Tamil Numerals in IDNA - Re: WG Last Call for Four

[Shawn Steele]

I also disagree.  This kind of case-by-case exception doesn't scale.  Registrars can avoid them if desired.

-Shawn

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Message: 6
Date: Fri, 21 Aug 2009 12:02:23 +1000
From: James Mitchell <james.mitchell at ausregistry.com.au>
Subject: RE: Tamil Numerals in IDNA - Re: WG Last Call for Four
        Primary IDNABIS I-Ds
To: Vint Cerf <vint at google.com>, Gihan Dias <gihan at cse.mrt.ac.lk>
Cc: idns <idns at icta.lk>, Patrik F?ltstr?m <patrik at frobbit.se>,
        "idna-update at alvestrand.no" <idna-update at alvestrand.no>,        lisa
        Dusseault <lisa.dusseault at gmail.com>
Message-ID:
        <8CEF048B9EC83748B1517DC64EA130FB3DED788CA6 at off-win2003-01.ausregistrygroup.local>

Content-Type: text/plain; charset="utf-8"

I disagree.

This is a result of case-by-case analysis of individual characters.  If one
does not want the characters in a label then do not allow them during
registration.

James

> -----Original Message-----
> From: idna-update-bounces at alvestrand.no [mailto:idna-update-
> bounces at alvestrand.no] On Behalf Of Vint Cerf
> Sent: Friday, 21 August 2009 11:25 AM
> To: Gihan Dias
> Cc: idns; Patrik F?ltstr?m; idna-update at alvestrand.no; lisa Dusseault
> Subject: Re: Tamil Numerals in IDNA - Re: WG Last Call for Four Primary
> IDNABIS I-Ds
>
> gihan,
>
> thank you for this important input.
>
> Is there disagreement in the WG with this proposed exception?
>
> vint
>
>
> On Aug 20, 2009, at 9:22 PM, Gihan Dias wrote:
>
> > 2009-08-10 ?.?. 4:52 ???, Vint Cerf ??????:
> >>
> >> Folks,
> >>
> >> the following documents are now officially on last call ending
> >> August 24, 2009. Editorial comments and new issues (only) will be
> >> considered:
> > ...
> >> The Unicode code points and IDNA: draft-ietf-idnabis-tables-06.txt
> >>
> > The Sri Lanka IDN Task Force considered the document draft-ietf-
> > idnabis-tables-06.txt and has an issue with the inclusion on the
> > Tamil Digits as valid IDNA characters.
> >  0BE6..0BEF  ; PVALID      # TAMIL DIGIT ZERO..TAMIL DIGIT NINE
> > These characters are not in general use, and several of them are
> > identical or similar to other Tamil characters (see attached image).
> >
> > SL-IDN-TF member G. Balachandan said:
> >> Tamil has a distinct set of digits. These digit representations
> >> were commonly used in the early twentieth century but these are not
> >> used now (or very less usage). Presently the European digits have
> >> replaced the Tamil numerals in usage. Most of the Tamil numerals
> >> cannot be distinguished from some of the Tamil vowels, consonants,
> >> syllables and other symbols.
> >> (Please see the attached image)
> >> Tamil numerals should not be allowed in IDNA2008
> >> Thanks
> >> Bala
> > Note that the usage of Tamil digits is quite different to, for
> > example, Devanagari or Bengali digits, which *are* in current use.
> > Most Tamil speakers today are not even aware of the Tamil digits,
> > and would not know how to input them on a keyboard. [I believe that
> > a similar situation exists for other South Indian scripts, as well
> > as Thai, etc. but will confine this request to Tamil].
> >
> > I am aware that Tamil digits have the Unicode property "Nd", in
> > common with other digits, and it will be difficult to segregate them
> > on the basis of Unicode properties.
> >
> > Leaving it up to registries to not register names with these digits
> > is unlikely to work, as registries would normally use the RFC as
> > their reference.
> >
> > However, we consider that the potential for confusion is sufficient
> > that they be disallowed in the protocol, and request that they be
> > excluded.
> >
> > Sincerely,
> >
> > Gihan Dias
> > Chairman, Sri Lanka IDN Task Force
> > <Tamil Numerals.jpg>
>
> _______________________________________________
> Idna-update mailing list
> Idna-update at alvestrand.no
> http://www.alvestrand.no/mailman/listinfo/idna-update

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Message: 7
Date: Thu, 20 Aug 2009 19:19:15 -0700
From: Paul Hoffman <phoffman at imc.org>
Subject: Re: Tamil Numerals in IDNA - Re: WG Last Call for Four
        Primary         IDNABIS I-Ds
To: Vint Cerf <vint at google.com>, Gihan Dias <gihan at cse.mrt.ac.lk>
Cc: idns <idns at icta.lk>, Patrik F?ltstr?m <patrik at frobbit.se>,
        idna-update at alvestrand.no, lisa Dusseault <lisa.dusseault at gmail.com>
Message-ID: <p06240814c6b3b3b5c3d2@[75.101.18.87]>
Content-Type: text/plain; charset="us-ascii"

At 9:24 PM -0400 8/20/09, Vint Cerf wrote:
>Is there disagreement in the WG with this proposed exception?

It truly depends on how the exception is expressed in the tables document. The author alerts us to the fact that there are other likely sets of digits that might be treated similarly, but he didn't specify a way to handle the exception.

The WG might start adding case-by-case exceptions during the WG Last Call, but that wasn't discussed.


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