FluidXml\CssTranslator::translateStack PHP Метод

    protected static function translateStack(&$stack, &$xpath)
    {
        do {
            $matches_count = \preg_match_all(self::TOKEN, $xpath, $matches, \PREG_SET_ORDER);
            for ($i = 0; $i < $matches_count; ++$i) {
                list(, $type, $id) = $matches[$i];
                $id = \intval($id);
                list($replace, $groups) = $stack[$id];
                foreach ($groups as $k => $v) {
                    $replace = \str_replace("\\{$k}", $v, $replace);
                }
                $xpath = \str_replace("{{$type}{$id}}", $replace, $xpath);
            }
        } while ($matches_count > 0);
    }