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Re: master 69ec333eab0: Allow customizing partial-completion to be more


From: Spencer Baugh
Subject: Re: master 69ec333eab0: Allow customizing partial-completion to be more like substring
Date: Mon, 23 Sep 2024 15:36:10 -0400
User-agent: Gnus/5.13 (Gnus v5.13)

Eli Zaretskii <eliz@gnu.org> writes:
>> Date: Sat, 14 Sep 2024 11:47:42 +0300
>> From: Eli Zaretskii <eliz@gnu.org>
>> Cc: emacs-devel@gnu.org
>> 
>> > Date: Fri, 06 Sep 2024 13:23:19 -0400
>> > From:  Spencer Baugh via "Emacs development discussions." 
>> > <emacs-devel@gnu.org>
>> > Eli Zaretskii <eliz@gnu.org> writes:
>> > > Spencer, would you please take care of these gotchas?
>> > 
>> > The attached patch does so.
>> 
>> Thanks, installed.  But the new single-or-list feature should be
>> documented in the ELisp manual.
>
> Ping! single-or-list is still undocumented, AFAICT.  We should
> document it ASAP, as it is not good to have on the master branch
> features which are not reflected in the documentation.
>
> TIA

I started writing documentation, but I came to the conclusion that most
users other than completion-styles should use the "group" widget
instead.  And documenting single-or-list would encourage using it
instead of group, which I don't think is correct.

Maybe this widget should just be moved to minibuffer.el?

Alternatively, if there are any other customizable variables or values
in Emacs which are sometimes a single value, and sometimes a list, then
this widget would be useful for those.  If we can think of any such
variables, then that would help justify the existence of single-or-list
(and I would convert their defcustoms to use single-or-list).  That
would help in writing documentation about when exactly to use it.



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