Standards and localization (was Dot-mapping)

John C Klensin klensin at
Sat Dec 8 15:53:33 CET 2007


Sorry.  Yes, you are correct.  I changed the example a couple of
times because I was thinking about trying to make an additional
point, then decided against that and forgot to change the
parsing component parts of the examples.


--On Saturday, 08 December, 2007 09:36 -0500 Vint Cerf
<vint at> wrote:

> john,
> I think there might have been an error in your example.
> I would have thought that the non-IDNA browser which thinks
> "." is the separator and does not know that "?" is intended
> to be a separator would parse the underlined string below
> into:
> "www" "xn--0xaat?example" and "com"
> your point is still correctly made - just the parsing looked
> wrong.
> vint
> On Dec 8, 2007, at 8:15 AM, John C Klensin wrote:
>>   http://www.xn--0xaat?
>> I copy that out and paste it into my browser, which we are
>> still assuming is not IDNA-aware.  Because the browser is not
>> IDNA-aware, the domain name is parsed into
>>    "www?xn--0xaat", "example" and "com"

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