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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: on helm substantial differences - Re: [PATCH] Support "\n" in
 icomplete-separator
Date: Thu, 12 Nov 2020 16:41:28 +0200
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Cc: spacibba@aol.com, andreyk.mad@gmail.com, emacs-devel@gnu.org,
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To: Jean Louis <bugs@gnu.support>
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In-Reply-To: <X6z8s0NKmxcj3ntF@protected.rcdrun.com> (message from Jean Louis
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> Date: Thu, 12 Nov 2020 12:13:23 +0300
> From: Jean Louis <bugs@gnu.support>
> Cc: Eli Zaretskii <eliz@gnu.org>, rudalics@gmx.at, spacibba@aol.com,
>   monnier@iro.umontreal.ca, andreyk.mad@gmail.com, emacs-devel@gnu.org
> 
> Emacs completion is based on the minibuffer. Helm completion is based
> on the completion window.

No, the default Emacs completion is also based on a separate window
showing the completion candidates in a special buffer *Completions*,
when there are more than one.  It is optional features like icomplete
and ivy that use the minibuffer for showing the completion candidates.