Suppress unused-do-bind warnings which GHC 6.12.1 emits

[Lucu.git] / Network / HTTP / Lucu / Parser / Http.hs

diff --git a/Network/HTTP/Lucu/Parser/Http.hs b/Network/HTTP/Lucu/Parser/Http.hs
index f6c80dc8072f65abb76deec29c6fc0f6addc476f..78e48181c9f251023b4c11f88630e8b26b85e1d1 100644 (file)
--- a/Network/HTTP/Lucu/Parser/Http.hs
+++ b/Network/HTTP/Lucu/Parser/Http.hs
@@ -17,7 +17,6 @@ module Network.HTTP.Lucu.Parser.Http
     )
     where
 
-import           Data.List
 import           Network.HTTP.Lucu.Parser
 
 -- |@'isCtl' c@ is 'Prelude.False' iff @0x20 <= @c@ < 0x7F@.
@@ -67,11 +66,10 @@ isToken c = c `seq`
 -- ('Network.HTTP.Lucu.Parser.char' \',\')@ but it allows any
 -- occurrences of LWS before and after each tokens.
 listOf :: Parser a -> Parser [a]
-listOf p = p `seq`
-           do many lws
-              sepBy p $! do many lws
-                            char ','
-                            many lws
+listOf !p = do _ <- many lws
+               sepBy p $! do _ <- many lws
+                             _ <- char ','
+                             many lws
 
 -- |'token' is equivalent to @'Network.HTTP.Lucu.Parser.many1' $
 -- 'Network.HTTP.Lucu.Parser.satisfy' 'isToken'@
@@ -96,15 +94,15 @@ separator = satisfy isSeparator
 -- |'quotedStr' accepts a string surrounded by double quotation
 -- marks. Quotes can be escaped by backslashes.
 quotedStr :: Parser String
-quotedStr = do char '"'
+quotedStr = do _  <- char '"'
                xs <- many (qdtext <|> quotedPair)
-               char '"'
+               _  <- char '"'
                return $ foldr (++) "" xs
     where
       qdtext = do c <- satisfy (/= '"')
                   return [c]
 
-      quotedPair = do char '\\'
+      quotedPair = do _ <- char '\\'
                       c <- satisfy isChar
                       return [c]