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> I do like locals but local to a do-end blocks or functions not
> necessary files. So here is a simple use case.

Let's see again your first example:

> (file oneVar.lua)
> local x = 1
> 
> (file simpleTest.lua)
> print("starting")
> dofile("oneVar.lua")
> print(x)
> print("the end")

You have to see dofile("oneVar.lua") as:

do
    php_dumb_include("oneVar.lua")
end

Also, dofile is done at runtime, not at compile time, so when you load simpleTest.lua, the compiler don't know that there is a local variable x defined in oneVar.lua.

Julien D.