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From: Max Nikulin <manikulin@gmail.com>
To: emacs-orgmode@gnu.org
Subject: Re: test-org-table/sort-lines: Failing test on macOS
Date: Wed, 12 Oct 2022 23:09:59 +0700	[thread overview]
Message-ID: <ti6oso$qmp$1@ciao.gmane.io> (raw)
In-Reply-To: <m2tu4b5n9n.fsf@me.com>

On 11/10/2022 05:25, Rudolf Adamkovič wrote:
> (string-collate-lessp "a" "b" "C" t) ; t
..
> (string-collate-lessp "a" "b" "C" nil) ; t
..

So basic sanity tests passed.

> (string-collate-lessp "a" "B" "C" nil)  ; => nil
> (string-collate-lessp "a" "B" "POSIX" nil) ; nil

is expected behavior as well. What I do not like is

 > (string-collate-lessp "a" "B" "C" t)  ; => nil
Actually you wrote
> [FYI: If I replace nil with t, the procedure returns nil too.]
 From my point of view it is a reason to file an Emacs bug because I get

     (string-collate-lessp "a" "B" "C" t) ; => t

It seems case folding works strange for comparison because when case is 
the same "a" < "b" as expected:

> (string-collate-lessp "a" "b" "C" t) ; t
> (string-collate-lessp "A" "B" "C" t) ; t
> (string-collate-lessp "a" "b" "C" nil) ; t
> (string-collate-lessp "A" "B" "C" nil) ; t

May it happen that IGNORE-CASE argument is ignored in your case? I 
believe, it is improbable that C locale is not generated, so case fold 
rules are undefined

     locale -a | grep C

Another your strange result is

> $ locale -a | grep en_US
> en_US.US-ASCII
> en_US.UTF-8
..
so en_US locale is defined but collation rules are different from glibc
> printf 'a\nB\n' | LC_COLLATE=en_US.UTF-8 sort
> B
> a

I have no idea if sort and Emacs use the same libc and the same locale 
definitions. I am unaware which way it is organized in MacOS.




  reply	other threads:[~2022-10-12 16:31 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-06 20:15 test-org-table/sort-lines: Failing test on macOS Rudolf Adamkovič
2022-10-07 12:04 ` Max Nikulin
2022-10-08  5:25   ` Ihor Radchenko
2022-10-08 14:27     ` Max Nikulin
2022-10-09  3:59       ` Ihor Radchenko
2022-10-09 15:38         ` Rudolf Adamkovič
2022-10-09 16:53           ` Max Nikulin
2022-10-10 22:25             ` Rudolf Adamkovič
2022-10-12 16:09               ` Max Nikulin [this message]
2022-11-15  4:10                 ` Ihor Radchenko
2022-11-20  4:18                   ` Ihor Radchenko
2022-11-20  8:00                     ` Max Nikulin
2022-11-21  3:15                       ` Ihor Radchenko
2022-11-21 16:48                         ` Max Nikulin
2022-11-22  1:14                           ` Ihor Radchenko
2022-11-22 16:01                             ` Max Nikulin
2022-11-23 10:37                               ` Ihor Radchenko
2022-11-23 15:27                                 ` Max Nikulin
2022-11-23 17:01                                   ` Max Nikulin
2022-11-26  2:05                                   ` Ihor Radchenko
2022-11-29 16:40                                     ` Max Nikulin
2024-04-03 11:40                                       ` [DISCUSSION] Sorting strings in Org mode vs. system locale (was: test-org-table/sort-lines: Failing test on macOS) Ihor Radchenko
2024-05-05 11:59                                         ` Ihor Radchenko
2024-05-07 11:06                                           ` [DISCUSSION] Sorting strings in Org mode vs. system locale Max Nikulin
2024-05-07 13:09                                             ` Ihor Radchenko
2024-05-07 16:47                                               ` Max Nikulin
2024-05-11  9:38                                                 ` Ihor Radchenko

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