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Date: Tue, 10 Feb 2004 23:17:58 +0000
From: viro@parcelfarce.linux.theplanet.co.uk
To: jw schultz <jw@pegasys.ws>, linux-kernel@vger.kernel.org,
       Matthias Urlichs <smurf@smurf.noris.de>
Subject: Re: UTF-8 in file systems? xfs/extfs/etc.
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References: <20040209115852.GB877@schottelius.org> <pan.2004.02.09.13.36.23.911729@smurf.noris.de> <20040210043212.GF18674@srv-lnx2600.matchmail.com> <20040210230452.GA15892@pegasys.ws>
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On Tue, Feb 10, 2004 at 03:04:52PM -0800, jw schultz wrote:
> I expect UTF-8 to have no multi-byte sequences containing NUL
> but it might be awkward if a multi-byte sequence contained
> 0x2F (/).  I would hope that the committees chose to avoid
> using symbol and punctuation byte-codes for alphanumeric
> sequences.

UTF-8 single-byte sequences are in range 0--127 with obvious mapping to
ASCII.  All bytes in UTF-8 multi-byte sequences are in range 128--255.