Re: Last Call: UTF-16, an encoding of ISO 10646 to Informational

From: Frank da Cruz (fdc@watsun.cc.columbia.edu)
Date: Sun Aug 15 1999 - 13:23:21 EDT


Michael Everson wrote:

> >UTF-16
> >UTF-16LE
> >UTF-16BE
> >
> >I need to, as area director, to know wether it is wrong or right to do this
> >registration.
>
> ... my guess is that you should have a MIME alias when there is a unique
> escape sequence in the ISO-IR. So if the ISO-IR specified 3 escape
> sequences for UTF-16, then you'd need 3 different MIME names. But Keld will
> doubtless correct me if I am wrong.
>
Right, but the three registrations have nothing to do with byte order.
They have to do with conformance level:

  Level 1: Registration 193 (no combining chars, no Hangul Jamos)
  Level 2: Registration 194 (no combining chars)
  Level 3: Registration 195 (no restrictions)

I totally agree that, if IANA should register character sets at all, they
should follow the IR.

- Frank



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