This is not full subtag validation - there are too many subtlelies involved in checking correct use of subtags, and that's best left to the subtag checker. But we can flag if the subtag value is not recognised (in addition to the well-formedness check already done).
r12a
commented
8 years ago
This is not full subtag validation - there are too many subtlelies involved in checking correct use of subtags, and that's best left to the subtag checker. But we can flag if the subtag value is not recognised (in addition to the well-formedness check already done).