2 var chars = jQuery.browser.safari && parseInt(jQuery.browser.version) < 417 ?
\r
3 "(?:[\\w*_-]|\\\\.)" :
\r
4 "(?:[\\w\u0128-\uFFFF*_-]|\\\\.)",
\r
5 quickChild = new RegExp("^>\\s*(" + chars + "+)"),
\r
6 quickID = new RegExp("^(" + chars + "+)(#)(" + chars + "+)"),
\r
7 quickClass = new RegExp("^([#.]?)(" + chars + "*)");
\r
11 "": function(a,i,m){return m[2]=="*"||jQuery.nodeName(a,m[2]);},
\r
12 "#": function(a,i,m){return a.getAttribute("id")==m[2];},
\r
15 lt: function(a,i,m){return i<m[3]-0;},
\r
16 gt: function(a,i,m){return i>m[3]-0;},
\r
17 nth: function(a,i,m){return m[3]-0==i;},
\r
18 eq: function(a,i,m){return m[3]-0==i;},
\r
19 first: function(a,i){return i==0;},
\r
20 last: function(a,i,m,r){return i==r.length-1;},
\r
21 even: function(a,i){return i%2==0;},
\r
22 odd: function(a,i){return i%2;},
\r
25 "first-child": function(a){return a.parentNode.getElementsByTagName("*")[0]==a;},
\r
26 "last-child": function(a){return jQuery.nth(a.parentNode.lastChild,1,"previousSibling")==a;},
\r
27 "only-child": function(a){return !jQuery.nth(a.parentNode.lastChild,2,"previousSibling");},
\r
30 parent: function(a){return a.firstChild;},
\r
31 empty: function(a){return !a.firstChild;},
\r
34 contains: function(a,i,m){return (a.textContent||a.innerText||jQuery(a).text()||"").indexOf(m[3])>=0;},
\r
37 visible: function(a){return "hidden"!=a.type&&jQuery.css(a,"display")!="none"&&jQuery.css(a,"visibility")!="hidden";},
\r
38 hidden: function(a){return "hidden"==a.type||jQuery.css(a,"display")=="none"||jQuery.css(a,"visibility")=="hidden";},
\r
41 enabled: function(a){return !a.disabled;},
\r
42 disabled: function(a){return a.disabled;},
\r
43 checked: function(a){return a.checked;},
\r
44 selected: function(a){return a.selected||jQuery.attr(a,"selected");},
\r
47 text: function(a){return "text"==a.type;},
\r
48 radio: function(a){return "radio"==a.type;},
\r
49 checkbox: function(a){return "checkbox"==a.type;},
\r
50 file: function(a){return "file"==a.type;},
\r
51 password: function(a){return "password"==a.type;},
\r
52 submit: function(a){return "submit"==a.type;},
\r
53 image: function(a){return "image"==a.type;},
\r
54 reset: function(a){return "reset"==a.type;},
\r
55 button: function(a){return "button"==a.type||jQuery.nodeName(a,"button");},
\r
56 input: function(a){return /input|select|textarea|button/i.test(a.nodeName);},
\r
59 has: function(a,i,m){return jQuery.find(m[3],a).length;},
\r
62 header: function(a){return /h\d/i.test(a.nodeName);},
\r
65 animated: function(a){return jQuery.grep(jQuery.timers,function(fn){return a==fn.elem;}).length;}
\r
69 // The regular expressions that power the parsing engine
\r
71 // Match: [@value='test'], [@foo]
\r
72 /^(\[) *@?([\w-]+) *([!*$^~=]*) *('?"?)(.*?)\4 *\]/,
\r
74 // Match: :contains('foo')
\r
75 /^(:)([\w-]+)\("?'?(.*?(\(.*?\))?[^(]*?)"?'?\)/,
\r
77 // Match: :even, :last-chlid, #id, .class
\r
78 new RegExp("^([:.#]*)(" + chars + "+)")
\r
81 multiFilter: function( expr, elems, not ) {
\r
84 while ( expr && expr != old ) {
\r
86 var f = jQuery.filter( expr, elems, not );
\r
87 expr = f.t.replace(/^\s*,\s*/, "" );
\r
88 cur = not ? elems = f.r : jQuery.merge( cur, f.r );
\r
94 find: function( t, context ) {
\r
95 // Quickly handle non-string expressions
\r
96 if ( typeof t != "string" )
\r
99 // check to make sure context is a DOM element or a document
\r
100 if ( context && context.nodeType != 1 && context.nodeType != 9)
\r
103 // Set the correct context (if none is provided)
\r
104 context = context || document;
\r
106 // Initialize the search
\r
107 var ret = [context], done = [], last, nodeName;
\r
109 // Continue while a selector expression exists, and while
\r
110 // we're no longer looping upon ourselves
\r
111 while ( t && last != t ) {
\r
115 t = jQuery.trim(t);
\r
117 var foundToken = false;
\r
119 // An attempt at speeding up child selectors that
\r
120 // point to a specific element tag
\r
121 var re = quickChild;
\r
122 var m = re.exec(t);
\r
125 nodeName = m[1].toUpperCase();
\r
127 // Perform our own iteration and filter
\r
128 for ( var i = 0; ret[i]; i++ )
\r
129 for ( var c = ret[i].firstChild; c; c = c.nextSibling )
\r
130 if ( c.nodeType == 1 && (nodeName == "*" || c.nodeName.toUpperCase() == nodeName) )
\r
134 t = t.replace( re, "" );
\r
135 if ( t.indexOf(" ") == 0 ) continue;
\r
138 re = /^([>+~])\s*(\w*)/i;
\r
140 if ( (m = re.exec(t)) != null ) {
\r
144 nodeName = m[2].toUpperCase();
\r
147 for ( var j = 0, rl = ret.length; j < rl; j++ ) {
\r
148 var n = m == "~" || m == "+" ? ret[j].nextSibling : ret[j].firstChild;
\r
149 for ( ; n; n = n.nextSibling )
\r
150 if ( n.nodeType == 1 ) {
\r
151 var id = jQuery.data(n);
\r
153 if ( m == "~" && merge[id] ) break;
\r
155 if (!nodeName || n.nodeName.toUpperCase() == nodeName ) {
\r
156 if ( m == "~" ) merge[id] = true;
\r
160 if ( m == "+" ) break;
\r
166 // And remove the token
\r
167 t = jQuery.trim( t.replace( re, "" ) );
\r
172 // See if there's still an expression, and that we haven't already
\r
174 if ( t && !foundToken ) {
\r
175 // Handle multiple expressions
\r
176 if ( !t.indexOf(",") ) {
\r
177 // Clean the result set
\r
178 if ( context == ret[0] ) ret.shift();
\r
180 // Merge the result sets
\r
181 done = jQuery.merge( done, ret );
\r
183 // Reset the context
\r
184 r = ret = [context];
\r
186 // Touch up the selector string
\r
187 t = " " + t.substr(1,t.length);
\r
190 // Optimize for the case nodeName#idName
\r
192 var m = re2.exec(t);
\r
194 // Re-organize the results, so that they're consistent
\r
196 m = [ 0, m[2], m[3], m[1] ];
\r
199 // Otherwise, do a traditional filter check for
\r
200 // ID, class, and element selectors
\r
205 m[2] = m[2].replace(/\\/g, "");
\r
207 var elem = ret[ret.length-1];
\r
209 // Try to do a global search by ID, where we can
\r
210 if ( m[1] == "#" && elem && elem.getElementById && !jQuery.isXMLDoc(elem) ) {
\r
211 // Optimization for HTML document case
\r
212 var oid = elem.getElementById(m[2]);
\r
214 // Do a quick check for the existence of the actual ID attribute
\r
215 // to avoid selecting by the name attribute in IE
\r
216 // also check to insure id is a string to avoid selecting an element with the name of 'id' inside a form
\r
217 if ( (jQuery.browser.msie||jQuery.browser.opera) && oid && typeof oid.id == "string" && oid.id != m[2] )
\r
218 oid = jQuery('[@id="'+m[2]+'"]', elem)[0];
\r
220 // Do a quick check for node name (where applicable) so
\r
221 // that div#foo searches will be really fast
\r
222 ret = r = oid && (!m[3] || jQuery.nodeName(oid, m[3])) ? [oid] : [];
\r
224 // We need to find all descendant elements
\r
225 for ( var i = 0; ret[i]; i++ ) {
\r
226 // Grab the tag name being searched for
\r
227 var tag = m[1] == "#" && m[3] ? m[3] : m[1] != "" || m[0] == "" ? "*" : m[2];
\r
229 // Handle IE7 being really dumb about <object>s
\r
230 if ( tag == "*" && ret[i].nodeName.toLowerCase() == "object" )
\r
233 r = jQuery.merge( r, ret[i].getElementsByTagName( tag ));
\r
236 // It's faster to filter by class and be done with it
\r
238 r = jQuery.classFilter( r, m[2] );
\r
240 // Same with ID filtering
\r
241 if ( m[1] == "#" ) {
\r
244 // Try to find the element with the ID
\r
245 for ( var i = 0; r[i]; i++ )
\r
246 if ( r[i].getAttribute("id") == m[2] ) {
\r
257 t = t.replace( re2, "" );
\r
262 // If a selector string still exists
\r
264 // Attempt to filter it
\r
265 var val = jQuery.filter(t,r);
\r
267 t = jQuery.trim(val.t);
\r
271 // An error occurred with the selector;
\r
272 // just return an empty set instead
\r
276 // Remove the root context
\r
277 if ( ret && context == ret[0] )
\r
280 // And combine the results
\r
281 done = jQuery.merge( done, ret );
\r
286 classFilter: function(r,m,not){
\r
289 for ( var i = 0; r[i]; i++ ) {
\r
290 var pass = (" " + r[i].className + " ").indexOf( m ) >= 0;
\r
291 if ( !not && pass || not && !pass )
\r
297 filter: function(t,r,not) {
\r
300 // Look for common filter expressions
\r
301 while ( t && t != last ) {
\r
304 var p = jQuery.parse, m;
\r
306 for ( var i = 0; p[i]; i++ ) {
\r
307 m = p[i].exec( t );
\r
310 // Remove what we just matched
\r
311 t = t.substring( m[0].length );
\r
313 m[2] = m[2].replace(/\\/g, "");
\r
321 // :not() is a special case that can be optimized by
\r
322 // keeping it out of the expression list
\r
323 if ( m[1] == ":" && m[2] == "not" )
\r
324 // optimize if only one selector found (most common case)
\r
325 r = isSimple.test( m[3] ) ?
\r
326 jQuery.filter(m[3], r, true).r :
\r
327 jQuery( r ).not( m[3] );
\r
329 // We can get a big speed boost by filtering by class here
\r
330 else if ( m[1] == "." )
\r
331 r = jQuery.classFilter(r, m[2], not);
\r
333 else if ( m[1] == "[" ) {
\r
336 // special case, filter by exact name
\r
337 if ( !not && m[2] == 'name' && type == '=' )
\r
338 r = jQuery.grep( document.getElementsByName(m[5]), function(elem){
\r
339 return jQuery.inArray( elem, r ) != -1;
\r
342 for ( var i = 0, rl = r.length, tmp = []; i < rl; i++ ) {
\r
343 var a = r[i], z = a[ jQuery.props[m[2]] || m[2] ];
\r
345 if ( z == null || /href|src|selected/.test(m[2]) )
\r
346 z = jQuery.attr(a,m[2]) || '';
\r
348 if ( (type == "" && !!z ||
\r
349 type == "=" && z == m[5] ||
\r
350 type == "!=" && z != m[5] ||
\r
351 type == "^=" && z && !z.indexOf(m[5]) ||
\r
352 type == "$=" && z.substr(z.length - m[5].length) == m[5] ||
\r
353 (type == "*=" || type == "~=") && z.indexOf(m[5]) >= 0) ^ not )
\r
359 // We can get a speed boost by handling nth-child here
\r
360 } else if ( m[1] == ":" && m[2] == "nth-child" ) {
\r
361 var merge = {}, tmp = [],
\r
362 // parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
\r
363 test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
\r
364 m[3] == "even" && "2n" || m[3] == "odd" && "2n+1" ||
\r
365 !/\D/.test(m[3]) && "0n+" + m[3] || m[3]),
\r
366 // calculate the numbers (first)n+(last) including if they are negative
\r
367 first = (test[1] + (test[2] || 1)) - 0, last = test[3] - 0;
\r
369 // loop through all the elements left in the jQuery object
\r
370 for ( var i = 0, rl = r.length; i < rl; i++ ) {
\r
371 var node = r[i], parentNode = node.parentNode, id = jQuery.data(parentNode);
\r
373 if ( !merge[id] ) {
\r
376 for ( var n = parentNode.firstChild; n; n = n.nextSibling )
\r
377 if ( n.nodeType == 1 )
\r
385 if ( first == 0 ) {
\r
386 if ( node.nodeIndex == last )
\r
388 } else if ( (node.nodeIndex - last) % first == 0 && (node.nodeIndex - last) / first >= 0 )
\r
397 // Otherwise, find the expression to execute
\r
399 var fn = jQuery.expr[ m[1] ];
\r
400 if ( typeof fn == "object" )
\r
403 if ( typeof fn == "string" )
\r
404 fn = eval("false||function(a,i){return " + fn + ";}");
\r
406 // Execute it against the current filter
\r
407 r = jQuery.grep( r, function(elem, i){
\r
408 return fn(elem, i, m, r);
\r
413 // Return an array of filtered elements (r)
\r
414 // and the modified expression string (t)
\r
415 return { r: r, t: t };
\r
418 dir: function( elem, dir ){
\r
420 var cur = elem[dir];
\r
421 while ( cur && cur != document ) {
\r
422 if ( cur.nodeType == 1 )
\r
423 matched.push( cur );
\r
429 nth: function(cur,result,dir,elem){
\r
430 result = result || 1;
\r
433 for ( ; cur; cur = cur[dir] )
\r
434 if ( cur.nodeType == 1 && ++num == result )
\r
440 sibling: function( n, elem ) {
\r
443 for ( ; n; n = n.nextSibling ) {
\r
444 if ( n.nodeType == 1 && (!elem || n != elem) )
\r