comments on draft-ietf-idnabis-bidi
vint at google.com
Thu Aug 6 23:25:16 CEST 2009
we decided not to do INTER-LABEL checking. All the checks are INTRA-
On Aug 6, 2009, at 4:30 PM, Alireza Saleh wrote:
> Harald Tveit Alvestrand wrote:
>> When integrating comments into text, some additional notes....
>>>> 12) The next sentence says: "In a domain name consisting of only
>>>> LDH-labels and labels that pass the test, the requirements of
>>>> 3 are satisfied as long as a label that starts with an ASCII digit
>>>> does not come after a right-to-left label that ends in a digit."
>>>> This is not true. See example b above.
>>> You are right. This needs to be documented; I did not test this
>> I changed the sentence to say "the requirements of Section
>> 3 are satisfied as long as a label that starts with an ASCII digit
>> does not come after a right-to-left label" - I think this is true
>> for all cases.
> I think we came to the consensus during the Dublin meeting that
> working group should stay within the scope of labels and it
> shouldn't do
> the intra-label checking.Bringing the new concept ( intra label
> ) for domains will put registries into trouble.
> If the working group decides to do the intra-label checking then we
> think about some more complex rules such as : if a domain starts with
> AL, then some of the current restrictions can be ignored however, I
> think we can change the paragraph which discusses about prohibition
> mixing the AN and EN characters in a label to something like " AN and
> EN cannot be mixed within a label if the labels doesn't start with
> AL " .
> I would also recommend the removal of the text from bidi that talks
> about label uniqueness, the text itself reduces the accuracy of the
> protocol and it may cause some inconsistency, as Harald mentioned
> the IETF meeting , they have a script that tests all possible cases
> those problematic cases have been already resolved by some accurate
> rules, so if in the future we understand that something is missing,
> an explicit rule regarding them should be added to the protocol. The
> label uniqueness can also be moved to rationale document to cover all
> cases including homographs.
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