Destroy Data.Attoparsec.Parsable; use Data.Default instead

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

diff --git a/Network/HTTP/Lucu/ContentCoding.hs b/Network/HTTP/Lucu/ContentCoding.hs
index 7a0918a8fd364dde1862ffcbb919de12550f488b..45a8b4e7dcd903deed0b9cecf92640c0b17ba7ff 100644 (file)
--- a/Network/HTTP/Lucu/ContentCoding.hs
+++ b/Network/HTTP/Lucu/ContentCoding.hs
@@ -1,11 +1,12 @@
 {-# LANGUAGE
-    OverloadedStrings
+    FlexibleInstances
+  , MultiParamTypeClasses
+  , TypeSynonymInstances
+  , OverloadedStrings
   , UnicodeSyntax
   #-}
 module Network.HTTP.Lucu.ContentCoding
     ( AcceptEncoding(..)
-
-    , acceptEncodingListP
     , normalizeCoding
     , unnormalizeCoding
     )
@@ -13,13 +14,17 @@ module Network.HTTP.Lucu.ContentCoding
 import Control.Applicative
 import Data.Ascii (CIAscii, toCIAscii)
 import Data.Attoparsec.Char8
+import Data.Default
 import Data.Ord
 import Data.Maybe
 import Network.HTTP.Lucu.Parser.Http
 import Prelude.Unicode
 
 data AcceptEncoding
-    = AcceptEncoding !CIAscii !(Maybe Double)
+    = AcceptEncoding {
+        aeEncoding ∷ !CIAscii
+      , aeQValue   ∷ !(Maybe Double)
+      }
       deriving (Eq, Show)
 
 instance Ord AcceptEncoding where
@@ -31,33 +36,29 @@ instance Ord AcceptEncoding where
           q1' = fromMaybe 0 q1
           q2' = fromMaybe 0 q2
 
-acceptEncodingListP ∷ Parser [(CIAscii, Maybe Double)]
-acceptEncodingListP = listOf accEncP
+instance Default (Parser [AcceptEncoding]) where
+    {-# INLINE def #-}
+    def = listOf def
 
-accEncP ∷ Parser (CIAscii, Maybe Double)
-accEncP = do coding ← toCIAscii <$> token
+instance Default (Parser AcceptEncoding) where
+    {-# INLINEABLE def #-}
+    def = do coding ← toCIAscii <$> token
              qVal   ← option Nothing
-                      $ do _ ← string ";q="
-                           q ← qvalue
-                           return $ Just q
-             return (normalizeCoding coding, qVal)
+                          $ do _ ← string ";q="
+                               q ← qvalue
+                               return $ Just q
+             return $ AcceptEncoding (normalizeCoding coding) qVal
 
 normalizeCoding ∷ CIAscii → CIAscii
+{-# INLINEABLE normalizeCoding #-}
 normalizeCoding coding
-    = if coding ≡ "x-gzip" then
-          "gzip"
-      else
-          if coding ≡ "x-compress" then
-              "compress"
-          else
-              coding
+    | coding ≡ "x-gzip"     = "gzip"
+    | coding ≡ "x-compress" = "compress"
+    | otherwise             = coding
 
 unnormalizeCoding ∷ CIAscii → CIAscii
+{-# INLINEABLE unnormalizeCoding #-}
 unnormalizeCoding coding
-    = if coding ≡ "gzip" then
-          "x-gzip"
-      else
-          if coding ≡ "compress" then
-              "x-compress"
-          else
-              coding
+    | coding ≡ "gzip"     = "x-gzip"
+    | coding ≡ "compress" = "x-compress"
+    | otherwise           = coding