From: Peter Stephenson <p.stephenson@samsung.com>
To: zsh-workers@zsh.org
Subject: Re: Feature request? print -e to eval ?
Date: Tue, 05 Sep 2017 14:35:09 +0100 [thread overview]
Message-ID: <20170905143509.2a3aba30@pwslap01u.europe.root.pri> (raw)
In-Reply-To: <20170905131714.GA17160@aurora-borealis.phear.org>
On Tue, 5 Sep 2017 13:17:14 +0000
Marc Chantreux <khatar@phear.org> wrote:
> i don't know about you but i often eval something i just printed.
> for exemple:
>
> status_as_flag () { eval $( print -P "${1?flag name}=%(?.true.false)" ) }
>
> when it would be nice to write
>
> status_as_flag () { print -eP "${1?flag name}=%(?.true.false)" }
>
> (no more subshell and more readable)
>
> what to you think about the idea ?
Have a look at the (%) flag to ${...}. For example,
${(%):-'blah blah'}
substitues blah blah expanded as a prompt. You can assign that and
print it.
In general, assigning a value then printing it and evaluating
it if you need is probably the way to go.
pws
next prev parent reply other threads:[~2017-09-05 13:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20170905132422epcas3p31c37a80ab0b5e5834813335adc4704e7@epcas3p3.samsung.com>
2017-09-05 13:17 ` Marc Chantreux
2017-09-05 13:35 ` Peter Stephenson [this message]
2017-09-07 8:34 ` Marc Chantreux
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=20170905143509.2a3aba30@pwslap01u.europe.root.pri \
--to=p.stephenson@samsung.com \
--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).