Re: [PATCH] Support "\n" in icomplete-separator

[Jean Louis]

* Gregory Heytings via "Emacs development discussions. <emacs-devel@gnu.org> 
[2020-11-11 13:32]:
> 
> > > > Applications have to accept that users want their minibuffer
> > > > windows to show just one line.  Or at most two lines.  Or three
> > > > ...
> > > 
> > > Also users: "Show us completions vertically" and (setq
> > > <icomplete/ido/etc>-separator "\n")
> > 
> > Users shouldn't want the cake and eat it too.  Any application should
> > take care of such users.
> > 
> 
> Of course, nobody is asking to display completion candidates vertically by
> default.

I prefer having completion candidates vertically for reason that
vertical line has longer length, thus I can read the completion
better.

Text on screen is vertically arranged, I expect textual buffers such
as minibuffers, if they are expanding to show me vertical
arrangement. In fact I felt surprised and confused when I discovered
ido completing horizontally.

The default `completing-read' in Emacs, when explicitly requested by
user by using TAB key is not horizontally shown but
vertically. Default also does not move mode line up and down but opens
split window. I can even move into the split window and do what I want
to find the match.

In fact in every description of a function that changes default one
shall describe that new feature to warn the user.

Description for icomplete-mode should say that it offers horizontal
completion as that is substantial difference to the built-in
completing-read.