snappy / tests / Functions.hs

module Functions
    ) where

import qualified Data.ByteString as B
import qualified Data.ByteString.Lazy as L

rechunk :: Int -> B.ByteString -> L.ByteString
rechunk n
    | n <= 0    = error "rechunk: wtf!?"
    | otherwise = L.fromChunks . go
  where go bs | B.null bs = []
              | otherwise = case B.splitAt n bs of
                              (x,y) -> x : go y
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