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Date:      Thu, 9 Mar 2017 11:03:27 +0100
From:      Baptiste Daroussin <bapt@freebsd.org>
To:        Matthias Apitz <guru@unixarea.de>, Xin Li <delphij@delphij.net>, "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>, d@delphij.net, theraven@freebsd.org
Subject:   Re: Why en_US.UTF-8 locale consider a < A?
Message-ID:  <20170309100326.h2dwsj43vbmujaeh@ivaldir.net>
In-Reply-To: <20170308155947.GA4129@c720-r292778-amd64>
References:  <062a0098-1975-6d2b-b017-f623e46ca20b@delphij.net> <20170308084047.qc2j3vnrh5hycg32@ivaldir.net> <7ad51573-c575-ad2f-b3bd-b011d15981ed@delphij.net> <20170308155947.GA4129@c720-r292778-amd64>

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[-- Attachment #1 --]
On Wed, Mar 08, 2017 at 04:59:47PM +0100, Matthias Apitz wrote:
> El día Wednesday, March 08, 2017 a las 12:51:11AM -0800, Xin Li escribió:
> 
> > 
> > 
> > On 3/8/17 00:40, Baptiste Daroussin wrote:
> > >> Is this result correct?  It matches some Debian behavior but not macOS
> > >> behavior.
> > > 
> > > Yes the result is correct, macOS does not have unicode collation if you want to
> > > match the macos behaviour you have to set LC_COLLATE=C
> > 
> > Thanks, I also found this https://www.cl.cam.ac.uk/~mgk25/unicode.html
> > just for the record if someone else hits the same issue.
> 
> I recently came across with a related problem and have two questions
> (unresolved until now):
> 
> 1.
> Using sort, reading the man page of it, it should be sufficient to
> set LC_COLLATE correctly. It seems that setting LANG (or unsetting it)
> changes the sort Order, why?

This has been answered by someone else already.
> 
> 2.
> Speaking about German Umlauts, should they be treated as their normal
> letters, i.e. 'ä' is like 'a', as one can read in Wiki, or how they are
> sorted exactly?

I don't know the details for this particular case, but we do take the data from
cldr (http://cldr.unicode.org/), so if you check there you will have your answer

Best regards,
Bapt

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