Re: [idn] case folding

[Marco d'Itri <md@linux.it>]

On Jun 11, RJ Atkinson <rja@inet.org> wrote:

 >One could imagine a URL:
 >         http://www.d-o^ng.vn
 >and its capitalised equal:
 >         http://WWW.D-O^NG.VN
What you explained would apply not only to Vietnamese, but to most
european languages too.
The point in this proposal (which I support) is that users should
not assume that domain names containing non-ASCII characters are case
insensitive.
Actually, at least in my country, users would not think of this as a
problem because most of them do not even know there are upper case
letters with accent marks, because they are not on the keyboard.
Maybe the RFC could suggest canonicalization being done by the user
interface (web browser, MUA) to help users, but this should not be
a requirement.

 >It is not reasonable to say that the content provider needs to 
 >register all domain-names with the myriad case combinations 
 >and manually map them to the same content, though I can see
I agree. I think registries should not allow registration of labels
containing upper case letters.

-- 
ciao,
Marco