> the challenge was to know if I would ever get interested into using > Luatex and this pretty much clinches it. > > Waiting for Pythontex.
and by the way, Hans, the code by Henri was but direct translation into Lua, to provide an example to tex.sx user, of code by Joseph which was couched in expl3 language don't forget transmitting your optimized remarks to Joseph next time you see him regards, Jean-François
