The source code

X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/25ef3491bd9ae007ff1fc2b0d7943e6eaaccf775..3789b528d8dd8aad4558e38e22d775bcab1cbd36:/docs/source/DomQuery.html?ds=inline diff --git a/docs/source/DomQuery.html b/docs/source/DomQuery.html index 51fe6d2b..ae27f15f 100644 --- a/docs/source/DomQuery.html +++ b/docs/source/DomQuery.html @@ -1,857 +1,989 @@ + + The source code - - + + + + - -
/*!
- * Ext JS Library 3.0.3
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
+
+  /*
+ * This is code is also distributed under MIT license for use
+ * with jQuery and prototype JavaScript libraries.
  */
-/*
- * This is code is also distributed under MIT license for use
- * with jQuery and prototype JavaScript libraries.
- */
-/**
- * @class Ext.DomQuery
-Provides high performance selector/xpath processing by compiling queries into reusable functions. New pseudo classes and matchers can be plugged. It works on HTML and XML documents (if a content node is passed in).
-
-DomQuery supports most of the CSS3 selectors spec, along with some custom selectors and basic XPath.
-
-
-All selectors, attribute filters and pseudos below can be combined infinitely in any order. For example "div.foo:nth-child(odd)[@foo=bar].bar:first" would be a perfectly valid selector. Node filters are processed in the order in which they appear, which allows you to optimize your queries for your document structure.
-
-Element Selectors:
-
-     * any element
-     E an element with the tag E
-     E F All descendent elements of E that have the tag F
-     E > F or E/F all direct children elements of E that have the tag F
-     E + F all elements with the tag F that are immediately preceded by an element with the tag E
-     E ~ F all elements with the tag F that are preceded by a sibling element with the tag E
-
-Attribute Selectors:
-The use of @ and quotes are optional. For example, div[@foo='bar'] is also a valid attribute selector.
-
-     E[foo] has an attribute "foo"
-     E[foo=bar] has an attribute "foo" that equals "bar"
-     E[foo^=bar] has an attribute "foo" that starts with "bar"
-     E[foo$=bar] has an attribute "foo" that ends with "bar"
-     E[foo*=bar] has an attribute "foo" that contains the substring "bar"
-     E[foo%=2] has an attribute "foo" that is evenly divisible by 2
-     E[foo!=bar] has an attribute "foo" that does not equal "bar"
-
-Pseudo Classes:
-
-     E:first-child E is the first child of its parent
-     E:last-child E is the last child of its parent
-     E:nth-child(n) E is the nth child of its parent (1 based as per the spec)
-     E:nth-child(odd) E is an odd child of its parent
-     E:nth-child(even) E is an even child of its parent
-     E:only-child E is the only child of its parent
-     E:checked E is an element that is has a checked attribute that is true (e.g. a radio or checkbox) 
-     E:first the first E in the resultset
-     E:last the last E in the resultset
-     E:nth(n) the nth E in the resultset (1 based)
-     E:odd shortcut for :nth-child(odd)
-     E:even shortcut for :nth-child(even)
-     E:contains(foo) E's innerHTML contains the substring "foo"
-     E:nodeValue(foo) E contains a textNode with a nodeValue that equals "foo"
-     E:not(S) an E element that does not match simple selector S
-     E:has(S) an E element that has a descendent that matches simple selector S
-     E:next(S) an E element whose next sibling matches simple selector S
-     E:prev(S) an E element whose previous sibling matches simple selector S
-
-CSS Value Selectors:
-
-     E{display=none} css value "display" that equals "none"
-     E{display^=none} css value "display" that starts with "none"
-     E{display$=none} css value "display" that ends with "none"
-     E{display*=none} css value "display" that contains the substring "none"
-     E{display%=2} css value "display" that is evenly divisible by 2
-     E{display!=none} css value "display" that does not equal "none"
-
- * @singleton
- */
-Ext.DomQuery = function(){
-    var cache = {}, 
-    	simpleCache = {}, 
-    	valueCache = {},
-    	nonSpace = /\S/,
-    	trimRe = /^\s+|\s+$/g,
-    	tplRe = /\{(\d+)\}/g,
-    	modeRe = /^(\s?[\/>+~]\s?|\s|$)/,
-    	tagTokenRe = /^(#)?([\w-\*]+)/,
-    	nthRe = /(\d*)n\+?(\d*)/, 
-    	nthRe2 = /\D/,
-    	// This is for IE MSXML which does not support expandos.
-	    // IE runs the same speed using setAttribute, however FF slows way down
-	    // and Safari completely fails so they need to continue to use expandos.
-	    isIE = window.ActiveXObject ? true : false,
-        isOpera = Ext.isOpera,
-	    key = 30803;
-	    
-    // this eval is stop the compressor from
-	// renaming the variable to something shorter
-	eval("var batch = 30803;");    	
-
-    function child(p, index){
-        var i = 0,
-        	n = p.firstChild;
-        while(n){
-            if(n.nodeType == 1){
-               if(++i == index){
-                   return n;
-               }
-            }
-            n = n.nextSibling;
-        }
-        return null;
-    };
-
-    function next(n){
-        while((n = n.nextSibling) && n.nodeType != 1);
-        return n;
-    };
-
-    function prev(n){
-        while((n = n.previousSibling) && n.nodeType != 1);
-        return n;
-    };
-
-    function children(d){
-        var n = d.firstChild, ni = -1,
-        	nx;
- 	    while(n){
- 	        nx = n.nextSibling;
- 	        if(n.nodeType == 3 && !nonSpace.test(n.nodeValue)){
- 	            d.removeChild(n);
- 	        }else{
- 	            n.nodeIndex = ++ni;
- 	        }
- 	        n = nx;
- 	    }
- 	    return this;
- 	};
-
-    function byClassName(c, a, v){
-        if(!v){
-            return c;
-        }
-        var r = [], ri = -1, cn;
-        for(var i = 0, ci; ci = c[i]; i++){
-            if((' '+ci.className+' ').indexOf(v) != -1){
-                r[++ri] = ci;
-            }
-        }
-        return r;
-    };
-
-    function attrValue(n, attr){
-        if(!n.tagName && typeof n.length != "undefined"){
-            n = n[0];
-        }
-        if(!n){
-            return null;
-        }
-        if(attr == "for"){
-            return n.htmlFor;
-        }
-        if(attr == "class" || attr == "className"){
-            return n.className;
-        }
-        return n.getAttribute(attr) || n[attr];
-
-    };
-
-    function getNodes(ns, mode, tagName){
-        var result = [], ri = -1, cs;
-        if(!ns){
-            return result;
-        }
-        tagName = tagName || "*";
-        if(typeof ns.getElementsByTagName != "undefined"){
-            ns = [ns];
-        }
-        if(!mode){
-            for(var i = 0, ni; ni = ns[i]; i++){
-                cs = ni.getElementsByTagName(tagName);
-                for(var j = 0, ci; ci = cs[j]; j++){
-                    result[++ri] = ci;
-                }
-            }
-        }else if(mode == "/" || mode == ">"){
-            var utag = tagName.toUpperCase();
-            for(var i = 0, ni, cn; ni = ns[i]; i++){
-                cn = isOpera ? ni.childNodes : (ni.children || ni.childNodes);
-                for(var j = 0, cj; cj = cn[j]; j++){
-                    if(cj.nodeName == utag || cj.nodeName == tagName  || tagName == '*'){
-                        result[++ri] = cj;
-                    }
-                }
-            }
-        }else if(mode == "+"){
-            var utag = tagName.toUpperCase();
-            for(var i = 0, n; n = ns[i]; i++){
-                while((n = n.nextSibling) && n.nodeType != 1);
-                if(n && (n.nodeName == utag || n.nodeName == tagName || tagName == '*')){
-                    result[++ri] = n;
-                }
-            }
-        }else if(mode == "~"){
-            var utag = tagName.toUpperCase();
-            for(var i = 0, n; n = ns[i]; i++){
-                while((n = n.nextSibling)){
-                    if (n.nodeName == utag || n.nodeName == tagName || tagName == '*'){
-                        result[++ri] = n;
-                    }
-                }
-            }
-        }
-        return result;
-    };
-
-    function concat(a, b){
-        if(b.slice){
-            return a.concat(b);
-        }
-        for(var i = 0, l = b.length; i < l; i++){
-            a[a.length] = b[i];
-        }
-        return a;
-    }
-
-    function byTag(cs, tagName){
-        if(cs.tagName || cs == document){
-            cs = [cs];
-        }
-        if(!tagName){
-            return cs;
-        }
-        var r = [], ri = -1;
-        tagName = tagName.toLowerCase();
-        for(var i = 0, ci; ci = cs[i]; i++){
-            if(ci.nodeType == 1 && ci.tagName.toLowerCase()==tagName){
-                r[++ri] = ci;
-            }
-        }
-        return r;
-    };
-
-    function byId(cs, attr, id){
-        if(cs.tagName || cs == document){
-            cs = [cs];
-        }
-        if(!id){
-            return cs;
-        }
-        var r = [], ri = -1;
-        for(var i = 0,ci; ci = cs[i]; i++){
-            if(ci && ci.id == id){
-                r[++ri] = ci;
-                return r;
-            }
-        }
-        return r;
-    };
-
-    function byAttribute(cs, attr, value, op, custom){
-        var r = [], 
-        	ri = -1, 
-        	st = custom=="{",
-        	f = Ext.DomQuery.operators[op];
-        for(var i = 0, ci; ci = cs[i]; i++){
-            if(ci.nodeType != 1){
-                continue;
-            }
-            var a;
-            if(st){
-                a = Ext.DomQuery.getStyle(ci, attr);
-            }
-            else if(attr == "class" || attr == "className"){
-                a = ci.className;
-            }else if(attr == "for"){
-                a = ci.htmlFor;
-            }else if(attr == "href"){
-                a = ci.getAttribute("href", 2);
-            }else{
-                a = ci.getAttribute(attr);
-            }
-            if((f && f(a, value)) || (!f && a)){
-                r[++ri] = ci;
-            }
-        }
-        return r;
-    };
-
-    function byPseudo(cs, name, value){
-        return Ext.DomQuery.pseudos[name](cs, value);
-    };
-
-    function nodupIEXml(cs){
-        var d = ++key, 
-        	r;
-        cs[0].setAttribute("_nodup", d);
-        r = [cs[0]];
-        for(var i = 1, len = cs.length; i < len; i++){
-            var c = cs[i];
-            if(!c.getAttribute("_nodup") != d){
-                c.setAttribute("_nodup", d);
-                r[r.length] = c;
-            }
-        }
-        for(var i = 0, len = cs.length; i < len; i++){
-            cs[i].removeAttribute("_nodup");
-        }
-        return r;
-    }
-
-    function nodup(cs){
-        if(!cs){
-            return [];
-        }
-        var len = cs.length, c, i, r = cs, cj, ri = -1;
-        if(!len || typeof cs.nodeType != "undefined" || len == 1){
-            return cs;
-        }
-        if(isIE && typeof cs[0].selectSingleNode != "undefined"){
-            return nodupIEXml(cs);
-        }
-        var d = ++key;
-        cs[0]._nodup = d;
-        for(i = 1; c = cs[i]; i++){
-            if(c._nodup != d){
-                c._nodup = d;
-            }else{
-                r = [];
-                for(var j = 0; j < i; j++){
-                    r[++ri] = cs[j];
-                }
-                for(j = i+1; cj = cs[j]; j++){
-                    if(cj._nodup != d){
-                        cj._nodup = d;
-                        r[++ri] = cj;
-                    }
-                }
-                return r;
-            }
-        }
-        return r;
-    }
-
-    function quickDiffIEXml(c1, c2){
-        var d = ++key,
-        	r = [];
-        for(var i = 0, len = c1.length; i < len; i++){
-            c1[i].setAttribute("_qdiff", d);
-        }        
-        for(var i = 0, len = c2.length; i < len; i++){
-            if(c2[i].getAttribute("_qdiff") != d){
-                r[r.length] = c2[i];
-            }
-        }
-        for(var i = 0, len = c1.length; i < len; i++){
-           c1[i].removeAttribute("_qdiff");
-        }
-        return r;
-    }
-
-    function quickDiff(c1, c2){
-        var len1 = c1.length,
-        	d = ++key,
-        	r = [];
-        if(!len1){
-            return c2;
-        }
-        if(isIE && c1[0].selectSingleNode){
-            return quickDiffIEXml(c1, c2);
-        }        
-        for(var i = 0; i < len1; i++){
-            c1[i]._qdiff = d;
-        }        
-        for(var i = 0, len = c2.length; i < len; i++){
-            if(c2[i]._qdiff != d){
-                r[r.length] = c2[i];
-            }
-        }
-        return r;
-    }
-
-    function quickId(ns, mode, root, id){
-        if(ns == root){
-           var d = root.ownerDocument || root;
-           return d.getElementById(id);
-        }
-        ns = getNodes(ns, mode, "*");
-        return byId(ns, null, id);
-    }
-
-    return {
-        getStyle : function(el, name){
-            return Ext.fly(el).getStyle(name);
-        },
-        /**
-         * Compiles a selector/xpath query into a reusable function. The returned function
-         * takes one parameter "root" (optional), which is the context node from where the query should start.
-         * @param {String} selector The selector/xpath query
-         * @param {String} type (optional) Either "select" (the default) or "simple" for a simple selector match
-         * @return {Function}
-         */
-        compile : function(path, type){
-            type = type || "select";
-
-            var fn = ["var f = function(root){\n var mode; ++batch; var n = root || document;\n"],
-            	q = path, mode, lq,
-            	tk = Ext.DomQuery.matchers,
-            	tklen = tk.length,
-            	mm,
-            	// accept leading mode switch
-            	lmode = q.match(modeRe);
-            
-            if(lmode && lmode[1]){
-                fn[fn.length] = 'mode="'+lmode[1].replace(trimRe, "")+'";';
-                q = q.replace(lmode[1], "");
-            }
-            // strip leading slashes
-            while(path.substr(0, 1)=="/"){
-                path = path.substr(1);
-            }
-
-            while(q && lq != q){
-                lq = q;
-                var tm = q.match(tagTokenRe);
-                if(type == "select"){
-                    if(tm){
-                        if(tm[1] == "#"){
-                            fn[fn.length] = 'n = quickId(n, mode, root, "'+tm[2]+'");';
-                        }else{
-                            fn[fn.length] = 'n = getNodes(n, mode, "'+tm[2]+'");';
-                        }
-                        q = q.replace(tm[0], "");
-                    }else if(q.substr(0, 1) != '@'){
-                        fn[fn.length] = 'n = getNodes(n, mode, "*");';
-                    }
-                }else{
-                    if(tm){
-                        if(tm[1] == "#"){
-                            fn[fn.length] = 'n = byId(n, null, "'+tm[2]+'");';
-                        }else{
-                            fn[fn.length] = 'n = byTag(n, "'+tm[2]+'");';
-                        }
-                        q = q.replace(tm[0], "");
-                    }
-                }
-                while(!(mm = q.match(modeRe))){
-                    var matched = false;
-                    for(var j = 0; j < tklen; j++){
-                        var t = tk[j];
-                        var m = q.match(t.re);
-                        if(m){
-                            fn[fn.length] = t.select.replace(tplRe, function(x, i){
-                                                    return m[i];
-                                                });
-                            q = q.replace(m[0], "");
-                            matched = true;
-                            break;
-                        }
-                    }
-                    // prevent infinite loop on bad selector
-                    if(!matched){
-                        throw 'Error parsing selector, parsing failed at "' + q + '"';
-                    }
-                }
-                if(mm[1]){
-                    fn[fn.length] = 'mode="'+mm[1].replace(trimRe, "")+'";';
-                    q = q.replace(mm[1], "");
-                }
-            }
-            fn[fn.length] = "return nodup(n);\n}";
-            eval(fn.join(""));
-            return f;
-        },
-
-        /**
-         * Selects a group of elements.
-         * @param {String} selector The selector/xpath query (can be a comma separated list of selectors)
-         * @param {Node} root (optional) The start of the query (defaults to document).
-         * @return {Array} An Array of DOM elements which match the selector. If there are
-         * no matches, and empty Array is returned.
-         */
-        select : function(path, root, type){
-            if(!root || root == document){
-                root = document;
-            }
-            if(typeof root == "string"){
-                root = document.getElementById(root);
-            }
-            var paths = path.split(","),
-            	results = [];
-            for(var i = 0, len = paths.length; i < len; i++){
-                var p = paths[i].replace(trimRe, "");
-                if(!cache[p]){
-                    cache[p] = Ext.DomQuery.compile(p);
-                    if(!cache[p]){
-                        throw p + " is not a valid selector";
-                    }
-                }
-                var result = cache[p](root);
-                if(result && result != document){
-                    results = results.concat(result);
-                }
-            }
-            if(paths.length > 1){
-                return nodup(results);
-            }
-            return results;
-        },
-
-        /**
-         * Selects a single element.
-         * @param {String} selector The selector/xpath query
-         * @param {Node} root (optional) The start of the query (defaults to document).
-         * @return {Element} The DOM element which matched the selector.
-         */
-        selectNode : function(path, root){
-            return Ext.DomQuery.select(path, root)[0];
-        },
-
-        /**
-         * Selects the value of a node, optionally replacing null with the defaultValue.
-         * @param {String} selector The selector/xpath query
-         * @param {Node} root (optional) The start of the query (defaults to document).
-         * @param {String} defaultValue
-         * @return {String}
-         */
-        selectValue : function(path, root, defaultValue){
-            path = path.replace(trimRe, "");
-            if(!valueCache[path]){
-                valueCache[path] = Ext.DomQuery.compile(path, "select");
-            }
-            var n = valueCache[path](root),
-            	v;
-            n = n[0] ? n[0] : n;
-            v = (n && n.firstChild ? n.firstChild.nodeValue : null);
-            return ((v === null||v === undefined||v==='') ? defaultValue : v);
-        },
-
-        /**
-         * Selects the value of a node, parsing integers and floats. Returns the defaultValue, or 0 if none is specified.
-         * @param {String} selector The selector/xpath query
-         * @param {Node} root (optional) The start of the query (defaults to document).
-         * @param {Number} defaultValue
-         * @return {Number}
-         */
-        selectNumber : function(path, root, defaultValue){
-            var v = Ext.DomQuery.selectValue(path, root, defaultValue || 0);
-            return parseFloat(v);
-        },
-
-        /**
-         * Returns true if the passed element(s) match the passed simple selector (e.g. div.some-class or span:first-child)
-         * @param {String/HTMLElement/Array} el An element id, element or array of elements
-         * @param {String} selector The simple selector to test
-         * @return {Boolean}
-         */
-        is : function(el, ss){
-            if(typeof el == "string"){
-                el = document.getElementById(el);
-            }
-            var isArray = Ext.isArray(el),
-            	result = Ext.DomQuery.filter(isArray ? el : [el], ss);
-            return isArray ? (result.length == el.length) : (result.length > 0);
-        },
-
-        /**
-         * Filters an array of elements to only include matches of a simple selector (e.g. div.some-class or span:first-child)
-         * @param {Array} el An array of elements to filter
-         * @param {String} selector The simple selector to test
-         * @param {Boolean} nonMatches If true, it returns the elements that DON'T match
-         * the selector instead of the ones that match
-         * @return {Array} An Array of DOM elements which match the selector. If there are
-         * no matches, and empty Array is returned.
-         */
-        filter : function(els, ss, nonMatches){
-            ss = ss.replace(trimRe, "");
-            if(!simpleCache[ss]){
-                simpleCache[ss] = Ext.DomQuery.compile(ss, "simple");
-            }
-            var result = simpleCache[ss](els);
-            return nonMatches ? quickDiff(result, els) : result;
-        },
-
-        /**
-         * Collection of matching regular expressions and code snippets.
-         */
-        matchers : [{
-                re: /^\.([\w-]+)/,
-                select: 'n = byClassName(n, null, " {1} ");'
-            }, {
-                re: /^\:([\w-]+)(?:\(((?:[^\s>\/]*|.*?))\))?/,
-                select: 'n = byPseudo(n, "{1}", "{2}");'
-            },{
-                re: /^(?:([\[\{])(?:@)?([\w-]+)\s?(?:(=|.=)\s?['"]?(.*?)["']?)?[\]\}])/,
-                select: 'n = byAttribute(n, "{2}", "{4}", "{3}", "{1}");'
-            }, {
-                re: /^#([\w-]+)/,
-                select: 'n = byId(n, null, "{1}");'
-            },{
-                re: /^@([\w-]+)/,
-                select: 'return {firstChild:{nodeValue:attrValue(n, "{1}")}};'
-            }
-        ],
-
-        /**
-         * Collection of operator comparison functions. The default operators are =, !=, ^=, $=, *=, %=, |= and ~=.
-         * New operators can be added as long as the match the format c= where c is any character other than space, > <.
-         */
-        operators : {
-            "=" : function(a, v){
-                return a == v;
-            },
-            "!=" : function(a, v){
-                return a != v;
-            },
-            "^=" : function(a, v){
-                return a && a.substr(0, v.length) == v;
-            },
-            "$=" : function(a, v){
-                return a && a.substr(a.length-v.length) == v;
-            },
-            "*=" : function(a, v){
-                return a && a.indexOf(v) !== -1;
-            },
-            "%=" : function(a, v){
-                return (a % v) == 0;
-            },
-            "|=" : function(a, v){
-                return a && (a == v || a.substr(0, v.length+1) == v+'-');
-            },
-            "~=" : function(a, v){
-                return a && (' '+a+' ').indexOf(' '+v+' ') != -1;
-            }
-        },
-
-        /**
-         * Object hash of "pseudo class" filter functions which are used when filtering selections. Each function is passed
-         * two parameters:

-         * c : ArrayAn Array of DOM elements to filter.
-         * v : StringThe argument (if any) supplied in the selector.
-         * 
-         * A filter function returns an Array of DOM elements which conform to the pseudo class.
-         * In addition to the provided pseudo classes listed above such as first-child and nth-child,
-         * developers may add additional, custom psuedo class filters to select elements according to application-specific requirements.
-         * For example, to filter <a> elements to only return links to external resources:
-         * -Ext.DomQuery.pseudos.external = function(c, v){
-    var r = [], ri = -1;
-    for(var i = 0, ci; ci = c[i]; i++){
-//      Include in result set only if it's a link to an external resource
-        if(ci.hostname != location.hostname){
-            r[++ri] = ci;
-        }
-    }
-    return r;
-};
-         * Then external links could be gathered with the following statement:-var externalLinks = Ext.select("a:external");
-
-         */
-        pseudos : {
-            "first-child" : function(c){
-                var r = [], ri = -1, n;
-                for(var i = 0, ci; ci = n = c[i]; i++){
-                    while((n = n.previousSibling) && n.nodeType != 1);
-                    if(!n){
-                        r[++ri] = ci;
-                    }
-                }
-                return r;
-            },
-
-            "last-child" : function(c){
-                var r = [], ri = -1, n;
-                for(var i = 0, ci; ci = n = c[i]; i++){
-                    while((n = n.nextSibling) && n.nodeType != 1);
-                    if(!n){
-                        r[++ri] = ci;
-                    }
-                }
-                return r;
-            },
-
-            "nth-child" : function(c, a) {
-                var r = [], ri = -1,
-                	m = nthRe.exec(a == "even" && "2n" || a == "odd" && "2n+1" || !nthRe2.test(a) && "n+" + a || a),
-                	f = (m[1] || 1) - 0, l = m[2] - 0;
-                for(var i = 0, n; n = c[i]; i++){
-                    var pn = n.parentNode;
-                    if (batch != pn._batch) {
-                        var j = 0;
-                        for(var cn = pn.firstChild; cn; cn = cn.nextSibling){
-                            if(cn.nodeType == 1){
-                               cn.nodeIndex = ++j;
-                            }
-                        }
-                        pn._batch = batch;
-                    }
-                    if (f == 1) {
-                        if (l == 0 || n.nodeIndex == l){
-                            r[++ri] = n;
-                        }
-                    } else if ((n.nodeIndex + l) % f == 0){
-                        r[++ri] = n;
-                    }
-                }
-
-                return r;
-            },
-
-            "only-child" : function(c){
-                var r = [], ri = -1;;
-                for(var i = 0, ci; ci = c[i]; i++){
-                    if(!prev(ci) && !next(ci)){
-                        r[++ri] = ci;
-                    }
-                }
-                return r;
-            },
-
-            "empty" : function(c){
-                var r = [], ri = -1;
-                for(var i = 0, ci; ci = c[i]; i++){
-                    var cns = ci.childNodes, j = 0, cn, empty = true;
-                    while(cn = cns[j]){
-                        ++j;
-                        if(cn.nodeType == 1 || cn.nodeType == 3){
-                            empty = false;
-                            break;
-                        }
-                    }
-                    if(empty){
-                        r[++ri] = ci;
-                    }
-                }
-                return r;
-            },
-
-            "contains" : function(c, v){
-                var r = [], ri = -1;
-                for(var i = 0, ci; ci = c[i]; i++){
-                    if((ci.textContent||ci.innerText||'').indexOf(v) != -1){
-                        r[++ri] = ci;
-                    }
-                }
-                return r;
-            },
-
-            "nodeValue" : function(c, v){
-                var r = [], ri = -1;
-                for(var i = 0, ci; ci = c[i]; i++){
-                    if(ci.firstChild && ci.firstChild.nodeValue == v){
-                        r[++ri] = ci;
-                    }
-                }
-                return r;
-            },
-
-            "checked" : function(c){
-                var r = [], ri = -1;
-                for(var i = 0, ci; ci = c[i]; i++){
-                    if(ci.checked == true){
-                        r[++ri] = ci;
-                    }
-                }
-                return r;
-            },
-
-            "not" : function(c, ss){
-                return Ext.DomQuery.filter(c, ss, true);
-            },
-
-            "any" : function(c, selectors){
-                var ss = selectors.split('|'),
-                	r = [], ri = -1, s;
-                for(var i = 0, ci; ci = c[i]; i++){
-                    for(var j = 0; s = ss[j]; j++){
-                        if(Ext.DomQuery.is(ci, s)){
-                            r[++ri] = ci;
-                            break;
-                        }
-                    }
-                }
-                return r;
-            },
-
-            "odd" : function(c){
-                return this["nth-child"](c, "odd");
-            },
-
-            "even" : function(c){
-                return this["nth-child"](c, "even");
-            },
-
-            "nth" : function(c, a){
-                return c[a-1] || [];
-            },
-
-            "first" : function(c){
-                return c[0] || [];
-            },
-
-            "last" : function(c){
-                return c[c.length-1] || [];
-            },
-
-            "has" : function(c, ss){
-                var s = Ext.DomQuery.select,
-                	r = [], ri = -1;
-                for(var i = 0, ci; ci = c[i]; i++){
-                    if(s(ss, ci).length > 0){
-                        r[++ri] = ci;
-                    }
-                }
-                return r;
-            },
-
-            "next" : function(c, ss){
-                var is = Ext.DomQuery.is,
-                	r = [], ri = -1;
-                for(var i = 0, ci; ci = c[i]; i++){
-                    var n = next(ci);
-                    if(n && is(n, ss)){
-                        r[++ri] = ci;
-                    }
-                }
-                return r;
-            },
-
-            "prev" : function(c, ss){
-                var is = Ext.DomQuery.is,
-                	r = [], ri = -1;
-                for(var i = 0, ci; ci = c[i]; i++){
-                    var n = prev(ci);
-                    if(n && is(n, ss)){
-                        r[++ri] = ci;
-                    }
-                }
-                return r;
-            }
-        }
-    };
-}();
-
-/**
- * Selects an array of DOM nodes by CSS/XPath selector. Shorthand of {@link Ext.DomQuery#select}
- * @param {String} path The selector/xpath query
- * @param {Node} root (optional) The start of the query (defaults to document).
- * @return {Array}
- * @member Ext
- * @method query
- */
-Ext.query = Ext.DomQuery.select;
+/**
+ * @class Ext.DomQuery
+Provides high performance selector/xpath processing by compiling queries into reusable functions. New pseudo classes and matchers can be plugged. It works on HTML and XML documents (if a content node is passed in).
+<p>
+DomQuery supports most of the <a href="http://www.w3.org/TR/2005/WD-css3-selectors-20051215/#selectors">CSS3 selectors spec</a>, along with some custom selectors and basic XPath.</p>
+
+<p>
+All selectors, attribute filters and pseudos below can be combined infinitely in any order. For example "div.foo:nth-child(odd)[@foo=bar].bar:first" would be a perfectly valid selector. Node filters are processed in the order in which they appear, which allows you to optimize your queries for your document structure.
+</p>
+<h4>Element Selectors:</h4>
+<ul class="list">
+    <li> <b>*</b> any element</li>
+    <li> <b>E</b> an element with the tag E</li>
+    <li> <b>E F</b> All descendent elements of E that have the tag F</li>
+    <li> <b>E > F</b> or <b>E/F</b> all direct children elements of E that have the tag F</li>
+    <li> <b>E + F</b> all elements with the tag F that are immediately preceded by an element with the tag E</li>
+    <li> <b>E ~ F</b> all elements with the tag F that are preceded by a sibling element with the tag E</li>
+</ul>
+<h4>Attribute Selectors:</h4>
+<p>The use of &#64; and quotes are optional. For example, div[&#64;foo='bar'] is also a valid attribute selector.</p>
+<ul class="list">
+    <li> <b>E[foo]</b> has an attribute "foo"</li>
+    <li> <b>E[foo=bar]</b> has an attribute "foo" that equals "bar"</li>
+    <li> <b>E[foo^=bar]</b> has an attribute "foo" that starts with "bar"</li>
+    <li> <b>E[foo$=bar]</b> has an attribute "foo" that ends with "bar"</li>
+    <li> <b>E[foo*=bar]</b> has an attribute "foo" that contains the substring "bar"</li>
+    <li> <b>E[foo%=2]</b> has an attribute "foo" that is evenly divisible by 2</li>
+    <li> <b>E[foo!=bar]</b> attribute "foo" does not equal "bar"</li>
+</ul>
+<h4>Pseudo Classes:</h4>
+<ul class="list">
+    <li> <b>E:first-child</b> E is the first child of its parent</li>
+    <li> <b>E:last-child</b> E is the last child of its parent</li>
+    <li> <b>E:nth-child(<i>n</i>)</b> E is the <i>n</i>th child of its parent (1 based as per the spec)</li>
+    <li> <b>E:nth-child(odd)</b> E is an odd child of its parent</li>
+    <li> <b>E:nth-child(even)</b> E is an even child of its parent</li>
+    <li> <b>E:only-child</b> E is the only child of its parent</li>
+    <li> <b>E:checked</b> E is an element that is has a checked attribute that is true (e.g. a radio or checkbox) </li>
+    <li> <b>E:first</b> the first E in the resultset</li>
+    <li> <b>E:last</b> the last E in the resultset</li>
+    <li> <b>E:nth(<i>n</i>)</b> the <i>n</i>th E in the resultset (1 based)</li>
+    <li> <b>E:odd</b> shortcut for :nth-child(odd)</li>
+    <li> <b>E:even</b> shortcut for :nth-child(even)</li>
+    <li> <b>E:contains(foo)</b> E's innerHTML contains the substring "foo"</li>
+    <li> <b>E:nodeValue(foo)</b> E contains a textNode with a nodeValue that equals "foo"</li>
+    <li> <b>E:not(S)</b> an E element that does not match simple selector S</li>
+    <li> <b>E:has(S)</b> an E element that has a descendent that matches simple selector S</li>
+    <li> <b>E:next(S)</b> an E element whose next sibling matches simple selector S</li>
+    <li> <b>E:prev(S)</b> an E element whose previous sibling matches simple selector S</li>
+    <li> <b>E:any(S1|S2|S2)</b> an E element which matches any of the simple selectors S1, S2 or S3//\\</li>
+</ul>
+<h4>CSS Value Selectors:</h4>
+<ul class="list">
+    <li> <b>E{display=none}</b> css value "display" that equals "none"</li>
+    <li> <b>E{display^=none}</b> css value "display" that starts with "none"</li>
+    <li> <b>E{display$=none}</b> css value "display" that ends with "none"</li>
+    <li> <b>E{display*=none}</b> css value "display" that contains the substring "none"</li>
+    <li> <b>E{display%=2}</b> css value "display" that is evenly divisible by 2</li>
+    <li> <b>E{display!=none}</b> css value "display" that does not equal "none"</li>
+</ul>
+ * @singleton
+ */
+Ext.ns('Ext.core');
+
+Ext.core.DomQuery = Ext.DomQuery = function(){
+    var cache = {},
+        simpleCache = {},
+        valueCache = {},
+        nonSpace = /\S/,
+        trimRe = /^\s+|\s+$/g,
+        tplRe = /\{(\d+)\}/g,
+        modeRe = /^(\s?[\/>+~]\s?|\s|$)/,
+        tagTokenRe = /^(#)?([\w-\*]+)/,
+        nthRe = /(\d*)n\+?(\d*)/,
+        nthRe2 = /\D/,
+        // This is for IE MSXML which does not support expandos.
+    // IE runs the same speed using setAttribute, however FF slows way down
+    // and Safari completely fails so they need to continue to use expandos.
+    isIE = window.ActiveXObject ? true : false,
+    key = 30803;
+
+    // this eval is stop the compressor from
+    // renaming the variable to something shorter
+    eval("var batch = 30803;");
+
+    // Retrieve the child node from a particular
+    // parent at the specified index.
+    function child(parent, index){
+        var i = 0,
+            n = parent.firstChild;
+        while(n){
+            if(n.nodeType == 1){
+               if(++i == index){
+                   return n;
+               }
+            }
+            n = n.nextSibling;
+        }
+        return null;
+    }
+
+    // retrieve the next element node
+    function next(n){
+        while((n = n.nextSibling) && n.nodeType != 1);
+        return n;
+    }
+
+    // retrieve the previous element node
+    function prev(n){
+        while((n = n.previousSibling) && n.nodeType != 1);
+        return n;
+    }
+
+    // Mark each child node with a nodeIndex skipping and
+    // removing empty text nodes.
+    function children(parent){
+        var n = parent.firstChild,
+        nodeIndex = -1,
+        nextNode;
+        while(n){
+            nextNode = n.nextSibling;
+            // clean worthless empty nodes.
+            if(n.nodeType == 3 && !nonSpace.test(n.nodeValue)){
+            parent.removeChild(n);
+            }else{
+            // add an expando nodeIndex
+            n.nodeIndex = ++nodeIndex;
+            }
+            n = nextNode;
+        }
+        return this;
+    }
+
+
+    // nodeSet - array of nodes
+    // cls - CSS Class
+    function byClassName(nodeSet, cls){
+        if(!cls){
+            return nodeSet;
+        }
+        var result = [], ri = -1;
+        for(var i = 0, ci; ci = nodeSet[i]; i++){
+            if((' '+ci.className+' ').indexOf(cls) != -1){
+                result[++ri] = ci;
+            }
+        }
+        return result;
+    };
+
+    function attrValue(n, attr){
+        // if its an array, use the first node.
+        if(!n.tagName && typeof n.length != "undefined"){
+            n = n[0];
+        }
+        if(!n){
+            return null;
+        }
+
+        if(attr == "for"){
+            return n.htmlFor;
+        }
+        if(attr == "class" || attr == "className"){
+            return n.className;
+        }
+        return n.getAttribute(attr) || n[attr];
+
+    };
+
+
+    // ns - nodes
+    // mode - false, /, >, +, ~
+    // tagName - defaults to "*"
+    function getNodes(ns, mode, tagName){
+        var result = [], ri = -1, cs;
+        if(!ns){
+            return result;
+        }
+        tagName = tagName || "*";
+        // convert to array
+        if(typeof ns.getElementsByTagName != "undefined"){
+            ns = [ns];
+        }
+
+        // no mode specified, grab all elements by tagName
+        // at any depth
+        if(!mode){
+            for(var i = 0, ni; ni = ns[i]; i++){
+                cs = ni.getElementsByTagName(tagName);
+                for(var j = 0, ci; ci = cs[j]; j++){
+                    result[++ri] = ci;
+                }
+            }
+        // Direct Child mode (/ or >)
+        // E > F or E/F all direct children elements of E that have the tag
+        } else if(mode == "/" || mode == ">"){
+            var utag = tagName.toUpperCase();
+            for(var i = 0, ni, cn; ni = ns[i]; i++){
+                cn = ni.childNodes;
+                for(var j = 0, cj; cj = cn[j]; j++){
+                    if(cj.nodeName == utag || cj.nodeName == tagName  || tagName == '*'){
+                        result[++ri] = cj;
+                    }
+                }
+            }
+        // Immediately Preceding mode (+)
+        // E + F all elements with the tag F that are immediately preceded by an element with the tag E
+        }else if(mode == "+"){
+            var utag = tagName.toUpperCase();
+            for(var i = 0, n; n = ns[i]; i++){
+                while((n = n.nextSibling) && n.nodeType != 1);
+                if(n && (n.nodeName == utag || n.nodeName == tagName || tagName == '*')){
+                    result[++ri] = n;
+                }
+            }
+        // Sibling mode (~)
+        // E ~ F all elements with the tag F that are preceded by a sibling element with the tag E
+        }else if(mode == "~"){
+            var utag = tagName.toUpperCase();
+            for(var i = 0, n; n = ns[i]; i++){
+                while((n = n.nextSibling)){
+                    if (n.nodeName == utag || n.nodeName == tagName || tagName == '*'){
+                        result[++ri] = n;
+                    }
+                }
+            }
+        }
+        return result;
+    }
+
+    function concat(a, b){
+        if(b.slice){
+            return a.concat(b);
+        }
+        for(var i = 0, l = b.length; i < l; i++){
+            a[a.length] = b[i];
+        }
+        return a;
+    }
+
+    function byTag(cs, tagName){
+        if(cs.tagName || cs == document){
+            cs = [cs];
+        }
+        if(!tagName){
+            return cs;
+        }
+        var result = [], ri = -1;
+        tagName = tagName.toLowerCase();
+        for(var i = 0, ci; ci = cs[i]; i++){
+            if(ci.nodeType == 1 && ci.tagName.toLowerCase() == tagName){
+                result[++ri] = ci;
+            }
+        }
+        return result;
+    }
+
+    function byId(cs, id){
+        if(cs.tagName || cs == document){
+            cs = [cs];
+        }
+        if(!id){
+            return cs;
+        }
+        var result = [], ri = -1;
+        for(var i = 0, ci; ci = cs[i]; i++){
+            if(ci && ci.id == id){
+                result[++ri] = ci;
+                return result;
+            }
+        }
+        return result;
+    }
+
+    // operators are =, !=, ^=, $=, *=, %=, |= and ~=
+    // custom can be "{"
+    function byAttribute(cs, attr, value, op, custom){
+        var result = [],
+            ri = -1,
+            useGetStyle = custom == "{",
+            fn = Ext.DomQuery.operators[op],
+            a,
+            xml,
+            hasXml;
+
+        for(var i = 0, ci; ci = cs[i]; i++){
+            // skip non-element nodes.
+            if(ci.nodeType != 1){
+                continue;
+            }
+            // only need to do this for the first node
+            if(!hasXml){
+                xml = Ext.DomQuery.isXml(ci);
+                hasXml = true;
+            }
+
+            // we only need to change the property names if we're dealing with html nodes, not XML
+            if(!xml){
+                if(useGetStyle){
+                    a = Ext.DomQuery.getStyle(ci, attr);
+                } else if (attr == "class" || attr == "className"){
+                    a = ci.className;
+                } else if (attr == "for"){
+                    a = ci.htmlFor;
+                } else if (attr == "href"){
+                    // getAttribute href bug
+                    // http://www.glennjones.net/Post/809/getAttributehrefbug.htm
+                    a = ci.getAttribute("href", 2);
+                } else{
+                    a = ci.getAttribute(attr);
+                }
+            }else{
+                a = ci.getAttribute(attr);
+            }
+            if((fn && fn(a, value)) || (!fn && a)){
+                result[++ri] = ci;
+            }
+        }
+        return result;
+    }
+
+    function byPseudo(cs, name, value){
+        return Ext.DomQuery.pseudos[name](cs, value);
+    }
+
+    function nodupIEXml(cs){
+        var d = ++key,
+            r;
+        cs[0].setAttribute("_nodup", d);
+        r = [cs[0]];
+        for(var i = 1, len = cs.length; i < len; i++){
+            var c = cs[i];
+            if(!c.getAttribute("_nodup") != d){
+                c.setAttribute("_nodup", d);
+                r[r.length] = c;
+            }
+        }
+        for(var i = 0, len = cs.length; i < len; i++){
+            cs[i].removeAttribute("_nodup");
+        }
+        return r;
+    }
+
+    function nodup(cs){
+        if(!cs){
+            return [];
+        }
+        var len = cs.length, c, i, r = cs, cj, ri = -1;
+        if(!len || typeof cs.nodeType != "undefined" || len == 1){
+            return cs;
+        }
+        if(isIE && typeof cs[0].selectSingleNode != "undefined"){
+            return nodupIEXml(cs);
+        }
+        var d = ++key;
+        cs[0]._nodup = d;
+        for(i = 1; c = cs[i]; i++){
+            if(c._nodup != d){
+                c._nodup = d;
+            }else{
+                r = [];
+                for(var j = 0; j < i; j++){
+                    r[++ri] = cs[j];
+                }
+                for(j = i+1; cj = cs[j]; j++){
+                    if(cj._nodup != d){
+                        cj._nodup = d;
+                        r[++ri] = cj;
+                    }
+                }
+                return r;
+            }
+        }
+        return r;
+    }
+
+    function quickDiffIEXml(c1, c2){
+        var d = ++key,
+            r = [];
+        for(var i = 0, len = c1.length; i < len; i++){
+            c1[i].setAttribute("_qdiff", d);
+        }
+        for(var i = 0, len = c2.length; i < len; i++){
+            if(c2[i].getAttribute("_qdiff") != d){
+                r[r.length] = c2[i];
+            }
+        }
+        for(var i = 0, len = c1.length; i < len; i++){
+           c1[i].removeAttribute("_qdiff");
+        }
+        return r;
+    }
+
+    function quickDiff(c1, c2){
+        var len1 = c1.length,
+            d = ++key,
+            r = [];
+        if(!len1){
+            return c2;
+        }
+        if(isIE && typeof c1[0].selectSingleNode != "undefined"){
+            return quickDiffIEXml(c1, c2);
+        }
+        for(var i = 0; i < len1; i++){
+            c1[i]._qdiff = d;
+        }
+        for(var i = 0, len = c2.length; i < len; i++){
+            if(c2[i]._qdiff != d){
+                r[r.length] = c2[i];
+            }
+        }
+        return r;
+    }
+
+    function quickId(ns, mode, root, id){
+        if(ns == root){
+           var d = root.ownerDocument || root;
+           return d.getElementById(id);
+        }
+        ns = getNodes(ns, mode, "*");
+        return byId(ns, id);
+    }
+
+    return {
+        getStyle : function(el, name){
+            return Ext.fly(el).getStyle(name);
+        },
+        /**
+         * Compiles a selector/xpath query into a reusable function. The returned function
+         * takes one parameter "root" (optional), which is the context node from where the query should start.
+         * @param {String} selector The selector/xpath query
+         * @param {String} type (optional) Either "select" (the default) or "simple" for a simple selector match
+         * @return {Function}
+         */
+        compile : function(path, type){
+            type = type || "select";
+
+            // setup fn preamble
+            var fn = ["var f = function(root){\n var mode; ++batch; var n = root || document;\n"],
+                mode,
+                lastPath,
+                matchers = Ext.DomQuery.matchers,
+                matchersLn = matchers.length,
+                modeMatch,
+                // accept leading mode switch
+                lmode = path.match(modeRe);
+
+            if(lmode && lmode[1]){
+                fn[fn.length] = 'mode="'+lmode[1].replace(trimRe, "")+'";';
+                path = path.replace(lmode[1], "");
+            }
+
+            // strip leading slashes
+            while(path.substr(0, 1)=="/"){
+                path = path.substr(1);
+            }
+
+            while(path && lastPath != path){
+                lastPath = path;
+                var tokenMatch = path.match(tagTokenRe);
+                if(type == "select"){
+                    if(tokenMatch){
+                        // ID Selector
+                        if(tokenMatch[1] == "#"){
+                            fn[fn.length] = 'n = quickId(n, mode, root, "'+tokenMatch[2]+'");';
+                        }else{
+                            fn[fn.length] = 'n = getNodes(n, mode, "'+tokenMatch[2]+'");';
+                        }
+                        path = path.replace(tokenMatch[0], "");
+                    }else if(path.substr(0, 1) != '@'){
+                        fn[fn.length] = 'n = getNodes(n, mode, "*");';
+                    }
+                // type of "simple"
+                }else{
+                    if(tokenMatch){
+                        if(tokenMatch[1] == "#"){
+                            fn[fn.length] = 'n = byId(n, "'+tokenMatch[2]+'");';
+                        }else{
+                            fn[fn.length] = 'n = byTag(n, "'+tokenMatch[2]+'");';
+                        }
+                        path = path.replace(tokenMatch[0], "");
+                    }
+                }
+                while(!(modeMatch = path.match(modeRe))){
+                    var matched = false;
+                    for(var j = 0; j < matchersLn; j++){
+                        var t = matchers[j];
+                        var m = path.match(t.re);
+                        if(m){
+                            fn[fn.length] = t.select.replace(tplRe, function(x, i){
+                                return m[i];
+                            });
+                            path = path.replace(m[0], "");
+                            matched = true;
+                            break;
+                        }
+                    }
+                    // prevent infinite loop on bad selector
+                    if(!matched){
+                        //<debug>
+                        Ext.Error.raise({
+                            sourceClass: 'Ext.DomQuery',
+                            sourceMethod: 'compile',
+                            msg: 'Error parsing selector. Parsing failed at "' + path + '"'
+                        });
+                        //</debug>
+                    }
+                }
+                if(modeMatch[1]){
+                    fn[fn.length] = 'mode="'+modeMatch[1].replace(trimRe, "")+'";';
+                    path = path.replace(modeMatch[1], "");
+                }
+            }
+            // close fn out
+            fn[fn.length] = "return nodup(n);\n}";
+
+            // eval fn and return it
+            eval(fn.join(""));
+            return f;
+        },
+
+        /**
+         * Selects an array of DOM nodes using JavaScript-only implementation.
+         *
+         * Use {@link #select} to take advantage of browsers built-in support for CSS selectors.
+         *
+         * @param {String} selector The selector/xpath query (can be a comma separated list of selectors)
+         * @param {Node/String} root (optional) The start of the query (defaults to document).
+         * @return {Array} An Array of DOM elements which match the selector. If there are
+         * no matches, and empty Array is returned.
+         */
+        jsSelect: function(path, root, type){
+            // set root to doc if not specified.
+            root = root || document;
+
+            if(typeof root == "string"){
+                root = document.getElementById(root);
+            }
+            var paths = path.split(","),
+                results = [];
+
+            // loop over each selector
+            for(var i = 0, len = paths.length; i < len; i++){
+                var subPath = paths[i].replace(trimRe, "");
+                // compile and place in cache
+                if(!cache[subPath]){
+                    cache[subPath] = Ext.DomQuery.compile(subPath);
+                    if(!cache[subPath]){
+                        //<debug>
+                        Ext.Error.raise({
+                            sourceClass: 'Ext.DomQuery',
+                            sourceMethod: 'jsSelect',
+                            msg: subPath + ' is not a valid selector'
+                        });
+                        //</debug>
+                    }
+                }
+                var result = cache[subPath](root);
+                if(result && result != document){
+                    results = results.concat(result);
+                }
+            }
+
+            // if there were multiple selectors, make sure dups
+            // are eliminated
+            if(paths.length > 1){
+                return nodup(results);
+            }
+            return results;
+        },
+
+        isXml: function(el) {
+            var docEl = (el ? el.ownerDocument || el : 0).documentElement;
+            return docEl ? docEl.nodeName !== "HTML" : false;
+        },
+
+        /**
+         * Selects an array of DOM nodes by CSS/XPath selector.
+         *
+         * Uses [document.querySelectorAll][0] if browser supports that, otherwise falls back to
+         * {@link #jsSelect} to do the work.
+         * 
+         * Aliased as {@link Ext#query}.
+         * 
+         * [0]: https://developer.mozilla.org/en/DOM/document.querySelectorAll
+         *
+         * @param {String} path The selector/xpath query
+         * @param {Node} root (optional) The start of the query (defaults to document).
+         * @return {Array} An array of DOM elements (not a NodeList as returned by `querySelectorAll`).
+         * Empty array when no matches.
+         * @method
+         */
+        select : document.querySelectorAll ? function(path, root, type) {
+            root = root || document;
+            if (!Ext.DomQuery.isXml(root)) {
+            try {
+                var cs = root.querySelectorAll(path);
+                return Ext.Array.toArray(cs);
+            }
+            catch (ex) {}
+            }
+            return Ext.DomQuery.jsSelect.call(this, path, root, type);
+        } : function(path, root, type) {
+            return Ext.DomQuery.jsSelect.call(this, path, root, type);
+        },
+
+        /**
+         * Selects a single element.
+         * @param {String} selector The selector/xpath query
+         * @param {Node} root (optional) The start of the query (defaults to document).
+         * @return {Element} The DOM element which matched the selector.
+         */
+        selectNode : function(path, root){
+            return Ext.DomQuery.select(path, root)[0];
+        },
+
+        /**
+         * Selects the value of a node, optionally replacing null with the defaultValue.
+         * @param {String} selector The selector/xpath query
+         * @param {Node} root (optional) The start of the query (defaults to document).
+         * @param {String} defaultValue
+         * @return {String}
+         */
+        selectValue : function(path, root, defaultValue){
+            path = path.replace(trimRe, "");
+            if(!valueCache[path]){
+                valueCache[path] = Ext.DomQuery.compile(path, "select");
+            }
+            var n = valueCache[path](root), v;
+            n = n[0] ? n[0] : n;
+
+            // overcome a limitation of maximum textnode size
+            // Rumored to potentially crash IE6 but has not been confirmed.
+            // http://reference.sitepoint.com/javascript/Node/normalize
+            // https://developer.mozilla.org/En/DOM/Node.normalize
+            if (typeof n.normalize == 'function') n.normalize();
+
+            v = (n && n.firstChild ? n.firstChild.nodeValue : null);
+            return ((v === null||v === undefined||v==='') ? defaultValue : v);
+        },
+
+        /**
+         * Selects the value of a node, parsing integers and floats. Returns the defaultValue, or 0 if none is specified.
+         * @param {String} selector The selector/xpath query
+         * @param {Node} root (optional) The start of the query (defaults to document).
+         * @param {Number} defaultValue
+         * @return {Number}
+         */
+        selectNumber : function(path, root, defaultValue){
+            var v = Ext.DomQuery.selectValue(path, root, defaultValue || 0);
+            return parseFloat(v);
+        },
+
+        /**
+         * Returns true if the passed element(s) match the passed simple selector (e.g. div.some-class or span:first-child)
+         * @param {String/HTMLElement/Array} el An element id, element or array of elements
+         * @param {String} selector The simple selector to test
+         * @return {Boolean}
+         */
+        is : function(el, ss){
+            if(typeof el == "string"){
+                el = document.getElementById(el);
+            }
+            var isArray = Ext.isArray(el),
+                result = Ext.DomQuery.filter(isArray ? el : [el], ss);
+            return isArray ? (result.length == el.length) : (result.length > 0);
+        },
+
+        /**
+         * Filters an array of elements to only include matches of a simple selector (e.g. div.some-class or span:first-child)
+         * @param {Array} el An array of elements to filter
+         * @param {String} selector The simple selector to test
+         * @param {Boolean} nonMatches If true, it returns the elements that DON'T match
+         * the selector instead of the ones that match
+         * @return {Array} An Array of DOM elements which match the selector. If there are
+         * no matches, and empty Array is returned.
+         */
+        filter : function(els, ss, nonMatches){
+            ss = ss.replace(trimRe, "");
+            if(!simpleCache[ss]){
+                simpleCache[ss] = Ext.DomQuery.compile(ss, "simple");
+            }
+            var result = simpleCache[ss](els);
+            return nonMatches ? quickDiff(result, els) : result;
+        },
+
+        /**
+         * Collection of matching regular expressions and code snippets.
+         * Each capture group within () will be replace the {} in the select
+         * statement as specified by their index.
+         */
+        matchers : [{
+                re: /^\.([\w-]+)/,
+                select: 'n = byClassName(n, " {1} ");'
+            }, {
+                re: /^\:([\w-]+)(?:\(((?:[^\s>\/]*|.*?))\))?/,
+                select: 'n = byPseudo(n, "{1}", "{2}");'
+            },{
+                re: /^(?:([\[\{])(?:@)?([\w-]+)\s?(?:(=|.=)\s?['"]?(.*?)["']?)?[\]\}])/,
+                select: 'n = byAttribute(n, "{2}", "{4}", "{3}", "{1}");'
+            }, {
+                re: /^#([\w-]+)/,
+                select: 'n = byId(n, "{1}");'
+            },{
+                re: /^@([\w-]+)/,
+                select: 'return {firstChild:{nodeValue:attrValue(n, "{1}")}};'
+            }
+        ],
+
+        /**
+         * Collection of operator comparison functions. The default operators are =, !=, ^=, $=, *=, %=, |= and ~=.
+         * New operators can be added as long as the match the format <i>c</i>= where <i>c</i> is any character other than space, &gt; &lt;.
+         */
+        operators : {
+            "=" : function(a, v){
+                return a == v;
+            },
+            "!=" : function(a, v){
+                return a != v;
+            },
+            "^=" : function(a, v){
+                return a && a.substr(0, v.length) == v;
+            },
+            "$=" : function(a, v){
+                return a && a.substr(a.length-v.length) == v;
+            },
+            "*=" : function(a, v){
+                return a && a.indexOf(v) !== -1;
+            },
+            "%=" : function(a, v){
+                return (a % v) == 0;
+            },
+            "|=" : function(a, v){
+                return a && (a == v || a.substr(0, v.length+1) == v+'-');
+            },
+            "~=" : function(a, v){
+                return a && (' '+a+' ').indexOf(' '+v+' ') != -1;
+            }
+        },
+
+        /**
+Object hash of "pseudo class" filter functions which are used when filtering selections. 
+Each function is passed two parameters:
+
+- **c** : Array
+    An Array of DOM elements to filter.
+    
+- **v** : String
+    The argument (if any) supplied in the selector.
+
+A filter function returns an Array of DOM elements which conform to the pseudo class.
+In addition to the provided pseudo classes listed above such as `first-child` and `nth-child`,
+developers may add additional, custom psuedo class filters to select elements according to application-specific requirements.
+
+For example, to filter `a` elements to only return links to __external__ resources:
+
+    Ext.DomQuery.pseudos.external = function(c, v){
+        var r = [], ri = -1;
+        for(var i = 0, ci; ci = c[i]; i++){
+            // Include in result set only if it's a link to an external resource
+            if(ci.hostname != location.hostname){
+                r[++ri] = ci;
+            }
+        }
+        return r;
+    };
+
+Then external links could be gathered with the following statement:
+
+    var externalLinks = Ext.select("a:external");
+
+        * @markdown
+        */
+        pseudos : {
+            "first-child" : function(c){
+                var r = [], ri = -1, n;
+                for(var i = 0, ci; ci = n = c[i]; i++){
+                    while((n = n.previousSibling) && n.nodeType != 1);
+                    if(!n){
+                        r[++ri] = ci;
+                    }
+                }
+                return r;
+            },
+
+            "last-child" : function(c){
+                var r = [], ri = -1, n;
+                for(var i = 0, ci; ci = n = c[i]; i++){
+                    while((n = n.nextSibling) && n.nodeType != 1);
+                    if(!n){
+                        r[++ri] = ci;
+                    }
+                }
+                return r;
+            },
+
+            "nth-child" : function(c, a) {
+                var r = [], ri = -1,
+                    m = nthRe.exec(a == "even" && "2n" || a == "odd" && "2n+1" || !nthRe2.test(a) && "n+" + a || a),
+                    f = (m[1] || 1) - 0, l = m[2] - 0;
+                for(var i = 0, n; n = c[i]; i++){
+                    var pn = n.parentNode;
+                    if (batch != pn._batch) {
+                        var j = 0;
+                        for(var cn = pn.firstChild; cn; cn = cn.nextSibling){
+                            if(cn.nodeType == 1){
+                               cn.nodeIndex = ++j;
+                            }
+                        }
+                        pn._batch = batch;
+                    }
+                    if (f == 1) {
+                        if (l == 0 || n.nodeIndex == l){
+                            r[++ri] = n;
+                        }
+                    } else if ((n.nodeIndex + l) % f == 0){
+                        r[++ri] = n;
+                    }
+                }
+
+                return r;
+            },
+
+            "only-child" : function(c){
+                var r = [], ri = -1;;
+                for(var i = 0, ci; ci = c[i]; i++){
+                    if(!prev(ci) && !next(ci)){
+                        r[++ri] = ci;
+                    }
+                }
+                return r;
+            },
+
+            "empty" : function(c){
+                var r = [], ri = -1;
+                for(var i = 0, ci; ci = c[i]; i++){
+                    var cns = ci.childNodes, j = 0, cn, empty = true;
+                    while(cn = cns[j]){
+                        ++j;
+                        if(cn.nodeType == 1 || cn.nodeType == 3){
+                            empty = false;
+                            break;
+                        }
+                    }
+                    if(empty){
+                        r[++ri] = ci;
+                    }
+                }
+                return r;
+            },
+
+            "contains" : function(c, v){
+                var r = [], ri = -1;
+                for(var i = 0, ci; ci = c[i]; i++){
+                    if((ci.textContent||ci.innerText||'').indexOf(v) != -1){
+                        r[++ri] = ci;
+                    }
+                }
+                return r;
+            },
+
+            "nodeValue" : function(c, v){
+                var r = [], ri = -1;
+                for(var i = 0, ci; ci = c[i]; i++){
+                    if(ci.firstChild && ci.firstChild.nodeValue == v){
+                        r[++ri] = ci;
+                    }
+                }
+                return r;
+            },
+
+            "checked" : function(c){
+                var r = [], ri = -1;
+                for(var i = 0, ci; ci = c[i]; i++){
+                    if(ci.checked == true){
+                        r[++ri] = ci;
+                    }
+                }
+                return r;
+            },
+
+            "not" : function(c, ss){
+                return Ext.DomQuery.filter(c, ss, true);
+            },
+
+            "any" : function(c, selectors){
+                var ss = selectors.split('|'),
+                    r = [], ri = -1, s;
+                for(var i = 0, ci; ci = c[i]; i++){
+                    for(var j = 0; s = ss[j]; j++){
+                        if(Ext.DomQuery.is(ci, s)){
+                            r[++ri] = ci;
+                            break;
+                        }
+                    }
+                }
+                return r;
+            },
+
+            "odd" : function(c){
+                return this["nth-child"](c, "odd");
+            },
+
+            "even" : function(c){
+                return this["nth-child"](c, "even");
+            },
+
+            "nth" : function(c, a){
+                return c[a-1] || [];
+            },
+
+            "first" : function(c){
+                return c[0] || [];
+            },
+
+            "last" : function(c){
+                return c[c.length-1] || [];
+            },
+
+            "has" : function(c, ss){
+                var s = Ext.DomQuery.select,
+                    r = [], ri = -1;
+                for(var i = 0, ci; ci = c[i]; i++){
+                    if(s(ss, ci).length > 0){
+                        r[++ri] = ci;
+                    }
+                }
+                return r;
+            },
+
+            "next" : function(c, ss){
+                var is = Ext.DomQuery.is,
+                    r = [], ri = -1;
+                for(var i = 0, ci; ci = c[i]; i++){
+                    var n = next(ci);
+                    if(n && is(n, ss)){
+                        r[++ri] = ci;
+                    }
+                }
+                return r;
+            },
+
+            "prev" : function(c, ss){
+                var is = Ext.DomQuery.is,
+                    r = [], ri = -1;
+                for(var i = 0, ci; ci = c[i]; i++){
+                    var n = prev(ci);
+                    if(n && is(n, ss)){
+                        r[++ri] = ci;
+                    }
+                }
+                return r;
+            }
+        }
+    };
+}();
+
+/**
+ * Selects an array of DOM nodes by CSS/XPath selector. Shorthand of {@link Ext.DomQuery#select}
+ * @param {String} path The selector/xpath query
+ * @param {Node} root (optional) The start of the query (defaults to document).
+ * @return {Array}
+ * @member Ext
+ * @method query
+ */
+Ext.query = Ext.DomQuery.select;
 
 
-
\ No newline at end of file
+