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

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

diff --git a/Network/HTTP/Lucu/ContentCoding.hs b/Network/HTTP/Lucu/ContentCoding.hs
index 27a89415a0d9e1e420ba7f57cd00815c594abb4a..7a0918a8fd364dde1862ffcbb919de12550f488b 100644 (file)
--- a/Network/HTTP/Lucu/ContentCoding.hs
+++ b/Network/HTTP/Lucu/ContentCoding.hs
@@ -1,48 +1,63 @@
+{-# LANGUAGE
+    OverloadedStrings
+  , UnicodeSyntax
+  #-}
 module Network.HTTP.Lucu.ContentCoding
-    ( acceptEncodingListP
+    ( AcceptEncoding(..)
+
+    , acceptEncodingListP
     , normalizeCoding
     , unnormalizeCoding
-    , orderAcceptEncodings
     )
     where
-
-import           Data.Char
-import           Data.Ord
-import           Data.Maybe
-import           Network.HTTP.Lucu.Parser
-import           Network.HTTP.Lucu.Parser.Http
-
-
-acceptEncodingListP :: Parser [(String, Maybe Double)]
-acceptEncodingListP = allowEOF $! listOf accEncP
-
-      
-accEncP :: Parser (String, Maybe Double)
-accEncP = do coding <- token
-             qVal   <- option Nothing
-                       $ do _ <- string ";q="
-                            q <- qvalue
-                            return $ Just q
+import Control.Applicative
+import Data.Ascii (CIAscii, toCIAscii)
+import Data.Attoparsec.Char8
+import Data.Ord
+import Data.Maybe
+import Network.HTTP.Lucu.Parser.Http
+import Prelude.Unicode
+
+data AcceptEncoding
+    = AcceptEncoding !CIAscii !(Maybe Double)
+      deriving (Eq, Show)
+
+instance Ord AcceptEncoding where
+    (AcceptEncoding c1 q1) `compare` (AcceptEncoding c2 q2)
+        | q1' > q1' = GT
+        | q1' < q2' = LT
+        | otherwise = compare c1 c2
+        where
+          q1' = fromMaybe 0 q1
+          q2' = fromMaybe 0 q2
+
+acceptEncodingListP ∷ Parser [(CIAscii, Maybe Double)]
+acceptEncodingListP = listOf accEncP
+
+accEncP ∷ Parser (CIAscii, Maybe Double)
+accEncP = do coding ← toCIAscii <$> token
+             qVal   ← option Nothing
+                      $ do _ ← string ";q="
+                           q ← qvalue
+                           return $ Just q
              return (normalizeCoding coding, qVal)
 
-
-normalizeCoding :: String -> String
+normalizeCoding ∷ CIAscii → CIAscii
 normalizeCoding coding
-    = case map toLower coding of
-        "x-gzip"     -> "gzip"
-        "x-compress" -> "compress"
-        other        -> other
-
-
-unnormalizeCoding :: String -> String
+    = if coding ≡ "x-gzip" then
+          "gzip"
+      else
+          if coding ≡ "x-compress" then
+              "compress"
+          else
+              coding
+
+unnormalizeCoding ∷ CIAscii → CIAscii
 unnormalizeCoding coding
-    = case map toLower coding of
-        "gzip"     -> "x-gzip"
-        "compress" -> "x-compress"
-        other        -> other
-
-
-orderAcceptEncodings :: (String, Maybe Double) -> (String, Maybe Double) -> Ordering
-orderAcceptEncodings (_, q1) (_, q2)
-    = comparing (fromMaybe 0) q1 q2
-
+    = if coding ≡ "gzip" then
+          "x-gzip"
+      else
+          if coding ≡ "compress" then
+              "x-compress"
+          else
+              coding