protected function wrapLines($lines, $indentationLevel = 0)
    {
        if ($wrapper = $this->getOption('wrapper')) {
            $lines = explode("\n", $lines);
            for ($i = 0; $i < count($lines); $i++) {
                // first line ignored
                if ($i === 0) {
                    continue;
                }
                $line = $lines[$i];
                if ($indentationLevel && $i < count($lines) - 1) {
                    $line = str_repeat($this->getOption('indentation'), $indentationLevel) . $line;
                }
                $lines[$i] = sprintf($wrapper, $line);
            }
            $lines = implode("\n", $lines);
        }

        return $lines;
    }