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From: Eli Zaretskii <eliz@gnu.org>
To: Andreas Schwab <schwab@suse.de>
Cc: mvoteiza@udel.edu, rms@gnu.org, emacs-devel@gnu.org
Subject: Re: Redisplay hook
Date: Mon, 04 Jul 2016 17:52:47 +0300	[thread overview]
Message-ID: <83furppi9s.fsf@gnu.org> (raw)
In-Reply-To: <mvm1t394yvx.fsf@hawking.suse.de> (message from Andreas Schwab on Mon, 04 Jul 2016 09:59:30 +0200)

> From: Andreas Schwab <schwab@suse.de>
> Cc: Mark Oteiza <mvoteiza@udel.edu>,  rms@gnu.org,  emacs-devel@gnu.org
> Date: Mon, 04 Jul 2016 09:59:30 +0200
> 
> >> Well, pre-redisplay-functions already exists, and it appears to be a hook
> >> with equal potential for making trouble.
> >
> > No, because it runs _before_ redisplay.
> 
> But a post-redisplay hook should not be any more dangerous than a
> post-command hook.  Like the latter it could just be disabled
> automatically if anything went wrong.

It's not much more dangerous, by and large, but I think it's slightly
more dangerous, because it will most probably run from within the
display code, and thus runs the risk of triggering an infinite
redisplay loop.  By contrast, a post-command hook cannot trigger
another post-command hook (AFAIU).



      reply	other threads:[~2016-07-04 14:52 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-02 19:24 Redisplay hook Clément Pit--Claudel
2016-07-03  3:27 ` Eli Zaretskii
2016-07-03  4:36   ` Clément Pit--Claudel
2016-07-03  7:45     ` Eli Zaretskii
2016-07-03 14:23       ` Clément Pit--Claudel
2016-07-03 14:51         ` Clément Pit--Claudel
2016-07-03 15:37         ` Eli Zaretskii
2016-07-04  0:05       ` Clément Pit--Claudel
2016-07-04  2:41         ` Eli Zaretskii
2016-07-04  4:31           ` Clément Pit--Claudel
2016-07-04 14:47             ` Eli Zaretskii
2016-07-04 16:14               ` Clément Pit--Claudel
2016-07-04 16:24                 ` Eli Zaretskii
2016-07-04  7:55           ` Stefan Monnier
2016-07-04 14:52             ` Eli Zaretskii
2016-07-04 16:07             ` Clément Pit--Claudel
2016-07-04 20:37               ` Robert Weiner
2016-07-04 21:00                 ` Clément Pit--Claudel
2016-07-04 21:28                   ` Robert Weiner
2016-07-04 21:50                     ` Clément Pit--Claudel
2016-07-04 21:29                   ` Drew Adams
2016-07-04 21:36                     ` Clément Pit--Claudel
2016-07-04 21:57                   ` raman
2016-07-04 22:11                     ` Clément Pit--Claudel
2016-07-05 22:59                   ` Richard Stallman
2016-07-05 23:47                     ` Clément Pit--Claudel
2016-07-03 22:34   ` Richard Stallman
2016-07-04  0:09     ` Clément Pit--Claudel
2016-07-04  2:42       ` Eli Zaretskii
2016-07-04  0:22     ` Mark Oteiza
2016-07-04  2:42       ` Eli Zaretskii
2016-07-04  7:59         ` Andreas Schwab
2016-07-04 14:52           ` Eli Zaretskii [this message]

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