protected function _parseRegistry($content = null)
{
$output = str_replace($this->_tagArray['registry']['search'], $this->_optionArray['delimiter'], $content);
$partArray = array_filter(explode($this->_optionArray['delimiter'], $output));
/* parse as needed */
foreach ($partArray as $key => $value) {
if ($key % 2) {
$partArray[$key] = $this->_registry->get($value);
}
}
$output = implode($partArray);
return $output;
}