1. 程式人生 > >jQuery v2.2.5的原始碼

jQuery v2.2.5的原始碼

/*!
 * jQuery JavaScript Library v2.2.5-pre b14ce54334a568eaaa107be4c441660a57c3db24
 * http://jquery.com/
 *
 * Includes Sizzle.js
 * http://sizzlejs.com/
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2016-06-22T11:40Z
 */

(function (global, factory) {

        if (typeof module === "object" && typeof module.exports === "object") {
                // For CommonJS and CommonJS-like environments where a proper `window`
                // is present, execute the factory and get jQuery.
                // For environments that do not have a `window` with a `document`
                // (such as Node.js), expose a factory as module.exports.
                // This accentuates the need for the creation of a real `window`.
                // e.g. var jQuery = require("jquery")(window);
                // See ticket #14549 for more info.
                module.exports = global.document ?
                        factory(global, true) :
                        function (w) {
                                if (!w.document) {
                                        throw new Error("jQuery requires a window with a document");
                                }
                                return factory(w);
                        };
        } else {
                factory(global);
        }

// Pass this if window is not defined yet
}(typeof window !== "undefined" ? window : this, function (window, noGlobal) {

// Support: Firefox 18+
// Can't be in strict mode, several libs including ASP.NET trace
// the stack via arguments.caller.callee and Firefox dies if
// you try to trace through "use strict" call chains. (#13335)
//"use strict";
        var arr = [];

        var document = window.document;

        var slice = arr.slice;

        var concat = arr.concat;

        var push = arr.push;

        var indexOf = arr.indexOf;

        var class2type = {};

        var toString = class2type.toString;

        var hasOwn = class2type.hasOwnProperty;

        var support = {};


        var
                version = "2.2.5-pre b14ce54334a568eaaa107be4c441660a57c3db24",

                // Define a local copy of jQuery
                jQuery = function (selector, context) {

                        // The jQuery object is actually just the init constructor 'enhanced'
                        // Need init if jQuery is called (just allow error to be thrown if not included)
                        return new jQuery.fn.init(selector, context);
                },

                // Support: Android<4.1
                // Make sure we trim BOM and NBSP
                rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,

                // Matches dashed string for camelizing
                rmsPrefix = /^-ms-/,
                rdashAlpha = /-([\da-z])/gi,

                // Used by jQuery.camelCase as callback to replace()
                fcamelCase = function (all, letter) {
                        return letter.toUpperCase();
                };

        jQuery.fn = jQuery.prototype = {

                // The current version of jQuery being used
                jquery: version,

                constructor: jQuery,

                // Start with an empty selector
                selector: "",

                // The default length of a jQuery object is 0
                length: 0,

                toArray: function () {
                        return slice.call(this);
                },

                // Get the Nth element in the matched element set OR
                // Get the whole matched element set as a clean array
                get: function (num) {
                        return num != null ?

                                // Return just the one element from the set
                                ( num < 0 ? this[num + this.length] : this[num] ) :

                                // Return all the elements in a clean array
                                slice.call(this);
                },

                // Take an array of elements and push it onto the stack
                // (returning the new matched element set)
                pushStack: function (elems) {

                        // Build a new jQuery matched element set
                        var ret = jQuery.merge(this.constructor(), elems);

                        // Add the old object onto the stack (as a reference)
                        ret.prevObject = this;
                        ret.context = this.context;

                        // Return the newly-formed element set
                        return ret;
                },

                // Execute a callback for every element in the matched set.
                each: function (callback) {
                        return jQuery.each(this, callback);
                },

                map: function (callback) {
                        return this.pushStack(jQuery.map(this, function (elem, i) {
                                return callback.call(elem, i, elem);
                        }));
                },

                slice: function () {
                        return this.pushStack(slice.apply(this, arguments));
                },

                first: function () {
                        return this.eq(0);
                },

                last: function () {
                        return this.eq(-1);
                },

                eq: function (i) {
                        var len = this.length,
                                j = +i + ( i < 0 ? len : 0 );
                        return this.pushStack(j >= 0 && j < len ? [this[j]] : []);
                },

                end: function () {
                        return this.prevObject || this.constructor();
                },

                // For internal use only.
                // Behaves like an Array's method, not like a jQuery method.
                push: push,
                sort: arr.sort,
                splice: arr.splice
        };

        jQuery.extend = jQuery.fn.extend = function () {
                var options, name, src, copy, copyIsArray, clone,
                        target = arguments[0] || {},
                        i = 1,
                        length = arguments.length,
                        deep = false;

                // Handle a deep copy situation
                if (typeof target === "boolean") {
                        deep = target;

                        // Skip the boolean and the target
                        target = arguments[i] || {};
                        i++;
                }

                // Handle case when target is a string or something (possible in deep copy)
                if (typeof target !== "object" && !jQuery.isFunction(target)) {
                        target = {};
                }

                // Extend jQuery itself if only one argument is passed
                if (i === length) {
                        target = this;
                        i--;
                }

                for (; i < length; i++) {

                        // Only deal with non-null/undefined values
                        if (( options = arguments[i] ) != null) {

                                // Extend the base object
                                for (name in options) {
                                        src = target[name];
                                        copy = options[name];

                                        // Prevent never-ending loop
                                        if (target === copy) {
                                                continue;
                                        }

                                        // Recurse if we're merging plain objects or arrays
                                        if (deep && copy && ( jQuery.isPlainObject(copy) ||
                                                        ( copyIsArray = jQuery.isArray(copy) ) )) {

                                                if (copyIsArray) {
                                                        copyIsArray = false;
                                                        clone = src && jQuery.isArray(src) ? src : [];

                                                } else {
                                                        clone = src && jQuery.isPlainObject(src) ? src : {};
                                                }

                                                // Never move original objects, clone them
                                                target[name] = jQuery.extend(deep, clone, copy);

                                                // Don't bring in undefined values
                                        } else if (copy !== undefined) {
                                                target[name] = copy;
                                        }
                                }
                        }
                }

                // Return the modified object
                return target;
        };

        jQuery.extend({

                // Unique for each copy of jQuery on the page
                expando: "jQuery" + ( version + Math.random() ).replace(/\D/g, ""),

                // Assume jQuery is ready without the ready module
                isReady: true,

                error: function (msg) {
                        throw new Error(msg);
                },

                noop: function () {
                },

                isFunction: function (obj) {
                        return jQuery.type(obj) === "function";
                },

                isArray: Array.isArray,

                isWindow: function (obj) {
                        return obj != null && obj === obj.window;
                },

                isNumeric: function (obj) {

                        // parseFloat NaNs numeric-cast false positives (null|true|false|"")
                        // ...but misinterprets leading-number strings, particularly hex literals ("0x...")
                        // subtraction forces infinities to NaN
                        // adding 1 corrects loss of precision from parseFloat (#15100)
                        var realStringObj = obj && obj.toString();
                        return !jQuery.isArray(obj) && ( realStringObj - parseFloat(realStringObj) + 1 ) >= 0;
                },

                isPlainObject: function (obj) {
                        var key;

                        // Not plain objects:
                        // - Any object or value whose internal [[Class]] property is not "[object Object]"
                        // - DOM nodes
                        // - window
                        if (jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow(obj)) {
                                return false;
                        }

                        // Not own constructor property must be Object
                        if (obj.constructor &&
                                !hasOwn.call(obj, "constructor") &&
                                !hasOwn.call(obj.constructor.prototype || {}, "isPrototypeOf")) {
                                return false;
                        }

                        // Own properties are enumerated firstly, so to speed up,
                        // if last one is own, then all properties are own
                        for (key in obj) {
                        }

                        return key === undefined || hasOwn.call(obj, key);
                },

                isEmptyObject: function (obj) {
                        var name;
                        for (name in obj) {
                                return false;
                        }
                        return true;
                },

                type: function (obj) {
                        if (obj == null) {
                                return obj + "";
                        }

                        // Support: Android<4.0, iOS<6 (functionish RegExp)
                        return typeof obj === "object" || typeof obj === "function" ?
                                class2type[toString.call(obj)] || "object" :
                                typeof obj;
                },

                // Evaluates a script in a global context
                globalEval: function (code) {
                        var script,
                                indirect = eval;

                        code = jQuery.trim(code);

                        if (code) {

                                // If the code includes a valid, prologue position
                                // strict mode pragma, execute code by injecting a
                                // script tag into the document.
                                if (code.indexOf("use strict") === 1) {
                                        script = document.createElement("script");
                                        script.text = code;
                                        document.head.appendChild(script).parentNode.removeChild(script);
                                } else {

                                        // Otherwise, avoid the DOM node creation, insertion
                                        // and removal by using an indirect global eval

                                        indirect(code);
                                }
                        }
                },

                // Convert dashed to camelCase; used by the css and data modules
                // Support: IE9-11+
                // Microsoft forgot to hump their vendor prefix (#9572)
                camelCase: function (string) {
                        return string.replace(rmsPrefix, "ms-").replace(rdashAlpha, fcamelCase);
                },

                nodeName: function (elem, name) {
                        return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
                },

                each: function (obj, callback) {
                        var length, i = 0;

                        if (isArrayLike(obj)) {
                                length = obj.length;
                                for (; i < length; i++) {
                                        if (callback.call(obj[i], i, obj[i]) === false) {
                                                break;
                                        }
                                }
                        } else {
                                for (i in obj) {
                                        if (callback.call(obj[i], i, obj[i]) === false) {
                                                break;
                                        }
                                }
                        }

                        return obj;
                },

                // Support: Android<4.1
                trim: function (text) {
                        return text == null ?
                                "" :
                                ( text + "" ).replace(rtrim, "");
                },

                // results is for internal usage only
                makeArray: function (arr, results) {
                        var ret = results || [];

                        if (arr != null) {
                                if (isArrayLike(Object(arr))) {
                                        jQuery.merge(ret,
                                                typeof arr === "string" ?
                                                        [arr] : arr
                                        );
                                } else {
                                        push.call(ret, arr);
                                }
                        }

                        return ret;
                },

                inArray: function (elem, arr, i) {
                        return arr == null ? -1 : indexOf.call(arr, elem, i);
                },

                merge: function (first, second) {
                        var len = +second.length,
                                j = 0,
                                i = first.length;

                        for (; j < len; j++) {
                                first[i++] = second[j];
                        }

                        first.length = i;

                        return first;
                },

                grep: function (elems, callback, invert) {
                        var callbackInverse,
                                matches = [],
                                i = 0,
                                length = elems.length,
                                callbackExpect = !invert;

                        // Go through the array, only saving the items
                        // that pass the validator function
                        for (; i < length; i++) {
                                callbackInverse = !callback(elems[i], i);
                                if (callbackInverse !== callbackExpect) {
                                        matches.push(elems[i]);
                                }
                        }

                        return matches;
                },

                // arg is for internal usage only
                map: function (elems, callback, arg) {
                        var length, value,
                                i = 0,
                                ret = [];

                        // Go through the array, translating each of the items to their new values
                        if (isArrayLike(elems)) {
                                length = elems.length;
                                for (; i < length; i++) {
                                        value = callback(elems[i], i, arg);

                                        if (value != null) {
                                                ret.push(value);
                                        }
                                }

                                // Go through every key on the object,
                        } else {
                                for (i in elems) {
                                        value = callback(elems[i], i, arg);

                                        if (value != null) {
                                                ret.push(value);
                                        }
                                }
                        }

                        // Flatten any nested arrays
                        return concat.apply([], ret);
                },

                // A global GUID counter for objects
                guid: 1,

                // Bind a function to a context, optionally partially applying any
                // arguments.
                proxy: function (fn, context) {
                        var tmp, args, proxy;

                        if (typeof context === "string") {
                                tmp = fn[context];
                                context = fn;
                                fn = tmp;
                        }

                        // Quick check to determine if target is callable, in the spec
                        // this throws a TypeError, but we will just return undefined.
                        if (!jQuery.isFunction(fn)) {
                                return undefined;
                        }

                        // Simulated bind
                        args = slice.call(arguments, 2);
                        proxy = function () {
                                return fn.apply(context || this, args.concat(slice.call(arguments)));
                        };

                        // Set the guid of unique handler to the same of original handler, so it can be removed
                        proxy.guid = fn.guid = fn.guid || jQuery.guid++;

                        return proxy;
                },

                now: Date.now,

                // jQuery.support is not used in Core but other projects attach their
                // properties to it so it needs to exist.
                support: support
        });

// JSHint would error on this code due to the Symbol not being defined in ES5.
// Defining this global in .jshintrc would create a danger of using the global
// unguarded in another place, it seems safer to just disable JSHint for these
// three lines.
        /* jshint ignore: start */
        if (typeof Symbol === "function") {
                jQuery.fn[Symbol.iterator] = arr[Symbol.iterator];
        }
        /* jshint ignore: end */

// Populate the class2type map
        jQuery.each("Boolean Number String Function Array Date RegExp Object Error Symbol".split(" "),
                function (i, name) {
                        class2type["[object " + name + "]"] = name.toLowerCase();
                });

        function isArrayLike(obj) {

                // Support: iOS 8.2 (not reproducible in simulator)
                // `in` check used to prevent JIT error (gh-2145)
                // hasOwn isn't used here due to false negatives
                // regarding Nodelist length in IE
                var length = !!obj && "length" in obj && obj.length,
                        type = jQuery.type(obj);

                if (type === "function" || jQuery.isWindow(obj)) {
                        return false;
                }

                return type === "array" || length === 0 ||
                        typeof length === "number" && length > 0 && ( length - 1 ) in obj;
        }

        var Sizzle =
                /*!
 * Sizzle CSS Selector Engine v2.2.1
 * http://sizzlejs.com/
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2015-10-17
 */
                (function (window) {

                        var i,
                                support,
                                Expr,
                                getText,
                                isXML,
                                tokenize,
                                compile,
                                select,
                                outermostContext,
                                sortInput,
                                hasDuplicate,

                                // Local document vars
                                setDocument,
                                document,
                                docElem,
                                documentIsHTML,
                                rbuggyQSA,
                                rbuggyMatches,
                                matches,
                                contains,

                                // Instance-specific data
                                expando = "sizzle" + 1 * new Date(),
                                preferredDoc = window.document,
                                dirruns = 0,
                                done = 0,
                                classCache = createCache(),
                                tokenCache = createCache(),
                                compilerCache = createCache(),
                                sortOrder = function (a, b) {
                                        if (a === b) {
                                                hasDuplicate = true;
                                        }
                                        return 0;
                                },

                                // General-purpose constants
                                MAX_NEGATIVE = 1 << 31,

                                // Instance methods
                                hasOwn = ({}).hasOwnProperty,
                                arr = [],
                                pop = arr.pop,
                                push_native = arr.push,
                                push = arr.push,
                                slice = arr.slice,
                                // Use a stripped-down indexOf as it's faster than native
                                // http://jsperf.com/thor-indexof-vs-for/5
                                indexOf = function (list, elem) {
                                        var i = 0,
                                                len = list.length;
                                        for (; i < len; i++) {
                                                if (list[i] === elem) {
                                                        return i;
                                                }
                                        }
                                        return -1;
                                },

                                booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",

                                // Regular expressions

                                // http://www.w3.org/TR/css3-selectors/#whitespace
                                whitespace = "[\\x20\\t\\r\\n\\f]",

                                // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
                                identifier = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",

                                // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
                                attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
                                        // Operator (capture 2)
                                        "*([*^$|!~]?=)" + whitespace +
                                        // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
                                        "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
                                        "*\\]",

                                pseudos = ":(" + identifier + ")(?:\\((" +
                                        // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
                                        // 1. quoted (capture 3; capture 4 or capture 5)
                                        "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
                                        // 2. simple (capture 6)
                                        "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
                                        // 3. anything else (capture 2)
                                        ".*" +
                                        ")\\)|)",

                                // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
                                rwhitespace = new RegExp(whitespace + "+", "g"),
                                rtrim = new RegExp("^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g"),

                                rcomma = new RegExp("^" + whitespace + "*," + whitespace + "*"),
                                rcombinators = new RegExp("^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*"),

                                rattributeQuotes = new RegExp("=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g"),

                                rpseudo = new RegExp(pseudos),
                                ridentifier = new RegExp("^" + identifier + "$"),

                                matchExpr = {
                                        "ID": new RegExp("^#(" + identifier + ")"),
                                        "CLASS": new RegExp("^\\.(" + identifier + ")"),
                                        "TAG": new RegExp("^(" + identifier + "|[*])"),
                                        "ATTR": new RegExp("^" + attributes),
                                        "PSEUDO": new RegExp("^" + pseudos),
                                        "CHILD": new RegExp("^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
                                                "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
                                                "*(\\d+)|))" + whitespace + "*\\)|)", "i"),
                                        "bool": new RegExp("^(?:" + booleans + ")$", "i"),
                                        // For use in libraries implementing .is()
                                        // We use this for POS matching in `select`
                                        "needsContext": new RegExp("^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
                                                whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i")
                                },

                                rinputs = /^(?:input|select|textarea|button)$/i,
                                rheader = /^h\d$/i,

                                rnative = /^[^{]+\{\s*\[native \w/,

                                // Easily-parseable/retrievable ID or TAG or CLASS selectors
                                rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

                                rsibling = /[+~]/,
                                rescape = /'|\\/g,

                                // CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
                                runescape = new RegExp("\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig"),
                                funescape = function (_, escaped, escapedWhitespace) {
                                        var high = "0x" + escaped - 0x10000;
                                        // NaN means non-codepoint
                                        // Support: Firefox<24
                                        // Workaround erroneous numeric interpretation of +"0x"
                                        return high !== high || escapedWhitespace ?
                                                escaped :
                                                high < 0 ?
                                                        // BMP codepoint
                                                        String.fromCharCode(high + 0x10000) :
                                                        // Supplemental Plane codepoint (surrogate pair)
                                                        String.fromCharCode(high >> 10 | 0xD800, high & 0x3FF | 0xDC00);
                                },

                                // Used for iframes
                                // See setDocument()
                                // Removing the function wrapper causes a "Permission Denied"
                                // error in IE
                                unloadHandler = function () {
                                        setDocument();
                                };

// Optimize for push.apply( _, NodeList )
                        try {
                                push.apply(
                                        (arr = slice.call(preferredDoc.childNodes)),
                                        preferredDoc.childNodes
                                );
                                // Support: Android<4.0
                                // Detect silently failing push.apply
                                arr[preferredDoc.childNodes.length].nodeType;
                        } catch (e) {
                                push = {
                                        apply: arr.length ?

                                                // Leverage slice if possible
                                                function (target, els) {
                                                        push_native.apply(target, slice.call(els));
                                                } :

                                                // Support: IE<9
                                                // Otherwise append directly
                                                function (target, els) {
                                                        var j = target.length,
                                                                i = 0;
                                                        // Can't trust NodeList.length
                                                        while ((target[j++] = els[i++])) {
                                                        }
                                                        target.length = j - 1;
                                                }
                                };
                        }

                        function Sizzle(selector, context, results, seed) {
                                var m, i, elem, nid, nidselect, match, groups, newSelector,
                                        newContext = context && context.ownerDocument,

                                        // nodeType defaults to 9, since context defaults to document
                                        nodeType = context ? context.nodeType : 9;

                                results = results || [];

                                // Return early from calls with invalid selector or context
                                if (typeof selector !== "string" || !selector ||
                                        nodeType !== 1 && nodeType !== 9 && nodeType !== 11) {

                                        return results;
                                }

                                // Try to shortcut find operations (as opposed to filters) in HTML documents
                                if (!seed) {

                                        if (( context ? context.ownerDocument || context : preferredDoc ) !== document) {
                                                setDocument(context);
                                        }
                                        context = context || document;

                                        if (documentIsHTML) {

                                                // If the selector is sufficiently simple, try using a "get*By*" DOM method
                                                // (excepting DocumentFragment context, where the methods don't exist)
                                                if (nodeType !== 11 && (match = rquickExpr.exec(selector))) {

                                                        // ID selector
                                                        if ((m = match[1])) {

                                                                // Document context
                                                                if (nodeType === 9) {
                                                                        if ((elem = context.getElementById(m))) {

                                                                                // Support: IE, Opera, Webkit
                                                                                // TODO: identify versions
                                                                                // getElementById can match elements by name instead of ID
                                                                                if (elem.id === m) {
                                                                                        results.push(elem);
                                                                                        return results;
                                                                                }
                                                                        } else {
                                                                                return results;
                                                                        }

                                                                        // Element context
                                                                } else {

                                                                        // Support: IE, Opera, Webkit
                                                                        // TODO: identify versions
                                                                        // getElementById can match elements by name instead of ID
                                                                        if (newContext && (elem = newContext.getElementById(m)) &&
                                                                                contains(context, elem) &&
                                                                                elem.id === m) {

                                                                                results.push(elem);
                                                                                return results;
                                                                        }
                                                                }

                                                                // Type selector
                                                        } else if (match[2]) {
                                                                push.apply(results, context.getElementsByTagName(selector));
                                                                return results;

                                                                // Class selector
                                                        } else if ((m = match[3]) && support.getElementsByClassName &&
                                                                context.getElementsByClassName) {

                                                                push.apply(results, context.getElementsByClassName(m));
                                                                return results;
                                                        }
                                                }

                                                // Take advantage of querySelectorAll
                                                if (support.qsa &&
                                                        !compilerCache[selector + " "] &&
                                                        (!rbuggyQSA || !rbuggyQSA.test(selector))) {

                                                        if (nodeType !== 1) {
                                                                newContext = context;
                                                                newSelector = selector;

                                                                // qSA looks outside Element context, which is not what we want
                                                                // Thanks to Andrew Dupont for this workaround technique
                                                                // Support: IE <=8
                                                                // Exclude object elements
                                                        } else if (context.nodeName.toLowerCase() !== "object") {

                                                                // Capture the context ID, setting it first if necessary
                                                                if ((nid = context.getAttribute("id"))) {
                                                                        nid = nid.replace(rescape, "\\$&");
                                                                } else {
                                                                        context.setAttribute("id", (nid = expando));
                                                                }

                                                                // Prefix every selector in the list
                                                                groups = tokenize(selector);
                                                                i = groups.length;
                                                                nidselect = ridentifier.test(nid) ? "#" + nid : "[id='" + nid + "']";
                                                                while (i--) {
                                                                        groups[i] = nidselect + " " + toSelector(groups[i]);
                                                                }
                                                                newSelector = groups.join(",");

                                                                // Expand context for sibling selectors
                                                                newContext = rsibling.test(selector) && testContext(context.parentNode) ||
                                                                        context;
                                                        }

                                                        if (newSelector) {
                                                                try {
                                                                        push.apply(results,
                                                                                newContext.querySelectorAll(newSelector)
                                                                        );
                                                                        return results;
                                                                } catch (qsaError) {
                                                                } finally {
                                                                        if (nid === expando) {
                                                                                context.removeAttribute("id");
                                                                        }
                                                                }
                                                        }
                                                }
                                        }
                                }

                                // All others
                                return select(selector.replace(rtrim, "$1"), context, results, seed);
                        }

                        /**
                         * Create key-value caches of limited size
                         * @returns {function(string, object)} Returns the Object data after storing it on itself with
                         *        property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
                         *        deleting the oldest entry
                         */
                        function createCache() {
                                var keys = [];

                                function cache(key, value) {
                                        // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
                                        if (keys.push(key + " ") > Expr.cacheLength) {
                                                // Only keep the most recent entries
                                                delete cache[keys.shift()];
                                        }
                                        return (cache[key + " "] = value);
                                }

                                return cache;
                        }

                        /**
                         * Mark a function for special use by Sizzle
                         * @param {Function} fn The function to mark
                         */
                        function markFunction(fn) {
                                fn[expando] = true;
                                return fn;
                        }

                        /**
                         * Support testing using an element
                         * @param {Function} fn Passed the created div and expects a boolean result
                         */
                        function assert(fn) {
                                var div = document.createElement("div");

                                try {
                                        return !!fn(div);
                                } catch (e) {
                                        return false;
                                } finally {
                                        // Remove from its parent by default
                                        if (div.parentNode) {
                                                div.parentNode.removeChild(div);
                                        }
                                        // release memory in IE
                                        div = null;
                                }
                        }

                        /**
                         * Adds the same handler for all of the specified attrs
                         * @param {String} attrs Pipe-separated list of attributes
                         * @param {Function} handler The method that will be applied
                         */
                        function addHandle(attrs, handler) {
                                var arr = attrs.split("|"),
                                        i = arr.length;

                                while (i--) {
                                        Expr.attrHandle[arr[i]] = handler;
                                }
                        }

                        /**
                         * Checks document order of two siblings
                         * @param {Element} a
                         * @param {Element} b
                         * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
                         */
                        function siblingCheck(a, b) {
                                var cur = b && a,
                                        diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
                                                ( ~b.sourceIndex || MAX_NEGATIVE ) -
                                                ( ~a.sourceIndex || MAX_NEGATIVE );

                                // Use IE sourceIndex if available on both nodes
                                if (diff) {
                                        return diff;
                                }

                                // Check if b follows a
                                if (cur) {
                                        while ((cur = cur.nextSibling)) {
                                                if (cur === b) {
                                                        return -1;
                                                }
                                        }
                                }

                                return a ? 1 : -1;
                        }

                        /**
                         * Returns a function to use in pseudos for input types
                         * @param {String} type
                         */
                        function createInputPseudo(type) {
                                return function (elem) {
                                        var name = elem.nodeName.toLowerCase();
                                        return name === "input" && elem.type === type;
                                };
                        }

                        /**
                         * Returns a function to use in pseudos for buttons
                         * @param {String} type
                         */
                        function createButtonPseudo(type) {
                                return function (elem) {
                                        var name = elem.nodeName.toLowerCase();
                                        return (name === "input" || name === "button") && elem.type === type;
                                };
                        }

                        /**
                         * Returns a function to use in pseudos for positionals
                         * @param {Function} fn
                         */
                        function createPositionalPseudo(fn) {
                                return markFunction(function (argument) {
                                        argument = +argument;
                                        return markFunction(function (seed, matches) {
                                                var j,
                                                        matchIndexes = fn([], seed.length, argument),
                                                        i = matchIndexes.length;

                                                // Match elements found at the specified indexes
                                                while (i--) {
                                                        if (seed[(j = matchIndexes[i])]) {
                                                                seed[j] = !(matches[j] = seed[j]);
                                                        }
                                                }
                                        });
                                });
                        }

                        /**
                         * Checks a node for validity as a Sizzle context
                         * @param {Element|Object=} context
                         * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
                         */
                        function testContext(context) {
                                return context && typeof context.getElementsByTagName !== "undefined" && context;
                        }

// Expose support vars for convenience
                        support = Sizzle.support = {};

                        /**
                         * Detects XML nodes
                         * @param {Element|Object} elem An element or a document
                         * @returns {Boolean} True iff elem is a non-HTML XML node
                         */
                        isXML = Sizzle.isXML = function (elem) {
                                // documentElement is verified for cases where it doesn't yet exist
                                // (such as loading iframes in IE - #4833)
                                var documentElement = elem && (elem.ownerDocument || elem).documentElement;
                                return documentElement ? documentElement.nodeName !== "HTML" : false;
                        };

                        /**
                         * Sets document-related variables once based on the current document
                         * @param {Element|Object} [doc] An element or document object to use to set the document
                         * @returns {Object} Returns the current document
                         */
                        setDocument = Sizzle.setDocument = function (node) {
                                var hasCompare, parent,
                                        doc = node ? node.ownerDocument || node : preferredDoc;

                                // Return early if doc is invalid or already selected
                                if (doc === document || doc.nodeType !== 9 || !doc.documentElement) {
                                        return document;
                                }

                                // Update global variables
                                document = doc;
                                docElem = document.documentElement;
                                documentIsHTML = !isXML(document);

                                // Support: IE 9-11, Edge
                                // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
                                if ((parent = document.defaultView) && parent.top !== parent) {
                                        // Support: IE 11
                                        if (parent.addEventListener) {
                                                parent.addEventListener("unload", unloadHandler, false);

                                                // Support: IE 9 - 10 only
                                        } else if (parent.attachEvent) {
                                                parent.attachEvent("onunload", unloadHandler);
                                        }
                                }

                                /* Attributes
       ---------------------------------------------------------------------- */

                                // Support: IE<8
                                // Verify that getAttribute really returns attributes and not properties
                                // (excepting IE8 booleans)
                                support.attributes = assert(function (div) {
                                        div.className = "i";
                                        return !div.getAttribute("className");
                                });

                                /* getElement(s)By*
       ---------------------------------------------------------------------- */

                                // Check if getElementsByTagName("*") returns only elements
                                support.getElementsByTagName = assert(function (div) {
                                        div.appendChild(document.createComment(""));
                                        return !div.getElementsByTagName("*").length;
                                });

                                // Support: IE<9
                                support.getElementsByClassName = rnative.test(document.getElementsByClassName);

                                // Support: IE<10
                                // Check if getElementById returns elements by name
                                // The broken getElementById methods don't pick up programatically-set names,
                                // so use a roundabout getElementsByName test
                                support.getById = assert(function (div) {
                                        docElem.appendChild(div).id = expando;
                                        return !document.getElementsByName || !document.getElementsByName(expando).length;
                                });

                                // ID find and filter
                                if (support.getById) {
                                        Expr.find["ID"] = function (id, context) {
                                                if (typeof context.getElementById !== "undefined" && documentIsHTML) {
                                                        var m = context.getElementById(id);
                                                        return m ? [m] : [];
                                                }
                                        };
                                        Expr.filter["ID"] = function (id) {
                                                var attrId = id.replace(runescape, funescape);
                                                return function (elem) {
                                                        return elem.getAttribute("id") === attrId;
                                                };
                                        };
                                } else {
                                        // Support: IE6/7
                                        // getElementById is not reliable as a find shortcut
                                        delete Expr.find["ID"];

                                        Expr.filter["ID"] = function (id) {
                                                var attrId = id.replace(runescape, funescape);
                                                return function (elem) {
                                                        var node = typeof elem.getAttributeNode !== "undefined" &&
                                                                elem.getAttributeNode("id");
                                                        return node && node.value === attrId;
                                                };
                                        };
                                }

                                // Tag
                                Expr.find["TAG"] = support.getElementsByTagName ?
                                        function (tag, context) {
                                                if (typeof context.getElementsByTagName !== "undefined") {
                                                        return context.getElementsByTagName(tag);

                                                        // DocumentFragment nodes don't have gEBTN
                                                } else if (support.qsa) {
                                                        return context.querySelectorAll(tag);
                                                }
                                        } :

                                        function (tag, context) {
                                                var elem,
                                                        tmp = [],
                                                        i = 0,
                                                        // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
                                                        results = context.getElementsByTagName(tag);

                                                // Filter out possible comments
                                                if (tag === "*") {
                                                        while ((elem = results[i++])) {
                                                                if (elem.nodeType === 1) {
                                                                        tmp.push(elem);
                                                                }
                                                        }

                                                        return tmp;
                                                }
                                                return results;
                                        };

                                // Class
                                Expr.find["CLASS"] = support.getElementsByClassName && function (className, context) {
                                        if (typeof context.getElementsByClassName !== "undefined" && documentIsHTML) {
                                                return context.getElementsByClassName(className);
                                        }
                                };

                                /* QSA/matchesSelector
       ---------------------------------------------------------------------- */

                                // QSA and matchesSelector support

                                // matchesSelector(:active) reports false when true (IE9/Opera 11.5)
                                rbuggyMatches = [];

                                // qSa(:focus) reports false when true (Chrome 21)
                                // We allow this because of a bug in IE8/9 that throws an error
                                // whenever `document.activeElement` is accessed on an iframe
                                // So, we allow :focus to pass through QSA all the time to avoid the IE error
                                // See http://bugs.jquery.com/ticket/13378
                                rbuggyQSA = [];

                                if ((support.qsa = rnative.test(document.querySelectorAll))) {
                                        // Build QSA regex
                                        // Regex strategy adopted from Diego Perini
                                        assert(function (div) {
                                                // Select is set to empty string on purpose
                                                // This is to test IE's treatment of not explicitly
                                                // setting a boolean content attribute,
                                                // since its presence should be enough
                                                // http://bugs.jquery.com/ticket/12359
                                                docElem.appendChild(div).innerHTML = "<a id='" + expando + "'></a>" +
                                                        "<select id='" + expando + "-\r\\' msallowcapture=''>" +
                                                        "<option selected=''></option></select>";

                                                // Support: IE8, Opera 11-12.16
                                                // Nothing should be selected when empty strings follow ^= or $= or *=
                                                // The test attribute must be unknown in Opera but "safe" for WinRT
                                                // http://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
                                                if (div.querySelectorAll("[msallowcapture^='']").length) {
                                                        rbuggyQSA.push("[*^$]=" + whitespace + "*(?:''|\"\")");
                                                }

                                                // Support: IE8
                                                // Boolean attributes and "value" are not treated correctly
                                                if (!div.querySelectorAll("[selected]").length) {
                                                        rbuggyQSA.push("\\[" + whitespace + "*(?:value|" + booleans + ")");
                                                }

                                                // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
                                                if (!div.querySelectorAll("[id~=" + expando + "-]").length) {
                                                        rbuggyQSA.push("~=");
                                                }

                                                // Webkit/Opera - :checked should return selected option elements
                                                // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
                                                // IE8 throws error here and will not see later tests
                                                if (!div.querySelectorAll(":checked").length) {
                                                        rbuggyQSA.push(":checked");
                                                }

                                                // Support: Safari 8+, iOS 8+
                                                // https://bugs.webkit.org/show_bug.cgi?id=136851
                                                // In-page `selector#id sibing-combinator selector` fails
                                                if (!div.querySelectorAll("a#" + expando + "+*").length) {
                                                        rbuggyQSA.push(".#.+[+~]");
                                                }
                                        });

                                        assert(function (div) {
                                                // Support: Windows 8 Native Apps
                                                // The type and name attributes are restricted during .innerHTML assignment
                                                var input = document.createElement("input");
                                                input.setAttribute("type", "hidden");
                                                div.appendChild(input).setAttribute("name", "D");

                                                // Support: IE8
                                                // Enforce case-sensitivity of name attribute
                                                if (div.querySelectorAll("[name=d]").length) {
                                                        rbuggyQSA.push("name" + whitespace + "*[*^$|!~]?=");
                                                }

                                                // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
                                                // IE8 throws error here and will not see later tests
                                                if (!div.querySelectorAll(":enabled").length) {
                                                        rbuggyQSA.push(":enabled", ":disabled");
                                                }

                                                // Opera