I have tried to include all important changes for Lua 5.1,
corrected some minor bugs and typos and changed the layout so that
the
whole thing now prints on four pages (A4, for the time being). It
looks
more cramped than does Enrico's version but then again, it's a
reference
card and not a literary work.
3. I know this is outside the scope of Lua + core libraries, and
would ruin
the four-pageness (i.e. 8-pageness) of the document, but how about an
"extended version" which squeezes in LuaSocket, too? (Pushing my
luck :-)