Source : Free On-Line Dictionary of Computing

perl-byacc
     
        A modified version of {byacc} that generates a {parser} in
        {Perl} code, by Rick Ohnemus .  It has
        a "-p" switch so multiple parsers can be used in one program
        ({C} or Perl).  Version 1.8.2 should work on most {Unix}
        systems.  It also works with {SAS/C} 6.x on {Amiga}.
     
        (1993-01-24)