idna folding (was Re: idna-bis and '?')

Erik van der Poel erikv at
Mon Dec 17 00:39:11 CET 2007

Ah, yes, that's a good point (distinction between mapping and
bundling). But Patrik used the term "mapping", so I was asking about


On Dec 16, 2007 3:09 PM, Harald Tveit Alvestrand <harald at> wrote:
> --On 16. desember 2007 15:07 -0800 Erik van der Poel <erikv at>
> wrote:
> > To me, this sounds as though one should not be mapped to the other at
> > registration time, so I don't understand why people would be
> > interested in treating them as the same codepoint at registration
> > time.
> We must take care with terms here.... I believe both Torbjørn and
> Torbjörn would be interested in a regime where registering "torbjø"
> would not be allowed if "torbjö" was already registered by someone
> else. But that's bundling, not mapping. And the "default member" of the
> bundle (the one that actually goes into the zonefile) would be different in
> Norway and Sweden.
> (btw, .no doesn't support bundling at this time. I don't believe .se does
> either.)
>                       Harald

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