> From: ietf-languages-bounces@xxxxxxxxxxxxx [mailto:ietf-languages- > bounces@xxxxxxxxxxxxx] On Behalf Of John Cowan > > The whole question of what is a language, a variant or dialect of a > > language, or a suitable substitute for a language, would benefit some > > thought in any tagging scheme, though I agree the problem is not > > generally soluble. > > See the editor's draft of ISO 639-3 at http://tinyurl.com/6kky2 ... I would say that all of clause 4.2 is relevant; in addition to 4.2.1, I would especially include 4.2.2, in relation to which I have presented ideas that led to the inclusion of the Extensions subtag in the proposed draft. (I originally thought of it as a way to capture some existing registered tags as part of a consistent scheme rather than merely as ad-hoc tags, but I think it may be more generally useful as well for dealing with some of the issues regarding different perceptions of what is a language.) I'm afraid I don't have time at the moment to elaborate further. Peter Constable _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf