This function parses through the memo files and compares them to the filter options. If a memo file fulfills the conditions, the function writes the filepointer to m_fp and the name to m_name and returns true, false otherwise. dir specifies whether the function parses forward (true) or backward (false).

This function is used by M_SELECT! primarily. If an application calls this function directly, it has to adjust the global variables m_cat, m_fp, m_mode, m_flt and m_check before; see M_SELECT! for more details.