The TRANSITIONAL proposal (was: The real issue: interopability, and a proposal)
vint at google.com
Tue Dec 1 20:26:08 CET 2009
we had some states like this in the early stages of jan 2007: Maybe-
Yes and Maybe-No
the problem was how to treat them for protocol purposes. both of them
appeared to me to have the property: you can't register them and you
should not look them up.
but I guess it left the door open to changing later.
On Dec 1, 2009, at 1:15 PM, Andrew Sullivan wrote:
> On Tue, Dec 01, 2009 at 09:49:10AM -0800, Mark Davis ? wrote:
>> When reading some of the transition proposals, one approach
>> occurred to me.
>> What if we have a new status for the 4 characters: TRANSITIONAL?
>> That will cause currently valid URLs to fail, but that is far
>> better than
>> having them have ambiguous targets. This way we get to the long-
>> term goal of
>> having these characters be PVALID, without having the disruption
>> during the
> I like this distinction between "failure incompatibility" and
> "ambiguous incompatibility": it strikes right at the heart of the
> If the proposal were to go ahead (i.e. we were to add a TRANSITIONAL
> status), then it solves a few problems:
> 1. The rest of the (less-controversial) changes can go ahead.
> 2. The problem is not "baked in" for all time (i.e. we signal now
> that a change will be coming).
> 3. We get some time perhaps to invent a way to deal with the
> transitional characters.
> 4. We get a new mechanism by which we can solve a future problem
> of this sort were one, heavent forfend, to show up.
> So I think this could be a fruitful direction. My only hesitation is
> the possibility that we'd end up in exactly the same position in a few
> years, because someone decided to do fancy client-based mapping in an
> effort to produce backward compatibility with IDNA2003. Would we have
> the will at that point to say, "Too bad, we told them not to do that"?
> Andrew Sullivan
> ajs at shinkuro.com
> Shinkuro, Inc.
> Idna-update mailing list
> Idna-update at alvestrand.no
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