jquery.filter_grep.js

;(function(jQuery){

// This jQuery.filter version handles selectors and callbacks.
// 
// Selector - ( elems, selector, [not] )
//   This is the original jQuery.filter signature with two first arguments swapped.
// 	
// Callback - ( elems, callback, [thisObject], [inv] )
//   This is the old jQuery.grep signature enhanced to support the ECMA-262 filter signature.

jQuery.filter = function( elems, filter, inv ) {
	// Handle sellectors
	if ( typeof filter === "string" ) {
		if ( inv ) {
			filter = ":not(" + filter + ")";
		}
	
		return elems.length === 1 ?
			jQuery.find.matchesSelector( elems[0], expr ) ? [ elems[0] ] : [] :
			jQuery.find.matches( expr, elems );
	}
	
	var ret = [], elem, thisObject;
	
	if ( inv && inv !== true || arguments.length > 3 ) {
		thisObject = inv;
		inv = arguments[3];
	}
	
	inv = !!inv;
	
	for ( var i = 0, length = elems.length; i < length; i++ ) {
		elem = elems[i];
		
		if ( inv !== filter.call( thisObject || elem, elem, i, elems ) ) {
			ret.push( elem );
		}
	}

	return ret;
};


// Make .grep() an alias of .filter().
jQuery.grep = jQuery.filter;


})(jQuery);

jquery.filter_grep_BC.js

;(function(jQuery){

// This jQuery.filter version handles selectors and callbacks.
// 
// Selector - ( selector, elems, [not] )
//   This is the original jQuery.filter signature.
// 	
// Callback - ( elems, callback, [thisObject], [inv] )
//   This is the old jQuery.grep signature enhanced to support the ECMA-262 filter signature.

jQuery.filter = function( a0, a1, inv ) {
	// Handle ( selector, elems, not )
	if ( typeof a0 === "string" ) {
		if ( inv ) {
			a0 = ":not(" + a0 + ")";
		}
	
		return a1.length === 1 ?
			jQuery.find.matchesSelector( a1[0], a0 ) ? [ a1[0] ] : [] :
			jQuery.find.matches( a0, a1 );
	}
	
	// Handle ( elems, filter, [thisObject], [inv] )
	
	var ret = [], elem, thisObject;
	
	if ( inv && inv !== true ) {
		thisObject = inv;
		inv = arguments[3];
	}
	
	for ( var i = 0, length = a0.length; i < length; i++ ) {
		elem = a0[i];
		
		if ( inv !== a1.call( thisObject || elem, elem, i, a0 ) ) {
			ret.push( elem );
		}
	}

	return ret;
};


// Make .grep() an alias of .filter().
jQuery.grep = jQuery.filter;


})(jQuery);