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From: Peter Stephenson <p.w.stephenson@ntlworld.com>
To: zsh-users@zsh.org
Subject: Re: protect spaces and/or globs
Date: Wed, 10 Feb 2021 16:29:00 +0000 (GMT)	[thread overview]
Message-ID: <379883051.3731455.1612974540761@mail2.virginmedia.com> (raw)
In-Reply-To: <b7d8846e-6c5e-ed31-852a-23bcb6f670c4@eastlink.ca>

> On 10 February 2021 at 16:19 Ray Andrews <rayandrews@eastlink.ca> wrote:
> On 2021-02-10 7:47 a.m., Peter Stephenson wrote:
> >
> > No eval needed, the arguments are now exactly the correct command arguments.
> >
> If you look at this one case indeed no eval is needed, but in the 
> broader context of the way all
> my functions work, the eval is unavoidable.  Or is it?  Maybe not.

As always, that depends what you're actually doing, which is a superset of
what you're telling us you're doing, but in general it shouldn't be a problem
--- unless you know you need an extra set of expansions, it's possible to
prepare the arguments you need in the array to be executed as a command
line.

What I mean is, the cases where this *wouldn't* work would be like this...

fullargs=(some stuff '$to_be_expanded_later')

So somewhere down the line you're going to assign to to_be_expanded_later,
and you want that to be expanded when you execute the command line.
*Now* you need the extra eval.  But if you're not doing anything like
that, you've just plain old command line arguments and no eval is needed.

pws


  reply	other threads:[~2021-02-10 16:29 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-09 20:42 Ray Andrews
2021-02-09 21:05 ` Lawrence Velázquez
2021-02-09 21:08 ` Peter Stephenson
2021-02-09 23:45   ` Ray Andrews
2021-02-10  0:22     ` Lawrence Velázquez
2021-02-10  0:51       ` Ray Andrews
2021-02-10  1:46         ` Lawrence Velázquez
2021-02-10  2:25           ` Ray Andrews
2021-02-10  2:52             ` Lawrence Velázquez
2021-02-10  1:52         ` Greg Klanderman
2021-02-10  2:29           ` Ray Andrews
2021-02-10 15:18           ` Ray Andrews
2021-02-10 15:47             ` Peter Stephenson
2021-02-10 16:19               ` Ray Andrews
2021-02-10 16:29                 ` Peter Stephenson [this message]
2021-02-10 20:53                   ` Ray Andrews
2021-02-10 22:14                     ` Bart Schaefer
2021-02-11 16:31                       ` Ray Andrews
2021-02-11 17:19                         ` Lawrence Velázquez
2021-02-11 19:48                           ` Ray Andrews
2021-02-10 18:08                 ` Bart Schaefer
2021-02-10 20:56                   ` Ray Andrews
2021-02-10 16:28             ` Lawrence Velázquez

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