Olle,
having thought about your comments for a while while on travel,
I feel that:
1) The stuff about iana-art, iana-hum and iana-ukn, I don't like.
The reason is that iana-hum and iana-art look like prefixes, and you
want to tack stuff onto the end. iana-c and iana-simula are more likely
candidates. If you have something that you haven't registered with
IANA, use X-language (x-loglan).
I think I will add iana-c to the references!
iana-ukn MAY be a good idea, but I would prefer iana-unknown, or
state explicitly that the header should be missing or empty on this case.
2) The stuff about registering enough information is good. I will add
a registration form as an appendix, requesting the information you
want.
Main tags can only be registered through ISO, so registration forms
for these should not be required here.
Something like:
IANA registration form for subtags for language codes
1) Main tag it is to be registered with:
2) Subtag requested:
3) Original name of language, expressed in ASCII:
4) English name of language:
5) French name of language, expressed in ASCII:
6) Literature reference defining or descrbing the language:
7) Name and E-mail address of applicant:
Most of the editing stuff, I think I will insert without further comment.
Harald A