Q2: What mapping function should be used in a revised IDNA2008 specification?

Mark Davis mark at macchiato.com
Thu Apr 2 16:35:01 CEST 2009

I agree with that.


On Tue, Mar 31, 2009 at 22:41, John C Klensin <klensin at jck.com> wrote:
> --On Tuesday, March 31, 2009 12:07 -0400 Vint Cerf
> <vint at google.com> wrote:
>> What characters should be mapped into what other characters in
>> a   revised IDNA2008 specification?
>> Can we describe succinctly and precisely what these mappings
>> are? How?   What should they be?
> I actually don't believe we can do that, as the recent
> discussions that suggest that "mapping" actually implies
> restoration of all IDNA2003 relationships and characters,
> elimination of the requirement to reject (rather than looking
> up) strings containing DISALLOWED or UNASSIGNED characters, etc.
> Under no circumstances should mapping be used as a mechanism for
> undoing those decisions, i.e., mapping should be permitted only
> when the result is a PVALID character.
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