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

From: Visuwesh
Subject: Re: Display of undisplayable characters: \U01F3A8 instead of diamond
Date: Sat, 27 Aug 2022 12:52:19 +0530
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux)

[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.

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