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From: "Sebastian Reuße" <seb@wirrsal.net>
To: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Cc: emacs-orgmode@gnu.org
Subject: Re: [PATCH] Fix alphabetic sorting for headlines, tags
Date: Mon, 12 Feb 2018 15:54:11 +0100	[thread overview]
Message-ID: <87sha6xnqk.fsf@wirrsal.net> (raw)
In-Reply-To: <87sha6uwxw.fsf@nicolasgoaziou.fr>


Nicolas Goaziou <mail@nicolasgoaziou.fr> writes:

> Sebastian Reuße <seb@wirrsal.net> writes:

>> The test will error out if the data for the chosen locale isn’t
>> actually present on the system. I chose the «en_US» locale in the
>> hopes that this will frequently be installed. I’ll leave it up to you
>> to decide whether that is acceptable.

> I used "C" locale instead. I think it is available on every system. So
> basically, the test checks if we are not using string< for comparison.

It looks like «string-collate-lessp», when used with the POSIX locale,
is equivalent to «string<». The examples I tried out all came up the
same, and [1] (headline «LC_COLLATE Category in the POSIX Locale») says
the POSIX collation ordering is the same as the ASCII codeset. glibc
adheres to this too (cf. /usr/share/i18n/locales/POSIX).

[1] <http://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap07.html#tag_07_03>

In that case the extension to the test case might be better left out.

When I was looking into this yesterday I noticed that glibc ships a
locale definition file that specifies collation according to ISO 14651
(which most language locales derive from), but unfortunately the POSIX
locale doesn’t use that.

Kind regards,
SR

--
Insane cobra split the wood
Trader of the lowland breed
Call a jittney, drive away
In the slipstream we will stay

  reply	other threads:[~2018-02-12 14:54 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-06 10:07 [PATCH] Fix alphabetic sorting for headlines, tags Sebastian Reuße
2018-02-10 13:02 ` Nicolas Goaziou
2018-02-11 11:11   ` Sebastian Reuße
2018-02-11 16:25     ` Nicolas Goaziou
2018-02-12  8:44       ` Sebastian Reuße
2018-02-12 14:03         ` Nicolas Goaziou
2018-02-12 14:54           ` Sebastian Reuße [this message]
2018-02-12 15:47             ` Nicolas Goaziou
2018-02-12  8:46       ` Sebastian Reuße
2018-02-12 13:59         ` Nicolas Goaziou
2018-02-11 11:13   ` Sebastian Reuße
  -- strict thread matches above, loose matches on Subject: below --
2018-02-06  8:57 Sebastian Reuße

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