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Date: Wed, 16 Jul 2025 14:22:47 +0300
Message-Id: <861pqgjs6w.fsf@HIDDEN>
From: Eli Zaretskii <eliz@HIDDEN>
To: Stephen Berman <stephen.berman@HIDDEN>
In-Reply-To: <87zfd5s8fn.fsf@HIDDEN> (message from Stephen Berman on Tue, 15
Jul 2025 18:52:28 +0200)
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
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> From: Stephen Berman <stephen.berman@HIDDEN>
> Cc: juri@HIDDEN, 78959 <at> debbugs.gnu.org, dmoncayo@HIDDEN
> Date: Tue, 15 Jul 2025 18:52:28 +0200
>
> On Tue, 15 Jul 2025 18:36:04 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>
> >> From: Stephen Berman <stephen.berman@HIDDEN>
> >> Cc: juri@HIDDEN, 78959 <at> debbugs.gnu.org, dmoncayo@HIDDEN
> >> Date: Tue, 15 Jul 2025 16:13:28 +0200
> [...]
> >> The issue of this bug report is that 'n' and 'p' (and 'M-<down>' and
> >> 'M-<up>') should move point through all completions in the sorted order
> >> regardless of the completions format, i.e. horizontally (column-wise)
> >> for horizontal format (which the current code does do) and vertically
> >> (line-wise) for vertical format, which the current code does not do. My
> >> first patch changed `{next,previous}-completion' to DTRT in vertical
> >> format but at the cost of convoluted code; Juri pointed out that a much
> >> simpler implementation using the existing navigation commands was
> >> possible, but to use the same bindings for navigation in both formats,
> >> it was easiest to introduce new commands that delegated to the existing
> >> ones based on the completions format, and that's what my last two
> >> patches do (though some changes to the line-wise commands were still
> >> necessary).
> >
> > Why not the other way around: have the existing commands delegate to
> > new functions when the format is vertical? AFAIU, that would avoid
> > the need to rebind the keys to new commands and having the new
> > commands delegate to old. As a nice bonus, it also frees us from the
> > need to consider the old names, and we are free to introduce new
> > commands with -vertically in their names.
> >
> > Or what am I missing?
>
> There is no need for new commands for navigating vertical format:
> `{next,previous}-line-completion' already do that (but in the current
> (unpatched) code they navigate only within a single column, not through
> all completions, like `{next,previous}-completion' do for horizontal
> format). In the current (unpatched) code, the latter commands are bound
> in `completion-list-mode-map' to both {right,left} and {n,p}, while the
> former are only bound to {down,up}. According to the OP, it's a bug
> that typing 'n' or 'p' in vertical format navigates horizontally instead
> of vertically; I agree, and that's what my patches have dealt with. As
> previously noted, my first patch modified only `next-completion' (I
> wasn't even aware of `next-line-completion' when I did that) and
> required no rebinding or new commands, so it was conceptually simple,
> though the code itself was convoluted and ugly (and did not handle some
> cases I only become aware of later). But Juri convinced me that it was
> simpler and cleaner to get the desired effect by using a vertical (line)
> command for movement within a column followed by a horizontal command to
> go the the next or previous column, and that's what my subsequent
> patches have done. However, the only way I could think of to use 'n'
> and 'p' appropriately for both formats was to introduce a new command
> that delegates to the appropriate horizontal or vertical command
> according to the value of `completions-format'. If you or anyone knows
> how to do that without such a delegating or dispatching command, please
> spell it out for me, because I don't see it from what you've written so
> far.
Sorry, I don't see a problem you allude to. But I evidently fail to
make my point across, so I will bow out of this discussion and let you
do what you think is best.
(I'll still be sad if the result of the changes as installed will be
that 'n' and 'p' will become bound to different commands in the
horizontal case.)
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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From: Juri Linkov <juri@HIDDEN>
To: Stephen Berman <stephen.berman@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
In-Reply-To: <87v7nu4cx2.fsf@HIDDEN>
Organization: LINKOV.NET
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>> All other keybindings "n", "p", TAB, S-TAB will be directional
>> depending on 'completions-format'.
>
> I've done this in the attached patch; however, this changes the public
> API backward incompatibly, so getting the Emacs maintainers to accept it
> may be a very hard sell. There's only one use of `next-completion' in
> the Emacs tree (besides `previous-completion', which is part of the same
> API change): `minibuffer-next-completion', so we can (and must) adjust
> that accordingly, which the attached patch does (the patch contains
> other changes to minibuffer.el needed to make navigation of the
> *Completions* buffer in the vertical format work as intended from the
> minibuffer, as described in the NEWS announcement in the patch; those
> changes are independent of the question of repurposing
> `{next,previous}-completion'). But any external code that uses the
> original implementation of these commands would be broken by the change.
> The patch contains a second NEWS entry under incompatible Lisp changes
> calling this out, and the needed adjustment is simple, as the
> minibuffer.el patch illustrates, so maybe such breakage is acceptable.
> If not, then we may have no choice but to find an acceptable name for
> the command that calls the navigation commands based on the value of
> `completions-format'. (Some changes to the "Completion" node of the
> Emacs manual may also be needed, but I've refrained from doing that
> until the issue of the command names is settled.)
Thanks, everything in your patch is correct. The breaking change
comes not from adding `next-column-completion', but from fixing
the problem reported in this bug report where the direction of
"n", "p", TAB, S-TAB will depend on 'completions-format'.
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
In-Reply-To: <868qkpjwkb.fsf@HIDDEN>
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On Tue, 15 Jul 2025 18:36:04 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>> From: Stephen Berman <stephen.berman@HIDDEN>
>> Cc: juri@HIDDEN, 78959 <at> debbugs.gnu.org, dmoncayo@HIDDEN
>> Date: Tue, 15 Jul 2025 16:13:28 +0200
[...]=20
>> The issue of this bug report is that 'n' and 'p' (and 'M-<down>' and
>> 'M-<up>') should move point through all completions in the sorted order
>> regardless of the completions format, i.e. horizontally (column-wise)
>> for horizontal format (which the current code does do) and vertically
>> (line-wise) for vertical format, which the current code does not do. M=
y
>> first patch changed `{next,previous}-completion' to DTRT in vertical
>> format but at the cost of convoluted code; Juri pointed out that a much
>> simpler implementation using the existing navigation commands was
>> possible, but to use the same bindings for navigation in both formats,
>> it was easiest to introduce new commands that delegated to the existing
>> ones based on the completions format, and that's what my last two
>> patches do (though some changes to the line-wise commands were still
>> necessary).
>
> Why not the other way around: have the existing commands delegate to
> new functions when the format is vertical? AFAIU, that would avoid
> the need to rebind the keys to new commands and having the new
> commands delegate to old. As a nice bonus, it also frees us from the
> need to consider the old names, and we are free to introduce new
> commands with -vertically in their names.
>
> Or what am I missing?
There is no need for new commands for navigating vertical format:
`{next,previous}-line-completion' already do that (but in the current
(unpatched) code they navigate only within a single column, not through
all completions, like `{next,previous}-completion' do for horizontal
format). In the current (unpatched) code, the latter commands are bound
in `completion-list-mode-map' to both {right,left} and {n,p}, while the
former are only bound to {down,up}. According to the OP, it's a bug
that typing 'n' or 'p' in vertical format navigates horizontally instead
of vertically; I agree, and that's what my patches have dealt with. As
previously noted, my first patch modified only `next-completion' (I
wasn't even aware of `next-line-completion' when I did that) and
required no rebinding or new commands, so it was conceptually simple,
though the code itself was convoluted and ugly (and did not handle some
cases I only become aware of later). But Juri convinced me that it was
simpler and cleaner to get the desired effect by using a vertical (line)
command for movement within a column followed by a horizontal command to
go the the next or previous column, and that's what my subsequent
patches have done. However, the only way I could think of to use 'n'
and 'p' appropriately for both formats was to introduce a new command
that delegates to the appropriate horizontal or vertical command
according to the value of `completions-format'. If you or anyone knows
how to do that without such a delegating or dispatching command, please
spell it out for me, because I don't see it from what you've written so
far.
Steve Berman
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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Date: Tue, 15 Jul 2025 18:36:04 +0300
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From: Eli Zaretskii <eliz@HIDDEN>
To: Stephen Berman <stephen.berman@HIDDEN>
In-Reply-To: <874ivdtud3.fsf@HIDDEN> (message from Stephen Berman on Tue, 15
Jul 2025 16:13:28 +0200)
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
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> From: Stephen Berman <stephen.berman@HIDDEN>
> Cc: juri@HIDDEN, 78959 <at> debbugs.gnu.org, dmoncayo@HIDDEN
> Date: Tue, 15 Jul 2025 16:13:28 +0200
>
> On Tue, 15 Jul 2025 16:33:32 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>
> >> From: Stephen Berman <stephen.berman@HIDDEN>
> >> Cc: juri@HIDDEN, 78959 <at> debbugs.gnu.org, dmoncayo@HIDDEN
> >> Date: Tue, 15 Jul 2025 15:03:07 +0200
> >>
> >> On Tue, 15 Jul 2025 15:38:51 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
> >>
> >> >> From: Stephen Berman <stephen.berman@HIDDEN>
> >> >> Cc: juri@HIDDEN, 78959 <at> debbugs.gnu.org, dmoncayo@HIDDEN
> >> >> Date: Tue, 15 Jul 2025 14:30:18 +0200
> >> >>
> >> >> On Tue, 15 Jul 2025 14:52:07 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
> >> >>
> >> >> > Indeed, let's try to find a more backward-compatible change. For
> >> >> > example, how about rebinding 'n' and 'p' to other (new) commands in
> >> >> > the vertical mode?
> >> >>
> >> >> My previous patch did bind 'n' and 'p' to new commands; however, the
> >> >> problem is finding good names for these commands, see
> >> >> https://lists.gnu.org/archive/html/bug-gnu-emacs/2025-07/msg00542.html
> >> >
> >> > If the names are the main problem, I don't think we should look for a
> >> > different solutions. I'm quite sure we will be able to find
> >> > reasonably useful names.
> >> >
> >> > For example, how about next-completion-vertically and
> >> > previous-completion-vertically?
> >>
> >> The new functions delegate to existing commands:
> >> `{next,previous}-line-completion' when the format is vertical and
> >> `{next,previous}-completion' when the format is horizontal (or
> >> one-column), so the names should ideally abstract over both these
> >> possibilities. In the post mentioned above I offered a few
> >> alternatives, e.g. `{next,previous}-completion-direction', but hoped for
> >> something better.
> >
> > It sounds like we are talking about 2 different solutions, because I
> > don't see how delegation enters this picture. The current bindings of
> > 'n' and 'p' do their job when completions are arranged horizontally,
> > so why do you need to delegate in that case?
>
> The issue of this bug report is that 'n' and 'p' (and 'M-<down>' and
> 'M-<up>') should move point through all completions in the sorted order
> regardless of the completions format, i.e. horizontally (column-wise)
> for horizontal format (which the current code does do) and vertically
> (line-wise) for vertical format, which the current code does not do. My
> first patch changed `{next,previous}-completion' to DTRT in vertical
> format but at the cost of convoluted code; Juri pointed out that a much
> simpler implementation using the existing navigation commands was
> possible, but to use the same bindings for navigation in both formats,
> it was easiest to introduce new commands that delegated to the existing
> ones based on the completions format, and that's what my last two
> patches do (though some changes to the line-wise commands were still
> necessary).
Why not the other way around: have the existing commands delegate to
new functions when the format is vertical? AFAIU, that would avoid
the need to rebind the keys to new commands and having the new
commands delegate to old. As a nice bonus, it also frees us from the
need to consider the old names, and we are free to introduce new
commands with -vertically in their names.
Or what am I missing?
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
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On Tue, 15 Jul 2025 16:33:32 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>> From: Stephen Berman <stephen.berman@HIDDEN>
>> Cc: juri@HIDDEN, 78959 <at> debbugs.gnu.org, dmoncayo@HIDDEN
>> Date: Tue, 15 Jul 2025 15:03:07 +0200
>>=20
>> On Tue, 15 Jul 2025 15:38:51 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>>=20
>> >> From: Stephen Berman <stephen.berman@HIDDEN>
>> >> Cc: juri@HIDDEN, 78959 <at> debbugs.gnu.org, dmoncayo@HIDDEN
>> >> Date: Tue, 15 Jul 2025 14:30:18 +0200
>> >>=20
>> >> On Tue, 15 Jul 2025 14:52:07 +0300 Eli Zaretskii <eliz@HIDDEN> wrot=
e:
>> >>=20
>> >> > Indeed, let's try to find a more backward-compatible change. For
>> >> > example, how about rebinding 'n' and 'p' to other (new) commands i=
n
>> >> > the vertical mode?
>> >>=20
>> >> My previous patch did bind 'n' and 'p' to new commands; however, the
>> >> problem is finding good names for these commands, see
>> >> https://lists.gnu.org/archive/html/bug-gnu-emacs/2025-07/msg00542.ht=
ml
>> >
>> > If the names are the main problem, I don't think we should look for a
>> > different solutions. I'm quite sure we will be able to find
>> > reasonably useful names.
>> >
>> > For example, how about next-completion-vertically and
>> > previous-completion-vertically?
>>=20
>> The new functions delegate to existing commands:
>> `{next,previous}-line-completion' when the format is vertical and
>> `{next,previous}-completion' when the format is horizontal (or
>> one-column), so the names should ideally abstract over both these
>> possibilities. In the post mentioned above I offered a few
>> alternatives, e.g. `{next,previous}-completion-direction', but hoped fo=
r
>> something better.
>
> It sounds like we are talking about 2 different solutions, because I
> don't see how delegation enters this picture. The current bindings of
> 'n' and 'p' do their job when completions are arranged horizontally,
> so why do you need to delegate in that case?
The issue of this bug report is that 'n' and 'p' (and 'M-<down>' and
'M-<up>') should move point through all completions in the sorted order
regardless of the completions format, i.e. horizontally (column-wise)
for horizontal format (which the current code does do) and vertically
(line-wise) for vertical format, which the current code does not do. My
first patch changed `{next,previous}-completion' to DTRT in vertical
format but at the cost of convoluted code; Juri pointed out that a much
simpler implementation using the existing navigation commands was
possible, but to use the same bindings for navigation in both formats,
it was easiest to introduce new commands that delegated to the existing
ones based on the completions format, and that's what my last two
patches do (though some changes to the line-wise commands were still
necessary).
Steve Berman
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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Date: Tue, 15 Jul 2025 16:33:32 +0300
Message-Id: <86ecuhk28j.fsf@HIDDEN>
From: Eli Zaretskii <eliz@HIDDEN>
To: Stephen Berman <stephen.berman@HIDDEN>
In-Reply-To: <87cya1txmc.fsf@HIDDEN> (message from Stephen Berman on Tue, 15
Jul 2025 15:03:07 +0200)
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
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> From: Stephen Berman <stephen.berman@HIDDEN>
> Cc: juri@HIDDEN, 78959 <at> debbugs.gnu.org, dmoncayo@HIDDEN
> Date: Tue, 15 Jul 2025 15:03:07 +0200
>
> On Tue, 15 Jul 2025 15:38:51 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>
> >> From: Stephen Berman <stephen.berman@HIDDEN>
> >> Cc: juri@HIDDEN, 78959 <at> debbugs.gnu.org, dmoncayo@HIDDEN
> >> Date: Tue, 15 Jul 2025 14:30:18 +0200
> >>
> >> On Tue, 15 Jul 2025 14:52:07 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
> >>
> >> > Indeed, let's try to find a more backward-compatible change. For
> >> > example, how about rebinding 'n' and 'p' to other (new) commands in
> >> > the vertical mode?
> >>
> >> My previous patch did bind 'n' and 'p' to new commands; however, the
> >> problem is finding good names for these commands, see
> >> https://lists.gnu.org/archive/html/bug-gnu-emacs/2025-07/msg00542.html
> >
> > If the names are the main problem, I don't think we should look for a
> > different solutions. I'm quite sure we will be able to find
> > reasonably useful names.
> >
> > For example, how about next-completion-vertically and
> > previous-completion-vertically?
>
> The new functions delegate to existing commands:
> `{next,previous}-line-completion' when the format is vertical and
> `{next,previous}-completion' when the format is horizontal (or
> one-column), so the names should ideally abstract over both these
> possibilities. In the post mentioned above I offered a few
> alternatives, e.g. `{next,previous}-completion-direction', but hoped for
> something better.
It sounds like we are talking about 2 different solutions, because I
don't see how delegation enters this picture. The current bindings of
'n' and 'p' do their job when completions are arranged horizontally,
so why do you need to delegate in that case?
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
Full text available.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
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On Tue, 15 Jul 2025 15:38:51 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>> From: Stephen Berman <stephen.berman@HIDDEN>
>> Cc: juri@HIDDEN, 78959 <at> debbugs.gnu.org, dmoncayo@HIDDEN
>> Date: Tue, 15 Jul 2025 14:30:18 +0200
>>=20
>> On Tue, 15 Jul 2025 14:52:07 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>>=20
>> > Indeed, let's try to find a more backward-compatible change. For
>> > example, how about rebinding 'n' and 'p' to other (new) commands in
>> > the vertical mode?
>>=20
>> My previous patch did bind 'n' and 'p' to new commands; however, the
>> problem is finding good names for these commands, see
>> https://lists.gnu.org/archive/html/bug-gnu-emacs/2025-07/msg00542.html
>
> If the names are the main problem, I don't think we should look for a
> different solutions. I'm quite sure we will be able to find
> reasonably useful names.
>
> For example, how about next-completion-vertically and
> previous-completion-vertically?
The new functions delegate to existing commands:
`{next,previous}-line-completion' when the format is vertical and
`{next,previous}-completion' when the format is horizontal (or
one-column), so the names should ideally abstract over both these
possibilities. In the post mentioned above I offered a few
alternatives, e.g. `{next,previous}-completion-direction', but hoped for
something better.
Steve Berman
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
Full text available.Received: (at 78959) by debbugs.gnu.org; 15 Jul 2025 12:39:06 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Jul 15 08:39:06 2025 Received: from localhost ([127.0.0.1]:40916 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1ubew6-0003jR-7O for submit <at> debbugs.gnu.org; Tue, 15 Jul 2025 08:39:06 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36620) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1ubew1-0003ik-Hk for 78959 <at> debbugs.gnu.org; Tue, 15 Jul 2025 08:39:02 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1ubevu-0001sf-S6; Tue, 15 Jul 2025 08:38:54 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=KuAxNEBH0Xsh1lcSF544QHEE32p6gWYGN3UZeis7WGo=; b=OZ+LznYo4wG3 cWaKskUVGtUURKuFLNLvOymm+3G854roXqmazxZZimtXFL5j0aTciBwqQCWdLz1JP2VyTjavDGiHg V6+YFwfK1ykdUgbbXXA/oQQB9iMrx2u2mEChnjBLPPjkxjVdiF0W3udPjfI4ZZzTjnpUGyg2Z+yDt 5qjXOjJREgDwYYesflew3WvUonW6nJEHKpU7FO0LityU5lTaVvTMmmTADiokqNSJWqec+HqNj9mbr SaLoUQiQH4sxKjoz77pRc731+OHhemEjvNGcLDxho8gTZI97HG3T+HHe+gl48NllfxWEFutd1IbQM kQhmivWaQEVjGHLibp22og==; Date: Tue, 15 Jul 2025 15:38:51 +0300 Message-Id: <86ikjtk4ro.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Stephen Berman <stephen.berman@HIDDEN> In-Reply-To: <87h5zdtz51.fsf@HIDDEN> (message from Stephen Berman on Tue, 15 Jul 2025 14:30:18 +0200) Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n' and 'p' References: <CAH8Pv0hAOUwCxyHP_gJdWuuP16U+LYWWpAhopwbPVSDHukAURg@HIDDEN> <87ecuuwj7j.fsf@HIDDEN> <87o6tw4hbo.fsf@HIDDEN> <874ivo77vt.fsf@HIDDEN> <87wm8k2cjm.fsf@HIDDEN> <87ldozyt8r.fsf@HIDDEN> <875xg1sxxc.fsf@HIDDEN> <87a55cc9q9.fsf@HIDDEN> <87tt3jg9v2.fsf@HIDDEN> <8734b3otqn.fsf@HIDDEN> <87ikjyeqqi.fsf@HIDDEN> <87tt3ioe3a.fsf@HIDDEN> <875xfwbo14.fsf@HIDDEN> <87v7nu4cx2.fsf@HIDDEN> <86seixk6xk.fsf@HIDDEN> <87h5zdtz51.fsf@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 78959 Cc: 78959 <at> debbugs.gnu.org, dmoncayo@HIDDEN, juri@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Stephen Berman <stephen.berman@HIDDEN> > Cc: juri@HIDDEN, 78959 <at> debbugs.gnu.org, dmoncayo@HIDDEN > Date: Tue, 15 Jul 2025 14:30:18 +0200 > > On Tue, 15 Jul 2025 14:52:07 +0300 Eli Zaretskii <eliz@HIDDEN> wrote: > > > Indeed, let's try to find a more backward-compatible change. For > > example, how about rebinding 'n' and 'p' to other (new) commands in > > the vertical mode? > > My previous patch did bind 'n' and 'p' to new commands; however, the > problem is finding good names for these commands, see > https://lists.gnu.org/archive/html/bug-gnu-emacs/2025-07/msg00542.html If the names are the main problem, I don't think we should look for a different solutions. I'm quite sure we will be able to find reasonably useful names. For example, how about next-completion-vertically and previous-completion-vertically?
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
In-Reply-To: <86seixk6xk.fsf@HIDDEN>
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On Tue, 15 Jul 2025 14:52:07 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>> Cc: 78959 <at> debbugs.gnu.org, Dani Moncayo <dmoncayo@HIDDEN>
>> Date: Tue, 15 Jul 2025 00:37:13 +0200
>> From: Stephen Berman via "Bug reports for GNU Emacs,
>> the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN>
>>=20
>> On Sun, 13 Jul 2025 09:50:47 +0300 Juri Linkov <juri@HIDDEN> wrote:
>>=20
>> >>> Given that 'next-completion' moves column-wise, and
>> >>> 'next-line-completion' moves line-wise, what word
>> >>> would describe the behavior of the new commands
>> >>> that choose the motion direction based on whether
>> >>> the completion list is formatted horizontally or vertically?
>> >>> Maybe 'next-completion-adaptive'? Or something that
>> >>> makes a reference to "logical order"?
>> >>
>> >> It's too bad `next-completion' wasn't called `next-column-completion=
'
>> >> (and likewise for `previous-completion'), but I guess we can't chang=
e
>> >> that now. "-adaptive" and "-logical" seem too vague or unspecific.
>> >
>> > `next-column-completion' would be perfect. And it looks safe
>> > since it requires changing only 2 keybindings [left] and [right]:
>> >
>> > (define-key map [up] 'previous-line-completion)
>> > (define-key map [down] 'next-line-completion)
>> > (define-key map [left] 'previous-column-completion)
>> > (define-key map [right] 'next-column-completion)
>> > (define-key map [?\t] 'next-completion)
>> > (define-key map [backtab] 'previous-completion)
>> > (define-key map "n" 'next-completion)
>> > (define-key map "p" 'previous-completion)
>> >
>> > All other keybindings "n", "p", TAB, S-TAB will be directional
>> > depending on 'completions-format'.
>>=20
>> I've done this in the attached patch; however, this changes the public
>> API backward incompatibly, so getting the Emacs maintainers to accept i=
t
>> may be a very hard sell. There's only one use of `next-completion' in
>> the Emacs tree (besides `previous-completion', which is part of the sam=
e
>> API change): `minibuffer-next-completion', so we can (and must) adjust
>> that accordingly, which the attached patch does (the patch contains
>> other changes to minibuffer.el needed to make navigation of the
>> *Completions* buffer in the vertical format work as intended from the
>> minibuffer, as described in the NEWS announcement in the patch; those
>> changes are independent of the question of repurposing
>> `{next,previous}-completion'). But any external code that uses the
>> original implementation of these commands would be broken by the change=
.
>
> Indeed, let's try to find a more backward-compatible change. For
> example, how about rebinding 'n' and 'p' to other (new) commands in
> the vertical mode?
My previous patch did bind 'n' and 'p' to new commands; however, the
problem is finding good names for these commands, see
https://lists.gnu.org/archive/html/bug-gnu-emacs/2025-07/msg00542.html
Ideally, the best names would be `{next,previous}-completion', but
unfortunately those are used by commands with a narrower scope (they do
not work as desired/expected in the *Completions* vertical format, which
is what prompted this bug report). My first patch in this thread made
those commands DTRT in vertical format, but the code was convoluted (and
I think incomplete), and Juri pointed out obvious simplifications, which
I adopted in my previous patch, and this gave rise the the naming issue.
I welcome any suggestions for good names for these commands.
Steve Berman
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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Date: Tue, 15 Jul 2025 14:52:07 +0300
Message-Id: <86seixk6xk.fsf@HIDDEN>
From: Eli Zaretskii <eliz@HIDDEN>
To: Stephen Berman <stephen.berman@HIDDEN>
In-Reply-To: <87v7nu4cx2.fsf@HIDDEN> (bug-gnu-emacs@HIDDEN)
Subject: Re: bug#78959: 31.0.50;
*Completions* buffer navigation with 'n' and 'p'
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> Cc: 78959 <at> debbugs.gnu.org, Dani Moncayo <dmoncayo@HIDDEN>
> Date: Tue, 15 Jul 2025 00:37:13 +0200
> From: Stephen Berman via "Bug reports for GNU Emacs,
> the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN>
>
> On Sun, 13 Jul 2025 09:50:47 +0300 Juri Linkov <juri@HIDDEN> wrote:
>
> >>> Given that 'next-completion' moves column-wise, and
> >>> 'next-line-completion' moves line-wise, what word
> >>> would describe the behavior of the new commands
> >>> that choose the motion direction based on whether
> >>> the completion list is formatted horizontally or vertically?
> >>> Maybe 'next-completion-adaptive'? Or something that
> >>> makes a reference to "logical order"?
> >>
> >> It's too bad `next-completion' wasn't called `next-column-completion'
> >> (and likewise for `previous-completion'), but I guess we can't change
> >> that now. "-adaptive" and "-logical" seem too vague or unspecific.
> >
> > `next-column-completion' would be perfect. And it looks safe
> > since it requires changing only 2 keybindings [left] and [right]:
> >
> > (define-key map [up] 'previous-line-completion)
> > (define-key map [down] 'next-line-completion)
> > (define-key map [left] 'previous-column-completion)
> > (define-key map [right] 'next-column-completion)
> > (define-key map [?\t] 'next-completion)
> > (define-key map [backtab] 'previous-completion)
> > (define-key map "n" 'next-completion)
> > (define-key map "p" 'previous-completion)
> >
> > All other keybindings "n", "p", TAB, S-TAB will be directional
> > depending on 'completions-format'.
>
> I've done this in the attached patch; however, this changes the public
> API backward incompatibly, so getting the Emacs maintainers to accept it
> may be a very hard sell. There's only one use of `next-completion' in
> the Emacs tree (besides `previous-completion', which is part of the same
> API change): `minibuffer-next-completion', so we can (and must) adjust
> that accordingly, which the attached patch does (the patch contains
> other changes to minibuffer.el needed to make navigation of the
> *Completions* buffer in the vertical format work as intended from the
> minibuffer, as described in the NEWS announcement in the patch; those
> changes are independent of the question of repurposing
> `{next,previous}-completion'). But any external code that uses the
> original implementation of these commands would be broken by the change.
Indeed, let's try to find a more backward-compatible change. For
example, how about rebinding 'n' and 'p' to other (new) commands in
the vertical mode?
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
Full text available.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Juri Linkov <juri@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
In-Reply-To: <875xfwbo14.fsf@HIDDEN>
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--=-=-=
Content-Type: text/plain
On Sun, 13 Jul 2025 09:50:47 +0300 Juri Linkov <juri@HIDDEN> wrote:
>>> Given that 'next-completion' moves column-wise, and
>>> 'next-line-completion' moves line-wise, what word
>>> would describe the behavior of the new commands
>>> that choose the motion direction based on whether
>>> the completion list is formatted horizontally or vertically?
>>> Maybe 'next-completion-adaptive'? Or something that
>>> makes a reference to "logical order"?
>>
>> It's too bad `next-completion' wasn't called `next-column-completion'
>> (and likewise for `previous-completion'), but I guess we can't change
>> that now. "-adaptive" and "-logical" seem too vague or unspecific.
>
> `next-column-completion' would be perfect. And it looks safe
> since it requires changing only 2 keybindings [left] and [right]:
>
> (define-key map [up] 'previous-line-completion)
> (define-key map [down] 'next-line-completion)
> (define-key map [left] 'previous-column-completion)
> (define-key map [right] 'next-column-completion)
> (define-key map [?\t] 'next-completion)
> (define-key map [backtab] 'previous-completion)
> (define-key map "n" 'next-completion)
> (define-key map "p" 'previous-completion)
>
> All other keybindings "n", "p", TAB, S-TAB will be directional
> depending on 'completions-format'.
I've done this in the attached patch; however, this changes the public
API backward incompatibly, so getting the Emacs maintainers to accept it
may be a very hard sell. There's only one use of `next-completion' in
the Emacs tree (besides `previous-completion', which is part of the same
API change): `minibuffer-next-completion', so we can (and must) adjust
that accordingly, which the attached patch does (the patch contains
other changes to minibuffer.el needed to make navigation of the
*Completions* buffer in the vertical format work as intended from the
minibuffer, as described in the NEWS announcement in the patch; those
changes are independent of the question of repurposing
`{next,previous}-completion'). But any external code that uses the
original implementation of these commands would be broken by the change.
The patch contains a second NEWS entry under incompatible Lisp changes
calling this out, and the needed adjustment is simple, as the
minibuffer.el patch illustrates, so maybe such breakage is acceptable.
If not, then we may have no choice but to find an acceptable name for
the command that calls the navigation commands based on the value of
`completions-format'. (Some changes to the "Completion" node of the
Emacs manual may also be needed, but I've refrained from doing that
until the issue of the command names is settled.)
Steve Berman
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment
Content-Description: next/previous completions patch
Content-Transfer-Encoding: quoted-printable
diff --git a/etc/NEWS b/etc/NEWS
index 0653ce74287..afc8b025a19 100644
=2D-- a/etc/NEWS
+++ b/etc/NEWS
@@ -192,6 +192,23 @@ different values for completion-affecting variables l=
ike
applies for the styles configuration in 'completion-category-overrides'
and 'completion-category-defaults'.
=20
+---
+*** Navigating "*Completions*" now takes completions format into account.
+When 'completions-format' is set to 'vertical', typing 'n' or 'p' in the
+"*Completions*" buffer now moves point to the item in the next or
+previous line in the current column, and wraps to the next or previous
+column when typed on the last or first item, respectively, of the
+current column. Likewise when typing 'M-<down>' or 'M-<up>' (or, when
+'minibuffer-visible-completions' is non-nil, simply '<down>' or '<up>')
+in the minibuffer. Previously, typing 'n' or 'p' in "*Completions*", or
+'M-<down>' or 'M-<up>' in the minibuffer, ignored the vertical format,
+i.e., moved point only to the item in the same line of next or previous
+column, respectively, in accordance with the default horizontal format.
+(With 'minibuffer-visible-completions' is non-nil, typing '<down>' or
+'<up>' previously moved point only within the current column, i.e., did
+not wrap to the next or previous column; now it does, but you can, as
+before, still use '<left>' and '<right>' to navigate between columns.)
+
---
*** Selected completion candidate is preserved across "*Completions*" upd=
ates.
When point is on a completion candidate in the "*Completions*" buffer
@@ -2469,6 +2486,17 @@ instead, which gives the time offset as +/-hh or +/=
-hh:mm. A designator
formats, like "2025-06-04 13:21:00 EDT", without the ISO 8601 "T"
separator, are also supported.
=20
+** 'next-completion' and 'previous-completion' now use 'completions-forma=
t'.
+Previously, these commands only took horizontal format into account;
+now, they delegate to '{next,previous}-line-completion' or to
+'{next,previous}-column-completion' depending on the value of
+'completions-format'. The latter two commands are merely new names for
+the previous implementations of '{next,previous}-completion', which
+better reflect that they only take the (default) horizontal completions
+format into account. Because of this repurposing of
+'{next,previous}-completion', any external code using these functions
+based on the previous implementations must be ajusted accordingly.
+
=0C
* Lisp Changes in Emacs 31.1
=20
diff --git a/lisp/minibuffer.el b/lisp/minibuffer.el
index 122459be062..3ff749dbaf1 100644
=2D-- a/lisp/minibuffer.el
+++ b/lisp/minibuffer.el
@@ -3306,8 +3306,8 @@ minibuffer-visible-completions--bind
=20
(defvar-keymap minibuffer-visible-completions-map
:doc "Local keymap for minibuffer input with visible completions."
- "<left>" (minibuffer-visible-completions--bind #'minibuffer-previous-c=
ompletion)
- "<right>" (minibuffer-visible-completions--bind #'minibuffer-next-compl=
etion)
+ "<left>" (minibuffer-visible-completions--bind #'minibuffer-previous-c=
olumn-completion)
+ "<right>" (minibuffer-visible-completions--bind #'minibuffer-next-colum=
n-completion)
"<up>" (minibuffer-visible-completions--bind #'minibuffer-previous-l=
ine-completion)
"<down>" (minibuffer-visible-completions--bind #'minibuffer-next-line-=
completion)
"RET" (minibuffer-visible-completions--bind #'minibuffer-choose-com=
pletion-or-exit)
@@ -5084,15 +5084,15 @@ minibuffer-next-completion
"Move to the next item in its completions window from the minibuffer.
When the optional argument VERTICAL is non-nil, move vertically
to the next item on the next line using `next-line-completion'.
-Otherwise, move to the next item horizontally using `next-completion'.
+Otherwise, move to the next item horizontally using `next-column-completi=
on'.
When `minibuffer-completion-auto-choose' is non-nil, then also
insert the selected completion candidate to the minibuffer."
(interactive "p")
(let ((auto-choose minibuffer-completion-auto-choose))
(with-minibuffer-completions-window
- (if vertical
+ (if (or vertical (eq completions-format 'vertical))
(next-line-completion (or n 1))
- (next-completion (or n 1)))
+ (next-column-completion (or n 1)))
(when auto-choose
(let ((completion-auto-deselect nil))
(choose-completion nil t t))))))
@@ -5122,6 +5122,26 @@ minibuffer-previous-line-completion
(interactive "p")
(minibuffer-next-completion (- (or n 1)) t))
=20
+(defun minibuffer-next-column-completion (&optional n)
+ "Move to the next completion column from the minibuffer.
+This means to move to the completion candidate in the next column
+in the *Completions* buffer while point stays in the minibuffer.
+When `minibuffer-completion-auto-choose' is non-nil, then also
+insert the selected completion candidate to the minibuffer."
+ (interactive "p")
+ (with-minibuffer-completions-window
+ (next-column-completion (or n 1))))
+
+(defun minibuffer-previous-column-completion (&optional n)
+ "Move to the previous completion column from the minibuffer.
+This means to move to the completion candidate on the previous column
+in the *Completions* buffer while point stays in the minibuffer.
+When `minibuffer-completion-auto-choose' is non-nil, then also
+insert the selected completion candidate to the minibuffer."
+ (interactive "p")
+ (with-minibuffer-completions-window
+ (next-column-completion (- (or n 1)))))
+
(defun minibuffer-choose-completion (&optional no-exit no-quit)
"Run `choose-completion' from the minibuffer in its completions window.
With prefix argument NO-EXIT, insert the completion candidate at point to
diff --git a/lisp/simple.el b/lisp/simple.el
index f2a66bbfba2..0a94d8051f2 100644
=2D-- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -10064,8 +10064,8 @@ completion-list-mode-map
(define-key map [remap keyboard-quit] #'delete-completion-window)
(define-key map [up] 'previous-line-completion)
(define-key map [down] 'next-line-completion)
- (define-key map [left] 'previous-completion)
- (define-key map [right] 'next-completion)
+ (define-key map [left] 'previous-column-completion)
+ (define-key map [right] 'next-column-completion)
(define-key map [?\t] 'next-completion)
(define-key map [backtab] 'previous-completion)
(define-key map [M-up] 'minibuffer-previous-completion)
@@ -10155,21 +10155,42 @@ first-completion
(defun last-completion ()
"Move to the last item in the completions buffer."
(interactive)
+ ;; Move to the last item in horizontal or one-column format.
(goto-char (previous-single-property-change
(point-max) 'mouse-face nil (point-min)))
- ;; Move to the start of last one.
+ ;; Move to the start of the item.
(unless (get-text-property (point) 'mouse-face)
(when-let* ((pos (previous-single-property-change (point) 'mouse-face=
)))
- (goto-char pos))))
-
-(defun previous-completion (n)
- "Move to the previous item in the completions buffer.
-With prefix argument N, move back N items (negative N means move
+ (goto-char pos)))
+ ;; In vertical format the last item is in the last column even if its
+ ;; line number is less than that of the last item in earlier columns.
+ (when (eq completions-format 'vertical)
+ (let* ((pt (point))
+ (col (current-column))
+ (last (progn
+ (first-completion)
+ (goto-char (pos-eol))
+ (goto-char (previous-single-property-change
+ (point) 'mouse-face))
+ (current-column))))
+ (when (> last col)
+ (while (=3D (current-column) last)
+ (forward-line)
+ (unless (eobp)
+ (goto-char (pos-eol))
+ (move-to-column last)
+ (when (=3D (current-column) last)
+ (setq pt (point))))))
+ (goto-char pt))))
+
+(defun previous-column-completion (n)
+ "Move to the item in the previous column of the completions buffer.
+With prefix argument N, move back N columns (negative N means move
forward).
=20
Also see the `completion-auto-wrap' variable."
(interactive "p")
- (next-completion (- n)))
+ (next-column-completion (- n)))
=20
(defun completion--move-to-candidate-start ()
"If in a completion candidate, move point to its start."
@@ -10185,9 +10206,9 @@ completion--move-to-candidate-end
(get-text-property (1+ (point)) 'mouse-face))
(goto-char (or (next-single-property-change (point) 'mouse-face) (poi=
nt-max)))))
=20
-(defun next-completion (n)
- "Move to the next item in the completions buffer.
-With prefix argument N, move N items (negative N means move
+(defun next-column-completion (n)
+ "Move to the item in the next column of the completions buffer.
+With prefix argument N, move N columns (negative N means move
backward).
=20
Also see the `completion-auto-wrap' variable."
@@ -10251,7 +10272,11 @@ next-completion
=20
(defun previous-line-completion (&optional n)
"Move to completion candidate on the previous line in the completions b=
uffer.
-With prefix argument N, move back N lines (negative N means move forward)=
.
+With prefix argument N, move back N lines (negative N means move
+forward). In vertical format (see user option `completions-format')
+this command moves line-wise through all columns in the completions
+buffer, in horizontal format movement is confined to the current column
+of completions.
=20
Also see the `completion-auto-wrap' variable."
(interactive "p")
@@ -10259,11 +10284,15 @@ previous-line-completion
=20
(defun next-line-completion (&optional n)
"Move to completion candidate on the next line in the completions buffe=
r.
-With prefix argument N, move N lines forward (negative N means move backw=
ard).
+With prefix argument N, move N lines forward (negative N means move
+backward). In vertical format (see user option `completions-format')
+this command moves line-wise through all columns in the completions
+buffer, in horizontal format movement is confined to the current column
+of completions.
=20
Also see the `completion-auto-wrap' variable."
(interactive "p")
- (let (line column pos found)
+ (let (line column pos found last first)
(when (and (bobp)
(> n 0)
(get-text-property (point) 'mouse-face)
@@ -10288,54 +10317,98 @@ next-line-completion
((< n 0) (first-completion)))))
=20
(while (> n 0)
- (setq found nil pos nil column (current-column) line (line-number-a=
t-pos))
- (completion--move-to-candidate-end)
- (while (and (not found)
- (eq (forward-line 1) 0)
- (not (eobp))
- (move-to-column column))
- (when (get-text-property (point) 'mouse-face)
- (setq found t)))
- (when (not found)
- (if (not completion-auto-wrap)
- (last-completion)
- (save-excursion
- (goto-char (point-min))
- (when (and (eq (move-to-column column) column)
- (get-text-property (point) 'mouse-face))
- (setq pos (point)))
- (while (and (not pos) (> line (line-number-at-pos)))
- (forward-line 1)
+ (setq found nil pos nil column (current-column) line (line-number-a=
t-pos)
+ last (=3D (point) (save-excursion (last-completion) (point)))=
)
+ (if (and (eq completions-format 'vertical)
+ completion-auto-wrap last)
+ (first-completion) ; Wrap from last to first item.
+ (completion--move-to-candidate-end)
+ (while (and (not found)
+ (eq (forward-line 1) 0)
+ (not (eobp))
+ (move-to-column column))
+ (when (get-text-property (point) 'mouse-face)
+ (setq found t)))
+ (when (not found)
+ (if (and (not completion-auto-wrap)
+ (when (eq completions-format 'vertical) last))
+ (last-completion)
+ (save-excursion
+ (goto-char (point-min))
(when (and (eq (move-to-column column) column)
(get-text-property (point) 'mouse-face))
- (setq pos (point)))))
- (if pos (goto-char pos))))
+ (setq pos (point)))
+ (while (and (not pos) (> line (line-number-at-pos)))
+ (forward-line 1)
+ (when (and (eq (move-to-column column) column)
+ (get-text-property (point) 'mouse-face))
+ (setq pos (point)))))
+ (if pos (goto-char pos))
+ (when (eq completions-format 'vertical)
+ (next-column-completion 1))))) ; Move to next column.
(setq n (1- n)))
=20
(while (< n 0)
- (setq found nil pos nil column (current-column) line (line-number-a=
t-pos))
- (completion--move-to-candidate-start)
- (while (and (not found)
- (eq (forward-line -1) 0)
- (move-to-column column))
- (when (get-text-property (point) 'mouse-face)
- (setq found t)))
- (when (not found)
- (if (not completion-auto-wrap)
- (first-completion)
- (save-excursion
- (goto-char (point-max))
- (when (and (eq (move-to-column column) column)
- (get-text-property (point) 'mouse-face))
- (setq pos (point)))
- (while (and (not pos) (< line (line-number-at-pos)))
- (forward-line -1)
+ (setq found nil pos nil column (current-column) line (line-number-a=
t-pos)
+ first (=3D (point) (save-excursion (first-completion) (point)=
)))
+ (if (and (eq completions-format 'vertical)
+ completion-auto-wrap first)
+ (last-completion) ; Wrap from first to last item.
+ (completion--move-to-candidate-start)
+ (while (and (not found)
+ (eq (forward-line -1) 0)
+ (move-to-column column))
+ (when (get-text-property (point) 'mouse-face)
+ (setq found t)))
+ (when (not found)
+ (if (and (not completion-auto-wrap)
+ (when (eq completions-format 'vertical) first))
+ (first-completion)
+ (save-excursion
+ (goto-char (point-max))
(when (and (eq (move-to-column column) column)
(get-text-property (point) 'mouse-face))
- (setq pos (point)))))
- (if pos (goto-char pos))))
+ (setq pos (point)))
+ (while (and (not pos) (< line (line-number-at-pos)))
+ (forward-line -1)
+ (when (and (eq (move-to-column column) column)
+ (get-text-property (point) 'mouse-face))
+ (setq pos (point)))))
+ (if pos (goto-char pos))
+ (when (eq completions-format 'vertical)
+ (previous-column-completion 1) ; Move to previous column.
+ (setq column (current-column))
+ ;; Move to last item in this column (previous column may
+ ;; have fewer items).
+ (while (not (eobp))
+ (move-to-column column)
+ (setq pos (point))
+ (forward-line))
+ (goto-char pos)))))
(setq n (1+ n)))))
=20
+(defun next-completion (&optional n)
+ "Move according to `completions-format' to next completion item.
+In horizontal format movement is between columns within the same line,
+in vertical format between lines within the same column. With non-nil
+`completion-auto-wrap', movement continues to the next line or column,
+respectively."
+ (interactive "p")
+ (pcase completions-format
+ ('vertical (next-line-completion n))
+ (_ (next-column-completion n))))
+
+(defun previous-completion (&optional n)
+ "Move according to `completions-format' to previous completion item.
+In horizontal format movement is between columns within the same line,
+in vertical format between lines within the same column. With non-nil
+`completion-auto-wrap', movement continues to the next line or column,
+respectively."
+ (interactive "p")
+ (pcase completions-format
+ ('vertical (previous-line-completion n))
+ (_ (previous-column-completion n))))
+
(defvar choose-completion-deselect-if-after nil
"If non-nil, don't choose a completion candidate if point is right afte=
r it.
=20
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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From: Juri Linkov <juri@HIDDEN>
To: Stephen Berman <stephen.berman@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
In-Reply-To: <87tt3ioe3a.fsf@HIDDEN>
Organization: LINKOV.NET
References: <CAH8Pv0hAOUwCxyHP_gJdWuuP16U+LYWWpAhopwbPVSDHukAURg@HIDDEN>
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Date: Sun, 13 Jul 2025 09:50:47 +0300
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>> Given that 'next-completion' moves column-wise, and
>> 'next-line-completion' moves line-wise, what word
>> would describe the behavior of the new commands
>> that choose the motion direction based on whether
>> the completion list is formatted horizontally or vertically?
>> Maybe 'next-completion-adaptive'? Or something that
>> makes a reference to "logical order"?
>
> It's too bad `next-completion' wasn't called `next-column-completion'
> (and likewise for `previous-completion'), but I guess we can't change
> that now. "-adaptive" and "-logical" seem too vague or unspecific.
`next-column-completion' would be perfect. And it looks safe
since it requires changing only 2 keybindings [left] and [right]:
(define-key map [up] 'previous-line-completion)
(define-key map [down] 'next-line-completion)
(define-key map [left] 'previous-column-completion)
(define-key map [right] 'next-column-completion)
(define-key map [?\t] 'next-completion)
(define-key map [backtab] 'previous-completion)
(define-key map "n" 'next-completion)
(define-key map "p" 'previous-completion)
All other keybindings "n", "p", TAB, S-TAB will be directional
depending on 'completions-format'.
> Perhaps "-direction" or "-bearing" or "-orientation"? Though they all
> sound rather clumsy. Or "-axis"? Should I ask for suggestions on
> emacs-devel?
Probably emacs-devel should be notified on addition of `next-column-completion'.
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Juri Linkov <juri@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
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Content preview: On Fri, 11 Jul 2025 19:03:33 +0300 Juri Linkov wrote: >>>
Then for `last-completion' is it possible to call >>> `first-completion',
then `previous-completion' >>> will go to the last column,
then `previous-line-completion'
>>> could wrap to its bottom? > [...]
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Content preview: On Fri, 11 Jul 2025 19:03:33 +0300 Juri Linkov wrote: >>>
Then for `last-completion' is it possible to call >>> `first-completion',
then `previous-completion' >>> will go to the last column, then `previous-line-completion'
>>> could wrap to its bottom? > [...]
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On Fri, 11 Jul 2025 19:03:33 +0300 Juri Linkov <juri@HIDDEN> wrote:
>>> Then for `last-completion' is it possible to call
>>> `first-completion', then `previous-completion'
>>> will go to the last column, then `previous-line-completion'
>>> could wrap to its bottom?
>>
>> ...this doesn't work, because calling `(previous-completion 1)' with
>> point on the first completion item moves point to the last item of the
>> second column, not of last column. I haven't found a simpler way to get
>> the right behavior for `last-completion' in vertical format than what I
>> implemented in the previous patch, so I've kept that in the current
>> patch.
>
> This is an interesting case: instead of going to the last column of
> the last row, for vertical format we need to go to the last row of
> the last column. There is no simple way because `previous-completion'
> doesn't keep the same row when wrapping (and shouldn't).
That's basically my conclusion as well.
>> - (define-key map "n" 'next-completion)
>> - (define-key map "p" 'previous-completion)
>> + (define-key map "n" 'next-completion-switch)
>> + (define-key map "p" 'previous-completion-switch)
>
> Before installing the final version of the patch
> could we find a better names for these commands?
Hopefully; these were just placeholders, because I couldn't think of
anything better.
> Given that 'next-completion' moves column-wise, and
> 'next-line-completion' moves line-wise, what word
> would describe the behavior of the new commands
> that choose the motion direction based on whether
> the completion list is formatted horizontally or vertically?
> Maybe 'next-completion-adaptive'? Or something that
> makes a reference to "logical order"?
It's too bad `next-completion' wasn't called `next-column-completion'
(and likewise for `previous-completion'), but I guess we can't change
that now. "-adaptive" and "-logical" seem too vague or unspecific.
Perhaps "-direction" or "-bearing" or "-orientation"? Though they all
sound rather clumsy. Or "-axis"? Should I ask for suggestions on
emacs-devel?
Steve Berman
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
Full text available.Received: (at 78959) by debbugs.gnu.org; 11 Jul 2025 16:13:53 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Jul 11 12:13:53 2025 Received: from localhost ([127.0.0.1]:38840 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1uaGNk-0007oh-Di for submit <at> debbugs.gnu.org; Fri, 11 Jul 2025 12:13:52 -0400 Received: from mout-y-209.mailbox.org ([91.198.250.237]:47426) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <juri@HIDDEN>) id 1uaGNh-0007nr-8O for 78959 <at> debbugs.gnu.org; Fri, 11 Jul 2025 12:13:50 -0400 Received: from smtp2.mailbox.org (smtp2.mailbox.org [IPv6:2001:67c:2050:b231:465::2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-y-209.mailbox.org (Postfix) with ESMTPS id 4bdxbQ5xzkzB0bb; Fri, 11 Jul 2025 18:13:38 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linkov.net; s=MBO0001; t=1752250418; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=o5J08Ry0B2/F6+dHxt8EeDFrBDs5lbF35DeYSO/xjsw=; b=v8ZFQXEhv+FkdO21z3f1MhGMX49/yHArCd84nVhP7tAxxME+/Cpsm6xojI+EOJI9pf+v+r NUkdNoHI4rds9XRD4W3uAMVOeSeZAuGqnVI1iKCaqqqswF5LDrFdj5hg+GBB6tCuSeyZL4 HfAZ276JeQoRNDljy1pPCAzblNPqedazAc10n8WHf+JrMKoVu7vnj1fwQk4cFkwviyr7FK iGpYfDqzOWznz9cgCnjQAq6HcKN+DDAo6b9bN5iTyoYf2WmaEva+7uk4/VHa82KGuuukGn DquNGEqL3QvCTmUmVx2gY9ATb5SdQs9f+W3vWrl8mR3KAMAu88E+ghY1IakL7A== Authentication-Results: outgoing_mbo_mout; dkim=none; spf=pass (outgoing_mbo_mout: domain of juri@HIDDEN designates 2001:67c:2050:b231:465::2 as permitted sender) smtp.mailfrom=juri@HIDDEN From: Juri Linkov <juri@HIDDEN> To: Stephen Berman <stephen.berman@HIDDEN> Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n' and 'p' In-Reply-To: <8734b3otqn.fsf@HIDDEN> Organization: LINKOV.NET References: <CAH8Pv0hAOUwCxyHP_gJdWuuP16U+LYWWpAhopwbPVSDHukAURg@HIDDEN> <87ecuuwj7j.fsf@HIDDEN> <87o6tw4hbo.fsf@HIDDEN> <874ivo77vt.fsf@HIDDEN> <87wm8k2cjm.fsf@HIDDEN> <87ldozyt8r.fsf@HIDDEN> <875xg1sxxc.fsf@HIDDEN> <87a55cc9q9.fsf@HIDDEN> <87tt3jg9v2.fsf@HIDDEN> <8734b3otqn.fsf@HIDDEN> Date: Fri, 11 Jul 2025 19:03:33 +0300 Message-ID: <87ikjyeqqi.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain X-Rspamd-Queue-Id: 4bdxbQ5xzkzB0bb X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 78959 Cc: 78959 <at> debbugs.gnu.org, Dani Moncayo <dmoncayo@HIDDEN> X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) >> Then for `last-completion' is it possible to call >> `first-completion', then `previous-completion' >> will go to the last column, then `previous-line-completion' >> could wrap to its bottom? > > ...this doesn't work, because calling `(previous-completion 1)' with > point on the first completion item moves point to the last item of the > second column, not of last column. I haven't found a simpler way to get > the right behavior for `last-completion' in vertical format than what I > implemented in the previous patch, so I've kept that in the current > patch. This is an interesting case: instead of going to the last column of the last row, for vertical format we need to go to the last row of the last column. There is no simple way because `previous-completion' doesn't keep the same row when wrapping (and shouldn't). > - (define-key map "n" 'next-completion) > - (define-key map "p" 'previous-completion) > + (define-key map "n" 'next-completion-switch) > + (define-key map "p" 'previous-completion-switch) Before installing the final version of the patch could we find a better names for these commands? Given that 'next-completion' moves column-wise, and 'next-line-completion' moves line-wise, what word would describe the behavior of the new commands that choose the motion direction based on whether the completion list is formatted horizontally or vertically? Maybe 'next-completion-adaptive'? Or something that makes a reference to "logical order"?
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Juri Linkov <juri@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
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Content preview: On Thu, 10 Jul 2025 21:48:49 +0300 Juri Linkov wrote: >>>
Do I understand correctly that you mean such behavior: >>> when
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Content preview: On Thu, 10 Jul 2025 21:48:49 +0300 Juri Linkov wrote: >>>
Do I understand correctly that you mean such behavior: >>> when `next-line-completion'
reaches the bottom of the column >>> it should wrap to the top of the next
column? >> >> Yes. >> >>> If you w [...]
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--=-=-=
Content-Type: text/plain
On Thu, 10 Jul 2025 21:48:49 +0300 Juri Linkov <juri@HIDDEN> wrote:
>>> Do I understand correctly that you mean such behavior:
>>> when `next-line-completion' reaches the bottom of the column
>>> it should wrap to the top of the next column?
>>
>> Yes.
>>
>>> If you will improve `next-line-completion', this will provide
>>> symmetry between `next-completion' and `next-line-completion'.
>>
>> Ok, I've tried to do that in the attached patch. This also required
>> changes in `last-completion', which did not DTRT in vertical format. I
>> think this patch improves on my previous patch, in terms of both the
>> code (which nevertheless remains rather convoluted) and the coverage (my
>> previous patch did not work right in vertical format when all columns of
>> completions have the same number of lines). I've tested the patch with
>> -Q and all combinations of values of `completions-format' and
>> `completion-auto-wrap', and the resulting behavior seems sensible in
>> each case.
>
> I expected that the patch would be much simpler:
> after wrapping to the top of the current column
> would it be enough just to call `next-completion'
> to go to the next column on the same first row?
>
> And for `previous-line-completion' would it be simpler
> to call `previous-completion' to go to the previous column,
> and afterwards wrap to the bottom of the same column?
Thanks for pointing this out; I wonder why it hadn't occurred to me....
I've done this now in the attached patch; I did have to add some special
handling for (non-)wrapping according to the value of
`completion-auto-wrap', but the overall code changes are much simpler
than before, except...
> Then for `last-completion' is it possible to call
> `first-completion', then `previous-completion'
> will go to the last column, then `previous-line-completion'
> could wrap to its bottom?
...this doesn't work, because calling `(previous-completion 1)' with
point on the first completion item moves point to the last item of the
second column, not of last column. I haven't found a simpler way to get
the right behavior for `last-completion' in vertical format than what I
implemented in the previous patch, so I've kept that in the current
patch.
>>> Or wrapping to the next column should be optional?
>>> Then maybe in your `next-completion-switch',
>>> `(next-line-completion n)' should be called with a new argument e.g.
>>> `(next-line-completion n 'next-column)'?
>>
>> I decided not to implement this, because it doesn't seem very useful to
>> me: the user can just stop hitting `n', `p', `down' or `up' to avoid
>> wrapping (and `left' and `right' still move between columns).
>
> So to achieve the previous behavior it is easy
> to type `left' or `right' after wrapping to go
> back to the original column?
That only works when the *Completions* buffer contains just two equally
long columns of completions. With three columns, or when the final
column is shorter than the other(s), simply typing `left' and `right'
doesn't always yield the previous behavior. I haven't debugged this yet
and, unless there's an easy fix, I'm not sure it's worth the effort,
since with at most just a few more keystrokes you can move point to the
desired position. (And even in the current code, moving between columns
is not always line-preserving when the last column is shorter.)
Steve Berman
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment
Content-Description: next/previous completions patch
Content-Transfer-Encoding: quoted-printable
diff --git a/lisp/simple.el b/lisp/simple.el
index fa173b26289..e20c0ce65a0 100644
=2D-- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -10041,8 +10041,8 @@ completion-list-mode-map
(define-key map [M-down] 'minibuffer-next-completion)
(define-key map "\M-\r" 'minibuffer-choose-completion)
(define-key map "z" 'kill-current-buffer)
- (define-key map "n" 'next-completion)
- (define-key map "p" 'previous-completion)
+ (define-key map "n" 'next-completion-switch)
+ (define-key map "p" 'previous-completion-switch)
(define-key map "\M-g\M-c" 'switch-to-minibuffer)
map)
"Local map for completion list buffers.")
@@ -10124,12 +10124,33 @@ first-completion
(defun last-completion ()
"Move to the last item in the completions buffer."
(interactive)
+ ;; Move to the last item in horizontal or one-column format.
(goto-char (previous-single-property-change
(point-max) 'mouse-face nil (point-min)))
- ;; Move to the start of last one.
+ ;; Move to the start of the item.
(unless (get-text-property (point) 'mouse-face)
(when-let* ((pos (previous-single-property-change (point) 'mouse-face=
)))
- (goto-char pos))))
+ (goto-char pos)))
+ ;; In vertical format the last item is in the last column even if its
+ ;; line number is less than that of the last item in earlier columns.
+ (when (eq completions-format 'vertical)
+ (let* ((pt (point))
+ (col (current-column))
+ (last (progn
+ (first-completion)
+ (goto-char (pos-eol))
+ (goto-char (previous-single-property-change
+ (point) 'mouse-face))
+ (current-column))))
+ (when (> last col)
+ (while (=3D (current-column) last)
+ (forward-line)
+ (unless (eobp)
+ (goto-char (pos-eol))
+ (move-to-column last)
+ (when (=3D (current-column) last)
+ (setq pt (point))))))
+ (goto-char pt))))
=20
(defun previous-completion (n)
"Move to the previous item in the completions buffer.
@@ -10220,7 +10241,11 @@ next-completion
=20
(defun previous-line-completion (&optional n)
"Move to completion candidate on the previous line in the completions b=
uffer.
-With prefix argument N, move back N lines (negative N means move forward)=
.
+With prefix argument N, move back N lines (negative N means move
+forward). In vertical format (see user option `completions-format')
+this command moves column-wise through all items in the completions
+buffer, in horizontal format movement is confined to the current column
+of completions.
=20
Also see the `completion-auto-wrap' variable."
(interactive "p")
@@ -10228,11 +10253,15 @@ previous-line-completion
=20
(defun next-line-completion (&optional n)
"Move to completion candidate on the next line in the completions buffe=
r.
-With prefix argument N, move N lines forward (negative N means move backw=
ard).
+With prefix argument N, move N lines forward (negative N means move
+backward). In vertical format (see user option `completions-format')
+this command moves column-wise through all items in the completions
+buffer, in horizontal format movement is confined to the current column
+of completions.
=20
Also see the `completion-auto-wrap' variable."
(interactive "p")
- (let (line column pos found)
+ (let (line column pos found last first)
(when (and (bobp)
(> n 0)
(get-text-property (point) 'mouse-face)
@@ -10257,54 +10286,90 @@ next-line-completion
((< n 0) (first-completion)))))
=20
(while (> n 0)
- (setq found nil pos nil column (current-column) line (line-number-a=
t-pos))
- (completion--move-to-candidate-end)
- (while (and (not found)
- (eq (forward-line 1) 0)
- (not (eobp))
- (move-to-column column))
- (when (get-text-property (point) 'mouse-face)
- (setq found t)))
- (when (not found)
- (if (not completion-auto-wrap)
- (last-completion)
- (save-excursion
- (goto-char (point-min))
- (when (and (eq (move-to-column column) column)
- (get-text-property (point) 'mouse-face))
- (setq pos (point)))
- (while (and (not pos) (> line (line-number-at-pos)))
- (forward-line 1)
+ (setq found nil pos nil column (current-column) line (line-number-a=
t-pos)
+ last (=3D (point) (save-excursion (last-completion) (point)))=
)
+ (if (and (eq completions-format 'vertical)
+ completion-auto-wrap last)
+ (first-completion) ; Wrap from last to first item.
+ (completion--move-to-candidate-end)
+ (while (and (not found)
+ (eq (forward-line 1) 0)
+ (not (eobp))
+ (move-to-column column))
+ (when (get-text-property (point) 'mouse-face)
+ (setq found t)))
+ (when (not found)
+ (if (and (not completion-auto-wrap)
+ (when (eq completions-format 'vertical) last))
+ (last-completion)
+ (save-excursion
+ (goto-char (point-min))
(when (and (eq (move-to-column column) column)
(get-text-property (point) 'mouse-face))
- (setq pos (point)))))
- (if pos (goto-char pos))))
+ (setq pos (point)))
+ (while (and (not pos) (> line (line-number-at-pos)))
+ (forward-line 1)
+ (when (and (eq (move-to-column column) column)
+ (get-text-property (point) 'mouse-face))
+ (setq pos (point)))))
+ (if pos (goto-char pos))
+ (when (eq completions-format 'vertical)
+ (next-completion 1))))) ; Move to next column.
(setq n (1- n)))
=20
(while (< n 0)
- (setq found nil pos nil column (current-column) line (line-number-a=
t-pos))
- (completion--move-to-candidate-start)
- (while (and (not found)
- (eq (forward-line -1) 0)
- (move-to-column column))
- (when (get-text-property (point) 'mouse-face)
- (setq found t)))
- (when (not found)
- (if (not completion-auto-wrap)
- (first-completion)
- (save-excursion
- (goto-char (point-max))
- (when (and (eq (move-to-column column) column)
- (get-text-property (point) 'mouse-face))
- (setq pos (point)))
- (while (and (not pos) (< line (line-number-at-pos)))
- (forward-line -1)
+ (setq found nil pos nil column (current-column) line (line-number-a=
t-pos)
+ first (=3D (point) (save-excursion (first-completion) (point)=
)))
+ (if (and (eq completions-format 'vertical)
+ completion-auto-wrap first)
+ (last-completion) ; Wrap from first to last item.
+ (completion--move-to-candidate-start)
+ (while (and (not found)
+ (eq (forward-line -1) 0)
+ (move-to-column column))
+ (when (get-text-property (point) 'mouse-face)
+ (setq found t)))
+ (when (not found)
+ (if (and (not completion-auto-wrap)
+ (when (eq completions-format 'vertical) first))
+ (first-completion)
+ (save-excursion
+ (goto-char (point-max))
(when (and (eq (move-to-column column) column)
(get-text-property (point) 'mouse-face))
- (setq pos (point)))))
- (if pos (goto-char pos))))
+ (setq pos (point)))
+ (while (and (not pos) (< line (line-number-at-pos)))
+ (forward-line -1)
+ (when (and (eq (move-to-column column) column)
+ (get-text-property (point) 'mouse-face))
+ (setq pos (point)))))
+ (if pos (goto-char pos))
+ (when (eq completions-format 'vertical)
+ (previous-completion 1) ; Move to previous column.
+ (setq column (current-column))
+ ;; Move to last item in this column (previous column may
+ ;; have fewer items).
+ (while (not (eobp))
+ (move-to-column column)
+ (setq pos (point))
+ (forward-line))
+ (goto-char pos)))))
(setq n (1+ n)))))
=20
+(defun next-completion-switch (&optional n)
+ "Move according to `completions-format' to next completion item."
+ (interactive "p")
+ (pcase completions-format
+ ('vertical (next-line-completion n))
+ (_ (next-completion n))))
+
+(defun previous-completion-switch (&optional n)
+ "Move according to `completions-format' to previous completion item."
+ (interactive "p")
+ (pcase completions-format
+ ('vertical (previous-line-completion n))
+ (_ (previous-completion n))))
+
(defvar choose-completion-deselect-if-after nil
"If non-nil, don't choose a completion candidate if point is right afte=
r it.
=20
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
Full text available.Received: (at 78959) by debbugs.gnu.org; 10 Jul 2025 18:51:47 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Jul 10 14:51:47 2025 Received: from localhost ([127.0.0.1]:59655 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1uZwMz-0006Ov-GF for submit <at> debbugs.gnu.org; Thu, 10 Jul 2025 14:51:47 -0400 Received: from mout-y-209.mailbox.org ([2001:67c:2050:103:465::209]:48604) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <juri@HIDDEN>) id 1uZwMu-0006N0-Nj for 78959 <at> debbugs.gnu.org; Thu, 10 Jul 2025 14:51:43 -0400 Received: from smtp102.mailbox.org (smtp102.mailbox.org [10.196.197.102]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-y-209.mailbox.org (Postfix) with ESMTPS id 4bdP835xyXzB0Fm; Thu, 10 Jul 2025 20:51:31 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linkov.net; s=MBO0001; t=1752173491; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=KZDQAkMymA8UZE9lOIbytCbJzou6RBO4W7Z4LZkY89c=; b=14Dl5oItLxRgAoGusHkBDpmVWU/mTY2MeouB32Wrww/O324Ezf3ims7qD1BpQykhtQ+2Wl gQ1HkCIiT+KDQsg+KemQw6PA+LW7ODu1iQUHZvZn4yl8kX/2JTsInygfvv/3dazHjJR4ju XmDi0zAvHEi4/GZ69zYYbUlDCLHzgfl1lHmG4MLt5p5E1LagKM98I6ZdRY2SMeSewxfQI5 ktlBTZ/J09r06tV14CB1Ti8XvJlA5Ts49unra4IGDImsHClljGhHf2j5e03/IpJKSOrUpB lJ1sLg924k5L7HcxKVV3wPsVrOaKwJMRFQm5Ojwn+xTiEal/N647MfcVHq4c+A== From: Juri Linkov <juri@HIDDEN> To: Stephen Berman <stephen.berman@HIDDEN> Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n' and 'p' In-Reply-To: <87a55cc9q9.fsf@HIDDEN> Organization: LINKOV.NET References: <CAH8Pv0hAOUwCxyHP_gJdWuuP16U+LYWWpAhopwbPVSDHukAURg@HIDDEN> <87ecuuwj7j.fsf@HIDDEN> <87o6tw4hbo.fsf@HIDDEN> <874ivo77vt.fsf@HIDDEN> <87wm8k2cjm.fsf@HIDDEN> <87ldozyt8r.fsf@HIDDEN> <875xg1sxxc.fsf@HIDDEN> <87a55cc9q9.fsf@HIDDEN> Date: Thu, 10 Jul 2025 21:48:49 +0300 Message-ID: <87tt3jg9v2.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 78959 Cc: 78959 <at> debbugs.gnu.org, Dani Moncayo <dmoncayo@HIDDEN> X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) >> Do I understand correctly that you mean such behavior: >> when `next-line-completion' reaches the bottom of the column >> it should wrap to the top of the next column? > > Yes. > >> If you will improve `next-line-completion', this will provide >> symmetry between `next-completion' and `next-line-completion'. > > Ok, I've tried to do that in the attached patch. This also required > changes in `last-completion', which did not DTRT in vertical format. I > think this patch improves on my previous patch, in terms of both the > code (which nevertheless remains rather convoluted) and the coverage (my > previous patch did not work right in vertical format when all columns of > completions have the same number of lines). I've tested the patch with > -Q and all combinations of values of `completions-format' and > `completion-auto-wrap', and the resulting behavior seems sensible in > each case. I expected that the patch would be much simpler: after wrapping to the top of the current column would it be enough just to call `next-completion' to go to the next column on the same first row? And for `previous-line-completion' would it be simpler to call `previous-completion' to go to the previous column, and afterwards wrap to the bottom of the same column? Then for `last-completion' is it possible to call `first-completion', then `previous-completion' will go to the last column, then `previous-line-completion' could wrap to its bottom? >> Or wrapping to the next column should be optional? >> Then maybe in your `next-completion-switch', >> `(next-line-completion n)' should be called with a new argument e.g. >> `(next-line-completion n 'next-column)'? > > I decided not to implement this, because it doesn't seem very useful to > me: the user can just stop hitting `n', `p', `down' or `up' to avoid > wrapping (and `left' and `right' still move between columns). So to achieve the previous behavior it is easy to type `left' or `right' after wrapping to go back to the original column?
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Juri Linkov <juri@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
In-Reply-To: <875xg1sxxc.fsf@HIDDEN>
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--=-=-=
Content-Type: text/plain
On Wed, 09 Jul 2025 09:16:43 +0300 Juri Linkov <juri@HIDDEN> wrote:
>>> When the display is horizontal, 'n' and 'p' could use
>>> `next-completion' to `next-line-completion'.
>>> When the display is vertical, 'n' and 'p' could use
>>> `next-line-completion' and `previous-line-completion'.
>>
>> I think either I don't understand your proposal or you misunderstand the
>> issue. If your proposal is correctedly implemented with the attached
>> patch, then it doesn't DTRT: setting `completions-format' to 'vertical,
>> typing `M-x auto- TAB M-v' and then typing `n' and `p' repeatedly only
>> moves between items in the first column of the *Completions* buffer.
>> What the OP wanted, and my patch provides, is movement column-wise
>> between all items. I don't see how `{next,previous}-line-completion'
>> can do this as currently implemented. If misunderstood your proposal,
>> please clarify it.
>
> Do I understand correctly that you mean such behavior:
> when `next-line-completion' reaches the bottom of the column
> it should wrap to the top of the next column?
Yes.
> If you will improve `next-line-completion', this will provide
> symmetry between `next-completion' and `next-line-completion'.
Ok, I've tried to do that in the attached patch. This also required
changes in `last-completion', which did not DTRT in vertical format. I
think this patch improves on my previous patch, in terms of both the
code (which nevertheless remains rather convoluted) and the coverage (my
previous patch did not work right in vertical format when all columns of
completions have the same number of lines). I've tested the patch with
-Q and all combinations of values of `completions-format' and
`completion-auto-wrap', and the resulting behavior seems sensible in
each case.
> Or wrapping to the next column should be optional?
> Then maybe in your `next-completion-switch',
> `(next-line-completion n)' should be called with a new argument e.g.
> `(next-line-completion n 'next-column)'?
I decided not to implement this, because it doesn't seem very useful to
me: the user can just stop hitting `n', `p', `down' or `up' to avoid
wrapping (and `left' and `right' still move between columns).
Steve Berman
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment
Content-Description: next/previous completions patch
Content-Transfer-Encoding: quoted-printable
diff --git a/lisp/simple.el b/lisp/simple.el
index fa173b26289..d60b6a23e73 100644
=2D-- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -10041,8 +10041,8 @@ completion-list-mode-map
(define-key map [M-down] 'minibuffer-next-completion)
(define-key map "\M-\r" 'minibuffer-choose-completion)
(define-key map "z" 'kill-current-buffer)
- (define-key map "n" 'next-completion)
- (define-key map "p" 'previous-completion)
+ (define-key map "n" 'next-completion-switch)
+ (define-key map "p" 'previous-completion-switch)
(define-key map "\M-g\M-c" 'switch-to-minibuffer)
map)
"Local map for completion list buffers.")
@@ -10124,12 +10124,33 @@ first-completion
(defun last-completion ()
"Move to the last item in the completions buffer."
(interactive)
+ ;; Move to the last item in horizontal or one-column format.
(goto-char (previous-single-property-change
(point-max) 'mouse-face nil (point-min)))
- ;; Move to the start of last one.
+ ;; Move to the start of the item.
(unless (get-text-property (point) 'mouse-face)
(when-let* ((pos (previous-single-property-change (point) 'mouse-face=
)))
- (goto-char pos))))
+ (goto-char pos)))
+ ;; In vertical format the last item is in the last column even if its
+ ;; line number is less than that of the last item in earlier columns.
+ (when (eq completions-format 'vertical)
+ (let* ((pt (point))
+ (col (current-column))
+ (last (progn
+ (first-completion)
+ (goto-char (pos-eol))
+ (goto-char (previous-single-property-change
+ (point) 'mouse-face))
+ (current-column))))
+ (when (> last col)
+ (while (=3D (current-column) last)
+ (forward-line)
+ (unless (eobp)
+ (goto-char (pos-eol))
+ (move-to-column last)
+ (when (=3D (current-column) last)
+ (setq pt (point))))))
+ (goto-char pt))))
=20
(defun previous-completion (n)
"Move to the previous item in the completions buffer.
@@ -10228,11 +10249,15 @@ previous-line-completion
=20
(defun next-line-completion (&optional n)
"Move to completion candidate on the next line in the completions buffe=
r.
-With prefix argument N, move N lines forward (negative N means move backw=
ard).
+With prefix argument N, move N lines forward (negative N means move
+backward). In vertical format (see user option `completions-format')
+this command moves column-wise through all items in the completions
+buffer, in horizontal format movement is confined to the current column
+of completions.
=20
Also see the `completion-auto-wrap' variable."
(interactive "p")
- (let (line column pos found)
+ (let (line column pos found first)
(when (and (bobp)
(> n 0)
(get-text-property (point) 'mouse-face)
@@ -10257,32 +10282,57 @@ next-line-completion
((< n 0) (first-completion)))))
=20
(while (> n 0)
- (setq found nil pos nil column (current-column) line (line-number-a=
t-pos))
+ (setq found nil pos (when (eq completions-format 'vertical) (point)=
)
+ column (current-column) line (line-number-at-pos)
+ first (save-excursion (first-completion) (point)))
(completion--move-to-candidate-end)
(while (and (not found)
(eq (forward-line 1) 0)
(not (eobp))
(move-to-column column))
(when (get-text-property (point) 'mouse-face)
- (setq found t)))
+ (setq found t pos (point))))
(when (not found)
- (if (not completion-auto-wrap)
+ (if (and (not completion-auto-wrap)
+ (if (eq completions-format 'vertical)
+ (=3D pos (save-excursion (last-completion) (point)))
+ t))
(last-completion)
- (save-excursion
- (goto-char (point-min))
- (when (and (eq (move-to-column column) column)
- (get-text-property (point) 'mouse-face))
- (setq pos (point)))
- (while (and (not pos) (> line (line-number-at-pos)))
- (forward-line 1)
- (when (and (eq (move-to-column column) column)
- (get-text-property (point) 'mouse-face))
- (setq pos (point)))))
- (if pos (goto-char pos))))
+ (cond ((eq completions-format 'vertical)
+ (goto-char pos)
+ (move-to-column 0)
+ (let ((cnt (count-lines (point) first)))
+ (forward-line (- cnt)))
+ (move-to-column column)
+ (setq pos (point))
+ (when (get-text-property pos 'mouse-face)
+ (let ((pos1 (next-single-property-change pos 'mouse-fa=
ce))
+ pos2)
+ (when pos1 (goto-char pos1))
+ (setq pos2 (next-single-property-change
+ pos1 'mouse-face nil (line-end-position)=
))
+ (goto-char (if (=3D pos2 pos1) first pos2))
+ (when (memq (point) (list first pos2))
+ (setq pos (point))))))
+ (t
+ (save-excursion
+ (goto-char (point-min))
+ (when (and (eq (move-to-column column) column)
+ (get-text-property (point) 'mouse-face))
+ (setq pos (point)))
+ (while (and (not pos) (> line (line-number-at-pos)))
+ (forward-line 1)
+ (when (and (eq (move-to-column column) column)
+ (get-text-property (point) 'mouse-face))
+ (setq pos (point)))))))
+ (when pos (goto-char pos))))
(setq n (1- n)))
=20
(while (< n 0)
- (setq found nil pos nil column (current-column) line (line-number-a=
t-pos))
+ (setq found nil pos (point) column (current-column)
+ line (line-number-at-pos) first (save-excursion
+ (first-completion)
+ (point)))
(completion--move-to-candidate-start)
(while (and (not found)
(eq (forward-line -1) 0)
@@ -10290,21 +10340,63 @@ next-line-completion
(when (get-text-property (point) 'mouse-face)
(setq found t)))
(when (not found)
- (if (not completion-auto-wrap)
+ (if (and (not completion-auto-wrap)
+ (if (eq completions-format 'vertical)
+ (=3D pos first)
+ t))
(first-completion)
- (save-excursion
- (goto-char (point-max))
- (when (and (eq (move-to-column column) column)
- (get-text-property (point) 'mouse-face))
- (setq pos (point)))
- (while (and (not pos) (< line (line-number-at-pos)))
- (forward-line -1)
- (when (and (eq (move-to-column column) column)
- (get-text-property (point) 'mouse-face))
- (setq pos (point)))))
+ (cond ((eq completions-format 'vertical)
+ (goto-char pos)
+ (let* ((wrap (=3D (point) first))
+ (pos1 (previous-single-property-change pos 'mouse=
-face))
+ (pos2 (if pos1
+ (progn
+ (goto-char pos1)
+ (previous-single-property-change
+ pos1 'mouse-face nil
+ (line-beginning-position)))
+ pos))
+ column)
+ (when pos1
+ (goto-char (if (=3D pos2 pos1) first pos2)))
+ (when (memq (point) (list first pos2))
+ (setq pos (point) column (current-column)))
+ (while (not (eobp))
+ (setq pos1 (point))
+ (forward-line))
+ (if wrap
+ (last-completion)
+ (goto-char pos1)
+ (move-to-column column))
+ (setq pos nil)))
+ (t
+ (save-excursion
+ (goto-char (point-max))
+ (when (and (eq (move-to-column column) column)
+ (get-text-property (point) 'mouse-face))
+ (setq pos (point)))
+ (while (and (not pos) (< line (line-number-at-pos)))
+ (forward-line -1)
+ (when (and (eq (move-to-column column) column)
+ (get-text-property (point) 'mouse-face))
+ (setq pos (point)))))))
(if pos (goto-char pos))))
(setq n (1+ n)))))
=20
+(defun next-completion-switch (&optional n)
+ "Move according to `completions-format' to next completion item."
+ (interactive "p")
+ (pcase completions-format
+ ('vertical (next-line-completion n))
+ (_ (next-completion n))))
+
+(defun previous-completion-switch (&optional n)
+ "Move according to `completions-format' to previous completion item."
+ (interactive "p")
+ (pcase completions-format
+ ('vertical (previous-line-completion n))
+ (_ (previous-completion n))))
+
(defvar choose-completion-deselect-if-after nil
"If non-nil, don't choose a completion candidate if point is right afte=
r it.
=20
--=-=-=--
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From: Juri Linkov <juri@HIDDEN>
To: Stephen Berman <stephen.berman@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
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>> When the display is horizontal, 'n' and 'p' could use
>> `next-completion' to `next-line-completion'.
>> When the display is vertical, 'n' and 'p' could use
>> `next-line-completion' and `previous-line-completion'.
>
> I think either I don't understand your proposal or you misunderstand the
> issue. If your proposal is correctedly implemented with the attached
> patch, then it doesn't DTRT: setting `completions-format' to 'vertical,
> typing `M-x auto- TAB M-v' and then typing `n' and `p' repeatedly only
> moves between items in the first column of the *Completions* buffer.
> What the OP wanted, and my patch provides, is movement column-wise
> between all items. I don't see how `{next,previous}-line-completion'
> can do this as currently implemented. If misunderstood your proposal,
> please clarify it.
Do I understand correctly that you mean such behavior:
when `next-line-completion' reaches the bottom of the column
it should wrap to the top of the next column?
If you will improve `next-line-completion', this will provide
symmetry between `next-completion' and `next-line-completion'.
Or wrapping to the next column should be optional?
Then maybe in your `next-completion-switch',
`(next-line-completion n)' should be called with a new argument e.g.
`(next-line-completion n 'next-column)'?
> @@ -10041,8 +10041,8 @@ completion-list-mode-map
> - (define-key map "n" 'next-completion)
> - (define-key map "p" 'previous-completion)
> + (define-key map "n" 'next-completion-switch)
> + (define-key map "p" 'previous-completion-switch)
> [...]
> +(defun next-completion-switch (&optional n)
> + "Move according to `completions-format' to next completion item."
> + (interactive "p")
> + (pcase completions-format
> + ('horizontal (next-completion n))
> + ('vertical (next-line-completion n))))
> +
> +(defun previous-completion-switch (&optional n)
> + "Move according to `completions-format' to previous completion item."
> + (interactive "p")
> + (pcase completions-format
> + ('horizontal (previous-completion n))
> + ('vertical (previous-line-completion n))))
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Juri Linkov <juri@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
In-Reply-To: <87wm8k2cjm.fsf@HIDDEN>
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Content preview: On Mon, 07 Jul 2025 19:25:33 +0300 Juri Linkov wrote: >>>>>
The same issue reported in this ticket applies to the keys M-<down> >>>>>
and M-<up>, when typed from the minibuffer to navigate among >>>>> completion
candidates. >>>> >>>> I tried to give it a [...]
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--=-=-=
Content-Type: text/plain
On Mon, 07 Jul 2025 19:25:33 +0300 Juri Linkov <juri@HIDDEN> wrote:
>>>>> The same issue reported in this ticket applies to the keys M-<down>
>>>>> and M-<up>, when typed from the minibuffer to navigate among
>>>>> completion candidates.
>>>>
>>>> I tried to give it a shot with the attached patch, which seems to DTRT
>>>> for your test case with `n', `p', `M-<down>' and `M-<up>'. You might
>>>> give it a try and see if you find any problems with it. (But maybe
>>>> don't look at the code too closely, it's ugly as hell....)
>>>
>>> Isn't this just about keybindings? When completions-format is
>>> customizeed to `vertical', keybindings `n' and `p' could be
>>> just remapped from `next-completion' to `next-line-completion',
>>> and from `previous-completion' to `previous-line-completion'.
>>
>> Bindings for `next-line-completion' and `previous-line-completion'
>> already exist in `completions-list-mode-map' (<down> and <up>,
>> respectively), and using these keys with `completions-format' set to
>> 'vertical only moves point within the current column in the
>> *Completions* buffer. You can move to the next or previous column with
>> <right> or <left> and then continue with <up> or <down>. But this bug
>> report was about using the same keys to scroll through all completions
>> in the sorted order according to whether the display is horizontal or
>> vertical; `{next,previous}-line-completion', as currently implemented,
>> don't DTRT for that.
>
> When the display is horizontal, 'n' and 'p' could use
> `next-completion' to `next-line-completion'.
> When the display is vertical, 'n' and 'p' could use
> `next-line-completion' and `previous-line-completion'.
I think either I don't understand your proposal or you misunderstand the
issue. If your proposal is correctedly implemented with the attached
patch, then it doesn't DTRT: setting `completions-format' to 'vertical,
typing `M-x auto- TAB M-v' and then typing `n' and `p' repeatedly only
moves between items in the first column of the *Completions* buffer.
What the OP wanted, and my patch provides, is movement column-wise
between all items. I don't see how `{next,previous}-line-completion'
can do this as currently implemented. If misunderstood your proposal,
please clarify it.
Steve Berman
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment
Content-Description: next/previous completions patch
Content-Transfer-Encoding: quoted-printable
diff --git a/lisp/simple.el b/lisp/simple.el
index fa173b26289..9af3fe15233 100644
=2D-- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -10041,8 +10041,8 @@ completion-list-mode-map
(define-key map [M-down] 'minibuffer-next-completion)
(define-key map "\M-\r" 'minibuffer-choose-completion)
(define-key map "z" 'kill-current-buffer)
- (define-key map "n" 'next-completion)
- (define-key map "p" 'previous-completion)
+ (define-key map "n" 'next-completion-switch)
+ (define-key map "p" 'previous-completion-switch)
(define-key map "\M-g\M-c" 'switch-to-minibuffer)
map)
"Local map for completion list buffers.")
@@ -10305,6 +10305,20 @@ next-line-completion
(if pos (goto-char pos))))
(setq n (1+ n)))))
=20
+(defun next-completion-switch (&optional n)
+ "Move according to `completions-format' to next completion item."
+ (interactive "p")
+ (pcase completions-format
+ ('horizontal (next-completion n))
+ ('vertical (next-line-completion n))))
+
+(defun previous-completion-switch (&optional n)
+ "Move according to `completions-format' to previous completion item."
+ (interactive "p")
+ (pcase completions-format
+ ('horizontal (previous-completion n))
+ ('vertical (previous-line-completion n))))
+
(defvar choose-completion-deselect-if-after nil
"If non-nil, don't choose a completion candidate if point is right afte=
r it.
=20
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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From: Juri Linkov <juri@HIDDEN>
To: Stephen Berman <stephen.berman@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
In-Reply-To: <874ivo77vt.fsf@HIDDEN>
Organization: LINKOV.NET
References: <CAH8Pv0hAOUwCxyHP_gJdWuuP16U+LYWWpAhopwbPVSDHukAURg@HIDDEN>
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Date: Mon, 07 Jul 2025 19:25:33 +0300
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>>>> The same issue reported in this ticket applies to the keys M-<down>
>>>> and M-<up>, when typed from the minibuffer to navigate among
>>>> completion candidates.
>>>
>>> I tried to give it a shot with the attached patch, which seems to DTRT
>>> for your test case with `n', `p', `M-<down>' and `M-<up>'. You might
>>> give it a try and see if you find any problems with it. (But maybe
>>> don't look at the code too closely, it's ugly as hell....)
>>
>> Isn't this just about keybindings? When completions-format is
>> customizeed to `vertical', keybindings `n' and `p' could be
>> just remapped from `next-completion' to `next-line-completion',
>> and from `previous-completion' to `previous-line-completion'.
>
> Bindings for `next-line-completion' and `previous-line-completion'
> already exist in `completions-list-mode-map' (<down> and <up>,
> respectively), and using these keys with `completions-format' set to
> 'vertical only moves point within the current column in the
> *Completions* buffer. You can move to the next or previous column with
> <right> or <left> and then continue with <up> or <down>. But this bug
> report was about using the same keys to scroll through all completions
> in the sorted order according to whether the display is horizontal or
> vertical; `{next,previous}-line-completion', as currently implemented,
> don't DTRT for that.
When the display is horizontal, 'n' and 'p' could use
`next-completion' to `next-line-completion'.
When the display is vertical, 'n' and 'p' could use
`next-line-completion' and `previous-line-completion'.
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Juri Linkov <juri@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
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On Mon, 07 Jul 2025 09:49:23 +0300 Juri Linkov <juri@HIDDEN> wrote:
>>> The same issue reported in this ticket applies to the keys M-<down>
>>> and M-<up>, when typed from the minibuffer to navigate among
>>> completion candidates.
>>
>> I tried to give it a shot with the attached patch, which seems to DTRT
>> for your test case with `n', `p', `M-<down>' and `M-<up>'. You might
>> give it a try and see if you find any problems with it. (But maybe
>> don't look at the code too closely, it's ugly as hell....)
>
> Isn't this just about keybindings? When completions-format is
> customizeed to `vertical', keybindings `n' and `p' could be
> just remapped from `next-completion' to `next-line-completion',
> and from `previous-completion' to `previous-line-completion'.
Bindings for `next-line-completion' and `previous-line-completion'
already exist in `completions-list-mode-map' (<down> and <up>,
respectively), and using these keys with `completions-format' set to
'vertical only moves point within the current column in the
*Completions* buffer. You can move to the next or previous column with
<right> or <left> and then continue with <up> or <down>. But this bug
report was about using the same keys to scroll through all completions
in the sorted order according to whether the display is horizontal or
vertical; `{next,previous}-line-completion', as currently implemented,
don't DTRT for that.
Steve Berman
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
Full text available.Received: (at 78959) by debbugs.gnu.org; 7 Jul 2025 07:00:47 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Jul 07 03:00:47 2025 Received: from localhost ([127.0.0.1]:60886 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1uYfqJ-0005cp-DJ for submit <at> debbugs.gnu.org; Mon, 07 Jul 2025 03:00:47 -0400 Received: from mout-y-111.mailbox.org ([91.198.250.236]:33108) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <juri@HIDDEN>) id 1uYfqF-0005c0-M7 for 78959 <at> debbugs.gnu.org; Mon, 07 Jul 2025 03:00:44 -0400 Received: from smtp2.mailbox.org (smtp2.mailbox.org [10.196.197.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-y-111.mailbox.org (Postfix) with ESMTPS id 4bbFW72Xbzz9xqF; Mon, 7 Jul 2025 09:00:35 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linkov.net; s=MBO0001; t=1751871635; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=tmvHu4+nNBIEzNIUhr+ReXjsCOeSDWWOexD7WSUEQOk=; b=U9Puq3NLH/qNB3z4cr3BeqsXyg2HJZAldxE7FM8wp3CAZ5diNlxHUiKuAEUEQ3LhhE+uoy 6OJDZd02jDLh7Gmkc/DLrXeowKX5TNlZISseTQocYW0Y3HmocrR9FeJADVGKu3Z4aTUuJZ cn1hGbGYQNrOSk/XzjeiS4ARFIJPkIS88VqvT2VYVic4q+mv5x2TyyLv4fMfeOlT7wTT2b h14XKe+QO7m5eJZSWiO74sfnoIwRPZs2A61EaiFhRnLb5mkCpqRXpy0y2MhCr6J5I3rrGU D0uQtq3ne//5K6iKQbRUuHCa3OqW/c3D8vsK4mcPgrWzK9YU6VQ6NVyYi0RANg== From: Juri Linkov <juri@HIDDEN> To: Stephen Berman <stephen.berman@HIDDEN> Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n' and 'p' In-Reply-To: <87ecuuwj7j.fsf@HIDDEN> Organization: LINKOV.NET References: <CAH8Pv0hAOUwCxyHP_gJdWuuP16U+LYWWpAhopwbPVSDHukAURg@HIDDEN> <87ecuuwj7j.fsf@HIDDEN> Date: Mon, 07 Jul 2025 09:49:23 +0300 Message-ID: <87o6tw4hbo.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 78959 Cc: 78959 <at> debbugs.gnu.org, Dani Moncayo <dmoncayo@HIDDEN> X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) >> The same issue reported in this ticket applies to the keys M-<down> >> and M-<up>, when typed from the minibuffer to navigate among >> completion candidates. > > I tried to give it a shot with the attached patch, which seems to DTRT > for your test case with `n', `p', `M-<down>' and `M-<up>'. You might > give it a try and see if you find any problems with it. (But maybe > don't look at the code too closely, it's ugly as hell....) Isn't this just about keybindings? When completions-format is customizeed to `vertical', keybindings `n' and `p' could be just remapped from `next-completion' to `next-line-completion', and from `previous-completion' to `previous-line-completion'.
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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Sun, 06 Jul 2025 04:34:49 -0700 (PDT) MIME-Version: 1.0 References: <CAH8Pv0hAOUwCxyHP_gJdWuuP16U+LYWWpAhopwbPVSDHukAURg@HIDDEN> <87ecuuwj7j.fsf@HIDDEN> <CAH8Pv0j6PprENwoXJUzqct0giE83BtyijPq5UHmzT1Yyr=G4iA@HIDDEN> <CAH8Pv0h7kB43Fjp0v6zYV5N5wSFnp9kfT0hUfRtiRt4AWov7Tg@HIDDEN> <87jz4l4q2m.fsf@HIDDEN> In-Reply-To: <87jz4l4q2m.fsf@HIDDEN> From: Dani Moncayo <dmoncayo@HIDDEN> Date: Sun, 6 Jul 2025 13:34:38 +0200 X-Gm-Features: Ac12FXw6z3L9t6wohsj-ZrF0Gft7LuVfVRnKoQ4hgxohvTiJ-yDEUa3yyI6jLVU Message-ID: <CAH8Pv0icoduUnD5mNcSV8hAszRWNvz_jZv=+vvs7+4OZHWdMkw@HIDDEN> Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n' and 'p' To: Stephen Berman <stephen.berman@HIDDEN> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 78959 Cc: 78959 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On Sun, Jul 6, 2025 at 11:38=E2=80=AFAM Stephen Berman <stephen.berman@gmx.= net> wrote: > > On Sun, 6 Jul 2025 09:22:37 +0200 Dani Moncayo <dmoncayo@HIDDEN> wrote= : > > > On Sun, Jul 6, 2025 at 9:13=E2=80=AFAM Dani Moncayo <dmoncayo@HIDDEN= > wrote: > >> > >> [...] > >> > >> I've just re-tested the recipe of the OP with your patch applied, and > >> it seems to fix the problem. > > > > I just found a minor issue: with completions-format set to 'vertical, i= f I type: > > > > M-x a u t o - <TAB> M-<down> > > > > I get an error in the echo area ([No completion here]), and the cursor > > in the *Completions* buffer is not placed in the first candidate (as > > it should). I have to type a second M-<down> to go to the first > > candidate. > > Thanks for testing and finding this problem! The attached patch > (replacing, not modifying, my previous patch) should fix it. With this one, all seems to work fine. Thanks! --=20 Dani Moncayo
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Dani Moncayo <dmoncayo@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
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--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
On Sun, 6 Jul 2025 09:22:37 +0200 Dani Moncayo <dmoncayo@HIDDEN> wrote:
> On Sun, Jul 6, 2025 at 9:13=E2=80=AFAM Dani Moncayo <dmoncayo@HIDDEN> =
wrote:
>>
>> [...]
>>
>> I've just re-tested the recipe of the OP with your patch applied, and
>> it seems to fix the problem.
>
> I just found a minor issue: with completions-format set to 'vertical, if =
I type:
>
> M-x a u t o - <TAB> M-<down>
>
> I get an error in the echo area ([No completion here]), and the cursor
> in the *Completions* buffer is not placed in the first candidate (as
> it should). I have to type a second M-<down> to go to the first
> candidate.
Thanks for testing and finding this problem! The attached patch
(replacing, not modifying, my previous patch) should fix it.
Steve Berman
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment
Content-Description: next-completion patch
Content-Transfer-Encoding: quoted-printable
diff --git a/lisp/simple.el b/lisp/simple.el
index fa173b26289..c5e70170751 100644
=2D-- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -10177,17 +10177,38 @@ next-completion
;; If in a completion, move to the end of it.
(when (get-text-property pos 'mouse-face)
(setq pos (next-single-property-change pos 'mouse-face)))
- (when pos (setq pos (next-single-property-change pos 'mouse-face)=
))
- (if pos
- ;; Move to the start of next one.
- (goto-char pos)
- ;; If at the last completion option, wrap or skip
- ;; to the minibuffer, if requested.
- (when completion-auto-wrap
- (if (and (eq completion-auto-select t) tabcommand
- (minibufferp completion-reference-buffer))
- (throw 'bound nil)
- (first-completion))))
+ (if (eq completions-format 'vertical)
+ (let ((goal-column (current-column)))
+ (if (bobp)
+ (progn
+ (goto-char (first-completion))
+ (setq goal-column (current-column)))
+ (next-line))
+ (cond ((eq (char-after) 10)
+ (first-completion))
+ ((eobp)
+ (goto-char pos)
+ (let ((cnt (count-lines (point) (save-excursion
+ (first-completion)
+ (point)))))
+ (previous-line (1- cnt)))
+ (setq pos (point))
+ (when (get-text-property pos 'mouse-face)
+ (setq pos (next-single-property-change pos 'mouse-=
face))
+ (when pos (goto-char pos))
+ (setq pos (next-single-property-change pos 'mouse-=
face))
+ (when pos (goto-char pos))))))
+ (when pos (setq pos (next-single-property-change pos 'mouse-fac=
e)))
+ (if pos
+ ;; Move to the start of next one.
+ (goto-char pos)
+ ;; If at the last completion option, wrap or skip
+ ;; to the minibuffer, if requested.
+ (when completion-auto-wrap
+ (if (and (eq completion-auto-select t) tabcommand
+ (minibufferp completion-reference-buffer))
+ (throw 'bound nil)
+ (first-completion)))))
(setq n (1- n)))
=20
(while (< n 0)
@@ -10197,22 +10218,55 @@ next-completion
(not (bobp))
(get-text-property (1- pos) 'mouse-face))
(setq pos (previous-single-property-change pos 'mouse-face)))
- (when pos (setq pos (previous-single-property-change pos 'mouse-f=
ace)))
- (if pos
- (progn
- (goto-char pos)
- ;; Move to the start of that one.
- (unless (get-text-property (point) 'mouse-face)
- (goto-char (previous-single-property-change
- (point) 'mouse-face nil (point-min)))))
- ;; If at the first completion option, wrap or skip
- ;; to the minibuffer, if requested.
- (when completion-auto-wrap
- (if (and (eq completion-auto-select t) tabcommand
- (minibufferp completion-reference-buffer))
- (progn
- (throw 'bound nil))
- (last-completion))))
+ (if (eq completions-format 'vertical)
+ (let ((goal-column (current-column)))
+ (cond ((save-excursion
+ (equal (buffer-substring-no-properties
+ (point)
+ (next-single-property-change (point) 'mous=
e-face))
+ (buffer-substring-no-properties
+ (first-completion)
+ (next-single-property-change (point) 'mous=
e-face))))
+ (end-of-line)
+ (goto-char (previous-single-property-change
+ (point) 'mouse-face))
+ (let ((goal-column (current-column))
+ p)
+ (while (not (or (eobp) (eq (char-after) 10)))
+ (setq p (point))
+ (next-line))
+ (goto-char p)))
+ (t
+ (previous-line)))
+ (when (eq (char-after) 10)
+ (goto-char pos)
+ (when (get-text-property pos 'mouse-face)
+ (setq pos (previous-single-property-change pos 'mouse-f=
ace))
+ (when pos (goto-char pos))
+ (setq pos (previous-single-property-change pos 'mouse-f=
ace))
+ (when pos (goto-char pos)))
+ (let ((goal-column (current-column)))
+ (while (not (or (eobp) (eq (char-after) 10)))
+ (setq p (point))
+ (next-line))
+ (goto-char p))))
+ (when pos
+ (setq pos (previous-single-property-change pos 'mouse-face)))
+ (if pos
+ (progn
+ (goto-char pos)
+ ;; Move to the start of that one.
+ (unless (get-text-property (point) 'mouse-face)
+ (goto-char (previous-single-property-change
+ (point) 'mouse-face nil (point-min)))))
+ ;; If at the first completion option, wrap or skip
+ ;; to the minibuffer, if requested.
+ (when completion-auto-wrap
+ (if (and (eq completion-auto-select t) tabcommand
+ (minibufferp completion-reference-buffer))
+ (progn
+ (throw 'bound nil))
+ (last-completion)))))
(setq n (1+ n))))
=20
(when (/=3D 0 n)
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
Full text available.Received: (at 78959) by debbugs.gnu.org; 6 Jul 2025 07:14:13 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Jul 06 03:14:13 2025 Received: from localhost ([127.0.0.1]:50321 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1uYJZl-0007QW-AJ for submit <at> debbugs.gnu.org; Sun, 06 Jul 2025 03:14:13 -0400 Received: from mail-pj1-x102e.google.com ([2607:f8b0:4864:20::102e]:60624) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from <dmoncayo@HIDDEN>) id 1uYJZi-0007PP-6J for 78959 <at> debbugs.gnu.org; Sun, 06 Jul 2025 03:14:10 -0400 Received: by mail-pj1-x102e.google.com with SMTP id 98e67ed59e1d1-313f68bc519so1618439a91.0 for <78959 <at> debbugs.gnu.org>; Sun, 06 Jul 2025 00:14:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1751786044; x=1752390844; darn=debbugs.gnu.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=dQfDLmVDb7/6armr3AsIJrSwsQu2VQsL528y21xFz8Q=; b=kli/4HYorwBzZ5KCu4qoXt85Z9mjBLl9w9ccXPG1330Zo1wtpv/R8A8IdCcsRybqUb WLMKkZpoapqrXEIIVykcr0qghC6HT/FpQtCpOpCQYH+2z8kt7KDtGQRmbcp13xM2xB4a yk5MesLJS2+M9LFXU2NnUXd9Cy6ZOg2OrWwoUiGKqhERhtq9+oaPYS+DEZu4Qp0nWbDy XnmKDXriHubjdgVG8RYGbRHmks8eMtf8gLUYOr4JfIZjcX9jIK61x0ODU2GOvbXAyOk6 ryTTcooPmg1bPlPyAlRZiJdhZTTPSw/PwfrApOtUab4f1Od1fCqCrkWMcBnRalHk2G8I ya2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751786044; x=1752390844; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=dQfDLmVDb7/6armr3AsIJrSwsQu2VQsL528y21xFz8Q=; b=a2Nggn0fxXlS0tPiErQxFSncDYjAorydrOUkShwndJhYZ4G+DVZrPonF7+SZHkWSA1 ST3O2U6eq2vqZxyqNBfJCPY18mUBMAdq9jfrfKKOvlMdt6lh7pseri20SZnUw5ez/1JX 34GINeAhGjtRB/hlkqpEPELD1iUfvPzqOhBlzBWDcuzP24pBu8s182XueyieH6cN7Lax gwBzw5TbLIb4jL09qzJGmJArkd8ziYXT0ziLTXmCp7l9h0jSIT6FWcAehHNtftMzW+Eu 1X7VOuZNWycHThNILX97/mqTTG1r9QlZPCw24yDOm8umz8Qq8TWcHdEdmdwCCfGaFIdL 7cfQ== X-Gm-Message-State: AOJu0YyskSZcKY5ekN/qTM5jtGedLTiOp+fZgPS5bD0Rw/9bqkbIvie4 tZtSpqD2uIF1+BD2q0GfaebC3h448mxgEeb6UG1xohZafBR3v6ZNc05wW45XDEpV5jL48tyqB9w U5eMlcOfY/7krXLQsiF5lsebpO2gGoAY= X-Gm-Gg: ASbGnctUJjLVwNHKhU+hHY0MRscWL7XDxXrTyU3K4MkHXDqggmO7bjiBYlZP+gYPjf9 oct7rOiM1+cLz9nC+Kc2Zmg15BIeaAIu85j7idBL17yCvyUOnYvdhHPQsP+/Z7uvQRVL2wJjFQB 7kYQMW0CguUYyfIOnoUdyGew/bRAqDKJ8fIVX5jqjyKzo= X-Google-Smtp-Source: AGHT+IFOXSVlzRyyk8zE8XNNSJbR35S4ou11SDzNAPWwI628jJR71qP+nRaZDExEAWTxWrZlLnU/PwQwx6TSPw1lpJY= X-Received: by 2002:a17:90b:584e:b0:312:db8:dbdd with SMTP id 98e67ed59e1d1-31aadd9ffccmr11761377a91.28.1751786043839; Sun, 06 Jul 2025 00:14:03 -0700 (PDT) MIME-Version: 1.0 References: <CAH8Pv0hAOUwCxyHP_gJdWuuP16U+LYWWpAhopwbPVSDHukAURg@HIDDEN> <87ecuuwj7j.fsf@HIDDEN> In-Reply-To: <87ecuuwj7j.fsf@HIDDEN> From: Dani Moncayo <dmoncayo@HIDDEN> Date: Sun, 6 Jul 2025 09:13:52 +0200 X-Gm-Features: Ac12FXy9ZXirFZtBDBS59UT6IBkJC_tUW2nKMSNVpJD6s-hnaNxlXoozdpJPBlo Message-ID: <CAH8Pv0j6PprENwoXJUzqct0giE83BtyijPq5UHmzT1Yyr=G4iA@HIDDEN> Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n' and 'p' To: Stephen Berman <stephen.berman@HIDDEN> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 78959 Cc: 78959 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On Sat, Jul 5, 2025 at 9:06=E2=80=AFPM Stephen Berman <stephen.berman@HIDDEN= et> wrote: > > [...] > > I tried to give it a shot with the attached patch, which seems to DTRT > for your test case with `n', `p', `M-<down>' and `M-<up>'. You might > give it a try and see if you find any problems with it. (But maybe > don't look at the code too closely, it's ugly as hell....) I've just re-tested the recipe of the OP with your patch applied, and it seems to fix the problem. (I can't say almost anything about the code, cause I lack the needed knowledge to assess it). Thanks! --=20 Dani Moncayo
bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Dani Moncayo <dmoncayo@HIDDEN>
Subject: Re: bug#78959: 31.0.50; *Completions* buffer navigation with 'n'
and 'p'
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--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
On Sat, 5 Jul 2025 10:21:34 +0200 Dani Moncayo <dmoncayo@HIDDEN> wrote:
> Starting from =E2=80=98emacs -Q=E2=80=99, type this: M-x a u t o - <TAB>
>
> That should create a *Completions* buffer with some completion
> alternatives sorted alphabetically and arranged in several columns.
>
> OK, now type 'M-v' to select that buffer and try to move around
> completion alternatives with =E2=80=98n=E2=80=99 and =E2=80=98p=E2=80=99.=
Note that these keys move
> among the completion alternatives in alphabetical order, as expected.
>
> Now, repeat the experiment after setting =E2=80=98completions-format=E2=
=80=99 to 'vertical:
> (setq completions-format 'vertical)
>
> This time, =E2=80=98n=E2=80=99 and =E2=80=98p=E2=80=99 do _not_ move in a=
lphabetical order, as (I think)
> they should.
On Sat, 5 Jul 2025 11:39:07 +0200 Dani Moncayo <dmoncayo@HIDDEN> wrote:
> A couple of further remarks.
>
> In general, the navigation among candidates should be consistent with
> the 'completions-sort' setting, I think.
>
> The same issue reported in this ticket applies to the keys M-<down>
> and M-<up>, when typed from the minibuffer to navigate among
> completion candidates.
I tried to give it a shot with the attached patch, which seems to DTRT
for your test case with `n', `p', `M-<down>' and `M-<up>'. You might
give it a try and see if you find any problems with it. (But maybe
don't look at the code too closely, it's ugly as hell....)
Steve Berman
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment
Content-Description: next-completion patch
Content-Transfer-Encoding: quoted-printable
diff --git a/lisp/simple.el b/lisp/simple.el
index fa173b26289..afd6eafe1f4 100644
=2D-- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -10177,17 +10177,34 @@ next-completion
;; If in a completion, move to the end of it.
(when (get-text-property pos 'mouse-face)
(setq pos (next-single-property-change pos 'mouse-face)))
- (when pos (setq pos (next-single-property-change pos 'mouse-face)=
))
- (if pos
- ;; Move to the start of next one.
- (goto-char pos)
- ;; If at the last completion option, wrap or skip
- ;; to the minibuffer, if requested.
- (when completion-auto-wrap
- (if (and (eq completion-auto-select t) tabcommand
- (minibufferp completion-reference-buffer))
- (throw 'bound nil)
- (first-completion))))
+ (if (eq completions-format 'vertical)
+ (let ((goal-column (current-column)))
+ (next-line)
+ (cond ((eq (char-after) 10)
+ (first-completion))
+ ((eobp)
+ (goto-char pos)
+ (let ((cnt (count-lines (point) (save-excursion
+ (first-completion)
+ (point)))))
+ (previous-line (1- cnt)))
+ (setq pos (point))
+ (when (get-text-property pos 'mouse-face)
+ (setq pos (next-single-property-change pos 'mouse-=
face))
+ (when pos (goto-char pos))
+ (setq pos (next-single-property-change pos 'mouse-=
face))
+ (when pos (goto-char pos))))))
+ (when pos (setq pos (next-single-property-change pos 'mouse-fac=
e)))
+ (if pos
+ ;; Move to the start of next one.
+ (goto-char pos)
+ ;; If at the last completion option, wrap or skip
+ ;; to the minibuffer, if requested.
+ (when completion-auto-wrap
+ (if (and (eq completion-auto-select t) tabcommand
+ (minibufferp completion-reference-buffer))
+ (throw 'bound nil)
+ (first-completion)))))
(setq n (1- n)))
=20
(while (< n 0)
@@ -10197,22 +10214,55 @@ next-completion
(not (bobp))
(get-text-property (1- pos) 'mouse-face))
(setq pos (previous-single-property-change pos 'mouse-face)))
- (when pos (setq pos (previous-single-property-change pos 'mouse-f=
ace)))
- (if pos
- (progn
- (goto-char pos)
- ;; Move to the start of that one.
- (unless (get-text-property (point) 'mouse-face)
- (goto-char (previous-single-property-change
- (point) 'mouse-face nil (point-min)))))
- ;; If at the first completion option, wrap or skip
- ;; to the minibuffer, if requested.
- (when completion-auto-wrap
- (if (and (eq completion-auto-select t) tabcommand
- (minibufferp completion-reference-buffer))
- (progn
- (throw 'bound nil))
- (last-completion))))
+ (if (eq completions-format 'vertical)
+ (let ((goal-column (current-column)))
+ (cond ((save-excursion
+ (equal (buffer-substring-no-properties
+ (point)
+ (next-single-property-change (point) 'mous=
e-face))
+ (buffer-substring-no-properties
+ (first-completion)
+ (next-single-property-change (point) 'mous=
e-face))))
+ (end-of-line)
+ (goto-char (previous-single-property-change
+ (point) 'mouse-face))
+ (let ((goal-column (current-column))
+ p)
+ (while (not (or (eobp) (eq (char-after) 10)))
+ (setq p (point))
+ (next-line))
+ (goto-char p)))
+ (t
+ (previous-line)))
+ (when (eq (char-after) 10)
+ (goto-char pos)
+ (when (get-text-property pos 'mouse-face)
+ (setq pos (previous-single-property-change pos 'mouse-f=
ace))
+ (when pos (goto-char pos))
+ (setq pos (previous-single-property-change pos 'mouse-f=
ace))
+ (when pos (goto-char pos)))
+ (let ((goal-column (current-column)))
+ (while (not (or (eobp) (eq (char-after) 10)))
+ (setq p (point))
+ (next-line))
+ (goto-char p))))
+ (when pos
+ (setq pos (previous-single-property-change pos 'mouse-face)))
+ (if pos
+ (progn
+ (goto-char pos)
+ ;; Move to the start of that one.
+ (unless (get-text-property (point) 'mouse-face)
+ (goto-char (previous-single-property-change
+ (point) 'mouse-face nil (point-min)))))
+ ;; If at the first completion option, wrap or skip
+ ;; to the minibuffer, if requested.
+ (when completion-auto-wrap
+ (if (and (eq completion-auto-select t) tabcommand
+ (minibufferp completion-reference-buffer))
+ (progn
+ (throw 'bound nil))
+ (last-completion)))))
(setq n (1+ n))))
=20
(when (/=3D 0 n)
--=-=-=--
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bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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Sat, 05 Jul 2025 01:21:45 -0700 (PDT) MIME-Version: 1.0 From: Dani Moncayo <dmoncayo@HIDDEN> Date: Sat, 5 Jul 2025 10:21:34 +0200 X-Gm-Features: Ac12FXyLLkruzBY4Mxl4JTwchimg3kZikE-nLAFDyE8qi4RmSejL1XXxCngO680 Message-ID: <CAH8Pv0hAOUwCxyHP_gJdWuuP16U+LYWWpAhopwbPVSDHukAURg@HIDDEN> Subject: 31.0.50; *Completions* buffer navigation with 'n' and 'p' To: bug-gnu-emacs <bug-gnu-emacs@HIDDEN> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2607:f8b0:4864:20::1036; envelope-from=dmoncayo@HIDDEN; helo=mail-pj1-x1036.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: 1.0 (+) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -0.0 (/) Starting from =E2=80=98emacs -Q=E2=80=99, type this: M-x a u t o - <TAB> That should create a *Completions* buffer with some completion alternatives sorted alphabetically and arranged in several columns. OK, now type 'M-v' to select that buffer and try to move around completion alternatives with =E2=80=98n=E2=80=99 and =E2=80=98p=E2=80=99. = Note that these keys move among the completion alternatives in alphabetical order, as expected. Now, repeat the experiment after setting =E2=80=98completions-format=E2=80= =99 to 'vertical: (setq completions-format 'vertical) This time, =E2=80=98n=E2=80=99 and =E2=80=98p=E2=80=99 do _not_ move in alp= habetical order, as (I think) they should. --=20 Dani Moncayo In GNU Emacs 31.0.50 (build 46, x86_64-pc-linux-gnu, GTK+ Version 3.24.41, cairo version 1.18.0) of 2025-07-04 built on C11-Q8YAKWONJX0 Repository revision: 763c3cd081a833940961373a73705640b1808636 Repository branch: master Windowing system distributor 'Microsoft Corporation', version 11.0.12010000 System Description: Ubuntu 24.04.2 LTS Configured features: CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG LIBSELINUX LIBXML2 MODULES NOTIFY INOTIFY PDUMPER PNG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER WEBP X11 XDBE XIM XINERAMA XINPUT2 XPM XRANDR GTK3 ZLIB Important settings: value of $LANG: C.UTF-8 locale-coding-system: utf-8-unix
Dani Moncayo <dmoncayo@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#78959; Package emacs.
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