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bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function
From: |
Lars Ingebrigtsen |
Subject: |
bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function |
Date: |
Tue, 28 Jun 2022 17:40:10 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
"Basil L. Contovounesios" <contovob@tcd.ie> writes:
> (let ((plist (list :a t)))
> (setf (plist-get plist :a) nil)
> plist)
> ;; => (:a nil)
>
> (let ((plist (list :a t)))
> (setf (plist-get plist :a #'eq) nil)
> plist)
> ;; error-> wrong-number-of-arguments
>
> Do we want the expander in gv.el to understand the new argument?
Yup.
> There's also the question of map.el. Custom predicates are deprecated
> there, since they rely on knowing the underlying map type. Do we want
> plist operations to understand custom predicates regardless?
Using the map functions for plists doesn't really work, so I don't think
it matters much. That is, if you end up with a nil MAP after doing some
deletes, you suddenly can't put anything into the map.
I think expanding map.el to try to handle plists was a mistake -- it's a
fun hack, but can't be used meaningfully in practice.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
- bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function, (continued)
- bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function, Drew Adams, 2022/06/27
- bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function, Drew Adams, 2022/06/27
- bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function, Lars Ingebrigtsen, 2022/06/27
- bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function, Drew Adams, 2022/06/27
- bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function, Drew Adams, 2022/06/27
- bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function, Stefan Monnier, 2022/06/27
- bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function, Drew Adams, 2022/06/27
- bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function, Mattias EngdegÄrd, 2022/06/27
- bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function, Lars Ingebrigtsen, 2022/06/27
- bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function, Basil L. Contovounesios, 2022/06/28
- bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function,
Lars Ingebrigtsen <=
- bug#47425: 26.3; `plist-get', `plist-put' and proposed TEST function, Richard Stallman, 2022/06/28
- bug#47425: 26.3; `plist-get', `plist-put' and proposed TEST function, Drew Adams, 2022/06/29
- bug#47425: 26.3; `plist-get', `plist-put' and proposed TEST function, Richard Stallman, 2022/06/29
- bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function, Drew Adams, 2022/06/27