[luatex] Extending font dimensions from lua

[Khaled Hosny]

Is there a way to extend font dimensions past what the font actually
have from lua end?

I'm trying to emulate XeTeX's OpenType MATH handling, which adds
additional fontdimen parameters containing the values of MATH table, so
that code written for XeTeX could be easily extended to LuaTeX.

P.S. I'm using ConTeXt's OpenType code, so altering the tfm data
returned to tex end is possible.

Regards,
 Khaled

-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer