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On Mon, 17 Oct 2011 19:11:38 -0200, Luiz Henrique de Figueiredo wrote:

local M={}
function M.f() ... end
return M

There is no need for a module function and no need for syntax either.
No one needs to know about _ENV for that only for complicated things
like avoiding writing "M." (probably not a good idea as it serves as
documentation of what is exported).

I use an alternative construction that does the same thing in the end:

local f = function() ... end
return {
  version = "1.0.2",
  f = f,

I also think modules shouldn't modify the global namespace.
This solution doesn't allow concatenation of module files but this is
a small price to pay for a simple, understandable module mechanism.

Pierre Chapuis