Re: [Caml-list] Problem when parsing

[Laurent Reveillere <Laurent.Reveillere@labri.u-bordeaux.fr>]

Jean-Christophe Filliatre wrote:
> 
> Laurent Reveillere writes:
>  > I wrote a small parser for iso C which does nothing (for now).
>  > The lexer and parser files are well compiled by ocamllex and ocamlyacc.
>  > But when I run the generated program, I have the following error :
>  >
>  > Fatal error: uncaught exception Failure(lexing: empty token)
> 
> This exception is raised by the lexer when input does not match any of
> the lexer rules.  So it has probably to do with  your lexer rules, not
> with your parser rules.
> 
> Hope this helps,
> --
> Jean-Christophe FILLIATRE
>   mailto:Jean-Christophe.Filliatre@lri.fr
>   http://www.lri.fr/~filliatr


Yes, I fixed the problem. The error came from the fact that I forgot a
rule for eof in my lexer. Still, I would like to know why the eof
special char is not match by a rule like
	 | _ -> raise (Failure "unknown token") 


-- 
Lauren
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