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Date: Wed, 13 Oct 2021 10:10:36 +0100 (BST)
From: Peter Stephenson
To: zsh-workers@zsh.org
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Subject: Re: Question on unintuitive behaviour for function execution and
parameter assignment
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> On 13 October 2021 at 09:42 Jett Husher wrote:
> On Tuesday, October 12th, 2021 at 10:31, Peter Stephenson wrote:
> > This is covered by the POSIX_BUILTINS option. Generally, the POSIX_* options are
> >
> > the place to look for this sort of think --- granted that can be a bit of hunt.
>
> I wouldn't even think to look at POSIX_* variables because POSIX-2017
> explicitly tells that it's unspecified "Whether or not the variable assignments persist after
> the completion of the function", so, naturally, I though that this behaviour was compliant.
It's always worth (everyone) bearing in mind that zsh is not a POSIX shell by default.
In fact, it's not *completely* POSIX even in sh emulation, as this has been gradually
retrofitted, and not everything can be done within the current constraints.
cheers
pws