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{-# LANGUAGE OverloadedStrings #-}
import qualified Data.ByteString.Lazy as L
import Data.XDelta
import Text.XXD
source :: L.ByteString
source = "It could be said that Joe was here. I don't know what to do about it."
patched :: L.ByteString
patched = "It could be said that Joe, the magnificent, was here. I don't know what to do about it."
delta :: XDeltaFailable XDelta
delta = computeDiff defaultConfig source patched
main = do
mapM_ putStrLn $ xxd2 0 (L.toStrict source)
putStrLn ""
mapM_ putStrLn $ xxd2 0 (L.toStrict patched)
putStrLn ""
case delta of
XSuccess (XDelta d) -> mapM_ putStrLn $ xxd2 0 (L.toChunks d !! 0)
_ -> print delta
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