60 lines
1.5 KiB
Haskell
60 lines
1.5 KiB
Haskell
{-# LANGUAGE FlexibleInstances #-}
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module Types where
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data OutputStyle = LispStyle | PlainStyle
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data Options = Options {
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outputStyle :: OutputStyle
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, hlintOpts :: [String]
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, ghcOpts :: [String]
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, operators :: Bool
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, expandSplice :: Bool
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}
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defaultOptions :: Options
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defaultOptions = Options {
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outputStyle = PlainStyle
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, hlintOpts = []
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, ghcOpts = []
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, operators = False
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, expandSplice = False
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}
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----------------------------------------------------------------
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convert :: ToString a => Options -> a -> String
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convert Options{ outputStyle = LispStyle } = toLisp
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convert Options{ outputStyle = PlainStyle } = toPlain
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class ToString a where
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toLisp :: a -> String
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toPlain :: a -> String
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instance ToString [String] where
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toLisp = addNewLine . toSexp True
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toPlain = unlines
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instance ToString [((Int,Int,Int,Int),String)] where
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toLisp = addNewLine . toSexp False . map toS
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where
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toS x = "(" ++ tupToString x ++ ")"
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toPlain = unlines . map tupToString
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toSexp :: Bool -> [String] -> String
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toSexp False ss = "(" ++ unwords ss ++ ")"
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toSexp True ss = "(" ++ unwords (map quote ss) ++ ")"
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tupToString :: ((Int,Int,Int,Int),String) -> String
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tupToString ((a,b,c,d),s) = show a ++ " "
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++ show b ++ " "
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++ show c ++ " "
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++ show d ++ " "
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++ quote s
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quote :: String -> String
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quote x = "\"" ++ x ++ "\""
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addNewLine :: String -> String
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addNewLine = (++ "\n")
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