Re: C-x 3 *Choices* cutoff; C-x 4 map short changes C-x C-r

[Alignment Petrofsky]

kevinr@ihs.com (Kevin Rodgers) writes:

> Dan Jacobson wrote:
> > 
> > $ emacs -q
> > C-x 3 C-x C-f <tab> <tab>
> > 
> > Just look at how atrociously the *Choices* buffer with its obligatory
> > two columns is chopped off instead of even considering making itself
> > into a single column list.
> 
> This is a known problem, according to this comment in src/minibuf.c
> (Fdisplay_completion_list):
> 
>         /* This does a bad job for narrower than usual windows.
>            Sadly, the window it will appear in is not known
>            until after the text has been made.  */

An expensive way to fix this is to reformat the completion list from
the temp-buffer-show-hook, which is called after the window has been
chosen.

That's the approach taken by app-rearrange.el, which I posted to
gnu.emacs.sources last month.

-al