The attoparsec branch. It doesn't even compile for now.

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

diff --git a/Network/HTTP/Lucu/MIMEType.hs b/Network/HTTP/Lucu/MIMEType.hs
index a3f3fc5453ff77ee9436b347da9ee94c46879296..88a2eeffde0ad8e7e673af93c425f506c6d5706e 100644 (file)
--- a/Network/HTTP/Lucu/MIMEType.hs
+++ b/Network/HTTP/Lucu/MIMEType.hs
@@ -8,44 +8,49 @@
 module Network.HTTP.Lucu.MIMEType
     ( MIMEType(..)
     , parseMIMEType
+    , printMIMEType
+
     , mimeTypeP
     , mimeTypeListP
     )
     where
-
+import Data.Ascii (Ascii, CIAscii)
+import qualified Data.Ascii as A
 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 Network.HTTP.Lucu.Parser.Http
+import Network.HTTP.Lucu.Utils
+import Prelude hiding (min)
 
 -- |@'MIMEType' \"major\" \"minor\" [(\"name\", \"value\")]@
 -- represents \"major\/minor; name=value\".
 data MIMEType = MIMEType {
-      mtMajor  :: !String
-    , mtMinor  :: !String
-    , mtParams :: ![ (String, String) ]
-    } deriving (Eq)
-
+      mtMajor  :: !CIAscii
+    , mtMinor  :: !CIAscii
+    , mtParams :: ![ (CIAscii, Ascii) ]
+    } deriving (Eq, Show)
 
-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
-
-
-instance Read MIMEType where
-    readsPrec _ s = [(parseMIMEType s, "")]
+-- |Convert a 'MIMEType' to 'Ascii'.
+printMIMEType ∷ MIMEType → Ascii
+printMIMEType (MIMEType maj min params)
+    = A.fromAsciiBuilder $
+      ( A.toAsciiBuilder maj ⊕
+        A.toAsciiBuilder "/" ⊕
+        A.toAsciiBuilder 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 any ((¬) ∘ isToken) value then
+                quoteStr value
+            else
+                A.toAsciiBuilder value
 
 -- |Parse 'MIMEType' from a 'Prelude.String'. This function throws an
 -- exception for parse error.