[Dev-luatex] Modifying the LuaTeX Engine

Javier Bezos listas at tex-tipografia.com
Sat Dec 27 17:20:30 CET 2008

> As you can see in TeX-e-Parsi we can have automatic direction change.

The fact automatic direction change is hardcoded is a serious
drawback, and not and advantage, imo. There are many subtle
points in bidi typesetting which can be addressed only in a
programmable environment, like that provided by luatex. Even
with otps, which are very limited as compared with luatex, I
managed to implement a preliminary automatic direction change
(in fact, an automatic script change, including direction).

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