Eszett and IDNAv2 vs IDNA2008

Erik van der Poel erikv at
Thu Mar 12 18:42:03 CET 2009


If the registrant would prefer the name to be displayed with Eszett no
matter which way the user typed the name, they would want some
mechanism to indicate the preferred display.


On Wed, Mar 11, 2009 at 10:59 PM, Adam M. Costello
<idna-update.amc+0+ at> wrote:
> "Shawn Steele (???)" <Shawn.Steele at> wrote:
>> In my view the real problem comes when I don't know what the preferred
>> display form is supposed to be.
> You mean you have received a mapped label (either ACE or mapped &
> normalized Unicode) and you want to display it.  Can you give example
> scenarios?  How did you receive the label, why do you want to display
> it, and why did the sender give you a mapped label instead of a more
> display-friendly label?  I'm sure this happens, but I want to understand
> how common or uncommon it will be.
> The example I'm already familiar with is email applications displaying
> headers, and the problem is being address by recent specs for UTF-8 mail
> headers, which will (I think) enable the sender to leave the domain
> names unmapped in the header, just as the user typed them.
> Thanks,
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> Idna-update at

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