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Re: ABNF Re: Troubles with UTF-8

2006-01-06 09:42:25
----- Original Message -----
From: "Misha Wolf" <Misha(_dot_)Wolf(_at_)reuters(_dot_)com>
To: "Tom.Petch" <sisyphus(_at_)dial(_dot_)pipex(_dot_)com>
Cc: "ietf" <ietf(_at_)ietf(_dot_)org>
Sent: Thursday, January 05, 2006 10:53 PM
Subject: RE: ABNF Re: Troubles with UTF-8


See:
   2.2.  ABNF for IRI References and IRIs
in:
   http://www.ietf.org/rfc/rfc3987.txt=20

Misha

Misha

Yes, spot on, thanks for that; I had read the IRI RFC and forgotten it.  There
is a (Standards Track) precedent for specifying UCS in ABNF.

Tom Petch


-----Original Message-----
From: ietf-bounces(_at_)ietf(_dot_)org 
[mailto:ietf-bounces(_at_)ietf(_dot_)org] On Behalf Of
Tom.Petch
Sent: 05 January 2006 20:15
To: James Seng
Cc: ietf
Subject: ABNF Re: Troubles with UTF-8

You say that a Unicode code point can be represented by %xABCD but that
is not
spelt out in ABNF [RFC4234].  And when it refers to 'one printable
character' as
'%x20-7E' I get the impressions that coded character sets like Unicode,
with
more than 256 code points, do not fall within its remit.  I have yet to
see any
use of this in an I-D or RFC. I did post a question about this to this
list on
24th December and the lack of response reinforces my view that this is
uncharted
territory.

Tom Petch




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