I-D Action:draft-faltstrom-5892bis-02.txt

James Mitchell james.mitchell at ausregistry.com.au
Tue Feb 22 03:05:56 CET 2011

Deployed software is existent and is in use in the .emarat IDN ccTLD. 

Putting my cynical hat on, I would say that to recognise the character as an exception this group would have to admit it did not quite achieve the goal to make IDNA independent of Unicode. We could change the algorithm to automatically generate exceptions due to stability changes in new Unicode versions, however gut-feel is that this is overkill given the frequency and impact of stability changes.

Stability is more important to me than 'this character is most likely not used'. The IDNA algorithm has the ability to handle these occurrences through exceptions and we should not be afraid to make use of such features.


> -----Original Message-----
> From: idna-update-bounces at alvestrand.no [mailto:idna-update-
> bounces at alvestrand.no] On Behalf Of Andrew Sullivan
> Sent: Tuesday, 22 February 2011 11:40 AM
> To: idna-update at alvestrand.no
> Subject: Re: I-D Action:draft-faltstrom-5892bis-02.txt
> On Mon, Feb 21, 2011 at 03:43:20PM -0800, Mark Davis ? wrote:
> > The short-term issue is draft-faltstrom-5892bis-02.txt. I was asked to state
> > why I think it is incorrect. It is because is no compelling reason to break
> > stability of identifiers in IDNA for this one character. Instead, the
> > character U+19DA NEW TAI LUE THAM DIGIT ONE should be added as PVALID in
> > Section G.
> There's no compelling reason to add it either, though, given that
> everyone seems to agree that the chances of it actually being anywhere
> in the wild is almost certainly 0.  So why add an exception for a
> corner case?
> Note that I might feel much more strongly in agreement with you if
> IDNA2008 had actually come out in 2008.  But given how new it is, the
> deployed software is practically non-existent.  Adding an exception
> now is just extra work for no gain.
> A
> --
> Andrew Sullivan
> ajs at shinkuro.com
> Shinkuro, Inc.
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