Zsh Mailing List Archive Messages sorted by: Reverse Date, Date, Thread, Author

Re: Why does zsh clear to end-of-screen after prompt?

X-seq: zsh-workers 52160
From: Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>
To: Oliver Kiddle <opk@xxxxxxx>
Cc: zsh-workers@xxxxxxx
Subject: Re: Why does zsh clear to end-of-screen after prompt?
Date: Mon, 18 Sep 2023 16:32:52 -0700
Archived-at: <https://zsh.org/workers/52160>
In-reply-to: <23391-1695078881.417127@hXqK.BiYQ.sk8c>
List-id: <zsh-workers.zsh.org>
References: <ZOkGi5f6hPuk_1-b@louder-room.local> <CAH+w=7ZQaJgvk=wLX5mVEC4XR3AP1kxZU+t6O88PZFAZ6p6w9Q@mail.gmail.com> <ZOlOaISfwY6RFrfH@louder-room.local> <CAH+w=7ba2eATAi3enewDJfwr5NVo0PPb0EtD8b_DKzeFFxXa4g@mail.gmail.com> <23391-1695078881.417127@hXqK.BiYQ.sk8c>

On Mon, Sep 18, 2023 at 4:14 PM Oliver Kiddle <opk@xxxxxxx> wrote:
>
> [ moved to -workers ]
> On 9 Sep, Bart Schaefer wrote:
> >
> > no_clr_eos () {
> >   emulate -L zsh
> >   if [[ $1 == cd ]]
> >   then
> >     REPLY=""
> >   elif [[ -n $2 ]]
> >   then
> >     REPLY=$(echotc "$@")
> >   else
> >     REPLY=$termcap[$1]
> >   fi
> > }
>
> The last 6 lines just restore what would be the default behaviour,
> right?

That is correct.  Although if I were writing it for the current dev
revision, I'd probably just use

  else REPLY=${ echotc "$@" }

since there'd be no subshell.

> Wouldn't it perhaps be helpful if there was an explicit way to fallback
> to the default such as by returning an error status.

Yes.  Or even just by "unset REPLY".

> The feature is
> mostly only used by the test suite to my knowledge.

It's used in X04zlehighlight.  I think there was a proposal to use it
in another test as well, but that never got done.

References:
- Re: Why does zsh clear to end-of-screen after prompt?
  - From: Oliver Kiddle

Messages sorted by: Reverse Date, Date, Thread, Author