Re: [idn] opting out of SC/TC equivalence

[Patrik Fältström <paf@cisco.com>]

--On 2001-08-30 08.41 +0200 Harald Tveit Alvestrand <harald@alvestrand.no>
wrote:

>>  I hope my explaination can shed a little
>>  light on CNNIC's feeling about TC/SC arguements.  You also
>> can tell me that my input is out of the scope of this group, and
>> I am ready to leave too.
> 
> I think the group will have a better chance of delivering output that is
> useful to both you and me if we declare that the TC/SC issue is not going
> to be solved inside the IDN work.
> 
> I believe this problem is hard enough that it has to be solved at another
> level. Sorry about that.

Just because nameprep and what the IDN group is doing is only mechanical
operations on individual characters in a single character set, my view is
that SC<->TC conversion can only be done in a keyword like system before
IDN is even started to be used.

Reason for this is because of the different kind of equality which James
described about a year ago and also described in this document. Especially
see section 2.4.3 about the need for user interaction.

http://www.basistech.com/articles/C2C.html

So, outside of IDN, but most certainly part of a system which is described
in the individual drafts by Dr. Klensin and Mr. Mealling.

Further, as James pointed out, if a registry want to set a policy on what
subset of the characters which IDN group is allowing is to be allowed
(only), that is perfectly alright, but also not part of what the IDN group
is doing.

    paf