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Yeah! That's what I want. It is beautiful.

Thank you!

Michael
----- Original Message ----- From: "Bret Victor" <bret@ugcs.caltech.edu> 
To: <lua@bazar2.conectiva.com.br>
Sent: Monday, January 08, 2007 3:24 PM
Subject: Re: what's wrong with this loop syntax?



Shmuel Zeigerman <shmuz <at> actcom.co.il> writes:


local function strings(S)
   return function() return S:Next() end
end

for str in strings(S) do
   -- [code]
end


Or better yet:

 for str in S.Next, S do
    -- [code]
 end

This assumes that the function S.Next doesn't change during
the iteration, which is a pretty safe bet.