Re: creating non-GPL'ed C++ parser code -- flex++ and yacc?

corbett@lupa.Eng.Sun.COM (Robert Corbett) writes:
> Tim Converse <converse@cs.uchicago.edu> wrote:
> >Does anyone know if yacc can generate C++ code? If not, does anyone
> >have any suggestions about how to produce non-GPL'ed parser code in
> >C++? (Any suggestions, that is, other than the obvious one: writing
> >it myself. :)
>
> Berkeley Yacc is public-domain. You could modify the parser skeleton
> to have it produce C++ instead of C.


Note that the licensing of bison's parser skeleton has changed to be less
restrictive, so it might be a possiblity too.


>From File: bison.info, Node: Conditions:
        Conditions for Using Bison
        **************************
              As of Bison version 1.24, we have changed the distribution terms for
        `yyparse' to permit using Bison's output in non-free programs.
        Formerly, Bison parsers could be used only in programs that were free
        software.


bison.simple contains:
        /* As a special exception, when this file is copied by Bison into a
              Bison output file, you may use that output file without restriction.
              This special exception was added by the Free Software Foundation
              in version 1.24 of Bison. */
--
T. Kurt Bond, tkb@access.mountain.net
--

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