GNU bug report logs - #57728
29.0.50; Emacs writes wrong glyph at the bottom-right corner of text terminals

Previous Next

Package: emacs;

Reported by: Akib Azmain Turja <akib <at> disroot.org>

Date: Sun, 11 Sep 2022 10:37:02 UTC

Severity: normal

Found in version 29.0.50

Full log

Message #86 received at 57728 <at> debbugs.gnu.org (full text, mbox):

From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: gregory <at> heytings.org, 57728 <at> debbugs.gnu.org, akib <at> disroot.org
Subject: Re: bug#57728: 29.0.50; Emacs writes wrong glyph at the
 bottom-right corner of text terminals
Date: Mon, 12 Sep 2022 13:59:05 +0200

Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
>> This is because 'write' deliberatly leaves the bottom-right corner alone
>> if the terminal has "auto right margin" (autowrap).
>
> But AFAIU, the bug actually shows that we somehow _do_ write there,
> although the display engine assumes we don't.  Right?

My theory is that no-one but tty_write_glyphs knows that it didn't write
to the bottom-right corner.  At least so far I couldn't find code that
takes this into account.
This bug report was last modified 2 years and 334 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.