[Dev-luatex] Modifying the LuaTeX Engine

Taco Hoekwater taco at elvenkind.com
Thu Dec 25 09:10:28 CET 2008

وفا خلیقی، Vafa Khalighi wrote:
> Now it has
> been some time that I have been studying the TeX-e-Parsi engine and have
> studied the changes that they have done in the actual TeX engine.
> TeX-e-Parsi is a localised version of TeX which has perfect bidirectional
> support and I hope that we can make these changes in the LuaTeX engine so we
> have perfect bidirectional support.

The Omega code where the direction support in luatex comes from is
already much more advanced than eTeX's \beginR ... \beginL stuff,
so can you please explain why and how TeX-e-Parsi is better?

> TeX-e-Parsi adds about 100 Prmitive commands to the Original TeX primitive
> commands. I think we would not need all of these 100 commands but we will
> need the commands that have something to do with the directions.

Due to lack of comments in the tex.ch file I cannot even ascertain
which of the 100 commands deal with directions. Before I can say
anything more about this--let alone incorporate some stuff--I need
to read user (and preferably also developer-targeted) documentation.

Best wishes,

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