+predicates.check = function(value) {
+for (var j = 0; j < predicates.length; j++) {
+if(!predicates[j](value)) {
+return false;
+}
+}
+return true;
+};
+if (comparatorType !== 'function') {
+if (comparatorType === 'boolean' && comparator) {
+comparator = function(obj, text) {
+return angular.equals(obj, text);
+};
+} else {
+comparator = function(obj, text) {
+if (obj && text && typeof obj === 'object' && typeof text === 'object') {
+for (var objKey in obj) {
+if (objKey.charAt(0) !== '$' && hasOwnProperty.call(obj, objKey) &&
+comparator(obj[objKey], text[objKey])) {
+return true;
+}
+}
+return false;
+}
+text = (''+text).toLowerCase();
+return (''+obj).toLowerCase().indexOf(text) > -1;
+};
+}
+}
+var search = function(obj, text){
+if (typeof text == 'string' && text.charAt(0) === '!') {
+return !search(obj, text.substr(1));
+}
+switch (typeof obj) {
+case "boolean":
+case "number":
+case "string":
+return comparator(obj, text);
+case "object":
+switch (typeof text) {
+case "object":
+return comparator(obj, text);
+default:
+for ( var objKey in obj) {
+if (objKey.charAt(0) !== '$' && search(obj[objKey], text)) {
+return true;
+}
+}
+break;
+}
+return false;
+case "array":
+for ( var i = 0; i < obj.length; i++) {
+if (search(obj[i], text)) {
+return true;
+}
+}
+return false;
+default:
+return false;
+}
+};
+switch (typeof expression) {
+case "boolean":
+case "number":
+case "string":
+// Set up expression object and fall through
+expression = {$:expression};
+// jshint -W086
+case "object":
+// jshint +W086
+for (var key in expression) {
+(function(path) {
+if (typeof expression[path] == 'undefined') return;
+predicates.push(function(value) {
+return search(path == '$' ? value : (value && value[path]), expression[path]);
+});
+})(key);
+}
+break;
+case 'function':
+predicates.push(expression);
+break;
+default:
+return array;
+}
+var filtered = [];
+for ( var j = 0; j < array.length; j++) {
+var value = array[j];
+if (predicates.check(value)) {
+filtered.push(value);
+}
+}
+return filtered;
+};
+}
+/**
+* @ngdoc filter
+* @name currency
+* @function
+*
+* @description
+* Formats a number as a currency (ie $1,234.56). When no currency symbol is provided, default
+* symbol for current locale is used.
+*
+* @param {number} amount Input to filter.
+* @param {string=} symbol Currency symbol or identifier to be displayed.
+* @returns {string} Formatted number.
+*
+*
+* @example
+<example>
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.amount = 1234.56;
+}
+</script>
+<div ng-controller="Ctrl">
+<input type="number" ng-model="amount"> <br>
+default currency symbol ($): <span id="currency-default">{{amount | currency}}</span><br>
+custom currency identifier (USD$): <span>{{amount | currency:"USD$"}}</span>
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should init with 1234.56', function() {
+expect(element(by.id('currency-default')).getText()).toBe('$1,234.56');
+expect(element(by.binding('amount | currency:"USD$"')).getText()).toBe('USD$1,234.56');
+});
+it('should update', function() {
+if (browser.params.browser == 'safari') {
+// Safari does not understand the minus key. See
+// https://github.com/angular/protractor/issues/481
+return;
+}
+element(by.model('amount')).clear();
+element(by.model('amount')).sendKeys('-1234');
+expect(element(by.id('currency-default')).getText()).toBe('($1,234.00)');
+expect(element(by.binding('amount | currency:"USD$"')).getText()).toBe('(USD$1,234.00)');
+});
+</file>
+</example>
+*/
+currencyFilter.$inject = ['$locale'];
+function currencyFilter($locale) {
+var formats = $locale.NUMBER_FORMATS;
+return function(amount, currencySymbol){
+if (isUndefined(currencySymbol)) currencySymbol = formats.CURRENCY_SYM;
+return formatNumber(amount, formats.PATTERNS[1], formats.GROUP_SEP, formats.DECIMAL_SEP, 2).
+replace(/\u00A4/g, currencySymbol);
+};
+}
+/**
+* @ngdoc filter
+* @name number
+* @function
+*
+* @description
+* Formats a number as text.
+*
+* If the input is not a number an empty string is returned.
+*
+* @param {number|string} number Number to format.
+* @param {(number|string)=} fractionSize Number of decimal places to round the number to.
+* If this is not provided then the fraction size is computed from the current locale's number
+* formatting pattern. In the case of the default locale, it will be 3.
+* @returns {string} Number rounded to decimalPlaces and places a “,” after each third digit.
+*
+* @example
+<example>
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.val = 1234.56789;
+}
+</script>
+<div ng-controller="Ctrl">
+Enter number: <input ng-model='val'><br>
+Default formatting: <span id='number-default'>{{val | number}}</span><br>
+No fractions: <span>{{val | number:0}}</span><br>
+Negative number: <span>{{-val | number:4}}</span>
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should format numbers', function() {
+expect(element(by.id('number-default')).getText()).toBe('1,234.568');
+expect(element(by.binding('val | number:0')).getText()).toBe('1,235');
+expect(element(by.binding('-val | number:4')).getText()).toBe('-1,234.5679');
+});
+it('should update', function() {
+element(by.model('val')).clear();
+element(by.model('val')).sendKeys('3374.333');
+expect(element(by.id('number-default')).getText()).toBe('3,374.333');
+expect(element(by.binding('val | number:0')).getText()).toBe('3,374');
+expect(element(by.binding('-val | number:4')).getText()).toBe('-3,374.3330');
+});
+</file>
+</example>
+*/
+numberFilter.$inject = ['$locale'];
+function numberFilter($locale) {
+var formats = $locale.NUMBER_FORMATS;
+return function(number, fractionSize) {
+return formatNumber(number, formats.PATTERNS[0], formats.GROUP_SEP, formats.DECIMAL_SEP,
+fractionSize);
+};
+}
+var DECIMAL_SEP = '.';
+function formatNumber(number, pattern, groupSep, decimalSep, fractionSize) {
+if (number == null || !isFinite(number) || isObject(number)) return '';
+var isNegative = number < 0;
+number = Math.abs(number);
+var numStr = number + '',
+formatedText = '',
+parts = [];
+var hasExponent = false;
+if (numStr.indexOf('e') !== -1) {
+var match = numStr.match(/([\d\.]+)e(-?)(\d+)/);
+if (match && match[2] == '-' && match[3] > fractionSize + 1) {
+numStr = '0';
+} else {
+formatedText = numStr;
+hasExponent = true;
+}
+}
+if (!hasExponent) {
+var fractionLen = (numStr.split(DECIMAL_SEP)[1] || '').length;
+// determine fractionSize if it is not specified
+if (isUndefined(fractionSize)) {
+fractionSize = Math.min(Math.max(pattern.minFrac, fractionLen), pattern.maxFrac);
+}
+var pow = Math.pow(10, fractionSize);
+number = Math.round(number * pow) / pow;
+var fraction = ('' + number).split(DECIMAL_SEP);
+var whole = fraction[0];
+fraction = fraction[1] || '';
+var i, pos = 0,
+lgroup = pattern.lgSize,
+group = pattern.gSize;
+if (whole.length >= (lgroup + group)) {
+pos = whole.length - lgroup;
+for (i = 0; i < pos; i++) {
+if ((pos - i)%group === 0 && i !== 0) {
+formatedText += groupSep;
+}
+formatedText += whole.charAt(i);
+}
+}
+for (i = pos; i < whole.length; i++) {
+if ((whole.length - i)%lgroup === 0 && i !== 0) {
+formatedText += groupSep;
+}
+formatedText += whole.charAt(i);
+}
+// format fraction part.
+while(fraction.length < fractionSize) {
+fraction += '0';
+}
+if (fractionSize && fractionSize !== "0") formatedText += decimalSep + fraction.substr(0, fractionSize);
+} else {
+if (fractionSize > 0 && number > -1 && number < 1) {
+formatedText = number.toFixed(fractionSize);
+}
+}
+parts.push(isNegative ? pattern.negPre : pattern.posPre);
+parts.push(formatedText);
+parts.push(isNegative ? pattern.negSuf : pattern.posSuf);
+return parts.join('');
+}
+function padNumber(num, digits, trim) {
+var neg = '';
+if (num < 0) {
+neg =  '-';
+num = -num;
+}
+num = '' + num;
+while(num.length < digits) num = '0' + num;
+if (trim)
+num = num.substr(num.length - digits);
+return neg + num;
+}
+function dateGetter(name, size, offset, trim) {
+offset = offset || 0;
+return function(date) {
+var value = date['get' + name]();
+if (offset > 0 || value > -offset)
+value += offset;
+if (value === 0 && offset == -12 ) value = 12;
+return padNumber(value, size, trim);
+};
+}
+function dateStrGetter(name, shortForm) {
+return function(date, formats) {
+var value = date['get' + name]();
+var get = uppercase(shortForm ? ('SHORT' + name) : name);
+return formats[get][value];
+};
+}
+function timeZoneGetter(date) {
+var zone = -1 * date.getTimezoneOffset();
+var paddedZone = (zone >= 0) ? "+" : "";
+paddedZone += padNumber(Math[zone > 0 ? 'floor' : 'ceil'](zone / 60), 2) +
+padNumber(Math.abs(zone % 60), 2);
+return paddedZone;
+}
+function ampmGetter(date, formats) {
+return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1];
+}
+var DATE_FORMATS = {
+yyyy: dateGetter('FullYear', 4),
+yy: dateGetter('FullYear', 2, 0, true),
+y: dateGetter('FullYear', 1),
+MMMM: dateStrGetter('Month'),
+MMM: dateStrGetter('Month', true),
+MM: dateGetter('Month', 2, 1),
+M: dateGetter('Month', 1, 1),
+dd: dateGetter('Date', 2),
+d: dateGetter('Date', 1),
+HH: dateGetter('Hours', 2),
+H: dateGetter('Hours', 1),
+hh: dateGetter('Hours', 2, -12),
+h: dateGetter('Hours', 1, -12),
+mm: dateGetter('Minutes', 2),
+m: dateGetter('Minutes', 1),
+ss: dateGetter('Seconds', 2),
+s: dateGetter('Seconds', 1),
+// while ISO 8601 requires fractions to be prefixed with `.` or `,`
+// we can be just safely rely on using `sss` since we currently don't support single or two digit fractions
+sss: dateGetter('Milliseconds', 3),
+EEEE: dateStrGetter('Day'),
+EEE: dateStrGetter('Day', true),
+a: ampmGetter,
+Z: timeZoneGetter
+};
+var DATE_FORMATS_SPLIT = /((?:[^yMdHhmsaZE']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d+|H+|h+|m+|s+|a|Z))(.*)/,
+NUMBER_STRING = /^\-?\d+$/;
+/**
+* @ngdoc filter
+* @name date
+* @function
+*
+* @description
+*   Formats `date` to a string based on the requested `format`.
+*
+*   `format` string can be composed of the following elements:
+*
+*   * `'yyyy'`: 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010)
+*   * `'yy'`: 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)
+*   * `'y'`: 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199)
+*   * `'MMMM'`: Month in year (January-December)
+*   * `'MMM'`: Month in year (Jan-Dec)
+*   * `'MM'`: Month in year, padded (01-12)
+*   * `'M'`: Month in year (1-12)
+*   * `'dd'`: Day in month, padded (01-31)
+*   * `'d'`: Day in month (1-31)
+*   * `'EEEE'`: Day in Week,(Sunday-Saturday)
+*   * `'EEE'`: Day in Week, (Sun-Sat)
+*   * `'HH'`: Hour in day, padded (00-23)
+*   * `'H'`: Hour in day (0-23)
+*   * `'hh'`: Hour in am/pm, padded (01-12)
+*   * `'h'`: Hour in am/pm, (1-12)
+*   * `'mm'`: Minute in hour, padded (00-59)
+*   * `'m'`: Minute in hour (0-59)
+*   * `'ss'`: Second in minute, padded (00-59)
+*   * `'s'`: Second in minute (0-59)
+*   * `'.sss' or ',sss'`: Millisecond in second, padded (000-999)
+*   * `'a'`: am/pm marker
+*   * `'Z'`: 4 digit (+sign) representation of the timezone offset (-1200-+1200)
+*
+*   `format` string can also be one of the following predefined
+*   {@link guide/i18n localizable formats}:
+*
+*   * `'medium'`: equivalent to `'MMM d, y h:mm:ss a'` for en_US locale
+*     (e.g. Sep 3, 2010 12:05:08 pm)
+*   * `'short'`: equivalent to `'M/d/yy h:mm a'` for en_US  locale (e.g. 9/3/10 12:05 pm)
+*   * `'fullDate'`: equivalent to `'EEEE, MMMM d,y'` for en_US  locale
+*     (e.g. Friday, September 3, 2010)
+*   * `'longDate'`: equivalent to `'MMMM d, y'` for en_US  locale (e.g. September 3, 2010)
+*   * `'mediumDate'`: equivalent to `'MMM d, y'` for en_US  locale (e.g. Sep 3, 2010)
+*   * `'shortDate'`: equivalent to `'M/d/yy'` for en_US locale (e.g. 9/3/10)
+*   * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 pm)
+*   * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 pm)
+*
+*   `format` string can contain literal values. These need to be quoted with single quotes (e.g.
+*   `"h 'in the morning'"`). In order to output single quote, use two single quotes in a sequence
+*   (e.g. `"h 'o''clock'"`).
+*
+* @param {(Date|number|string)} date Date to format either as Date object, milliseconds (string or
+*    number) or various ISO 8601 datetime string formats (e.g. yyyy-MM-ddTHH:mm:ss.SSSZ and its
+*    shorter versions like yyyy-MM-ddTHH:mmZ, yyyy-MM-dd or yyyyMMddTHHmmssZ). If no timezone is
+*    specified in the string input, the time is considered to be in the local timezone.
+* @param {string=} format Formatting rules (see Description). If not specified,
+*    `mediumDate` is used.
+* @returns {string} Formatted string or the input if input is not recognized as date/millis.
+*
+* @example
+<example>
+<file name="index.html">
+<span ng-non-bindable>{{1288323623006 | date:'medium'}}</span>:
+<span>{{1288323623006 | date:'medium'}}</span><br>
+<span ng-non-bindable>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span>:
+<span>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span><br>
+<span ng-non-bindable>{{1288323623006 | date:'MM/dd/yyyy @ h:mma'}}</span>:
+<span>{{'1288323623006' | date:'MM/dd/yyyy @ h:mma'}}</span><br>
+</file>
+<file name="protractor.js" type="protractor">
+it('should format date', function() {
+expect(element(by.binding("1288323623006 | date:'medium'")).getText()).
+toMatch(/Oct 2\d, 2010 \d{1,2}:\d{2}:\d{2} (AM|PM)/);
+expect(element(by.binding("1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'")).getText()).
+toMatch(/2010\-10\-2\d \d{2}:\d{2}:\d{2} (\-|\+)?\d{4}/);
+expect(element(by.binding("'1288323623006' | date:'MM/dd/yyyy @ h:mma'")).getText()).
+toMatch(/10\/2\d\/2010 @ \d{1,2}:\d{2}(AM|PM)/);
+});
+</file>
+</example>
+*/
+dateFilter.$inject = ['$locale'];
+function dateFilter($locale) {
+var R_ISO8601_STR = /^(\d{4})-?(\d\d)-?(\d\d)(?:T(\d\d)(?::?(\d\d)(?::?(\d\d)(?:\.(\d+))?)?)?(Z|([+-])(\d\d):?(\d\d))?)?$/;
+// 1        2       3         4          5          6          7          8  9     10      11
+function jsonStringToDate(string) {
+var match;
+if (match = string.match(R_ISO8601_STR)) {
+var date = new Date(0),
+tzHour = 0,
+tzMin  = 0,
+dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear,
+timeSetter = match[8] ? date.setUTCHours : date.setHours;
+if (match[9]) {
+tzHour = int(match[9] + match[10]);
+tzMin = int(match[9] + match[11]);
+}
+dateSetter.call(date, int(match[1]), int(match[2]) - 1, int(match[3]));
+var h = int(match[4]||0) - tzHour;
+var m = int(match[5]||0) - tzMin;
+var s = int(match[6]||0);
+var ms = Math.round(parseFloat('0.' + (match[7]||0)) * 1000);
+timeSetter.call(date, h, m, s, ms);
+return date;
+}
+return string;
+}
+return function(date, format) {
+var text = '',
+parts = [],
+fn, match;
+format = format || 'mediumDate';
+format = $locale.DATETIME_FORMATS[format] || format;
+if (isString(date)) {
+if (NUMBER_STRING.test(date)) {
+date = int(date);
+} else {
+date = jsonStringToDate(date);
+}
+}
+if (isNumber(date)) {
+date = new Date(date);
+}
+if (!isDate(date)) {
+return date;
+}
+while(format) {
+match = DATE_FORMATS_SPLIT.exec(format);
+if (match) {
+parts = concat(parts, match, 1);
+format = parts.pop();
+} else {
+parts.push(format);
+format = null;
+}
+}
+forEach(parts, function(value){
+fn = DATE_FORMATS[value];
+text += fn ? fn(date, $locale.DATETIME_FORMATS)
+: value.replace(/(^'|'$)/g, '').replace(/''/g, "'");
+});
+return text;
+};
+}
+/**
+* @ngdoc filter
+* @name json
+* @function
+*
+* @description
+*   Allows you to convert a JavaScript object into JSON string.
+*
+*   This filter is mostly useful for debugging. When using the double curly {{value}} notation
+*   the binding is automatically converted to JSON.
+*
+* @param {*} object Any JavaScript object (including arrays and primitive types) to filter.
+* @returns {string} JSON string.
+*
+*
+* @example
+<example>
+<file name="index.html">
+<pre>{{ {'name':'value'} | json }}</pre>
+</file>
+<file name="protractor.js" type="protractor">
+it('should jsonify filtered objects', function() {
+expect(element(by.binding("{'name':'value'}")).getText()).toMatch(/\{\n  "name": ?"value"\n}/);
+});
+</file>
+</example>
+*
+*/
+function jsonFilter() {
+return function(object) {
+return toJson(object, true);
+};
+}
+/**
+* @ngdoc filter
+* @name lowercase
+* @function
+* @description
+* Converts string to lowercase.
+* @see angular.lowercase
+*/
+var lowercaseFilter = valueFn(lowercase);
+/**
+* @ngdoc filter
+* @name uppercase
+* @function
+* @description
+* Converts string to uppercase.
+* @see angular.uppercase
+*/
+var uppercaseFilter = valueFn(uppercase);
+/**
+* @ngdoc filter
+* @name limitTo
+* @function
+*
+* @description
+* Creates a new array or string containing only a specified number of elements. The elements
+* are taken from either the beginning or the end of the source array or string, as specified by
+* the value and sign (positive or negative) of `limit`.
+*
+* @param {Array|string} input Source array or string to be limited.
+* @param {string|number} limit The length of the returned array or string. If the `limit` number
+*     is positive, `limit` number of items from the beginning of the source array/string are copied.
+*     If the number is negative, `limit` number  of items from the end of the source array/string
+*     are copied. The `limit` will be trimmed if it exceeds `array.length`
+* @returns {Array|string} A new sub-array or substring of length `limit` or less if input array
+*     had less than `limit` elements.
+*
+* @example
+<example>
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.numbers = [1,2,3,4,5,6,7,8,9];
+$scope.letters = "abcdefghi";
+$scope.numLimit = 3;
+$scope.letterLimit = 3;
+}
+</script>
+<div ng-controller="Ctrl">
+Limit {{numbers}} to: <input type="integer" ng-model="numLimit">
+<p>Output numbers: {{ numbers | limitTo:numLimit }}</p>
+Limit {{letters}} to: <input type="integer" ng-model="letterLimit">
+<p>Output letters: {{ letters | limitTo:letterLimit }}</p>
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+var numLimitInput = element(by.model('numLimit'));
+var letterLimitInput = element(by.model('letterLimit'));
+var limitedNumbers = element(by.binding('numbers | limitTo:numLimit'));
+var limitedLetters = element(by.binding('letters | limitTo:letterLimit'));
+it('should limit the number array to first three items', function() {
+expect(numLimitInput.getAttribute('value')).toBe('3');
+expect(letterLimitInput.getAttribute('value')).toBe('3');
+expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3]');
+expect(limitedLetters.getText()).toEqual('Output letters: abc');
+});
+it('should update the output when -3 is entered', function() {
+numLimitInput.clear();
+numLimitInput.sendKeys('-3');
+letterLimitInput.clear();
+letterLimitInput.sendKeys('-3');
+expect(limitedNumbers.getText()).toEqual('Output numbers: [7,8,9]');
+expect(limitedLetters.getText()).toEqual('Output letters: ghi');
+});
+it('should not exceed the maximum size of input array', function() {
+numLimitInput.clear();
+numLimitInput.sendKeys('100');
+letterLimitInput.clear();
+letterLimitInput.sendKeys('100');
+expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3,4,5,6,7,8,9]');
+expect(limitedLetters.getText()).toEqual('Output letters: abcdefghi');
+});
+</file>
+</example>
+*/
+function limitToFilter(){
+return function(input, limit) {
+if (!isArray(input) && !isString(input)) return input;
+limit = int(limit);
+if (isString(input)) {
+//NaN check on limit
+if (limit) {
+return limit >= 0 ? input.slice(0, limit) : input.slice(limit, input.length);
+} else {
+return "";
+}
+}
+var out = [],
+i, n;
+// if abs(limit) exceeds maximum length, trim it
+if (limit > input.length)
+limit = input.length;
+else if (limit < -input.length)
+limit = -input.length;
+if (limit > 0) {
+i = 0;
+n = limit;
+} else {
+i = input.length + limit;
+n = input.length;
+}
+for (; i<n; i++) {
+out.push(input[i]);
+}
+return out;
+};
+}
+/**
+* @ngdoc filter
+* @name orderBy
+* @function
+*
+* @description
+* Orders a specified `array` by the `expression` predicate.
+*
+* @param {Array} array The array to sort.
+* @param {function(*)|string|Array.<(function(*)|string)>} expression A predicate to be
+*    used by the comparator to determine the order of elements.
+*
+*    Can be one of:
+*
+*    - `function`: Getter function. The result of this function will be sorted using the
+*      `<`, `=`, `>` operator.
+*    - `string`: An Angular expression which evaluates to an object to order by, such as 'name'
+*      to sort by a property called 'name'. Optionally prefixed with `+` or `-` to control
+*      ascending or descending sort order (for example, +name or -name).
+*    - `Array`: An array of function or string predicates. The first predicate in the array
+*      is used for sorting, but when two items are equivalent, the next predicate is used.
+*
+* @param {boolean=} reverse Reverse the order the array.
+* @returns {Array} Sorted copy of the source array.
+*
+* @example
+<example>
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.friends =
+[{name:'John', phone:'555-1212', age:10},
+{name:'Mary', phone:'555-9876', age:19},
+{name:'Mike', phone:'555-4321', age:21},
+{name:'Adam', phone:'555-5678', age:35},
+{name:'Julie', phone:'555-8765', age:29}]
+$scope.predicate = '-age';
+}
+</script>
+<div ng-controller="Ctrl">
+<pre>Sorting predicate = {{predicate}}; reverse = {{reverse}}</pre>
+<hr/>
+[ <a href="" ng-click="predicate=''">unsorted</a> ]
+<table class="friend">
+<tr>
+<th><a href="" ng-click="predicate = 'name'; reverse=false">Name</a>
+(<a href="" ng-click="predicate = '-name'; reverse=false">^</a>)</th>
+<th><a href="" ng-click="predicate = 'phone'; reverse=!reverse">Phone Number</a></th>
+<th><a href="" ng-click="predicate = 'age'; reverse=!reverse">Age</a></th>
+</tr>
+<tr ng-repeat="friend in friends | orderBy:predicate:reverse">
+<td>{{friend.name}}</td>
+<td>{{friend.phone}}</td>
+<td>{{friend.age}}</td>
+</tr>
+</table>
+</div>
+</file>
+</example>
+*/
+orderByFilter.$inject = ['$parse'];
+function orderByFilter($parse){
+return function(array, sortPredicate, reverseOrder) {
+if (!isArray(array)) return array;
+if (!sortPredicate) return array;
+sortPredicate = isArray(sortPredicate) ? sortPredicate: [sortPredicate];
+sortPredicate = map(sortPredicate, function(predicate){
+var descending = false, get = predicate || identity;
+if (isString(predicate)) {
+if ((predicate.charAt(0) == '+' || predicate.charAt(0) == '-')) {
+descending = predicate.charAt(0) == '-';
+predicate = predicate.substring(1);
+}
+get = $parse(predicate);
+if (get.constant) {
+var key = get();
+return reverseComparator(function(a,b) {
+return compare(a[key], b[key]);
+}, descending);
+}
+}
+return reverseComparator(function(a,b){
+return compare(get(a),get(b));
+}, descending);
+});
+var arrayCopy = [];
+for ( var i = 0; i < array.length; i++) { arrayCopy.push(array[i]); }
+return arrayCopy.sort(reverseComparator(comparator, reverseOrder));
+function comparator(o1, o2){
+for ( var i = 0; i < sortPredicate.length; i++) {
+var comp = sortPredicate[i](o1, o2);
+if (comp !== 0) return comp;
+}
+return 0;
+}
+function reverseComparator(comp, descending) {
+return toBoolean(descending)
+? function(a,b){return comp(b,a);}
+: comp;
+}
+function compare(v1, v2){
+var t1 = typeof v1;
+var t2 = typeof v2;
+if (t1 == t2) {
+if (t1 == "string") {
+v1 = v1.toLowerCase();
+v2 = v2.toLowerCase();
+}
+if (v1 === v2) return 0;
+return v1 < v2 ? -1 : 1;
+} else {
+return t1 < t2 ? -1 : 1;
+}
+}
+};
+}
+function ngDirective(directive) {
+if (isFunction(directive)) {
+directive = {
+link: directive
+};
+}
+directive.restrict = directive.restrict || 'AC';
+return valueFn(directive);
+}
+/**
+* @ngdoc directive
+* @name a
+* @restrict E
+*
+* @description
+* Modifies the default behavior of the html A tag so that the default action is prevented when
+* the href attribute is empty.
+*
+* This change permits the easy creation of action links with the `ngClick` directive
+* without changing the location or causing page reloads, e.g.:
+* `<a href="" ng-click="list.addItem()">Add Item</a>`
+*/
+var htmlAnchorDirective = valueFn({
+restrict: 'E',
+compile: function(element, attr) {
+if (msie <= 8) {
+// turn <a href ng-click="..">link</a> into a stylable link in IE
+// but only if it doesn't have name attribute, in which case it's an anchor
+if (!attr.href && !attr.name) {
+attr.$set('href', '');
+}
+// add a comment node to anchors to workaround IE bug that causes element content to be reset
+// to new attribute content if attribute is updated with value containing @ and element also
+// contains value with @
+// see issue #1949
+element.append(document.createComment('IE fix'));
+}
+if (!attr.href && !attr.xlinkHref && !attr.name) {
+return function(scope, element) {
+// SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute.
+var href = toString.call(element.prop('href')) === '[object SVGAnimatedString]' ?
+'xlink:href' : 'href';
+element.on('click', function(event){
+// if we have no href url, then don't navigate anywhere.
+if (!element.attr(href)) {
+event.preventDefault();
+}
+});
+};
+}
+}
+});
+/**
+* @ngdoc directive
+* @name ngHref
+* @restrict A
+* @priority 99
+*
+* @description
+* Using Angular markup like `{{hash}}` in an href attribute will
+* make the link go to the wrong URL if the user clicks it before
+* Angular has a chance to replace the `{{hash}}` markup with its
+* value. Until Angular replaces the markup the link will be broken
+* and will most likely return a 404 error.
+*
+* The `ngHref` directive solves this problem.
+*
+* The wrong way to write it:
+* ```html
+* <a href="http://www.gravatar.com/avatar/{{hash}}"/>
+* ```
+*
+* The correct way to write it:
+* ```html
+* <a ng-href="http://www.gravatar.com/avatar/{{hash}}"/>
+* ```
+*
+* @element A
+* @param {template} ngHref any string which can contain `{{}}` markup.
+*
+* @example
+* This example shows various combinations of `href`, `ng-href` and `ng-click` attributes
+* in links and their different behaviors:
+<example>
+<file name="index.html">
+<input ng-model="value" /><br />
+<a id="link-1" href ng-click="value = 1">link 1</a> (link, don't reload)<br />
+<a id="link-2" href="" ng-click="value = 2">link 2</a> (link, don't reload)<br />
+<a id="link-3" ng-href="/{{'123'}}">link 3</a> (link, reload!)<br />
+<a id="link-4" href="" name="xx" ng-click="value = 4">anchor</a> (link, don't reload)<br />
+<a id="link-5" name="xxx" ng-click="value = 5">anchor</a> (no link)<br />
+<a id="link-6" ng-href="{{value}}">link</a> (link, change location)
+</file>
+<file name="protractor.js" type="protractor">
+it('should execute ng-click but not reload when href without value', function() {
+element(by.id('link-1')).click();
+expect(element(by.model('value')).getAttribute('value')).toEqual('1');
+expect(element(by.id('link-1')).getAttribute('href')).toBe('');
+});
+it('should execute ng-click but not reload when href empty string', function() {
+element(by.id('link-2')).click();
+expect(element(by.model('value')).getAttribute('value')).toEqual('2');
+expect(element(by.id('link-2')).getAttribute('href')).toBe('');
+});
+it('should execute ng-click and change url when ng-href specified', function() {
+expect(element(by.id('link-3')).getAttribute('href')).toMatch(/\/123$/);
+element(by.id('link-3')).click();
+// At this point, we navigate away from an Angular page, so we need
+// to use browser.driver to get the base webdriver.
+browser.wait(function() {
+return browser.driver.getCurrentUrl().then(function(url) {
+return url.match(/\/123$/);
+});
+}, 1000, 'page should navigate to /123');
+});
+xit('should execute ng-click but not reload when href empty string and name specified', function() {
+element(by.id('link-4')).click();
+expect(element(by.model('value')).getAttribute('value')).toEqual('4');
+expect(element(by.id('link-4')).getAttribute('href')).toBe('');
+});
+it('should execute ng-click but not reload when no href but name specified', function() {
+element(by.id('link-5')).click();
+expect(element(by.model('value')).getAttribute('value')).toEqual('5');
+expect(element(by.id('link-5')).getAttribute('href')).toBe(null);
+});
+it('should only change url when only ng-href', function() {
+element(by.model('value')).clear();
+element(by.model('value')).sendKeys('6');
+expect(element(by.id('link-6')).getAttribute('href')).toMatch(/\/6$/);
+element(by.id('link-6')).click();
+// At this point, we navigate away from an Angular page, so we need
+// to use browser.driver to get the base webdriver.
+browser.wait(function() {
+return browser.driver.getCurrentUrl().then(function(url) {
+return url.match(/\/6$/);
+});
+}, 1000, 'page should navigate to /6');
+});
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngSrc
+* @restrict A
+* @priority 99
+*
+* @description
+* Using Angular markup like `{{hash}}` in a `src` attribute doesn't
+* work right: The browser will fetch from the URL with the literal
+* text `{{hash}}` until Angular replaces the expression inside
+* `{{hash}}`. The `ngSrc` directive solves this problem.
+*
+* The buggy way to write it:
+* ```html
+* <img src="http://www.gravatar.com/avatar/{{hash}}"/>
+* ```
+*
+* The correct way to write it:
+* ```html
+* <img ng-src="http://www.gravatar.com/avatar/{{hash}}"/>
+* ```
+*
+* @element IMG
+* @param {template} ngSrc any string which can contain `{{}}` markup.
+*/
+/**
+* @ngdoc directive
+* @name ngSrcset
+* @restrict A
+* @priority 99
+*
+* @description
+* Using Angular markup like `{{hash}}` in a `srcset` attribute doesn't
+* work right: The browser will fetch from the URL with the literal
+* text `{{hash}}` until Angular replaces the expression inside
+* `{{hash}}`. The `ngSrcset` directive solves this problem.
+*
+* The buggy way to write it:
+* ```html
+* <img srcset="http://www.gravatar.com/avatar/{{hash}} 2x"/>
+* ```
+*
+* The correct way to write it:
+* ```html
+* <img ng-srcset="http://www.gravatar.com/avatar/{{hash}} 2x"/>
+* ```
+*
+* @element IMG
+* @param {template} ngSrcset any string which can contain `{{}}` markup.
+*/
+/**
+* @ngdoc directive
+* @name ngDisabled
+* @restrict A
+* @priority 100
+*
+* @description
+*
+* The following markup will make the button enabled on Chrome/Firefox but not on IE8 and older IEs:
+* ```html
+* <div ng-init="scope = { isDisabled: false }">
+*  <button disabled="{{scope.isDisabled}}">Disabled</button>
+* </div>
+* ```
+*
+* The HTML specification does not require browsers to preserve the values of boolean attributes
+* such as disabled. (Their presence means true and their absence means false.)
+* If we put an Angular interpolation expression into such an attribute then the
+* binding information would be lost when the browser removes the attribute.
+* The `ngDisabled` directive solves this problem for the `disabled` attribute.
+* This complementary directive is not removed by the browser and so provides
+* a permanent reliable place to store the binding information.
+*
+* @example
+<example>
+<file name="index.html">
+Click me to toggle: <input type="checkbox" ng-model="checked"><br/>
+<button ng-model="button" ng-disabled="checked">Button</button>
+</file>
+<file name="protractor.js" type="protractor">
+it('should toggle button', function() {
+expect(element(by.css('button')).getAttribute('disabled')).toBeFalsy();
+element(by.model('checked')).click();
+expect(element(by.css('button')).getAttribute('disabled')).toBeTruthy();
+});
+</file>
+</example>
+*
+* @element INPUT
+* @param {expression} ngDisabled If the {@link guide/expression expression} is truthy,
+*     then special attribute "disabled" will be set on the element
+*/
+/**
+* @ngdoc directive
+* @name ngChecked
+* @restrict A
+* @priority 100
+*
+* @description
+* The HTML specification does not require browsers to preserve the values of boolean attributes
+* such as checked. (Their presence means true and their absence means false.)
+* If we put an Angular interpolation expression into such an attribute then the
+* binding information would be lost when the browser removes the attribute.
+* The `ngChecked` directive solves this problem for the `checked` attribute.
+* This complementary directive is not removed by the browser and so provides
+* a permanent reliable place to store the binding information.
+* @example
+<example>
+<file name="index.html">
+Check me to check both: <input type="checkbox" ng-model="master"><br/>
+<input id="checkSlave" type="checkbox" ng-checked="master">
+</file>
+<file name="protractor.js" type="protractor">
+it('should check both checkBoxes', function() {
+expect(element(by.id('checkSlave')).getAttribute('checked')).toBeFalsy();
+element(by.model('master')).click();
+expect(element(by.id('checkSlave')).getAttribute('checked')).toBeTruthy();
+});
+</file>
+</example>
+*
+* @element INPUT
+* @param {expression} ngChecked If the {@link guide/expression expression} is truthy,
+*     then special attribute "checked" will be set on the element
+*/
+/**
+* @ngdoc directive
+* @name ngReadonly
+* @restrict A
+* @priority 100
+*
+* @description
+* The HTML specification does not require browsers to preserve the values of boolean attributes
+* such as readonly. (Their presence means true and their absence means false.)
+* If we put an Angular interpolation expression into such an attribute then the
+* binding information would be lost when the browser removes the attribute.
+* The `ngReadonly` directive solves this problem for the `readonly` attribute.
+* This complementary directive is not removed by the browser and so provides
+* a permanent reliable place to store the binding information.
+* @example
+<example>
+<file name="index.html">
+Check me to make text readonly: <input type="checkbox" ng-model="checked"><br/>
+<input type="text" ng-readonly="checked" value="I'm Angular"/>
+</file>
+<file name="protractor.js" type="protractor">
+it('should toggle readonly attr', function() {
+expect(element(by.css('[type="text"]')).getAttribute('readonly')).toBeFalsy();
+element(by.model('checked')).click();
+expect(element(by.css('[type="text"]')).getAttribute('readonly')).toBeTruthy();
+});
+</file>
+</example>
+*
+* @element INPUT
+* @param {expression} ngReadonly If the {@link guide/expression expression} is truthy,
+*     then special attribute "readonly" will be set on the element
+*/
+/**
+* @ngdoc directive
+* @name ngSelected
+* @restrict A
+* @priority 100
+*
+* @description
+* The HTML specification does not require browsers to preserve the values of boolean attributes
+* such as selected. (Their presence means true and their absence means false.)
+* If we put an Angular interpolation expression into such an attribute then the
+* binding information would be lost when the browser removes the attribute.
+* The `ngSelected` directive solves this problem for the `selected` attribute.
+* This complementary directive is not removed by the browser and so provides
+* a permanent reliable place to store the binding information.
+*
+* @example
+<example>
+<file name="index.html">
+Check me to select: <input type="checkbox" ng-model="selected"><br/>
+<select>
+<option>Hello!</option>
+<option id="greet" ng-selected="selected">Greetings!</option>
+</select>
+</file>
+<file name="protractor.js" type="protractor">
+it('should select Greetings!', function() {
+expect(element(by.id('greet')).getAttribute('selected')).toBeFalsy();
+element(by.model('selected')).click();
+expect(element(by.id('greet')).getAttribute('selected')).toBeTruthy();
+});
+</file>
+</example>
+*
+* @element OPTION
+* @param {expression} ngSelected If the {@link guide/expression expression} is truthy,
+*     then special attribute "selected" will be set on the element
+*/
+/**
+* @ngdoc directive
+* @name ngOpen
+* @restrict A
+* @priority 100
+*
+* @description
+* The HTML specification does not require browsers to preserve the values of boolean attributes
+* such as open. (Their presence means true and their absence means false.)
+* If we put an Angular interpolation expression into such an attribute then the
+* binding information would be lost when the browser removes the attribute.
+* The `ngOpen` directive solves this problem for the `open` attribute.
+* This complementary directive is not removed by the browser and so provides
+* a permanent reliable place to store the binding information.
+* @example
+<example>
+<file name="index.html">
+Check me check multiple: <input type="checkbox" ng-model="open"><br/>
+<details id="details" ng-open="open">
+<summary>Show/Hide me</summary>
+</details>
+</file>
+<file name="protractor.js" type="protractor">
+it('should toggle open', function() {
+expect(element(by.id('details')).getAttribute('open')).toBeFalsy();
+element(by.model('open')).click();
+expect(element(by.id('details')).getAttribute('open')).toBeTruthy();
+});
+</file>
+</example>
+*
+* @element DETAILS
+* @param {expression} ngOpen If the {@link guide/expression expression} is truthy,
+*     then special attribute "open" will be set on the element
+*/
+var ngAttributeAliasDirectives = {};
+// boolean attrs are evaluated
+forEach(BOOLEAN_ATTR, function(propName, attrName) {
+// binding to multiple is not supported
+if (propName == "multiple") return;
+var normalized = directiveNormalize('ng-' + attrName);
+ngAttributeAliasDirectives[normalized] = function() {
+return {
+priority: 100,
+link: function(scope, element, attr) {
+scope.$watch(attr[normalized], function ngBooleanAttrWatchAction(value) {
+attr.$set(attrName, !!value);
+});
+}
+};
+};
+});
+// ng-src, ng-srcset, ng-href are interpolated
+forEach(['src', 'srcset', 'href'], function(attrName) {
+var normalized = directiveNormalize('ng-' + attrName);
+ngAttributeAliasDirectives[normalized] = function() {
+return {
+priority: 99, // it needs to run after the attributes are interpolated
+link: function(scope, element, attr) {
+var propName = attrName,
+name = attrName;
+if (attrName === 'href' &&
+toString.call(element.prop('href')) === '[object SVGAnimatedString]') {
+name = 'xlinkHref';
+attr.$attr[name] = 'xlink:href';
+propName = null;
+}
+attr.$observe(normalized, function(value) {
+if (!value)
+return;
+attr.$set(name, value);
+// on IE, if "ng:src" directive declaration is used and "src" attribute doesn't exist
+// then calling element.setAttribute('src', 'foo') doesn't do anything, so we need
+// to set the property as well to achieve the desired effect.
+// we use attr[attrName] value since $set can sanitize the url.
+if (msie && propName) element.prop(propName, attr[name]);
+});
+}
+};
+};
+});
+/* global -nullFormCtrl */
+var nullFormCtrl = {
+$addControl: noop,
+$removeControl: noop,
+$setValidity: noop,
+$setDirty: noop,
+$setPristine: noop
+};
+/**
+* @ngdoc type
+* @name form.FormController
+*
+* @property {boolean} $pristine True if user has not interacted with the form yet.
+* @property {boolean} $dirty True if user has already interacted with the form.
+* @property {boolean} $valid True if all of the containing forms and controls are valid.
+* @property {boolean} $invalid True if at least one containing control or form is invalid.
+*
+* @property {Object} $error Is an object hash, containing references to all invalid controls or
+*  forms, where:
+*
+*  - keys are validation tokens (error names),
+*  - values are arrays of controls or forms that are invalid for given error name.
+*
+*
+*  Built-in validation tokens:
+*
+*  - `email`
+*  - `max`
+*  - `maxlength`
+*  - `min`
+*  - `minlength`
+*  - `number`
+*  - `pattern`
+*  - `required`
+*  - `url`
+*
+* @description
+* `FormController` keeps track of all its controls and nested forms as well as state of them,
+* such as being valid/invalid or dirty/pristine.
+*
+* Each {@link ng.directive:form form} directive creates an instance
+* of `FormController`.
+*
+*/
+//asks for $scope to fool the BC controller module
+FormController.$inject = ['$element', '$attrs', '$scope', '$animate'];
+function FormController(element, attrs, $scope, $animate) {
+var form = this,
+parentForm = element.parent().controller('form') || nullFormCtrl,
+invalidCount = 0, // used to easily determine if we are valid
+errors = form.$error = {},
+controls = [];
+// init state
+form.$name = attrs.name || attrs.ngForm;
+form.$dirty = false;
+form.$pristine = true;
+form.$valid = true;
+form.$invalid = false;
+parentForm.$addControl(form);
+// Setup initial state of the control
+element.addClass(PRISTINE_CLASS);
+toggleValidCss(true);
+// convenience method for easy toggling of classes
+function toggleValidCss(isValid, validationErrorKey) {
+validationErrorKey = validationErrorKey ? '-' + snake_case(validationErrorKey, '-') : '';
+$animate.removeClass(element, (isValid ? INVALID_CLASS : VALID_CLASS) + validationErrorKey);
+$animate.addClass(element, (isValid ? VALID_CLASS : INVALID_CLASS) + validationErrorKey);
+}
+/**
+* @ngdoc method
+* @name form.FormController#$addControl
+*
+* @description
+* Register a control with the form.
+*
+* Input elements using ngModelController do this automatically when they are linked.
+*/
+form.$addControl = function(control) {
+// Breaking change - before, inputs whose name was "hasOwnProperty" were quietly ignored
+// and not added to the scope.  Now we throw an error.
+assertNotHasOwnProperty(control.$name, 'input');
+controls.push(control);
+if (control.$name) {
+form[control.$name] = control;
+}
+};
+/**
+* @ngdoc method
+* @name form.FormController#$removeControl
+*
+* @description
+* Deregister a control from the form.
+*
+* Input elements using ngModelController do this automatically when they are destroyed.
+*/
+form.$removeControl = function(control) {
+if (control.$name && form[control.$name] === control) {
+delete form[control.$name];
+}
+forEach(errors, function(queue, validationToken) {
+form.$setValidity(validationToken, true, control);
+});
+arrayRemove(controls, control);
+};
+/**
+* @ngdoc method
+* @name form.FormController#$setValidity
+*
+* @description
+* Sets the validity of a form control.
+*
+* This method will also propagate to parent forms.
+*/
+form.$setValidity = function(validationToken, isValid, control) {
+var queue = errors[validationToken];
+if (isValid) {
+if (queue) {
+arrayRemove(queue, control);
+if (!queue.length) {
+invalidCount--;
+if (!invalidCount) {
+toggleValidCss(isValid);
+form.$valid = true;
+form.$invalid = false;
+}
+errors[validationToken] = false;
+toggleValidCss(true, validationToken);
+parentForm.$setValidity(validationToken, true, form);
+}
+}
+} else {
+if (!invalidCount) {
+toggleValidCss(isValid);
+}
+if (queue) {
+if (includes(queue, control)) return;
+} else {
+errors[validationToken] = queue = [];
+invalidCount++;
+toggleValidCss(false, validationToken);
+parentForm.$setValidity(validationToken, false, form);
+}
+queue.push(control);
+form.$valid = false;
+form.$invalid = true;
+}
+};
+/**
+* @ngdoc method
+* @name form.FormController#$setDirty
+*
+* @description
+* Sets the form to a dirty state.
+*
+* This method can be called to add the 'ng-dirty' class and set the form to a dirty
+* state (ng-dirty class). This method will also propagate to parent forms.
+*/
+form.$setDirty = function() {
+$animate.removeClass(element, PRISTINE_CLASS);
+$animate.addClass(element, DIRTY_CLASS);
+form.$dirty = true;
+form.$pristine = false;
+parentForm.$setDirty();
+};
+/**
+* @ngdoc method
+* @name form.FormController#$setPristine
+*
+* @description
+* Sets the form to its pristine state.
+*
+* This method can be called to remove the 'ng-dirty' class and set the form to its pristine
+* state (ng-pristine class). This method will also propagate to all the controls contained
+* in this form.
+*
+* Setting a form back to a pristine state is often useful when we want to 'reuse' a form after
+* saving or resetting it.
+*/
+form.$setPristine = function () {
+$animate.removeClass(element, DIRTY_CLASS);
+$animate.addClass(element, PRISTINE_CLASS);
+form.$dirty = false;
+form.$pristine = true;
+forEach(controls, function(control) {
+control.$setPristine();
+});
+};
+}
+/**
+* @ngdoc directive
+* @name ngForm
+* @restrict EAC
+*
+* @description
+* Nestable alias of {@link ng.directive:form `form`} directive. HTML
+* does not allow nesting of form elements. It is useful to nest forms, for example if the validity of a
+* sub-group of controls needs to be determined.
+*
+* @param {string=} ngForm|name Name of the form. If specified, the form controller will be published into
+*                       related scope, under this name.
+*
+*/
+/**
+* @ngdoc directive
+* @name form
+* @restrict E
+*
+* @description
+* Directive that instantiates
+* {@link form.FormController FormController}.
+*
+* If the `name` attribute is specified, the form controller is published onto the current scope under
+* this name.
+*
+* # Alias: {@link ng.directive:ngForm `ngForm`}
+*
+* In Angular forms can be nested. This means that the outer form is valid when all of the child
+* forms are valid as well. However, browsers do not allow nesting of `<form>` elements, so
+* Angular provides the {@link ng.directive:ngForm `ngForm`} directive which behaves identically to
+* `<form>` but can be nested.  This allows you to have nested forms, which is very useful when
+* using Angular validation directives in forms that are dynamically generated using the
+* {@link ng.directive:ngRepeat `ngRepeat`} directive. Since you cannot dynamically generate the `name`
+* attribute of input elements using interpolation, you have to wrap each set of repeated inputs in an
+* `ngForm` directive and nest these in an outer `form` element.
+*
+*
+* # CSS classes
+*  - `ng-valid` is set if the form is valid.
+*  - `ng-invalid` is set if the form is invalid.
+*  - `ng-pristine` is set if the form is pristine.
+*  - `ng-dirty` is set if the form is dirty.
+*
+* Keep in mind that ngAnimate can detect each of these classes when added and removed.
+*
+*
+* # Submitting a form and preventing the default action
+*
+* Since the role of forms in client-side Angular applications is different than in classical
+* roundtrip apps, it is desirable for the browser not to translate the form submission into a full
+* page reload that sends the data to the server. Instead some javascript logic should be triggered
+* to handle the form submission in an application-specific way.
+*
+* For this reason, Angular prevents the default action (form submission to the server) unless the
+* `<form>` element has an `action` attribute specified.
+*
+* You can use one of the following two ways to specify what javascript method should be called when
+* a form is submitted:
+*
+* - {@link ng.directive:ngSubmit ngSubmit} directive on the form element
+* - {@link ng.directive:ngClick ngClick} directive on the first
+*  button or input field of type submit (input[type=submit])
+*
+* To prevent double execution of the handler, use only one of the {@link ng.directive:ngSubmit ngSubmit}
+* or {@link ng.directive:ngClick ngClick} directives.
+* This is because of the following form submission rules in the HTML specification:
+*
+* - If a form has only one input field then hitting enter in this field triggers form submit
+* (`ngSubmit`)
+* - if a form has 2+ input fields and no buttons or input[type=submit] then hitting enter
+* doesn't trigger submit
+* - if a form has one or more input fields and one or more buttons or input[type=submit] then
+* hitting enter in any of the input fields will trigger the click handler on the *first* button or
+* input[type=submit] (`ngClick`) *and* a submit handler on the enclosing form (`ngSubmit`)
+*
+* @param {string=} name Name of the form. If specified, the form controller will be published into
+*                       related scope, under this name.
+*
+* ## Animation Hooks
+*
+* Animations in ngForm are triggered when any of the associated CSS classes are added and removed.
+* These classes are: `.ng-pristine`, `.ng-dirty`, `.ng-invalid` and `.ng-valid` as well as any
+* other validations that are performed within the form. Animations in ngForm are similar to how
+* they work in ngClass and animations can be hooked into using CSS transitions, keyframes as well
+* as JS animations.
+*
+* The following example shows a simple way to utilize CSS transitions to style a form element
+* that has been rendered as invalid after it has been validated:
+*
+* <pre>
+* //be sure to include ngAnimate as a module to hook into more
+* //advanced animations
+* .my-form {
+*   transition:0.5s linear all;
+*   background: white;
+* }
+* .my-form.ng-invalid {
+*   background: red;
+*   color:white;
+* }
+* </pre>
+*
+* @example
+<example deps="angular-animate.js" animations="true" fixBase="true">
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.userType = 'guest';
+}
+</script>
+<style>
+.my-form {
+-webkit-transition:all linear 0.5s;
+transition:all linear 0.5s;
+background: transparent;
+}
+.my-form.ng-invalid {
+background: red;
+}
+</style>
+<form name="myForm" ng-controller="Ctrl" class="my-form">
+userType: <input name="input" ng-model="userType" required>
+<span class="error" ng-show="myForm.input.$error.required">Required!</span><br>
+<tt>userType = {{userType}}</tt><br>
+<tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br>
+<tt>myForm.input.$error = {{myForm.input.$error}}</tt><br>
+<tt>myForm.$valid = {{myForm.$valid}}</tt><br>
+<tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br>
+</form>
+</file>
+<file name="protractor.js" type="protractor">
+it('should initialize to model', function() {
+var userType = element(by.binding('userType'));
+var valid = element(by.binding('myForm.input.$valid'));
+expect(userType.getText()).toContain('guest');
+expect(valid.getText()).toContain('true');
+});
+it('should be invalid if empty', function() {
+var userType = element(by.binding('userType'));
+var valid = element(by.binding('myForm.input.$valid'));
+var userInput = element(by.model('userType'));
+userInput.clear();
+userInput.sendKeys('');
+expect(userType.getText()).toEqual('userType =');
+expect(valid.getText()).toContain('false');
+});
+</file>
+</example>
+*
+*/
+var formDirectiveFactory = function(isNgForm) {
+return ['$timeout', function($timeout) {
+var formDirective = {
+name: 'form',
+restrict: isNgForm ? 'EAC' : 'E',
+controller: FormController,
+compile: function() {
+return {
+pre: function(scope, formElement, attr, controller) {
+if (!attr.action) {
+// we can't use jq events because if a form is destroyed during submission the default
+// action is not prevented. see #1238
+//
+// IE 9 is not affected because it doesn't fire a submit event and try to do a full
+// page reload if the form was destroyed by submission of the form via a click handler
+// on a button in the form. Looks like an IE9 specific bug.
+var preventDefaultListener = function(event) {
+event.preventDefault
+? event.preventDefault()
+: event.returnValue = false; // IE
+};
+addEventListenerFn(formElement[0], 'submit', preventDefaultListener);
+// unregister the preventDefault listener so that we don't not leak memory but in a
+// way that will achieve the prevention of the default action.
+formElement.on('$destroy', function() {
+$timeout(function() {
+removeEventListenerFn(formElement[0], 'submit', preventDefaultListener);
+}, 0, false);
+});
+}
+var parentFormCtrl = formElement.parent().controller('form'),
+alias = attr.name || attr.ngForm;
+if (alias) {
+setter(scope, alias, controller, alias);
+}
+if (parentFormCtrl) {
+formElement.on('$destroy', function() {
+parentFormCtrl.$removeControl(controller);
+if (alias) {
+setter(scope, alias, undefined, alias);
+}
+extend(controller, nullFormCtrl); //stop propagating child destruction handlers upwards
+});
+}
+}
+};
+}
+};
+return formDirective;
+}];
+};
+var formDirective = formDirectiveFactory();
+var ngFormDirective = formDirectiveFactory(true);
+/* global
+-VALID_CLASS,
+-INVALID_CLASS,
+-PRISTINE_CLASS,
+-DIRTY_CLASS
+*/
+var URL_REGEXP = /^(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?$/;
+var EMAIL_REGEXP = /^[a-z0-9!#$%&'*+/=?^_`{|}~.-]+@[a-z0-9-]+(\.[a-z0-9-]+)*$/i;
+var NUMBER_REGEXP = /^\s*(\-|\+)?(\d+|(\d*(\.\d*)))\s*$/;
+var inputType = {
+/**
+* @ngdoc input
+* @name input[text]
+*
+* @description
+* Standard HTML text input with angular data binding.
+*
+* @param {string} ngModel Assignable angular expression to data-bind to.
+* @param {string=} name Property name of the form under which the control is published.
+* @param {string=} required Adds `required` validation error key if the value is not entered.
+* @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
+*    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
+*    `required` when you want to data-bind to the `required` attribute.
+* @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than
+*    minlength.
+* @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than
+*    maxlength.
+* @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the
+*    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
+*    patterns defined as scope expressions.
+* @param {string=} ngChange Angular expression to be executed when input changes due to user
+*    interaction with the input element.
+* @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.
+*
+* @example
+<example name="text-input-directive">
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.text = 'guest';
+$scope.word = /^\s*\w*\s*$/;
+}
+</script>
+<form name="myForm" ng-controller="Ctrl">
+Single word: <input type="text" name="input" ng-model="text"
+ng-pattern="word" required ng-trim="false">
+<span class="error" ng-show="myForm.input.$error.required">
+Required!</span>
+<span class="error" ng-show="myForm.input.$error.pattern">
+Single word only!</span>
+<tt>text = {{text}}</tt><br/>
+<tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
+<tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
+<tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
+<tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
+</form>
+</file>
+<file name="protractor.js" type="protractor">
+var text = element(by.binding('text'));
+var valid = element(by.binding('myForm.input.$valid'));
+var input = element(by.model('text'));
+it('should initialize to model', function() {
+expect(text.getText()).toContain('guest');
+expect(valid.getText()).toContain('true');
+});
+it('should be invalid if empty', function() {
+input.clear();
+input.sendKeys('');
+expect(text.getText()).toEqual('text =');
+expect(valid.getText()).toContain('false');
+});
+it('should be invalid if multi word', function() {
+input.clear();
+input.sendKeys('hello world');
+expect(valid.getText()).toContain('false');
+});
+</file>
+</example>
+*/
+'text': textInputType,
+/**
+* @ngdoc input
+* @name input[number]
+*
+* @description
+* Text input with number validation and transformation. Sets the `number` validation
+* error if not a valid number.
+*
+* @param {string} ngModel Assignable angular expression to data-bind to.
+* @param {string=} name Property name of the form under which the control is published.
+* @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.
+* @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.
+* @param {string=} required Sets `required` validation error key if the value is not entered.
+* @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
+*    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
+*    `required` when you want to data-bind to the `required` attribute.
+* @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than
+*    minlength.
+* @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than
+*    maxlength.
+* @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the
+*    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
+*    patterns defined as scope expressions.
+* @param {string=} ngChange Angular expression to be executed when input changes due to user
+*    interaction with the input element.
+*
+* @example
+<example name="number-input-directive">
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.value = 12;
+}
+</script>
+<form name="myForm" ng-controller="Ctrl">
+Number: <input type="number" name="input" ng-model="value"
+min="0" max="99" required>
+<span class="error" ng-show="myForm.input.$error.required">
+Required!</span>
+<span class="error" ng-show="myForm.input.$error.number">
+Not valid number!</span>
+<tt>value = {{value}}</tt><br/>
+<tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
+<tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
+<tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
+<tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
+</form>
+</file>
+<file name="protractor.js" type="protractor">
+var value = element(by.binding('value'));
+var valid = element(by.binding('myForm.input.$valid'));
+var input = element(by.model('value'));
+it('should initialize to model', function() {
+expect(value.getText()).toContain('12');
+expect(valid.getText()).toContain('true');
+});
+it('should be invalid if empty', function() {
+input.clear();
+input.sendKeys('');
+expect(value.getText()).toEqual('value =');
+expect(valid.getText()).toContain('false');
+});
+it('should be invalid if over max', function() {
+input.clear();
+input.sendKeys('123');
+expect(value.getText()).toEqual('value =');
+expect(valid.getText()).toContain('false');
+});
+</file>
+</example>
+*/
+'number': numberInputType,
+/**
+* @ngdoc input
+* @name input[url]
+*
+* @description
+* Text input with URL validation. Sets the `url` validation error key if the content is not a
+* valid URL.
+*
+* @param {string} ngModel Assignable angular expression to data-bind to.
+* @param {string=} name Property name of the form under which the control is published.
+* @param {string=} required Sets `required` validation error key if the value is not entered.
+* @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
+*    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
+*    `required` when you want to data-bind to the `required` attribute.
+* @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than
+*    minlength.
+* @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than
+*    maxlength.
+* @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the
+*    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
+*    patterns defined as scope expressions.
+* @param {string=} ngChange Angular expression to be executed when input changes due to user
+*    interaction with the input element.
+*
+* @example
+<example name="url-input-directive">
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.text = 'http://google.com';
+}
+</script>
+<form name="myForm" ng-controller="Ctrl">
+URL: <input type="url" name="input" ng-model="text" required>
+<span class="error" ng-show="myForm.input.$error.required">
+Required!</span>
+<span class="error" ng-show="myForm.input.$error.url">
+Not valid url!</span>
+<tt>text = {{text}}</tt><br/>
+<tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
+<tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
+<tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
+<tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
+<tt>myForm.$error.url = {{!!myForm.$error.url}}</tt><br/>
+</form>
+</file>
+<file name="protractor.js" type="protractor">
+var text = element(by.binding('text'));
+var valid = element(by.binding('myForm.input.$valid'));
+var input = element(by.model('text'));
+it('should initialize to model', function() {
+expect(text.getText()).toContain('http://google.com');
+expect(valid.getText()).toContain('true');
+});
+it('should be invalid if empty', function() {
+input.clear();
+input.sendKeys('');
+expect(text.getText()).toEqual('text =');
+expect(valid.getText()).toContain('false');
+});
+it('should be invalid if not url', function() {
+input.clear();
+input.sendKeys('box');
+expect(valid.getText()).toContain('false');
+});
+</file>
+</example>
+*/
+'url': urlInputType,
+/**
+* @ngdoc input
+* @name input[email]
+*
+* @description
+* Text input with email validation. Sets the `email` validation error key if not a valid email
+* address.
+*
+* @param {string} ngModel Assignable angular expression to data-bind to.
+* @param {string=} name Property name of the form under which the control is published.
+* @param {string=} required Sets `required` validation error key if the value is not entered.
+* @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
+*    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
+*    `required` when you want to data-bind to the `required` attribute.
+* @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than
+*    minlength.
+* @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than
+*    maxlength.
+* @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the
+*    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
+*    patterns defined as scope expressions.
+* @param {string=} ngChange Angular expression to be executed when input changes due to user
+*    interaction with the input element.
+*
+* @example
+<example name="email-input-directive">
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.text = 'me@example.com';
+}
+</script>
+<form name="myForm" ng-controller="Ctrl">
+Email: <input type="email" name="input" ng-model="text" required>
+<span class="error" ng-show="myForm.input.$error.required">
+Required!</span>
+<span class="error" ng-show="myForm.input.$error.email">
+Not valid email!</span>
+<tt>text = {{text}}</tt><br/>
+<tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
+<tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
+<tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
+<tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
+<tt>myForm.$error.email = {{!!myForm.$error.email}}</tt><br/>
+</form>
+</file>
+<file name="protractor.js" type="protractor">
+var text = element(by.binding('text'));
+var valid = element(by.binding('myForm.input.$valid'));
+var input = element(by.model('text'));
+it('should initialize to model', function() {
+expect(text.getText()).toContain('me@example.com');
+expect(valid.getText()).toContain('true');
+});
+it('should be invalid if empty', function() {
+input.clear();
+input.sendKeys('');
+expect(text.getText()).toEqual('text =');
+expect(valid.getText()).toContain('false');
+});
+it('should be invalid if not email', function() {
+input.clear();
+input.sendKeys('xxx');
+expect(valid.getText()).toContain('false');
+});
+</file>
+</example>
+*/
+'email': emailInputType,
+/**
+* @ngdoc input
+* @name input[radio]
+*
+* @description
+* HTML radio button.
+*
+* @param {string} ngModel Assignable angular expression to data-bind to.
+* @param {string} value The value to which the expression should be set when selected.
+* @param {string=} name Property name of the form under which the control is published.
+* @param {string=} ngChange Angular expression to be executed when input changes due to user
+*    interaction with the input element.
+* @param {string} ngValue Angular expression which sets the value to which the expression should
+*    be set when selected.
+*
+* @example
+<example name="radio-input-directive">
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.color = 'blue';
+$scope.specialValue = {
+"id": "12345",
+"value": "green"
+};
+}
+</script>
+<form name="myForm" ng-controller="Ctrl">
+<input type="radio" ng-model="color" value="red">  Red <br/>
+<input type="radio" ng-model="color" ng-value="specialValue"> Green <br/>
+<input type="radio" ng-model="color" value="blue"> Blue <br/>
+<tt>color = {{color | json}}</tt><br/>
+</form>
+Note that `ng-value="specialValue"` sets radio item's value to be the value of `$scope.specialValue`.
+</file>
+<file name="protractor.js" type="protractor">
+it('should change state', function() {
+var color = element(by.binding('color'));
+expect(color.getText()).toContain('blue');
+element.all(by.model('color')).get(0).click();
+expect(color.getText()).toContain('red');
+});
+</file>
+</example>
+*/
+'radio': radioInputType,
+/**
+* @ngdoc input
+* @name input[checkbox]
+*
+* @description
+* HTML checkbox.
+*
+* @param {string} ngModel Assignable angular expression to data-bind to.
+* @param {string=} name Property name of the form under which the control is published.
+* @param {string=} ngTrueValue The value to which the expression should be set when selected.
+* @param {string=} ngFalseValue The value to which the expression should be set when not selected.
+* @param {string=} ngChange Angular expression to be executed when input changes due to user
+*    interaction with the input element.
+*
+* @example
+<example name="checkbox-input-directive">
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.value1 = true;
+$scope.value2 = 'YES'
+}
+</script>
+<form name="myForm" ng-controller="Ctrl">
+Value1: <input type="checkbox" ng-model="value1"> <br/>
+Value2: <input type="checkbox" ng-model="value2"
+ng-true-value="YES" ng-false-value="NO"> <br/>
+<tt>value1 = {{value1}}</tt><br/>
+<tt>value2 = {{value2}}</tt><br/>
+</form>
+</file>
+<file name="protractor.js" type="protractor">
+it('should change state', function() {
+var value1 = element(by.binding('value1'));
+var value2 = element(by.binding('value2'));
+expect(value1.getText()).toContain('true');
+expect(value2.getText()).toContain('YES');
+element(by.model('value1')).click();
+element(by.model('value2')).click();
+expect(value1.getText()).toContain('false');
+expect(value2.getText()).toContain('NO');
+});
+</file>
+</example>
+*/
+'checkbox': checkboxInputType,
+'hidden': noop,
+'button': noop,
+'submit': noop,
+'reset': noop,
+'file': noop
+};
+// A helper function to call $setValidity and return the value / undefined,
+// a pattern that is repeated a lot in the input validation logic.
+function validate(ctrl, validatorName, validity, value){
+ctrl.$setValidity(validatorName, validity);
+return validity ? value : undefined;
+}
+function addNativeHtml5Validators(ctrl, validatorName, element) {
+var validity = element.prop('validity');
+if (isObject(validity)) {
+var validator = function(value) {
+// Don't overwrite previous validation, don't consider valueMissing to apply (ng-required can
+// perform the required validation)
+if (!ctrl.$error[validatorName] && (validity.badInput || validity.customError ||
+validity.typeMismatch) && !validity.valueMissing) {
+ctrl.$setValidity(validatorName, false);
+return;
+}
+return value;
+};
+ctrl.$parsers.push(validator);
+ctrl.$formatters.push(validator);
+}
+}
+function textInputType(scope, element, attr, ctrl, $sniffer, $browser) {
+var validity = element.prop('validity');
+// In composition mode, users are still inputing intermediate text buffer,
+// hold the listener until composition is done.
+// More about composition events: https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent
+if (!$sniffer.android) {
+var composing = false;
+element.on('compositionstart', function(data) {
+composing = true;
+});
+element.on('compositionend', function() {
+composing = false;
+listener();
+});
+}
+var listener = function() {
+if (composing) return;
+var value = element.val();
+// By default we will trim the value
+// If the attribute ng-trim exists we will avoid trimming
+// e.g. <input ng-model="foo" ng-trim="false">
+if (toBoolean(attr.ngTrim || 'T')) {
+value = trim(value);
+}
+if (ctrl.$viewValue !== value ||
+// If the value is still empty/falsy, and there is no `required` error, run validators
+// again. This enables HTML5 constraint validation errors to affect Angular validation
+// even when the first character entered causes an error.
+(validity && value === '' && !validity.valueMissing)) {
+if (scope.$$phase) {
+ctrl.$setViewValue(value);
+} else {
+scope.$apply(function() {
+ctrl.$setViewValue(value);
+});
+}
+}
+};
+// if the browser does support "input" event, we are fine - except on IE9 which doesn't fire the
+// input event on backspace, delete or cut
+if ($sniffer.hasEvent('input')) {
+element.on('input', listener);
+} else {
+var timeout;
+var deferListener = function() {
+if (!timeout) {
+timeout = $browser.defer(function() {
+listener();
+timeout = null;
+});
+}
+};
+element.on('keydown', function(event) {
+var key = event.keyCode;
+// ignore
+//    command            modifiers                   arrows
+if (key === 91 || (15 < key && key < 19) || (37 <= key && key <= 40)) return;
+deferListener();
+});
+// if user modifies input value using context menu in IE, we need "paste" and "cut" events to catch it
+if ($sniffer.hasEvent('paste')) {
+element.on('paste cut', deferListener);
+}
+}
+// if user paste into input using mouse on older browser
+// or form autocomplete on newer browser, we need "change" event to catch it
+element.on('change', listener);
+ctrl.$render = function() {
+element.val(ctrl.$isEmpty(ctrl.$viewValue) ? '' : ctrl.$viewValue);
+};
+// pattern validator
+var pattern = attr.ngPattern,
+patternValidator,
+match;
+if (pattern) {
+var validateRegex = function(regexp, value) {
+return validate(ctrl, 'pattern', ctrl.$isEmpty(value) || regexp.test(value), value);
+};
+match = pattern.match(/^\/(.*)\/([gim]*)$/);
+if (match) {
+pattern = new RegExp(match[1], match[2]);
+patternValidator = function(value) {
+return validateRegex(pattern, value);
+};
+} else {
+patternValidator = function(value) {
+var patternObj = scope.$eval(pattern);
+if (!patternObj || !patternObj.test) {
+throw minErr('ngPattern')('noregexp',
+'Expected {0} to be a RegExp but was {1}. Element: {2}', pattern,
+patternObj, startingTag(element));
+}
+return validateRegex(patternObj, value);
+};
+}
+ctrl.$formatters.push(patternValidator);
+ctrl.$parsers.push(patternValidator);
+}
+// min length validator
+if (attr.ngMinlength) {
+var minlength = int(attr.ngMinlength);
+var minLengthValidator = function(value) {
+return validate(ctrl, 'minlength', ctrl.$isEmpty(value) || value.length >= minlength, value);
+};
+ctrl.$parsers.push(minLengthValidator);
+ctrl.$formatters.push(minLengthValidator);
+}
+// max length validator
+if (attr.ngMaxlength) {
+var maxlength = int(attr.ngMaxlength);
+var maxLengthValidator = function(value) {
+return validate(ctrl, 'maxlength', ctrl.$isEmpty(value) || value.length <= maxlength, value);
+};
+ctrl.$parsers.push(maxLengthValidator);
+ctrl.$formatters.push(maxLengthValidator);
+}
+}
+function numberInputType(scope, element, attr, ctrl, $sniffer, $browser) {
+textInputType(scope, element, attr, ctrl, $sniffer, $browser);
+ctrl.$parsers.push(function(value) {
+var empty = ctrl.$isEmpty(value);
+if (empty || NUMBER_REGEXP.test(value)) {
+ctrl.$setValidity('number', true);
+return value === '' ? null : (empty ? value : parseFloat(value));
+} else {
+ctrl.$setValidity('number', false);
+return undefined;
+}
+});
+addNativeHtml5Validators(ctrl, 'number', element);
+ctrl.$formatters.push(function(value) {
+return ctrl.$isEmpty(value) ? '' : '' + value;
+});
+if (attr.min) {
+var minValidator = function(value) {
+var min = parseFloat(attr.min);
+return validate(ctrl, 'min', ctrl.$isEmpty(value) || value >= min, value);
+};
+ctrl.$parsers.push(minValidator);
+ctrl.$formatters.push(minValidator);
+}
+if (attr.max) {
+var maxValidator = function(value) {
+var max = parseFloat(attr.max);
+return validate(ctrl, 'max', ctrl.$isEmpty(value) || value <= max, value);
+};
+ctrl.$parsers.push(maxValidator);
+ctrl.$formatters.push(maxValidator);
+}
+ctrl.$formatters.push(function(value) {
+return validate(ctrl, 'number', ctrl.$isEmpty(value) || isNumber(value), value);
+});
+}
+function urlInputType(scope, element, attr, ctrl, $sniffer, $browser) {
+textInputType(scope, element, attr, ctrl, $sniffer, $browser);
+var urlValidator = function(value) {
+return validate(ctrl, 'url', ctrl.$isEmpty(value) || URL_REGEXP.test(value), value);
+};
+ctrl.$formatters.push(urlValidator);
+ctrl.$parsers.push(urlValidator);
+}
+function emailInputType(scope, element, attr, ctrl, $sniffer, $browser) {
+textInputType(scope, element, attr, ctrl, $sniffer, $browser);
+var emailValidator = function(value) {
+return validate(ctrl, 'email', ctrl.$isEmpty(value) || EMAIL_REGEXP.test(value), value);
+};
+ctrl.$formatters.push(emailValidator);
+ctrl.$parsers.push(emailValidator);
+}
+function radioInputType(scope, element, attr, ctrl) {
+// make the name unique, if not defined
+if (isUndefined(attr.name)) {
+element.attr('name', nextUid());
+}
+element.on('click', function() {
+if (element[0].checked) {
+scope.$apply(function() {
+ctrl.$setViewValue(attr.value);
+});
+}
+});
+ctrl.$render = function() {
+var value = attr.value;
+element[0].checked = (value == ctrl.$viewValue);
+};
+attr.$observe('value', ctrl.$render);
+}
+function checkboxInputType(scope, element, attr, ctrl) {
+var trueValue = attr.ngTrueValue,
+falseValue = attr.ngFalseValue;
+if (!isString(trueValue)) trueValue = true;
+if (!isString(falseValue)) falseValue = false;
+element.on('click', function() {
+scope.$apply(function() {
+ctrl.$setViewValue(element[0].checked);
+});
+});
+ctrl.$render = function() {
+element[0].checked = ctrl.$viewValue;
+};
+// Override the standard `$isEmpty` because a value of `false` means empty in a checkbox.
+ctrl.$isEmpty = function(value) {
+return value !== trueValue;
+};
+ctrl.$formatters.push(function(value) {
+return value === trueValue;
+});
+ctrl.$parsers.push(function(value) {
+return value ? trueValue : falseValue;
+});
+}
+/**
+* @ngdoc directive
+* @name textarea
+* @restrict E
+*
+* @description
+* HTML textarea element control with angular data-binding. The data-binding and validation
+* properties of this element are exactly the same as those of the
+* {@link ng.directive:input input element}.
+*
+* @param {string} ngModel Assignable angular expression to data-bind to.
+* @param {string=} name Property name of the form under which the control is published.
+* @param {string=} required Sets `required` validation error key if the value is not entered.
+* @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
+*    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
+*    `required` when you want to data-bind to the `required` attribute.
+* @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than
+*    minlength.
+* @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than
+*    maxlength.
+* @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the
+*    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
+*    patterns defined as scope expressions.
+* @param {string=} ngChange Angular expression to be executed when input changes due to user
+*    interaction with the input element.
+*/
+/**
+* @ngdoc directive
+* @name input
+* @restrict E
+*
+* @description
+* HTML input element control with angular data-binding. Input control follows HTML5 input types
+* and polyfills the HTML5 validation behavior for older browsers.
+*
+* @param {string} ngModel Assignable angular expression to data-bind to.
+* @param {string=} name Property name of the form under which the control is published.
+* @param {string=} required Sets `required` validation error key if the value is not entered.
+* @param {boolean=} ngRequired Sets `required` attribute if set to true
+* @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than
+*    minlength.
+* @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than
+*    maxlength.
+* @param {string=} ngPattern Sets `pattern` validation error key if the value does not match the
+*    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
+*    patterns defined as scope expressions.
+* @param {string=} ngChange Angular expression to be executed when input changes due to user
+*    interaction with the input element.
+*
+* @example
+<example name="input-directive">
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.user = {name: 'guest', last: 'visitor'};
+}
+</script>
+<div ng-controller="Ctrl">
+<form name="myForm">
+User name: <input type="text" name="userName" ng-model="user.name" required>
+<span class="error" ng-show="myForm.userName.$error.required">
+Required!</span><br>
+Last name: <input type="text" name="lastName" ng-model="user.last"
+ng-minlength="3" ng-maxlength="10">
+<span class="error" ng-show="myForm.lastName.$error.minlength">
+Too short!</span>
+<span class="error" ng-show="myForm.lastName.$error.maxlength">
+Too long!</span><br>
+</form>
+<hr>
+<tt>user = {{user}}</tt><br/>
+<tt>myForm.userName.$valid = {{myForm.userName.$valid}}</tt><br>
+<tt>myForm.userName.$error = {{myForm.userName.$error}}</tt><br>
+<tt>myForm.lastName.$valid = {{myForm.lastName.$valid}}</tt><br>
+<tt>myForm.lastName.$error = {{myForm.lastName.$error}}</tt><br>
+<tt>myForm.$valid = {{myForm.$valid}}</tt><br>
+<tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br>
+<tt>myForm.$error.minlength = {{!!myForm.$error.minlength}}</tt><br>
+<tt>myForm.$error.maxlength = {{!!myForm.$error.maxlength}}</tt><br>
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+var user = element(by.binding('{{user}}'));
+var userNameValid = element(by.binding('myForm.userName.$valid'));
+var lastNameValid = element(by.binding('myForm.lastName.$valid'));
+var lastNameError = element(by.binding('myForm.lastName.$error'));
+var formValid = element(by.binding('myForm.$valid'));
+var userNameInput = element(by.model('user.name'));
+var userLastInput = element(by.model('user.last'));
+it('should initialize to model', function() {
+expect(user.getText()).toContain('{"name":"guest","last":"visitor"}');
+expect(userNameValid.getText()).toContain('true');
+expect(formValid.getText()).toContain('true');
+});
+it('should be invalid if empty when required', function() {
+userNameInput.clear();
+userNameInput.sendKeys('');
+expect(user.getText()).toContain('{"last":"visitor"}');
+expect(userNameValid.getText()).toContain('false');
+expect(formValid.getText()).toContain('false');
+});
+it('should be valid if empty when min length is set', function() {
+userLastInput.clear();
+userLastInput.sendKeys('');
+expect(user.getText()).toContain('{"name":"guest","last":""}');
+expect(lastNameValid.getText()).toContain('true');
+expect(formValid.getText()).toContain('true');
+});
+it('should be invalid if less than required min length', function() {
+userLastInput.clear();
+userLastInput.sendKeys('xx');
+expect(user.getText()).toContain('{"name":"guest"}');
+expect(lastNameValid.getText()).toContain('false');
+expect(lastNameError.getText()).toContain('minlength');
+expect(formValid.getText()).toContain('false');
+});
+it('should be invalid if longer than max length', function() {
+userLastInput.clear();
+userLastInput.sendKeys('some ridiculously long name');
+expect(user.getText()).toContain('{"name":"guest"}');
+expect(lastNameValid.getText()).toContain('false');
+expect(lastNameError.getText()).toContain('maxlength');
+expect(formValid.getText()).toContain('false');
+});
+</file>
+</example>
+*/
+var inputDirective = ['$browser', '$sniffer', function($browser, $sniffer) {
+return {
+restrict: 'E',
+require: '?ngModel',
+link: function(scope, element, attr, ctrl) {
+if (ctrl) {
+(inputType[lowercase(attr.type)] || inputType.text)(scope, element, attr, ctrl, $sniffer,
+$browser);
+}
+}
+};
+}];
+var VALID_CLASS = 'ng-valid',
+INVALID_CLASS = 'ng-invalid',
+PRISTINE_CLASS = 'ng-pristine',
+DIRTY_CLASS = 'ng-dirty';
+/**
+* @ngdoc type
+* @name ngModel.NgModelController
+*
+* @property {string} $viewValue Actual string value in the view.
+* @property {*} $modelValue The value in the model, that the control is bound to.
+* @property {Array.<Function>} $parsers Array of functions to execute, as a pipeline, whenever
+the control reads value from the DOM.  Each function is called, in turn, passing the value
+through to the next. The last return value is used to populate the model.
+Used to sanitize / convert the value as well as validation. For validation,
+the parsers should update the validity state using
+{@link ngModel.NgModelController#$setValidity $setValidity()},
+and return `undefined` for invalid values.
+*
+* @property {Array.<Function>} $formatters Array of functions to execute, as a pipeline, whenever
+the model value changes. Each function is called, in turn, passing the value through to the
+next. Used to format / convert values for display in the control and validation.
+*      ```js
+*      function formatter(value) {
+*        if (value) {
+*          return value.toUpperCase();
+*        }
+*      }
+*      ngModel.$formatters.push(formatter);
+*      ```
+*
+* @property {Array.<Function>} $viewChangeListeners Array of functions to execute whenever the
+*     view value has changed. It is called with no arguments, and its return value is ignored.
+*     This can be used in place of additional $watches against the model value.
+*
+* @property {Object} $error An object hash with all errors as keys.
+*
+* @property {boolean} $pristine True if user has not interacted with the control yet.
+* @property {boolean} $dirty True if user has already interacted with the control.
+* @property {boolean} $valid True if there is no error.
+* @property {boolean} $invalid True if at least one error on the control.
+*
+* @description
+*
+* `NgModelController` provides API for the `ng-model` directive. The controller contains
+* services for data-binding, validation, CSS updates, and value formatting and parsing. It
+* purposefully does not contain any logic which deals with DOM rendering or listening to
+* DOM events. Such DOM related logic should be provided by other directives which make use of
+* `NgModelController` for data-binding.
+*
+* ## Custom Control Example
+* This example shows how to use `NgModelController` with a custom control to achieve
+* data-binding. Notice how different directives (`contenteditable`, `ng-model`, and `required`)
+* collaborate together to achieve the desired result.
+*
+* Note that `contenteditable` is an HTML5 attribute, which tells the browser to let the element
+* contents be edited in place by the user.  This will not work on older browsers.
+*
+* <example name="NgModelController" module="customControl">
+<file name="style.css">
+[contenteditable] {
+border: 1px solid black;
+background-color: white;
+min-height: 20px;
+}
+.ng-invalid {
+border: 1px solid red;
+}
+</file>
+<file name="script.js">
+angular.module('customControl', []).
+directive('contenteditable', function() {
+return {
+restrict: 'A', // only activate on element attribute
+require: '?ngModel', // get a hold of NgModelController
+link: function(scope, element, attrs, ngModel) {
+if(!ngModel) return; // do nothing if no ng-model
+// Specify how UI should be updated
+ngModel.$render = function() {
+element.html(ngModel.$viewValue || '');
+};
+// Listen for change events to enable binding
+element.on('blur keyup change', function() {
+scope.$apply(read);
+});
+read(); // initialize
+// Write data to the model
+function read() {
+var html = element.html();
+// When we clear the content editable the browser leaves a <br> behind
+// If strip-br attribute is provided then we strip this out
+if( attrs.stripBr && html == '<br>' ) {
+html = '';
+}
+ngModel.$setViewValue(html);
+}
+}
+};
+});
+</file>
+<file name="index.html">
+<form name="myForm">
+<div contenteditable
+name="myWidget" ng-model="userContent"
+strip-br="true"
+required>Change me!</div>
+<span ng-show="myForm.myWidget.$error.required">Required!</span>
+<hr>
+<textarea ng-model="userContent"></textarea>
+</form>
+</file>
+<file name="protractor.js" type="protractor">
+it('should data-bind and become invalid', function() {
+if (browser.params.browser == 'safari' || browser.params.browser == 'firefox') {
+// SafariDriver can't handle contenteditable
+// and Firefox driver can't clear contenteditables very well
+return;
+}
+var contentEditable = element(by.css('[contenteditable]'));
+var content = 'Change me!';
+expect(contentEditable.getText()).toEqual(content);
+contentEditable.clear();
+contentEditable.sendKeys(protractor.Key.BACK_SPACE);
+expect(contentEditable.getText()).toEqual('');
+expect(contentEditable.getAttribute('class')).toMatch(/ng-invalid-required/);
+});
+</file>
+* </example>
+*
+*
+*/
+var NgModelController = ['$scope', '$exceptionHandler', '$attrs', '$element', '$parse', '$animate',
+function($scope, $exceptionHandler, $attr, $element, $parse, $animate) {
+this.$viewValue = Number.NaN;
+this.$modelValue = Number.NaN;
+this.$parsers = [];
+this.$formatters = [];
+this.$viewChangeListeners = [];
+this.$pristine = true;
+this.$dirty = false;
+this.$valid = true;
+this.$invalid = false;
+this.$name = $attr.name;
+var ngModelGet = $parse($attr.ngModel),
+ngModelSet = ngModelGet.assign;
+if (!ngModelSet) {
+throw minErr('ngModel')('nonassign', "Expression '{0}' is non-assignable. Element: {1}",
+$attr.ngModel, startingTag($element));
+}
+/**
+* @ngdoc method
+* @name ngModel.NgModelController#$render
+*
+* @description
+* Called when the view needs to be updated. It is expected that the user of the ng-model
+* directive will implement this method.
+*/
+this.$render = noop;
+/**
+* @ngdoc method
+* @name ngModel.NgModelController#$isEmpty
+*
+* @description
+* This is called when we need to determine if the value of the input is empty.
+*
+* For instance, the required directive does this to work out if the input has data or not.
+* The default `$isEmpty` function checks whether the value is `undefined`, `''`, `null` or `NaN`.
+*
+* You can override this for input directives whose concept of being empty is different to the
+* default. The `checkboxInputType` directive does this because in its case a value of `false`
+* implies empty.
+*
+* @param {*} value Reference to check.
+* @returns {boolean} True if `value` is empty.
+*/
+this.$isEmpty = function(value) {
+return isUndefined(value) || value === '' || value === null || value !== value;
+};
+var parentForm = $element.inheritedData('$formController') || nullFormCtrl,
+invalidCount = 0, // used to easily determine if we are valid
+$error = this.$error = {}; // keep invalid keys here
+// Setup initial state of the control
+$element.addClass(PRISTINE_CLASS);
+toggleValidCss(true);
+// convenience method for easy toggling of classes
+function toggleValidCss(isValid, validationErrorKey) {
+validationErrorKey = validationErrorKey ? '-' + snake_case(validationErrorKey, '-') : '';
+$animate.removeClass($element, (isValid ? INVALID_CLASS : VALID_CLASS) + validationErrorKey);
+$animate.addClass($element, (isValid ? VALID_CLASS : INVALID_CLASS) + validationErrorKey);
+}
+/**
+* @ngdoc method
+* @name ngModel.NgModelController#$setValidity
+*
+* @description
+* Change the validity state, and notifies the form when the control changes validity. (i.e. it
+* does not notify form if given validator is already marked as invalid).
+*
+* This method should be called by validators - i.e. the parser or formatter functions.
+*
+* @param {string} validationErrorKey Name of the validator. the `validationErrorKey` will assign
+*        to `$error[validationErrorKey]=isValid` so that it is available for data-binding.
+*        The `validationErrorKey` should be in camelCase and will get converted into dash-case
+*        for class name. Example: `myError` will result in `ng-valid-my-error` and `ng-invalid-my-error`
+*        class and can be bound to as  `{{someForm.someControl.$error.myError}}` .
+* @param {boolean} isValid Whether the current state is valid (true) or invalid (false).
+*/
+this.$setValidity = function(validationErrorKey, isValid) {
+// Purposeful use of ! here to cast isValid to boolean in case it is undefined
+// jshint -W018
+if ($error[validationErrorKey] === !isValid) return;
+// jshint +W018
+if (isValid) {
+if ($error[validationErrorKey]) invalidCount--;
+if (!invalidCount) {
+toggleValidCss(true);
+this.$valid = true;
+this.$invalid = false;
+}
+} else {
+toggleValidCss(false);
+this.$invalid = true;
+this.$valid = false;
+invalidCount++;
+}
+$error[validationErrorKey] = !isValid;
+toggleValidCss(isValid, validationErrorKey);
+parentForm.$setValidity(validationErrorKey, isValid, this);
+};
+/**
+* @ngdoc method
+* @name ngModel.NgModelController#$setPristine
+*
+* @description
+* Sets the control to its pristine state.
+*
+* This method can be called to remove the 'ng-dirty' class and set the control to its pristine
+* state (ng-pristine class).
+*/
+this.$setPristine = function () {
+this.$dirty = false;
+this.$pristine = true;
+$animate.removeClass($element, DIRTY_CLASS);
+$animate.addClass($element, PRISTINE_CLASS);
+};
+/**
+* @ngdoc method
+* @name ngModel.NgModelController#$setViewValue
+*
+* @description
+* Update the view value.
+*
+* This method should be called when the view value changes, typically from within a DOM event handler.
+* For example {@link ng.directive:input input} and
+* {@link ng.directive:select select} directives call it.
+*
+* It will update the $viewValue, then pass this value through each of the functions in `$parsers`,
+* which includes any validators. The value that comes out of this `$parsers` pipeline, be applied to
+* `$modelValue` and the **expression** specified in the `ng-model` attribute.
+*
+* Lastly, all the registered change listeners, in the `$viewChangeListeners` list, are called.
+*
+* Note that calling this function does not trigger a `$digest`.
+*
+* @param {string} value Value from the view.
+*/
+this.$setViewValue = function(value) {
+this.$viewValue = value;
+// change to dirty
+if (this.$pristine) {
+this.$dirty = true;
+this.$pristine = false;
+$animate.removeClass($element, PRISTINE_CLASS);
+$animate.addClass($element, DIRTY_CLASS);
+parentForm.$setDirty();
+}
+forEach(this.$parsers, function(fn) {
+value = fn(value);
+});
+if (this.$modelValue !== value) {
+this.$modelValue = value;
+ngModelSet($scope, value);
+forEach(this.$viewChangeListeners, function(listener) {
+try {
+listener();
+} catch(e) {
+$exceptionHandler(e);
+}
+});
+}
+};
+// model -> value
+var ctrl = this;
+$scope.$watch(function ngModelWatch() {
+var value = ngModelGet($scope);
+// if scope model value and ngModel value are out of sync
+if (ctrl.$modelValue !== value) {
+var formatters = ctrl.$formatters,
+idx = formatters.length;
+ctrl.$modelValue = value;
+while(idx--) {
+value = formatters[idx](value);
+}
+if (ctrl.$viewValue !== value) {
+ctrl.$viewValue = value;
+ctrl.$render();
+}
+}
+return value;
+});
+}];
+/**
+* @ngdoc directive
+* @name ngModel
+*
+* @element input
+*
+* @description
+* The `ngModel` directive binds an `input`,`select`, `textarea` (or custom form control) to a
+* property on the scope using {@link ngModel.NgModelController NgModelController},
+* which is created and exposed by this directive.
+*
+* `ngModel` is responsible for:
+*
+* - Binding the view into the model, which other directives such as `input`, `textarea` or `select`
+*   require.
+* - Providing validation behavior (i.e. required, number, email, url).
+* - Keeping the state of the control (valid/invalid, dirty/pristine, validation errors).
+* - Setting related css classes on the element (`ng-valid`, `ng-invalid`, `ng-dirty`, `ng-pristine`) including animations.
+* - Registering the control with its parent {@link ng.directive:form form}.
+*
+* Note: `ngModel` will try to bind to the property given by evaluating the expression on the
+* current scope. If the property doesn't already exist on this scope, it will be created
+* implicitly and added to the scope.
+*
+* For best practices on using `ngModel`, see:
+*
+*  - [https://github.com/angular/angular.js/wiki/Understanding-Scopes]
+*
+* For basic examples, how to use `ngModel`, see:
+*
+*  - {@link ng.directive:input input}
+*    - {@link input[text] text}
+*    - {@link input[checkbox] checkbox}
+*    - {@link input[radio] radio}
+*    - {@link input[number] number}
+*    - {@link input[email] email}
+*    - {@link input[url] url}
+*  - {@link ng.directive:select select}
+*  - {@link ng.directive:textarea textarea}
+*
+* # CSS classes
+* The following CSS classes are added and removed on the associated input/select/textarea element
+* depending on the validity of the model.
+*
+*  - `ng-valid` is set if the model is valid.
+*  - `ng-invalid` is set if the model is invalid.
+*  - `ng-pristine` is set if the model is pristine.
+*  - `ng-dirty` is set if the model is dirty.
+*
+* Keep in mind that ngAnimate can detect each of these classes when added and removed.
+*
+* ## Animation Hooks
+*
+* Animations within models are triggered when any of the associated CSS classes are added and removed
+* on the input element which is attached to the model. These classes are: `.ng-pristine`, `.ng-dirty`,
+* `.ng-invalid` and `.ng-valid` as well as any other validations that are performed on the model itself.
+* The animations that are triggered within ngModel are similar to how they work in ngClass and
+* animations can be hooked into using CSS transitions, keyframes as well as JS animations.
+*
+* The following example shows a simple way to utilize CSS transitions to style an input element
+* that has been rendered as invalid after it has been validated:
+*
+* <pre>
+* //be sure to include ngAnimate as a module to hook into more
+* //advanced animations
+* .my-input {
+*   transition:0.5s linear all;
+*   background: white;
+* }
+* .my-input.ng-invalid {
+*   background: red;
+*   color:white;
+* }
+* </pre>
+*
+* @example
+* <example deps="angular-animate.js" animations="true" fixBase="true">
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.val = '1';
+}
+</script>
+<style>
+.my-input {
+-webkit-transition:all linear 0.5s;
+transition:all linear 0.5s;
+background: transparent;
+}
+.my-input.ng-invalid {
+color:white;
+background: red;
+}
+</style>
+Update input to see transitions when valid/invalid.
+Integer is a valid value.
+<form name="testForm" ng-controller="Ctrl">
+<input ng-model="val" ng-pattern="/^\d+$/" name="anim" class="my-input" />
+</form>
+</file>
+* </example>
+*/
+var ngModelDirective = function() {
+return {
+require: ['ngModel', '^?form'],
+controller: NgModelController,
+link: function(scope, element, attr, ctrls) {
+// notify others, especially parent forms
+var modelCtrl = ctrls[0],
+formCtrl = ctrls[1] || nullFormCtrl;
+formCtrl.$addControl(modelCtrl);
+scope.$on('$destroy', function() {
+formCtrl.$removeControl(modelCtrl);
+});
+}
+};
+};
+/**
+* @ngdoc directive
+* @name ngChange
+*
+* @description
+* Evaluate the given expression when the user changes the input.
+* The expression is evaluated immediately, unlike the JavaScript onchange event
+* which only triggers at the end of a change (usually, when the user leaves the
+* form element or presses the return key).
+* The expression is not evaluated when the value change is coming from the model.
+*
+* Note, this directive requires `ngModel` to be present.
+*
+* @element input
+* @param {expression} ngChange {@link guide/expression Expression} to evaluate upon change
+* in input value.
+*
+* @example
+* <example name="ngChange-directive">
+*   <file name="index.html">
+*     <script>
+*       function Controller($scope) {
+*         $scope.counter = 0;
+*         $scope.change = function() {
+*           $scope.counter++;
+*         };
+*       }
+*     </script>
+*     <div ng-controller="Controller">
+*       <input type="checkbox" ng-model="confirmed" ng-change="change()" id="ng-change-example1" />
+*       <input type="checkbox" ng-model="confirmed" id="ng-change-example2" />
+*       <label for="ng-change-example2">Confirmed</label><br />
+*       <tt>debug = {{confirmed}}</tt><br/>
+*       <tt>counter = {{counter}}</tt><br/>
+*     </div>
+*   </file>
+*   <file name="protractor.js" type="protractor">
+*     var counter = element(by.binding('counter'));
+*     var debug = element(by.binding('confirmed'));
+*
+*     it('should evaluate the expression if changing from view', function() {
+*       expect(counter.getText()).toContain('0');
+*
+*       element(by.id('ng-change-example1')).click();
+*
+*       expect(counter.getText()).toContain('1');
+*       expect(debug.getText()).toContain('true');
+*     });
+*
+*     it('should not evaluate the expression if changing from model', function() {
+*       element(by.id('ng-change-example2')).click();
+*       expect(counter.getText()).toContain('0');
+*       expect(debug.getText()).toContain('true');
+*     });
+*   </file>
+* </example>
+*/
+var ngChangeDirective = valueFn({
+require: 'ngModel',
+link: function(scope, element, attr, ctrl) {
+ctrl.$viewChangeListeners.push(function() {
+scope.$eval(attr.ngChange);
+});
+}
+});
+var requiredDirective = function() {
+return {
+require: '?ngModel',
+link: function(scope, elm, attr, ctrl) {
+if (!ctrl) return;
+attr.required = true; // force truthy in case we are on non input element
+var validator = function(value) {
+if (attr.required && ctrl.$isEmpty(value)) {
+ctrl.$setValidity('required', false);
+return;
+} else {
+ctrl.$setValidity('required', true);
+return value;
+}
+};
+ctrl.$formatters.push(validator);
+ctrl.$parsers.unshift(validator);
+attr.$observe('required', function() {
+validator(ctrl.$viewValue);
+});
+}
+};
+};
+/**
+* @ngdoc directive
+* @name ngList
+*
+* @description
+* Text input that converts between a delimited string and an array of strings. The delimiter
+* can be a fixed string (by default a comma) or a regular expression.
+*
+* @element input
+* @param {string=} ngList optional delimiter that should be used to split the value. If
+*   specified in form `/something/` then the value will be converted into a regular expression.
+*
+* @example
+<example name="ngList-directive">
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.names = ['igor', 'misko', 'vojta'];
+}
+</script>
+<form name="myForm" ng-controller="Ctrl">
+List: <input name="namesInput" ng-model="names" ng-list required>
+<span class="error" ng-show="myForm.namesInput.$error.required">
+Required!</span>
+<br>
+<tt>names = {{names}}</tt><br/>
+<tt>myForm.namesInput.$valid = {{myForm.namesInput.$valid}}</tt><br/>
+<tt>myForm.namesInput.$error = {{myForm.namesInput.$error}}</tt><br/>
+<tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
+<tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
+</form>
+</file>
+<file name="protractor.js" type="protractor">
+var listInput = element(by.model('names'));
+var names = element(by.binding('{{names}}'));
+var valid = element(by.binding('myForm.namesInput.$valid'));
+var error = element(by.css('span.error'));
+it('should initialize to model', function() {
+expect(names.getText()).toContain('["igor","misko","vojta"]');
+expect(valid.getText()).toContain('true');
+expect(error.getCssValue('display')).toBe('none');
+});
+it('should be invalid if empty', function() {
+listInput.clear();
+listInput.sendKeys('');
+expect(names.getText()).toContain('');
+expect(valid.getText()).toContain('false');
+expect(error.getCssValue('display')).not.toBe('none');        });
+</file>
+</example>
+*/
+var ngListDirective = function() {
+return {
+require: 'ngModel',
+link: function(scope, element, attr, ctrl) {
+var match = /\/(.*)\//.exec(attr.ngList),
+separator = match && new RegExp(match[1]) || attr.ngList || ',';
+var parse = function(viewValue) {
+// If the viewValue is invalid (say required but empty) it will be `undefined`
+if (isUndefined(viewValue)) return;
+var list = [];
+if (viewValue) {
+forEach(viewValue.split(separator), function(value) {
+if (value) list.push(trim(value));
+});
+}
+return list;
+};
+ctrl.$parsers.push(parse);
+ctrl.$formatters.push(function(value) {
+if (isArray(value)) {
+return value.join(', ');
+}
+return undefined;
+});
+// Override the standard $isEmpty because an empty array means the input is empty.
+ctrl.$isEmpty = function(value) {
+return !value || !value.length;
+};
+}
+};
+};
+var CONSTANT_VALUE_REGEXP = /^(true|false|\d+)$/;
+/**
+* @ngdoc directive
+* @name ngValue
+*
+* @description
+* Binds the given expression to the value of `input[select]` or `input[radio]`, so
+* that when the element is selected, the `ngModel` of that element is set to the
+* bound value.
+*
+* `ngValue` is useful when dynamically generating lists of radio buttons using `ng-repeat`, as
+* shown below.
+*
+* @element input
+* @param {string=} ngValue angular expression, whose value will be bound to the `value` attribute
+*   of the `input` element
+*
+* @example
+<example name="ngValue-directive">
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.names = ['pizza', 'unicorns', 'robots'];
+$scope.my = { favorite: 'unicorns' };
+}
+</script>
+<form ng-controller="Ctrl">
+<h2>Which is your favorite?</h2>
+<label ng-repeat="name in names" for="{{name}}">
+{{name}}
+<input type="radio"
+ng-model="my.favorite"
+ng-value="name"
+id="{{name}}"
+name="favorite">
+</label>
+<div>You chose {{my.favorite}}</div>
+</form>
+</file>
+<file name="protractor.js" type="protractor">
+var favorite = element(by.binding('my.favorite'));
+it('should initialize to model', function() {
+expect(favorite.getText()).toContain('unicorns');
+});
+it('should bind the values to the inputs', function() {
+element.all(by.model('my.favorite')).get(0).click();
+expect(favorite.getText()).toContain('pizza');
+});
+</file>
+</example>
+*/
+var ngValueDirective = function() {
+return {
+priority: 100,
+compile: function(tpl, tplAttr) {
+if (CONSTANT_VALUE_REGEXP.test(tplAttr.ngValue)) {
+return function ngValueConstantLink(scope, elm, attr) {
+attr.$set('value', scope.$eval(attr.ngValue));
+};
+} else {
+return function ngValueLink(scope, elm, attr) {
+scope.$watch(attr.ngValue, function valueWatchAction(value) {
+attr.$set('value', value);
+});
+};
+}
+}
+};
+};
+/**
+* @ngdoc directive
+* @name ngBind
+* @restrict AC
+*
+* @description
+* The `ngBind` attribute tells Angular to replace the text content of the specified HTML element
+* with the value of a given expression, and to update the text content when the value of that
+* expression changes.
+*
+* Typically, you don't use `ngBind` directly, but instead you use the double curly markup like
+* `{{ expression }}` which is similar but less verbose.
+*
+* It is preferable to use `ngBind` instead of `{{ expression }}` when a template is momentarily
+* displayed by the browser in its raw state before Angular compiles it. Since `ngBind` is an
+* element attribute, it makes the bindings invisible to the user while the page is loading.
+*
+* An alternative solution to this problem would be using the
+* {@link ng.directive:ngCloak ngCloak} directive.
+*
+*
+* @element ANY
+* @param {expression} ngBind {@link guide/expression Expression} to evaluate.
+*
+* @example
+* Enter a name in the Live Preview text box; the greeting below the text box changes instantly.
+<example>
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.name = 'Whirled';
+}
+</script>
+<div ng-controller="Ctrl">
+Enter name: <input type="text" ng-model="name"><br>
+Hello <span ng-bind="name"></span>!
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should check ng-bind', function() {
+var nameInput = element(by.model('name'));
+expect(element(by.binding('name')).getText()).toBe('Whirled');
+nameInput.clear();
+nameInput.sendKeys('world');
+expect(element(by.binding('name')).getText()).toBe('world');
+});
+</file>
+</example>
+*/
+var ngBindDirective = ngDirective(function(scope, element, attr) {
+element.addClass('ng-binding').data('$binding', attr.ngBind);
+scope.$watch(attr.ngBind, function ngBindWatchAction(value) {
+// We are purposefully using == here rather than === because we want to
+// catch when value is "null or undefined"
+// jshint -W041
+element.text(value == undefined ? '' : value);
+});
+});
+/**
+* @ngdoc directive
+* @name ngBindTemplate
+*
+* @description
+* The `ngBindTemplate` directive specifies that the element
+* text content should be replaced with the interpolation of the template
+* in the `ngBindTemplate` attribute.
+* Unlike `ngBind`, the `ngBindTemplate` can contain multiple `{{` `}}`
+* expressions. This directive is needed since some HTML elements
+* (such as TITLE and OPTION) cannot contain SPAN elements.
+*
+* @element ANY
+* @param {string} ngBindTemplate template of form
+*   <tt>{{</tt> <tt>expression</tt> <tt>}}</tt> to eval.
+*
+* @example
+* Try it here: enter text in text box and watch the greeting change.
+<example>
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.salutation = 'Hello';
+$scope.name = 'World';
+}
+</script>
+<div ng-controller="Ctrl">
+Salutation: <input type="text" ng-model="salutation"><br>
+Name: <input type="text" ng-model="name"><br>
+<pre ng-bind-template="{{salutation}} {{name}}!"></pre>
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should check ng-bind', function() {
+var salutationElem = element(by.binding('salutation'));
+var salutationInput = element(by.model('salutation'));
+var nameInput = element(by.model('name'));
+expect(salutationElem.getText()).toBe('Hello World!');
+salutationInput.clear();
+salutationInput.sendKeys('Greetings');
+nameInput.clear();
+nameInput.sendKeys('user');
+expect(salutationElem.getText()).toBe('Greetings user!');
+});
+</file>
+</example>
+*/
+var ngBindTemplateDirective = ['$interpolate', function($interpolate) {
+return function(scope, element, attr) {
+// TODO: move this to scenario runner
+var interpolateFn = $interpolate(element.attr(attr.$attr.ngBindTemplate));
+element.addClass('ng-binding').data('$binding', interpolateFn);
+attr.$observe('ngBindTemplate', function(value) {
+element.text(value);
+});
+};
+}];
+/**
+* @ngdoc directive
+* @name ngBindHtml
+*
+* @description
+* Creates a binding that will innerHTML the result of evaluating the `expression` into the current
+* element in a secure way.  By default, the innerHTML-ed content will be sanitized using the {@link
+* ngSanitize.$sanitize $sanitize} service.  To utilize this functionality, ensure that `$sanitize`
+* is available, for example, by including {@link ngSanitize} in your module's dependencies (not in
+* core Angular.)  You may also bypass sanitization for values you know are safe. To do so, bind to
+* an explicitly trusted value via {@link ng.$sce#trustAsHtml $sce.trustAsHtml}.  See the example
+* under {@link ng.$sce#Example Strict Contextual Escaping (SCE)}.
+*
+* Note: If a `$sanitize` service is unavailable and the bound value isn't explicitly trusted, you
+* will have an exception (instead of an exploit.)
+*
+* @element ANY
+* @param {expression} ngBindHtml {@link guide/expression Expression} to evaluate.
+*
+* @example
+Try it here: enter text in text box and watch the greeting change.
+<example module="ngBindHtmlExample" deps="angular-sanitize.js">
+<file name="index.html">
+<div ng-controller="ngBindHtmlCtrl">
+<p ng-bind-html="myHTML"></p>
+</div>
+</file>
+<file name="script.js">
+angular.module('ngBindHtmlExample', ['ngSanitize'])
+.controller('ngBindHtmlCtrl', ['$scope', function ngBindHtmlCtrl($scope) {
+$scope.myHTML =
+'I am an <code>HTML</code>string with <a href="#">links!</a> and other <em>stuff</em>';
+}]);
+</file>
+<file name="protractor.js" type="protractor">
+it('should check ng-bind-html', function() {
+expect(element(by.binding('myHTML')).getText()).toBe(
+'I am an HTMLstring with links! and other stuff');
+});
+</file>
+</example>
+*/
+var ngBindHtmlDirective = ['$sce', '$parse', function($sce, $parse) {
+return function(scope, element, attr) {
+element.addClass('ng-binding').data('$binding', attr.ngBindHtml);
+var parsed = $parse(attr.ngBindHtml);
+function getStringValue() { return (parsed(scope) || '').toString(); }
+scope.$watch(getStringValue, function ngBindHtmlWatchAction(value) {
+element.html($sce.getTrustedHtml(parsed(scope)) || '');
+});
+};
+}];
+function classDirective(name, selector) {
+name = 'ngClass' + name;
+return function() {
+return {
+restrict: 'AC',
+link: function(scope, element, attr) {
+var oldVal;
+scope.$watch(attr[name], ngClassWatchAction, true);
+attr.$observe('class', function(value) {
+ngClassWatchAction(scope.$eval(attr[name]));
+});
+if (name !== 'ngClass') {
+scope.$watch('$index', function($index, old$index) {
+// jshint bitwise: false
+var mod = $index & 1;
+if (mod !== old$index & 1) {
+var classes = flattenClasses(scope.$eval(attr[name]));
+mod === selector ?
+attr.$addClass(classes) :
+attr.$removeClass(classes);
+}
+});
+}
+function ngClassWatchAction(newVal) {
+if (selector === true || scope.$index % 2 === selector) {
+var newClasses = flattenClasses(newVal || '');
+if(!oldVal) {
+attr.$addClass(newClasses);
+} else if(!equals(newVal,oldVal)) {
+attr.$updateClass(newClasses, flattenClasses(oldVal));
+}
+}
+oldVal = copy(newVal);
+}
+function flattenClasses(classVal) {
+if(isArray(classVal)) {
+return classVal.join(' ');
+} else if (isObject(classVal)) {
+var classes = [], i = 0;
+forEach(classVal, function(v, k) {
+if (v) {
+classes.push(k);
+}
+});
+return classes.join(' ');
+}
+return classVal;
+}
+}
+};
+};
+}
+/**
+* @ngdoc directive
+* @name ngClass
+* @restrict AC
+*
+* @description
+* The `ngClass` directive allows you to dynamically set CSS classes on an HTML element by databinding
+* an expression that represents all classes to be added.
+*
+* The directive operates in three different ways, depending on which of three types the expression
+* evaluates to:
+*
+* 1. If the expression evaluates to a string, the string should be one or more space-delimited class
+* names.
+*
+* 2. If the expression evaluates to an array, each element of the array should be a string that is
+* one or more space-delimited class names.
+*
+* 3. If the expression evaluates to an object, then for each key-value pair of the
+* object with a truthy value the corresponding key is used as a class name.
+*
+* The directive won't add duplicate classes if a particular class was already set.
+*
+* When the expression changes, the previously added classes are removed and only then the
+* new classes are added.
+*
+* @animations
+* add - happens just before the class is applied to the element
+* remove - happens just before the class is removed from the element
+*
+* @element ANY
+* @param {expression} ngClass {@link guide/expression Expression} to eval. The result
+*   of the evaluation can be a string representing space delimited class
+*   names, an array, or a map of class names to boolean values. In the case of a map, the
+*   names of the properties whose values are truthy will be added as css classes to the
+*   element.
+*
+* @example Example that demonstrates basic bindings via ngClass directive.
+<example>
+<file name="index.html">
+<p ng-class="{strike: deleted, bold: important, red: error}">Map Syntax Example</p>
+<input type="checkbox" ng-model="deleted"> deleted (apply "strike" class)<br>
+<input type="checkbox" ng-model="important"> important (apply "bold" class)<br>
+<input type="checkbox" ng-model="error"> error (apply "red" class)
+<hr>
+<p ng-class="style">Using String Syntax</p>
+<input type="text" ng-model="style" placeholder="Type: bold strike red">
+<hr>
+<p ng-class="[style1, style2, style3]">Using Array Syntax</p>
+<input ng-model="style1" placeholder="Type: bold, strike or red"><br>
+<input ng-model="style2" placeholder="Type: bold, strike or red"><br>
+<input ng-model="style3" placeholder="Type: bold, strike or red"><br>
+</file>
+<file name="style.css">
+.strike {
+text-decoration: line-through;
+}
+.bold {
+font-weight: bold;
+}
+.red {
+color: red;
+}
+</file>
+<file name="protractor.js" type="protractor">
+var ps = element.all(by.css('p'));
+it('should let you toggle the class', function() {
+expect(ps.first().getAttribute('class')).not.toMatch(/bold/);
+expect(ps.first().getAttribute('class')).not.toMatch(/red/);
+element(by.model('important')).click();
+expect(ps.first().getAttribute('class')).toMatch(/bold/);
+element(by.model('error')).click();
+expect(ps.first().getAttribute('class')).toMatch(/red/);
+});
+it('should let you toggle string example', function() {
+expect(ps.get(1).getAttribute('class')).toBe('');
+element(by.model('style')).clear();
+element(by.model('style')).sendKeys('red');
+expect(ps.get(1).getAttribute('class')).toBe('red');
+});
+it('array example should have 3 classes', function() {
+expect(ps.last().getAttribute('class')).toBe('');
+element(by.model('style1')).sendKeys('bold');
+element(by.model('style2')).sendKeys('strike');
+element(by.model('style3')).sendKeys('red');
+expect(ps.last().getAttribute('class')).toBe('bold strike red');
+});
+</file>
+</example>
+## Animations
+The example below demonstrates how to perform animations using ngClass.
+<example module="ngAnimate" deps="angular-animate.js" animations="true">
+<file name="index.html">
+<input id="setbtn" type="button" value="set" ng-click="myVar='my-class'">
+<input id="clearbtn" type="button" value="clear" ng-click="myVar=''">
+<br>
+<span class="base-class" ng-class="myVar">Sample Text</span>
+</file>
+<file name="style.css">
+.base-class {
+-webkit-transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;
+transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;
+}
+.base-class.my-class {
+color: red;
+font-size:3em;
+}
+</file>
+<file name="protractor.js" type="protractor">
+it('should check ng-class', function() {
+expect(element(by.css('.base-class')).getAttribute('class')).not.
+toMatch(/my-class/);
+element(by.id('setbtn')).click();
+expect(element(by.css('.base-class')).getAttribute('class')).
+toMatch(/my-class/);
+element(by.id('clearbtn')).click();
+expect(element(by.css('.base-class')).getAttribute('class')).not.
+toMatch(/my-class/);
+});
+</file>
+</example>
+## ngClass and pre-existing CSS3 Transitions/Animations
+The ngClass directive still supports CSS3 Transitions/Animations even if they do not follow the ngAnimate CSS naming structure.
+Upon animation ngAnimate will apply supplementary CSS classes to track the start and end of an animation, but this will not hinder
+any pre-existing CSS transitions already on the element. To get an idea of what happens during a class-based animation, be sure
+to view the step by step details of {@link ngAnimate.$animate#addclass $animate.addClass} and
+{@link ngAnimate.$animate#removeclass $animate.removeClass}.
+*/
+var ngClassDirective = classDirective('', true);
+/**
+* @ngdoc directive
+* @name ngClassOdd
+* @restrict AC
+*
+* @description
+* The `ngClassOdd` and `ngClassEven` directives work exactly as
+* {@link ng.directive:ngClass ngClass}, except they work in
+* conjunction with `ngRepeat` and take effect only on odd (even) rows.
+*
+* This directive can be applied only within the scope of an
+* {@link ng.directive:ngRepeat ngRepeat}.
+*
+* @element ANY
+* @param {expression} ngClassOdd {@link guide/expression Expression} to eval. The result
+*   of the evaluation can be a string representing space delimited class names or an array.
+*
+* @example
+<example>
+<file name="index.html">
+<ol ng-init="names=['John', 'Mary', 'Cate', 'Suz']">
+<li ng-repeat="name in names">
+<span ng-class-odd="'odd'" ng-class-even="'even'">
+{{name}}
+</span>
+</li>
+</ol>
+</file>
+<file name="style.css">
+.odd {
+color: red;
+}
+.even {
+color: blue;
+}
+</file>
+<file name="protractor.js" type="protractor">
+it('should check ng-class-odd and ng-class-even', function() {
+expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).
+toMatch(/odd/);
+expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).
+toMatch(/even/);
+});
+</file>
+</example>
+*/
+var ngClassOddDirective = classDirective('Odd', 0);
+/**
+* @ngdoc directive
+* @name ngClassEven
+* @restrict AC
+*
+* @description
+* The `ngClassOdd` and `ngClassEven` directives work exactly as
+* {@link ng.directive:ngClass ngClass}, except they work in
+* conjunction with `ngRepeat` and take effect only on odd (even) rows.
+*
+* This directive can be applied only within the scope of an
+* {@link ng.directive:ngRepeat ngRepeat}.
+*
+* @element ANY
+* @param {expression} ngClassEven {@link guide/expression Expression} to eval. The
+*   result of the evaluation can be a string representing space delimited class names or an array.
+*
+* @example
+<example>
+<file name="index.html">
+<ol ng-init="names=['John', 'Mary', 'Cate', 'Suz']">
+<li ng-repeat="name in names">
+<span ng-class-odd="'odd'" ng-class-even="'even'">
+{{name}} &nbsp; &nbsp; &nbsp;
+</span>
+</li>
+</ol>
+</file>
+<file name="style.css">
+.odd {
+color: red;
+}
+.even {
+color: blue;
+}
+</file>
+<file name="protractor.js" type="protractor">
+it('should check ng-class-odd and ng-class-even', function() {
+expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).
+toMatch(/odd/);
+expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).
+toMatch(/even/);
+});
+</file>
+</example>
+*/
+var ngClassEvenDirective = classDirective('Even', 1);
+/**
+* @ngdoc directive
+* @name ngCloak
+* @restrict AC
+*
+* @description
+* The `ngCloak` directive is used to prevent the Angular html template from being briefly
+* displayed by the browser in its raw (uncompiled) form while your application is loading. Use this
+* directive to avoid the undesirable flicker effect caused by the html template display.
+*
+* The directive can be applied to the `<body>` element, but the preferred usage is to apply
+* multiple `ngCloak` directives to small portions of the page to permit progressive rendering
+* of the browser view.
+*
+* `ngCloak` works in cooperation with the following css rule embedded within `angular.js` and
+* `angular.min.js`.
+* For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).
+*
+* ```css
+* [ng\:cloak], [ng-cloak], [data-ng-cloak], [x-ng-cloak], .ng-cloak, .x-ng-cloak {
+*   display: none !important;
+* }
+* ```
+*
+* When this css rule is loaded by the browser, all html elements (including their children) that
+* are tagged with the `ngCloak` directive are hidden. When Angular encounters this directive
+* during the compilation of the template it deletes the `ngCloak` element attribute, making
+* the compiled element visible.
+*
+* For the best result, the `angular.js` script must be loaded in the head section of the html
+* document; alternatively, the css rule above must be included in the external stylesheet of the
+* application.
+*
+* Legacy browsers, like IE7, do not provide attribute selector support (added in CSS 2.1) so they
+* cannot match the `[ng\:cloak]` selector. To work around this limitation, you must add the css
+* class `ng-cloak` in addition to the `ngCloak` directive as shown in the example below.
+*
+* @element ANY
+*
+* @example
+<example>
+<file name="index.html">
+<div id="template1" ng-cloak>{{ 'hello' }}</div>
+<div id="template2" ng-cloak class="ng-cloak">{{ 'hello IE7' }}</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should remove the template directive and css class', function() {
+expect($('#template1').getAttribute('ng-cloak')).
+toBeNull();
+expect($('#template2').getAttribute('ng-cloak')).
+toBeNull();
+});
+</file>
+</example>
+*
+*/
+var ngCloakDirective = ngDirective({
+compile: function(element, attr) {
+attr.$set('ngCloak', undefined);
+element.removeClass('ng-cloak');
+}
+});
+/**
+* @ngdoc directive
+* @name ngController
+*
+* @description
+* The `ngController` directive attaches a controller class to the view. This is a key aspect of how angular
+* supports the principles behind the Model-View-Controller design pattern.
+*
+* MVC components in angular:
+*
+* * Model — The Model is scope properties; scopes are attached to the DOM where scope properties
+*   are accessed through bindings.
+* * View — The template (HTML with data bindings) that is rendered into the View.
+* * Controller — The `ngController` directive specifies a Controller class; the class contains business
+*   logic behind the application to decorate the scope with functions and values
+*
+* Note that you can also attach controllers to the DOM by declaring it in a route definition
+* via the {@link ngRoute.$route $route} service. A common mistake is to declare the controller
+* again using `ng-controller` in the template itself.  This will cause the controller to be attached
+* and executed twice.
+*
+* @element ANY
+* @scope
+* @param {expression} ngController Name of a globally accessible constructor function or an
+*     {@link guide/expression expression} that on the current scope evaluates to a
+*     constructor function. The controller instance can be published into a scope property
+*     by specifying `as propertyName`.
+*
+* @example
+* Here is a simple form for editing user contact information. Adding, removing, clearing, and
+* greeting are methods declared on the controller (see source tab). These methods can
+* easily be called from the angular markup. Notice that the scope becomes the `this` for the
+* controller's instance. This allows for easy access to the view data from the controller. Also
+* notice that any changes to the data are automatically reflected in the View without the need
+* for a manual update. The example is shown in two different declaration styles you may use
+* according to preference.
+<example>
+<file name="index.html">
+<script>
+function SettingsController1() {
+this.name = "John Smith";
+this.contacts = [
+{type: 'phone', value: '408 555 1212'},
+{type: 'email', value: 'john.smith@example.org'} ];
+};
+SettingsController1.prototype.greet = function() {
+alert(this.name);
+};
+SettingsController1.prototype.addContact = function() {
+this.contacts.push({type: 'email', value: 'yourname@example.org'});
+};
+SettingsController1.prototype.removeContact = function(contactToRemove) {
+var index = this.contacts.indexOf(contactToRemove);
+this.contacts.splice(index, 1);
+};
+SettingsController1.prototype.clearContact = function(contact) {
+contact.type = 'phone';
+contact.value = '';
+};
+</script>
+<div id="ctrl-as-exmpl" ng-controller="SettingsController1 as settings">
+Name: <input type="text" ng-model="settings.name"/>
+[ <a href="" ng-click="settings.greet()">greet</a> ]<br/>
+Contact:
+<ul>
+<li ng-repeat="contact in settings.contacts">
+<select ng-model="contact.type">
+<option>phone</option>
+<option>email</option>
+</select>
+<input type="text" ng-model="contact.value"/>
+[ <a href="" ng-click="settings.clearContact(contact)">clear</a>
+| <a href="" ng-click="settings.removeContact(contact)">X</a> ]
+</li>
+<li>[ <a href="" ng-click="settings.addContact()">add</a> ]</li>
+</ul>
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should check controller as', function() {
+var container = element(by.id('ctrl-as-exmpl'));
+expect(container.findElement(by.model('settings.name'))
+.getAttribute('value')).toBe('John Smith');
+var firstRepeat =
+container.findElement(by.repeater('contact in settings.contacts').row(0));
+var secondRepeat =
+container.findElement(by.repeater('contact in settings.contacts').row(1));
+expect(firstRepeat.findElement(by.model('contact.value')).getAttribute('value'))
+.toBe('408 555 1212');
+expect(secondRepeat.findElement(by.model('contact.value')).getAttribute('value'))
+.toBe('john.smith@example.org');
+firstRepeat.findElement(by.linkText('clear')).click();
+expect(firstRepeat.findElement(by.model('contact.value')).getAttribute('value'))
+.toBe('');
+container.findElement(by.linkText('add')).click();
+expect(container.findElement(by.repeater('contact in settings.contacts').row(2))
+.findElement(by.model('contact.value'))
+.getAttribute('value'))
+.toBe('yourname@example.org');
+});
+</file>
+</example>
+<example>
+<file name="index.html">
+<script>
+function SettingsController2($scope) {
+$scope.name = "John Smith";
+$scope.contacts = [
+{type:'phone', value:'408 555 1212'},
+{type:'email', value:'john.smith@example.org'} ];
+$scope.greet = function() {
+alert(this.name);
+};
+$scope.addContact = function() {
+this.contacts.push({type:'email', value:'yourname@example.org'});
+};
+$scope.removeContact = function(contactToRemove) {
+var index = this.contacts.indexOf(contactToRemove);
+this.contacts.splice(index, 1);
+};
+$scope.clearContact = function(contact) {
+contact.type = 'phone';
+contact.value = '';
+};
+}
+</script>
+<div id="ctrl-exmpl" ng-controller="SettingsController2">
+Name: <input type="text" ng-model="name"/>
+[ <a href="" ng-click="greet()">greet</a> ]<br/>
+Contact:
+<ul>
+<li ng-repeat="contact in contacts">
+<select ng-model="contact.type">
+<option>phone</option>
+<option>email</option>
+</select>
+<input type="text" ng-model="contact.value"/>
+[ <a href="" ng-click="clearContact(contact)">clear</a>
+| <a href="" ng-click="removeContact(contact)">X</a> ]
+</li>
+<li>[ <a href="" ng-click="addContact()">add</a> ]</li>
+</ul>
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should check controller', function() {
+var container = element(by.id('ctrl-exmpl'));
+expect(container.findElement(by.model('name'))
+.getAttribute('value')).toBe('John Smith');
+var firstRepeat =
+container.findElement(by.repeater('contact in contacts').row(0));
+var secondRepeat =
+container.findElement(by.repeater('contact in contacts').row(1));
+expect(firstRepeat.findElement(by.model('contact.value')).getAttribute('value'))
+.toBe('408 555 1212');
+expect(secondRepeat.findElement(by.model('contact.value')).getAttribute('value'))
+.toBe('john.smith@example.org');
+firstRepeat.findElement(by.linkText('clear')).click();
+expect(firstRepeat.findElement(by.model('contact.value')).getAttribute('value'))
+.toBe('');
+container.findElement(by.linkText('add')).click();
+expect(container.findElement(by.repeater('contact in contacts').row(2))
+.findElement(by.model('contact.value'))
+.getAttribute('value'))
+.toBe('yourname@example.org');
+});
+</file>
+</example>
+*/
+var ngControllerDirective = [function() {
+return {
+scope: true,
+controller: '@',
+priority: 500
+};
+}];
+/**
+* @ngdoc directive
+* @name ngCsp
+*
+* @element html
+* @description
+* Enables [CSP (Content Security Policy)](https://developer.mozilla.org/en/Security/CSP) support.
+*
+* This is necessary when developing things like Google Chrome Extensions.
+*
+* CSP forbids apps to use `eval` or `Function(string)` generated functions (among other things).
+* For us to be compatible, we just need to implement the "getterFn" in $parse without violating
+* any of these restrictions.
+*
+* AngularJS uses `Function(string)` generated functions as a speed optimization. Applying the `ngCsp`
+* directive will cause Angular to use CSP compatibility mode. When this mode is on AngularJS will
+* evaluate all expressions up to 30% slower than in non-CSP mode, but no security violations will
+* be raised.
+*
+* CSP forbids JavaScript to inline stylesheet rules. In non CSP mode Angular automatically
+* includes some CSS rules (e.g. {@link ng.directive:ngCloak ngCloak}).
+* To make those directives work in CSP mode, include the `angular-csp.css` manually.
+*
+* In order to use this feature put the `ngCsp` directive on the root element of the application.
+*
+* *Note: This directive is only available in the `ng-csp` and `data-ng-csp` attribute form.*
+*
+* @example
+* This example shows how to apply the `ngCsp` directive to the `html` tag.
+```html
+<!doctype html>
+<html ng-app ng-csp>
+...
+...
+</html>
+```
+*/
+// ngCsp is not implemented as a proper directive any more, because we need it be processed while we bootstrap
+// the system (before $parse is instantiated), for this reason we just have a csp() fn that looks for ng-csp attribute
+// anywhere in the current doc
+/**
+* @ngdoc directive
+* @name ngClick
+*
+* @description
+* The ngClick directive allows you to specify custom behavior when
+* an element is clicked.
+*
+* @element ANY
+* @priority 0
+* @param {expression} ngClick {@link guide/expression Expression} to evaluate upon
+* click. (Event object is available as `$event`)
+*
+* @example
+<example>
+<file name="index.html">
+<button ng-click="count = count + 1" ng-init="count=0">
+Increment
+</button>
+count: {{count}}
+</file>
+<file name="protractor.js" type="protractor">
+it('should check ng-click', function() {
+expect(element(by.binding('count')).getText()).toMatch('0');
+element(by.css('button')).click();
+expect(element(by.binding('count')).getText()).toMatch('1');
+});
+</file>
+</example>
+*/
+/*
+* A directive that allows creation of custom onclick handlers that are defined as angular
+* expressions and are compiled and executed within the current scope.
+*
+* Events that are handled via these handler are always configured not to propagate further.
+*/
+var ngEventDirectives = {};
+forEach(
+'click dblclick mousedown mouseup mouseover mouseout mousemove mouseenter mouseleave keydown keyup keypress submit focus blur copy cut paste'.split(' '),
+function(name) {
+var directiveName = directiveNormalize('ng-' + name);
+ngEventDirectives[directiveName] = ['$parse', function($parse) {
+return {
+compile: function($element, attr) {
+var fn = $parse(attr[directiveName]);
+return function(scope, element, attr) {
+element.on(lowercase(name), function(event) {
+scope.$apply(function() {
+fn(scope, {$event:event});
+});
+});
+};
+}
+};
+}];
+}
+);
+/**
+* @ngdoc directive
+* @name ngDblclick
+*
+* @description
+* The `ngDblclick` directive allows you to specify custom behavior on a dblclick event.
+*
+* @element ANY
+* @priority 0
+* @param {expression} ngDblclick {@link guide/expression Expression} to evaluate upon
+* a dblclick. (The Event object is available as `$event`)
+*
+* @example
+<example>
+<file name="index.html">
+<button ng-dblclick="count = count + 1" ng-init="count=0">
+Increment (on double click)
+</button>
+count: {{count}}
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngMousedown
+*
+* @description
+* The ngMousedown directive allows you to specify custom behavior on mousedown event.
+*
+* @element ANY
+* @priority 0
+* @param {expression} ngMousedown {@link guide/expression Expression} to evaluate upon
+* mousedown. (Event object is available as `$event`)
+*
+* @example
+<example>
+<file name="index.html">
+<button ng-mousedown="count = count + 1" ng-init="count=0">
+Increment (on mouse down)
+</button>
+count: {{count}}
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngMouseup
+*
+* @description
+* Specify custom behavior on mouseup event.
+*
+* @element ANY
+* @priority 0
+* @param {expression} ngMouseup {@link guide/expression Expression} to evaluate upon
+* mouseup. (Event object is available as `$event`)
+*
+* @example
+<example>
+<file name="index.html">
+<button ng-mouseup="count = count + 1" ng-init="count=0">
+Increment (on mouse up)
+</button>
+count: {{count}}
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngMouseover
+*
+* @description
+* Specify custom behavior on mouseover event.
+*
+* @element ANY
+* @priority 0
+* @param {expression} ngMouseover {@link guide/expression Expression} to evaluate upon
+* mouseover. (Event object is available as `$event`)
+*
+* @example
+<example>
+<file name="index.html">
+<button ng-mouseover="count = count + 1" ng-init="count=0">
+Increment (when mouse is over)
+</button>
+count: {{count}}
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngMouseenter
+*
+* @description
+* Specify custom behavior on mouseenter event.
+*
+* @element ANY
+* @priority 0
+* @param {expression} ngMouseenter {@link guide/expression Expression} to evaluate upon
+* mouseenter. (Event object is available as `$event`)
+*
+* @example
+<example>
+<file name="index.html">
+<button ng-mouseenter="count = count + 1" ng-init="count=0">
+Increment (when mouse enters)
+</button>
+count: {{count}}
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngMouseleave
+*
+* @description
+* Specify custom behavior on mouseleave event.
+*
+* @element ANY
+* @priority 0
+* @param {expression} ngMouseleave {@link guide/expression Expression} to evaluate upon
+* mouseleave. (Event object is available as `$event`)
+*
+* @example
+<example>
+<file name="index.html">
+<button ng-mouseleave="count = count + 1" ng-init="count=0">
+Increment (when mouse leaves)
+</button>
+count: {{count}}
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngMousemove
+*
+* @description
+* Specify custom behavior on mousemove event.
+*
+* @element ANY
+* @priority 0
+* @param {expression} ngMousemove {@link guide/expression Expression} to evaluate upon
+* mousemove. (Event object is available as `$event`)
+*
+* @example
+<example>
+<file name="index.html">
+<button ng-mousemove="count = count + 1" ng-init="count=0">
+Increment (when mouse moves)
+</button>
+count: {{count}}
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngKeydown
+*
+* @description
+* Specify custom behavior on keydown event.
+*
+* @element ANY
+* @priority 0
+* @param {expression} ngKeydown {@link guide/expression Expression} to evaluate upon
+* keydown. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)
+*
+* @example
+<example>
+<file name="index.html">
+<input ng-keydown="count = count + 1" ng-init="count=0">
+key down count: {{count}}
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngKeyup
+*
+* @description
+* Specify custom behavior on keyup event.
+*
+* @element ANY
+* @priority 0
+* @param {expression} ngKeyup {@link guide/expression Expression} to evaluate upon
+* keyup. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)
+*
+* @example
+<example>
+<file name="index.html">
+<input ng-keyup="count = count + 1" ng-init="count=0">
+key up count: {{count}}
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngKeypress
+*
+* @description
+* Specify custom behavior on keypress event.
+*
+* @element ANY
+* @param {expression} ngKeypress {@link guide/expression Expression} to evaluate upon
+* keypress. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)
+*
+* @example
+<example>
+<file name="index.html">
+<input ng-keypress="count = count + 1" ng-init="count=0">
+key press count: {{count}}
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngSubmit
+*
+* @description
+* Enables binding angular expressions to onsubmit events.
+*
+* Additionally it prevents the default action (which for form means sending the request to the
+* server and reloading the current page), but only if the form does not contain `action`,
+* `data-action`, or `x-action` attributes.
+*
+* @element form
+* @priority 0
+* @param {expression} ngSubmit {@link guide/expression Expression} to eval. (Event object is available as `$event`)
+*
+* @example
+<example>
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.list = [];
+$scope.text = 'hello';
+$scope.submit = function() {
+if ($scope.text) {
+$scope.list.push(this.text);
+$scope.text = '';
+}
+};
+}
+</script>
+<form ng-submit="submit()" ng-controller="Ctrl">
+Enter text and hit enter:
+<input type="text" ng-model="text" name="text" />
+<input type="submit" id="submit" value="Submit" />
+<pre>list={{list}}</pre>
+</form>
+</file>
+<file name="protractor.js" type="protractor">
+it('should check ng-submit', function() {
+expect(element(by.binding('list')).getText()).toBe('list=[]');
+element(by.css('#submit')).click();
+expect(element(by.binding('list')).getText()).toContain('hello');
+expect(element(by.input('text')).getAttribute('value')).toBe('');
+});
+it('should ignore empty strings', function() {
+expect(element(by.binding('list')).getText()).toBe('list=[]');
+element(by.css('#submit')).click();
+element(by.css('#submit')).click();
+expect(element(by.binding('list')).getText()).toContain('hello');
+});
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngFocus
+*
+* @description
+* Specify custom behavior on focus event.
+*
+* @element window, input, select, textarea, a
+* @priority 0
+* @param {expression} ngFocus {@link guide/expression Expression} to evaluate upon
+* focus. (Event object is available as `$event`)
+*
+* @example
+* See {@link ng.directive:ngClick ngClick}
+*/
+/**
+* @ngdoc directive
+* @name ngBlur
+*
+* @description
+* Specify custom behavior on blur event.
+*
+* @element window, input, select, textarea, a
+* @priority 0
+* @param {expression} ngBlur {@link guide/expression Expression} to evaluate upon
+* blur. (Event object is available as `$event`)
+*
+* @example
+* See {@link ng.directive:ngClick ngClick}
+*/
+/**
+* @ngdoc directive
+* @name ngCopy
+*
+* @description
+* Specify custom behavior on copy event.
+*
+* @element window, input, select, textarea, a
+* @priority 0
+* @param {expression} ngCopy {@link guide/expression Expression} to evaluate upon
+* copy. (Event object is available as `$event`)
+*
+* @example
+<example>
+<file name="index.html">
+<input ng-copy="copied=true" ng-init="copied=false; value='copy me'" ng-model="value">
+copied: {{copied}}
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngCut
+*
+* @description
+* Specify custom behavior on cut event.
+*
+* @element window, input, select, textarea, a
+* @priority 0
+* @param {expression} ngCut {@link guide/expression Expression} to evaluate upon
+* cut. (Event object is available as `$event`)
+*
+* @example
+<example>
+<file name="index.html">
+<input ng-cut="cut=true" ng-init="cut=false; value='cut me'" ng-model="value">
+cut: {{cut}}
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngPaste
+*
+* @description
+* Specify custom behavior on paste event.
+*
+* @element window, input, select, textarea, a
+* @priority 0
+* @param {expression} ngPaste {@link guide/expression Expression} to evaluate upon
+* paste. (Event object is available as `$event`)
+*
+* @example
+<example>
+<file name="index.html">
+<input ng-paste="paste=true" ng-init="paste=false" placeholder='paste here'>
+pasted: {{paste}}
+</file>
+</example>
+*/
+/**
+* @ngdoc directive
+* @name ngIf
+* @restrict A
+*
+* @description
+* The `ngIf` directive removes or recreates a portion of the DOM tree based on an
+* {expression}. If the expression assigned to `ngIf` evaluates to a false
+* value then the element is removed from the DOM, otherwise a clone of the
+* element is reinserted into the DOM.
+*
+* `ngIf` differs from `ngShow` and `ngHide` in that `ngIf` completely removes and recreates the
+* element in the DOM rather than changing its visibility via the `display` css property.  A common
+* case when this difference is significant is when using css selectors that rely on an element's
+* position within the DOM, such as the `:first-child` or `:last-child` pseudo-classes.
+*
+* Note that when an element is removed using `ngIf` its scope is destroyed and a new scope
+* is created when the element is restored.  The scope created within `ngIf` inherits from
+* its parent scope using
+* [prototypal inheritance](https://github.com/angular/angular.js/wiki/The-Nuances-of-Scope-Prototypal-Inheritance).
+* An important implication of this is if `ngModel` is used within `ngIf` to bind to
+* a javascript primitive defined in the parent scope. In this case any modifications made to the
+* variable within the child scope will override (hide) the value in the parent scope.
+*
+* Also, `ngIf` recreates elements using their compiled state. An example of this behavior
+* is if an element's class attribute is directly modified after it's compiled, using something like
+* jQuery's `.addClass()` method, and the element is later removed. When `ngIf` recreates the element
+* the added class will be lost because the original compiled state is used to regenerate the element.
+*
+* Additionally, you can provide animations via the `ngAnimate` module to animate the `enter`
+* and `leave` effects.
+*
+* @animations
+* enter - happens just after the ngIf contents change and a new DOM element is created and injected into the ngIf container
+* leave - happens just before the ngIf contents are removed from the DOM
+*
+* @element ANY
+* @scope
+* @priority 600
+* @param {expression} ngIf If the {@link guide/expression expression} is falsy then
+*     the element is removed from the DOM tree. If it is truthy a copy of the compiled
+*     element is added to the DOM tree.
+*
+* @example
+<example module="ngAnimate" deps="angular-animate.js" animations="true">
+<file name="index.html">
+Click me: <input type="checkbox" ng-model="checked" ng-init="checked=true" /><br/>
+Show when checked:
+<span ng-if="checked" class="animate-if">
+I'm removed when the checkbox is unchecked.
+</span>
+</file>
+<file name="animations.css">
+.animate-if {
+background:white;
+border:1px solid black;
+padding:10px;
+}
+.animate-if.ng-enter, .animate-if.ng-leave {
+-webkit-transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;
+transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;
+}
+.animate-if.ng-enter,
+.animate-if.ng-leave.ng-leave-active {
+opacity:0;
+}
+.animate-if.ng-leave,
+.animate-if.ng-enter.ng-enter-active {
+opacity:1;
+}
+</file>
+</example>
+*/
+var ngIfDirective = ['$animate', function($animate) {
+return {
+transclude: 'element',
+priority: 600,
+terminal: true,
+restrict: 'A',
+$$tlb: true,
+link: function ($scope, $element, $attr, ctrl, $transclude) {
+var block, childScope, previousElements;
+$scope.$watch($attr.ngIf, function ngIfWatchAction(value) {
+if (toBoolean(value)) {
+if (!childScope) {
+childScope = $scope.$new();
+$transclude(childScope, function (clone) {
+clone[clone.length++] = document.createComment(' end ngIf: ' + $attr.ngIf + ' ');
+// Note: We only need the first/last node of the cloned nodes.
+// However, we need to keep the reference to the jqlite wrapper as it might be changed later
+// by a directive with templateUrl when it's template arrives.
+block = {
+clone: clone
+};
+$animate.enter(clone, $element.parent(), $element);
+});
+}
+} else {
+if(previousElements) {
+previousElements.remove();
+previousElements = null;
+}
+if(childScope) {
+childScope.$destroy();
+childScope = null;
+}
+if(block) {
+previousElements = getBlockElements(block.clone);
+$animate.leave(previousElements, function() {
+previousElements = null;
+});
+block = null;
+}
+}
+});
+}
+};
+}];
+/**
+* @ngdoc directive
+* @name ngInclude
+* @restrict ECA
+*
+* @description
+* Fetches, compiles and includes an external HTML fragment.
+*
+* By default, the template URL is restricted to the same domain and protocol as the
+* application document. This is done by calling {@link ng.$sce#getTrustedResourceUrl
+* $sce.getTrustedResourceUrl} on it. To load templates from other domains or protocols
+* you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist them} or
+* [wrap them](ng.$sce#trustAsResourceUrl) as trusted values. Refer to Angular's {@link
+* ng.$sce Strict Contextual Escaping}.
+*
+* In addition, the browser's
+* [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)
+* and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)
+* policy may further restrict whether the template is successfully loaded.
+* For example, `ngInclude` won't work for cross-domain requests on all browsers and for `file://`
+* access on some browsers.
+*
+* @animations
+* enter - animation is used to bring new content into the browser.
+* leave - animation is used to animate existing content away.
+*
+* The enter and leave animation occur concurrently.
+*
+* @scope
+* @priority 400
+*
+* @param {string} ngInclude|src angular expression evaluating to URL. If the source is a string constant,
+*                 make sure you wrap it in **single** quotes, e.g. `src="'myPartialTemplate.html'"`.
+* @param {string=} onload Expression to evaluate when a new partial is loaded.
+*
+* @param {string=} autoscroll Whether `ngInclude` should call {@link ng.$anchorScroll
+*                  $anchorScroll} to scroll the viewport after the content is loaded.
+*
+*                  - If the attribute is not set, disable scrolling.
+*                  - If the attribute is set without value, enable scrolling.
+*                  - Otherwise enable scrolling only if the expression evaluates to truthy value.
+*
+* @example
+<example module="ngAnimate" deps="angular-animate.js" animations="true">
+<file name="index.html">
+<div ng-controller="Ctrl">
+<select ng-model="template" ng-options="t.name for t in templates">
+<option value="">(blank)</option>
+</select>
+url of the template: <tt>{{template.url}}</tt>
+<hr/>
+<div class="slide-animate-container">
+<div class="slide-animate" ng-include="template.url"></div>
+</div>
+</div>
+</file>
+<file name="script.js">
+function Ctrl($scope) {
+$scope.templates =
+[ { name: 'template1.html', url: 'template1.html'},
+{ name: 'template2.html', url: 'template2.html'} ];
+$scope.template = $scope.templates[0];
+}
+</file>
+<file name="template1.html">
+Content of template1.html
+</file>
+<file name="template2.html">
+Content of template2.html
+</file>
+<file name="animations.css">
+.slide-animate-container {
+position:relative;
+background:white;
+border:1px solid black;
+height:40px;
+overflow:hidden;
+}
+.slide-animate {
+padding:10px;
+}
+.slide-animate.ng-enter, .slide-animate.ng-leave {
+-webkit-transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;
+transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;
+position:absolute;
+top:0;
+left:0;
+right:0;
+bottom:0;
+display:block;
+padding:10px;
+}
+.slide-animate.ng-enter {
+top:-50px;
+}
+.slide-animate.ng-enter.ng-enter-active {
+top:0;
+}
+.slide-animate.ng-leave {
+top:0;
+}
+.slide-animate.ng-leave.ng-leave-active {
+top:50px;
+}
+</file>
+<file name="protractor.js" type="protractor">
+var templateSelect = element(by.model('template'));
+var includeElem = element(by.css('[ng-include]'));
+it('should load template1.html', function() {
+expect(includeElem.getText()).toMatch(/Content of template1.html/);
+});
+it('should load template2.html', function() {
+if (browser.params.browser == 'firefox') {
+// Firefox can't handle using selects
+// See https://github.com/angular/protractor/issues/480
+return;
+}
+templateSelect.click();
+templateSelect.element.all(by.css('option')).get(2).click();
+expect(includeElem.getText()).toMatch(/Content of template2.html/);
+});
+it('should change to blank', function() {
+if (browser.params.browser == 'firefox') {
+// Firefox can't handle using selects
+return;
+}
+templateSelect.click();
+templateSelect.element.all(by.css('option')).get(0).click();
+expect(includeElem.isPresent()).toBe(false);
+});
+</file>
+</example>
+*/
+/**
+* @ngdoc event
+* @name ngInclude#$includeContentRequested
+* @eventType emit on the scope ngInclude was declared in
+* @description
+* Emitted every time the ngInclude content is requested.
+*/
+/**
+* @ngdoc event
+* @name ngInclude#$includeContentLoaded
+* @eventType emit on the current ngInclude scope
+* @description
+* Emitted every time the ngInclude content is reloaded.
+*/
+var ngIncludeDirective = ['$http', '$templateCache', '$anchorScroll', '$animate', '$sce',
+function($http,   $templateCache,   $anchorScroll,   $animate,   $sce) {
+return {
+restrict: 'ECA',
+priority: 400,
+terminal: true,
+transclude: 'element',
+controller: angular.noop,
+compile: function(element, attr) {
+var srcExp = attr.ngInclude || attr.src,
+onloadExp = attr.onload || '',
+autoScrollExp = attr.autoscroll;
+return function(scope, $element, $attr, ctrl, $transclude) {
+var changeCounter = 0,
+currentScope,
+previousElement,
+currentElement;
+var cleanupLastIncludeContent = function() {
+if(previousElement) {
+previousElement.remove();
+previousElement = null;
+}
+if(currentScope) {
+currentScope.$destroy();
+currentScope = null;
+}
+if(currentElement) {
+$animate.leave(currentElement, function() {
+previousElement = null;
+});
+previousElement = currentElement;
+currentElement = null;
+}
+};
+scope.$watch($sce.parseAsResourceUrl(srcExp), function ngIncludeWatchAction(src) {
+var afterAnimation = function() {
+if (isDefined(autoScrollExp) && (!autoScrollExp || scope.$eval(autoScrollExp))) {
+$anchorScroll();
+}
+};
+var thisChangeId = ++changeCounter;
+if (src) {
+$http.get(src, {cache: $templateCache}).success(function(response) {
+if (thisChangeId !== changeCounter) return;
+var newScope = scope.$new();
+ctrl.template = response;
+// Note: This will also link all children of ng-include that were contained in the original
+// html. If that content contains controllers, ... they could pollute/change the scope.
+// However, using ng-include on an element with additional content does not make sense...
+// Note: We can't remove them in the cloneAttchFn of $transclude as that
+// function is called before linking the content, which would apply child
+// directives to non existing elements.
+var clone = $transclude(newScope, function(clone) {
+cleanupLastIncludeContent();
+$animate.enter(clone, null, $element, afterAnimation);
+});
+currentScope = newScope;
+currentElement = clone;
+currentScope.$emit('$includeContentLoaded');
+scope.$eval(onloadExp);
+}).error(function() {
+if (thisChangeId === changeCounter) cleanupLastIncludeContent();
+});
+scope.$emit('$includeContentRequested');
+} else {
+cleanupLastIncludeContent();
+ctrl.template = null;
+}
+});
+};
+}
+};
+}];
+// This directive is called during the $transclude call of the first `ngInclude` directive.
+// It will replace and compile the content of the element with the loaded template.
+// We need this directive so that the element content is already filled when
+// the link function of another directive on the same element as ngInclude
+// is called.
+var ngIncludeFillContentDirective = ['$compile',
+function($compile) {
+return {
+restrict: 'ECA',
+priority: -400,
+require: 'ngInclude',
+link: function(scope, $element, $attr, ctrl) {
+$element.html(ctrl.template);
+$compile($element.contents())(scope);
+}
+};
+}];
+/**
+* @ngdoc directive
+* @name ngInit
+* @restrict AC
+*
+* @description
+* The `ngInit` directive allows you to evaluate an expression in the
+* current scope.
+*
+* <div class="alert alert-error">
+* The only appropriate use of `ngInit` is for aliasing special properties of
+* {@link ng.directive:ngRepeat `ngRepeat`}, as seen in the demo below. Besides this case, you
+* should use {@link guide/controller controllers} rather than `ngInit`
+* to initialize values on a scope.
+* </div>
+* <div class="alert alert-warning">
+* **Note**: If you have assignment in `ngInit` along with {@link ng.$filter `$filter`}, make
+* sure you have parenthesis for correct precedence:
+* <pre class="prettyprint">
+*   <div ng-init="test1 = (data | orderBy:'name')"></div>
+* </pre>
+* </div>
+*
+* @priority 450
+*
+* @element ANY
+* @param {expression} ngInit {@link guide/expression Expression} to eval.
+*
+* @example
+<example>
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.list = [['a', 'b'], ['c', 'd']];
+}
+</script>
+<div ng-controller="Ctrl">
+<div ng-repeat="innerList in list" ng-init="outerIndex = $index">
+<div ng-repeat="value in innerList" ng-init="innerIndex = $index">
+<span class="example-init">list[ {{outerIndex}} ][ {{innerIndex}} ] = {{value}};</span>
+</div>
+</div>
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should alias index positions', function() {
+var elements = element.all(by.css('.example-init'));
+expect(elements.get(0).getText()).toBe('list[ 0 ][ 0 ] = a;');
+expect(elements.get(1).getText()).toBe('list[ 0 ][ 1 ] = b;');
+expect(elements.get(2).getText()).toBe('list[ 1 ][ 0 ] = c;');
+expect(elements.get(3).getText()).toBe('list[ 1 ][ 1 ] = d;');
+});
+</file>
+</example>
+*/
+var ngInitDirective = ngDirective({
+priority: 450,
+compile: function() {
+return {
+pre: function(scope, element, attrs) {
+scope.$eval(attrs.ngInit);
+}
+};
+}
+});
+/**
+* @ngdoc directive
+* @name ngNonBindable
+* @restrict AC
+* @priority 1000
+*
+* @description
+* The `ngNonBindable` directive tells Angular not to compile or bind the contents of the current
+* DOM element. This is useful if the element contains what appears to be Angular directives and
+* bindings but which should be ignored by Angular. This could be the case if you have a site that
+* displays snippets of code, for instance.
+*
+* @element ANY
+*
+* @example
+* In this example there are two locations where a simple interpolation binding (`{{}}`) is present,
+* but the one wrapped in `ngNonBindable` is left alone.
+*
+* @example
+<example>
+<file name="index.html">
+<div>Normal: {{1 + 2}}</div>
+<div ng-non-bindable>Ignored: {{1 + 2}}</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should check ng-non-bindable', function() {
+expect(element(by.binding('1 + 2')).getText()).toContain('3');
+expect(element.all(by.css('div')).last().getText()).toMatch(/1 \+ 2/);
+});
+</file>
+</example>
+*/
+var ngNonBindableDirective = ngDirective({ terminal: true, priority: 1000 });
+/**
+* @ngdoc directive
+* @name ngPluralize
+* @restrict EA
+*
+* @description
+* `ngPluralize` is a directive that displays messages according to en-US localization rules.
+* These rules are bundled with angular.js, but can be overridden
+* (see {@link guide/i18n Angular i18n} dev guide). You configure ngPluralize directive
+* by specifying the mappings between
+* [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)
+* and the strings to be displayed.
+*
+* # Plural categories and explicit number rules
+* There are two
+* [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)
+* in Angular's default en-US locale: "one" and "other".
+*
+* While a plural category may match many numbers (for example, in en-US locale, "other" can match
+* any number that is not 1), an explicit number rule can only match one number. For example, the
+* explicit number rule for "3" matches the number 3. There are examples of plural categories
+* and explicit number rules throughout the rest of this documentation.
+*
+* # Configuring ngPluralize
+* You configure ngPluralize by providing 2 attributes: `count` and `when`.
+* You can also provide an optional attribute, `offset`.
+*
+* The value of the `count` attribute can be either a string or an {@link guide/expression
+* Angular expression}; these are evaluated on the current scope for its bound value.
+*
+* The `when` attribute specifies the mappings between plural categories and the actual
+* string to be displayed. The value of the attribute should be a JSON object.
+*
+* The following example shows how to configure ngPluralize:
+*
+* ```html
+* <ng-pluralize count="personCount"
+when="{'0': 'Nobody is viewing.',
+*                      'one': '1 person is viewing.',
+*                      'other': '{} people are viewing.'}">
+* </ng-pluralize>
+*```
+*
+* In the example, `"0: Nobody is viewing."` is an explicit number rule. If you did not
+* specify this rule, 0 would be matched to the "other" category and "0 people are viewing"
+* would be shown instead of "Nobody is viewing". You can specify an explicit number rule for
+* other numbers, for example 12, so that instead of showing "12 people are viewing", you can
+* show "a dozen people are viewing".
+*
+* You can use a set of closed braces (`{}`) as a placeholder for the number that you want substituted
+* into pluralized strings. In the previous example, Angular will replace `{}` with
+* <span ng-non-bindable>`{{personCount}}`</span>. The closed braces `{}` is a placeholder
+* for <span ng-non-bindable>{{numberExpression}}</span>.
+*
+* # Configuring ngPluralize with offset
+* The `offset` attribute allows further customization of pluralized text, which can result in
+* a better user experience. For example, instead of the message "4 people are viewing this document",
+* you might display "John, Kate and 2 others are viewing this document".
+* The offset attribute allows you to offset a number by any desired value.
+* Let's take a look at an example:
+*
+* ```html
+* <ng-pluralize count="personCount" offset=2
+*               when="{'0': 'Nobody is viewing.',
+*                      '1': '{{person1}} is viewing.',
+*                      '2': '{{person1}} and {{person2}} are viewing.',
+*                      'one': '{{person1}}, {{person2}} and one other person are viewing.',
+*                      'other': '{{person1}}, {{person2}} and {} other people are viewing.'}">
+* </ng-pluralize>
+* ```
+*
+* Notice that we are still using two plural categories(one, other), but we added
+* three explicit number rules 0, 1 and 2.
+* When one person, perhaps John, views the document, "John is viewing" will be shown.
+* When three people view the document, no explicit number rule is found, so
+* an offset of 2 is taken off 3, and Angular uses 1 to decide the plural category.
+* In this case, plural category 'one' is matched and "John, Marry and one other person are viewing"
+* is shown.
+*
+* Note that when you specify offsets, you must provide explicit number rules for
+* numbers from 0 up to and including the offset. If you use an offset of 3, for example,
+* you must provide explicit number rules for 0, 1, 2 and 3. You must also provide plural strings for
+* plural categories "one" and "other".
+*
+* @param {string|expression} count The variable to be bound to.
+* @param {string} when The mapping between plural category to its corresponding strings.
+* @param {number=} offset Offset to deduct from the total number.
+*
+* @example
+<example>
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.person1 = 'Igor';
+$scope.person2 = 'Misko';
+$scope.personCount = 1;
+}
+</script>
+<div ng-controller="Ctrl">
+Person 1:<input type="text" ng-model="person1" value="Igor" /><br/>
+Person 2:<input type="text" ng-model="person2" value="Misko" /><br/>
+Number of People:<input type="text" ng-model="personCount" value="1" /><br/>
+<!--- Example with simple pluralization rules for en locale --->
+Without Offset:
+<ng-pluralize count="personCount"
+when="{'0': 'Nobody is viewing.',
+'one': '1 person is viewing.',
+'other': '{} people are viewing.'}">
+</ng-pluralize><br>
+<!--- Example with offset --->
+With Offset(2):
+<ng-pluralize count="personCount" offset=2
+when="{'0': 'Nobody is viewing.',
+'1': '{{person1}} is viewing.',
+'2': '{{person1}} and {{person2}} are viewing.',
+'one': '{{person1}}, {{person2}} and one other person are viewing.',
+'other': '{{person1}}, {{person2}} and {} other people are viewing.'}">
+</ng-pluralize>
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should show correct pluralized string', function() {
+var withoutOffset = element.all(by.css('ng-pluralize')).get(0);
+var withOffset = element.all(by.css('ng-pluralize')).get(1);
+var countInput = element(by.model('personCount'));
+expect(withoutOffset.getText()).toEqual('1 person is viewing.');
+expect(withOffset.getText()).toEqual('Igor is viewing.');
+countInput.clear();
+countInput.sendKeys('0');
+expect(withoutOffset.getText()).toEqual('Nobody is viewing.');
+expect(withOffset.getText()).toEqual('Nobody is viewing.');
+countInput.clear();
+countInput.sendKeys('2');
+expect(withoutOffset.getText()).toEqual('2 people are viewing.');
+expect(withOffset.getText()).toEqual('Igor and Misko are viewing.');
+countInput.clear();
+countInput.sendKeys('3');
+expect(withoutOffset.getText()).toEqual('3 people are viewing.');
+expect(withOffset.getText()).toEqual('Igor, Misko and one other person are viewing.');
+countInput.clear();
+countInput.sendKeys('4');
+expect(withoutOffset.getText()).toEqual('4 people are viewing.');
+expect(withOffset.getText()).toEqual('Igor, Misko and 2 other people are viewing.');
+});
+it('should show data-bound names', function() {
+var withOffset = element.all(by.css('ng-pluralize')).get(1);
+var personCount = element(by.model('personCount'));
+var person1 = element(by.model('person1'));
+var person2 = element(by.model('person2'));
+personCount.clear();
+personCount.sendKeys('4');
+person1.clear();
+person1.sendKeys('Di');
+person2.clear();
+person2.sendKeys('Vojta');
+expect(withOffset.getText()).toEqual('Di, Vojta and 2 other people are viewing.');
+});
+</file>
+</example>
+*/
+var ngPluralizeDirective = ['$locale', '$interpolate', function($locale, $interpolate) {
+var BRACE = /{}/g;
+return {
+restrict: 'EA',
+link: function(scope, element, attr) {
+var numberExp = attr.count,
+whenExp = attr.$attr.when && element.attr(attr.$attr.when), // we have {{}} in attrs
+offset = attr.offset || 0,
+whens = scope.$eval(whenExp) || {},
+whensExpFns = {},
+startSymbol = $interpolate.startSymbol(),
+endSymbol = $interpolate.endSymbol(),
+isWhen = /^when(Minus)?(.+)$/;
+forEach(attr, function(expression, attributeName) {
+if (isWhen.test(attributeName)) {
+whens[lowercase(attributeName.replace('when', '').replace('Minus', '-'))] =
+element.attr(attr.$attr[attributeName]);
+}
+});
+forEach(whens, function(expression, key) {
+whensExpFns[key] =
+$interpolate(expression.replace(BRACE, startSymbol + numberExp + '-' +
+offset + endSymbol));
+});
+scope.$watch(function ngPluralizeWatch() {
+var value = parseFloat(scope.$eval(numberExp));
+if (!isNaN(value)) {
+//if explicit number rule such as 1, 2, 3... is defined, just use it. Otherwise,
+//check it against pluralization rules in $locale service
+if (!(value in whens)) value = $locale.pluralCat(value - offset);
+return whensExpFns[value](scope, element, true);
+} else {
+return '';
+}
+}, function ngPluralizeWatchAction(newVal) {
+element.text(newVal);
+});
+}
+};
+}];
+/**
+* @ngdoc directive
+* @name ngRepeat
+*
+* @description
+* The `ngRepeat` directive instantiates a template once per item from a collection. Each template
+* instance gets its own scope, where the given loop variable is set to the current collection item,
+* and `$index` is set to the item index or key.
+*
+* Special properties are exposed on the local scope of each template instance, including:
+*
+* | Variable  | Type            | Details                                                                     |
+* |-----------|-----------------|-----------------------------------------------------------------------------|
+* | `$index`  | {@type number}  | iterator offset of the repeated element (0..length-1)                       |
+* | `$first`  | {@type boolean} | true if the repeated element is first in the iterator.                      |
+* | `$middle` | {@type boolean} | true if the repeated element is between the first and last in the iterator. |
+* | `$last`   | {@type boolean} | true if the repeated element is last in the iterator.                       |
+* | `$even`   | {@type boolean} | true if the iterator position `$index` is even (otherwise false).           |
+* | `$odd`    | {@type boolean} | true if the iterator position `$index` is odd (otherwise false).            |
+*
+* Creating aliases for these properties is possible with {@link ng.directive:ngInit `ngInit`}.
+* This may be useful when, for instance, nesting ngRepeats.
+*
+* # Special repeat start and end points
+* To repeat a series of elements instead of just one parent element, ngRepeat (as well as other ng directives) supports extending
+* the range of the repeater by defining explicit start and end points by using **ng-repeat-start** and **ng-repeat-end** respectively.
+* The **ng-repeat-start** directive works the same as **ng-repeat**, but will repeat all the HTML code (including the tag it's defined on)
+* up to and including the ending HTML tag where **ng-repeat-end** is placed.
+*
+* The example below makes use of this feature:
+* ```html
+*   <header ng-repeat-start="item in items">
+*     Header {{ item }}
+*   </header>
+*   <div class="body">
+*     Body {{ item }}
+*   </div>
+*   <footer ng-repeat-end>
+*     Footer {{ item }}
+*   </footer>
+* ```
+*
+* And with an input of {@type ['A','B']} for the items variable in the example above, the output will evaluate to:
+* ```html
+*   <header>
+*     Header A
+*   </header>
+*   <div class="body">
+*     Body A
+*   </div>
+*   <footer>
+*     Footer A
+*   </footer>
+*   <header>
+*     Header B
+*   </header>
+*   <div class="body">
+*     Body B
+*   </div>
+*   <footer>
+*     Footer B
+*   </footer>
+* ```
+*
+* The custom start and end points for ngRepeat also support all other HTML directive syntax flavors provided in AngularJS (such
+* as **data-ng-repeat-start**, **x-ng-repeat-start** and **ng:repeat-start**).
+*
+* @animations
+* **.enter** - when a new item is added to the list or when an item is revealed after a filter
+*
+* **.leave** - when an item is removed from the list or when an item is filtered out
+*
+* **.move** - when an adjacent item is filtered out causing a reorder or when the item contents are reordered
+*
+* @element ANY
+* @scope
+* @priority 1000
+* @param {repeat_expression} ngRepeat The expression indicating how to enumerate a collection. These
+*   formats are currently supported:
+*
+*   * `variable in expression` – where variable is the user defined loop variable and `expression`
+*     is a scope expression giving the collection to enumerate.
+*
+*     For example: `album in artist.albums`.
+*
+*   * `(key, value) in expression` – where `key` and `value` can be any user defined identifiers,
+*     and `expression` is the scope expression giving the collection to enumerate.
+*
+*     For example: `(name, age) in {'adam':10, 'amalie':12}`.
+*
+*   * `variable in expression track by tracking_expression` – You can also provide an optional tracking function
+*     which can be used to associate the objects in the collection with the DOM elements. If no tracking function
+*     is specified the ng-repeat associates elements by identity in the collection. It is an error to have
+*     more than one tracking function to resolve to the same key. (This would mean that two distinct objects are
+*     mapped to the same DOM element, which is not possible.)  Filters should be applied to the expression,
+*     before specifying a tracking expression.
+*
+*     For example: `item in items` is equivalent to `item in items track by $id(item)'. This implies that the DOM elements
+*     will be associated by item identity in the array.
+*
+*     For example: `item in items track by $id(item)`. A built in `$id()` function can be used to assign a unique
+*     `$$hashKey` property to each item in the array. This property is then used as a key to associated DOM elements
+*     with the corresponding item in the array by identity. Moving the same object in array would move the DOM
+*     element in the same way in the DOM.
+*
+*     For example: `item in items track by item.id` is a typical pattern when the items come from the database. In this
+*     case the object identity does not matter. Two objects are considered equivalent as long as their `id`
+*     property is same.
+*
+*     For example: `item in items | filter:searchText track by item.id` is a pattern that might be used to apply a filter
+*     to items in conjunction with a tracking expression.
+*
+* @example
+* This example initializes the scope to a list of names and
+* then uses `ngRepeat` to display every person:
+<example module="ngAnimate" deps="angular-animate.js" animations="true">
+<file name="index.html">
+<div ng-init="friends = [
+{name:'John', age:25, gender:'boy'},
+{name:'Jessie', age:30, gender:'girl'},
+{name:'Johanna', age:28, gender:'girl'},
+{name:'Joy', age:15, gender:'girl'},
+{name:'Mary', age:28, gender:'girl'},
+{name:'Peter', age:95, gender:'boy'},
+{name:'Sebastian', age:50, gender:'boy'},
+{name:'Erika', age:27, gender:'girl'},
+{name:'Patrick', age:40, gender:'boy'},
+{name:'Samantha', age:60, gender:'girl'}
+]">
+I have {{friends.length}} friends. They are:
+<input type="search" ng-model="q" placeholder="filter friends..." />
+<ul class="example-animate-container">
+<li class="animate-repeat" ng-repeat="friend in friends | filter:q">
+[{{$index + 1}}] {{friend.name}} who is {{friend.age}} years old.
+</li>
+</ul>
+</div>
+</file>
+<file name="animations.css">
+.example-animate-container {
+background:white;
+border:1px solid black;
+list-style:none;
+margin:0;
+padding:0 10px;
+}
+.animate-repeat {
+line-height:40px;
+list-style:none;
+box-sizing:border-box;
+}
+.animate-repeat.ng-move,
+.animate-repeat.ng-enter,
+.animate-repeat.ng-leave {
+-webkit-transition:all linear 0.5s;
+transition:all linear 0.5s;
+}
+.animate-repeat.ng-leave.ng-leave-active,
+.animate-repeat.ng-move,
+.animate-repeat.ng-enter {
+opacity:0;
+max-height:0;
+}
+.animate-repeat.ng-leave,
+.animate-repeat.ng-move.ng-move-active,
+.animate-repeat.ng-enter.ng-enter-active {
+opacity:1;
+max-height:40px;
+}
+</file>
+<file name="protractor.js" type="protractor">
+var friends = element.all(by.repeater('friend in friends'));
+it('should render initial data set', function() {
+expect(friends.count()).toBe(10);
+expect(friends.get(0).getText()).toEqual('[1] John who is 25 years old.');
+expect(friends.get(1).getText()).toEqual('[2] Jessie who is 30 years old.');
+expect(friends.last().getText()).toEqual('[10] Samantha who is 60 years old.');
+expect(element(by.binding('friends.length')).getText())
+.toMatch("I have 10 friends. They are:");
+});
+it('should update repeater when filter predicate changes', function() {
+expect(friends.count()).toBe(10);
+element(by.model('q')).sendKeys('ma');
+expect(friends.count()).toBe(2);
+expect(friends.get(0).getText()).toEqual('[1] Mary who is 28 years old.');
+expect(friends.last().getText()).toEqual('[2] Samantha who is 60 years old.');
+});
+</file>
+</example>
+*/
+var ngRepeatDirective = ['$parse', '$animate', function($parse, $animate) {
+var NG_REMOVED = '$$NG_REMOVED';
+var ngRepeatMinErr = minErr('ngRepeat');
+return {
+transclude: 'element',
+priority: 1000,
+terminal: true,
+$$tlb: true,
+link: function($scope, $element, $attr, ctrl, $transclude){
+var expression = $attr.ngRepeat;
+var match = expression.match(/^\s*([\s\S]+?)\s+in\s+([\s\S]+?)(?:\s+track\s+by\s+([\s\S]+?))?\s*$/),
+trackByExp, trackByExpGetter, trackByIdExpFn, trackByIdArrayFn, trackByIdObjFn,
+lhs, rhs, valueIdentifier, keyIdentifier,
+hashFnLocals = {$id: hashKey};
+if (!match) {
+throw ngRepeatMinErr('iexp', "Expected expression in form of '_item_ in _collection_[ track by _id_]' but got '{0}'.",
+expression);
+}
+lhs = match[1];
+rhs = match[2];
+trackByExp = match[3];
+if (trackByExp) {
+trackByExpGetter = $parse(trackByExp);
+trackByIdExpFn = function(key, value, index) {
+// assign key, value, and $index to the locals so that they can be used in hash functions
+if (keyIdentifier) hashFnLocals[keyIdentifier] = key;
+hashFnLocals[valueIdentifier] = value;
+hashFnLocals.$index = index;
+return trackByExpGetter($scope, hashFnLocals);
+};
+} else {
+trackByIdArrayFn = function(key, value) {
+return hashKey(value);
+};
+trackByIdObjFn = function(key) {
+return key;
+};
+}
+match = lhs.match(/^(?:([\$\w]+)|\(([\$\w]+)\s*,\s*([\$\w]+)\))$/);
+if (!match) {
+throw ngRepeatMinErr('iidexp', "'_item_' in '_item_ in _collection_' should be an identifier or '(_key_, _value_)' expression, but got '{0}'.",
+lhs);
+}
+valueIdentifier = match[3] || match[1];
+keyIdentifier = match[2];
+// Store a list of elements from previous run. This is a hash where key is the item from the
+// iterator, and the value is objects with following properties.
+//   - scope: bound scope
+//   - element: previous element.
+//   - index: position
+var lastBlockMap = {};
+//watch props
+$scope.$watchCollection(rhs, function ngRepeatAction(collection){
+var index, length,
+previousNode = $element[0],     // current position of the node
+nextNode,
+// Same as lastBlockMap but it has the current state. It will become the
+// lastBlockMap on the next iteration.
+nextBlockMap = {},
+arrayLength,
+childScope,
+key, value, // key/value of iteration
+trackById,
+trackByIdFn,
+collectionKeys,
+block,       // last object information {scope, element, id}
+nextBlockOrder = [],
+elementsToRemove;
+if (isArrayLike(collection)) {
+collectionKeys = collection;
+trackByIdFn = trackByIdExpFn || trackByIdArrayFn;
+} else {
+trackByIdFn = trackByIdExpFn || trackByIdObjFn;
+// if object, extract keys, sort them and use to determine order of iteration over obj props
+collectionKeys = [];
+for (key in collection) {
+if (collection.hasOwnProperty(key) && key.charAt(0) != '$') {
+collectionKeys.push(key);
+}
+}
+collectionKeys.sort();
+}
+arrayLength = collectionKeys.length;
+// locate existing items
+length = nextBlockOrder.length = collectionKeys.length;
+for(index = 0; index < length; index++) {
+key = (collection === collectionKeys) ? index : collectionKeys[index];
+value = collection[key];
+trackById = trackByIdFn(key, value, index);
+assertNotHasOwnProperty(trackById, '`track by` id');
+if(lastBlockMap.hasOwnProperty(trackById)) {
+block = lastBlockMap[trackById];
+delete lastBlockMap[trackById];
+nextBlockMap[trackById] = block;
+nextBlockOrder[index] = block;
+} else if (nextBlockMap.hasOwnProperty(trackById)) {
+// restore lastBlockMap
+forEach(nextBlockOrder, function(block) {
+if (block && block.scope) lastBlockMap[block.id] = block;
+});
+// This is a duplicate and we need to throw an error
+throw ngRepeatMinErr('dupes', "Duplicates in a repeater are not allowed. Use 'track by' expression to specify unique keys. Repeater: {0}, Duplicate key: {1}",
+expression,       trackById);
+} else {
+// new never before seen block
+nextBlockOrder[index] = { id: trackById };
+nextBlockMap[trackById] = false;
+}
+}
+// remove existing items
+for (key in lastBlockMap) {
+// lastBlockMap is our own object so we don't need to use special hasOwnPropertyFn
+if (lastBlockMap.hasOwnProperty(key)) {
+block = lastBlockMap[key];
+elementsToRemove = getBlockElements(block.clone);
+$animate.leave(elementsToRemove);
+forEach(elementsToRemove, function(element) { element[NG_REMOVED] = true; });
+block.scope.$destroy();
+}
+}
+// we are not using forEach for perf reasons (trying to avoid #call)
+for (index = 0, length = collectionKeys.length; index < length; index++) {
+key = (collection === collectionKeys) ? index : collectionKeys[index];
+value = collection[key];
+block = nextBlockOrder[index];
+if (nextBlockOrder[index - 1]) previousNode = getBlockEnd(nextBlockOrder[index - 1]);
+if (block.scope) {
+// if we have already seen this object, then we need to reuse the
+// associated scope/element
+childScope = block.scope;
+nextNode = previousNode;
+do {
+nextNode = nextNode.nextSibling;
+} while(nextNode && nextNode[NG_REMOVED]);
+if (getBlockStart(block) != nextNode) {
+// existing item which got moved
+$animate.move(getBlockElements(block.clone), null, jqLite(previousNode));
+}
+previousNode = getBlockEnd(block);
+} else {
+// new item which we don't know about
+childScope = $scope.$new();
+}
+childScope[valueIdentifier] = value;
+if (keyIdentifier) childScope[keyIdentifier] = key;
+childScope.$index = index;
+childScope.$first = (index === 0);
+childScope.$last = (index === (arrayLength - 1));
+childScope.$middle = !(childScope.$first || childScope.$last);
+// jshint bitwise: false
+childScope.$odd = !(childScope.$even = (index&1) === 0);
+// jshint bitwise: true
+if (!block.scope) {
+$transclude(childScope, function(clone) {
+clone[clone.length++] = document.createComment(' end ngRepeat: ' + expression + ' ');
+$animate.enter(clone, null, jqLite(previousNode));
+previousNode = clone;
+block.scope = childScope;
+// Note: We only need the first/last node of the cloned nodes.
+// However, we need to keep the reference to the jqlite wrapper as it might be changed later
+// by a directive with templateUrl when it's template arrives.
+block.clone = clone;
+nextBlockMap[block.id] = block;
+});
+}
+}
+lastBlockMap = nextBlockMap;
+});
+}
+};
+function getBlockStart(block) {
+return block.clone[0];
+}
+function getBlockEnd(block) {
+return block.clone[block.clone.length - 1];
+}
+}];
+/**
+* @ngdoc directive
+* @name ngShow
+*
+* @description
+* The `ngShow` directive shows or hides the given HTML element based on the expression
+* provided to the ngShow attribute. The element is shown or hidden by removing or adding
+* the `ng-hide` CSS class onto the element. The `.ng-hide` CSS class is predefined
+* in AngularJS and sets the display style to none (using an !important flag).
+* For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).
+*
+* ```html
+* <!-- when $scope.myValue is truthy (element is visible) -->
+* <div ng-show="myValue"></div>
+*
+* <!-- when $scope.myValue is falsy (element is hidden) -->
+* <div ng-show="myValue" class="ng-hide"></div>
+* ```
+*
+* When the ngShow expression evaluates to false then the ng-hide CSS class is added to the class attribute
+* on the element causing it to become hidden. When true, the ng-hide CSS class is removed
+* from the element causing the element not to appear hidden.
+*
+* ## Why is !important used?
+*
+* You may be wondering why !important is used for the .ng-hide CSS class. This is because the `.ng-hide` selector
+* can be easily overridden by heavier selectors. For example, something as simple
+* as changing the display style on a HTML list item would make hidden elements appear visible.
+* This also becomes a bigger issue when dealing with CSS frameworks.
+*
+* By using !important, the show and hide behavior will work as expected despite any clash between CSS selector
+* specificity (when !important isn't used with any conflicting styles). If a developer chooses to override the
+* styling to change how to hide an element then it is just a matter of using !important in their own CSS code.
+*
+* ### Overriding .ng-hide
+*
+* If you wish to change the hide behavior with ngShow/ngHide then this can be achieved by
+* restating the styles for the .ng-hide class in CSS:
+* ```css
+* .ng-hide {
+*   //!annotate CSS Specificity|Not to worry, this will override the AngularJS default...
+*   display:block!important;
+*
+*   //this is just another form of hiding an element
+*   position:absolute;
+*   top:-9999px;
+*   left:-9999px;
+* }
+* ```
+*
+* Just remember to include the important flag so the CSS override will function.
+*
+* <div class="alert alert-warning">
+* **Note:** Here is a list of values that ngShow will consider as a falsy value (case insensitive):<br />
+* "f" / "0" / "false" / "no" / "n" / "[]"
+* </div>
+*
+* ## A note about animations with ngShow
+*
+* Animations in ngShow/ngHide work with the show and hide events that are triggered when the directive expression
+* is true and false. This system works like the animation system present with ngClass except that
+* you must also include the !important flag to override the display property
+* so that you can perform an animation when the element is hidden during the time of the animation.
+*
+* ```css
+* //
+* //a working example can be found at the bottom of this page
+* //
+* .my-element.ng-hide-add, .my-element.ng-hide-remove {
+*   transition:0.5s linear all;
+*   display:block!important;
+* }
+*
+* .my-element.ng-hide-add { ... }
+* .my-element.ng-hide-add.ng-hide-add-active { ... }
+* .my-element.ng-hide-remove { ... }
+* .my-element.ng-hide-remove.ng-hide-remove-active { ... }
+* ```
+*
+* @animations
+* addClass: .ng-hide - happens after the ngShow expression evaluates to a truthy value and the just before contents are set to visible
+* removeClass: .ng-hide - happens after the ngShow expression evaluates to a non truthy value and just before the contents are set to hidden
+*
+* @element ANY
+* @param {expression} ngShow If the {@link guide/expression expression} is truthy
+*     then the element is shown or hidden respectively.
+*
+* @example
+<example module="ngAnimate" deps="angular-animate.js" animations="true">
+<file name="index.html">
+Click me: <input type="checkbox" ng-model="checked"><br/>
+<div>
+Show:
+<div class="check-element animate-show" ng-show="checked">
+<span class="glyphicon glyphicon-thumbs-up"></span> I show up when your checkbox is checked.
+</div>
+</div>
+<div>
+Hide:
+<div class="check-element animate-show" ng-hide="checked">
+<span class="glyphicon glyphicon-thumbs-down"></span> I hide when your checkbox is checked.
+</div>
+</div>
+</file>
+<file name="glyphicons.css">
+@import url(//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap-glyphicons.css);
+</file>
+<file name="animations.css">
+.animate-show {
+-webkit-transition:all linear 0.5s;
+transition:all linear 0.5s;
+line-height:20px;
+opacity:1;
+padding:10px;
+border:1px solid black;
+background:white;
+}
+.animate-show.ng-hide-add,
+.animate-show.ng-hide-remove {
+display:block!important;
+}
+.animate-show.ng-hide {
+line-height:0;
+opacity:0;
+padding:0 10px;
+}
+.check-element {
+padding:10px;
+border:1px solid black;
+background:white;
+}
+</file>
+<file name="protractor.js" type="protractor">
+var thumbsUp = element(by.css('span.glyphicon-thumbs-up'));
+var thumbsDown = element(by.css('span.glyphicon-thumbs-down'));
+it('should check ng-show / ng-hide', function() {
+expect(thumbsUp.isDisplayed()).toBeFalsy();
+expect(thumbsDown.isDisplayed()).toBeTruthy();
+element(by.model('checked')).click();
+expect(thumbsUp.isDisplayed()).toBeTruthy();
+expect(thumbsDown.isDisplayed()).toBeFalsy();
+});
+</file>
+</example>
+*/
+var ngShowDirective = ['$animate', function($animate) {
+return function(scope, element, attr) {
+scope.$watch(attr.ngShow, function ngShowWatchAction(value){
+$animate[toBoolean(value) ? 'removeClass' : 'addClass'](element, 'ng-hide');
+});
+};
+}];
+/**
+* @ngdoc directive
+* @name ngHide
+*
+* @description
+* The `ngHide` directive shows or hides the given HTML element based on the expression
+* provided to the ngHide attribute. The element is shown or hidden by removing or adding
+* the `ng-hide` CSS class onto the element. The `.ng-hide` CSS class is predefined
+* in AngularJS and sets the display style to none (using an !important flag).
+* For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).
+*
+* ```hrml
+* <!-- when $scope.myValue is truthy (element is hidden) -->
+* <div ng-hide="myValue"></div>
+*
+* <!-- when $scope.myValue is falsy (element is visible) -->
+* <div ng-hide="myValue" class="ng-hide"></div>
+* ```
+*
+* When the ngHide expression evaluates to true then the .ng-hide CSS class is added to the class attribute
+* on the element causing it to become hidden. When false, the ng-hide CSS class is removed
+* from the element causing the element not to appear hidden.
+*
+* ## Why is !important used?
+*
+* You may be wondering why !important is used for the .ng-hide CSS class. This is because the `.ng-hide` selector
+* can be easily overridden by heavier selectors. For example, something as simple
+* as changing the display style on a HTML list item would make hidden elements appear visible.
+* This also becomes a bigger issue when dealing with CSS frameworks.
+*
+* By using !important, the show and hide behavior will work as expected despite any clash between CSS selector
+* specificity (when !important isn't used with any conflicting styles). If a developer chooses to override the
+* styling to change how to hide an element then it is just a matter of using !important in their own CSS code.
+*
+* ### Overriding .ng-hide
+*
+* If you wish to change the hide behavior with ngShow/ngHide then this can be achieved by
+* restating the styles for the .ng-hide class in CSS:
+* ```css
+* .ng-hide {
+*   //!annotate CSS Specificity|Not to worry, this will override the AngularJS default...
+*   display:block!important;
+*
+*   //this is just another form of hiding an element
+*   position:absolute;
+*   top:-9999px;
+*   left:-9999px;
+* }
+* ```
+*
+* Just remember to include the important flag so the CSS override will function.
+*
+* <div class="alert alert-warning">
+* **Note:** Here is a list of values that ngHide will consider as a falsy value (case insensitive):<br />
+* "f" / "0" / "false" / "no" / "n" / "[]"
+* </div>
+*
+* ## A note about animations with ngHide
+*
+* Animations in ngShow/ngHide work with the show and hide events that are triggered when the directive expression
+* is true and false. This system works like the animation system present with ngClass, except that
+* you must also include the !important flag to override the display property so
+* that you can perform an animation when the element is hidden during the time of the animation.
+*
+* ```css
+* //
+* //a working example can be found at the bottom of this page
+* //
+* .my-element.ng-hide-add, .my-element.ng-hide-remove {
+*   transition:0.5s linear all;
+*   display:block!important;
+* }
+*
+* .my-element.ng-hide-add { ... }
+* .my-element.ng-hide-add.ng-hide-add-active { ... }
+* .my-element.ng-hide-remove { ... }
+* .my-element.ng-hide-remove.ng-hide-remove-active { ... }
+* ```
+*
+* @animations
+* removeClass: .ng-hide - happens after the ngHide expression evaluates to a truthy value and just before the contents are set to hidden
+* addClass: .ng-hide - happens after the ngHide expression evaluates to a non truthy value and just before the contents are set to visible
+*
+* @element ANY
+* @param {expression} ngHide If the {@link guide/expression expression} is truthy then
+*     the element is shown or hidden respectively.
+*
+* @example
+<example module="ngAnimate" deps="angular-animate.js" animations="true">
+<file name="index.html">
+Click me: <input type="checkbox" ng-model="checked"><br/>
+<div>
+Show:
+<div class="check-element animate-hide" ng-show="checked">
+<span class="glyphicon glyphicon-thumbs-up"></span> I show up when your checkbox is checked.
+</div>
+</div>
+<div>
+Hide:
+<div class="check-element animate-hide" ng-hide="checked">
+<span class="glyphicon glyphicon-thumbs-down"></span> I hide when your checkbox is checked.
+</div>
+</div>
+</file>
+<file name="glyphicons.css">
+@import url(//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap-glyphicons.css);
+</file>
+<file name="animations.css">
+.animate-hide {
+-webkit-transition:all linear 0.5s;
+transition:all linear 0.5s;
+line-height:20px;
+opacity:1;
+padding:10px;
+border:1px solid black;
+background:white;
+}
+.animate-hide.ng-hide-add,
+.animate-hide.ng-hide-remove {
+display:block!important;
+}
+.animate-hide.ng-hide {
+line-height:0;
+opacity:0;
+padding:0 10px;
+}
+.check-element {
+padding:10px;
+border:1px solid black;
+background:white;
+}
+</file>
+<file name="protractor.js" type="protractor">
+var thumbsUp = element(by.css('span.glyphicon-thumbs-up'));
+var thumbsDown = element(by.css('span.glyphicon-thumbs-down'));
+it('should check ng-show / ng-hide', function() {
+expect(thumbsUp.isDisplayed()).toBeFalsy();
+expect(thumbsDown.isDisplayed()).toBeTruthy();
+element(by.model('checked')).click();
+expect(thumbsUp.isDisplayed()).toBeTruthy();
+expect(thumbsDown.isDisplayed()).toBeFalsy();
+});
+</file>
+</example>
+*/
+var ngHideDirective = ['$animate', function($animate) {
+return function(scope, element, attr) {
+scope.$watch(attr.ngHide, function ngHideWatchAction(value){
+$animate[toBoolean(value) ? 'addClass' : 'removeClass'](element, 'ng-hide');
+});
+};
+}];
+/**
+* @ngdoc directive
+* @name ngStyle
+* @restrict AC
+*
+* @description
+* The `ngStyle` directive allows you to set CSS style on an HTML element conditionally.
+*
+* @element ANY
+* @param {expression} ngStyle {@link guide/expression Expression} which evals to an
+*      object whose keys are CSS style names and values are corresponding values for those CSS
+*      keys.
+*
+* @example
+<example>
+<file name="index.html">
+<input type="button" value="set" ng-click="myStyle={color:'red'}">
+<input type="button" value="clear" ng-click="myStyle={}">
+<br/>
+<span ng-style="myStyle">Sample Text</span>
+<pre>myStyle={{myStyle}}</pre>
+</file>
+<file name="style.css">
+span {
+color: black;
+}
+</file>
+<file name="protractor.js" type="protractor">
+var colorSpan = element(by.css('span'));
+it('should check ng-style', function() {
+expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');
+element(by.css('input[value=set]')).click();
+expect(colorSpan.getCssValue('color')).toBe('rgba(255, 0, 0, 1)');
+element(by.css('input[value=clear]')).click();
+expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');
+});
+</file>
+</example>
+*/
+var ngStyleDirective = ngDirective(function(scope, element, attr) {
+scope.$watch(attr.ngStyle, function ngStyleWatchAction(newStyles, oldStyles) {
+if (oldStyles && (newStyles !== oldStyles)) {
+forEach(oldStyles, function(val, style) { element.css(style, '');});
+}
+if (newStyles) element.css(newStyles);
+}, true);
+});
+/**
+* @ngdoc directive
+* @name ngSwitch
+* @restrict EA
+*
+* @description
+* The `ngSwitch` directive is used to conditionally swap DOM structure on your template based on a scope expression.
+* Elements within `ngSwitch` but without `ngSwitchWhen` or `ngSwitchDefault` directives will be preserved at the location
+* as specified in the template.
+*
+* The directive itself works similar to ngInclude, however, instead of downloading template code (or loading it
+* from the template cache), `ngSwitch` simply chooses one of the nested elements and makes it visible based on which element
+* matches the value obtained from the evaluated expression. In other words, you define a container element
+* (where you place the directive), place an expression on the **`on="..."` attribute**
+* (or the **`ng-switch="..."` attribute**), define any inner elements inside of the directive and place
+* a when attribute per element. The when attribute is used to inform ngSwitch which element to display when the on
+* expression is evaluated. If a matching expression is not found via a when attribute then an element with the default
+* attribute is displayed.
+*
+* <div class="alert alert-info">
+* Be aware that the attribute values to match against cannot be expressions. They are interpreted
+* as literal string values to match against.
+* For example, **`ng-switch-when="someVal"`** will match against the string `"someVal"` not against the
+* value of the expression `$scope.someVal`.
+* </div>
+* @animations
+* enter - happens after the ngSwitch contents change and the matched child element is placed inside the container
+* leave - happens just after the ngSwitch contents change and just before the former contents are removed from the DOM
+*
+* @usage
+* <ANY ng-switch="expression">
+*   <ANY ng-switch-when="matchValue1">...</ANY>
+*   <ANY ng-switch-when="matchValue2">...</ANY>
+*   <ANY ng-switch-default>...</ANY>
+* </ANY>
+*
+*
+* @scope
+* @priority 800
+* @param {*} ngSwitch|on expression to match against <tt>ng-switch-when</tt>.
+* On child elements add:
+*
+* * `ngSwitchWhen`: the case statement to match against. If match then this
+*   case will be displayed. If the same match appears multiple times, all the
+*   elements will be displayed.
+* * `ngSwitchDefault`: the default case when no other case match. If there
+*   are multiple default cases, all of them will be displayed when no other
+*   case match.
+*
+*
+* @example
+<example module="ngAnimate" deps="angular-animate.js" animations="true">
+<file name="index.html">
+<div ng-controller="Ctrl">
+<select ng-model="selection" ng-options="item for item in items">
+</select>
+<tt>selection={{selection}}</tt>
+<hr/>
+<div class="animate-switch-container"
+ng-switch on="selection">
+<div class="animate-switch" ng-switch-when="settings">Settings Div</div>
+<div class="animate-switch" ng-switch-when="home">Home Span</div>
+<div class="animate-switch" ng-switch-default>default</div>
+</div>
+</div>
+</file>
+<file name="script.js">
+function Ctrl($scope) {
+$scope.items = ['settings', 'home', 'other'];
+$scope.selection = $scope.items[0];
+}
+</file>
+<file name="animations.css">
+.animate-switch-container {
+position:relative;
+background:white;
+border:1px solid black;
+height:40px;
+overflow:hidden;
+}
+.animate-switch {
+padding:10px;
+}
+.animate-switch.ng-animate {
+-webkit-transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;
+transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;
+position:absolute;
+top:0;
+left:0;
+right:0;
+bottom:0;
+}
+.animate-switch.ng-leave.ng-leave-active,
+.animate-switch.ng-enter {
+top:-50px;
+}
+.animate-switch.ng-leave,
+.animate-switch.ng-enter.ng-enter-active {
+top:0;
+}
+</file>
+<file name="protractor.js" type="protractor">
+var switchElem = element(by.css('[ng-switch]'));
+var select = element(by.model('selection'));
+it('should start in settings', function() {
+expect(switchElem.getText()).toMatch(/Settings Div/);
+});
+it('should change to home', function() {
+select.element.all(by.css('option')).get(1).click();
+expect(switchElem.getText()).toMatch(/Home Span/);
+});
+it('should select default', function() {
+select.element.all(by.css('option')).get(2).click();
+expect(switchElem.getText()).toMatch(/default/);
+});
+</file>
+</example>
+*/
+var ngSwitchDirective = ['$animate', function($animate) {
+return {
+restrict: 'EA',
+require: 'ngSwitch',
+// asks for $scope to fool the BC controller module
+controller: ['$scope', function ngSwitchController() {
+this.cases = {};
+}],
+link: function(scope, element, attr, ngSwitchController) {
+var watchExpr = attr.ngSwitch || attr.on,
+selectedTranscludes,
+selectedElements,
+previousElements,
+selectedScopes = [];
+scope.$watch(watchExpr, function ngSwitchWatchAction(value) {
+var i, ii = selectedScopes.length;
+if(ii > 0) {
+if(previousElements) {
+for (i = 0; i < ii; i++) {
+previousElements[i].remove();
+}
+previousElements = null;
+}
+previousElements = [];
+for (i= 0; i<ii; i++) {
+var selected = selectedElements[i];
+selectedScopes[i].$destroy();
+previousElements[i] = selected;
+$animate.leave(selected, function() {
+previousElements.splice(i, 1);
+if(previousElements.length === 0) {
+previousElements = null;
+}
+});
+}
+}
+selectedElements = [];
+selectedScopes = [];
+if ((selectedTranscludes = ngSwitchController.cases['!' + value] || ngSwitchController.cases['?'])) {
+scope.$eval(attr.change);
+forEach(selectedTranscludes, function(selectedTransclude) {
+var selectedScope = scope.$new();
+selectedScopes.push(selectedScope);
+selectedTransclude.transclude(selectedScope, function(caseElement) {
+var anchor = selectedTransclude.element;
+selectedElements.push(caseElement);
+$animate.enter(caseElement, anchor.parent(), anchor);
+});
+});
+}
+});
+}
+};
+}];
+var ngSwitchWhenDirective = ngDirective({
+transclude: 'element',
+priority: 800,
+require: '^ngSwitch',
+link: function(scope, element, attrs, ctrl, $transclude) {
+ctrl.cases['!' + attrs.ngSwitchWhen] = (ctrl.cases['!' + attrs.ngSwitchWhen] || []);
+ctrl.cases['!' + attrs.ngSwitchWhen].push({ transclude: $transclude, element: element });
+}
+});
+var ngSwitchDefaultDirective = ngDirective({
+transclude: 'element',
+priority: 800,
+require: '^ngSwitch',
+link: function(scope, element, attr, ctrl, $transclude) {
+ctrl.cases['?'] = (ctrl.cases['?'] || []);
+ctrl.cases['?'].push({ transclude: $transclude, element: element });
+}
+});
+/**
+* @ngdoc directive
+* @name ngTransclude
+* @restrict AC
+*
+* @description
+* Directive that marks the insertion point for the transcluded DOM of the nearest parent directive that uses transclusion.
+*
+* Any existing content of the element that this directive is placed on will be removed before the transcluded content is inserted.
+*
+* @element ANY
+*
+* @example
+<example module="transclude">
+<file name="index.html">
+<script>
+function Ctrl($scope) {
+$scope.title = 'Lorem Ipsum';
+$scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';
+}
+angular.module('transclude', [])
+.directive('pane', function(){
+return {
+restrict: 'E',
+transclude: true,
+scope: { title:'@' },
+template: '<div style="border: 1px solid black;">' +
+'<div style="background-color: gray">{{title}}</div>' +
+'<div ng-transclude></div>' +
+'</div>'
+};
+});
+</script>
+<div ng-controller="Ctrl">
+<input ng-model="title"><br>
+<textarea ng-model="text"></textarea> <br/>
+<pane title="{{title}}">{{text}}</pane>
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should have transcluded', function() {
+var titleElement = element(by.model('title'));
+titleElement.clear();
+titleElement.sendKeys('TITLE');
+var textElement = element(by.model('text'));
+textElement.clear();
+textElement.sendKeys('TEXT');
+expect(element(by.binding('title')).getText()).toEqual('TITLE');
+expect(element(by.binding('text')).getText()).toEqual('TEXT');
+});
+</file>
+</example>
+*
+*/
+var ngTranscludeDirective = ngDirective({
+link: function($scope, $element, $attrs, controller, $transclude) {
+if (!$transclude) {
+throw minErr('ngTransclude')('orphan',
+'Illegal use of ngTransclude directive in the template! ' +
+'No parent directive that requires a transclusion found. ' +
+'Element: {0}',
+startingTag($element));
+}
+$transclude(function(clone) {
+$element.empty();
+$element.append(clone);
+});
+}
+});
+/**
+* @ngdoc directive
+* @name script
+* @restrict E
+*
+* @description
+* Load the content of a `<script>` element into {@link ng.$templateCache `$templateCache`}, so that the
+* template can be used by {@link ng.directive:ngInclude `ngInclude`},
+* {@link ngRoute.directive:ngView `ngView`}, or {@link guide/directive directives}. The type of the
+* `<script>` element must be specified as `text/ng-template`, and a cache name for the template must be
+* assigned through the element's `id`, which can then be used as a directive's `templateUrl`.
+*
+* @param {string} type Must be set to `'text/ng-template'`.
+* @param {string} id Cache name of the template.
+*
+* @example
+<example>
+<file name="index.html">
+<script type="text/ng-template" id="/tpl.html">
+Content of the template.
+</script>
+<a ng-click="currentTpl='/tpl.html'" id="tpl-link">Load inlined template</a>
+<div id="tpl-content" ng-include src="currentTpl"></div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should load template defined inside script tag', function() {
+element(by.css('#tpl-link')).click();
+expect(element(by.css('#tpl-content')).getText()).toMatch(/Content of the template/);
+});
+</file>
+</example>
+*/
+var scriptDirective = ['$templateCache', function($templateCache) {
+return {
+restrict: 'E',
+terminal: true,
+compile: function(element, attr) {
+if (attr.type == 'text/ng-template') {
+var templateUrl = attr.id,
+// IE is not consistent, in scripts we have to read .text but in other nodes we have to read .textContent
+text = element[0].text;
+$templateCache.put(templateUrl, text);
+}
+}
+};
+}];
+var ngOptionsMinErr = minErr('ngOptions');
+/**
+* @ngdoc directive
+* @name select
+* @restrict E
+*
+* @description
+* HTML `SELECT` element with angular data-binding.
+*
+* # `ngOptions`
+*
+* The `ngOptions` attribute can be used to dynamically generate a list of `<option>`
+* elements for the `<select>` element using the array or object obtained by evaluating the
+* `ngOptions` comprehension_expression.
+*
+* When an item in the `<select>` menu is selected, the array element or object property
+* represented by the selected option will be bound to the model identified by the `ngModel`
+* directive.
+*
+* <div class="alert alert-warning">
+* **Note:** `ngModel` compares by reference, not value. This is important when binding to an
+* array of objects. See an example [in this jsfiddle](http://jsfiddle.net/qWzTb/).
+* </div>
+*
+* Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can
+* be nested into the `<select>` element. This element will then represent the `null` or "not selected"
+* option. See example below for demonstration.
+*
+* <div class="alert alert-warning">
+* **Note:** `ngOptions` provides an iterator facility for the `<option>` element which should be used instead
+* of {@link ng.directive:ngRepeat ngRepeat} when you want the
+* `select` model to be bound to a non-string value. This is because an option element can only
+* be bound to string values at present.
+* </div>
+*
+* @param {string} ngModel Assignable angular expression to data-bind to.
+* @param {string=} name Property name of the form under which the control is published.
+* @param {string=} required The control is considered valid only if value is entered.
+* @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
+*    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
+*    `required` when you want to data-bind to the `required` attribute.
+* @param {comprehension_expression=} ngOptions in one of the following forms:
+*
+*   * for array data sources:
+*     * `label` **`for`** `value` **`in`** `array`
+*     * `select` **`as`** `label` **`for`** `value` **`in`** `array`
+*     * `label`  **`group by`** `group` **`for`** `value` **`in`** `array`
+*     * `select` **`as`** `label` **`group by`** `group` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`
+*   * for object data sources:
+*     * `label` **`for (`**`key` **`,`** `value`**`) in`** `object`
+*     * `select` **`as`** `label` **`for (`**`key` **`,`** `value`**`) in`** `object`
+*     * `label` **`group by`** `group` **`for (`**`key`**`,`** `value`**`) in`** `object`
+*     * `select` **`as`** `label` **`group by`** `group`
+*         **`for` `(`**`key`**`,`** `value`**`) in`** `object`
+*
+* Where:
+*
+*   * `array` / `object`: an expression which evaluates to an array / object to iterate over.
+*   * `value`: local variable which will refer to each item in the `array` or each property value
+*      of `object` during iteration.
+*   * `key`: local variable which will refer to a property name in `object` during iteration.
+*   * `label`: The result of this expression will be the label for `<option>` element. The
+*     `expression` will most likely refer to the `value` variable (e.g. `value.propertyName`).
+*   * `select`: The result of this expression will be bound to the model of the parent `<select>`
+*      element. If not specified, `select` expression will default to `value`.
+*   * `group`: The result of this expression will be used to group options using the `<optgroup>`
+*      DOM element.
+*   * `trackexpr`: Used when working with an array of objects. The result of this expression will be
+*      used to identify the objects in the array. The `trackexpr` will most likely refer to the
+*     `value` variable (e.g. `value.propertyName`).
+*
+* @example
+<example>
+<file name="index.html">
+<script>
+function MyCntrl($scope) {
+$scope.colors = [
+{name:'black', shade:'dark'},
+{name:'white', shade:'light'},
+{name:'red', shade:'dark'},
+{name:'blue', shade:'dark'},
+{name:'yellow', shade:'light'}
+];
+$scope.color = $scope.colors[2]; // red
+}
+</script>
+<div ng-controller="MyCntrl">
+<ul>
+<li ng-repeat="color in colors">
+Name: <input ng-model="color.name">
+[<a href ng-click="colors.splice($index, 1)">X</a>]
+</li>
+<li>
+[<a href ng-click="colors.push({})">add</a>]
+</li>
+</ul>
+<hr/>
+Color (null not allowed):
+<select ng-model="color" ng-options="c.name for c in colors"></select><br>
+Color (null allowed):
+<span  class="nullable">
+<select ng-model="color" ng-options="c.name for c in colors">
+<option value="">-- choose color --</option>
+</select>
+</span><br/>
+Color grouped by shade:
+<select ng-model="color" ng-options="c.name group by c.shade for c in colors">
+</select><br/>
+Select <a href ng-click="color={name:'not in list'}">bogus</a>.<br>
+<hr/>
+Currently selected: {{ {selected_color:color}  }}
+<div style="border:solid 1px black; height:20px"
+ng-style="{'background-color':color.name}">
+</div>
+</div>
+</file>
+<file name="protractor.js" type="protractor">
+it('should check ng-options', function() {
+expect(element(by.binding('{selected_color:color}')).getText()).toMatch('red');
+element.all(by.select('color')).first().click();
+element.all(by.css('select[ng-model="color"] option')).first().click();
+expect(element(by.binding('{selected_color:color}')).getText()).toMatch('black');
+element(by.css('.nullable select[ng-model="color"]')).click();
+element.all(by.css('.nullable select[ng-model="color"] option')).first().click();
+expect(element(by.binding('{selected_color:color}')).getText()).toMatch('null');
+});
+</file>
+</example>
+*/
+var ngOptionsDirective = valueFn({ terminal: true });
+// jshint maxlen: false
+var selectDirective = ['$compile', '$parse', function($compile,   $parse) {
+//000011111111110000000000022222222220000000000000000000003333333333000000000000004444444444444440000000005555555555555550000000666666666666666000000000000000777777777700000000000000000008888888888
+var NG_OPTIONS_REGEXP = /^\s*([\s\S]+?)(?:\s+as\s+([\s\S]+?))?(?:\s+group\s+by\s+([\s\S]+?))?\s+for\s+(?:([\$\w][\$\w]*)|(?:\(\s*([\$\w][\$\w]*)\s*,\s*([\$\w][\$\w]*)\s*\)))\s+in\s+([\s\S]+?)(?:\s+track\s+by\s+([\s\S]+?))?$/,
+nullModelCtrl = {$setViewValue: noop};
+// jshint maxlen: 100
+return {
+restrict: 'E',
+require: ['select', '?ngModel'],
+controller: ['$element', '$scope', '$attrs', function($element, $scope, $attrs) {
+var self = this,
+optionsMap = {},
+ngModelCtrl = nullModelCtrl,
+nullOption,
+unknownOption;
+self.databound = $attrs.ngModel;
+self.init = function(ngModelCtrl_, nullOption_, unknownOption_) {
+ngModelCtrl = ngModelCtrl_;
+nullOption = nullOption_;
+unknownOption = unknownOption_;
+};
+self.addOption = function(value) {
+assertNotHasOwnProperty(value, '"option value"');
+optionsMap[value] = true;
+if (ngModelCtrl.$viewValue == value) {
+$element.val(value);
+if (unknownOption.parent()) unknownOption.remove();
+}
+};
+self.removeOption = function(value) {
+if (this.hasOption(value)) {
+delete optionsMap[value];
+if (ngModelCtrl.$viewValue == value) {
+this.renderUnknownOption(value);
+}
+}
+};
+self.renderUnknownOption = function(val) {
+var unknownVal = '? ' + hashKey(val) + ' ?';
+unknownOption.val(unknownVal);
+$element.prepend(unknownOption);
+$element.val(unknownVal);
+unknownOption.prop('selected', true); // needed for IE
+};
+self.hasOption = function(value) {
+return optionsMap.hasOwnProperty(value);
+};
+$scope.$on('$destroy', function() {
+// disable unknown option so that we don't do work when the whole select is being destroyed
+self.renderUnknownOption = noop;
+});
+}],
+link: function(scope, element, attr, ctrls) {
+// if ngModel is not defined, we don't need to do anything
+if (!ctrls[1]) return;
+var selectCtrl = ctrls[0],
+ngModelCtrl = ctrls[1],
+multiple = attr.multiple,
+optionsExp = attr.ngOptions,
+nullOption = false, // if false, user will not be able to select it (used by ngOptions)
+emptyOption,
+// we can't just jqLite('<option>') since jqLite is not smart enough
+// to create it in <select> and IE barfs otherwise.
+optionTemplate = jqLite(document.createElement('option')),
+optGroupTemplate =jqLite(document.createElement('optgroup')),
+unknownOption = optionTemplate.clone();
+// find "null" option
+for(var i = 0, children = element.children(), ii = children.length; i < ii; i++) {
+if (children[i].value === '') {
+emptyOption = nullOption = children.eq(i);
+break;
+}
+}
+selectCtrl.init(ngModelCtrl, nullOption, unknownOption);
+// required validator
+if (multiple) {
+ngModelCtrl.$isEmpty = function(value) {
+return !value || value.length === 0;
+};
+}
+if (optionsExp) setupAsOptions(scope, element, ngModelCtrl);
+else if (multiple) setupAsMultiple(scope, element, ngModelCtrl);
+else setupAsSingle(scope, element, ngModelCtrl, selectCtrl);
+////////////////////////////
+function setupAsSingle(scope, selectElement, ngModelCtrl, selectCtrl) {
+ngModelCtrl.$render = function() {
+var viewValue = ngModelCtrl.$viewValue;
+if (selectCtrl.hasOption(viewValue)) {
+if (unknownOption.parent()) unknownOption.remove();
+selectElement.val(viewValue);
+if (viewValue === '') emptyOption.prop('selected', true); // to make IE9 happy
+} else {
+if (isUndefined(viewValue) && emptyOption) {
+selectElement.val('');
+} else {
+selectCtrl.renderUnknownOption(viewValue);
+}
+}
+};
+selectElement.on('change', function() {
+scope.$apply(function() {
+if (unknownOption.parent()) unknownOption.remove();
+ngModelCtrl.$setViewValue(selectElement.val());
+});
+});
+}
+function setupAsMultiple(scope, selectElement, ctrl) {
+var lastView;
+ctrl.$render = function() {
+var items = new HashMap(ctrl.$viewValue);
+forEach(selectElement.find('option'), function(option) {
+option.selected = isDefined(items.get(option.value));
+});
+};
+// we have to do it on each watch since ngModel watches reference, but
+// we need to work of an array, so we need to see if anything was inserted/removed
+scope.$watch(function selectMultipleWatch() {
+if (!equals(lastView, ctrl.$viewValue)) {
+lastView = copy(ctrl.$viewValue);
+ctrl.$render();
+}
+});
+selectElement.on('change', function() {
+scope.$apply(function() {
+var array = [];
+forEach(selectElement.find('option'), function(option) {
+if (option.selected) {
+array.push(option.value);
+}
+});
+ctrl.$setViewValue(array);
+});
+});
+}
+function setupAsOptions(scope, selectElement, ctrl) {
+var match;
+if (!(match = optionsExp.match(NG_OPTIONS_REGEXP))) {
+throw ngOptionsMinErr('iexp',
+"Expected expression in form of " +
+"'_select_ (as _label_)? for (_key_,)?_value_ in _collection_'" +
+" but got '{0}'. Element: {1}",
+optionsExp, startingTag(selectElement));
+}
+var displayFn = $parse(match[2] || match[1]),
+valueName = match[4] || match[6],
+keyName = match[5],
+groupByFn = $parse(match[3] || ''),
+valueFn = $parse(match[2] ? match[1] : valueName),
+valuesFn = $parse(match[7]),
+track = match[8],
+trackFn = track ? $parse(match[8]) : null,
+// This is an array of array of existing option groups in DOM.
+// We try to reuse these if possible
+// - optionGroupsCache[0] is the options with no option group
+// - optionGroupsCache[?][0] is the parent: either the SELECT or OPTGROUP element
+optionGroupsCache = [[{element: selectElement, label:''}]];
+if (nullOption) {
+// compile the element since there might be bindings in it
+$compile(nullOption)(scope);
+// remove the class, which is added automatically because we recompile the element and it
+// becomes the compilation root
+nullOption.removeClass('ng-scope');
+// we need to remove it before calling selectElement.empty() because otherwise IE will
+// remove the label from the element. wtf?
+nullOption.remove();
+}
+// clear contents, we'll add what's needed based on the model
+selectElement.empty();
+selectElement.on('change', function() {
+scope.$apply(function() {
+var optionGroup,
+collection = valuesFn(scope) || [],
+locals = {},
+key, value, optionElement, index, groupIndex, length, groupLength, trackIndex;
+if (multiple) {
+value = [];
+for (groupIndex = 0, groupLength = optionGroupsCache.length;
+groupIndex < groupLength;
+groupIndex++) {
+// list of options for that group. (first item has the parent)
+optionGroup = optionGroupsCache[groupIndex];
+for(index = 1, length = optionGroup.length; index < length; index++) {
+if ((optionElement = optionGroup[index].element)[0].selected) {
+key = optionElement.val();
+if (keyName) locals[keyName] = key;
+if (trackFn) {
+for (trackIndex = 0; trackIndex < collection.length; trackIndex++) {
+locals[valueName] = collection[trackIndex];
+if (trackFn(scope, locals) == key) break;
+}
+} else {
+locals[valueName] = collection[key];
+}
+value.push(valueFn(scope, locals));
+}
+}
+}
+} else {
+key = selectElement.val();
+if (key == '?') {
+value = undefined;
+} else if (key === ''){
+value = null;
+} else {
+if (trackFn) {
+for (trackIndex = 0; trackIndex < collection.length; trackIndex++) {
+locals[valueName] = collection[trackIndex];
+if (trackFn(scope, locals) == key) {
+value = valueFn(scope, locals);
+break;
+}
+}
+} else {
+locals[valueName] = collection[key];
+if (keyName) locals[keyName] = key;
+value = valueFn(scope, locals);
+}
+}
+// Update the null option's selected property here so $render cleans it up correctly
+if (optionGroupsCache[0].length > 1) {
+if (optionGroupsCache[0][1].id !== key) {
+optionGroupsCache[0][1].selected = false;
+}
+}
+}
+ctrl.$setViewValue(value);
+});
+});
+ctrl.$render = render;
+// TODO(vojta): can't we optimize this ?
+scope.$watch(render);
+function render() {
+// Temporary location for the option groups before we render them
+var optionGroups = {'':[]},
+optionGroupNames = [''],
+optionGroupName,
+optionGroup,
+option,
+existingParent, existingOptions, existingOption,
+modelValue = ctrl.$modelValue,
+values = valuesFn(scope) || [],
+keys = keyName ? sortedKeys(values) : values,
+key,
+groupLength, length,
+groupIndex, index,
+locals = {},
+selected,
+selectedSet = false, // nothing is selected yet
+lastElement,
+element,
+label;
+if (multiple) {
+if (trackFn && isArray(modelValue)) {
+selectedSet = new HashMap([]);
+for (var trackIndex = 0; trackIndex < modelValue.length; trackIndex++) {
+locals[valueName] = modelValue[trackIndex];
+selectedSet.put(trackFn(scope, locals), modelValue[trackIndex]);
+}
+} else {
+selectedSet = new HashMap(modelValue);
+}
+}
+// We now build up the list of options we need (we merge later)
+for (index = 0; length = keys.length, index < length; index++) {
+key = index;
+if (keyName) {
+key = keys[index];
+if ( key.charAt(0) === '$' ) continue;
+locals[keyName] = key;
+}
+locals[valueName] = values[key];
+optionGroupName = groupByFn(scope, locals) || '';
+if (!(optionGroup = optionGroups[optionGroupName])) {
+optionGroup = optionGroups[optionGroupName] = [];
+optionGroupNames.push(optionGroupName);
+}
+if (multiple) {
+selected = isDefined(
+selectedSet.remove(trackFn ? trackFn(scope, locals) : valueFn(scope, locals))
+);
+} else {
+if (trackFn) {
+var modelCast = {};
+modelCast[valueName] = modelValue;
+selected = trackFn(scope, modelCast) === trackFn(scope, locals);
+} else {
+selected = modelValue === valueFn(scope, locals);
+}
+selectedSet = selectedSet || selected; // see if at least one item is selected
+}
+label = displayFn(scope, locals); // what will be seen by the user
+// doing displayFn(scope, locals) || '' overwrites zero values
+label = isDefined(label) ? label : '';
+optionGroup.push({
+// either the index into array or key from object
+id: trackFn ? trackFn(scope, locals) : (keyName ? keys[index] : index),
+label: label,
+selected: selected                   // determine if we should be selected
+});
+}
+if (!multiple) {
+if (nullOption || modelValue === null) {
+// insert null option if we have a placeholder, or the model is null
+optionGroups[''].unshift({id:'', label:'', selected:!selectedSet});
+} else if (!selectedSet) {
+// option could not be found, we have to insert the undefined item
+optionGroups[''].unshift({id:'?', label:'', selected:true});
+}
+}
+// Now we need to update the list of DOM nodes to match the optionGroups we computed above
+for (groupIndex = 0, groupLength = optionGroupNames.length;
+groupIndex < groupLength;
+groupIndex++) {
+// current option group name or '' if no group
+optionGroupName = optionGroupNames[groupIndex];
+// list of options for that group. (first item has the parent)
+optionGroup = optionGroups[optionGroupName];
+if (optionGroupsCache.length <= groupIndex) {
+// we need to grow the optionGroups
+existingParent = {
+element: optGroupTemplate.clone().attr('label', optionGroupName),
+label: optionGroup.label
+};
+existingOptions = [existingParent];
+optionGroupsCache.push(existingOptions);
+selectElement.append(existingParent.element);
+} else {
+existingOptions = optionGroupsCache[groupIndex];
+existingParent = existingOptions[0];  // either SELECT (no group) or OPTGROUP element
+// update the OPTGROUP label if not the same.
+if (existingParent.label != optionGroupName) {
+existingParent.element.attr('label', existingParent.label = optionGroupName);
+}
+}
+lastElement = null;  // start at the beginning
+for(index = 0, length = optionGroup.length; index < length; index++) {
+option = optionGroup[index];
+if ((existingOption = existingOptions[index+1])) {
+// reuse elements
+lastElement = existingOption.element;
+if (existingOption.label !== option.label) {
+lastElement.text(existingOption.label = option.label);
+}
+if (existingOption.id !== option.id) {
+lastElement.val(existingOption.id = option.id);
+}
+// lastElement.prop('selected') provided by jQuery has side-effects
+if (existingOption.selected !== option.selected) {
+lastElement.prop('selected', (existingOption.selected = option.selected));
+}
+} else {
+// grow elements
+// if it's a null option
+if (option.id === '' && nullOption) {
+// put back the pre-compiled element
+element = nullOption;
+} else {
+// jQuery(v1.4.2) Bug: We should be able to chain the method calls, but
+// in this version of jQuery on some browser the .text() returns a string
+// rather then the element.
+(element = optionTemplate.clone())
+.val(option.id)
+.attr('selected', option.selected)
+.text(option.label);
+}
+existingOptions.push(existingOption = {
+element: element,
+label: option.label,
+id: option.id,
+selected: option.selected
+});
+if (lastElement) {
+lastElement.after(element);
+} else {
+existingParent.element.append(element);
+}
+lastElement = element;
+}
+}
+// remove any excessive OPTIONs in a group
+index++; // increment since the existingOptions[0] is parent element not OPTION
+while(existingOptions.length > index) {
+existingOptions.pop().element.remove();
+}
+}
+// remove any excessive OPTGROUPs from select
+while(optionGroupsCache.length > groupIndex) {
+optionGroupsCache.pop()[0].element.remove();
+}
+}
+}
+}
+};
+}];
+var optionDirective = ['$interpolate', function($interpolate) {
+var nullSelectCtrl = {
+addOption: noop,
+removeOption: noop
+};
+return {
+restrict: 'E',
+priority: 100,
+compile: function(element, attr) {
+if (isUndefined(attr.value)) {
+var interpolateFn = $interpolate(element.text(), true);
+if (!interpolateFn) {
+attr.$set('value', element.text());
+}
+}
+return function (scope, element, attr) {
+var selectCtrlName = '$selectController',
+parent = element.parent(),
+selectCtrl = parent.data(selectCtrlName) ||
+parent.parent().data(selectCtrlName); // in case we are in optgroup
+if (selectCtrl && selectCtrl.databound) {
+// For some reason Opera defaults to true and if not overridden this messes up the repeater.
+// We don't want the view to drive the initialization of the model anyway.
+element.prop('selected', false);
+} else {
+selectCtrl = nullSelectCtrl;
+}
+if (interpolateFn) {
+scope.$watch(interpolateFn, function interpolateWatchAction(newVal, oldVal) {
+attr.$set('value', newVal);
+if (newVal !== oldVal) selectCtrl.removeOption(oldVal);
+selectCtrl.addOption(newVal);
+});
+} else {
+selectCtrl.addOption(attr.value);
+}
+element.on('$destroy', function() {
+selectCtrl.removeOption(attr.value);
+});
+};
+}
+};
+}];
+var styleDirective = valueFn({
+restrict: 'E',
+terminal: true
+});
+if (window.angular.bootstrap) {
+//AngularJS is already loaded, so we can return here...
+console.log('WARNING: Tried to load angular more than once.');
+return;
+}
+//try to bind to jquery now so that one can write angular.element().read()
+//but we will rebind on bootstrap again.
+bindJQuery();
+publishExternalAPI(angular);
+jqLite(document).ready(function() {
+angularInit(document, bootstrap);
+});
+})(window, document);
+!angular.$$csp() && angular.element(document).find('head').prepend('<style type="text/css">@charset "UTF-8";[ng\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide{display:none !important;}ng\\:form{display:block;}.ng-animate-block-transitions{transition:0s all!important;-webkit-transition:0s all!important;}</style>');

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