[luatex] macros to invoke lua in LaTeX

[Elie Roux]

Hello,

I'm stabilizing a luatextra package. I can do most of the things by 
myself, but there is something that should be validated by someone else: 
the name of the wrapper for \directlua0. In ConTeXt it's \ctxlua, but in 
luatextra (that will be for both plain and LaTeX) I can't find a perfect 
name, and I think it would be a bad idea to change it later, as a lot of 
people will use it. The aim of this macro is to allow package writers to 
invoke lua code with a small macro, so I thought \pkglua would be good, 
but it doesn't start by \lua... Do you think it would be good anyway?

Should I provide a \lua macro that invokes \directlua0, to be used by 
users? I was also thinking about a \luastate macro that would be a 
wrapper for \directlua to write in some states...

Thank you in advance,
-- 
Elie