Code clean-up using convertible-text

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

diff --git a/Network/HTTP/Lucu/MIMEType.hs b/Network/HTTP/Lucu/MIMEType.hs
index 9f2cb87739364af2d434d7b36aea40ddc87d4e1f..68e9b255e54b0d1fdac608b97cd54ccbb28b5481 100644 (file)
--- a/Network/HTTP/Lucu/MIMEType.hs
+++ b/Network/HTTP/Lucu/MIMEType.hs
@@ -1,92 +1,85 @@
 {-# LANGUAGE
-    OverloadedStrings
+    DeriveDataTypeable
+  , OverloadedStrings
+  , RecordWildCards
+  , TemplateHaskell
   , UnicodeSyntax
   #-}
-{-# OPTIONS_HADDOCK prune #-}
-
--- |Manipulation of MIME Types.
+-- |Parsing and printing MIME Media Types
+-- (<http://tools.ietf.org/html/rfc2046>).
 module Network.HTTP.Lucu.MIMEType
     ( MIMEType(..)
+
     , parseMIMEType
     , printMIMEType
 
-    , mimeTypeP
-    , mimeTypeListP
+    , mimeType
+    , mimeTypeList
     )
     where
 import Control.Applicative
-import Data.Ascii (Ascii, CIAscii)
+import Data.Ascii (Ascii, AsciiBuilder, CIAscii)
 import qualified Data.Ascii as A
 import Data.Attoparsec.Char8 as P
-import qualified Data.ByteString.Char8 as C8
-import Data.Map (Map)
+import Data.Convertible.Base
+import Data.Convertible.Instances.Ascii ()
+import Data.Convertible.Utils
 import Data.Monoid.Unicode
-import Data.Text (Text)
+import Data.Typeable
+import Language.Haskell.TH.Syntax
+import Network.HTTP.Lucu.MIMEParams
+import Network.HTTP.Lucu.OrphanInstances ()
+import Network.HTTP.Lucu.Parser
 import Network.HTTP.Lucu.Parser.Http
-import Network.HTTP.Lucu.Utils
-import Prelude hiding (min)
 import Prelude.Unicode
 
--- |@'MIMEType' \"major\" \"minor\" [(\"name\", \"value\")]@
--- represents \"major\/minor; name=value\".
-data MIMEType = MIMEType {
-      mtMajor  ∷ !CIAscii
-    , mtMinor  ∷ !CIAscii
-    , mtParams ∷ !(Map CIAscii Text)
-    } deriving (Eq, Show)
+-- |A media type, subtype, and parameters.
+data MIMEType
+    = MIMEType {
+        mtMedia  ∷ !CIAscii
+      , mtSub    ∷ !CIAscii
+      , mtParams ∷ !MIMEParams
+      }
+    deriving (Eq, Show, Read, Typeable)
 
--- |Convert a 'MIMEType' to 'Ascii'.
-printMIMEType ∷ MIMEType → Ascii
-printMIMEType (MIMEType maj min params)
-    = A.fromAsciiBuilder $
-      ( A.toAsciiBuilder (A.fromCIAscii maj) ⊕
-        A.toAsciiBuilder "/" ⊕
-        A.toAsciiBuilder (A.fromCIAscii min) ⊕
-        if null params then
-            (∅)
-        else
-            A.toAsciiBuilder "; " ⊕
-            joinWith "; " (map printPair params)
-      )
-    where
-      printPair ∷ (CIAscii, Ascii) → A.AsciiBuilder
-      printPair (name, value)
-          = A.toAsciiBuilder (A.fromCIAscii name) ⊕
-            A.toAsciiBuilder "=" ⊕
-            if C8.any ((¬) ∘ isToken) (A.toByteString value) then
-                quoteStr value
-            else
-                A.toAsciiBuilder value
+instance Lift MIMEType where
+    lift (MIMEType {..})
+        = [| MIMEType {
+               mtMedia  = $(lift mtMedia )
+             , mtSub    = $(lift mtSub   )
+             , mtParams = $(lift mtParams)
+             }
+           |]
+
+-- |Convert a 'MIMEType' to an 'AsciiBuilder'.
+printMIMEType ∷ MIMEType → AsciiBuilder
+{-# INLINEABLE printMIMEType #-}
+printMIMEType (MIMEType {..})
+    = A.toAsciiBuilder (A.fromCIAscii mtMedia) ⊕
+      A.toAsciiBuilder "/" ⊕
+      A.toAsciiBuilder (A.fromCIAscii mtSub) ⊕
+      cs mtParams
 
 -- |Parse 'MIMEType' from an 'Ascii'. This function throws an
--- exception for parse error.
+-- exception for parse error. For literals consider using
+-- 'Network.HTTP.Lucu.MIMEType.TH.mimeType'.
 parseMIMEType ∷ Ascii → MIMEType
+{-# INLINEABLE parseMIMEType #-}
 parseMIMEType str
-    = let p  = do t ← mimeTypeP
-                  endOfInput
-                  return t
-          bs = A.toByteString str
-      in
-        case parseOnly p bs of
-          Right  t → t
-          Left err → error ("unparsable MIME Type: " ⧺ C8.unpack bs ⧺ ": " ⧺ err)
+    = case parseOnly (finishOff mimeType) $ A.toByteString str of
+        Right  t → t
+        Left err → error ("Unparsable MIME Type: " ⧺ A.toString str ⧺ ": " ⧺ err)
 
-mimeTypeP ∷ Parser MIMEType
-mimeTypeP = do maj    ← A.toCIAscii <$> token
-               _      ← char '/'
-               min    ← A.toCIAscii <$> token
-               params ← P.many paramP
-               return $ MIMEType maj min params
-    where
-      paramP ∷ Parser (CIAscii, Ascii)
-      paramP = try $
-               do skipMany lws
-                  _     ← char ';'
-                  skipMany lws
-                  name  ← A.toCIAscii <$> token
-                  _     ← char '='
-                  value ← token <|> quotedStr
-                  return (name, value)
+-- |'Parser' for an 'MIMEType'.
+mimeType ∷ Parser MIMEType
+{-# INLINEABLE mimeType #-}
+mimeType = do media  ← A.toCIAscii <$> token
+              _      ← char '/'
+              sub    ← A.toCIAscii <$> token
+              params ← mimeParams
+              return $ MIMEType media sub params
 
-mimeTypeListP ∷ Parser [MIMEType]
-mimeTypeListP = listOf mimeTypeP
+-- |'Parser' for a list of 'MIMEType's.
+mimeTypeList ∷ Parser [MIMEType]
+{-# INLINE mimeTypeList #-}
+mimeTypeList = listOf mimeType