From: "Дилян Палаузов" <dilyan.palauzov@aegee.org>
To: 66664@debbugs.gnu.org
Subject: bug#66664: On modified lines containing 🌐︎ and Unicode VS15 in text mode emacs does not show the real content of the lines
Date: Sat, 21 Oct 2023 14:07:52 +0200 [thread overview]
Message-ID: <2ae9c4a6f49438103a21ff4144e2e11bdf2f7b2e.camel@aegee.org> (raw)
Hello,
I have a text unix file u.txt where I insert this line:
t.add('🌐︎ ' + 'abcd')
That is a globe U+1F310 followed by Unicode Variation Selector 15 to remove the colour of the globe.
$ hexdump -C u.txt
00000000 74 2e 61 64 64 28 27 f0 9f 8c 90 ef b8 8e 20 27 |t.add('....... '|
00000010 20 2b 20 27 61 62 63 64 27 29 0a | + 'abcd').|
0000001b
I open the file in text mode, emacs-fedora-28.3 -nw, and press the right arrow repeatedly to go over c. Then I press x. emacs shows that c is deleted and on its place appears x. I press Ctrl+L to refresh. Now c appears before x.
I close emacs, repeat the above steps and get consistent results. I try this on a different system with self-compiled emacs 29.1, same results.
The problem report is that when that character sequence is contained in a text file, modifying more complex lines gets practically impossible with emacs, as the latter stops showing the actual text. I have to refresh, close, open emacs several times in order to get modifications correctly on the lines, containing the above sequence. I literally cannot see what I am changing on such lines, as what is displayed is different to what is actually modified.
Kind regards
Dilyan
next reply other threads:[~2023-10-21 12:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-21 12:07 Дилян Палаузов [this message]
2023-10-21 12:44 ` bug#66664: On modified lines containing 🌐︎ and Unicode VS15 in text mode emacs does not show the real content of the lines Eli Zaretskii
2023-10-21 13:12 ` Дилян Палаузов
2023-10-21 13:36 ` Eli Zaretskii
2023-10-21 13:53 ` Eli Zaretskii
[not found] ` <b1fdf4e92c74f8962f37f68ff223c5d45355f69d.camel@aegee.org>
2023-10-21 15:39 ` Eli Zaretskii
2023-11-05 11:55 ` Дилян Палаузов
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