Say good bye to the ugliness of "text" </> "plain".

[Lucu.git] / Network / HTTP / Lucu / MIMEType.hs

diff --git a/Network/HTTP/Lucu/MIMEType.hs b/Network/HTTP/Lucu/MIMEType.hs
index bd799e0d58f840dc9cb700be51e33e19e6496057..396a1646dbe7a5b297c2d27c8f1b834b37131b4c 100644 (file)
--- a/Network/HTTP/Lucu/MIMEType.hs
+++ b/Network/HTTP/Lucu/MIMEType.hs
@@ -1,10 +1,11 @@
+-- #prune
+
+-- |Manipulation of MIME Types.
 module Network.HTTP.Lucu.MIMEType
     ( MIMEType(..)
-    , (+/+)         -- String -> String -> MIMEType
-    , (+:+)         -- MIMEType -> (String, String) -> MIMEType
-    , (+=+)         -- String -> String -> (String, String)
-    , mimeTypeP     -- Parser MIMEType
-    , mimeTypeListP -- Parser [MIMEType]
+    , parseMIMEType
+    , mimeTypeP
+    , mimeTypeListP
     )
     where
 
@@ -12,11 +13,12 @@ import           Network.HTTP.Lucu.Parser
 import           Network.HTTP.Lucu.Parser.Http
 import           Network.HTTP.Lucu.Utils
 
-
+-- |@'MIMEType' \"major\" \"minor\" [(\"name\", \"value\")]@
+-- represents \"major\/minor; name=value\".
 data MIMEType = MIMEType {
-      mtMajor  :: String
-    , mtMinor  :: String
-    , mtParams :: [ (String, String) ]
+      mtMajor  :: !String
+    , mtMinor  :: !String
+    , mtParams :: ![ (String, String) ]
     } deriving (Eq)
 
 
@@ -36,29 +38,19 @@ instance Show MIMEType where
                                    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)
+instance Read MIMEType where
+    readsPrec _ s = [(parseMIMEType s, "")]
 
+-- |Parse 'MIMEType' from a 'Prelude.String'. This function throws an
+-- exception for parse error.
+parseMIMEType :: String -> MIMEType
+parseMIMEType str = case parseStr mimeTypeP str of
+                      (Success t, _) -> t
+                      _              -> error ("Unparsable MIME Type: " ++ str)
 
 
 mimeTypeP :: Parser MIMEType
-mimeTypeP = allowEOF $
+mimeTypeP = allowEOF $!
             do maj <- token
                char '/'
                min <- token
@@ -75,4 +67,4 @@ mimeTypeP = allowEOF $
                   return (name, value)
 
 mimeTypeListP :: Parser [MIMEType]
-mimeTypeListP = allowEOF $ listOf mimeTypeP
+mimeTypeListP = allowEOF $! listOf mimeTypeP