code: function node_path_walk($elements, $rank, $ptype, &$i, &$line, $cvalue, $ncontent, $content, $code)
  	{
  		if (count($elements) == 1) {
  			$elt[$ptype . ':' . $i . ':' . $elements[0] . ':' . $cvalue] = $this->parse($code ? _ETS_CODE : $ptype, $i, $line, $ncontent, $content);
  		} else {
  			$element1 = array_shift($elements);
  			$masktype = ($ptype == _ETS_MIS || $ptype == _ETS_MISVAL) ? _ETS_MIS_TEMPLATE : _ETS_TEMPLATE;
  			$elt[$masktype . ':' . $i . '.' . $rank . ':' . $element1] = $this->node_path_walk($elements, $rank + 1, $ptype, $i, $line, $cvalue, $ncontent, $content, $code);
  		}
  		return $elt;
  	}
docs: Walk through a slash separated path of a node to build a tree