Esszett, Final Sigma, ZWJ and ZWNJ

[LB]

Are not cuneiforms also symbols?
--
LB


2009/2/21 Vint Cerf <vint at google.com>:
> these are not permitted to be registered as they are symbols, not
> letters/digits.
>
>
>
> Vint Cerf
> Google
> 1818 Library Street, Suite 400
> Reston, VA 20190
> 202-370-5637
> vint at google.com
>
>
>
>
> On Feb 21, 2009, at 4:59 PM, LB wrote:
>
>> this is a matter of user. I would register "$£€. tld". Are we sure
>> that I will not have a problem, or these characters should not they be
>> protected, in case  "$" results  to "USD", "£" to "GBP", etc.
>>
>> Thank you.
>> --
>> LB
>>
>> 2009/2/21 Vint Cerf <vint at google.com>:
>>>
>>> Folks,
>>>
>>> My reading of the consensus is that the WG has discussed and generally
>>> accepted that Esszett, Final Sigma, ZWJ and ZWNJ can be made PVALID.
>>> For registries that formerly mapped Esszett or Final Sigma, the
>>> solutions are:
>>>
>>> 1. block registration of Esszett and Final Sigma at the registry level
>>> (in which case any former registration forms are still valid but will
>>> not be found by entering the newly PVALID characters)
>>>
>>> 2. Bundle Esszett with "ss" and Final Sigma with lower case ("sigma")
>>> (and do so retrospectively for all prior registrations of the mapped
>>> forms).
>>>
>>> With regard to ZWJ and ZWNJ, these would be PVALID but constrained by
>>> CONTEXTJ rules as to their valid usage.
>>>
>>> As I read the charter, the WG has the latitude to adopt these
>>> recommendations.
>>>
>>> It has been pointed out that there are consequences of not mapping
>>> characters per IDNA2003. One example relates to the appearance of,
>>> e.g., Esszett in a URL. A side-effect of the mapping under IDNA2003 is
>>> that the Esszett character would be converted to "ss" and this would
>>> match a registration of a domain name that contained Esszett since the
>>> registered form would have been mapped prior to registration into the
>>> "ss" form. It seems beneficial to articulate to the best of our
>>> ability such side-effects as an aid to users, software writers,
>>> registries and registrars who may need to define policies for
>>> registration limitations or adopt other compensating practices.
>>>
>>> Vint
>>>
>>>
>>> Vint Cerf
>>> Google
>>> 1818 Library Street, Suite 400
>>> Reston, VA 20190
>>> 202-370-5637
>>> vint at google.com
>>>
>>>
>>>
>>>
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>>>