Tagging transliterations from a specific script

[Michael Everson]

On 16 Mar 2011, at 22:48, David Starner wrote:

>> What is wrong with that? The use of -alalc92 in those contexts couldn't mean anything else.
> 
> Except to a computer, which may look at a tag like tt-Arab-something and set the environment to RTL, or just tell the user that the text is in the Arabic script. Even humans who don't know the registry well would probably assume that was in Arabic script.

No, it is the characters themselves which have RTL properties and which invoke such behavioural functionality. The language tag is not the place for the computer to determine that. 

Michael Everson * http://www.evertype.com/