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"Russell Y. Webb" wrote:
> b = 10
> c = 1
> function test(x)
> global c;
>     b = "this does not change the global";
>     c = "but this does";
>     print(10); -- this uses the read access to globals
> end

I thought about this myself.  But it complicates the parser a lot.
(Especially: a,b,c,d=foo4()  where a and d are new locals, b an old
local and c a global).  And you may get some strange semantics.  
Are your patches anywhere to have a look at?

Ciao, ET.