Lots of improvements. Added support for .not( jQuery("...") ) and support for multi filters: .filter("foo,bar") .parent("div, .class"), etc.

src/jquery/coreTest.js

@@ -472,9 +472,8 @@ test("html(String)", function() {
 });
 
 test("filter()", function() {
-	expect(5);
+	expect(4);
 	isSet( $("input").filter(":checked").get(), q("radio2", "check1"), "filter(String)" );
-	isSet( $("p").filter(["#ap", "#sndp"]).get(), q("ap", "sndp"), "filter(Array<String>)" );
 	isSet( $("p").filter("#ap, #sndp").get(), q("ap", "sndp"), "filter('String, String')" );
 	isSet( $("p").filter("#ap,#sndp").get(), q("ap", "sndp"), "filter('String,String')" );
 	isSet( $("p").filter(function() { return !$("a", this).length }).get(), q("sndp", "first"), "filter(Function)" );
@@ -483,7 +482,7 @@ test("filter()", function() {
 test("not(String)", function() {
 	expect(2);
 	ok( $("#main > p#ap > a").not("#google").length == 2, "not('selector')" );
-	isSet( $("p").not("#ap, #sndp").get(), q("firstp", "en", "sap", "first", "result"), "not('selector, selector')" );
+	isSet( $("p").not("#ap, #sndp, .result").get(), q("firstp", "en", "sap", "first"), "not('selector, selector')" );
 });
 
 
@@ -647,4 +646,4 @@ test("eq(), gt(), lt(), contains()", function() {
 	isSet( $("#ap a").gt(0).get(), q("groups", "anchor1", "mark"), "gt()" );
 	isSet( $("#ap a").lt(3).get(), q("google", "groups", "anchor1"), "lt()" );
 	isSet( $("#foo a").contains("log").get(), q("anchor2", "simon"), "contains()" );
-});
+});

src/jquery/jquery.js

@@ -812,21 +812,21 @@ jQuery.fn = jQuery.prototype = {
 	 * match the specified expression(s). This method is used to narrow down
 	 * the results of a search.
 	 *
-	 * Provide a String array of expressions to apply multiple filters at once.
+	 * Provide a comma-separated list of expressions to apply multiple filters at once.
 	 *
 	 * @example $("p").filter(".selected")
 	 * @before <p class="selected">Hello</p><p>How are you?</p>
 	 * @result [ <p class="selected">Hello</p> ]
 	 * @desc Selects all paragraphs and removes those without a class "selected".
 	 *
-	 * @example $("p").filter([".selected", ":first"])
+	 * @example $("p").filter(".selected, :first")
 	 * @before <p>Hello</p><p>Hello Again</p><p class="selected">And Again</p>
 	 * @result [ <p>Hello</p>, <p class="selected">And Again</p> ]
 	 * @desc Selects all paragraphs and removes those without class "selected" and being the first one.
 	 *
 	 * @name filter
 	 * @type jQuery
-	 * @param String|Array<String> expression Expression(s) to search with.
+	 * @param String expression Expression(s) to search with.
 	 * @cat DOM/Traversing
 	 */
 	 
@@ -849,21 +849,12 @@ jQuery.fn = jQuery.prototype = {
 	 */
 	filter: function(t) {
 		return this.pushStack(
-			t.constructor == Array &&
-			jQuery.map(this,function(a){
-				for ( var i = 0, tl = t.length; i < tl; i++ )
-					if ( jQuery.filter(t[i],[a]).r.length )
-						return a;
-				return null;
+			t.constructor == Function &&
+			jQuery.grep(this, function(el, index){
+				return t.apply(el, [index])
 			}) ||
 
-			t.constructor == Boolean &&
-			( t ? this.get() : [] ) ||
-
-			typeof t == "function" &&
-			jQuery.grep( this, function(el, index) { return t.apply(el, [index]) }) ||
-
-			jQuery.filter(t,this).r );
+			jQuery.multiFilter(t,this) );
 	},
 
 	/**
@@ -896,10 +887,33 @@ jQuery.fn = jQuery.prototype = {
 	 * @param String expr An expression with which to remove matching elements
 	 * @cat DOM/Traversing
 	 */
+
+	/**
+	 * Removes any elements inside the array of elements from the set
+	 * of matched elements. This method is used to remove one or more
+	 * elements from a jQuery object.
+	 *
+	 * @example $("p").not( $("div p.selected") )
+	 * @before <div><p>Hello</p><p class="selected">Hello Again</p></div>
+	 * @result [ <p>Hello</p> ]
+	 * @desc Removes all elements that match "div p.selected" from the total set of all paragraphs.
+	 *
+	 * @name not
+	 * @type jQuery
+	 * @param Array|jQuery elems A set of elements to remove from the jQuery set of matched elements.
+	 * @cat DOM/Traversing
+	 */
 	not: function(t) {
-		return this.pushStack( typeof t == "string" ?
-			jQuery.filter(t,this,true).r :
-			jQuery.grep(this,function(a){ return a != t; }) );
+		return this.pushStack(
+			t.constructor == String &&
+			jQuery.multiFilter(t,this,true) ||
+
+			jQuery.grep(this,function(a){
+					if ( t.constructor == Array || t.jquery )
+						return !jQuery.inArray( t, a );
+					else
+						return a != t;
+			}) );
 	},
 
 	/**
@@ -1007,7 +1021,9 @@ jQuery.fn = jQuery.prototype = {
 	 * @cat DOM/Attributes
 	 */
 	val: function( val ) {
-		return val == undefined ?
			( this.length ? this[0].value : null ) :
			this.attr( "value", val );
+		return val == undefined ?
+			( this.length ? this[0].value : null ) :
+			this.attr( "value", val );
 	},
 	
 	/**
@@ -1037,7 +1053,9 @@ jQuery.fn = jQuery.prototype = {
 	 * @cat DOM/Attributes
 	 */
 	html: function( val ) {
-		return val == undefined ?
			( this.length ? this[0].innerHTML : null ) :
			this.empty().append( val );
+		return val == undefined ?
+			( this.length ? this[0].innerHTML : null ) :
+			this.empty().append( val );
 	},
 	
 	/**
@@ -1828,7 +1846,7 @@ jQuery.each({
 	jQuery.fn[ i ] = function(a) {
 		var ret = jQuery.map(this,n);
 		if ( a && typeof a == "string" )
-			ret = jQuery.filter(a,ret).r;
+			ret = jQuery.multiFilter(a,ret);
 		return this.pushStack( ret );
 	};
 });

src/selector/selector.js

@@ -89,6 +89,24 @@ jQuery.extend({
 		}
 	],
 
+	multiFilter: function( expr, elems, not ) {
+		var old, cur = [];
+
+		while ( expr && expr != old ) {
+console.log( cur, expr, elems, not );
+			var f = jQuery.filter( expr, elems, not );
+			expr = f.t.replace(/^\s*,\s*/, "" );
+
+			if ( not )
+				cur = elems = f.r;
+			else
+				cur = jQuery.merge( cur, f.r );
+		}
+console.log( "DONE", cur, expr, elems, not );
+
+		return cur;
+	},
+
 	/**
 	 * @name $.find
 	 * @type Array<Element>