35 lines
873 B
Haskell
35 lines
873 B
Haskell
{-# LANGUAGE CPP,TemplateHaskell,DeriveDataTypeable #-}
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module Data.Encoding.ISO885915
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(ISO885915(..)) where
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import Data.Array ((!),Array)
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import Data.Word (Word8)
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import Data.Map (Map,lookup,member)
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import Data.Encoding.Base
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import Prelude hiding (lookup)
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import Control.Exception (throwDyn)
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import Data.Typeable
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data ISO885915 = ISO885915 deriving (Eq,Show,Typeable)
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enc :: Char -> Word8
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enc c = case lookup c encodeMap of
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Just v -> v
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Nothing -> throwDyn (HasNoRepresentation c)
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instance Encoding ISO885915 where
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encode _ = encodeSinglebyte enc
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encodeLazy _ = encodeSinglebyteLazy enc
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encodable _ c = member c encodeMap
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decode _ = decodeSinglebyte (decodeArr!)
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decodeArr :: Array Word8 Char
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#ifndef __HADDOCK__
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decodeArr = $(decodingArray "8859-15.TXT")
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#endif
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encodeMap :: Map Char Word8
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#ifndef __HADDOCK__
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encodeMap = $(encodingMap "8859-15.TXT")
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#endif
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