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Re: Some issues with the IRI document [bidiIDN-07]

From: Martin Duerst <duerst@w3.org>
Date: Tue, 15 Apr 2003 18:42:14 -0400
Message-Id: <4.2.0.58.J.20030415173003.02cdba60@localhost>
To: Paul Hoffman / IMC <phoffman@imc.org>, public-iri@w3.org

At 08:14 03/04/08 -0700, Paul Hoffman / IMC wrote:

>Technical issues:

>Does the bidi processing in section 4 match what is specified in Nameprep? 
>If not, are there cases where a stand-alone IDN name will be displayed 
>differently than the same name in an IRI? That would be a complete 
>show-stopper, if true.

This is listed as issue
http://www.w3.org/International/iri-edit/Overview.html#bidiIDN-07.


The intend of section 4 was to closely match the design of IDN.
The prohibited bidi control characters are the same as those in
ftp://ftp.rfc-editor.org/in-notes/rfc3454.txt, section 5.8.
The restrictions in section 4.2 are designed to be equivalent to
condition 2) and 3) in section 6 of
ftp://ftp.rfc-editor.org/in-notes/rfc3454.txt. Anyway, with
respect to character restrictions, the restrictions on IDNs
are inherited by IRIs.

What may be missing, in IDN(A) rather than in IRI, is a
description of how a sequence of labels with different
character classes (e.g. latin.ARABIC.latin) is to be displayed,
in particular, what is the base directionality.
ftp://ftp.rfc-editor.org/in-notes/rfc3490.txt lists [UAX9]
as an informative reference, but doesn't cite it.
But maybe I have missed something.


Regards,    Martin.
Received on Tuesday, 15 April 2003 18:42:38 GMT

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