Bug#1122519: xterm: display corruption with double-width characters
On 2025-12-11 01:53:38 +0100, Vincent Lefevre wrote:
> There is no such issue with rxvt and GNOME Terminal.
No such issue with Sakura either.
With mlterm, there are also display issues with Mutt, but the issue
with the test below is not reproducible.
For xterm, this is a regression: there are no issues at all with
xterm 403-1.
> To reproduce a display issue, open a 80-column xterm, and generate
> output so that the shell prompt is at the very bottom. Then paste
> the following command:
>
> printf "🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝🧝\n"
>
> The last 3 characters of the command (\n") do not appear (see attached
> screenshot 20251211-014531.png). They appear one character at a time
> when I type the left arrow. There is the same issue when I recall this
> command from the history (if the prompt is at the very bottom).
--
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)
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