Function dir

jquery.js:2468–2481

( elem, dir, until )

find.tokenize = tokenize;

function dir( elem, dir, until ) {
	var matched = [],
		truncate = until !== undefined;

	while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
		if ( elem.nodeType === 1 ) {
			if ( truncate && jQuery( elem ).is( until ) ) {
				break;
			}
			matched.push( elem );
		}
	}
	return matched;
}

function siblings( n, elem ) {
	var matched = [];