Fw: Erzgebirgisch Classification Question
nobody at xyzzy.claranet.de
Tue Mar 25 11:28:02 CET 2008
Thomas Goldammer wrote:
> I don't know if these tags can be changed when more
> extensive work has been done on this (in some decades...).
Change in the sense of "add another prefix" is possible.
Replacing a prefix by a "better" prefix is not possible,
the overall idea of the registry is stability, once a
tag was legal it can't be invalidated.
So if you decide to wait for a successor of RFC 4646
introducing or allowing ISO 639-3 language subtags
including "sxu", and register erzgeb as sxu-erzgeb,
then it might be possible to add de-erzgeb later, but
it's not possible to remove sxu.
And vice versa, with the difference that "de" already
exists. "sxu" depends on a successor of RFC 4646 in
the direction of actual 4646bis drafts, adding all
ISO 639-3 subtags. That would be after the approval
of 4646bis or rather its companion 4645bis with a
bulk update of the subtag registry including "sxu".
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