X-Git-Url: http://git.cielonegro.org/gitweb.cgi?a=blobdiff_plain;f=Network%2FHTTP%2FLucu%2FMIMEType.hs;h=da4f503b33e838207e4cc27d380b302e21e79e87;hb=078fc2851ceae061fe368f2bc09fcd16d67ae00f;hp=9f653230d3597ae298cdeec99fca07276242b9f6;hpb=858129cb755aa09da2b7bd758efb8519f2c89103;p=Lucu.git

diff --git a/Network/HTTP/Lucu/MIMEType.hs b/Network/HTTP/Lucu/MIMEType.hs
index 9f65323..da4f503 100644
--- a/Network/HTTP/Lucu/MIMEType.hs
+++ b/Network/HTTP/Lucu/MIMEType.hs
@@ -3,14 +3,13 @@
 -- |Manipulation of MIME Types.
 module Network.HTTP.Lucu.MIMEType
     ( MIMEType(..)
-    , (</>)
-    , (<:>)
-    , (<=>)
+    , parseMIMEType
     , 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
@@ -40,31 +39,17 @@ instance Show MIMEType where
                                    value
 
 
-infix  9 </>, <=>
-infixl 8 <:>
+instance Read MIMEType where
+    readsPrec _ s = [(parseMIMEType s, "")]
 
--- |@\"major\" \<\/\> \"minor\"@ constructs a MIME Type
--- \"major\/minor\".
-(</>) :: String -> String -> MIMEType
-maj </> min
-    = MIMEType maj min []
-
--- |This operator appends a @(name, value)@ pair to a MIME Type.
-(<:>) :: MIMEType -> (String, String) -> MIMEType
-mt@(MIMEType _ _ params) <:> pair
-    = pair `seq`
-      mt {
-        mtParams = mtParams mt ++ [pair]
-      }
-
--- |This operator takes two strings and makes a tuple of them. So you
--- can say
---
--- > "text" </> "xml" <:> "charset" <=> "UTF-8" <:> "q" <=> "0.9"
---
--- to represent \"text\/xml; charset=UTF-8; q=0.9\".
-(<=>) :: String -> String -> (String, String)
-name <=> value = (name, value)
+-- |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, r #) -> if B.null r
+                                            then t
+                                            else error ("unparsable MIME Type: " ++ str)
+                      (# _        , _ #) -> error ("unparsable MIME Type: " ++ str)
 
 
 mimeTypeP :: Parser MIMEType