How to add 2 letter language code in ISO 639-1

[Doug Ewell]

Arthur Reutenauer wrote:

> Note however that Chakma [ccp] is not in ISO 639-2, only -3, although
> I suppose that the policy applies to -3 as well.
>
> http://www-01.sil.org/iso639-3/documentation.asp?id=ccp

The JAC page states that "ISO 639-1 is to remain a subset of ISO 639-2,"
so that would certainly seem to exclude a 639-3–only language.
 
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Doug Ewell | Thornton, CO, US | ewellic.org