From: Vincent Lefevre <vincent@vinc17.net>
To: zsh-workers@zsh.org
Subject: Re: clear-screen widget and prompt expansion
Date: Tue, 16 Feb 2016 11:01:40 +0100 [thread overview]
Message-ID: <20160216100140.GA27569@cventin.lip.ens-lyon.fr> (raw)
In-Reply-To: <160204073731.ZM25972@torch.brasslantern.com>
On 2016-02-04 07:37:31 -0800, Bart Schaefer wrote:
> On Feb 4, 3:12pm, Vincent Lefevre wrote:
> } Shouldn't the prompt also be re-expanded (like when the screen is
> } resized)? Or is it up to the user to create a new widget for that?
>
> There was a deliberate decision made a long time ago that once ZLE
> is started, the prompt is a relatively static part of the editor.
> Originally this was because prompts are formatted by the shell (even
> if ZLE is disabled) and ZLE was treated like a separate entity.
>
> Window resize is particularly tricky because, depending on the window
> manager/desktop application, SIGWINCH may be sent either only once
> when the user releases the mouse button (or otherwise ends the drag-
> resize operation), or multiple times in very rapid succession for every
> incremental drag motion.
>
> So it's left up to the user to decide how to handle that, typically by
> something like
> TRAPWINCH() { zle && zle reset-prompt }
I meant that prompt is already re-expanded when the terminal is
resized. What I'm saying is that clear-screen is not consistent
with that. For instance, with RPS1="<%*" after "zsh -f", when
resizing the terminal, the time is updated, but with Ctrl-L it
is not. I'm wondering whether such a difference is expected.
Moreover I thought that
zle -A clear-screen real-clear-screen
cls-rp() { zle real-clear-screen; zle reset-prompt }
zle -N clear-screen cls-rp
would do what I expect, but this doesn't work in incremental search
mode (while the prompt is still re-expanded when the terminal is
resized).
--
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 / AriC project (LIP, ENS-Lyon)
next prev parent reply other threads:[~2016-02-16 10:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-04 14:12 Vincent Lefevre
2016-02-04 15:37 ` Bart Schaefer
2016-02-16 10:01 ` Vincent Lefevre [this message]
2016-02-16 18:43 ` Bart Schaefer
2016-02-19 15:16 ` Vincent Lefevre
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160216100140.GA27569@cventin.lip.ens-lyon.fr \
--to=vincent@vinc17.net \
--cc=zsh-workers@zsh.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/zsh/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).