- 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
-
-
-infix 9 +/+, +=+
-infixl 8 +:+
-
-
-(+/+) :: String -> String -> MIMEType
-maj +/+ min
- = MIMEType maj min []
-
-
-(+:+) :: MIMEType -> (String, String) -> MIMEType
-mt@(MIMEType _ _ params) +:+ pair
- = mt {
- mtParams = mtParams mt ++ [pair]
- }
-
-
-(+=+) :: String -> String -> (String, String)
-name +=+ value = (name, value)
-
-
-
-mimeTypeP :: Parser MIMEType
-mimeTypeP = allowEOF $
- do maj <- token
- char '/'
- min <- token
- params <- many paramP
+ mtMajor ∷ !CIAscii
+ , mtMinor ∷ !CIAscii
+ , mtParams ∷ ![ (CIAscii, Ascii) ]
+ } deriving (Eq, Show)
+
+-- |Convert a 'MIMEType' to 'Ascii'.
+printMIMEType ∷ MIMEType → Ascii
+printMIMEType (MIMEType maj min params)
+ = A.fromAsciiBuilder $
+ ( A.toAsciiBuilder (A.fromCIAscii maj) ⊕
+ A.toAsciiBuilder "/" ⊕
+ A.toAsciiBuilder (A.fromCIAscii min) ⊕
+ if null params then
+ (∅)
+ else
+ A.toAsciiBuilder "; " ⊕
+ joinWith "; " (map printPair params)
+ )
+ where
+ printPair ∷ (CIAscii, Ascii) → A.AsciiBuilder
+ printPair (name, value)
+ = A.toAsciiBuilder (A.fromCIAscii name) ⊕
+ A.toAsciiBuilder "=" ⊕
+ if C8.any ((¬) ∘ isToken) (A.toByteString value) then
+ quoteStr value
+ else
+ A.toAsciiBuilder value
+
+-- |Parse 'MIMEType' from an 'Ascii'. This function throws an
+-- exception for parse error.
+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: " ⧺ C8.unpack bs ⧺ ": " ⧺ err)
+
+mimeTypeP ∷ Parser MIMEType
+mimeTypeP = try $
+ do maj ← A.toCIAscii <$> token
+ _ ← char '/'
+ min ← A.toCIAscii <$> token
+ params ← P.many paramP