Re: My prod at IDN requirements

["Martin J. Duerst" <duerst@w3.org>]

At 09:34 00/01/04 +0100, Patrik F$BgM(Jtstr$B‹N(J wrote:
> --On 2000-01-04 09.23 +0100, Patrik F$BgM(Jtstr$B‹N(J  wrote:
> 
> > Regarding what Martin wrote, the question whether the server or the user
> > should define equality, I must say that it must be the same.
> 
> Let me immediately correct myself here.
> 
> What I was trying to say is that we have to think about what the server 
> treats as equality. As the example Harald brought up:
> 
> <ASCII C> <039F;GREEK CAPITAL LETTER OMICRON> <ASCII M>
> <ASCII C> <ASCII O> <ASCII M>.
> 
> Are those domainnames equal?
> 
> The server _must_ descide, and depending on this descision, the user might 
> either in his user interface see a difference or not, all depending on the 
> presentation format of the domainname.
> 
> For example, on many terminals and in many fonts, 0 (digit zero) and O 
> (capital o) looks equal, and the same with 1 (digit one) and l (lower case 
> L). Is that a problem in the DNS that a user might see these as equal? No.

Why not? Couldn't somebody create something like WWW.1BM.c0m, and try
to confuse people?


> It is up to the presentation system to see that the user sees a difference 
> based on the rules in the DNS server.

There is no guarantee that at all places where
DNS names are displayed, a font with the relevant distictions is
used. Or is there?


Regards,   Martin.


#-#-#  Martin J. Du"rst, World Wide Web Consortium
#-#-#  mailto:duerst@w3.org   http://www.w3.org