Path: utzoo!utgpu!watmath!uunet!mcvax!unido!rubmez!frei
From: frei@rubmez.UUCP (Matthias Frei)
Newsgroups: gnu.utils.bug
Subject: diff's bison <-> YACC
Keywords: yacc bison errorhandling
Message-ID: <212@rubmez.UUCP>
Date: 9 Dec 88 15:42:52 GMT
Distribution: gnu
Organization: Ruhr Universitaet Bochum, W-Germany
Lines: 22

Hallo netlanders,

I've a great problem porting a yacc-grammar to bison.
one point is the variable yynerrs, used by yacc and not supported
from bison. 
Where do i have to declare and increment it ?

The next point is error-handling. I introduced error-symbols
in the grammar following kernighan & pike's rules. everything goes
ok using yacc. But bison produces errors even in an error-free
grammar, and can't recover from the first error produced by
the first token of the inputfile.

Did anybody have such problems ???

	any comments gracefully accepted
		Matthias Frei
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