From: Eli Zaretskii <eliz@gnu.org>
To: Alan Mackenzie <acm@muc.de>
Cc: monnier@iro.umontreal.ca, emacs-devel@gnu.org
Subject: Re: Questionable code in handling of wordend in the regexp engine in regex-emacs.c
Date: Fri, 01 Mar 2019 18:22:39 +0200 [thread overview]
Message-ID: <83zhqeh8ds.fsf@gnu.org> (raw)
In-Reply-To: <20190301145856.GE5674@ACM> (message from Alan Mackenzie on Fri, 1 Mar 2019 14:58:56 +0000)
> Date: Fri, 1 Mar 2019 14:58:56 +0000
> Cc: monnier@iro.umontreal.ca, emacs-devel@gnu.org
> From: Alan Mackenzie <acm@muc.de>
>
> > > Thanks, I didn't know that. Maybe we should put an assert into the code,
> > > like Stefan suggested.
>
> > We could try.
>
> How about this, as a first approximation?
> [...]
> + /* Check BYTEPOS was at a character boundary. */
> + eassert (best_below_byte == bytepos);
Actually, what I had in mind was a simple
eassert (CHAR_HEAD_P (BUF_FETCH_BYTE (b, bytepos)));
right at the beginning of buf_bytepos_to_charpos. But maybe if you
explain why you wanted a different assertion, I will change my mind.
next prev parent reply other threads:[~2019-03-01 16:22 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-22 16:45 Questionable code in handling of wordend in the regexp engine in regex-emacs.c Alan Mackenzie
2019-02-23 23:15 ` Stefan Monnier
2019-02-25 18:56 ` Alan Mackenzie
2019-02-25 19:18 ` Stefan Monnier
2019-03-01 11:10 ` Alan Mackenzie
2019-03-01 13:41 ` Stefan Monnier
2019-03-01 13:46 ` Eli Zaretskii
2019-03-01 14:14 ` Alan Mackenzie
2019-03-01 14:43 ` Eli Zaretskii
2019-03-01 14:58 ` Alan Mackenzie
2019-03-01 16:22 ` Eli Zaretskii [this message]
2019-03-01 16:38 ` Alan Mackenzie
2019-03-01 19:16 ` Alan Mackenzie
2019-03-01 19:31 ` Eli Zaretskii
2019-03-02 11:16 ` Alan Mackenzie
2019-03-02 12:18 ` Eli Zaretskii
2019-03-02 13:18 ` Alan Mackenzie
2019-03-02 13:37 ` Eli Zaretskii
2019-03-04 17:25 ` Eli Zaretskii
2019-03-05 10:51 ` Alan Mackenzie
2019-03-05 16:26 ` Eli Zaretskii
2019-03-02 12:21 ` Eli Zaretskii
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