From: Eli Zaretskii <eliz@gnu.org>
To: sds@gnu.org
Cc: emacs-devel@gnu.org
Subject: Re: case-insensitive string comparison
Date: Mon, 25 Jul 2022 18:58:19 +0300 [thread overview]
Message-ID: <83o7xddw10.fsf@gnu.org> (raw)
In-Reply-To: <lz1qu92rvh.fsf@3c22fb11fdab.ant.amazon.com> (message from Sam Steingold on Mon, 25 Jul 2022 10:23:30 -0400)
> From: Sam Steingold <sds@gnu.org>
> Date: Mon, 25 Jul 2022 10:23:30 -0400
>
> >> Hmm... `string-collate-equalp`?
> >
> > (string-collate-equalp "a" "A" current-locale-environment t)
> > ==> nil
> > current-locale-environment
> > ==> "en_US.UTF-8"
I cannot reproduce this:
(string-collate-equalp "a" "A" current-locale-environment t)
=> t
current-locale-environment
=> "en_US.UTF-8"
What OS is this, and which Emacs version?
> So, how do we do case-insensitive string comparison in Emacs?
If you want locale-specific collation, as Stefan said, above.
> It is okay to add a `string-equal-ignore-case' based on `compare-strings'?
> (even though it does not recognize "SS" and "ß" as equal)
What's wrong with calling compare-strings directly?
> Or should we first implement something like casefold in Python?
> https://docs.python.org/3/library/stdtypes.html#str.casefold
Ha! we already have that:
(get-char-code-property ?ß 'special-uppercase)
=> "SS"
Give us some credit, yes?
next prev parent reply other threads:[~2022-07-25 15:58 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
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 [this message]
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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