- slice = Array.prototype.slice;
-
-// Implement the identical functionality for filter and not
-var winnow = function( elements, qualifier, keep ) {
- if ( jQuery.isFunction( qualifier ) ) {
- return jQuery.grep(elements, function( elem, i ) {
- return !!qualifier.call( elem, i, elem ) === keep;
- });
-
- } else if ( qualifier.nodeType ) {
- return jQuery.grep(elements, function( elem, i ) {
- return (elem === qualifier) === keep;
- });
-
- } else if ( typeof qualifier === "string" ) {
- var filtered = jQuery.grep(elements, function( elem ) {
- return elem.nodeType === 1;
- });
-
- if ( isSimple.test( qualifier ) ) {
- return jQuery.filter(qualifier, filtered, !keep);
- } else {
- qualifier = jQuery.filter( qualifier, filtered );
- }
- }
-
- return jQuery.grep(elements, function( elem, i ) {
- return (jQuery.inArray( elem, qualifier ) >= 0) === keep;
- });
-};
+ isSimple = /^.[^:#\[\.,]*$/,
+ slice = Array.prototype.slice,
+ POS = jQuery.expr.match.POS;