From: Stefan Kangas <stefankangas@gmail.com>
To: Adam Porter <adam@alphapapa.net>, Eli Zaretskii <eliz@gnu.org>
Cc: devel@hugot.nl, Emacs-devel@gnu.org
Subject: Re: Add seq-shuffle
Date: Sun, 15 Sep 2024 04:58:39 -0700 [thread overview]
Message-ID: <CADwFkmk9_STFNUmDrSfN_4amzc-0F1x8ngxpHQXzEjkc6730eQ@mail.gmail.com> (raw)
In-Reply-To: <6c627288-4531-49a5-9593-c4f35ccb8b04@alphapapa.net>
Adam Porter <adam@alphapapa.net> writes:
> I think it should be filled because it's not an uncommon thing to want
> to do (e.g. it's needed in Listen.el and Elfeed), and it's not obvious
> how to do it from scratch, especially in a performant way. A "naive"
> implementation, without regard for performance, can perform quite poorly.
>
> That there are different sequence types, each with their own
> characteristics, further complicates the matter. For newer Elisp
> programmers, who may be unfamiliar with the various types and
> performance issues in Elisp, having a built-in function to do it
> correctly and quickly would be helpful.
>
> As it is, we have had various implementations in various third-party
> libraries for years, each with the same purpose but doing it slightly
> differently. As an example from other languages, Python provides the
> random.shuffle function for sequences. It would seem natural for
> Emacs's seq library to provide a similar function.
>
> It's not a big deal, but if I had a vote, it would be to include such a
> function in seq.el.
Makes sense to me, FWIW.
I have had slow and naive implementations of it in my init file at
various times myself.
next prev parent reply other threads:[~2024-09-15 11:58 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-14 7:48 Add seq-shuffle Hugo Thunnissen
2024-09-14 8:42 ` Philip Kaludercic
2024-09-16 5:08 ` Emanuel Berg
2024-09-16 19:17 ` Adam Porter
2024-09-17 4:09 ` Emanuel Berg
2024-09-17 18:37 ` Philip Kaludercic
2024-09-17 22:26 ` Adam Porter
2024-09-18 1:27 ` Emanuel Berg
2024-09-17 18:53 ` Yuri Khan
2024-09-15 1:44 ` Adam Porter
2024-09-15 6:27 ` Eli Zaretskii
2024-09-15 6:45 ` Adam Porter
2024-09-15 11:58 ` Stefan Kangas [this message]
2024-09-15 7:48 ` Hugo Thunnissen
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