Ævar Arnfjörð Bjarmason <avarab@...> writes:
Note: Some of these proposals propose using the three letter sil codes
for the projects in question, this is higly unadvisable because there
might be an ISO code issued that equals that code in the future.
Hi, Ævar!
The codes used in the current edition of Ethnologue are a subset of ISO 639-3
(other subsets being for extinct and constructed languages, and for
macro-languages), and they have already been completely harmonised with ISO
639-2. I'm not sure how many individual code changes they made, except that they
changed all their codes from upper to lower case.
And the SIL page on ISO 639-3 claims that it is "official site of the ISO 639-3
Registration Authority and thus is the only one authorized by ISO", so there is
no chance of any future code conflicts.
There is a complete list of codes on the site, which also includes the ISO 639-1
and ISO 639-2 codes for comparison.
Hyunsung