Doug Ewell wrote:
Stephane Bortzmeyer <bortzmeyer at nic dot fr> wrote:On Mon, Sep 18, 2006 at 09:08:15AM +0200, Frank Ellermann <nobody at xyzzy.claranet.de> wrote a message of 16 lines which said:For ALL prefixes, for ALL Suppress-Scripts, and for ALL Preferred-Values anywhere in the registry ALL subtags of the corresponding tags (or script subtags in the case of Suppress-Script) are registered.Yes, but it is a consequence of RFC 4646 rules or is it just a coincidence?It's just a coincidence. There is no restriction that a Preferred-Value cannot be a grandfathered tag.
It's a coincidence, but one that is desirable. In other words, I think it would be a Bad Thing to deprecate some value in favor of a grandfathered tag in the post-RFC 4646 era.
In fact, the rules explicitly allow a Preferred-Value to be a tag, if the thing being deprecated is a grandfathered item. In 4646bis, for example, it says:
--# For fields of type 'script', 'region', and 'variant', 'Preferred-Value' contains the subtag of the same 'Type' that is preferred for forming the language tag. # For fields of type 'language' and 'extlang', 'Preferred-Value' contains the language production (see Figure 1 (Language Tag ABNF)) that is preferred when forming the language tag. This can be simply a 'language' subtag, or it can be a 'language' subtag followed by an extended language sequence. # For fields of type 'grandfathered' and 'redundant', a canonical mapping to a complete language tag.
-- Addison -- Addison Phillips Globalization Architect -- Yahoo! Inc. Internationalization is an architecture. It is not a feature. _______________________________________________ Ltru mailing list Ltru at ietf.org https://www1.ietf.org/mailman/listinfo/ltru
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