6 ], function( jQuery, indexOf, rneedsContext ) {
10 var risSimple = /^.[^:#\[\.,]*$/;
12 // Implement the identical functionality for filter and not
13 function winnow( elements, qualifier, not ) {
14 if ( jQuery.isFunction( qualifier ) ) {
15 return jQuery.grep( elements, function( elem, i ) {
16 return !!qualifier.call( elem, i, elem ) !== not;
21 if ( qualifier.nodeType ) {
22 return jQuery.grep( elements, function( elem ) {
23 return ( elem === qualifier ) !== not;
27 // Arraylike of elements (jQuery, arguments, Array)
28 if ( typeof qualifier !== "string" ) {
29 return jQuery.grep( elements, function( elem ) {
30 return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
34 // Simple selector that can be filtered directly, removing non-Elements
35 if ( risSimple.test( qualifier ) ) {
36 return jQuery.filter( qualifier, elements, not );
39 // Complex selector, compare the two sets, removing non-Elements
40 qualifier = jQuery.filter( qualifier, elements );
41 return jQuery.grep( elements, function( elem ) {
42 return ( indexOf.call( qualifier, elem ) > -1 ) !== not && elem.nodeType === 1;
46 jQuery.filter = function( expr, elems, not ) {
47 var elem = elems[ 0 ];
50 expr = ":not(" + expr + ")";
53 if ( elems.length === 1 && elem.nodeType === 1 ) {
54 return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
57 return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
58 return elem.nodeType === 1;
63 find: function( selector ) {
68 if ( typeof selector !== "string" ) {
69 return this.pushStack( jQuery( selector ).filter( function() {
70 for ( i = 0; i < len; i++ ) {
71 if ( jQuery.contains( self[ i ], this ) ) {
78 ret = this.pushStack( [] );
80 for ( i = 0; i < len; i++ ) {
81 jQuery.find( selector, self[ i ], ret );
84 return len > 1 ? jQuery.uniqueSort( ret ) : ret;
86 filter: function( selector ) {
87 return this.pushStack( winnow( this, selector || [], false ) );
89 not: function( selector ) {
90 return this.pushStack( winnow( this, selector || [], true ) );
92 is: function( selector ) {
96 // If this is a positional/relative selector, check membership in the returned set
97 // so $("p:first").is("p:last") won't return true for a doc with two "p".
98 typeof selector === "string" && rneedsContext.test( selector ) ?