s = [[v 1.000000 0.000000 -1.000000
v 1.000000 0.000000 1.000000
v -1.000000 0.000000 1.000000
v -1.000000 0.000000 -1.000000
v -0.000000 2.000000 0.000000
vn 0.0000 -1.0000 0.0000
vn 0.8944 0.4472 0.0000
vn -0.0000 0.4472 0.8944
vn -0.8944 0.4472 -0.0000
vn 0.0000 0.4472 -0.8944]]

i = 1
for word in
  string.gmatch(s, "v [0-9.-]* [0-9.-]* [0-9.-]*") do
    --print(word)
    -- outputFile:write("Node"..i.. "= {" ..word.. "}\n")
    -- outputFile:write("Node"..i.. "= {" ..string.gsub(word, "(%s)", "x=", 1).. "}\n")
    print("Node"..i.. "= {" ..string.gsub(word, "([^%s]) ([^%s]) ([^%s])", "x=%1 y=%2 z=%3", 1).. "}")
    i = i + 1 
end