Multiple preferred values [was: Add retired tag "eml" to the IANAregistry]

John Cowan cowan at
Mon Dec 14 17:45:04 CET 2009

Randy Presuhn scripsit:

> BCP 47 doesn't allow multiple Preferred-Value fields, and, more
> importantly, it doesn't allow splitting a tag.  The impact of an ISO
> decision to split would be the creation of new subtags, most likely
> as variants, to identify the distinction.  

Going forward, all the retired subtags will already be in the registry,
free for anyone to use, even if marked deprecated.  Consequently, there
will be no need to allocate variant subtags for these dialects.

My proposal was intended to restore parity between the 2007-2009 and
the 2009-? periods.

John Cowan             cowan at
One of the oil men in heaven started a rumor of a gusher down in hell.  All
the other oil men left in a hurry for hell.  As he gets to thinking about
the rumor he had started he says to himself there might be something in
it after all.  So he leaves for hell in a hurry.    --Carl Sandburg

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