Re: flex/yacc--many multiple parsers in same program

cowden@leitess.com (Michael Cowden) writes:
>I'm looking to write a single interpreter that can simultaneously
>parse up to 96 separate programs.


> [The context for a yacc parse isn't all that hairy, so you might be able
> to package it up without too much misery. -John]


Did that once -- as I recall I used byacc as a starting point. I had some
sed scripts that packaged the globals up into structures (that is quite a
bit easier than modifying the byacc output routines), and put a pointer to
the lex state in the parse state struct.


flex was a different story; I just wrote my own lex, partly because
I was parsing strings and didn't need all flex's file handling logic
anyhow. flex global context is medium hairy, I'd say. Regards,
--
Tom Harwood zucco@world.std.com
President and Apprentice DBMS Hacker, Free SQL, Inc.
--

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