From: "Daniel Shahaf" <d.s@daniel.shahaf.name>
To: "Đoàn Trần Công Danh" <congdanhqx@gmail.com>,
"Zach Riggle" <zachriggle@gmail.com>
Cc: "Zsh Users" <zsh-users@zsh.org>
Subject: Re: Overriding "builtin"
Date: Fri, 12 Aug 2022 07:12:56 +0000 [thread overview]
Message-ID: <64b57144-d4af-4708-983b-0bd202557bbd@www.fastmail.com> (raw)
In-Reply-To: <YvW5xVGPG4Y4OLGk@danh.dev>
Đoàn Trần Công Danh wrote on Fri, 12 Aug 2022 02:24 +00:00:
> On 2022-08-11 20:18:49-0500, Zach Riggle <zachriggle@gmail.com> wrote:
>> I recently learned that 'builtin' can be overridden with a function. Neat
>> for some silly tricks!
>>
>> However, is there a way to save / restore 'builtin' such that it can be
>> restored?
>>
>> All that I can think of is 'unfunction builtin', but 'unfunction' itself
>> can be overridden with a function.
>
«unset 'functions[unfunction]'», provided (zsh/parameter is available
and) someone hasn't created an unset() function as well.
> You can run original builtin with "builtin".
>
> e.g.:
>
> echo() { printf '++%s\n' "$@"; }
> echo this will run function
> builtin echo this will run builtin
No, he can't, because in his case that'd be a bottomless recursive call
(= an infinite loop).
next prev parent reply other threads:[~2022-08-12 7:15 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-12 1:18 Zach Riggle
2022-08-12 2:24 ` Đoàn Trần Công Danh
2022-08-12 7:12 ` Daniel Shahaf [this message]
2022-08-12 7:57 ` Stephane Chazelas
2022-08-12 18:42 ` Lawrence Velázquez
2022-08-12 19:33 ` Zach Riggle
2022-08-12 20:35 ` Lawrence Velázquez
2022-08-12 20:54 ` Bart Schaefer
2022-08-29 20:42 ` Zach Riggle
2022-08-30 1:31 ` Bart Schaefer
2022-08-30 1:41 ` Bart Schaefer
2022-08-12 13:54 ` Thomas Lauer
2022-08-12 15:41 ` Bart Schaefer
2022-08-12 16:07 ` Thomas Lauer
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