/**
* Joins an XPath expression as an indirect adjacent of another.
*
* @param XPathExpr $xpath The parent XPath expression
* @param NodeInterface $sub The indirect adjacent NodeInterface object
*
* @return XPathExpr An XPath instance
*/
protected function _xpath_indirect_adjacent($xpath, $sub)
{
// when sub comes somewhere after xpath as a sibling
$xpath->join('/following-sibling::', $sub->toXpath());
return $xpath;
}
