X-Git-Url: http://git.cielonegro.org/gitweb.cgi?a=blobdiff_plain;f=Network%2FHTTP%2FLucu%2FMIMEType.hs;h=acd76b67b1bfc7b9796498fd6b2cbfa2adbcdf8e;hb=ea2b7838f1b3d9d4923a220a601be2e04cc559d7;hp=b7ceb4043fdd656173f9d503cbe9974c2fdf8547;hpb=9ac730212cb361eb10e5fe4ad0eec6758e2b200a;p=Lucu.git diff --git a/Network/HTTP/Lucu/MIMEType.hs b/Network/HTTP/Lucu/MIMEType.hs index b7ceb40..acd76b6 100644 --- a/Network/HTTP/Lucu/MIMEType.hs +++ b/Network/HTTP/Lucu/MIMEType.hs @@ -1,74 +1,65 @@ -{-# OPTIONS_HADDOCK prune #-} +{-# LANGUAGE + OverloadedStrings + , UnicodeSyntax + #-} -- |Manipulation of MIME Types. module Network.HTTP.Lucu.MIMEType ( MIMEType(..) , parseMIMEType + , printMIMEType + , mimeTypeP , mimeTypeListP ) where - -import qualified Data.ByteString.Lazy as B -import Network.HTTP.Lucu.Parser -import Network.HTTP.Lucu.Parser.Http -import Network.HTTP.Lucu.Utils -import Prelude hiding (min) +import Control.Applicative +import Data.Ascii (Ascii, AsciiBuilder, CIAscii) +import qualified Data.Ascii as A +import Data.Attoparsec.Char8 as P +import Data.Map (Map) +import Data.Monoid.Unicode +import Data.Text (Text) +import Network.HTTP.Lucu.Parser.Http +import Network.HTTP.Lucu.RFC2231 +import Prelude hiding (min) +import Prelude.Unicode -- |@'MIMEType' \"major\" \"minor\" [(\"name\", \"value\")]@ -- represents \"major\/minor; name=value\". data MIMEType = MIMEType { - mtMajor :: !String - , mtMinor :: !String - , mtParams :: ![ (String, String) ] - } deriving (Eq) - - -instance Show MIMEType where - show (MIMEType maj min params) - = maj ++ "/" ++ min ++ - if null params then - "" - else - "; " ++ joinWith "; " (map showPair params) - where - showPair :: (String, String) -> String - showPair (name, value) - = name ++ "=" ++ if any (not . isToken) value then - quoteStr value - else - value + mtMajor ∷ !CIAscii + , mtMinor ∷ !CIAscii + , mtParams ∷ !(Map CIAscii Text) + } deriving (Eq, Show) +-- |Convert a 'MIMEType' to 'AsciiBuilder'. +printMIMEType ∷ MIMEType → AsciiBuilder +printMIMEType (MIMEType maj min params) + = A.toAsciiBuilder (A.fromCIAscii maj) ⊕ + A.toAsciiBuilder "/" ⊕ + A.toAsciiBuilder (A.fromCIAscii min) ⊕ + printParams params -instance Read MIMEType where - readsPrec _ s = [(parseMIMEType s, "")] - --- |Parse 'MIMEType' from a 'Prelude.String'. This function throws an +-- |Parse 'MIMEType' from an 'Ascii'. This function throws an -- exception for parse error. -parseMIMEType :: String -> MIMEType -parseMIMEType str = case parseStr mimeTypeP str of - (# Success t, r #) -> if B.null r - then t - else error ("unparsable MIME Type: " ++ str) - (# _ , _ #) -> error ("unparsable MIME Type: " ++ str) - +parseMIMEType ∷ Ascii → MIMEType +parseMIMEType str + = let p = do t ← mimeTypeP + endOfInput + return t + bs = A.toByteString str + in + case parseOnly p bs of + Right t → t + Left err → error ("unparsable MIME Type: " ⧺ A.toString str ⧺ ": " ⧺ err) -mimeTypeP :: Parser MIMEType -mimeTypeP = allowEOF $! - do maj <- token - _ <- char '/' - min <- token - params <- many paramP +mimeTypeP ∷ Parser MIMEType +mimeTypeP = do maj ← A.toCIAscii <$> token + _ ← char '/' + min ← A.toCIAscii <$> token + params ← paramsP return $ MIMEType maj min params - where - paramP :: Parser (String, String) - paramP = do _ <- many lws - _ <- char ';' - _ <- many lws - name <- token - _ <- char '=' - value <- token <|> quotedStr - return (name, value) -mimeTypeListP :: Parser [MIMEType] -mimeTypeListP = allowEOF $! listOf mimeTypeP +mimeTypeListP ∷ Parser [MIMEType] +mimeTypeListP = listOf mimeTypeP