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From: "Lawrence Velázquez" <larryv@zsh.org>
To: "Anthony Heading" <ajrh@ajrh.net>
Cc: zsh-users@zsh.org
Subject: Re: view onto command pipeline?
Date: Wed, 20 Jul 2022 21:35:51 -0400	[thread overview]
Message-ID: <645ba344-9d97-4ddf-82c6-e6338c98da8b@www.fastmail.com> (raw)
In-Reply-To: <da22373c-43d5-44ad-b146-8c09f22c6665@www.fastmail.com>

On Wed, Jul 20, 2022, at 8:15 PM, Anthony Heading wrote:
> Agree
> quoting $@ makes sense here since this is a wrapper, but I find more 
> often dropping empty
> arguments is often very helpful after splits and suchlike.
>
> But as to "${opts[@]}"...   Just too ugly to do that all the time, no?  
> Instead, use
> zsh's awesome sticky emulation: 
>
>     emulate zsh -c 'autoload -Uz ~/my-zsh-funcs/*'

Leaving $opts[@] unquoted still elides empty elements in this
context; that behavior is not limited to $@.  (If this is what you
actually want, go for it.  Just don't think that fiddling with
options has an effect.)

> Very helpful for insulating the risks of unexpected option settings, 
> and makes it
> safe to use unquoted variables.   As a rule of thumb, at least :-)

It's better to run ''emulate -L zsh'' inside the function itself
(or localize and [un]set options individually as desired) to achieve
a known state, rather than relying on a specific method of invocation.

-- 
vq


  reply	other threads:[~2022-07-21  1:37 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-16 16:15 Anthony Heading
2022-07-16 21:30 ` Bart Schaefer
2022-07-20 11:23   ` Anthony Heading
2022-07-20 11:37     ` Dominik Vogt
2022-07-20 12:22       ` Vincent Bernat
2022-07-20 12:35         ` Dominik Vogt
2022-07-20 19:07           ` Lawrence Velázquez
2022-07-21  0:15       ` Anthony Heading
2022-07-21  1:35         ` Lawrence Velázquez [this message]
2022-07-21  2:11           ` Anthony Heading
2022-07-21  3:15             ` Lawrence Velázquez
2022-07-21  6:43             ` Dominik Vogt
2022-08-04 21:12             ` Felipe Contreras
2022-07-20 19:27     ` Phil Pennock
2022-07-21  0:18       ` Anthony Heading

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