From:	"Campbell, Rolf [SKY:1U32:EXCH]" <cp1v45 AT americasm01 DOT nt DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Bison help
Date:	Mon, 28 Jun 1999 10:55:44 -0400
Organization:	Nortel Networks
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To:	djgpp AT delorie DOT com
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Denis Lamarche wrote:

> ya, but then I would have to go:
>
> exp:  FUNC2 '(' exp ',' exp ')'  {$$ = func2($3,$5);}
> exp:  FUNC2 '(' exp ',' exp ',' exp ')'  {$$ = func2($3,$5,$7);}
> exp:  FUNC2 '(' exp ',' exp ',' exp ',' exp')'  {$$ =
> func2($3,$5,$7,$9);}
>
> and so on...isnt there a way I could do it for all possibilities?

    Oh, so you want to accept something like printf in C?

OK, that's tougher, but here's what comes to mind:

fcallBegin: FUNC '('  {$$.clear();  $$.add($1);}
| fcallBegin exp ','  {$$.add($2);}

fcall: fcallBegin ')'  {func($$);}

    Here, you would have to make some sort of list class (or the equivalent
in C), and it would hold the function name & all of the arguments passed to
it.  You would need to code a wrapper for the function you want to call that
accepts the list class and does the real call itself.

--
     -Rolf Campbell (39)3-6318

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