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From: nntp@informatik.uni-erlangen.de (nntp@faui45)
Newsgroups: comp.unix.questions
Subject: Re: Yacc & Lex problem
Message-ID: <1991Mar8.132654.21046@informatik.uni-erlangen.de>
Date: 8 Mar 91 13:26:54 GMT
References: <26202@adm.brl.mil>
Sender: richter@immd4.informatik.uni-erlangen.de (Joachim Richter)
Reply-To: richter@medusa.UUCP ()
Organization: Friedrich-Schiller-Universitaet Jena
Lines: 18

> [yacc example deleted]

Have you tried compiling with -DYYDEBUG and setting
extern int yydebug;
to non-zero? This will be useful in determining what a
yacc-parser does at run time.

The first thing I would look at : Does your lexica analyzer
really recognize the 'else' ? Are you sure?? Really ??? (How?)

If this does'nt help, I'm willing to help you if you send me
the source (via email).
So far as I can see, your grammar is correct (but I saw only few
relevant lines!)

BTW, such questions are usually discussed in comp.lang.misc, comp.lang.c
or comp.compilers.
			See you(r postings/mail)  Ingo