From: Bart Schaefer <schaefer@brasslantern.com>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: [PATCH] Fix crash on unset-through-nameref
Date: Wed, 6 Mar 2024 11:17:12 -0800 [thread overview]
Message-ID: <CAH+w=7YFADxa=JqYr1i1U=OmxpJsf5fs+uz1BFk1ExLPZc20TA@mail.gmail.com> (raw)
In-Reply-To: <20240306182108.tf7qmtcdiykej4uv@chazelas.org>
On Wed, Mar 6, 2024 at 10:21 AM Stephane Chazelas <stephane@chazelas.org> wrote:
>
> 2024-03-05 15:16:25 -0800, Bart Schaefer:
> > why do you never use -fc to prevent dotfiles from being read?
>
> I hadn't realised -f also skipped ~/.zshenv
>
> Should we also use
>
> #! /bin/zsh -f-
>
> shebangs in scripts?
I usually assume scripts want ~/.zshenv for PATH values etc. As usual
you should do what makes sense for the specific script.
> My point is that if it means the:
>
> assign() {
> typeset -n var=$1
> local value=$2
> var=$value
> }
>
> doesn't work for
>
> assign var value
> or
> assign value something
No, but as of the last patch it works for both of those cases if you use
assign() {
typeset -g $1
typeset -nu var=$1
local value=$2
var=$value
}
You don't have to futz with local parameter names, but you do have to
make sure that the "typeset -g" declaration has a compatible type with
the "var=$value" at the end.
The "typeset -nu" declaration can't know what you're going to assign
later, so it doesn't make sense for it to try to magically perform the
"typeset -g". We don't have a "typeless and waiting for assignment"
parameter type.
next prev parent reply other threads:[~2024-03-06 19:18 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-04 5:37 Bart Schaefer
2024-03-04 6:29 ` Stephane Chazelas
2024-03-04 8:39 ` Bart Schaefer
2024-03-04 19:34 ` Stephane Chazelas
2024-03-04 19:36 ` Stephane Chazelas
2024-03-04 23:50 ` Bart Schaefer
2024-03-05 8:36 ` Stephane Chazelas
2024-03-04 23:18 ` Bart Schaefer
2024-03-05 8:18 ` Stephane Chazelas
2024-03-05 18:42 ` Bart Schaefer
2024-03-05 19:38 ` Stephane Chazelas
2024-03-05 23:16 ` Bart Schaefer
2024-03-06 18:21 ` Stephane Chazelas
2024-03-06 19:17 ` Bart Schaefer [this message]
2024-03-06 19:37 ` Bart Schaefer
2024-03-05 19:48 ` unset, POSIX and the export attribute (Was: [PATCH] Fix crash on unset-through-nameref) Stephane Chazelas
2024-03-05 19:51 ` [PATCH] Fix crash on unset-through-nameref Stephane Chazelas
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