protected function createCode($code, $prefix = '<?php ', $suffix = '?>')
    {

        if (strpos($code, "\n") !== false) {

            $this->level++;
            $code = implode($this->newLine().$this->indent(), preg_split("/\n[\t ]*/", $code))
                .$this->newLine().$this->indent(-1);
            $this->level--;
        }

        return $prefix.$code.$suffix;
    }