From: Minero Aoki <aamine@...>
Date: 2003-05-25T17:26:28+09:00
Subject: Re: How do I  report line no. on errors with racc?

Hi,

  In mail "How do I  report line no. on errors with racc?"
    Jim Freeze <jim@freeze.org> wrote:

> I am using racc to parse a file. I need to be able to
> report a clear error message when a syntax error is
> encountered. 
> 
> I don't think this can be done in the tokenizer (#parse)
> and I don't see how on_error yields a line number.

I don't think the parser can know the line number.  If the
tokenizer discards line terminators, how the parser counts
line number?

For example, the tokenizer reports line number in Racc
(racc/raccs.rb).


Regards,
Minero Aoki