string const & title, string const & pattern,
std::pair<string,string> const & dir1= std::make_pair(string(),string()),
std::pair<string,string> const & dir2 = std::make_pair(string(),string()));
string const & title, string const & pattern,
std::pair<string,string> const & dir1= std::make_pair(string(),string()),
std::pair<string,string> const & dir2 = std::make_pair(string(),string()));