bug#56337: 28.1; Incorrect output by C-u C-x =

[Eli Zaretskii]

> From: Ikumi Keita <ikumi@ikumi.que.jp>
> Date: Fri, 01 Jul 2022 22:44:49 +0900
> 
> The command `what-cursor-position' reports that SPC has `nobreak-space'
> face, which isn't true.
> 
> [How to reporoduce]
> 1. emacs -Q
> 2. Type SPC C-b C-u C-x =
> 3. In *Help* buffer, there is a line saying
>        hardcoded face: nobreak-space
> 
> I think this is a bug. SPC actually has no particular face;
> `nobreak-space' face has underline (at least on my display), but the SPC
> is displayed without underline.
> 
> Here is the responsible code in descr-text.el:
> ----------------------------------------------------------------------
> (defun describe-char (pos &optional buffer)
> [...]
>                             ((and nobreak-char-display char
>                                   (eq (get-char-code-property char 
> 'general-category) 'Zs))
>                              'nobreak-space)
> ----------------------------------------------------------------------
> This conditional should exclude the case that `char' is ASCII space.

Thanks, fixed for Emacs 28.2.