GNU bug report logs - #78714
30.1; failure binding keys to certain unicode characters

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Message #35 received at 78714 <at> debbugs.gnu.org (full text, mbox):

From: Robert Pluim <rpluim <at> gmail.com>
To: John Holman <john.g.holman <at> gmail.com>
Cc: 78714 <at> debbugs.gnu.org, Eli Zaretskii <eliz <at> gnu.org>, schwab <at> linux-m68k.org
Subject: Re: bug#78714: 30.1; failure binding keys to certain unicode
 characters
Date: Tue, 10 Jun 2025 09:46:06 +0200

>>>>> On Mon, 9 Jun 2025 22:12:40 +0100, John Holman <john.g.holman <at> gmail.com> said:

    John> Hi Robert
    John> I just tried using key-description, for example

    John> (define-minor-mode math-typing-mode
    John>   "A minor mode for typing maths characters"
    John>   :init-value nil
    John>   :lighter " Math"
    John>   (let ((map (make-sparse-keymap)))
    John>     (if math-typing-mode
    John>      (progn

    John>         (define-key map (kbd "C-3") (key-description "\u00B3"))

    John>         (use-local-map map))
    John>       (use-local-map nil))))

    John> but this produces the same result as

    John> (define-key map (kbd "C-3") "\u00B3")

    John> while

    John> (define-key map (kbd "C-3") [?\u00B3]) or my original lambda works (inserts
    John> the unicode character when you press C-3)

    John> Probably I misunderstand what you are suggesting though?

No, Iʼd forgotten about one of the corner cases of
`key-description'. `key-parse' would work here, but that probably has
other issues, so specifying the vector is your best bet.

Robert
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