X-Git-Url: http://git.cielonegro.org/gitweb.cgi?a=blobdiff_plain;f=Network%2FHTTP%2FLucu%2FParser.hs;h=ac1bf02734f0a09485eddf924002f8d4fc27b88e;hb=b1fac0a2cb1cafa008c0efa8ae4e14afbee0927f;hp=6b935c8aed2af35805f257a26f25de44e95b6a4f;hpb=ece223c516e66223ef1d5d8e6bbe4054a235d983;p=Lucu.git

diff --git a/Network/HTTP/Lucu/Parser.hs b/Network/HTTP/Lucu/Parser.hs
index 6b935c8..ac1bf02 100644
--- a/Network/HTTP/Lucu/Parser.hs
+++ b/Network/HTTP/Lucu/Parser.hs
@@ -1,97 +1,30 @@
 {-# LANGUAGE
-    BangPatterns
-  , ScopedTypeVariables
-  , UnicodeSyntax
+    UnicodeSyntax
   #-}
 -- |This is an auxiliary parser utilities. You usually don't have to
 -- use this module directly.
 module Network.HTTP.Lucu.Parser
     ( atMost
-    , manyOctetsTill
+    , finishOff
     )
     where
-import Blaze.ByteString.Builder (Builder, Write)
-import qualified Blaze.ByteString.Builder as BB
-import qualified Blaze.ByteString.Builder.Internal as BI
 import Control.Applicative
-import Control.Applicative.Unicode hiding ((∅))
+import Control.Applicative.Unicode
 import Control.Monad.Unicode
-import qualified Data.ByteString as BS
-import qualified Data.ByteString.Lazy as LS
-import Data.Monoid
-import Data.Monoid.Unicode
-import Data.Word
+import Data.Attoparsec
 import Prelude.Unicode
 
 -- |@'atMost' n v@ is like @'P.many' v@ but accumulates @v@ at most
 -- @n@ times.
-atMost ∷ Alternative f ⇒ Int → f a → f [a]
+atMost ∷ Alternative f ⇒ Int → f α → f [α]
 {-# INLINE atMost #-}
 atMost 0 _ = pure []
 atMost n v = ( (:) <$> v ⊛ atMost (n-1) v )
              <|>
              pure []
 
-data OctetAccumState
-    = OctetAccumState {
-        casChunks    ∷ !Builder
-      , casLastChunk ∷ !Write
-      }
-
-instance Monoid OctetAccumState where
-    {-# INLINE mempty #-}
-    mempty
-        = OctetAccumState {
-            casChunks    = (∅)
-          , casLastChunk = (∅)
-          }
-    {-# INLINEABLE mappend #-}
-    mappend !a !b
-        = b {
-            casChunks = casChunks a ⊕ lastChunk a ⊕ casChunks b
-          }
-
-lastChunk ∷ OctetAccumState → Builder
-{-# INLINEABLE lastChunk #-}
-lastChunk !s = case toChunk s of
-                 c → BB.insertByteString c
-    where
-      toChunk ∷ OctetAccumState → BS.ByteString
-      {-# INLINE toChunk #-}
-      toChunk = BB.toByteString ∘ BB.fromWrite ∘ casLastChunk
-
-snoc ∷ OctetAccumState → Word8 → OctetAccumState
-{-# INLINEABLE snoc #-}
-snoc !s !o
-    | BI.getBound (casLastChunk s) ≥ BI.defaultBufferSize
-        = s {
-            casChunks    = casChunks s ⊕ lastChunk s
-          , casLastChunk = BB.writeWord8 o
-          }
-    | otherwise
-        = s {
-            casLastChunk = casLastChunk s ⊕ BB.writeWord8 o
-          }
-
-finish ∷ OctetAccumState → LS.ByteString
-{-# INLINEABLE finish #-}
-finish = BB.toLazyByteString ∘ toChunks
-    where
-      toChunks ∷ OctetAccumState → Builder
-      {-# INLINE toChunks #-}
-      toChunks !s = casChunks s ⊕ lastChunk s
-
--- |@'manyOctetsTill' p end@ takes as many octets untill @p@ succeeds.
-manyOctetsTill ∷ ∀m b. (Monad m, Alternative m)
-              ⇒ m Word8
-              → m b
-              → m LS.ByteString
-{-# INLINEABLE manyOctetsTill #-}
-manyOctetsTill p end = scan (∅)
-    where
-      scan ∷ OctetAccumState → m LS.ByteString
-      {-# INLINE scan #-}
-      scan !s
-          = (end *> pure (finish s))
-            <|>
-            (scan =≪ (snoc s <$> p))
+-- |@'finishOff' p@ is equivalent to @p '>>=' \\a -> 'endOfInput' '>>'
+-- 'return' a@.
+finishOff ∷ Parser α → Parser α
+{-# INLINE finishOff #-}
+finishOff = ((endOfInput *>) ∘ return =≪)