http://luaforge.net/docman/index.php?group_id=80&selected_doc_group_id=95&language_id=1

Thanks, I didn't know that. But anyway there's much more to it, since lua as used in LuaTeX has many external libraries embedded (luazip, Lua Parsing Expression Grammars, a library for manipulating Unicode strings etc.); and in addition to that all the special libraries that have been written by Taco and Hans (chapter 4 of the LuaTeX reference manual). So there are actually quite a lot of additional things and I expect the difference between versions 5.0 and 5.1 of the core language and libraries to be rather unimportant (at least in that respect). Arthur P-S for Taco: Am I right in saying that the list of additional libraries is: • The twelve ones documented in luatexref-t.pdf • lfs, luamd5, lpeg, luazip, luazlib and Selene Unicode (as seen in src/libs)? That could be a start to write a complete texlua manual ... (here I'm only interested in the libraries providing new lua functions, obviously).

Arthur Reutenauer wrote:

P-S for Taco: Am I right in saying that the list of additional libraries is: • The twelve ones documented in luatexref-t.pdf • lfs, luamd5, lpeg, luazip, luazlib and Selene Unicode (as seen in src/libs)?

Yes, that's it. Luazlib actually defines things in two separate tables, but that is the only oddity I am aware of. There are a few extensions to the lfs and os tables I wrote, but those are documented in the manual already.

That could be a start to write a complete texlua manual ... (here I'm only interested in the libraries providing new lua functions, obviously).

I plan to incorporate the reference for each of those additional external libraries in the manual, but that is a somewhat timeconsuming task and I never seem to get around to it. Best wishes, Taco

OK , found it http://lua-users.org/wiki/LuaShortReference

Interesting :-) Thanks! Arthur