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module Fractran.Interpreter (
fractran
) where
import Fractran.Parser
fractran :: FractranProgram -> [Int]
fractran program =
let prog = map (\(x,y) -> (fromIntegral x, fromIntegral y)) (fractions program)
f = (\p v -> if (p == [])
then []
else let (curX, curY) = head p
newV = v * curX / curY
in if (isInt newV)
then newV : (f prog newV)
else f (tail p) v)
result = map round (f prog (fromIntegral (initialValue program)))
in (initialValue program) : result
isInt :: (RealFrac a) => a -> Bool
isInt x =
x == fromInteger (round x)
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