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Re: RFC: Case-insensitive support for XFS

To: "Nicholas Miell" <nmiell@xxxxxxxxxxx>
Subject: Re: RFC: Case-insensitive support for XFS
From: "Barry Naujok" <bnaujok@xxxxxxx>
Date: Mon, 08 Oct 2007 17:00:58 +1000
Cc: "Christoph Hellwig" <hch@xxxxxxxxxxxxx>, "xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, urban@xxxxxxxxxxxxxx
In-reply-to: <1191822288.2694.10.camel@entropy>
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On Mon, 08 Oct 2007 15:44:48 +1000, Nicholas Miell <nmiell@xxxxxxxxxxx> wrote:

You also have to decide whether to screw over people who speak Turkic
languages and expect an 'I' to 'ı' mapping or everybody else who expect
an 'I' to 'i' mapping.

I suspect they would be used to the false case-insensitive match. I
tested it on Windows XP with NTFS: İ (U+0130) did not match I or i
or ı (U+0131). I also tested it with the Turkish language/keyboard set.

Once it's set in a filesystem, the handling of it can't really be
swapped back and forth either, otherwise, you may lose access to
that file.

There is no practical way that I can see of supporting this
fully, even with using the NLS tables. The on-disk hashes have
to remain consistent regardless of what language is specified.

Barry.


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