[Dev-luatex] register a callback on macro expansion?

[Jjgod Jiang]

Hi,

2007/2/20, Hans Hagen <pragma at wxs.nl>:
> \def\hello#1{\directlua 0 {YourFunction("#1")}}

Yep. That works (but not for lua state 0, I use state 1 instead.)
But I'll need the slunicode library to process string like this, is
it available now? I have not found it on luatexref-t.pdf.

Thanks.

- jjgod.