X-Git-Url: http://git.cielonegro.org/gitweb.cgi?a=blobdiff_plain;f=Network%2FHTTP%2FLucu%2FHttpVersion.hs;h=2029a7facbaf3e5eec5a1bc42201a74e26ff9151;hb=9668dc27a02b59d7bfb1e9e40af3d2619700ad69;hp=4531c837782ef9b6eda9edd4849e3771f2b0b0a1;hpb=e34910f85f459f049b9e6e6b79db9ef95dfccc13;p=Lucu.git

diff --git a/Network/HTTP/Lucu/HttpVersion.hs b/Network/HTTP/Lucu/HttpVersion.hs
index 4531c83..2029a7f 100644
--- a/Network/HTTP/Lucu/HttpVersion.hs
+++ b/Network/HTTP/Lucu/HttpVersion.hs
@@ -1,23 +1,25 @@
 {-# LANGUAGE
-    BangPatterns
-  , OverloadedStrings
+    OverloadedStrings
   , UnicodeSyntax
   #-}
-{-# OPTIONS_HADDOCK prune #-}
-
--- |Manipulation of HTTP version string.
+-- |HTTP version number
 module Network.HTTP.Lucu.HttpVersion
     ( HttpVersion(..)
+    , printHttpVersion
+
     , httpVersionP
-    , hPutHttpVersion
     )
     where
-import Control.Monad.Unicode
+import qualified Blaze.Text.Int as BT
+import Control.Applicative
+import Control.Applicative.Unicode
+import Data.Ascii (AsciiBuilder)
+import qualified Data.Ascii as A
 import Data.Attoparsec.Char8
-import Network.HTTP.Lucu.HandleLike
+import Data.Monoid.Unicode
 import Prelude hiding (min)
 
--- |@'HttpVersion' major minor@ represents \"HTTP\/major.minor\".
+-- |An HTTP version consists of major and minor versions.
 data HttpVersion
     = HttpVersion !Int !Int
       deriving (Eq, Show)
@@ -30,26 +32,25 @@ instance Ord HttpVersion where
         | minA < minB = LT
         | otherwise   = EQ
 
+-- |Convert an 'HttpVersion' to 'AsciiBuilder'.
+printHttpVersion ∷ HttpVersion → AsciiBuilder
+printHttpVersion v
+    = case v of
+        -- Optimisation for special cases.
+        HttpVersion 1 0 → A.toAsciiBuilder "HTTP/1.0"
+        HttpVersion 1 1 → A.toAsciiBuilder "HTTP/1.1"
+        -- General cases.
+        HttpVersion maj min
+            → A.toAsciiBuilder    "HTTP/"           ⊕
+              A.unsafeFromBuilder (BT.integral maj) ⊕
+              A.toAsciiBuilder    "."               ⊕
+              A.unsafeFromBuilder (BT.integral min)
+
+-- |'Parser' for an 'HttpVersion'.
 httpVersionP ∷ Parser HttpVersion
 httpVersionP = string "HTTP/"
-               ≫
-               choice [ string "1.1" ≫ return (HttpVersion 1 1)
-                      , string "1.0" ≫ return (HttpVersion 1 0)
-                      , do major ← decimal
-                           _     ← char '.'
-                           minor ← decimal
-                           return $ HttpVersion major minor
+               *>
+               choice [ string "1.1" *> pure (HttpVersion 1 1)
+                      , string "1.0" *> pure (HttpVersion 1 0)
+                      , HttpVersion <$> decimal ⊛ (char '.' *> decimal)
                       ]
-
-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 "HTTP/1.0"
-        HttpVersion 1 1 → hPutBS h "HTTP/1.1"
-        -- 一般の場合
-        HttpVersion !maj !min
-            → do hPutBS   h "HTTP/"
-                 hPutStr  h (show maj)
-                 hPutChar h '.'
-                 hPutStr  h (show min)