},
_prefix: "z=a[m[3]];if(!z||/href|src/.test(m[3]))z=jQuery.attr(a,m[3]);"
},
- "[": "jQuery.find(m[2],a).length"
+ "[": "parseInt(m[2])?jQuery.nth(a.parentNode.firstChild,parseInt(m[2]),'nextSibling',a)==a:jQuery.find(m[2],a).length"
},
// The regular expressions that power the parsing engine
parse: [
// Match: [@value='test'], [@foo]
- /^\[ *(@)([a-z0-9_-]*) *([!*$^=]*) *('?"?)(.*?)\4 *\]/i,
+ /^\[ *(@)([\w-]+) *([!*$^=]*) *('?"?)(.*?)\4 *\]/,
// Match: [div], [div p]
/^(\[)\s*(.*?(\[.*?\])?[^[]*?)\s*\]/,
// Match: :contains('foo')
- /^(:)([a-z0-9_-]*)\("?'?(.*?(\(.*?\))?[^(]*?)"?'?\)/i,
+ /^(:)([\w-]+)\("?'?(.*?(\(.*?\))?[^(]*?)"?'?\)/,
- // Match: :even, :last-chlid
- /^([:.#]*)([a-z0-9_*-]*)/i
+ // Match: :even, :last-chlid, #id, .class
+ new RegExp("^([:.#]*)(" +
+ ( jQuery.chars = "(?:[\\w\u0128-\uFFFF*-]|\\\\.)" ) + "+)")
],
token: [
t = t.substr(2,t.length);
// And the / root expression
- } else if ( !t.indexOf("/") ) {
+ } else if ( !t.indexOf("/") && !context.ownerDocument ) {
context = context.documentElement;
t = t.substr(1,t.length);
if ( t.indexOf("/") >= 1 )
}
// Initialize the search
- var ret = [context], done = [], last = null;
+ var ret = [context], done = [], last;
// Continue while a selector expression exists, and while
// we're no longer looping upon ourselves
var r = [];
last = t;
- t = jQuery.trim(t).replace( /^\/\//i, "" );
+ t = jQuery.trim(t).replace( /^\/\//, "" );
var foundToken = false;
// An attempt at speeding up child selectors that
// point to a specific element tag
- var re = /^[\/>]\s*([a-z0-9*-]+)/i;
+ var re = /^[\/>]\s*([\w*-]+)/;
var m = re.exec(t);
if ( m ) {
// Perform our own iteration and filter
- jQuery.each( ret, function(){
- for ( var c = this.firstChild; c; c = c.nextSibling )
- if ( c.nodeType == 1 && ( jQuery.nodeName(c, m[1]) || m[1] == "*" ) )
+ for ( var i = 0; ret[i]; i++ )
+ for ( var c = ret[i].firstChild; c; c = c.nextSibling )
+ if ( c.nodeType == 1 && ( m[1] == "*" || jQuery.nodeName(c, m[1]) ) )
r.push( c );
- });
ret = r;
t = t.replace( re, "" );
foundToken = true;
} else {
// Look for pre-defined expression tokens
- for ( var i = 0; i < jQuery.token.length; i += 2 ) {
+ for ( var i = 0, tl = jQuery.token.length; i < tl; i += 2 ) {
// Attempt to match each, individual, token in
// the specified order
- var re = jQuery.token[i];
+ var re = jQuery.token[i], fn = jQuery.token[i+1];
var m = re.exec(t);
// If the token match was found
if ( m ) {
// Map it against the token's handler
- r = ret = jQuery.map( ret, jQuery.isFunction( jQuery.token[i+1] ) ?
- jQuery.token[i+1] :
- function(a){ return eval(jQuery.token[i+1]); });
+ r = ret = jQuery.map( ret, jQuery.isFunction( fn ) ?
+ fn : new Function( "a", "return " + fn ) );
// And remove the token
t = jQuery.trim( t.replace( re, "" ) );
if ( ret[0] == context ) ret.shift();
// Merge the result sets
- jQuery.merge( done, ret );
+ done = jQuery.merge( done, ret );
// Reset the context
r = ret = [context];
} else {
// Optomize for the case nodeName#idName
- var re2 = /^([a-z0-9_-]+)(#)([a-z0-9\\*_-]*)/i;
+ var re2 = new RegExp("^(\\w+)(#)(" + jQuery.chars + "+)");
var m = re2.exec(t);
// Re-organize the results, so that they're consistent
} else {
// Otherwise, do a traditional filter check for
// ID, class, and element selectors
- re2 = /^([#.]?)([a-z0-9\\*_-]*)/i;
+ re2 = new RegExp("^([#.]?)(" + jQuery.chars + "*)");
m = re2.exec(t);
}
+ m[2] = m[2].replace(/\\/g, "");
+
+ var elem = ret[ret.length-1];
+
// Try to do a global search by ID, where we can
- if ( m[1] == "#" && ret[ret.length-1].getElementById ) {
+ if ( m[1] == "#" && elem && elem.getElementById ) {
// Optimization for HTML document case
- var oid = ret[ret.length-1].getElementById(m[2]);
+ var oid = elem.getElementById(m[2]);
// Do a quick check for the existence of the actual ID attribute
// to avoid selecting by the name attribute in IE
- if ( jQuery.browser.msie && oid && oid.id != m[2] )
- oid = jQuery('[@id="'+m[2]+'"]', ret[ret.length-1])[0];
+ if ( (jQuery.browser.msie||jQuery.browser.opera) && oid && oid.id != m[2] )
+ oid = jQuery('[@id="'+m[2]+'"]', elem)[0];
// Do a quick check for node name (where applicable) so
// that div#foo searches will be really fast
ret = r = oid && (!m[3] || jQuery.nodeName(oid, m[3])) ? [oid] : [];
-
} else {
- // Pre-compile a regular expression to handle class searches
- if ( m[1] == "." )
- var rec = new RegExp("(^|\\s)" + m[2] + "(\\s|$)");
-
- // We need to find all descendant elements, it is more
- // efficient to use getAll() when we are already further down
- // the tree - we try to recognize that here
- jQuery.each( ret, function(){
+ // We need to find all descendant elements
+ for ( var i = 0; ret[i]; i++ ) {
// Grab the tag name being searched for
var tag = m[1] != "" || m[0] == "" ? "*" : m[2];
// Handle IE7 being really dumb about <object>s
- if ( jQuery.nodeName(this, "object") && tag == "*" )
+ if ( tag == "*" && ret[i].nodeName.toLowerCase() == "object" )
tag = "param";
- jQuery.merge( r,
- m[1] != "" && ret.length != 1 ?
- jQuery.getAll( this, [], m[1], m[2], rec ) :
- this.getElementsByTagName( tag )
- );
- });
+ r = jQuery.merge( r, ret[i].getElementsByTagName( tag ));
+ }
// It's faster to filter by class and be done with it
- if ( m[1] == "." && ret.length == 1 )
- r = jQuery.grep( r, function(e) {
- return rec.test(e.className);
- });
+ if ( m[1] == "." )
+ r = jQuery.classFilter( r, m[2] );
// Same with ID filtering
- if ( m[1] == "#" && ret.length == 1 ) {
- // Remember, then wipe out, the result set
- var tmp = r;
- r = [];
-
- // Then try to find the element with the ID
- jQuery.each( tmp, function(){
- if ( this.getAttribute("id") == m[2] ) {
- r = [ this ];
- return false;
+ if ( m[1] == "#" ) {
+ var tmp = [];
+
+ // Try to find the element with the ID
+ for ( var i = 0; r[i]; i++ )
+ if ( r[i].getAttribute("id") == m[2] ) {
+ tmp = [ r[i] ];
+ break;
}
- });
+
+ r = tmp;
}
ret = r;
}
}
+ // An error occurred with the selector;
+ // just return an empty set instead
+ if ( t )
+ ret = [];
+
// Remove the root context
- if ( ret && ret[0] == context ) ret.shift();
+ if ( ret && ret[0] == context )
+ ret.shift();
// And combine the results
- jQuery.merge( done, ret );
+ done = jQuery.merge( done, ret );
return done;
},
+ classFilter: function(r,m,not){
+ m = " " + m + " ";
+ var tmp = [];
+ for ( var i = 0; r[i]; i++ ) {
+ var pass = (" " + r[i].className + " ").indexOf( m ) >= 0;
+ if ( !not && pass || not && !pass )
+ tmp.push( r[i] );
+ }
+ return tmp;
+ },
+
filter: function(t,r,not) {
+ var last;
+
// Look for common filter expressions
- while ( t && /^[a-z[({<*:.#]/i.test(t) ) {
+ while ( t && t != last ) {
+ last = t;
var p = jQuery.parse, m;
- jQuery.each( p, function(i,re){
-
- // Look for, and replace, string-like sequences
- // and finally build a regexp out of it
- m = re.exec( t );
+ for ( var i = 0; p[i]; i++ ) {
+ m = p[i].exec( t );
if ( m ) {
// Remove what we just matched
if ( jQuery.expr[ m[1] ]._resort )
m = jQuery.expr[ m[1] ]._resort( m );
- return false;
+ m[2] = m[2].replace(/\\/g, "");
+
+ break;
}
- });
+ }
+
+ if ( !m )
+ break;
// :not() is a special case that can be optimized by
// keeping it out of the expression list
if ( m[1] == ":" && m[2] == "not" )
r = jQuery.filter(m[3], r, true).r;
- // Handle classes as a special case (this will help to
- // improve the speed, as the regexp will only be compiled once)
- else if ( m[1] == "." ) {
-
- var re = new RegExp("(^|\\s)" + m[2] + "(\\s|$)");
- r = jQuery.grep( r, function(e){
- return re.test(e.className || "");
- }, not);
+ // We can get a big speed boost by filtering by class here
+ else if ( m[1] == "." )
+ r = jQuery.classFilter(r, m[2], not);
// Otherwise, find the expression to execute
- } else {
+ else {
var f = jQuery.expr[m[1]];
if ( typeof f != "string" )
f = jQuery.expr[m[1]][m[2]];
// and the modified expression string (t)
return { r: r, t: t };
},
-
- getAll: function( o, r, token, name, re ) {
- for ( var s = o.firstChild; s; s = s.nextSibling )
- if ( s.nodeType == 1 ) {
- var add = true;
-
- if ( token == "." )
- add = s.className && re.test(s.className);
- else if ( token == "#" )
- add = s.getAttribute("id") == name;
-
- if ( add )
- r.push( s );
-
- if ( token == "#" && r.length ) break;
-
- if ( s.firstChild )
- jQuery.getAll( s, r, token, name, re );
- }
-
- return r;
- },
/**
* All ancestors of a given element.
git.asbjorn.biz / jquery.git / blobdiff