GNU bug report logs - #77328
31.0.50; eglot-code-action-indicator containing U+F400

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

From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 31.0.50; eglot-code-action-indicator containing U+F400
Date: Fri, 28 Mar 2025 07:07:08 +0100

In master

eglot.el:
  614 (defcustom eglot-code-action-indicator
  615   (cl-loop for c in '(? ?⚡?✓ ?α ??)
  616            when (char-displayable-p c)
  617            return (make-string 1 c))

The first character checked above is

             position: 28703 of 217477 (13%), column: 23
            character:  (displayed as ) (codepoint 62464, #o172000, #xf400)
              charset: unicode (Unicode (ISO10646))
code point in charset: 0xF400
               syntax: w 	which means: word
             category: L:Strong L2R
             to input: type "C-x 8 RET f400"
          buffer code: #xEF #x90 #x80
            file code: #xEF #x90 #x80 (encoded by coding system utf-8-unix)
              display: terminal code #xEF #x90 #x80

which is a character in a "private use area". I guess that could
indicate that the use of this character is maybe not intentional.

(In my setting, macOS/iTerm2 terminal, JetBrains MONO font, running
emacs -nw, char-displayable-p returns t for #xf400, and it is displayed
as a question mark in a box, which is otherwise used for characters with
no defined meaning.)

Message #8 received at 77328 <at> debbugs.gnu.org (full text, mbox):

From: Robert Pluim <rpluim <at> gmail.com>
To: Gerd Möllmann <gerd.moellmann <at> gmail.com>
Cc: 77328 <at> debbugs.gnu.org,
 João Távora <joaotavora <at> gmail.com>
Subject: Re: bug#77328: 31.0.50; eglot-code-action-indicator containing U+F400
Date: Fri, 28 Mar 2025 11:01:05 +0100

>>>>> On Fri, 28 Mar 2025 07:07:08 +0100, Gerd Möllmann <gerd.moellmann <at> gmail.com> said:

    Gerd> which is a character in a "private use area". I guess that could
    Gerd> indicate that the use of this character is maybe not intentional.

    Gerd> (In my setting, macOS/iTerm2 terminal, JetBrains MONO font, running
    Gerd> emacs -nw, char-displayable-p returns t for #xf400, and it is displayed
    Gerd> as a question mark in a box, which is otherwise used for characters with
    Gerd> no defined meaning.)

I have a similar setup, but use "CaskaydiaMono Nerd Font Mono" for
non-ASCII, and it displays as what looks like a lightbulb. Perhaps we
should use U+1F4A1 ELECTRIC LIGHT BULB instead.

Robert
-- 

Message #11 received at 77328 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Robert Pluim <rpluim <at> gmail.com>, joaotavora <at> gmail.com
Cc: gerd.moellmann <at> gmail.com, 77328 <at> debbugs.gnu.org
Subject: Re: bug#77328: 31.0.50; eglot-code-action-indicator containing U+F400
Date: Fri, 28 Mar 2025 14:19:48 +0300

> Cc: 77328 <at> debbugs.gnu.org,
>  João Távora <joaotavora <at> gmail.com>
> From: Robert Pluim <rpluim <at> gmail.com>
> Date: Fri, 28 Mar 2025 11:01:05 +0100
> 
> >>>>> On Fri, 28 Mar 2025 07:07:08 +0100, Gerd Möllmann <gerd.moellmann <at> gmail.com> said:
> 
>     Gerd> which is a character in a "private use area". I guess that could
>     Gerd> indicate that the use of this character is maybe not intentional.
> 
>     Gerd> (In my setting, macOS/iTerm2 terminal, JetBrains MONO font, running
>     Gerd> emacs -nw, char-displayable-p returns t for #xf400, and it is displayed
>     Gerd> as a question mark in a box, which is otherwise used for characters with
>     Gerd> no defined meaning.)
> 
> I have a similar setup, but use "CaskaydiaMono Nerd Font Mono" for
> non-ASCII, and it displays as what looks like a lightbulb. Perhaps we
> should use U+1F4A1 ELECTRIC LIGHT BULB instead.

João, what is the reason for using a PUA character there?  This was
added recently, so I guess the motivation is still available
somewhere?

Message #14 received at 77328 <at> debbugs.gnu.org (full text, mbox):

From: João Távora <joaotavora <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Gerd Möllmann <gerd.moellmann <at> gmail.com>,
 77328 <at> debbugs.gnu.org, Robert Pluim <rpluim <at> gmail.com>
Subject: Re: bug#77328: 31.0.50; eglot-code-action-indicator containing U+F400
Date: Fri, 28 Mar 2025 13:35:31 +0000

[Message part 1 (text/plain, inline)]

The reason, frankly, is I don't know my PUAs from my UTFs from my SATs. I
just wanted something pretty, so I POOMA this thing, which looked ok on a
couple of setups. If you are knowledgeable about this, feel free to change
and thanks very much in advance.

João Távora

On Fri, Mar 28, 2025, 11:20 Eli Zaretskii <eliz <at> gnu.org> wrote:

> > Cc: 77328 <at> debbugs.gnu.org,
> >  João Távora <joaotavora <at> gmail.com>
> > From: Robert Pluim <rpluim <at> gmail.com>
> > Date: Fri, 28 Mar 2025 11:01:05 +0100
> >
> > >>>>> On Fri, 28 Mar 2025 07:07:08 +0100, Gerd Möllmann <
> gerd.moellmann <at> gmail.com> said:
> >
> >     Gerd> which is a character in a "private use area". I guess that
> could
> >     Gerd> indicate that the use of this character is maybe not
> intentional.
> >
> >     Gerd> (In my setting, macOS/iTerm2 terminal, JetBrains MONO font,
> running
> >     Gerd> emacs -nw, char-displayable-p returns t for #xf400, and it is
> displayed
> >     Gerd> as a question mark in a box, which is otherwise used for
> characters with
> >     Gerd> no defined meaning.)
> >
> > I have a similar setup, but use "CaskaydiaMono Nerd Font Mono" for
> > non-ASCII, and it displays as what looks like a lightbulb. Perhaps we
> > should use U+1F4A1 ELECTRIC LIGHT BULB instead.
>
> João, what is the reason for using a PUA character there?  This was
> added recently, so I guess the motivation is still available
> somewhere?
>

[Message part 2 (text/html, inline)]

Message #17 received at 77328 <at> debbugs.gnu.org (full text, mbox):

From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
To: João Távora <joaotavora <at> gmail.com>
Cc: 77328 <at> debbugs.gnu.org, Eli Zaretskii <eliz <at> gnu.org>,
 Robert Pluim <rpluim <at> gmail.com>
Subject: Re: bug#77328: 31.0.50; eglot-code-action-indicator containing U+F400
Date: Fri, 28 Mar 2025 14:52:53 +0100

João Távora <joaotavora <at> gmail.com> writes:

> The reason, frankly, is I don't know my PUAs from my UTFs from my SATs. I just wanted something pretty,
> so I POOMA this thing, which looked ok on a couple of setups. If you are knowledgeable about this, feel
> free to change and thanks very much in advance.
>
> João Távora
>
> On Fri, Mar 28, 2025, 11:20 Eli Zaretskii <eliz <at> gnu.org> wrote:
>
>  > Cc: 77328 <at> debbugs.gnu.org,
>  >  João Távora <joaotavora <at> gmail.com>
>  > From: Robert Pluim <rpluim <at> gmail.com>
>  > Date: Fri, 28 Mar 2025 11:01:05 +0100
>  > 
>  > >>>>> On Fri, 28 Mar 2025 07:07:08 +0100, Gerd Möllmann <gerd.moellmann <at> gmail.com> said:
>  > 
>  >     Gerd> which is a character in a "private use area". I guess that could
>  >     Gerd> indicate that the use of this character is maybe not intentional.
>  > 
>  >     Gerd> (In my setting, macOS/iTerm2 terminal, JetBrains MONO font, running
>  >     Gerd> emacs -nw, char-displayable-p returns t for #xf400, and it is displayed
>  >     Gerd> as a question mark in a box, which is otherwise used for characters with
>  >     Gerd> no defined meaning.)
>  > 
>  > I have a similar setup, but use "CaskaydiaMono Nerd Font Mono" for
>  > non-ASCII, and it displays as what looks like a lightbulb. Perhaps we
>  > should use U+1F4A1 ELECTRIC LIGHT BULB instead.
>
>  João, what is the reason for using a PUA character there?  This was
>  added recently, so I guess the motivation is still available
>  somewhere?

Pushed a fix to master that uses the light bulb character. That's quite
pretty, indeed :-). And closing.

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