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From: Roman Perepelitsa <roman.perepelitsa@gmail.com>
To: Felipe Contreras <felipe.contreras@gmail.com>
Cc: zsh-workers@zsh.org, Oliver Kiddle <opk@zsh.org>, dana <dana@dana.is>
Subject: Re: [PATCH] prompt: support generic non-visible regions
Date: Thu, 11 Aug 2022 19:24:47 +0200	[thread overview]
Message-ID: <CAN=4vMqwjOtABPgDsXioP7NBxw=O3RRbDt7ZB7CLHtTR-omvPw@mail.gmail.com> (raw)
In-Reply-To: <CAN=4vMqHNZJ7BvCCNbD7-0nPr1CbN1ecHQVxSsaZQ1Ao13__jg@mail.gmail.com>

On Thu, Aug 11, 2022 at 4:37 PM Roman Perepelitsa
<roman.perepelitsa@gmail.com> wrote:
> I like this patch [...]

I should've said that I like the idea behind it. The patch implements
one part of it. To complete the implementation percent expansion needs
to output \001 and \002.

> No real-world use cases come to mind [...]

Here's one. If this is implemented, it'll be possible to compute the
width of prompt in columns with ${(m)#${(%%)PS1}} (perform prompt
expansion and then ask for width). This is necessary in prompts that
look like this:


The first line spans the whole width of the terminal. One example of
such prompt is `prompt bart` from `promptinit`. This particular prompt
can compute the width of `left` and `righ` by utilizing the knowledge
of their content. If these pieces could be specified by the end-user,
the problem would be more difficult. I've described one (rather
cumbersome) solution here:


  parent reply	other threads:[~2022-08-11 17:30 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-10 11:51 Felipe Contreras
2022-08-10 18:59 ` Mikael Magnusson
2022-08-10 19:56   ` Felipe Contreras
2022-08-11 14:02     ` Mikael Magnusson
2022-08-11 14:26       ` Felipe Contreras
2022-08-11 18:32         ` Mikael Magnusson
2022-08-11 18:47           ` Felipe Contreras
2022-08-11 18:54             ` Mikael Magnusson
2022-08-11 19:46               ` Felipe Contreras
2022-08-11 20:38                 ` Bart Schaefer
2022-08-11 23:22                   ` Felipe Contreras
2022-08-11 14:37 ` Roman Perepelitsa
2022-08-11 15:21   ` Bart Schaefer
2022-08-11 16:20     ` Felipe Contreras
2022-08-11 16:49       ` Bart Schaefer
2022-08-11 18:48         ` Felipe Contreras
2022-08-11 17:24   ` Roman Perepelitsa [this message]
2022-08-11 18:55     ` Roman Perepelitsa
2022-08-11 19:23     ` Felipe Contreras
2022-08-11 19:35       ` Roman Perepelitsa
2022-08-11 19:44         ` Felipe Contreras

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