[XeTeX] [OT] OpenType Turkish language tag

[Ralf Stubner]

Adam Twardoch <list.adam at twardoch.com> writes:

> Will Robertson wrote:
>> The spec says that the Turkish language tag is "TRK":
>>   <http://www.microsoft.com/typography/otspec/languagetags.htm>
>>
>> But Adobe Garamond Pro (and others) have "TUR":
>
> It’s an acknowledged bug in Adobe Garamond Pro, which some font 
> developers copied despite this being advertised quite widely on the 
> relevant phora.

Would it be possible in fontspec to support both language tags? Say if
the user asks for Language=Turkish, 'TRK' is first tested. If that does
not exist, fontspec could look for 'TUR' emitting an error/warning, if
that doesn't exist either.

cheerio
ralf