encoding/Data/Encoding/ISO88592.hs
Henning Guenther 496761301f Initial commit
darcs-hash:20070802003505-a4fee-97432a586ed2453061ef246d1e7a81fec35d1bac
2007-08-01 17:35:05 -07:00

34 lines
776 B
Haskell

module Data.Encoding.ISO88592
(ISO88592(..)) where
import Data.Array
import Data.Map hiding ((!))
import Data.Word
import Data.Encoding.Base
import Data.ByteString hiding (length,map)
import Prelude hiding (lookup,all)
import Control.Exception
data ISO88592 = ISO88592
enc :: Char -> Word8
enc c = case lookup c encodeMap of
Just v -> v
Nothing -> throwDyn (HasNoRepresentation c)
instance Encoding ISO88592 where
encode _ = encodeSinglebyte enc
encodeLazy _ = encodeSinglebyteLazy enc
encodable _ c = member c encodeMap
decode _ = decodeSinglebyte (\w -> decodeArr!w)
decodeArr :: Array Word8 Char
#ifndef __HADDOCK__
decodeArr = $(decodingArray "8859-2.TXT")
#endif
encodeMap :: Map Char Word8
#ifndef __HADDOCK__
encodeMap = $(encodingMap "8859-2.TXT")
#endif