Re: [Ltru] draft-davis-t-langtag-ext

"Debbie Garside" <> Fri, 08 July 2011 18:51 UTC

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From: "Debbie Garside" <>
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Date: Fri, 8 Jul 2011 19:52:37 +0100
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Subject: Re: [Ltru] draft-davis-t-langtag-ext
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Thanks Doug

Yes that's what I was thinking of.

(Being lazy here) Does BCP47 reference the -u extension RFC?

If not things seem to be getting very messy with subtag rules potentially in a number of RFCs.

Just as an aside, ISO are actually merging all of the ISO 639 standards into one workable document.  It will be known as ISO 639 and will replace all the other standards.  I am the new Editor (appointed in Korea in June).

I must say I am more for merging procedures rather than splitting.  Quite funny as when it comes to languages I am for splitting rather than clumping :-)



-----Original Message-----
From: Doug Ewell [] 
Sent: 08 July 2011 17:39
To: Debbie Garside
Subject: RE: [Ltru] draft-davis-t-langtag-ext

Debbie Garside <debbie at ictmarketing dot co dot uk> wrote:

> Also, if my memory serves me correct, the responsibility for
> maintaining extension data was designed for private extensions not
> this type of extension where there is a more public use.

If you mean the 'x' singleton, as in "en-x-whatever", there are no
procedures.  You just make up the subtags and use them, and if you want
anyone else to understand them, you distribute a private agreement. 
These subtags don't have to be stabled, versioned, or freely available. 
They do have to be syntactically valid (e.g. 2*8alphanum), but that's
about it.

I just noticed that RFC 5646, Section 2.2.6 ("Extension Subtags"), item
3 says, "Note that there might not be a registry of these subtags."  I
missed this until now and wonder how it fits with Section 3.7, which
requires the extension RFC to specify the "URL location of the
registry."  Obviously that doesn't mean the IANA Language Tag Extensions
Registry; there would be no point in repeating that in every extension

Doug Ewell | Thornton, Colorado, USA | RFC 5645, 4645, UTN #14 | | @DougEwell ­