PROLOG OBJECT-ORIENTED PACKAGE
                       Author: Ben Staveley-Taylor
                     Received sometime in early 1987
                  Shelved on the 10th of December 1987
                  Updated on the 10th of September 1988
         with small changes to improve portability suggested by
         Nick Youd (Cambridge University Engineering Department)


POEM comes in four files.

    POEM.PRE        - This file.
    POEM.TXT        - Documentation.
    POEM.PL         - The Prolog source of the translator.
    POEMSHAPES.PL   - A demonstration program.


To run  Poem, consult  POEMSHAPES.PL. It consults  POEM.PL right  at the
start: POEM then translates the  rest of POEMSHAPES; the translated code
puts out some demonstration answers.


CHECKED ON EDINBURGH-COMPATIBLE (POPLOG) PROLOG : yes.


PORTABILITY :

    See notes at the top of POEM.PL and POEMSHAPES.PL                   

DOCUMENTATION :

    (1) A separate description of  POEM's class description syntax, main
    predicates, and how class descriptions are translated into Prolog.

    (2) Comments in the program for important predicates and methods.