- From: Felix Sasaki <fsasaki@w3.org>
- Date: Thu, 10 Apr 2008 15:00:58 +0900
- To: Phil Archer <parcher@icra.org>
- CC: Eric Prud'hommeaux <eric@w3.org>, public-powderwg@w3.org, public-i18n-core@w3.org
Hi Phil,
I was looking into this section in your attachment:
[
2.1.3.4 Internationalized Domain Names
* Internationalized Domain Names (IDNs) should be converted from
Punycode [RFC3492] into their UTF-8 string representations. So that, for
example:
http://www.xn--exmple-jua.org/
becomes
http://www.exåmple.org/.
]
If you have
http://www.xn--exmpless-jua.org/
It is not possible to decide whether it should become
http://www.exåmpless.org/
or
http://www.exåmpleß.org/
since "ss" in the Punycode string could have been originally "ss" or "ß".
So I think this canonicalization step is not feasible. I'm also not sure
if it is necessary: If you get http://www.xn--exmpless-jua.org/ you
could process it in Powder just "as is", without trying to go to the
representation with non-ASCII characters. The same for
http://www.exåmpless.org/ . But maybe I missing something?
Just let me know what you think. Note that the problem of the
unidirectional relation between "ß" and "ss" is a problem of IDNs which
will soon be addressed by a proposed IETF Working Group, see
http://www.alvestrand.no/pipermail/idna-update/2008-March/001343.html
Felix
Received on Thursday, 10 April 2008 06:02:13 UTC