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From: Zang <zealot0630@gmail.com>
To: zsh-workers@zsh.org
Subject: ZLE got wrong prompt line size, resulting redisplay eats lines when called
Date: Mon, 24 Oct 2022 15:27:37 +0800	[thread overview]
Message-ID: <CAOrge3rQo1L3bZU_5VPapJGbm5j85cMeWYhaYomozsr1qGxdMA@mail.gmail.com> (raw)

Step to reproduce:

1. Run zsh in clean mode
```
zsh -d -f -i
```

2. Set PROMPT, fill line with dash, then carriage return, fill line
with dash again
```
PROMPT="${(pl:${COLUMNS}::-:)}$terminfo[cr]\
${(pl:${COLUMNS}::-:)}$terminfo[cr]\

%# "
```

By using this PROMPT, we filled the first line of the PROMPT with
dashes twice, it takes only a single line.
But it seems that ZLE doesn't understand carriage return, it considers
that the PROMPT takes multiple lines.

3. Bind ctrl-X to redisplay
```
bindkey "^X" redisplay
```

4. By pressing ctrl-x, one will experience the bug, that PROMPT is
eating lines from previous command outputs.


             reply	other threads:[~2022-10-24  7:28 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-24  7:27 Zang [this message]
2022-10-24  8:20 ` Mikael Magnusson
2022-10-24  8:38   ` Zang

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