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From: Roland Winkler <winkler@gnu.org>
To: emacs-devel@gnu.org
Subject: Re: case-insensitive string comparison
Date: Tue, 19 Jul 2022 21:21:13 -0500	[thread overview]
Message-ID: <87wnc8o76u.fsf@gnu.org> (raw)
In-Reply-To: <lzmtd4u3d9.fsf@3c22fb11fdab.ant.amazon.com> (Sam Steingold's message of "Tue, 19 Jul 2022 18:47:14 -0400")

On Tue, Jul 19 2022, Sam Steingold wrote:
> No, because I need to be able to pass `string-equal-ignore-case' to
> things like `cl-find' as `:test' &c.

That sounds like a rather particular use case that, I believe, should
not motivate the design of what goes into subr.el.

> Also, if you look at fns.c, `string-equal' is basically `memcmp', while
> `compare-strings' is way more complex.

I don't think that's an obstacle for anything.

- The string-delimiting args and underlying machinery of compare-strings
  are something that can be skipped with string-equal.

- On the other hand, string comparison with case-folding is more complex
  than string comparison without case-folding, by its very definition.

> PS. Actually, compare-strings/ignore_case is broken because it does,
> essentially, upcase both arguments, see
> https://stackoverflow.com/q/319426/850781

That's a very different issue.



  reply	other threads:[~2022-07-20  2:21 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-19 17:27 case-insensitive string comparison Sam Steingold
2022-07-19 18:06 ` Mattias Engdegård
2022-07-19 18:56   ` Sam Steingold
2022-07-20  4:39     ` tomas
2022-07-20 11:35       ` Eli Zaretskii
2022-07-20 13:30         ` tomas
2022-07-19 18:16 ` Stefan Kangas
2022-07-19 19:39 ` Roland Winkler
2022-07-19 22:47   ` Sam Steingold
2022-07-20  2:21     ` Roland Winkler [this message]
2022-07-20  3:01     ` Stefan Monnier
2022-07-20 16:22       ` Sam Steingold
2022-07-25 14:23         ` Sam Steingold
2022-07-25 15:58           ` Eli Zaretskii
2022-07-25 19:39             ` Sam Steingold
2022-07-26 13:05               ` Eli Zaretskii
2022-07-26 14:16                 ` Sam Steingold
2022-07-26 15:53                   ` Eli Zaretskii
2022-07-26 16:00                     ` Sam Steingold
2022-07-26 16:16                     ` Lars Ingebrigtsen
2022-07-26 14:43                 ` Robert Pluim
2022-07-25 19:37           ` Bruno Haible
2022-07-26  3:24           ` Richard Stallman
2022-07-26  8:00             ` Helmut Eller
2022-07-26 12:21               ` Eli Zaretskii
2022-07-27  2:58               ` Richard Stallman
2022-07-31  8:24                 ` Eli Zaretskii
2022-07-26 14:28             ` Sam Steingold
2022-07-26 15:42               ` Sam Steingold
2022-07-26 16:10               ` Eli Zaretskii
2022-07-26 18:56                 ` Bruno Haible
2022-07-26 19:30                   ` Eli Zaretskii
2022-07-20 16:24       ` Roland Winkler
2022-07-20 17:06         ` Sam Steingold
2022-07-20 17:16           ` Eli Zaretskii
2022-07-20 17:12         ` Eli Zaretskii
2022-07-20 17:37           ` Roland Winkler
2022-07-20 17:50             ` Eli Zaretskii
2022-07-20 18:10               ` Roland Winkler
2022-07-20 18:16                 ` Eli Zaretskii
2022-07-20 18:18                   ` [External] : " Drew Adams
2022-07-21  6:56                   ` Eli Zaretskii
2022-07-21 14:19                     ` Roland Winkler
2022-07-21 15:53                       ` Eli Zaretskii
2022-07-21 16:35                         ` Roland Winkler

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