Added support for finding elements that have underscores in their name (along...

Added support for finding elements that have underscores in their name (along with other allowed characters). Fix for ticket #1084.

build/test/index.html

@@ -85,6 +85,8 @@
 			<span id="utf8class2" class="台北"></span>
 			<span id="foo:bar" class="foo:bar"></span>
 			<span id="test.foo[5]bar" class="test.foo[5]bar"></span>
+			
+			<foo_bar id="foobar">test element</foo_bar>
 		</form>
 		<b id="floatTest">Float test.</b>
 		<iframe id="iframe" name="iframe"></iframe>

src/selector/selector.js

@@ -80,7 +80,7 @@ jQuery.extend({
 
 		// Match: :even, :last-chlid, #id, .class
 		new RegExp("^([:.#]*)(" + 
-			( jQuery.chars = "(?:[\\w\u0128-\uFFFF*-]|\\\\.)" ) + "+)")
+			( jQuery.chars = "(?:[\\w\u0128-\uFFFF*_-]|\\\\.)" ) + "+)")
 	],
 
 	token: [
@@ -152,7 +152,7 @@ jQuery.extend({
 
 			// An attempt at speeding up child selectors that
 			// point to a specific element tag
-			var re = /^[\/>]\s*([\w*-]+)/;
+			var re = new RegExp("^[/>]\\s*(" + jQuery.chars + "+)");
 			var m = re.exec(t);
 
 			if ( m ) {
@@ -207,7 +207,7 @@ jQuery.extend({
 
 				} else {
 					// Optomize for the case nodeName#idName
-					var re2 = new RegExp("^(\\w+)(#)(" + jQuery.chars + "+)");
+					var re2 = new RegExp("^(" + jQuery.chars + "+)(#)(" + jQuery.chars + "+)");
 					var m = re2.exec(t);
 					
 					// Re-organize the results, so that they're consistent

src/selector/selectorTest.js

 module("selector");
 
 test("element", function() {
-	expect(8);
+	expect(9);
 	ok( $("*").size() >= 30, "Select all" );
 	t( "Element Selector", "div", ["main","foo"] );
 	t( "Element Selector", "body", ["body"] );
@@ -11,6 +11,8 @@ test("element", function() {
 	
 	ok( $("#length").length, '<input name="length"> cannot be found under IE, see #945' );
 	ok( $("#lengthtest input").length, '<input name="length"> cannot be found under IE, see #945' );
+
+	t( "Element Selector with underscore", "foo_bar", ["foobar"] );
 });
 
 test("broken", function() {
@@ -204,4 +206,4 @@ test("basic xpath", function() {
 	$("#foo").each(function() {
 		isSet( $("/p", this).get(), q("sndp", "en", "sap"), "Check XPath context" );
 	});
-});
\ No newline at end of file
+});