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{-# LANGUAGE OverloadedStrings #-}
import qualified Data.ByteString.Lazy as L
import Data.VCDIFF
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 :: Result VCDIFF
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
Result δ@(VCDIFF d) me -> do
-- mapM_ (mapM_ putStrLn . xxd2 0) (chunksOf 16 d)
mapM_ putStrLn $ xxd2 0 (L.toStrict d)
print me
putStrLn ""
let Result patched' pe = applyPatch defaultConfig source δ
mapM_ putStrLn $ xxd2 0 (L.toStrict patched') -- $ L.take 48 patched')
print pe
print ("source",source)
print ("patched",patched)
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