[tex-hyphen] language tag for Serbian (Serbo-Croatian?) patterns

[Jonathan Kew]

Arthur, Mojca - Many thanks for the explanations/background!

On 20 Jul 2011, at 17:22, Arthur Reutenauer wrote:

>> - sh patterns should work ok for Serbian, Croatian, Bosnian, ... and
>> were originally created for Latin script only (in the time when this
>> was still considered a single language);
> 
>  Wasn't it for Cyrillic originally?  I remembered it was the other way
> round with respect to what you say, and that's how I told the story in
> my e-mail.  But that's the same idea :-)
> 
>> We noticed that "sh" has been deprecated, but an interesting fact
>> (Arthur may correct me if I'm wrong - I'm speaking out of my memory)
>> is that "sh" has first been deleted from tags and later on introduced
>> again.
> 
>  Yes, exactly: it was removed from the IANA Language Subtag Registry
> when it was deleted from ISO 639-1, then added back again after it was
> realised that, according to IETF BCP 47 rules, it should never have been
> retired (that was after 2008).
> 
> 	Arthur