Re: Capturing STDOUT without subshells or file I/O

[Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>]

On Mon, Sep 17, 2018 at 2:19 PM, dana <dana@xxxxxxx> wrote:
>
> Mikael once showed me this trick:
>
>   print -zf '%.2f' 3.4
>   read -rz var
>   echo $var # 3.40

That's pretty close to exactly what "printf -v" does underneath.  It
just requires that the buffer stack be present, so it means the zle
module has to have been loaded -- but that happens even in
non-interactive shells unless you do something to prevent it, so it
should work almost all the time.