[luatex] writing direction

Khaled Hosny khaledhosny at eglug.org
Thu Jan 26 11:44:42 CET 2012

On Thu, Jan 26, 2012 at 10:29:02AM +0100, Herbert Voss wrote:
> In the current Lua documentation I found
> LuaTEX only understands 4 of the 16 direction specifiers of Aleph:
> TLT (latin), TRT (arabic), RTT
> (cjk), LTL (mongolian). All other direction specifiers generate an
> error (LuaTEX 0.45).
> is this still correct for the current version?

AFAIK, yes, and this was a deliberate choice; earlier versions of luatex
supported all of them but it was then decided to simplify the code and
support only directions that have a real use.


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