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Date: Tue, 05 Sep 2017 14:35:09 +0100
From: Peter Stephenson <p.stephenson@samsung.com>
To: zsh-workers@zsh.org
Subject: Re: Feature request? print -e to eval ?
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	<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