Tim Starling wrote:
This scheme gives us a way to specify everything that was rejected from ISO 639-2 on the basis of being a dialect not a language. Languages which are not in ISO 639-2 due to being too small or too new (like Toki Pona) will have to be given longer, descriptive hostnames for the time being.
FWIW, all otherwise unassigned artificial languages may be grouped under the ISO 639-2 code 'art' (eg, 'art-tokipona').
-- brion vibber (brion @ pobox.com)