From 746074f0f74b0c0916fb2db2b6370c324822f31a Mon Sep 17 00:00:00 2001
From: Dave Methvin <dave.methvin@gmail.com>
Date: Mon, 24 Oct 2011 18:05:53 -0400
Subject: [PATCH] Remove attribute match from quickIs

As @timmywil points out, attributes and properties are confused by IE6/7. This commit also reworks the unit test case to do a better job of checking className matches.
---
 src/event.js       | 11 +++++------
 test/unit/event.js | 25 +++++++------------------
 2 files changed, 12 insertions(+), 24 deletions(-)

diff --git a/src/event.js b/src/event.js
index 23e9ca0e0..382ff3614 100644
--- a/src/event.js
+++ b/src/event.js
@@ -9,14 +9,14 @@ var rnamespaces = /\.(.*)$/,
 	rhoverHack = /\bhover(\.\S+)?/,
 	rkeyEvent = /^key/,
 	rmouseEvent = /^(?:mouse|contextmenu)|click/,
-	rquickIs = /^([\w\-]+)?(?:#([\w\-]+))?(?:\.([\w\-]+))?(?:\[([\w+\-]+)=["']?([\w\-]*)["']?\])?$/,
+	rquickIs = /^(\w*)(?:#([\w\-]+))?(?:\.([\w\-]+))?$/,
 	quickParse = function( selector ) {
 		var quick = rquickIs.exec( selector );
 		if ( quick ) {
-			//   0  1    2   3      4         5
-			// [ _, tag, id, class, attrName, attrValue ]
+			//   0  1    2   3
+			// [ _, tag, id, class ]
 			quick[1] = ( quick[1] || "" ).toLowerCase();
-			quick[3] = quick[3] && new RegExp( "(?:^|\\w)" + quick[3] + "(?:\\w|$)" );
+			quick[3] = quick[3] && new RegExp( "(?:^|\\s)" + quick[3] + "(?:\\s|$)" );
 		}
 		return quick;
 	},
@@ -24,8 +24,7 @@ var rnamespaces = /\.(.*)$/,
 		return (
 			(!m[1] || elem.nodeName.toLowerCase() === m[1]) &&
 			(!m[2] || elem.id === m[2]) &&
-			(!m[3] || m[3].test( elem.className )) &&
-			(!m[4] || elem.getAttribute( m[4] ) == m[5])
+			(!m[3] || m[3].test( elem.className ))
 		);
 	};
 
diff --git a/test/unit/event.js b/test/unit/event.js
index de9c225c1..35664b022 100644
--- a/test/unit/event.js
+++ b/test/unit/event.js
@@ -2409,11 +2409,11 @@ test(".on and .off", function() {
 });
 
 test("delegated events quickIs", function() {
-	expect(17);
+	expect(14);
 	var markup = jQuery(
 			'<div>'+
 				'<p class="D">'+
-					'dead<b devo="cool">beat</b>club'+
+					'dead<b class="devo-like">beat</b>club'+
 				'</p>'+
 				'<q id="famous">'+
 					'worked<em>or</em>borked?<em></em>'+
@@ -2437,29 +2437,18 @@ test("delegated events quickIs", function() {
 		.appendTo( "body" )
 		.on( "blink", "em", func )
 		.on( "blink", ".D", func )
+		.on( "blink", ".devo-like", func )
+		.on( "blink", ".devo", func )
 		.on( "blink", ".d", func )
 		.on( "blink", "p.d", func )
-		.on( "blink", "[devo=cool]", func )
-		.on( "blink", "[devo='NO']", func )
 		.on( "blink", "#famous", func );
 
-	check( "[devo=cool]", "b|[devo=cool] p|.D" );
-	check( "[devo='']", "" );
+	check( ".devo-like", "b|.devo-like p|.D" );
+	check( ".devo", "" );
 	check( "p", "p|.D" );
-	check( "b", "b|[devo=cool] p|.D" );
+	check( "b", "b|.devo-like p|.D" );
 	check( "em", "em|em q|#famous em|em q|#famous" );
 
-	markup.find( "b" ).attr( "devo", "NO" );
-	check( "b", "b|[devo='NO'] p|.D" );
-
-	markup
-		.on( "blink", ".tricky", function() {
-			ok( false, "triggered on wrong class name match" );
-		})
-		.find( "p" )
-			.attr( "class", "tricky-match" )
-			.trigger( "blink" );
-
 	markup.remove();
 });