DuckCorp Dico

Found one definition

1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   aflex
      <tool> A Lex-like scanner generator that produce Ada
      output from IRUS (Irvine Research Unit in Software).  aflex
      comes with ayacc.
      Version 1.2a.
      Mailing list: <irus-software-request@ics.uci.edu>.
      (ftp://liege.ics.uci.edu/pub/irus/aflex-ayacc_1.2a.tar.Z).
      (1993-01-06)