One language, one subtag

Doug Ewell dewell at
Sat Feb 17 08:23:09 CET 2007

John Cowan <cowan at ccil dot org> wrote:

> CE Whitehead scripsit:
>> So we never register macrolanguages?
> We register them but do not define them.  We only define language 
> variants.

Not even that.  We don't register macrolanguages per se; what we do is 
register primary language subtags, some of which correspond to ISO 639-3 
macrolanguages.  The only difference between these and all the other 
primary language subtags is that some (but not all) of them may be 
followed by an extended language subtag.

Doug Ewell  *  Fullerton, California, USA  *  RFC 4645  *  UTN #14

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