//>>excludeStart("exclude", pragmas.exclude);
define([ "shoestring" ], function(){
//>>excludeEnd("exclude");

	/**
	 * Returns the set of all parents matching the selector if provided for each element in the current set.
	 *
	 * @param {string} selector The selector to check the parents with.
	 * @return shoestring
	 * @this shoestring
	 */
	shoestring.fn.parents = function( selector ){
		var ret = [];

		this.each(function(){
			var curr = this, match;

			while( curr.parentElement && !match ){
				curr = curr.parentElement;

				if( selector ){
					if( curr === shoestring( selector )[0] ){
						match = true;

						if( shoestring.inArray( curr, ret ) === -1 ){
							ret.push( curr );
						}
					}
				} else {
					if( shoestring.inArray( curr, ret ) === -1 ){
						ret.push( curr );
					}
				}
			}
		});

		return shoestring(ret);
	};

//>>excludeStart("exclude", pragmas.exclude);
});
//>>excludeEnd("exclude");