function printTableItem(k, v, level)

    for i = , level do

        io.write("    ")

    end

    io.write(tostring(k), " = ", tostring(v), "\n")

    if type(v) == "table" then

        if not tablePrinted[v] then

            tablePrinted[v] = true

            for k, v in pairs(v) do

                printTableItem(k, v, level + )

            end

        end

    end

end

printTableItem("_G", _G, )