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Re: [idn] case folding and Vietnamese
- To: idn@ops.ietf.org
- Subject: Re: [idn] case folding and Vietnamese
- From: Maurizio Codogno <mau@beatles.cselt.it>
- Date: Mon, 12 Jun 2000 10:22:23 +0200 (MET DST)
- Delivery-date: Mon, 12 Jun 2000 01:22:15 -0700
- Envelope-to: idn-data@psg.com
- Reply-To: Maurizio Codogno <mau@beatles.cselt.it>
> From: RJ Atkinson <rja@inet.org>
> One could imagine a URL:
>
> http://www.d-o^ng.vn
>
> and its capitalised equal:
>
> http://WWW.D-O^NG.VN
>
> It would be broken for users if those two URLs above did not
> go to the same web page. If we only case-map [a-z, A-Z],
> then we would not case-map "d-" with "D-" or case-map "o^"
> with "O^", thus making the 2 fictional URLs above map to
> different web pages.
But the problem is that since the beginning they should have ]
considered d-o^ng and D-O^NG different labels!
We cannot do this for ASCII roman letters [A-Za-z], since we must
retain backward compatibility, but nobody can stop us from saying
"if in a label there is a character outside [0-9A-Za-z-], then
that label is case sensitive".
This formulation has the advantage that .VN and .vn are the same
label :-)
This said, I have no problem in accepting UTR#21, providing that
it is consistent .
ciao, .mau.