X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fselector.js;h=1badc693299a7a58878f5466fdbf4a1a756d2f0b;hb=be9302b710416715b9d278f589be99fa6f9e7cb8;hp=c35fbb1eb9ae99c14cfc02cd06f670fca2f75c42;hpb=ffbedf0262b3eea906f39c0115b818d7456a3994;p=jquery.git

diff --git a/src/selector.js b/src/selector.js
index c35fbb1..1badc69 100644
--- a/src/selector.js
+++ b/src/selector.js
@@ -140,7 +140,8 @@ jQuery.extend({
 				if ( (m = re.exec(t)) != null ) {
 					r = [];
 
-					nodeName = m[2].toUpperCase(), merge = {};
+					var merge = {};
+					nodeName = m[2].toUpperCase();
 					m = m[1];
 
 					for ( var j = 0, rl = ret.length; j < rl; j++ ) {
@@ -320,7 +321,10 @@ jQuery.extend({
 			// :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;
+				// optimize if only one selector found (most common case)
+				r = isSimple.test( m[3] ) ?
+					jQuery.filter(m[3], r, true).r :
+					jQuery( r ).not( m[3] );
 
 			// We can get a big speed boost by filtering by class here
 			else if ( m[1] == "." )