bug#59486: completion-auto-wrap disobeyed by vertical navigation

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Cc: 59486@debbugs.gnu.org
> Date: Fri, 25 Nov 2022 09:47:29 +0200
> 
> >> minibuffer-previous-* are intended to navigate the completion list
> >> horizontally while the minibuffer is active, and minibuffer-previous-line-*
> >> vertically.
> >
> > Then the names could be simplified as minibuffer-up-line and
> > minibuffer-down-line.  It will also make the names less confusing, IMO.
> 
> It's not only about the minibuffer, but also about completions,
> so the commands names should also include the word "completion".

minibuffer-up-completions-line is still shorter and less confusing.

> >> > But one immediate alternative is to use <LEFT> and <RIGHT> for
> >> > the minibuffer-previous-* family, like previous-completion does.
> >> 
> >> <LEFT> and <RIGHT> are useful to move point in the minibuffer.
> >
> > Then maybe PgUp and PgDn?
> 
> PgUp and PgDn are used to scroll the completions buffer from the minibuffer.

That's a bad idea, IMO: scrolling another window should use something like
M-PgDn and C-M-v, like we do with other windows elsewhere.

> > If the arrow keys are already taken, having an option that will change their
> > effect would be confusing, I think.
> 
> It does the same as icomplete-vertical-mode where the arrow keys
> are not confusing.

icomplete-vertical-mode is a an opt-in feature, so what it does is less
relevant to the issue at point, IMO.