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Update built-in version of Sizzle to latest revision.

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commit 2a6914089ad6f0b398d9f4ef7032e6bab818dd51 1 parent f9d7c67
@savetheclocktower savetheclocktower authored
Showing with 680 additions and 282 deletions.
  1. +680 −282 src/sizzle.js
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962 src/sizzle.js
@@ -1,29 +1,33 @@
/*!
- * Sizzle CSS Selector Engine - v1.0
- * Copyright 2009, The Dojo Foundation
+ * Sizzle CSS Selector Engine
+ * Copyright 2011, The Dojo Foundation
* Released under the MIT, BSD, and GPL Licenses.
* More information: http://sizzlejs.com/
*/
(function(){
-var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]*\]|['"][^'"]*['"]|[^[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?((?:.|\r|\n)*)/g,
+var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^\[\]]*\]|['"][^'"]*['"]|[^\[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?((?:.|\r|\n)*)/g,
done = 0,
toString = Object.prototype.toString,
hasDuplicate = false,
- baseHasDuplicate = true;
+ baseHasDuplicate = true,
+ rBackslash = /\\/g,
+ rNonWord = /\W/;
// Here we check if the JavaScript engine is using some sort of
// optimization where it does not always call our comparision
// function. If that is the case, discard the hasDuplicate value.
// Thus far that includes Google Chrome.
-[0, 0].sort(function(){
+[0, 0].sort(function() {
baseHasDuplicate = false;
return 0;
});
-var Sizzle = function(selector, context, results, seed) {
+var Sizzle = function( selector, context, results, seed ) {
results = results || [];
- var origContext = context = context || document;
+ context = context || document;
+
+ var origContext = context;
if ( context.nodeType !== 1 && context.nodeType !== 9 ) {
return [];
@@ -33,24 +37,34 @@ var Sizzle = function(selector, context, results, seed) {
return results;
}
- var parts = [], m, set, checkSet, check, mode, extra, prune = true, contextXML = isXML(context),
+ var m, set, checkSet, extra, ret, cur, pop, i,
+ prune = true,
+ contextXML = Sizzle.isXML( context ),
+ parts = [],
soFar = selector;
// Reset the position of the chunker regexp (start from head)
- while ( (chunker.exec(""), m = chunker.exec(soFar)) !== null ) {
- soFar = m[3];
+ do {
+ chunker.exec( "" );
+ m = chunker.exec( soFar );
+
+ if ( m ) {
+ soFar = m[3];
- parts.push( m[1] );
+ parts.push( m[1] );
- if ( m[2] ) {
- extra = m[3];
- break;
+ if ( m[2] ) {
+ extra = m[3];
+ break;
+ }
}
- }
+ } while ( m );
if ( parts.length > 1 && origPOS.exec( selector ) ) {
+
if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
set = posProcess( parts[0] + parts[1], context );
+
} else {
set = Expr.relative[ parts[0] ] ?
[ context ] :
@@ -59,35 +73,45 @@ var Sizzle = function(selector, context, results, seed) {
while ( parts.length ) {
selector = parts.shift();
- if ( Expr.relative[ selector ] )
+ if ( Expr.relative[ selector ] ) {
selector += parts.shift();
-
+ }
+
set = posProcess( selector, set );
}
}
+
} else {
// Take a shortcut and set the context if the root selector is an ID
// (but not if it'll be faster if the inner selector is an ID)
if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {
- var ret = Sizzle.find( parts.shift(), context, contextXML );
- context = ret.expr ? Sizzle.filter( ret.expr, ret.set )[0] : ret.set[0];
+
+ ret = Sizzle.find( parts.shift(), context, contextXML );
+ context = ret.expr ?
+ Sizzle.filter( ret.expr, ret.set )[0] :
+ ret.set[0];
}
if ( context ) {
- var ret = seed ?
+ ret = seed ?
{ expr: parts.pop(), set: makeArray(seed) } :
Sizzle.find( parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML );
- set = ret.expr ? Sizzle.filter( ret.expr, ret.set ) : ret.set;
+
+ set = ret.expr ?
+ Sizzle.filter( ret.expr, ret.set ) :
+ ret.set;
if ( parts.length > 0 ) {
- checkSet = makeArray(set);
+ checkSet = makeArray( set );
+
} else {
prune = false;
}
while ( parts.length ) {
- var cur = parts.pop(), pop = cur;
+ cur = parts.pop();
+ pop = cur;
if ( !Expr.relative[ cur ] ) {
cur = "";
@@ -101,6 +125,7 @@ var Sizzle = function(selector, context, results, seed) {
Expr.relative[ cur ]( checkSet, pop, contextXML );
}
+
} else {
checkSet = parts = [];
}
@@ -111,25 +136,28 @@ var Sizzle = function(selector, context, results, seed) {
}
if ( !checkSet ) {
- throw "Syntax error, unrecognized expression: " + (cur || selector);
+ Sizzle.error( cur || selector );
}
if ( toString.call(checkSet) === "[object Array]" ) {
if ( !prune ) {
results.push.apply( results, checkSet );
+
} else if ( context && context.nodeType === 1 ) {
- for ( var i = 0; checkSet[i] != null; i++ ) {
- if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
+ for ( i = 0; checkSet[i] != null; i++ ) {
+ if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && Sizzle.contains(context, checkSet[i])) ) {
results.push( set[i] );
}
}
+
} else {
- for ( var i = 0; checkSet[i] != null; i++ ) {
+ for ( i = 0; checkSet[i] != null; i++ ) {
if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
results.push( set[i] );
}
}
}
+
} else {
makeArray( checkSet, results );
}
@@ -142,15 +170,15 @@ var Sizzle = function(selector, context, results, seed) {
return results;
};
-Sizzle.uniqueSort = function(results){
+Sizzle.uniqueSort = function( results ) {
if ( sortOrder ) {
hasDuplicate = baseHasDuplicate;
- results.sort(sortOrder);
+ results.sort( sortOrder );
if ( hasDuplicate ) {
for ( var i = 1; i < results.length; i++ ) {
- if ( results[i] === results[i-1] ) {
- results.splice(i--, 1);
+ if ( results[i] === results[ i - 1 ] ) {
+ results.splice( i--, 1 );
}
}
}
@@ -159,27 +187,33 @@ Sizzle.uniqueSort = function(results){
return results;
};
-Sizzle.matches = function(expr, set){
- return Sizzle(expr, null, null, set);
+Sizzle.matches = function( expr, set ) {
+ return Sizzle( expr, null, null, set );
+};
+
+Sizzle.matchesSelector = function( node, expr ) {
+ return Sizzle( expr, null, null, [node] ).length > 0;
};
-Sizzle.find = function(expr, context, isXML){
- var set, match;
+Sizzle.find = function( expr, context, isXML ) {
+ var set;
if ( !expr ) {
return [];
}
for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
- var type = Expr.order[i], match;
+ var match,
+ type = Expr.order[i];
if ( (match = Expr.leftMatch[ type ].exec( expr )) ) {
var left = match[1];
- match.splice(1,1);
+ match.splice( 1, 1 );
if ( left.substr( left.length - 1 ) !== "\\" ) {
- match[1] = (match[1] || "").replace(/\\/g, "");
+ match[1] = (match[1] || "").replace( rBackslash, "" );
set = Expr.find[ type ]( match, context, isXML );
+
if ( set != null ) {
expr = expr.replace( Expr.match[ type ], "" );
break;
@@ -189,23 +223,37 @@ Sizzle.find = function(expr, context, isXML){
}
if ( !set ) {
- set = context.getElementsByTagName("*");
+ set = typeof context.getElementsByTagName !== "undefined" ?
+ context.getElementsByTagName( "*" ) :
+ [];
}
- return {set: set, expr: expr};
+ return { set: set, expr: expr };
};
-Sizzle.filter = function(expr, set, inplace, not){
- var old = expr, result = [], curLoop = set, match, anyFound,
- isXMLFilter = set && set[0] && isXML(set[0]);
+Sizzle.filter = function( expr, set, inplace, not ) {
+ var match, anyFound,
+ old = expr,
+ result = [],
+ curLoop = set,
+ isXMLFilter = set && set[0] && Sizzle.isXML( set[0] );
while ( expr && set.length ) {
for ( var type in Expr.filter ) {
- if ( (match = Expr.match[ type ].exec( expr )) != null ) {
- var filter = Expr.filter[ type ], found, item;
+ if ( (match = Expr.leftMatch[ type ].exec( expr )) != null && match[2] ) {
+ var found, item,
+ filter = Expr.filter[ type ],
+ left = match[1];
+
anyFound = false;
- if ( curLoop == result ) {
+ match.splice(1,1);
+
+ if ( left.substr( left.length - 1 ) === "\\" ) {
+ continue;
+ }
+
+ if ( curLoop === result ) {
result = [];
}
@@ -214,6 +262,7 @@ Sizzle.filter = function(expr, set, inplace, not){
if ( !match ) {
anyFound = found = true;
+
} else if ( match === true ) {
continue;
}
@@ -228,9 +277,11 @@ Sizzle.filter = function(expr, set, inplace, not){
if ( inplace && found != null ) {
if ( pass ) {
anyFound = true;
+
} else {
curLoop[i] = false;
}
+
} else if ( pass ) {
result.push( item );
anyFound = true;
@@ -256,9 +307,10 @@ Sizzle.filter = function(expr, set, inplace, not){
}
// Improper expression
- if ( expr == old ) {
+ if ( expr === old ) {
if ( anyFound == null ) {
- throw "Syntax error, unrecognized expression: " + expr;
+ Sizzle.error( expr );
+
} else {
break;
}
@@ -270,43 +322,55 @@ Sizzle.filter = function(expr, set, inplace, not){
return curLoop;
};
+Sizzle.error = function( msg ) {
+ throw "Syntax error, unrecognized expression: " + msg;
+};
+
var Expr = Sizzle.selectors = {
order: [ "ID", "NAME", "TAG" ],
+
match: {
- ID: /#((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
- CLASS: /\.((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
- NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF-]|\\.)+)['"]*\]/,
- ATTR: /\[\s*((?:[\w\u00c0-\uFFFF-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
- TAG: /^((?:[\w\u00c0-\uFFFF\*-]|\\.)+)/,
- CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
- POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
- PSEUDO: /:((?:[\w\u00c0-\uFFFF-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
+ ID: /#((?:[\w\u00c0-\uFFFF\-]|\\.)+)/,
+ CLASS: /\.((?:[\w\u00c0-\uFFFF\-]|\\.)+)/,
+ NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF\-]|\\.)+)['"]*\]/,
+ ATTR: /\[\s*((?:[\w\u00c0-\uFFFF\-]|\\.)+)\s*(?:(\S?=)\s*(?:(['"])(.*?)\3|(#?(?:[\w\u00c0-\uFFFF\-]|\\.)*)|)|)\s*\]/,
+ TAG: /^((?:[\w\u00c0-\uFFFF\*\-]|\\.)+)/,
+ CHILD: /:(only|nth|last|first)-child(?:\(\s*(even|odd|(?:[+\-]?\d+|(?:[+\-]?\d*)?n\s*(?:[+\-]\s*\d+)?))\s*\))?/,
+ POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^\-]|$)/,
+ PSEUDO: /:((?:[\w\u00c0-\uFFFF\-]|\\.)+)(?:\((['"]?)((?:\([^\)]+\)|[^\(\)]*)+)\2\))?/
},
+
leftMatch: {},
+
attrMap: {
"class": "className",
"for": "htmlFor"
},
+
attrHandle: {
- href: function(elem){
- return elem.getAttribute("href");
+ href: function( elem ) {
+ return elem.getAttribute( "href" );
+ },
+ type: function( elem ) {
+ return elem.getAttribute( "type" );
}
},
+
relative: {
- "+": function(checkSet, part, isXML){
+ "+": function(checkSet, part){
var isPartStr = typeof part === "string",
- isTag = isPartStr && !/\W/.test(part),
+ isTag = isPartStr && !rNonWord.test( part ),
isPartStrNotTag = isPartStr && !isTag;
- if ( isTag && !isXML ) {
- part = part.toUpperCase();
+ if ( isTag ) {
+ part = part.toLowerCase();
}
for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
if ( (elem = checkSet[i]) ) {
while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}
- checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ?
+ checkSet[i] = isPartStrNotTag || elem && elem.nodeName.toLowerCase() === part ?
elem || false :
elem === part;
}
@@ -316,22 +380,29 @@ var Expr = Sizzle.selectors = {
Sizzle.filter( part, checkSet, true );
}
},
- ">": function(checkSet, part, isXML){
- var isPartStr = typeof part === "string";
- if ( isPartStr && !/\W/.test(part) ) {
- part = isXML ? part : part.toUpperCase();
+ ">": function( checkSet, part ) {
+ var elem,
+ isPartStr = typeof part === "string",
+ i = 0,
+ l = checkSet.length;
+
+ if ( isPartStr && !rNonWord.test( part ) ) {
+ part = part.toLowerCase();
+
+ for ( ; i < l; i++ ) {
+ elem = checkSet[i];
- for ( var i = 0, l = checkSet.length; i < l; i++ ) {
- var elem = checkSet[i];
if ( elem ) {
var parent = elem.parentNode;
- checkSet[i] = parent.nodeName === part ? parent : false;
+ checkSet[i] = parent.nodeName.toLowerCase() === part ? parent : false;
}
}
+
} else {
- for ( var i = 0, l = checkSet.length; i < l; i++ ) {
- var elem = checkSet[i];
+ for ( ; i < l; i++ ) {
+ elem = checkSet[i];
+
if ( elem ) {
checkSet[i] = isPartStr ?
elem.parentNode :
@@ -344,37 +415,50 @@ var Expr = Sizzle.selectors = {
}
}
},
+
"": function(checkSet, part, isXML){
- var doneName = done++, checkFn = dirCheck;
+ var nodeCheck,
+ doneName = done++,
+ checkFn = dirCheck;
- if ( !/\W/.test(part) ) {
- var nodeCheck = part = isXML ? part : part.toUpperCase();
+ if ( typeof part === "string" && !rNonWord.test( part ) ) {
+ part = part.toLowerCase();
+ nodeCheck = part;
checkFn = dirNodeCheck;
}
- checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
+ checkFn( "parentNode", part, doneName, checkSet, nodeCheck, isXML );
},
- "~": function(checkSet, part, isXML){
- var doneName = done++, checkFn = dirCheck;
- if ( typeof part === "string" && !/\W/.test(part) ) {
- var nodeCheck = part = isXML ? part : part.toUpperCase();
+ "~": function( checkSet, part, isXML ) {
+ var nodeCheck,
+ doneName = done++,
+ checkFn = dirCheck;
+
+ if ( typeof part === "string" && !rNonWord.test( part ) ) {
+ part = part.toLowerCase();
+ nodeCheck = part;
checkFn = dirNodeCheck;
}
- checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
+ checkFn( "previousSibling", part, doneName, checkSet, nodeCheck, isXML );
}
},
+
find: {
- ID: function(match, context, isXML){
+ ID: function( match, context, isXML ) {
if ( typeof context.getElementById !== "undefined" && !isXML ) {
var m = context.getElementById(match[1]);
- return m ? [m] : [];
+ // Check parentNode to catch when Blackberry 4.6 returns
+ // nodes that are no longer in the document #6963
+ return m && m.parentNode ? [m] : [];
}
},
- NAME: function(match, context, isXML){
+
+ NAME: function( match, context ) {
if ( typeof context.getElementsByName !== "undefined" ) {
- var ret = [], results = context.getElementsByName(match[1]);
+ var ret = [],
+ results = context.getElementsByName( match[1] );
for ( var i = 0, l = results.length; i < l; i++ ) {
if ( results[i].getAttribute("name") === match[1] ) {
@@ -385,13 +469,16 @@ var Expr = Sizzle.selectors = {
return ret.length === 0 ? null : ret;
}
},
- TAG: function(match, context){
- return context.getElementsByTagName(match[1]);
+
+ TAG: function( match, context ) {
+ if ( typeof context.getElementsByTagName !== "undefined" ) {
+ return context.getElementsByTagName( match[1] );
+ }
}
},
preFilter: {
- CLASS: function(match, curLoop, inplace, result, not, isXML){
- match = " " + match[1].replace(/\\/g, "") + " ";
+ CLASS: function( match, curLoop, inplace, result, not, isXML ) {
+ match = " " + match[1].replace( rBackslash, "" ) + " ";
if ( isXML ) {
return match;
@@ -399,9 +486,11 @@ var Expr = Sizzle.selectors = {
for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
if ( elem ) {
- if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) {
- if ( !inplace )
+ if ( not ^ (elem.className && (" " + elem.className + " ").replace(/[\t\n\r]/g, " ").indexOf(match) >= 0) ) {
+ if ( !inplace ) {
result.push( elem );
+ }
+
} else if ( inplace ) {
curLoop[i] = false;
}
@@ -410,190 +499,271 @@ var Expr = Sizzle.selectors = {
return false;
},
- ID: function(match){
- return match[1].replace(/\\/g, "");
+
+ ID: function( match ) {
+ return match[1].replace( rBackslash, "" );
},
- TAG: function(match, curLoop){
- for ( var i = 0; curLoop[i] === false; i++ ){}
- return curLoop[i] && isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
+
+ TAG: function( match, curLoop ) {
+ return match[1].replace( rBackslash, "" ).toLowerCase();
},
- CHILD: function(match){
- if ( match[1] == "nth" ) {
+
+ CHILD: function( match ) {
+ if ( match[1] === "nth" ) {
+ if ( !match[2] ) {
+ Sizzle.error( match[0] );
+ }
+
+ match[2] = match[2].replace(/^\+|\s*/g, '');
+
// parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
- var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
- match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
+ var test = /(-?)(\d*)(?:n([+\-]?\d*))?/.exec(
+ match[2] === "even" && "2n" || match[2] === "odd" && "2n+1" ||
!/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
// calculate the numbers (first)n+(last) including if they are negative
match[2] = (test[1] + (test[2] || 1)) - 0;
match[3] = test[3] - 0;
}
+ else if ( match[2] ) {
+ Sizzle.error( match[0] );
+ }
// TODO: Move to normal caching system
match[0] = done++;
return match;
},
- ATTR: function(match, curLoop, inplace, result, not, isXML){
- var name = match[1].replace(/\\/g, "");
+
+ ATTR: function( match, curLoop, inplace, result, not, isXML ) {
+ var name = match[1] = match[1].replace( rBackslash, "" );
if ( !isXML && Expr.attrMap[name] ) {
match[1] = Expr.attrMap[name];
}
+ // Handle if an un-quoted value was used
+ match[4] = ( match[4] || match[5] || "" ).replace( rBackslash, "" );
+
if ( match[2] === "~=" ) {
match[4] = " " + match[4] + " ";
}
return match;
},
- PSEUDO: function(match, curLoop, inplace, result, not){
+
+ PSEUDO: function( match, curLoop, inplace, result, not ) {
if ( match[1] === "not" ) {
// If we're dealing with a complex expression, or a simple one
if ( ( chunker.exec(match[3]) || "" ).length > 1 || /^\w/.test(match[3]) ) {
match[3] = Sizzle(match[3], null, null, curLoop);
+
} else {
var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
+
if ( !inplace ) {
result.push.apply( result, ret );
}
+
return false;
}
+
} else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
return true;
}
return match;
},
- POS: function(match){
+
+ POS: function( match ) {
match.unshift( true );
+
return match;
}
},
+
filters: {
- enabled: function(elem){
+ enabled: function( elem ) {
return elem.disabled === false && elem.type !== "hidden";
},
- disabled: function(elem){
+
+ disabled: function( elem ) {
return elem.disabled === true;
},
- checked: function(elem){
+
+ checked: function( elem ) {
return elem.checked === true;
},
- selected: function(elem){
+
+ selected: function( elem ) {
// Accessing this property makes selected-by-default
// options in Safari work properly
- elem.parentNode.selectedIndex;
+ if ( elem.parentNode ) {
+ elem.parentNode.selectedIndex;
+ }
+
return elem.selected === true;
},
- parent: function(elem){
+
+ parent: function( elem ) {
return !!elem.firstChild;
},
- empty: function(elem){
+
+ empty: function( elem ) {
return !elem.firstChild;
},
- has: function(elem, i, match){
+
+ has: function( elem, i, match ) {
return !!Sizzle( match[3], elem ).length;
},
- header: function(elem){
- return /h\d/i.test( elem.nodeName );
+
+ header: function( elem ) {
+ return (/h\d/i).test( elem.nodeName );
},
- text: function(elem){
- return "text" === elem.type;
+
+ text: function( elem ) {
+ var attr = elem.getAttribute( "type" ), type = elem.type;
+ // IE6 and 7 will map elem.type to 'text' for new HTML5 types (search, etc)
+ // use getAttribute instead to test this case
+ return elem.nodeName.toLowerCase() === "input" && "text" === type && ( attr === type || attr === null );
},
- radio: function(elem){
- return "radio" === elem.type;
+
+ radio: function( elem ) {
+ return elem.nodeName.toLowerCase() === "input" && "radio" === elem.type;
},
- checkbox: function(elem){
- return "checkbox" === elem.type;
+
+ checkbox: function( elem ) {
+ return elem.nodeName.toLowerCase() === "input" && "checkbox" === elem.type;
},
- file: function(elem){
- return "file" === elem.type;
+
+ file: function( elem ) {
+ return elem.nodeName.toLowerCase() === "input" && "file" === elem.type;
+ },
+
+ password: function( elem ) {
+ return elem.nodeName.toLowerCase() === "input" && "password" === elem.type;
},
- password: function(elem){
- return "password" === elem.type;
+
+ submit: function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return (name === "input" || name === "button") && "submit" === elem.type;
},
- submit: function(elem){
- return "submit" === elem.type;
+
+ image: function( elem ) {
+ return elem.nodeName.toLowerCase() === "input" && "image" === elem.type;
},
- image: function(elem){
- return "image" === elem.type;
+
+ reset: function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return (name === "input" || name === "button") && "reset" === elem.type;
},
- reset: function(elem){
- return "reset" === elem.type;
+
+ button: function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return name === "input" && "button" === elem.type || name === "button";
},
- button: function(elem){
- return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
+
+ input: function( elem ) {
+ return (/input|select|textarea|button/i).test( elem.nodeName );
},
- input: function(elem){
- return /input|select|textarea|button/i.test(elem.nodeName);
+
+ focus: function( elem ) {
+ return elem === elem.ownerDocument.activeElement;
}
},
setFilters: {
- first: function(elem, i){
+ first: function( elem, i ) {
return i === 0;
},
- last: function(elem, i, match, array){
+
+ last: function( elem, i, match, array ) {
return i === array.length - 1;
},
- even: function(elem, i){
+
+ even: function( elem, i ) {
return i % 2 === 0;
},
- odd: function(elem, i){
+
+ odd: function( elem, i ) {
return i % 2 === 1;
},
- lt: function(elem, i, match){
+
+ lt: function( elem, i, match ) {
return i < match[3] - 0;
},
- gt: function(elem, i, match){
+
+ gt: function( elem, i, match ) {
return i > match[3] - 0;
},
- nth: function(elem, i, match){
- return match[3] - 0 == i;
+
+ nth: function( elem, i, match ) {
+ return match[3] - 0 === i;
},
- eq: function(elem, i, match){
- return match[3] - 0 == i;
+
+ eq: function( elem, i, match ) {
+ return match[3] - 0 === i;
}
},
filter: {
- PSEUDO: function(elem, match, i, array){
- var name = match[1], filter = Expr.filters[ name ];
+ PSEUDO: function( elem, match, i, array ) {
+ var name = match[1],
+ filter = Expr.filters[ name ];
if ( filter ) {
return filter( elem, i, match, array );
+
} else if ( name === "contains" ) {
- return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
+ return (elem.textContent || elem.innerText || Sizzle.getText([ elem ]) || "").indexOf(match[3]) >= 0;
+
} else if ( name === "not" ) {
var not = match[3];
- for ( var i = 0, l = not.length; i < l; i++ ) {
- if ( not[i] === elem ) {
+ for ( var j = 0, l = not.length; j < l; j++ ) {
+ if ( not[j] === elem ) {
return false;
}
}
return true;
+
+ } else {
+ Sizzle.error( name );
}
},
- CHILD: function(elem, match){
- var type = match[1], node = elem;
- switch (type) {
- case 'only':
- case 'first':
- while ( (node = node.previousSibling) ) {
- if ( node.nodeType === 1 ) return false;
+
+ CHILD: function( elem, match ) {
+ var type = match[1],
+ node = elem;
+
+ switch ( type ) {
+ case "only":
+ case "first":
+ while ( (node = node.previousSibling) ) {
+ if ( node.nodeType === 1 ) {
+ return false;
+ }
}
- if ( type == 'first') return true;
+
+ if ( type === "first" ) {
+ return true;
+ }
+
node = elem;
- case 'last':
- while ( (node = node.nextSibling) ) {
- if ( node.nodeType === 1 ) return false;
+
+ case "last":
+ while ( (node = node.nextSibling) ) {
+ if ( node.nodeType === 1 ) {
+ return false;
+ }
}
+
return true;
- case 'nth':
- var first = match[2], last = match[3];
- if ( first == 1 && last == 0 ) {
+ case "nth":
+ var first = match[2],
+ last = match[3];
+
+ if ( first === 1 && last === 0 ) {
return true;
}
@@ -602,33 +772,41 @@ var Expr = Sizzle.selectors = {
if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {
var count = 0;
+
for ( node = parent.firstChild; node; node = node.nextSibling ) {
if ( node.nodeType === 1 ) {
node.nodeIndex = ++count;
}
}
+
parent.sizcache = doneName;
}
var diff = elem.nodeIndex - last;
- if ( first == 0 ) {
- return diff == 0;
+
+ if ( first === 0 ) {
+ return diff === 0;
+
} else {
- return ( diff % first == 0 && diff / first >= 0 );
+ return ( diff % first === 0 && diff / first >= 0 );
}
}
},
- ID: function(elem, match){
+
+ ID: function( elem, match ) {
return elem.nodeType === 1 && elem.getAttribute("id") === match;
},
- TAG: function(elem, match){
- return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
+
+ TAG: function( elem, match ) {
+ return (match === "*" && elem.nodeType === 1) || elem.nodeName.toLowerCase() === match;
},
- CLASS: function(elem, match){
+
+ CLASS: function( elem, match ) {
return (" " + (elem.className || elem.getAttribute("class")) + " ")
.indexOf( match ) > -1;
},
- ATTR: function(elem, match){
+
+ ATTR: function( elem, match ) {
var name = match[1],
result = Expr.attrHandle[ name ] ?
Expr.attrHandle[ name ]( elem ) :
@@ -650,7 +828,7 @@ var Expr = Sizzle.selectors = {
!check ?
value && result !== false :
type === "!=" ?
- value != check :
+ value !== check :
type === "^=" ?
value.indexOf(check) === 0 :
type === "$=" ?
@@ -659,8 +837,10 @@ var Expr = Sizzle.selectors = {
value === check || value.substr(0, check.length + 1) === check + "-" :
false;
},
- POS: function(elem, match, i, array){
- var name = match[2], filter = Expr.setFilters[ name ];
+
+ POS: function( elem, match, i, array ) {
+ var name = match[2],
+ filter = Expr.setFilters[ name ];
if ( filter ) {
return filter( elem, i, match, array );
@@ -669,14 +849,17 @@ var Expr = Sizzle.selectors = {
}
};
-var origPOS = Expr.match.POS;
+var origPOS = Expr.match.POS,
+ fescape = function(all, num){
+ return "\\" + (num - 0 + 1);
+ };
for ( var type in Expr.match ) {
- Expr.match[ type ] = new RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
- Expr.leftMatch[ type ] = new RegExp( /(^(?:.|\r|\n)*?)/.source + Expr.match[ type ].source );
+ Expr.match[ type ] = new RegExp( Expr.match[ type ].source + (/(?![^\[]*\])(?![^\(]*\))/.source) );
+ Expr.leftMatch[ type ] = new RegExp( /(^(?:.|\r|\n)*?)/.source + Expr.match[ type ].source.replace(/\\(\d+)/g, fescape) );
}
-var makeArray = function(array, results) {
+var makeArray = function( array, results ) {
array = Array.prototype.slice.call( array, 0 );
if ( results ) {
@@ -689,23 +872,28 @@ var makeArray = function(array, results) {
// Perform a simple check to determine if the browser is capable of
// converting a NodeList to an array using builtin methods.
+// Also verifies that the returned array holds DOM nodes
+// (which is not the case in the Blackberry browser)
try {
- Array.prototype.slice.call( document.documentElement.childNodes, 0 );
+ Array.prototype.slice.call( document.documentElement.childNodes, 0 )[0].nodeType;
// Provide a fallback method if it does not work
-} catch(e){
- makeArray = function(array, results) {
- var ret = results || [];
+} catch( e ) {
+ makeArray = function( array, results ) {
+ var i = 0,
+ ret = results || [];
if ( toString.call(array) === "[object Array]" ) {
Array.prototype.push.apply( ret, array );
+
} else {
if ( typeof array.length === "number" ) {
- for ( var i = 0, l = array.length; i < l; i++ ) {
+ for ( var l = array.length; i < l; i++ ) {
ret.push( array[i] );
}
+
} else {
- for ( var i = 0; array[i]; i++ ) {
+ for ( ; array[i]; i++ ) {
ret.push( array[i] );
}
}
@@ -715,90 +903,161 @@ try {
};
}
-var sortOrder;
+var sortOrder, siblingCheck;
if ( document.documentElement.compareDocumentPosition ) {
sortOrder = function( a, b ) {
- if ( !a.compareDocumentPosition || !b.compareDocumentPosition ) {
- if ( a == b ) {
- hasDuplicate = true;
- }
+ if ( a === b ) {
+ hasDuplicate = true;
return 0;
}
- var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
- if ( ret === 0 ) {
- hasDuplicate = true;
+ if ( !a.compareDocumentPosition || !b.compareDocumentPosition ) {
+ return a.compareDocumentPosition ? -1 : 1;
}
- return ret;
+
+ return a.compareDocumentPosition(b) & 4 ? -1 : 1;
};
-} else if ( "sourceIndex" in document.documentElement ) {
+
+} else {
sortOrder = function( a, b ) {
- if ( !a.sourceIndex || !b.sourceIndex ) {
- if ( a == b ) {
- hasDuplicate = true;
- }
+ // The nodes are identical, we can exit early
+ if ( a === b ) {
+ hasDuplicate = true;
return 0;
+
+ // Fallback to using sourceIndex (in IE) if it's available on both nodes
+ } else if ( a.sourceIndex && b.sourceIndex ) {
+ return a.sourceIndex - b.sourceIndex;
}
- var ret = a.sourceIndex - b.sourceIndex;
- if ( ret === 0 ) {
- hasDuplicate = true;
+ var al, bl,
+ ap = [],
+ bp = [],
+ aup = a.parentNode,
+ bup = b.parentNode,
+ cur = aup;
+
+ // If the nodes are siblings (or identical) we can do a quick check
+ if ( aup === bup ) {
+ return siblingCheck( a, b );
+
+ // If no parents were found then the nodes are disconnected
+ } else if ( !aup ) {
+ return -1;
+
+ } else if ( !bup ) {
+ return 1;
}
- return ret;
- };
-} else if ( document.createRange ) {
- sortOrder = function( a, b ) {
- if ( !a.ownerDocument || !b.ownerDocument ) {
- if ( a == b ) {
- hasDuplicate = true;
+
+ // Otherwise they're somewhere else in the tree so we need
+ // to build up a full list of the parentNodes for comparison
+ while ( cur ) {
+ ap.unshift( cur );
+ cur = cur.parentNode;
+ }
+
+ cur = bup;
+
+ while ( cur ) {
+ bp.unshift( cur );
+ cur = cur.parentNode;
+ }
+
+ al = ap.length;
+ bl = bp.length;
+
+ // Start walking down the tree looking for a discrepancy
+ for ( var i = 0; i < al && i < bl; i++ ) {
+ if ( ap[i] !== bp[i] ) {
+ return siblingCheck( ap[i], bp[i] );
}
- return 0;
}
- var aRange = a.ownerDocument.createRange(), bRange = b.ownerDocument.createRange();
- aRange.setStart(a, 0);
- aRange.setEnd(a, 0);
- bRange.setStart(b, 0);
- bRange.setEnd(b, 0);
- var ret = aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
- if ( ret === 0 ) {
- hasDuplicate = true;
+ // We ended someplace up the tree so do a sibling check
+ return i === al ?
+ siblingCheck( a, bp[i], -1 ) :
+ siblingCheck( ap[i], b, 1 );
+ };
+
+ siblingCheck = function( a, b, ret ) {
+ if ( a === b ) {
+ return ret;
}
- return ret;
+
+ var cur = a.nextSibling;
+
+ while ( cur ) {
+ if ( cur === b ) {
+ return -1;
+ }
+
+ cur = cur.nextSibling;
+ }
+
+ return 1;
};
}
+// Utility function for retreiving the text value of an array of DOM nodes
+Sizzle.getText = function( elems ) {
+ var ret = "", elem;
+
+ for ( var i = 0; elems[i]; i++ ) {
+ elem = elems[i];
+
+ // Get the text from text nodes and CDATA nodes
+ if ( elem.nodeType === 3 || elem.nodeType === 4 ) {
+ ret += elem.nodeValue;
+
+ // Traverse everything else, except comment nodes
+ } else if ( elem.nodeType !== 8 ) {
+ ret += Sizzle.getText( elem.childNodes );
+ }
+ }
+
+ return ret;
+};
+
// Check to see if the browser returns elements by name when
// querying by getElementById (and provide a workaround)
(function(){
// We're going to inject a fake input element with a specified name
var form = document.createElement("div"),
- id = "script" + (new Date).getTime();
+ id = "script" + (new Date()).getTime(),
+ root = document.documentElement;
+
form.innerHTML = "<a name='" + id + "'/>";
// Inject it into the root element, check its status, and remove it quickly
- var root = document.documentElement;
root.insertBefore( form, root.firstChild );
// The workaround has to do additional checks after a getElementById
// Which slows things down for other browsers (hence the branching)
- if ( !!document.getElementById( id ) ) {
- Expr.find.ID = function(match, context, isXML){
+ if ( document.getElementById( id ) ) {
+ Expr.find.ID = function( match, context, isXML ) {
if ( typeof context.getElementById !== "undefined" && !isXML ) {
var m = context.getElementById(match[1]);
- return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
+
+ return m ?
+ m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ?
+ [m] :
+ undefined :
+ [];
}
};
- Expr.filter.ID = function(elem, match){
+ Expr.filter.ID = function( elem, match ) {
var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
+
return elem.nodeType === 1 && node && node.nodeValue === match;
};
}
root.removeChild( form );
- root = form = null; // release memory in IE
+
+ // release memory in IE
+ root = form = null;
})();
(function(){
@@ -811,8 +1070,8 @@ if ( document.documentElement.compareDocumentPosition ) {
// Make sure no comments are found
if ( div.getElementsByTagName("*").length > 0 ) {
- Expr.find.TAG = function(match, context){
- var results = context.getElementsByTagName(match[1]);
+ Expr.find.TAG = function( match, context ) {
+ var results = context.getElementsByTagName( match[1] );
// Filter out possible comments
if ( match[1] === "*" ) {
@@ -833,83 +1092,209 @@ if ( document.documentElement.compareDocumentPosition ) {
// Check to see if an attribute returns normalized href attributes
div.innerHTML = "<a href='#'></a>";
+
if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
div.firstChild.getAttribute("href") !== "#" ) {
- Expr.attrHandle.href = function(elem){
- return elem.getAttribute("href", 2);
+
+ Expr.attrHandle.href = function( elem ) {
+ return elem.getAttribute( "href", 2 );
};
}
- div = null; // release memory in IE
+ // release memory in IE
+ div = null;
})();
-if ( document.querySelectorAll ) (function(){
- var oldSizzle = Sizzle, div = document.createElement("div");
- div.innerHTML = "<p class='TEST'></p>";
+if ( document.querySelectorAll ) {
+ (function(){
+ var oldSizzle = Sizzle,
+ div = document.createElement("div"),
+ id = "__sizzle__";
- // Safari can't handle uppercase or unicode characters when
- // in quirks mode.
- if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
- return;
- }
-
- Sizzle = function(query, context, extra, seed){
- context = context || document;
+ div.innerHTML = "<p class='TEST'></p>";
- // Only use querySelectorAll on non-XML documents
- // (ID selectors don't work in non-HTML documents)
- if ( !seed && context.nodeType === 9 && !isXML(context) ) {
- try {
- return makeArray( context.querySelectorAll(query), extra );
- } catch(e){}
+ // Safari can't handle uppercase or unicode characters when
+ // in quirks mode.
+ if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
+ return;
}
+
+ Sizzle = function( query, context, extra, seed ) {
+ context = context || document;
+
+ // Only use querySelectorAll on non-XML documents
+ // (ID selectors don't work in non-HTML documents)
+ if ( !seed && !Sizzle.isXML(context) ) {
+ // See if we find a selector to speed up
+ var match = /^(\w+$)|^\.([\w\-]+$)|^#([\w\-]+$)/.exec( query );
+
+ if ( match && (context.nodeType === 1 || context.nodeType === 9) ) {
+ // Speed-up: Sizzle("TAG")
+ if ( match[1] ) {
+ return makeArray( context.getElementsByTagName( query ), extra );
+
+ // Speed-up: Sizzle(".CLASS")
+ } else if ( match[2] && Expr.find.CLASS && context.getElementsByClassName ) {
+ return makeArray( context.getElementsByClassName( match[2] ), extra );
+ }
+ }
+
+ if ( context.nodeType === 9 ) {
+ // Speed-up: Sizzle("body")
+ // The body element only exists once, optimize finding it
+ if ( query === "body" && context.body ) {
+ return makeArray( [ context.body ], extra );
+
+ // Speed-up: Sizzle("#ID")
+ } else if ( match && match[3] ) {
+ var elem = context.getElementById( match[3] );
+
+ // Check parentNode to catch when Blackberry 4.6 returns
+ // nodes that are no longer in the document #6963
+ if ( elem && elem.parentNode ) {
+ // Handle the case where IE and Opera return items
+ // by name instead of ID
+ if ( elem.id === match[3] ) {
+ return makeArray( [ elem ], extra );
+ }
+
+ } else {
+ return makeArray( [], extra );
+ }
+ }
+
+ try {
+ return makeArray( context.querySelectorAll(query), extra );
+ } catch(qsaError) {}
+
+ // qSA works strangely on Element-rooted queries
+ // We can work around this by specifying an extra ID on the root
+ // and working up from there (Thanks to Andrew Dupont for the technique)
+ // IE 8 doesn't work on object elements
+ } else if ( context.nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
+ var oldContext = context,
+ old = context.getAttribute( "id" ),
+ nid = old || id,
+ hasParent = context.parentNode,
+ relativeHierarchySelector = /^\s*[+~]/.test( query );
+
+ if ( !old ) {
+ context.setAttribute( "id", nid );
+ } else {
+ nid = nid.replace( /'/g, "\\$&" );
+ }
+ if ( relativeHierarchySelector && hasParent ) {
+ context = context.parentNode;
+ }
+
+ try {
+ if ( !relativeHierarchySelector || hasParent ) {
+ return makeArray( context.querySelectorAll( "[id='" + nid + "'] " + query ), extra );
+ }
+
+ } catch(pseudoError) {
+ } finally {
+ if ( !old ) {
+ oldContext.removeAttribute( "id" );
+ }
+ }
+ }
+ }
- return oldSizzle(query, context, extra, seed);
- };
+ return oldSizzle(query, context, extra, seed);
+ };
- for ( var prop in oldSizzle ) {
- Sizzle[ prop ] = oldSizzle[ prop ];
- }
+ for ( var prop in oldSizzle ) {
+ Sizzle[ prop ] = oldSizzle[ prop ];
+ }
+
+ // release memory in IE
+ div = null;
+ })();
+}
- div = null; // release memory in IE
+(function(){
+ var html = document.documentElement,
+ matches = html.matchesSelector || html.mozMatchesSelector || html.webkitMatchesSelector || html.msMatchesSelector;
+
+ if ( matches ) {
+ // Check to see if it's possible to do matchesSelector
+ // on a disconnected node (IE 9 fails this)
+ var disconnectedMatch = !matches.call( document.createElement( "div" ), "div" ),
+ pseudoWorks = false;
+
+ try {
+ // This should fail with an exception
+ // Gecko does not error, returns false instead
+ matches.call( document.documentElement, "[test!='']:sizzle" );
+
+ } catch( pseudoError ) {
+ pseudoWorks = true;
+ }
+
+ Sizzle.matchesSelector = function( node, expr ) {
+ // Make sure that attribute selectors are quoted
+ expr = expr.replace(/\=\s*([^'"\]]*)\s*\]/g, "='$1']");
+
+ if ( !Sizzle.isXML( node ) ) {
+ try {
+ if ( pseudoWorks || !Expr.match.PSEUDO.test( expr ) && !/!=/.test( expr ) ) {
+ var ret = matches.call( node, expr );
+
+ // IE 9's matchesSelector returns false on disconnected nodes
+ if ( ret || !disconnectedMatch ||
+ // As well, disconnected nodes are said to be in a document
+ // fragment in IE 9, so check for that
+ node.document && node.document.nodeType !== 11 ) {
+ return ret;
+ }
+ }
+ } catch(e) {}
+ }
+
+ return Sizzle(expr, null, null, [node]).length > 0;
+ };
+ }
})();
-if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
+(function(){
var div = document.createElement("div");
+
div.innerHTML = "<div class='test e'></div><div class='test'></div>";
// Opera can't find a second classname (in 9.6)
- if ( div.getElementsByClassName("e").length === 0 )
+ // Also, make sure that getElementsByClassName actually exists
+ if ( !div.getElementsByClassName || div.getElementsByClassName("e").length === 0 ) {
return;
+ }
// Safari caches class attributes, doesn't catch changes (in 3.2)
div.lastChild.className = "e";
- if ( div.getElementsByClassName("e").length === 1 )
+ if ( div.getElementsByClassName("e").length === 1 ) {
return;
-
+ }
+
Expr.order.splice(1, 0, "CLASS");
- Expr.find.CLASS = function(match, context, isXML) {
+ Expr.find.CLASS = function( match, context, isXML ) {
if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
return context.getElementsByClassName(match[1]);
}
};
- div = null; // release memory in IE
+ // release memory in IE
+ div = null;
})();
function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
- var sibDir = dir == "previousSibling" && !isXML;
for ( var i = 0, l = checkSet.length; i < l; i++ ) {
var elem = checkSet[i];
+
if ( elem ) {
- if ( sibDir && elem.nodeType === 1 ){
- elem.sizcache = doneName;
- elem.sizset = i;
- }
- elem = elem[dir];
var match = false;
+ elem = elem[dir];
+
while ( elem ) {
if ( elem.sizcache === doneName ) {
match = checkSet[elem.sizset];
@@ -921,7 +1306,7 @@ function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
elem.sizset = i;
}
- if ( elem.nodeName === cur ) {
+ if ( elem.nodeName.toLowerCase() === cur ) {
match = elem;
break;
}
@@ -935,16 +1320,13 @@ function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
}
function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
- var sibDir = dir == "previousSibling" && !isXML;
for ( var i = 0, l = checkSet.length; i < l; i++ ) {
var elem = checkSet[i];
+
if ( elem ) {
- if ( sibDir && elem.nodeType === 1 ) {
- elem.sizcache = doneName;
- elem.sizset = i;
- }
- elem = elem[dir];
var match = false;
+
+ elem = elem[dir];
while ( elem ) {
if ( elem.sizcache === doneName ) {
@@ -957,6 +1339,7 @@ function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
elem.sizcache = doneName;
elem.sizset = i;
}
+
if ( typeof cur !== "string" ) {
if ( elem === cur ) {
match = true;
@@ -977,19 +1360,34 @@ function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
}
}
-var contains = document.compareDocumentPosition ? function(a, b){
- return a.compareDocumentPosition(b) & 16;
-} : function(a, b){
- return a !== b && (a.contains ? a.contains(b) : true);
-};
+if ( document.documentElement.contains ) {
+ Sizzle.contains = function( a, b ) {
+ return a !== b && (a.contains ? a.contains(b) : true);
+ };
+
+} else if ( document.documentElement.compareDocumentPosition ) {
+ Sizzle.contains = function( a, b ) {
+ return !!(a.compareDocumentPosition(b) & 16);
+ };
+
+} else {
+ Sizzle.contains = function() {
+ return false;
+ };
+}
+
+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 : 0).documentElement;
-var isXML = function(elem){
- return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
- !!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
+ return documentElement ? documentElement.nodeName !== "HTML" : false;
};
-var posProcess = function(selector, context){
- var tmpSet = [], later = "", match,
+var posProcess = function( selector, context ) {
+ var match,
+ tmpSet = [],
+ later = "",
root = context.nodeType ? [context] : context;
// Position selectors must be done after the filter
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