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From: Bart Schaefer <schaefer@brasslantern.com>
To: Mikael Magnusson <mikachu@gmail.com>
Cc: Oliver Kiddle <opk@zsh.org>, Zsh workers <zsh-workers@zsh.org>
Subject: Re: PATCH: pcre callouts
Date: Tue, 31 Oct 2023 08:57:08 -0700	[thread overview]
Message-ID: <CAH+w=7bw6wbP5bq8ojGsJSfCiJqqkSfRtM+bYGS57HwR+r--3Q@mail.gmail.com> (raw)
In-Reply-To: <CAHYJk3SQ5Pt1HR2q75RTPg80iZjz5i5D=thgrcUJ=-C46s9q6Q@mail.gmail.com>

On Tue, Oct 31, 2023 at 6:31 AM Mikael Magnusson <mikachu@gmail.com> wrote:
>
> On 10/31/23, Bart Schaefer <schaefer@brasslantern.com> wrote:
> >
> > It occurs to me that if you create a scope, you could also create $_
> > in that scope with PM_HIDE set, and then use $_ directly with no
> > namespace needed.
>
> Wouldn't any code inside need to immediately store the value of $_ in
> another parameter to avoid overwriting it after the first command?

PM_HIDE is "local -h" ... if that's set the global value of $_ will
change after every command but the local scope won't be able to see
it.  Seems to work in a quick function example I tried.


  reply	other threads:[~2023-10-31 15:58 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-31  0:04 Oliver Kiddle
2023-10-31  3:26 ` Bart Schaefer
2023-10-31  3:40   ` Bart Schaefer
2023-10-31 13:31     ` Mikael Magnusson
2023-10-31 15:57       ` Bart Schaefer [this message]
2023-11-01  2:04   ` Oliver Kiddle
2023-11-03  3:47     ` Bart Schaefer
2023-11-03  9:50       ` Oliver Kiddle
2023-11-04 20:57         ` Bart Schaefer

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