GNU bug report logs - #61505
[PATCH] Handle anonymous commands in C-h K

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Package: emacs;

Reported by: Eshel Yaron <me <at> eshelyaron.com>

Date: Tue, 14 Feb 2023 07:40:02 UTC

Severity: wishlist

Tags: patch

Fixed in version 30.1

Done: Stefan Kangas <stefankangas <at> gmail.com>

Bug is archived. No further changes may be made.

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Report forwarded to bug-gnu-emacs <at> gnu.org:
bug#61505; Package emacs. (Tue, 14 Feb 2023 07:40:02 GMT) Full text and rfc822 format available.

Acknowledgement sent to Eshel Yaron <me <at> eshelyaron.com>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs <at> gnu.org. (Tue, 14 Feb 2023 07:40:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Eshel Yaron <me <at> eshelyaron.com>
To: bug-gnu-emacs <at> gnu.org
Subject: [PATCH] Handle anonymous commands in C-h K
Date: Tue, 14 Feb 2023 09:39:00 +0200
[Message part 1 (text/plain, inline)]
Tags: patch

Currently C-h K (Info-goto-emacs-key-command-node) throws an error when
used on anonymous commands, for example:

1. emacs -Q
2. Evaluate this form:
    (keymap-global-set "C-c m"
                       (lambda ()
                         (interactive)
                         (message "foo")))
3. Type C-h K C-c m
4. Get this error:
    Info-goto-emacs-command-node: Wrong type argument: symbolp, (closure (t) nil (interactive) (message "foo"))

This patch makes Info-goto-emacs-key-command-node detect and handle such
cases by printing an informative message instead of calling
Info-goto-emacs-command-node.


In GNU Emacs 30.0.50 (build 6, x86_64-apple-darwin22.2.0, NS
 appkit-2299.30 Version 13.1 (Build 22C65)) of 2023-02-11 built on
 esmac.lan
Repository revision: 838415525bd4e77a79e18af8e4f01ed004196c71
Repository branch: master
Windowing system distributor 'Apple', version 10.3.2299
System Description:  macOS 13.1

Configured using:
 'configure --with-native-compilation --with-json --with-xwidgets
 --with-mailutils --with-imagemagick --without-dbus'

[0001-Handle-anonymous-commands-in-C-h-K.patch (text/patch, attachment)]

Severity set to 'wishlist' from 'normal' Request was from Stefan Kangas <stefankangas <at> gmail.com> to control <at> debbugs.gnu.org. (Mon, 04 Sep 2023 09:02:01 GMT) Full text and rfc822 format available.

Reply sent to Stefan Kangas <stefankangas <at> gmail.com>:
You have taken responsibility. (Wed, 10 Jan 2024 22:52:01 GMT) Full text and rfc822 format available.

Notification sent to Eshel Yaron <me <at> eshelyaron.com>:
bug acknowledged by developer. (Wed, 10 Jan 2024 22:52:01 GMT) Full text and rfc822 format available.

Message #12 received at 61505-done <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefankangas <at> gmail.com>
To: Eshel Yaron <me <at> eshelyaron.com>
Cc: 61505-done <at> debbugs.gnu.org
Subject: Re: bug#61505: [PATCH] Handle anonymous commands in C-h K
Date: Wed, 10 Jan 2024 14:51:31 -0800
Version: 30.1

Eshel Yaron <me <at> eshelyaron.com> writes:

> Currently C-h K (Info-goto-emacs-key-command-node) throws an error when
> used on anonymous commands, for example:
>
> 1. emacs -Q
> 2. Evaluate this form:
>     (keymap-global-set "C-c m"
>                        (lambda ()
>                          (interactive)
>                          (message "foo")))
> 3. Type C-h K C-c m
> 4. Get this error:
>     Info-goto-emacs-command-node: Wrong type argument: symbolp, (closure (t) nil (interactive) (message "foo"))
>
> This patch makes Info-goto-emacs-key-command-node detect and handle such
> cases by printing an informative message instead of calling
> Info-goto-emacs-command-node.

Thanks, makes sense to me, so I installed it on master (9eed00c8e5a).

I changed the message to be slightly more clear in a followup commit to
look like this:

    C-c m invokes an anonymous command defined with ‘lambda’

I also made it use `substitute-command-keys'.




bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Thu, 08 Feb 2024 12:24:05 GMT) Full text and rfc822 format available.

This bug report was last modified 49 days ago.

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