Re: Strange recenter-top-bottom behaviour in CVS

[Paul Michael Reilly <pmr@pajato.com>]

Yoni Rabkin wrote:
> I'm seeing strange recenter-top-bottom (C-l) behaviour in CVS
> Emacs. Here is how I can recreate this on my machine.
> 
> 1. I ran: emacs-23.0.60 -q
> 
>    Which is: GNU Emacs 23.0.60.2 (i686-pc-linux-gnu, X toolkit, Xaw3d
>              scroll bars) of 2008-02-02
> 
> 2. Load the text of GPLv3 in Text mode (for example, but this happens in
>    other modes as well).
> 
> 3. Move point to down to line 40.
> 
> 4. Enter <C-l>. As a result line 40 goes to the center of the screen
>    (%3), and so far so good.
> 
> 5. Enter <C-l> a second time. As a result line 40 goes to the very top
>    of the screen (%6).
> 
> 6. Enter <C-l> a third time. As a result line 40 goes to the near the
>    bottom of the screen (top of the buffer in view).
> 
> 7. Enter <C-l> a forth time. The results are as if you are back at step
>    (4).
> 
> An instance of Emacs 22 I have around behaves normally (every subsequent
> C-l stays in place, like step (4)).
> 

Damn that's nice!  Sometimes it is so hard to keep track of all the new 
features that get added to the code base.  This one in particular 
slipped by my notice but now that I see what it is, my opinion is that 
it is very helpful feature.  I think thanks are due to Drew Adams(?) for 
adding it.

-pmr