Newscoop\Storage::replace PHP Method

    private function replace($old, $new, $replaceEngine = null)
    {
        if (!isset($replaceEngine)) {
            $replaceEngine = new \FileTextSearch();
        }
        $replaceEngine->setExtensions(array('tpl', 'css'));
        $replaceEngine->setSearchKey($old);
        $replaceEngine->setReplacementKey($new);
        $replaceEngine->findReplace($this->root);
        $tpl1_name = $old;
        $tpl2_name = $new;
        if (pathinfo($old, PATHINFO_EXTENSION) == 'tpl') {
            $tpl1_name = ' ' . $old;
            $tpl2_name = ' ' . $new;
        }
        $replaceEngine->setSearchKey($tpl1_name);
        $replaceEngine->setReplacementKey($tpl2_name);
        $replaceEngine->findReplace($this->root);
    }