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bug-gnu-emacs@HIDDEN:bug#75886; Package emacs.
Full text available.Debbugs Internal Request <help-debbugs@HIDDEN>
to internal_control <at> debbugs.gnu.org.
Full text available.Gerd Möllmann <gerd.moellmann@HIDDEN>
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[2003:e0:b705:a000:5841:3e49:c028:4fb2]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38c5c1cfa2fsm16338908f8f.91.2025.02.04.06.42.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Feb 2025 06:42:05 -0800 (PST) From: =?utf-8?Q?Gerd_M=C3=B6llmann?= <gerd.moellmann@HIDDEN> To: Stefan Monnier <monnier@HIDDEN> Subject: Re: bug#75886: 31.0.50; read-multiple-choice / read-key and input-decode-map In-Reply-To: <jwvseotomr5.fsf-monnier+emacs@HIDDEN> (Stefan Monnier's message of "Tue, 04 Feb 2025 08:40:19 -0500") References: <m2bjvsssb1.fsf@HIDDEN> <86y0ywph4b.fsf@HIDDEN> <jwvfrkwlyx0.fsf-monnier+emacs@HIDDEN> <m2seovy5ze.fsf@HIDDEN> <jwvldunp9mg.fsf-monnier+emacs@HIDDEN> <m2ed0e7sf1.fsf@HIDDEN> <jwvseotomr5.fsf-monnier+emacs@HIDDEN> Date: Tue, 04 Feb 2025 15:42:04 +0100 Message-ID: <m234gtixfn.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 75886 Cc: 75886 <at> debbugs.gnu.org, Eli Zaretskii <eliz@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: -1.0 (-) Stefan Monnier <monnier@HIDDEN> writes: >>>> Should read-key be changed to signal quit? >>> I think this would break the use of `C-g` to exit from the minibuffer. >> Too bad :-(. > > Of course, there's probably some way to fix the breakage, but basically, > it's a non-trivial change messing with a "delicate" issue (meaning one > where we currently have an undocumented balance of behaviors accumulated > over the years, and we're not even aware of it). Yeah :-/. > >> Do you mind if I replace read-event with read-key in >> read-multiple-choice? > > Not at all! Now done and closing in a minute. >> Maybe it sticks if I put a prominent comments why. > > I suggest you add a test for it as well (ideally in a separate commit so > `git revert` won't remove the test). Slick idea, but I "trust" people to not want to drive me mad :-).
bug-gnu-emacs@HIDDEN:bug#75886; Package emacs.
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From: Stefan Monnier <monnier@HIDDEN>
To: Gerd =?windows-1252?Q?M=F6llmann?= <gerd.moellmann@HIDDEN>
Subject: Re: bug#75886: 31.0.50; read-multiple-choice / read-key and
input-decode-map
In-Reply-To: <m2ed0e7sf1.fsf@HIDDEN> ("Gerd =?windows-1252?Q?M=F6llmann?=
=?windows-1252?Q?=22's?= message of "Mon, 03
Feb 2025 20:13:38 +0100")
Message-ID: <jwvseotomr5.fsf-monnier+emacs@HIDDEN>
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Date: Tue, 04 Feb 2025 08:40:19 -0500
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>>> Should read-key be changed to signal quit?
>> I think this would break the use of `C-g` to exit from the minibuffer.
> Too bad :-(.
Of course, there's probably some way to fix the breakage, but basically,
it's a non-trivial change messing with a "delicate" issue (meaning one
where we currently have an undocumented balance of behaviors accumulated
over the years, and we're not even aware of it).
> Do you mind if I replace read-event with read-key in
> read-multiple-choice?
Not at all!
> Maybe it sticks if I put a prominent comments why.
I suggest you add a test for it as well (ideally in a separate commit so
`git revert` won't remove the test).
Stefan
bug-gnu-emacs@HIDDEN:bug#75886; Package emacs.
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[2003:e0:b728:5e00:7cab:c714:8d4e:f104]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ab6e47f18e8sm796402066b.76.2025.02.03.11.13.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Feb 2025 11:13:39 -0800 (PST) From: =?utf-8?Q?Gerd_M=C3=B6llmann?= <gerd.moellmann@HIDDEN> To: Stefan Monnier <monnier@HIDDEN> Subject: Re: bug#75886: 31.0.50; read-multiple-choice / read-key and input-decode-map In-Reply-To: <jwvldunp9mg.fsf-monnier+emacs@HIDDEN> (Stefan Monnier's message of "Mon, 03 Feb 2025 06:13:14 -0500") References: <m2bjvsssb1.fsf@HIDDEN> <86y0ywph4b.fsf@HIDDEN> <jwvfrkwlyx0.fsf-monnier+emacs@HIDDEN> <m2seovy5ze.fsf@HIDDEN> <jwvldunp9mg.fsf-monnier+emacs@HIDDEN> Date: Mon, 03 Feb 2025 20:13:38 +0100 Message-ID: <m2ed0e7sf1.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 75886 Cc: 75886 <at> debbugs.gnu.org, Eli Zaretskii <eliz@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: -1.0 (-) Stefan Monnier <monnier@HIDDEN> writes: >>>> This is a dark corner in Emacs, so I'm adding Stefan to the discussion >>>> in the hope that he might have comments and ideas to suggest. >>> Indeed `C-g` is handled (read: hard coded) at a very low-level. >> In light of input-decode-map, it seems to me that using read-event is >> always wrong. Should read-event be deprecated, maybe? > > I introduced `read-key` in the hope to replace `read-char` and > `read-event`. But so far it's been hard to switch existing code (some > of those switches have been reverted, for example (and often without > understanding the root of the problem)). > >> Should read-key be changed to signal quit? > > I think this would break the use of `C-g` to exit from the minibuffer. Too bad :-(. Do you mind if I replace read-event with read-key in read-multiple-choice? Maybe it sicks if I put a prominent comments why.
bug-gnu-emacs@HIDDEN:bug#75886; Package emacs.
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From: Stefan Monnier <monnier@HIDDEN>
To: Gerd =?windows-1252?Q?M=F6llmann?= <gerd.moellmann@HIDDEN>
Subject: Re: bug#75886: 31.0.50; read-multiple-choice / read-key and
input-decode-map
In-Reply-To: <m2seovy5ze.fsf@HIDDEN> ("Gerd =?windows-1252?Q?M=F6llmann?=
=?windows-1252?Q?=22's?= message of "Mon, 03
Feb 2025 06:03:49 +0100")
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<jwvfrkwlyx0.fsf-monnier+emacs@HIDDEN> <m2seovy5ze.fsf@HIDDEN>
Date: Mon, 03 Feb 2025 06:13:14 -0500
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>>> This is a dark corner in Emacs, so I'm adding Stefan to the discussion
>>> in the hope that he might have comments and ideas to suggest.
>> Indeed `C-g` is handled (read: hard coded) at a very low-level.
> In light of input-decode-map, it seems to me that using read-event is
> always wrong. Should read-event be deprecated, maybe?
I introduced `read-key` in the hope to replace `read-char` and
`read-event`. But so far it's been hard to switch existing code (some
of those switches have been reverted, for example (and often without
understanding the root of the problem)).
> Should read-key be changed to signal quit?
I think this would break the use of `C-g` to exit from the minibuffer.
Stefan
bug-gnu-emacs@HIDDEN:bug#75886; Package emacs.
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[2003:e0:b728:5e00:7cab:c714:8d4e:f104]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ab6e47a7dcfsm691831266b.17.2025.02.02.21.03.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 02 Feb 2025 21:03:50 -0800 (PST) From: =?utf-8?Q?Gerd_M=C3=B6llmann?= <gerd.moellmann@HIDDEN> To: Stefan Monnier <monnier@HIDDEN> Subject: Re: bug#75886: 31.0.50; read-multiple-choice / read-key and input-decode-map In-Reply-To: <jwvfrkwlyx0.fsf-monnier+emacs@HIDDEN> (Stefan Monnier's message of "Sun, 02 Feb 2025 18:25:50 -0500") References: <m2bjvsssb1.fsf@HIDDEN> <86y0ywph4b.fsf@HIDDEN> <jwvfrkwlyx0.fsf-monnier+emacs@HIDDEN> Date: Mon, 03 Feb 2025 06:03:49 +0100 Message-ID: <m2seovy5ze.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 75886 Cc: 75886 <at> debbugs.gnu.org, Eli Zaretskii <eliz@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: -1.0 (-) Stefan Monnier <monnier@HIDDEN> writes: > >>> Without input-decode-map for C-g. >>> >>> #+begin_src emacs-lisp >>> (read-key) ;; press C-g >>> => Quit >>> #+end_src > > That's not what I see here. I get 7 (aka `C-g`) in an `emacs -Q`. Right, sorry. I corrected that else-mail. > >> This is a dark corner in Emacs, so I'm adding Stefan to the discussion >> in the hope that he might have comments and ideas to suggest. > > Indeed `C-g` is handled (read: hard coded) at a very low-level. In light of input-decode-map, it seems to me that using read-event is always wrong. Should read-event be deprecated, maybe? Should read-key be changed to signal quit? I find it a bit strange that one can write Lisp that one cannot C-g out.
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From: Stefan Monnier <monnier@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#75886: 31.0.50; read-multiple-choice / read-key and
input-decode-map
In-Reply-To: <86y0ywph4b.fsf@HIDDEN> (Eli Zaretskii's message of "Mon, 27 Jan
2025 14:37:40 +0200")
Message-ID: <jwvfrkwlyx0.fsf-monnier+emacs@HIDDEN>
References: <m2bjvsssb1.fsf@HIDDEN> <86y0ywph4b.fsf@HIDDEN>
Date: Sun, 02 Feb 2025 18:25:50 -0500
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>> I am running emacs -nw on a terminal supporting the Kitty Keyboard
>> Protocol, and I am using the kkp package from MELPA to make use of the
>> additional keys KKP makes possible to use.
>>
>> Must know:
>>
>> 1. Kkp works by adding entries to input-decode-map, among them a binding
>> for C-g, which arrives from the terminal as an escape sequence which
>> input-decode-map maps to ^G.
>>
>> 2. read-event does not consult input-decode-map:
>>
>> #+begin_src eemacs-lisp
>> (read-event) ;; press C-g
>> => 27
>> [103;5u
>> #+end_src
>>
>> 3. read-multiple-choice uses read-event.
>>
>> Bug 1:
>>
>> Modify a buffer and C-x k it. A prompt appears asking what to do. The
>> prompt comes from read-multiple-choice. Press C-g. That results in
>> "invalid choice" because read-multiple-choice gets (part of) the escape
>> sequence the terminal sends from read-event.
`read_char` usually doesn't return `C-g` but signals `quit` instead.
IOW the handling that makes `C-g` abort `C-x k` and friends is done at
a very low-level. IIRC whether it (should) return(s) `C-g` or signal(s)
quit depends on `immediate_quit` which is not reflected in ELisp.
>> Without input-decode-map for C-g.
>>
>> #+begin_src emacs-lisp
>> (read-key) ;; press C-g
>> => Quit
>> #+end_src
That's not what I see here. I get 7 (aka `C-g`) in an `emacs -Q`.
> This is a dark corner in Emacs, so I'm adding Stefan to the discussion
> in the hope that he might have comments and ideas to suggest.
Indeed `C-g` is handled (read: hard coded) at a very low-level.
Stefan
bug-gnu-emacs@HIDDEN:bug#75886; Package emacs.
Full text available.Received: (at 75886) by debbugs.gnu.org; 27 Jan 2025 12:38:08 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Jan 27 07:38:08 2025 Received: from localhost ([127.0.0.1]:59790 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tcONU-0005pi-33 for submit <at> debbugs.gnu.org; Mon, 27 Jan 2025 07:38:08 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:56192) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1tcONR-0005p5-TO for 75886 <at> debbugs.gnu.org; Mon, 27 Jan 2025 07:38:06 -0500 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 1tcONL-0005TN-Ld; Mon, 27 Jan 2025 07:37:59 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=Ziril0lBSUf/C47aJcvlTUmAP7HTqHJooQBhXIhjmbU=; b=iKo7CjGA7Yxt3Id0juxP ZKHX7ifvjp1o4fgGWya5NUHg2tBMXMgGtifMELyufXV/AJC0av+R7bEgSantnFp3aV2I7RAUX3fU6 yGSw1zT44+R6uJkkvL+/iE6B3r87YFoJ0Y9Gx6olaCoO70noyznSi+fJ3HXZv2kq8rOGP+vbGrN93 yqD+iAf7RxZYEN55ihHDFYcmh8wMnUMDMFMQBuyABrDhJwaxsnIw3lE3KAuDpmNl8Hmy0ILnJti8m pZiMP/4DEFs+Xk22JbKSDgRhBjlwh+zxsFCf1QvPIH6XwCo54/IIjNV/ElFsBJoUaI3LtNX0/V9yt ySw+/VMvPVjKRg==; Date: Mon, 27 Jan 2025 14:37:40 +0200 Message-Id: <86y0ywph4b.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Gerd =?iso-8859-1?Q?M=F6llmann?= <gerd.moellmann@HIDDEN>, Stefan Monnier <monnier@HIDDEN> In-Reply-To: <m2bjvsssb1.fsf@HIDDEN> (message from Gerd =?iso-8859-1?Q?M=F6llmann?= on Mon, 27 Jan 2025 07:07:46 +0100) Subject: Re: bug#75886: 31.0.50; read-multiple-choice / read-key and input-decode-map References: <m2bjvsssb1.fsf@HIDDEN> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 75886 Cc: 75886 <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: -3.3 (---) > From: Gerd Möllmann <gerd.moellmann@HIDDEN> > Date: Mon, 27 Jan 2025 07:07:46 +0100 > > I am running emacs -nw on a terminal supporting the Kitty Keyboard > Protocol, and I am using the kkp package from MELPA to make use of the > additional keys KKP makes possible to use. > > Must know: > > 1. Kkp works by adding entries to input-decode-map, among them a binding > for C-g, which arrives from the terminal as an escape sequence which > input-decode-map maps to ^G. > > 2. read-event does not consult input-decode-map: > > #+begin_src eemacs-lisp > (read-event) ;; press C-g > => 27 > [103;5u > #+end_src > > 3. read-multiple-choice uses read-event. > > Bug 1: > > Modify a buffer and C-x k it. A prompt appears asking what to do. The > prompt comes from read-multiple-choice. Press C-g. That results in > "invalid choice" because read-multiple-choice gets (part of) the escape > sequence the terminal sends from read-event. > > Bug 2: > > I would have thought that replacing read-event with read-key in > reac-multiple-choice would have solved this, because read-key consults > input-decode-map. But that is not the case because read-key behaves > differently if input-decode-map has an entry for C-g or not. > > Without input-decode-map for C-g. > > #+begin_src emacs-lisp > (read-key) ;; press C-g > => Quit > #+end_src > > With input-decode-map setting for C-g: > > #+begin_src emacs-lisp > (read-key) ;; press C-g > => 7 > #+end_src > > Sorry for lumping these two bugs together, but I think it's easier to > understand this way. This is a dark corner in Emacs, so I'm adding Stefan to the discussion in the hope that he might have comments and ideas to suggest. Thanks.
bug-gnu-emacs@HIDDEN:bug#75886; Package emacs.
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From: =?utf-8?Q?Gerd_M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
To: 75886 <at> debbugs.gnu.org
Subject: Re: bug#75886: 31.0.50; read-multiple-choice / read-key and
input-decode-map
In-Reply-To: <m24j1kd9p0.fsf@HIDDEN> ("Gerd =?utf-8?Q?M=C3=B6llmann=22'?=
=?utf-8?Q?s?= message of "Mon, 27 Jan 2025 07:58:51 +0100")
References: <m2bjvsssb1.fsf@HIDDEN> <m24j1kd9p0.fsf@HIDDEN>
Date: Mon, 27 Jan 2025 09:03:59 +0100
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--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Gerd M=C3=B6llmann <gerd.moellmann@HIDDEN> writes:
> Gerd M=C3=B6llmann <gerd.moellmann@HIDDEN> writes:
>
>> I would have thought that replacing read-event with read-key in
>> reac-multiple-choice would have solved this, because read-key consults
>> input-decode-map. But that is not the case because read-key behaves
>> differently if input-decode-map has an entry for C-g or not.
>>
>> Without input-decode-map for C-g.
>>
>> #+begin_src emacs-lisp
>> (read-key) ;; press C-g
>> =3D> Quit
>> #+end_src
>>
>>
>> With input-decode-map setting for C-g:
>>
>> #+begin_src emacs-lisp
>> (read-key) ;; press C-g
>> =3D> 7
>> #+end_src
>>
>> Sorry for lumping these two bugs together, but I think it's easier to
>> understand this way.
>
> I have to correct that, I confused read-event and read-key.
>
> read-key never quits, it always returns ^G, input-decode-map or not
>
> #+begin_src emacs-lisp
> (read-key) ;; press C-g
> =3D> 7
> #+end_src
>
>
> read-event quits if not input-decode-map
>
> #+begin_src emacs-lisp
> (read-event) ;; press C-g
> =3D> Quit
> #+end_src
The attached patch fixes things for me. It changes only
read-multiple-choice because read-key not quitting on C-g seems to have
been that way already in Emacs 30.
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment;
filename=0001-Use-read-key-in-read-multiple-choice-bug-75886.patch
From 0dbe8060b375e317a0e2709141cda7ff6ea03a76 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gerd=20M=C3=B6llmann?= <gerd@HIDDEN>
Date: Mon, 27 Jan 2025 08:58:30 +0100
Subject: [PATCH] Use read-key in read-multiple-choice (bug#75886)
* lisp/emacs-lisp/rmc.el (read-multiple-choice--short-answers):
Use read-key instead of read-event because read-event doesn't
use input-decode-map.
---
lisp/emacs-lisp/rmc.el | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/lisp/emacs-lisp/rmc.el b/lisp/emacs-lisp/rmc.el
index ad3c86cfd00..63f97fb006e 100644
--- a/lisp/emacs-lisp/rmc.el
+++ b/lisp/emacs-lisp/rmc.el
@@ -219,8 +219,11 @@ read-multiple-choice--short-answers
(car elem)))
prompt-choices)))
(condition-case nil
- (let ((cursor-in-echo-area t))
- (read-event))
+ (let ((cursor-in-echo-area t)
+ (key (read-key)))
+ (when (eq key ?\C-g)
+ (signal 'quit nil))
+ key)
(error nil))))
(if (memq (car-safe tchar) '(touchscreen-begin
touchscreen-end
--
2.48.1
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#75886; Package emacs.
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From: =?utf-8?Q?Gerd_M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
To: 75886 <at> debbugs.gnu.org
Subject: Re: bug#75886: 31.0.50; read-multiple-choice / read-key and
input-decode-map
In-Reply-To: <m2bjvsssb1.fsf@HIDDEN> ("Gerd =?utf-8?Q?M=C3=B6llmann=22'?=
=?utf-8?Q?s?= message of "Mon, 27 Jan 2025 07:07:46 +0100")
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Date: Mon, 27 Jan 2025 07:58:51 +0100
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Gerd M=C3=B6llmann <gerd.moellmann@HIDDEN> writes:
> I would have thought that replacing read-event with read-key in
> reac-multiple-choice would have solved this, because read-key consults
> input-decode-map. But that is not the case because read-key behaves
> differently if input-decode-map has an entry for C-g or not.
>
> Without input-decode-map for C-g.
>
> #+begin_src emacs-lisp
> (read-key) ;; press C-g
> =3D> Quit
> #+end_src
>
>
> With input-decode-map setting for C-g:
>
> #+begin_src emacs-lisp
> (read-key) ;; press C-g
> =3D> 7
> #+end_src
>
> Sorry for lumping these two bugs together, but I think it's easier to
> understand this way.
I have to correct that, I confused read-event and read-key.
read-key never quits, it always returns ^G, input-decode-map or not
#+begin_src emacs-lisp
(read-key) ;; press C-g
=3D> 7
#+end_src
read-event quits if not input-decode-map
#+begin_src emacs-lisp
(read-event) ;; press C-g
=3D> Quit
#+end_src
bug-gnu-emacs@HIDDEN:bug#75886; Package emacs.
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From: =?utf-8?Q?Gerd_M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
To: bug-gnu-emacs@HIDDEN
Subject: 31.0.50; read-multiple-choice / read-key and input-decode-map
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I am running emacs -nw on a terminal supporting the Kitty Keyboard
Protocol, and I am using the kkp package from MELPA to make use of the
additional keys KKP makes possible to use.
Must know:
1. Kkp works by adding entries to input-decode-map, among them a binding
for C-g, which arrives from the terminal as an escape sequence which
input-decode-map maps to ^G.
2. read-event does not consult input-decode-map:
#+begin_src eemacs-lisp
(read-event) ;; press C-g
=> 27
[103;5u
#+end_src
3. read-multiple-choice uses read-event.
Bug 1:
Modify a buffer and C-x k it. A prompt appears asking what to do. The
prompt comes from read-multiple-choice. Press C-g. That results in
"invalid choice" because read-multiple-choice gets (part of) the escape
sequence the terminal sends from read-event.
Bug 2:
I would have thought that replacing read-event with read-key in
reac-multiple-choice would have solved this, because read-key consults
input-decode-map. But that is not the case because read-key behaves
differently if input-decode-map has an entry for C-g or not.
Without input-decode-map for C-g.
#+begin_src emacs-lisp
(read-key) ;; press C-g
=> Quit
#+end_src
With input-decode-map setting for C-g:
#+begin_src emacs-lisp
(read-key) ;; press C-g
=> 7
#+end_src
Sorry for lumping these two bugs together, but I think it's easier to
understand this way.
Gerd Möllmann <gerd.moellmann@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#75886; Package emacs.
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