protected static function _endString(&$encode, $position, &$pos)
{
do {
$position = strpos($encode, '"', $position + 1);
} while ($position !== false && GantryJSON::_slashedChar($encode, $position - 1));
if ($position === false) {
JError::raiseWorning(500, 'Invalid JSON');
}
return $position - $pos;
}