From: Alan Mackenzie <acm@muc.de>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: emacs-devel@gnu.org
Subject: Re: What's the best (i.e. least bad) way to re-redisplay?
Date: Wed, 25 Aug 2021 20:09:24 +0000 [thread overview]
Message-ID: <YSajdMKgL3OQqzmV@ACM> (raw)
In-Reply-To: <jwvlf4qeahl.fsf-monnier+emacs@gnu.org>
Hello, Stefan.
On Tue, Aug 24, 2021 at 18:43:04 -0400, Stefan Monnier wrote:
> > The problem is, there will be occurences in the foreground window before
> > the one which triggered the fontification. Redisplay will already have
> > passed this earlier buffer position. So I need to trigger another
> > redisplay immediately after the current one.
> > What is the least bad way of doing this?
> I think something along the lines of
> (run-with-timer 0 nil
> (lambda (buf)
> (with-current-buffer buf (font-lock-flush)))
> (current-buffer))
> is the cleanest that comes to mind.
Thanks. That's probably cleaner than a direct use of
jit-lock-force-redisplay. I'll just need to add BEG and END into that,
somehow, but font-lock-flush has these as &optional parameters, so that
won't be a problem.
But, looking at the code, font-lock-flush works by clearing the
'fontified property, nothing more. This won't always trigger a
redisplay, will it? Doesn't it need after-change-functions to be active
at the time? Maybe after-change-functions will always be active during
a redisplay (and hence immediately after redisplay completes), but my
head's beginning to hurt.
> Stefan
--
Alan Mackenzie (Nuremberg, Germany).
next prev parent reply other threads:[~2021-08-25 20:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-23 18:41 What's the best (i.e. least bad) way to re-redisplay? Alan Mackenzie
2021-08-23 19:35 ` Eli Zaretskii
2021-08-23 19:57 ` Eli Zaretskii
2021-08-24 10:56 ` Alan Mackenzie
2021-08-24 22:43 ` Stefan Monnier
2021-08-25 20:09 ` Alan Mackenzie [this message]
2021-08-25 20:36 ` Stefan Monnier
2021-08-26 6:37 ` Eli Zaretskii
2021-08-26 13:49 ` Stefan Monnier
2021-08-26 17:02 ` Alan Mackenzie
2021-08-26 19:27 ` Stefan Monnier
2021-08-30 18:10 ` Alan Mackenzie
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