From: Felipe Contreras <felipe.contreras@gmail.com>
To: Peter Stephenson <p.w.stephenson@ntlworld.com>
Cc: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: Bug with unset variables
Date: Wed, 11 Nov 2020 12:05:41 -0600 [thread overview]
Message-ID: <CAMP44s3pR9Y7M3vYLCBAS8oRP-qmSi27AQ8+-eMBm1Wd-UL1Lw@mail.gmail.com> (raw)
In-Reply-To: <260487802.1331953.1605114168793@mail2.virginmedia.com>
On Wed, Nov 11, 2020 at 11:02 AM Peter Stephenson
<p.w.stephenson@ntlworld.com> wrote:
>
>
> > On 11 November 2020 at 16:56 Felipe Contreras <felipe.contreras@gmail.com> wrote:
> > If I actually do something on the foo() function:
> >
> > typeset var
> > [[ -n "$1" ]] && var=$1
> > echo "var: '${var-other}'"
> >
> > I would expect two things: 1) var is not set when I exit the function,
> > and 2) var is not set until I specifically set it.
>
> If you want the variable to be regarded as both local in scope and
> unset, you can
>
> typeset var
> unset var
>
> and the scope stays local, so this is safe.
>
> (I thought we already did something like this in emulation but I may
> not be remembering correctly.)
OK. But why isn't zsh doing this by default?
--
Felipe Contreras
prev parent reply other threads:[~2020-11-11 18:06 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-11 15:57 Felipe Contreras
2020-11-11 16:13 ` Roman Perepelitsa
2020-11-11 16:56 ` Felipe Contreras
2020-11-11 17:02 ` Roman Perepelitsa
2020-11-11 18:03 ` Felipe Contreras
2020-11-11 18:16 ` Roman Perepelitsa
2020-11-11 20:42 ` Felipe Contreras
2020-11-12 0:20 ` Mikael Magnusson
2020-11-12 1:10 ` Felipe Contreras
2020-11-12 8:45 ` Roman Perepelitsa
2020-11-12 10:47 ` Peter Stephenson
2020-11-12 18:48 ` Bart Schaefer
2020-11-12 19:49 ` Felipe Contreras
2020-11-12 18:46 ` Felipe Contreras
2020-11-12 19:10 ` Roman Perepelitsa
2020-11-12 21:08 ` Felipe Contreras
2020-11-13 8:51 ` Roman Perepelitsa
2020-11-14 0:52 ` Felipe Contreras
2020-11-14 5:41 ` Roman Perepelitsa
2020-11-16 19:41 ` Felipe Contreras
2020-11-16 20:22 ` Roman Perepelitsa
2020-11-17 20:28 ` Felipe Contreras
2020-11-18 22:45 ` Daniel Shahaf
2020-11-22 1:20 ` Felipe Contreras
2020-11-23 4:00 ` Daniel Shahaf
2020-11-23 6:18 ` Felipe Contreras
2020-11-19 2:59 ` Bart Schaefer
2020-11-22 1:50 ` Felipe Contreras
2020-11-17 20:54 ` Bart Schaefer
2020-11-22 1:49 ` Felipe Contreras
2020-11-23 6:48 ` Bart Schaefer
2020-11-23 7:26 ` Felipe Contreras
2020-11-23 20:26 ` Bart Schaefer
2020-11-23 23:39 ` Felipe Contreras
2020-11-24 0:52 ` Bart Schaefer
2020-11-25 8:46 ` Felipe Contreras
2020-11-27 15:44 ` Daniel Shahaf
2020-11-27 20:49 ` Felipe Contreras
2020-11-27 20:59 ` Daniel Shahaf
2020-11-27 21:33 ` Bart Schaefer
2020-11-27 23:37 ` Daniel Shahaf
2020-11-27 23:45 ` Bart Schaefer
2020-11-28 0:24 ` Bart Schaefer
2020-11-28 7:32 ` Bart Schaefer
2020-11-28 12:05 ` Felipe Contreras
2020-11-12 19:26 ` Bart Schaefer
2020-11-12 21:48 ` Felipe Contreras
2020-11-13 22:17 ` Bart Schaefer
2020-11-14 0:58 ` Felipe Contreras
2020-11-11 18:36 ` Bart Schaefer
2020-11-11 21:08 ` Felipe Contreras
2020-11-11 17:02 ` Peter Stephenson
2020-11-11 18:05 ` Felipe Contreras [this message]
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