Many thanks to Damian Conway for his excellent Parse::Recdescent
package. I have included a copy of it here to prevent problems with
differing versions and pidl. The original package is distributed with
the following copyright:

COPYRIGHT

       Copyright (c) 1997-2000, Damian Conway. All Rights Reserved.
       This module is free software. It may be used, redistributed
       and/or modified under the terms of the Perl Artistic License
       (see http://www.perl.com/perl/misc/Artistic.html)