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-- vim: sw=2 ts=2 et:
import Control.Monad
import Control.Monad.Trans.State.Lazy
import Data.Attoparsec.ByteString.Char8
import Data.ByteString.Char8 (pack)
import Data.Maybe
import Chess
import Chess.FEN
import Chess.PGN
main = readPGN >>= mapM_ applyPGN
readPGN :: IO [PGN]
readPGN = do
pgn <- pack <$> getContents
case parseOnly pgnParser pgn of
Left err -> error err
Right [] -> error "no games"
Right games -> return games
applyPGN :: PGN -> IO ()
applyPGN pgn = printPGN pgn >> mapM_ printBoard (seqList [moveSAN m | m <- moves pgn] $ Right defaultBoard)
where
seqList (f:fs) (Right io) = f io:seqList fs (f io)
seqList _ (Left _) = []
seqList [] _ = []
printBoard (Left e) = putStrLn $ show e
printBoard (Right b) = putStrLn $ show b
printPGN :: PGN -> IO ()
printPGN pgn = do
putStrLn $ site pgn ++ " " ++ date pgn ++ ": " ++ whitePlayer pgn ++ " vs. " ++ blackPlayer pgn
putStrLn $ show $ result pgn
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