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From: vern@daffy.ee.lbl.gov (Vern Paxson)
Newsgroups: comp.lang.c++
Subject: Re: Yacc/Lex and C++
Summary: use bison and flex
Keywords: yacc, lex
Message-ID: <10627@dog.ee.lbl.gov>
Date: 5 Mar 91 20:00:51 GMT
References: <27294@uflorida.cis.ufl.EDU>
Reply-To: vern@daffy.ee.lbl.gov (Vern Paxson)
Organization: Lawrence Berkeley Laboratory, Berkeley
Lines: 18
X-Local-Date: Tue, 5 Mar 91 12:00:52 PST

In article <27294@uflorida.cis.ufl.EDU> yms@cis.ufl.edu (Yuh-Ming Shyy) writes:
>Hi, is there anyone who knows whether the output of 
>Yacc and Lex program (C) can be compatiable with C++ 
>programs? Or, is there any C++ version of Yacc/Lex 
>where the user-defined functions can be C++ programs? 

Boy, this question just keeps getting asked and asked.  Yes, bison and flex
generate parsers and scanners that are compatible with C++, i.e., you can
use C++ code for the actions and compile the programs' output using g++ or
cfront.  Yacc parsers appear to work, too, except possibly for some warnings
and (at least on Suns) an old-style declaration of malloc() and realloc()
that needs to be removed.

		Vern

	Vern Paxson				vern@ee.lbl.gov
	Real Time Systems			ucbvax!ee.lbl.gov!vern
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