GNU bug report logs - #47711
27.1; Deferred highlighting support in `completion-all-completions', `vertico--all-completions`

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Message #14 received at 47711 <at> debbugs.gnu.org (full text, mbox):

From: Daniel Mendler <mail <at> daniel-mendler.de>
To: "emacs-devel <at> gnu.org" <emacs-devel <at> gnu.org>
Cc: João Távora <joaotavora <at> gmail.com>,
 47711 <at> debbugs.gnu.org, Stefan Monnier <monnier <at> iro.umontreal.ca>,
 48841 <at> debbugs.gnu.org, Dmitry Gutov <dgutov <at> yandex.ru>
Subject: [PATCH] Add new `completion-filter-completions` API and deferred
 highlighting
Date: Wed, 11 Aug 2021 16:16:57 +0200

[Message part 1 (text/plain, inline)]

I prepared a patch which provides the API
`completion-filter-completions`. This function supports deferred
highlighting and returns additional data with the list of matching
completion candidates. The API supersedes the existing function
`completion-all-completions`.

The main goal of the new API is to avoid expensive string allocations
and highlighting during completion. This is particularly relevant for
continuously updating completion UIs like Icomplete or Vertico.
Furthermore the end position of the completion boundaries is returned
with the completion results. This information is not provided by the
existing `completion-all-completions` API.

See also the relevant bugs bug#47711 and bug#48841. I am looking forward
to your feedback. Thank you!

Daniel Mendler

[0001-Add-new-completion-filter-completions-API-and-deferr.patch (text/x-diff, attachment)]

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