Comments on draft-ietf-idnabis-defs-10

[Vint Cerf]

you should not be able to reproduce this if I have understood the  
encoding/decoding algorithm. I thought it treated upper and lower case  
ascii as equal value for purposes of encoding and decoding.  this was  
to allow upper/lower case ascii to be case insensitive in the  
punycoding algorithm, I believe.

v

On Aug 30, 2009, at 3:54 PM, Patrik Fältström wrote:

> On 30 aug 2009, at 20.22, Wil Tan wrote:
>
>> However, if certain characters in an A-label have
>> been uppercased, the Punycode decoding algorithm (due to its mixed- 
>> case
>> annotation feature) may produce invalid U-label because the ASCII  
>> characters
>> will be in capital letter form.
>
> Can you give examples of when this happens? I can not see this  
> result in the punycode algorithm. I also just did some tests with  
> mixed ascii, latin and chinese characters, and can not reproduce.
>
>   Patrik
>
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