On 6 Oct 2016, at 10:08, Phillip Hallam-Baker wrote:
I have been looking for the IANA registry in which the IDNA prefix
xn-- is
allocated and have not been able to find it. I can see the following
possibilities
1) There isn't such a registry. The allocation is purely ad hoc
2) There is a registry but none of the IDNA RFCs bother to list it as
a
normative reference.
It is #1. It is defined in the IDNA RFCs as a single value. If you want
to change IDNA, you need to update the RFC.
--Paul Hoffman
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