From 49fd7aacdb97e1e5884452f2416b83d608f47d6f Mon Sep 17 00:00:00 2001 From: Ramakrishnan Muthukrishnan Date: Mon, 28 Dec 2015 15:42:05 +0530 Subject: [PATCH] cleanup a bit --- src/Lib.hs | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/src/Lib.hs b/src/Lib.hs index 693cc19..4a6ded1 100644 --- a/src/Lib.hs +++ b/src/Lib.hs @@ -27,9 +27,8 @@ fileSignatures bs blockSize = zip3 strongsigs weaksigs [0..] splitBS :: BL.ByteString -> Integer -> [BL.ByteString] splitBS bs blockSize | fromIntegral (BL.length bs) < blockSize = [bs] -splitBS bs blockSize | otherwise = - (BL.take (fromIntegral blockSize) bs) : - splitBS (BL.drop (fromIntegral blockSize) bs) blockSize +splitBS bs blockSize = BL.take (fromIntegral blockSize) bs : + splitBS (BL.drop (fromIntegral blockSize) bs) blockSize -- compute md4 digest (128 bits) blockSig :: BL.ByteString -> BS.ByteString @@ -49,7 +48,7 @@ genInstructions f0sigs blockSize fnew = evalState (go fnew) 0 where go :: BL.ByteString -> State Word32 [Instruction] - go fnew | (fnew == BL.empty) = return [] + go fnew | fnew == BL.empty = return [] | otherwise = let (blk, blks) = BL.splitAt (fromIntegral blockSize) fnew adlerSum = weakSig blk @@ -66,8 +65,10 @@ genInstructions f0sigs blockSize fnew = Just i -> do is <- go blks return $ RBlk (head i) : is - Nothing -> - return [RChar (BL.head blk)] + Nothing -> do + put adlerSum + is <- go (BL.tail (blk `mappend` blks)) + return $ RChar (BL.head blk) : is f0AdlerTable = toAdlerMap f0sigs f0MD4Table = toMD4Map f0sigs @@ -88,5 +89,5 @@ recreate f0 blockSize ins = go f0blocks (inst:insts) = case inst of RBlk i -> (f0blocks !! i) `mappend` go f0blocks insts - RChar w -> (BL.singleton w) `mappend` go f0blocks insts + RChar w -> BL.singleton w `mappend` go f0blocks insts -- 2.37.2