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

Mykyta Yevstifeyev <evnikita2@gmail.com> Sun, 10 July 2011 17:45 UTC

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Date: Sun, 10 Jul 2011 20:46:02 +0300
From: Mykyta Yevstifeyev <evnikita2@gmail.com>
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Subject: Re: [Ltru] Fwd: draft-davis-t-langtag-ext
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10.07.2011 17:54, Doug Ewell wrote:
> Mykyta Yevstifeyev proposed to replace
> > | lang= | language       | [BCP47 
> <http://tools.ietf.org/html/draft-davis-t-langtag-ext-01#ref-BCP47>], 
> with restrictions |
> > |       | ["-" script]   |                            |
> > |       | ["-" region]   |                            |
> > |       | *("-" variant) |                            |
> in the present draft with:
> > lang     = langtag
> This won't work, because BCP 47 'langtag' includes tags that contain 
> an extension or private-use component, which are not allowed in the 
> present draft because that would leave no exit from 't' to other 
> extensions or private-use components within the main tag.  So this 
> particular optimization of Mykyta's needs to be rejected.
Yes, I agree here.  The only definitions of <language>, <script>, 
<region> and <variant> are to be imported from BCP 47. However, I don't 
withdraw my other ABNF-related comments.

Mykyta