From: Sam Steingold <sds@gnu.org>
To: emacs-devel@gnu.org, mattiase@acm.org
Subject: Re: lexicographic list comparison
Date: Mon, 12 Sep 2022 14:35:00 -0400 [thread overview]
Message-ID: <lzo7vkmoff.fsf@3c22fb11fdab.ant.amazon.com> (raw)
In-Reply-To: <CB0E511A-0746-42C3-A5BB-74CFFD33418C@acm.org> (mattiase@acm.org's message of "Mon, 12 Sep 2022 19:53:42 +0200")
> * <znggvnfr@npz.bet> [2022-09-12 19:53:42 +0200]:
>
> 12 sep. 2022 kl. 16.45 skrev Sam Steingold <sds@gnu.org>:
>
>> okay, so, I suppose, you find the `lexicographic-compare-lists' from TS
>> useful, right?
>
> (What is TS in this context?)
TS=topic start (the initial message in the thread)
> I usually just copy-paste code from an older project of mine (who
> doesn't?) because that way I know that it works, how it works, what
> its performance is like, etc.
I abhor code copying.
If I find that I reuse a function, I put it into a library.
>> I certainly have no intention of comparing strings with numbers &c.
>> My question was about a list of _homogeneous_ lists, and comparing to,
>> say, lists of numbers, is done lexicographically based on number
>> comparison.
>
> We could certainly add comparison functions for lists, then ones for
> arrays,
nah, all sequences are compared the same way.
> then for hash tables, and so on.
> Or just write one that works for all built-in types and impose an
> ordering between objects of distinct types. It would be more useful
> (if harder to write).
I seriously doubt this could be useful.
--
Sam Steingold (https://aphar.dreamwidth.org/) on darwin Ns 10.3.2113
https://lastingimpactpsychology.com https://steingoldpsychology.com
https://iris.org.il https://ij.org/ https://jij.org https://camera.org
Calculus has its limits.
prev parent reply other threads:[~2022-09-12 18:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-09 19:27 lexicographic list comparison Sam Steingold
2022-09-10 9:07 ` Mattias Engdegård
2022-09-10 9:22 ` Emanuel Berg
2022-09-10 9:26 ` tomas
2022-09-12 14:45 ` Sam Steingold
2022-09-12 17:53 ` mattiase
2022-09-12 18:31 ` Stefan Monnier
2022-09-12 18:41 ` Sam Steingold
2022-09-12 19:32 ` Stefan Monnier
2022-09-12 18:35 ` Sam Steingold [this message]
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