/**
* parse query string, using query parser instance
* @return object of query parser or error message if an error occured
* @access public
*/
function &__parseQueryString($a_string, $a_combination_or = true)
{
$query_parser = new ilQueryParser(ilUtil::stripSlashes($a_string));
$query_parser->setCombination($a_combination_or ? QP_COMBINATION_OR : QP_COMBINATION_AND);
$query_parser->setMinWordLength(1);
$query_parser->setGlobalMinLength(3);
// #14768
$query_parser->parse();
if (!$query_parser->validate()) {
return $query_parser->getMessage();
}
return $query_parser;
}