1543e75f50
This envolves adding the requirement, that every Encoding must also be an instance of Eq and Typeable to go into DynEncoding. darcs-hash:20090225035150-a4fee-c7d902e28313929ee9ffe0c6a6b60d8ff4704ae9
20 lines
579 B
Haskell
20 lines
579 B
Haskell
{-# LANGUAGE DeriveDataTypeable #-}
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module Data.Encoding.ISO88591 where
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import Control.Throws
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import Data.Encoding.Base
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import Data.Encoding.Exception
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import Data.Encoding.ByteSource
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import Data.Encoding.ByteSink
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import Data.Char (ord,chr)
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import Data.Typeable
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data ISO88591 = ISO88591 deriving (Show,Eq,Typeable)
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instance Encoding ISO88591 where
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encodeChar _ c
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| c > '\255' = throwException (HasNoRepresentation c)
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| otherwise = pushWord8 (fromIntegral $ ord c)
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decodeChar _ = do
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w <- fetchWord8
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return (chr $ fromIntegral w) |