Re: Redisplay hook

[Eli Zaretskii]

> From: Andreas Schwab <address@hidden>
> Cc: Mark Oteiza <address@hidden>,  address@hidden,  address@hidden
> 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).