I'm currently checking it and also an other filter written in lua (lua2dox.lua).

doxygen-lua generates smart documentation (with function members, data members,
...), but line numbers are wrong.

lua2dox.lua gives right line numbers, but the generated documentation does not
separate functions from data.

So, I will add doxygen-lua and use it to document the next to come new dialog
engine written in Lua, and I'll try to patch that filter later (I'm not a Perl
programmer) to have it generating the right line numbers.