* How reliable is %x prompt expansion?
@ 2023-02-13 16:26 Sebastian Gniazdowski
2023-02-13 16:39 ` Roman Perepelitsa
0 siblings, 1 reply; 2+ messages in thread
From: Sebastian Gniazdowski @ 2023-02-13 16:26 UTC (permalink / raw)
To: Zsh Users
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Hi , currently, I'm doing:
0=${${(M)${0::=${(%):-%x}}:#/*}:-$PWD/$0}
on entry to each function or script. It works well, however, I'm planning
to update the plugin standard recommendation for $0 support and I'm
thinking if there are any circumstances where it might fail? $0 is to point
to the script/function source.
Also, I'm looking for a way to disable the promptsubst/print -P for a
single variable, something like `print -P ${(!%)var}`, where !% is to
denote that prompt expansion should not be done.
--
Best regards,
Sebastian Gniazdowski
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: How reliable is %x prompt expansion?
2023-02-13 16:26 How reliable is %x prompt expansion? Sebastian Gniazdowski
@ 2023-02-13 16:39 ` Roman Perepelitsa
0 siblings, 0 replies; 2+ messages in thread
From: Roman Perepelitsa @ 2023-02-13 16:39 UTC (permalink / raw)
To: Sebastian Gniazdowski; +Cc: Zsh Users
On Mon, Feb 13, 2023 at 5:27 PM Sebastian Gniazdowski
<sgniazdowski@gmail.com> wrote:
>
> Hi , currently, I'm doing:
>
> 0=${${(M)${0::=${(%):-%x}}:#/*}:-$PWD/$0}
>
> on entry to each function or script.
FWIW, to get the name of the current file I use $ZSH_SCRIPT in
executable scripts and ${(%):-%x} in sourced files. To get the name of
the current function I use $0 (after `emulate -L zsh` to make sure
posix_argzero is not in effect).
> Also, I'm looking for a way to disable the promptsubst/print -P for
> a single variable, something like `print -P ${(!%)var}`, where !%
> is to denote that prompt expansion should not be done.
I do it like this:
print -P -- ${var//\%/%%}
A more useful example would be:
if [[ -e $file ]]; then
print -Pru2 -- "%F{red}error%f: file already exists: %U${file//\%/%%}%f"
fi
Note ${file//\%/%%}.
Roman.
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2023-02-13 16:26 How reliable is %x prompt expansion? Sebastian Gniazdowski
2023-02-13 16:39 ` Roman Perepelitsa
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