X-Git-Url: http://git.cielonegro.org/gitweb.cgi?a=blobdiff_plain;f=Network%2FHTTP%2FLucu%2FMIMEType.hs;h=e28238e53297237f633dc4bcca4f581f4f0f102f;hb=1196f43ecedbb123515065f0440844864af906fb;hp=b41bbcd50f07b9857625e08ac7dda9107faef95a;hpb=30fcb38426696db8b80d322196cc594431e30407;p=Lucu.git diff --git a/Network/HTTP/Lucu/MIMEType.hs b/Network/HTTP/Lucu/MIMEType.hs index b41bbcd..e28238e 100644 --- a/Network/HTTP/Lucu/MIMEType.hs +++ b/Network/HTTP/Lucu/MIMEType.hs @@ -1,26 +1,26 @@ --- #prune +{-# OPTIONS_HADDOCK prune #-} -- |Manipulation of MIME Types. module Network.HTTP.Lucu.MIMEType ( MIMEType(..) - , () - , (<:>) - , (<=>) + , parseMIMEType , mimeTypeP , mimeTypeListP ) where +import qualified Data.ByteString.Lazy as B import Network.HTTP.Lucu.Parser import Network.HTTP.Lucu.Parser.Http import Network.HTTP.Lucu.Utils +import Prelude hiding (min) -- |@'MIMEType' \"major\" \"minor\" [(\"name\", \"value\")]@ -- represents \"major\/minor; name=value\". data MIMEType = MIMEType { - mtMajor :: String - , mtMinor :: String - , mtParams :: [ (String, String) ] + mtMajor :: !String + , mtMinor :: !String + , mtParams :: ![ (String, String) ] } deriving (Eq) @@ -40,34 +40,21 @@ instance Show MIMEType where value -infix 9 , <=> -infixl 8 <:> +instance Read MIMEType where + readsPrec _ s = [(parseMIMEType s, "")] --- |@\"major\" \<\/\> \"minor\"@ constructs a MIME Type --- \"major\/minor\". -() :: String -> String -> MIMEType -maj min - = MIMEType maj min [] - --- |This operator appends a @(name, value)@ pair to a MIME Type. -(<:>) :: MIMEType -> (String, String) -> MIMEType -mt@(MIMEType _ _ params) <:> pair - = mt { - mtParams = mtParams mt ++ [pair] - } - --- |This operator takes two strings and makes a tuple of them. So you --- can say --- --- > "text" "xml" <:> "charset" <=> "UTF-8" <:> "q" <=> "0.9" --- --- to represent \"text\/xml; charset=UTF-8; q=0.9\". -(<=>) :: String -> String -> (String, String) -name <=> value = (name, value) +-- |Parse 'MIMEType' from a 'Prelude.String'. This function throws an +-- exception for parse error. +parseMIMEType :: String -> MIMEType +parseMIMEType str = case parseStr mimeTypeP str of + (# Success t, r #) -> if B.null r + then t + else error ("unparsable MIME Type: " ++ str) + (# _ , _ #) -> error ("unparsable MIME Type: " ++ str) mimeTypeP :: Parser MIMEType -mimeTypeP = allowEOF $ +mimeTypeP = allowEOF $! do maj <- token char '/' min <- token @@ -84,4 +71,4 @@ mimeTypeP = allowEOF $ return (name, value) mimeTypeListP :: Parser [MIMEType] -mimeTypeListP = allowEOF $ listOf mimeTypeP +mimeTypeListP = allowEOF $! listOf mimeTypeP