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Re: Display of undisplayable characters: \U01F3A8 instead of diamond

From: Eli Zaretskii
Subject: Re: Display of undisplayable characters: \U01F3A8 instead of diamond
Date: Sat, 27 Aug 2022 12:11:47 +0300

> From: Visuwesh <visuweshm@gmail.com>
> Cc: Emanuel Berg <incal@dataswamp.org>,  emacs-devel@gnu.org
> Date: Sat, 27 Aug 2022 12:52:19 +0530
> [சனி ஆகஸ்ட் 27, 2022] Eli Zaretskii wrote:
> > We are not going back to the situation where we sent to the Linux
> > console character codes for which it couldn't produce valid glyphs.
> > People who suggest sending U+FFFD to the Linux console should first
> > verify whether the console is capable of displaying that character.
> > One way of verifying this is to type
> >
> >    C-x 8 RET fffd RET
> >
> > in an Emacs session which displays on the Linux console, and see if
> > that shows the diamond-like glyph or the \Unnnn thing.  If it's the
> > latter, it means the console doesn't support that character, and we
> > cannot send its code from Emacs.  We should instead send something
> > else (provided that someone submits patches to send that "something").
> It is displayed as a diamond in emacs -Q -nw in a Linux tty here.  I'm
> on Debian GNU/Linux bookworm/sid.

In what Emacs version?

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