[luatex] Vital RTL issues in LuaTeX

[Yannis Haralambous]

Le 10 avr. 09 à 13:12, Khaled Hosny a écrit :

> This has to be handled at a higher level, the engine don't know about
> the directionality of individual characters, so you need to put  
> numbers
> inside {\textdir TRT } or write lua code that applies bidirectional
> algorithm at node level.


The engine knows about the directionality of each character since it  
is a Unicode property on the character level, that's the whole idea of  
the bidi algorithm.