GNU bug report logs - #26396
25.1; char-displayable-p on a latin1 tty

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: user42_kevin <at> yahoo.com.au, 26396 <at> debbugs.gnu.org
Subject: bug#26396: 25.1; char-displayable-p on a latin1 tty
Date: Mon, 17 Apr 2017 11:08:09 -0700

On 04/17/2017 01:08 AM, Eli Zaretskii wrote:

> My reading of the code is that at least some of these unsupported
> characters will NOT be displayed as \uNNNNN, but rather as some
> fallback glyph produced by the console itself, which is not what we
> want, I think.
Yes, that's what happens. It's not ideal, and perhaps it could be 
improved. (I hope by someone else....)

There are similar display problems even in unibyte mode on the Linux 
console. Sometimes a character above U+00FF  is displayed as '\uNNNN', 
sometimes as '?', sometimes the same character is displayed in different 
forms depending on what else is in the buffer, and I don't know why. 
(And likewise, I don't want to spend time worrying about this, as the 
1990s are long gone....)

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