/**
* This is used as a callback for preg_replace_callback
* The regex that triggers it looks for $$$(some number)%%% in the string.
* We return an empty string because we want to remove that, but we also instantiate
* a new parser to parse what was originally in that location.
* @param $matches array
* @return string
*/
protected function _processFilters($matches)
{
$filter_index = (int) $matches[1];
$filter = $this->_filters[$filter_index];
$parser = new Envalo_APath_Parser();
$this->_current_node->addFilter($parser->parse($filter));
return '';
}
/**
* Parse an APath type path into a set of Envalo_APath_Node objects
* @param $path
* @return array
*/
protected function _parse($path)
{
$parser = new Envalo_APath_Parser();
return $parser->parse($path);
}