[mpeg-OTspec] Conflicts between language system tags

[Bob Hallissy]

Is it an option to freeze the existing language tags and then to bump 
the GSUB/GPOS table version and declare that in the new version all tags 
are, for example, ISO 639-3 (maybe the upper-case thereof) ?

Bob

On 2013-02-25 at 11:35 Levantovsky, Vladimir wrote:
> I am afraid that in the future, as we attempt to add more languages 
> supported by the OT/OFF standard we may see this situation repeated 
> when some of the tags already in use may conflict with the new tags 
> defined according to ISO 639 standard. Therefore, I would suggest that 
> we need to come up with a solution that would allow us reconcile the 
> differences between OT language system tags and ISO 639 language tags. 
> It is clear that for all newly defined languages new system tags 
> should be based on ISO 639 tag; however, we need to find a systematic 
> way that would allow us to resolve the existing and, potentially, 
> future conflicts.