, text
, separator
, quotedStr
+ , qvalue
)
where
-import qualified Data.ByteString.Lazy.Char8 as B
-import Data.ByteString.Lazy.Char8 (ByteString)
import Data.List
import Network.HTTP.Lucu.Parser
--- |@'isCtl' c@ is True iff @0x20 <= @c@ < 0x7F@.
+-- |@'isCtl' c@ is False iff @0x20 <= @c@ < 0x7F@.
isCtl :: Char -> Bool
isCtl c
| c < '\x1f' = True
| c >= '\x7f' = True
- | otherwise = False
+ | otherwise = False
-- |@'isSeparator' c@ is True iff c is one of HTTP separators.
isSeparator :: Char -> Bool
-isSeparator c = elem c "()<>@,;:\\\"/[]?={} \t"
+isSeparator '(' = True
+isSeparator ')' = True
+isSeparator '<' = True
+isSeparator '>' = True
+isSeparator '@' = True
+isSeparator ',' = True
+isSeparator ';' = True
+isSeparator ':' = True
+isSeparator '\\' = True
+isSeparator '"' = True
+isSeparator '/' = True
+isSeparator '[' = True
+isSeparator ']' = True
+isSeparator '?' = True
+isSeparator '=' = True
+isSeparator '{' = True
+isSeparator '}' = True
+isSeparator ' ' = True
+isSeparator '\t' = True
+isSeparator _ = False
-- |@'isChar' c@ is True iff @c <= 0x7f@.
isChar :: Char -> Bool
-- |@'isToken' c@ is equivalent to @not ('isCtl' c || 'isSeparator'
-- c)@
isToken :: Char -> Bool
-isToken c = not (isCtl c || isSeparator c)
+isToken c = c `seq`
+ not (isCtl c || isSeparator c)
-- |@'listOf' p@ is similar to @'Network.HTTP.Lucu.Parser.sepBy' p
-- ('Network.HTTP.Lucu.Parser.char' \',\')@ but it allows any
-- occurrences of LWS before and after each tokens.
listOf :: Parser a -> Parser [a]
-listOf p = do many lws
- sepBy p (do many lws
- char ','
- many lws)
+listOf p = p `seq`
+ 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'@
token :: Parser String
-token = many1 $ satisfy isToken
+token = many1 $! satisfy isToken
-- |'lws' is an HTTP LWS: @'Network.HTTP.Lucu.Parser.crlf'?
-- ('Network.HTTP.Lucu.Parser.sp' | 'Network.HTTP.Lucu.Parser.ht')+@
quotedPair = do q <- char '\\'
c <- satisfy isChar
return [c]
+
+-- |'qvalue' accepts a so-called qvalue.
+qvalue :: Parser Double
+qvalue = do x <- char '0'
+ xs <- option ""
+ $ do x <- char '.'
+ xs <- many digit -- 本當は三文字までに制限
+ return (x:xs)
+ return $ read (x:xs)
+ <|>
+ do x <- char '1'
+ xs <- option ""
+ $ do x <- char '.'
+ xs <- many (char '0') -- 本當は三文字までに制限
+ return (x:xs)
+ return $ read (x:xs)