Re: Allowing completion sources to customize completion display

[sbaugh]

Eli Zaretskii <eliz@gnu.org> writes:
>> From: sbaugh@catern.com
>> Date: Thu, 23 Nov 2023 12:38:22 +0000 (UTC)
>> Cc: Eshel Yaron <me@eshelyaron.com>, sbaugh@janestreet.com,
>>      emacs-devel@gnu.org
>> 
>> Eli Zaretskii <eliz@gnu.org> writes:
>> >
>> > IMNSHO, it will be a sad day when different completion sources will
>> > present different completion UI.  There will be no end to user
>> > confusion.
>> >
>> > Completion UI is a user preference, and if we want to support
>> > different UIs (as we already do), we should leave it to the user to
>> > specify the UI he/she prefers, and then abide by that.
>> 
>> Sure.  I, as a user, want to specify two different UIs for two different
>> completion sources.
>> 
>> Currently this is impossible.
>
> It shouldn't be possible.  Users should not need to be aware of the
> completion sources.

Why not?  I just explained a use case where users are definitely already
aware of the completion sources, and Eshel mentioned another one.