Use base64-bytestring instead of dataenc

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

diff --git a/Network/HTTP/Lucu/HttpVersion.hs b/Network/HTTP/Lucu/HttpVersion.hs
index 88dc24e5b61673726da5f31e70d184e42b9cf48f..d48f6ec8c58f3d5009c3038ed500eb4e863e5003 100644 (file)
--- a/Network/HTTP/Lucu/HttpVersion.hs
+++ b/Network/HTTP/Lucu/HttpVersion.hs
@@ -1,15 +1,28 @@
+{-# LANGUAGE
+    BangPatterns
+  , UnicodeSyntax
+  #-}
+{-# OPTIONS_HADDOCK prune #-}
+
+-- |Manipulation of HTTP version string.
 module Network.HTTP.Lucu.HttpVersion
     ( HttpVersion(..)
-    , httpVersionP -- Parser HttpVersion
+    , httpVersionP
+    , hPutHttpVersion
     )
     where
 
-import qualified Data.ByteString.Lazy.Char8 as B
-import           Data.ByteString.Lazy.Char8 (ByteString)
+import qualified Data.ByteString.Char8 as C8
+import           Network.HTTP.Lucu.HandleLike
 import           Network.HTTP.Lucu.Parser
+import           Prelude hiding (min)
+
+-- |@'HttpVersion' major minor@ represents \"HTTP\/major.minor\".
+data HttpVersion = HttpVersion !Int !Int
+                   deriving (Eq)
 
-data HttpVersion = HttpVersion Int Int
-                   deriving (Show, Eq)
+instance Show HttpVersion where
+    show (HttpVersion maj min) = "HTTP/" ++ show maj ++ "." ++ show min
 
 instance Ord HttpVersion where
     (HttpVersion majA minA) `compare` (HttpVersion majB minB)
@@ -21,9 +34,28 @@ instance Ord HttpVersion where
 
 
 httpVersionP :: Parser HttpVersion
-httpVersionP = do string "HTTP/"
-                  major <- many1 digit
-                  char '.'
-                  minor <- many1 digit
-                  return $ HttpVersion (read major) (read minor)
+httpVersionP = string "HTTP/"
+               >>
+               -- 頻出するので高速化
+               choice [ string "1.0" >> return (HttpVersion 1 0)
+                      , string "1.1" >> return (HttpVersion 1 1)
+                        -- 一般の場合
+                      , do major <- many1 digit
+                           _     <- char '.'
+                           minor <- many1 digit
+                           return $ HttpVersion (read major) (read minor)
+                      ]
+
 
+hPutHttpVersion :: HandleLike h => h -> HttpVersion -> IO ()
+hPutHttpVersion !h !v
+    = case v of
+        -- 頻出するので高速化
+        HttpVersion 1 0 -> hPutBS h (C8.pack "HTTP/1.0")
+        HttpVersion 1 1 -> hPutBS h (C8.pack "HTTP/1.1")
+        -- 一般の場合
+        HttpVersion !maj !min
+            -> do hPutBS   h (C8.pack "HTTP/")
+                  hPutStr  h (show maj)
+                  hPutChar h '.'
+                  hPutStr  h (show min)