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From: Francis Litterio <franl@world.std.com>
Newsgroups: gmane.emacs.devel
Subject: Re: CVS Emacs list-buffer-noselect calls set-window-buffer,
	displays every buffer briefly!
Date: Wed, 08 Sep 2004 11:02:57 -0400
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I wrote:

> 1. list-buffers-noselect calls set-window-buffer once for every buffer.
> 
> 2. set-window-buffer calls the functions on window-scroll-functions.
> 
> 3. The problem only happens when I'm running ERC (the Emacs IRC client).
> 
> 4. ERC adds the function erc-scroll-to-bottom to window-scroll-functions
>    (locally in each ERC buffer).
> 
> 5. erc-scroll-to-bottom calls recenter.

In fact, erc-scroll-to-bottom calls (sit-for 0), and sit_for calls
redisplay_preserve_echo_area.

I think this solves the puzzle, though we have to decide if
list-buffers-noselect should continue to call set-window-buffer, given
that set-window-buffer calls the hooks on window-scroll-functions.
--
Francis Litterio
franl@world.std.com
http://world.std.com/~franl/
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