From: Bart Schaefer <schaefer@brasslantern.com>
To: Zsh Users <zsh-users@zsh.org>
Subject: Re: A way to untie -T vars?
Date: Sat, 21 Jan 2023 10:52:14 -0800 [thread overview]
Message-ID: <CAH+w=7a1RHjYSGnY2=dgZn9n1ZgC2PyJQ12imiDU4gLW4q4saA@mail.gmail.com> (raw)
In-Reply-To: <CAH+w=7bL4txwLp4zFPeDvb6fbYfJV6-mT+S4oFnrJ7cXPZr_Xw@mail.gmail.com>
On Sat, Jan 21, 2023 at 9:11 AM Bart Schaefer <schaefer@brasslantern.com> wrote:
>
> % typeset -a FOO=($FOO) foo=($foo)
Speaking of unorthodoxy ...
% typeset -T FOO foo
% typeset foo=bar
typeset: foo: inconsistent type for assignment
% typeset -i foo=1
% typeset -p FOO foo
typeset: no such variable: FOO
typeset -i foo=1
%
So ... with "typeset" I can forcibly convert a tied scalar to an
array, or an array to an integer, but there's no way to convert an
array to an ordinary scalar.
Anyway ...
untie () {
emulate -L zsh
case ${(tP)1} in
(scalar-tied)
local scalar=${(P)1}
unset $1
typeset -g $1=$scalar
;;
(array-tied)
local array=( ${(P)1} )
unset $1
# Need eval here for array assignment, as
# reserved word doesn't work with $1=(...)
eval "typeset -ga $1=( \$array )"
;;
(*) ;;
esac
}
next prev parent reply other threads:[~2023-01-21 18:53 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-21 16:37 Sebastian Gniazdowski
2023-01-21 16:55 ` Bart Schaefer
2023-01-21 17:11 ` Bart Schaefer
2023-01-21 18:52 ` Bart Schaefer [this message]
2023-01-21 19:15 ` Roman Perepelitsa
2023-01-22 9:34 ` Pier Paolo Grassi
2023-01-22 9:58 ` Roman Perepelitsa
2023-01-23 2:14 ` Bart Schaefer
2023-01-23 9:47 ` Roman Perepelitsa
2023-01-23 18:27 ` Bart Schaefer
2023-01-23 18:42 ` Mikael Magnusson
2023-01-23 18:43 ` Mikael Magnusson
2023-01-23 19:12 ` Bart Schaefer
2023-01-24 5:45 ` Bart Schaefer
2023-01-24 9:56 ` Roman Perepelitsa
2023-01-24 16:42 ` Bart Schaefer
2023-01-24 16:45 ` Peter Stephenson
2023-01-24 17:40 ` Bart Schaefer
2023-01-24 17:54 ` Roman Perepelitsa
2023-01-24 22:54 ` Bart Schaefer
2023-01-25 14:41 ` Roman Perepelitsa
2023-01-25 22:39 ` Bart Schaefer
2023-01-25 23:48 ` Bart Schaefer
2023-01-26 2:34 ` Bart Schaefer
2023-01-21 17:15 ` Roman Perepelitsa
2023-01-21 17:23 ` Bart Schaefer
2023-01-21 17:31 ` Bart Schaefer
2023-01-21 17:48 ` Roman Perepelitsa
2023-01-21 17:50 ` Bart Schaefer
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