From: Francis Cianfrocca <garbagecat10@...>
Date: 2006-09-15T11:32:33+09:00
Subject: Re: Regular expression question.

------=_Part_6984_285919.1158287506407
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

On 9/14/06, Tom Copeland <tom@infoether.com> wrote:
>
>  I'm not sure if it's impossible to parse out C-style comments using a
> regular expression, but the various JavaCC grammars I've seen all use
> lexical states to do it instead.  Another complication is trigraphs (*),
> although I think those are unrecognized by default in most C
> preprocessors.


 One more point. Someone upthread gave an example similar to this:

/* printf ("*/"); */

Considered strictly as a lexical construction, I think this is regular.
However, I have a funny feeling that this:

/* printf ("/*......*/"); */

is actually context-free. Does anyone know for sure?

------=_Part_6984_285919.1158287506407--