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From: Juri Linkov <juri@linkov.net>
To: Daniel Mendler <mail@daniel-mendler.de>
Cc: Gregory Heytings <gregory@heytings.org>,
	"emacs-devel@gnu.org" <emacs-devel@gnu.org>,
	Stefan Monnier <monnier@iro.umontreal.ca>,
	Dmitry Gutov <dgutov@yandex.ru>
Subject: Re: [PATCH] `completing-read`: Add `group-function` support to completion metadata (REVISED PATCH VERSION 4)
Date: Mon, 10 May 2021 23:47:46 +0300	[thread overview]
Message-ID: <87pmxywc25.fsf@mail.linkov.net> (raw)
In-Reply-To: <f33e71dc-0119-c6c3-b0d5-1648cf5e412a@daniel-mendler.de> (Daniel Mendler's message of "Sun, 9 May 2021 20:50:04 +0200")

> So what is the plan regarding the patch? Use the variant which has the
> action argument (title, transform, sort) or use the variant with the
> boolean transform argument, which does not allow sorting of the groups?
>
> Stefan stated in his mail that letting the UI decide if the groups
> should be sorted alphabetically is also a possibility. We can implement
> this proposal by adding a `completions-sort` variable to minibuffer.el,

Probably you meant to name it `completions-group-sort`
since the name `completions-sort` is too ambiguous?

Then such an option could support any function to perform sorting,
and when necessary the API user could let-bind it around
the API call, e.g. in the case of the ucs-char-names:

diff --git a/lisp/international/mule-cmds.el b/lisp/international/mule-cmds.el
index 5a7e417b8e..e7b56dd8e0 100644
--- a/lisp/international/mule-cmds.el
+++ b/lisp/international/mule-cmds.el
@@ -3161,6 +3161,10 @@ read-char-by-name
   (let* ((enable-recursive-minibuffers t)
 	 (completion-ignore-case t)
 	 (completion-tab-width 4)
+	 (completions-group-sort
+	  (if read-char-by-name-group-sort
+	      (lambda (a b) (string< (car a) (car b)))
+	    completions-group-sort))
 	 (input
 	  (completing-read
 	   prompt

This is just an example, I'm not sure if read-char-by-name-group-sort is
really needed, but this example demonstrates that it's up to the user to
define options more specific to the completion table.



  parent reply	other threads:[~2021-05-10 20:47 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-25 13:32 [PATCH] `completing-read`: Add `group-function` support to completion metadata Daniel Mendler
2021-04-25 19:35 ` Dmitry Gutov
2021-04-25 19:47   ` Daniel Mendler
2021-04-25 21:50     ` Dmitry Gutov
2021-04-25 22:10       ` Daniel Mendler
2021-04-25 22:40         ` Dmitry Gutov
2021-04-25 22:58           ` Daniel Mendler
2021-04-26  4:51             ` Protesilaos Stavrou
2021-04-27 16:53               ` Juri Linkov
2021-04-28  6:18                 ` Protesilaos Stavrou
2021-04-25 23:33           ` Stefan Monnier
2021-04-26 10:01             ` Daniel Mendler
2021-04-26 13:50               ` Stefan Monnier
2021-04-27  1:46             ` Dmitry Gutov
2021-04-27  1:59               ` tumashu
2021-04-27  2:45                 ` Daniel Mendler
2021-04-27 15:47                 ` Dmitry Gutov
2021-04-27  3:41               ` Stefan Monnier
2021-04-28  0:08                 ` Dmitry Gutov
2021-04-28  3:21                   ` Stefan Monnier
2021-04-25 19:38 ` [PATCH] `completing-read`: Add `group-function` support to completion metadata (REVISED PATCH) Daniel Mendler
2021-04-25 20:45   ` Juri Linkov
2021-04-25 21:26     ` Daniel Mendler
2021-04-29 16:20   ` Juri Linkov
2021-04-29 16:52     ` Daniel Mendler
2021-04-29 17:07     ` Stefan Monnier
2021-04-29 17:13       ` Daniel Mendler
2021-04-29 22:54         ` Juri Linkov
2021-04-29 23:55           ` [PATCH] `completing-read`: Add `group-function` support to completion metadata (REVISED PATCH VERSION 2) Daniel Mendler
2021-04-30  9:00             ` Daniel Mendler
2021-04-30 17:01               ` Juri Linkov
2021-04-30 18:11                 ` Daniel Mendler
2021-04-30 18:30                   ` Daniel Mendler
2021-05-01 19:57                     ` Juri Linkov
2021-05-02  0:43                       ` Daniel Mendler
2021-05-02  7:07                         ` Eli Zaretskii
2021-05-02 11:01                           ` Daniel Mendler
2021-04-30 16:51             ` Juri Linkov
2021-04-30 18:13               ` Daniel Mendler
2021-05-01 19:54                 ` Juri Linkov
2021-05-02  0:32                   ` Daniel Mendler
2021-05-02 21:38                     ` Juri Linkov
2021-05-07 17:03                       ` Juri Linkov
2021-05-07 17:55                         ` Daniel Mendler
2021-05-08  6:24                           ` Daniel Mendler
2021-05-08  8:45                             ` [PATCH] `completing-read`: Add `group-function` support to completion metadata (REVISED PATCH VERSION 4) Daniel Mendler
2021-05-08  9:10                               ` Daniel Mendler
2021-05-09 17:59                                 ` Juri Linkov
2021-05-09 18:50                                   ` Daniel Mendler
2021-05-09 18:56                                     ` Stefan Monnier
2021-05-09 19:11                                       ` Daniel Mendler
2021-05-10 20:47                                     ` Juri Linkov [this message]
2021-05-11  7:51                                       ` [PATCH] `completing-read`: Add `group-function` support to completion metadata (REVISED PATCH VERSION 5) Daniel Mendler
2021-05-11 17:59                                         ` Juri Linkov
2021-05-08 13:15                         ` [PATCH] `completing-read`: Add `group-function` support to completion metadata (REVISED PATCH VERSION 2) Stefan Monnier
2021-05-09 18:05                           ` Juri Linkov
2021-05-09 18:37                             ` Eli Zaretskii
2021-05-11 18:06                               ` Juri Linkov
2021-05-11 18:44                                 ` Eli Zaretskii
2021-05-11 18:58                                   ` Daniel Mendler
2021-05-11 19:22                                     ` Eli Zaretskii
2021-05-11 19:46                                       ` Daniel Mendler
2021-05-11 19:59                                         ` Eli Zaretskii
2021-05-11 20:30                                           ` [PATCH] `completing-read`: Add `group-function` support to completion metadata (REVISED PATCH VERSION 6) Daniel Mendler
2021-05-13 10:32                                             ` Eli Zaretskii
2021-05-13 11:45                                               ` [PATCH] `completing-read`: Add `group-function` support to completion metadata (REVISED PATCH VERSION 7) Daniel Mendler
2021-05-20  9:39                                                 ` Daniel Mendler
2021-05-20 17:53                                                   ` Juri Linkov
2021-05-20 18:51                                                     ` Daniel Mendler
2021-04-29 17:09     ` [PATCH] `completing-read`: Add `group-function` support to completion metadata (REVISED PATCH) Dmitry Gutov
2021-04-29 17:16       ` Daniel Mendler
2021-04-29 17:55         ` Dmitry Gutov
2021-04-29 18:31           ` [External] : " Drew Adams
2021-04-29 20:25             ` Dmitry Gutov
2021-04-29 22:15               ` Drew Adams
2021-04-29 22:28                 ` Dmitry Gutov
2021-04-29 23:31                   ` Drew Adams
2021-04-29 19:21           ` Daniel Mendler
2021-05-02 14:29   ` [PATCH] `completing-read`: Add `group-function` support to completion metadata (REVISED PATCH VERSION 3) Daniel Mendler
2021-05-02 21:49     ` Juri Linkov
2021-05-03 14:40       ` Daniel Mendler

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