Preccx

1 definition found

From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:

  PRECCX
       
           (Pre-C-Compiler eXtended) An infinite-{lookahead}
          {compiler-compiler} by Peter Breuer  for
          {context dependent grammars}.  PRECCX generates {ANSI C}.
          Specification scripts are in very {EBNF} with {inherited


          attributes} and {synthetic attributes} allowed.  Scripts can
          be compiled in separate {modules} and linked later.
          {Meta-production rules} are allowed.  Grammars can be
          essentially LL(oo) with optimisations.  A converter for {yacc}
          scripts is available.
       
          Versions 1.xx were known as "PRECC" and only had unbounded
          lookahead.  The 2.xx series added the "X" for "extended" and
          featured higher order parameterisation (inherited attributes).
       
          Version 2.42 integrates inherited and synthesized attributes
          by using a "monadic" model for parsing.  You can now synthsize
          attributes during the pass and inherit them in the remainder,
          e.g.
       
          	@ foo = bar\x gum(x)
       
          synthesises an x in bar and passes it down into gum as a
          parameter.  Useful for @ what = ?\x did_you_say(x), for
          example.  It now compiles into {C} instead of running an
          {interpreter} at parse-time.
       
          Version 2.42 runs under {Unix} and {MS-DOS}.
       
          {Home (http://www.comlab.ox.ac.uk/archive/redo/precc.html)}.
       
          E-mail: Peter Breuer , Jonathan Bowen
          .
       
          ["The PRECC Compiler-Compiler" by P.T. Breuer and J.P. Bowen.
          In E. Davies and A. Findlay (eds.), Proc. UKUUG/SUKUG Joint
          New Year 1993 Conference, St. Cross Centre, Oxford, UK, 6-8
          January 1993, ISBN 1 873611 06 4 (UKUUG), 0 9520700 0 6
          (SUKUG) UKUUG/SUKUG Secretariat, Owles Hall, Buntingford,
          Herts SG9 9PL, UK, pp 167-182, 1993].
       
          (2000-04-24)