-{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE
+ OverloadedStrings
+ , UnicodeSyntax
+ #-}
module Data.Time.HTTP.Common
( shortWeekDayName
, shortWeekDayNameP
, longMonthName
, longMonthNameP
- , show2
, show4
+ , show2
+ , show2'
- , read2
, read4
+ , read2
+ , read2'
- , showTZ
+ , show4digitsTZ
, read4digitsTZ
, assertWeekDayIsGood
, assertGregorianDateIsGood
, assertTimeOfDayIsGood
+
+ , optionMaybe
)
where
-
+import Blaze.ByteString.Builder.ByteString as B
+import Blaze.Text.Int as BT
+import Control.Applicative
import Control.Monad
+import Data.Ascii (AsciiBuilder)
+import qualified Data.Ascii as A
+import Data.Attoparsec.Char8 as P
+import Data.Monoid.Unicode
import Data.Fixed
import Data.Time
import Data.Time.Calendar.WeekDate
-import Text.Parsec
+import Prelude.Unicode
-shortWeekDayName :: Int -> String
-shortWeekDayName 1 = "Mon"
-shortWeekDayName 2 = "Tue"
-shortWeekDayName 3 = "Wed"
-shortWeekDayName 4 = "Thu"
-shortWeekDayName 5 = "Fri"
-shortWeekDayName 6 = "Sat"
-shortWeekDayName 7 = "Sun"
-shortWeekDayName n = error ("shortWeekDayName: unknown day number: " ++ show n)
+shortWeekDayName ∷ Num n ⇒ n → AsciiBuilder
+{-# INLINE shortWeekDayName #-}
+shortWeekDayName = A.toAsciiBuilder ∘ go
+ where
+ {-# INLINEABLE go #-}
+ go 1 = "Mon"
+ go 2 = "Tue"
+ go 3 = "Wed"
+ go 4 = "Thu"
+ go 5 = "Fri"
+ go 6 = "Sat"
+ go 7 = "Sun"
+ go n = error ("shortWeekDayName: invalid week day: " ⧺ show n)
-shortWeekDayNameP :: Stream s m Char => ParsecT s u m Int
+shortWeekDayNameP ∷ Num n ⇒ Parser n
+{-# INLINEABLE shortWeekDayNameP #-}
shortWeekDayNameP
- = choice [ string "Mon" >> return 1
+ = choice [ string "Mon" *> return 1
, char 'T'
- >> choice [ string "ue" >> return 2
- , string "hu" >> return 4
+ *> choice [ string "ue" *> return 2
+ , string "hu" *> return 4
]
- , string "Wed" >> return 3
- , string "Fri" >> return 5
+ , string "Wed" *> return 3
+ , string "Fri" *> return 5
, char 'S'
- >> choice [ string "at" >> return 6
- , string "un" >> return 7
+ *> choice [ string "at" *> return 6
+ , string "un" *> return 7
]
]
-longWeekDayName :: Int -> String
-longWeekDayName 1 = "Monday"
-longWeekDayName 2 = "Tuesday"
-longWeekDayName 3 = "Wednesday"
-longWeekDayName 4 = "Thursday"
-longWeekDayName 5 = "Friday"
-longWeekDayName 6 = "Saturday"
-longWeekDayName 7 = "Sunday"
+longWeekDayName ∷ Num n ⇒ n → AsciiBuilder
+{-# INLINE longWeekDayName #-}
+longWeekDayName = A.toAsciiBuilder ∘ go
+ where
+ {-# INLINEABLE go #-}
+ go 1 = "Monday"
+ go 2 = "Tuesday"
+ go 3 = "Wednesday"
+ go 4 = "Thursday"
+ go 5 = "Friday"
+ go 6 = "Saturday"
+ go 7 = "Sunday"
+ go n = error ("longWeekDayName: invalid week day: " ⧺ show n)
-longWeekDayNameP :: Stream s m Char => ParsecT s u m Int
+longWeekDayNameP ∷ Num n ⇒ Parser n
+{-# INLINEABLE longWeekDayNameP #-}
longWeekDayNameP
- = choice [ string "Monday" >> return 1
+ = choice [ string "Monday" *> return 1
, char 'T'
- >> choice [ string "uesday" >> return 2
- , string "hursday" >> return 4
+ *> choice [ string "uesday" *> return 2
+ , string "hursday" *> return 4
]
- , string "Wednesday" >> return 3
- , string "Friday" >> return 5
+ , string "Wednesday" *> return 3
+ , string "Friday" *> return 5
, char 'S'
- >> choice [ string "aturday" >> return 6
- , string "unday" >> return 7
+ *> choice [ string "aturday" *> return 6
+ , string "unday" *> return 7
]
]
-shortMonthName :: Int -> String
-shortMonthName 1 = "Jan"
-shortMonthName 2 = "Feb"
-shortMonthName 3 = "Mar"
-shortMonthName 4 = "Apr"
-shortMonthName 5 = "May"
-shortMonthName 6 = "Jun"
-shortMonthName 7 = "Jul"
-shortMonthName 8 = "Aug"
-shortMonthName 9 = "Sep"
-shortMonthName 10 = "Oct"
-shortMonthName 11 = "Nov"
-shortMonthName 12 = "Dec"
-shortMonthName n = error ("shortMonthName: unknown month number: " ++ show n)
+shortMonthName ∷ Num n ⇒ n → AsciiBuilder
+{-# INLINE shortMonthName #-}
+shortMonthName = A.toAsciiBuilder ∘ go
+ where
+ {-# INLINEABLE go #-}
+ go 1 = "Jan"
+ go 2 = "Feb"
+ go 3 = "Mar"
+ go 4 = "Apr"
+ go 5 = "May"
+ go 6 = "Jun"
+ go 7 = "Jul"
+ go 8 = "Aug"
+ go 9 = "Sep"
+ go 10 = "Oct"
+ go 11 = "Nov"
+ go 12 = "Dec"
+ go n = error ("shortMonthName: invalid month: " ⧺ show n)
-shortMonthNameP :: Stream s m Char => ParsecT s u m Int
+shortMonthNameP ∷ Num n ⇒ Parser n
+{-# INLINEABLE shortMonthNameP #-}
shortMonthNameP
= choice [ char 'J'
- >> choice [ string "an" >> return 1
+ *> choice [ string "an" *> return 1
, char 'u'
- >> choice [ char 'n' >> return 6
- , char 'l' >> return 7
+ *> choice [ char 'n' *> return 6
+ , char 'l' *> return 7
]
]
- , string "Feb" >> return 2
+ , string "Feb" *> return 2
, string "Ma"
- >> choice [ char 'r' >> return 3
- , char 'y' >> return 5
+ *> choice [ char 'r' *> return 3
+ , char 'y' *> return 5
]
, char 'A'
- >> choice [ string "pr" >> return 4
- , string "ug" >> return 8
+ *> choice [ string "pr" *> return 4
+ , string "ug" *> return 8
]
- , string "Sep" >> return 9
- , string "Oct" >> return 10
- , string "Nov" >> return 11
- , string "Dec" >> return 12
+ , string "Sep" *> return 9
+ , string "Oct" *> return 10
+ , string "Nov" *> return 11
+ , string "Dec" *> return 12
]
-longMonthName :: Int -> String
-longMonthName 1 = "January"
-longMonthName 2 = "February"
-longMonthName 3 = "March"
-longMonthName 4 = "April"
-longMonthName 5 = "May"
-longMonthName 6 = "June"
-longMonthName 7 = "July"
-longMonthName 8 = "August"
-longMonthName 9 = "September"
-longMonthName 10 = "October"
-longMonthName 11 = "November"
-longMonthName 12 = "December"
-longMonthName n = error ("longMonthName: unknown month number: " ++ show n)
+longMonthName ∷ Num n ⇒ n → AsciiBuilder
+{-# INLINE longMonthName #-}
+longMonthName = A.toAsciiBuilder ∘ go
+ where
+ {-# INLINEABLE go #-}
+ go 1 = "January"
+ go 2 = "February"
+ go 3 = "March"
+ go 4 = "April"
+ go 5 = "May"
+ go 6 = "June"
+ go 7 = "July"
+ go 8 = "August"
+ go 9 = "September"
+ go 10 = "October"
+ go 11 = "November"
+ go 12 = "December"
+ go n = error ("longMonthName: invalid month: " ⧺ show n)
-longMonthNameP :: Stream s m Char => ParsecT s u m Int
+longMonthNameP ∷ Num n ⇒ Parser n
+{-# INLINEABLE longMonthNameP #-}
longMonthNameP
= choice [ char 'J'
- >> choice [ string "anuary" >> return 1
+ *> choice [ string "anuary" *> return 1
, char 'u'
- >> choice [ string "ne" >> return 6
- , string "ly" >> return 7
+ *> choice [ string "ne" *> return 6
+ , string "ly" *> return 7
]
]
- , string "February" >> return 2
+ , string "February" *> return 2
, string "Ma"
- >> choice [ string "rch" >> return 3
- , char 'y' >> return 5
+ *> choice [ string "rch" *> return 3
+ , char 'y' *> return 5
]
, char 'A'
- >> choice [ string "pril" >> return 4
- , string "ugust" >> return 8
+ *> choice [ string "pril" *> return 4
+ , string "ugust" *> return 8
]
- , string "September" >> return 9
- , string "October" >> return 10
- , string "November" >> return 11
- , string "December" >> return 12
+ , string "September" *> return 9
+ , string "October" *> return 10
+ , string "November" *> return 11
+ , string "December" *> return 12
]
-show4 :: Integral i => i -> String
-show4 i
- | i >= 0 && i < 10 = "000" ++ show i
- | i >= 0 && i < 100 = "00" ++ show i
- | i >= 0 && i < 1000 = "0" ++ show i
- | i >= 0 && i < 10000 = show i
- | otherwise = error ("show4: the integer i must satisfy 0 <= i < 10000: " ++ show i)
+show4 ∷ Integral i ⇒ i → AsciiBuilder
+{-# INLINE show4 #-}
+show4 = A.unsafeFromBuilder ∘ go
+ where
+ {-# INLINEABLE go #-}
+ go i | i ≥ 0 ∧ i < 10 = B.fromByteString "000" ⊕ BT.digit i
+ | i ≥ 0 ∧ i < 100 = B.fromByteString "00" ⊕ BT.integral i
+ | i ≥ 0 ∧ i < 1000 = B.fromByteString "0" ⊕ BT.integral i
+ | i ≥ 0 ∧ i < 10000 = BT.integral i
+ | otherwise = error ("show4: the integer i must satisfy 0 <= i < 10000: " ⧺ show i)
+
+show2 ∷ Integral i ⇒ i → AsciiBuilder
+{-# INLINE show2 #-}
+show2 = A.unsafeFromBuilder ∘ go
+ where
+ go i | i ≥ 0 ∧ i < 10 = B.fromByteString "0" ⊕ BT.digit i
+ | i ≥ 0 ∧ i < 100 = BT.integral i
+ | otherwise = error ("show2: the integer i must satisfy 0 <= i < 100: " ⧺ show i)
-show2 :: Integral i => i -> String
-show2 i
- | i >= 0 && i < 10 = "0" ++ show i
- | i >= 0 && i < 100 = show i
- | otherwise = error ("show2: the integer i must satisfy 0 <= i < 100: " ++ show i)
+show2' ∷ Integral i ⇒ i → AsciiBuilder
+{-# INLINE show2' #-}
+show2' = A.unsafeFromBuilder ∘ go
+ where
+ go i | i ≥ 0 ∧ i < 10 = B.fromByteString " " ⊕ BT.digit i
+ | i ≥ 0 ∧ i < 100 = BT.integral i
+ | otherwise = error ("show2': the integer i must satisfy 0 <= i < 100: " ⧺ show i)
-read4 :: (Stream s m Char, Num n) => ParsecT s u m n
-read4 = do n1 <- digit'
- n2 <- digit'
- n3 <- digit'
- n4 <- digit'
+read4 ∷ Num n ⇒ Parser n
+{-# INLINEABLE read4 #-}
+read4 = do n1 ← digit'
+ n2 ← digit'
+ n3 ← digit'
+ n4 ← digit'
return (n1 * 1000 + n2 * 100 + n3 * 10 + n4)
-read2 :: (Stream s m Char, Num n) => ParsecT s u m n
-read2 = do n1 <- digit'
- n2 <- digit'
+read2 ∷ Num n ⇒ Parser n
+{-# INLINEABLE read2 #-}
+read2 = do n1 ← digit'
+ n2 ← digit'
return (n1 * 10 + n2)
-digit' :: (Stream s m Char, Num n) => ParsecT s u m n
-digit' = liftM fromC digit
+read2' ∷ Num n ⇒ Parser n
+{-# INLINEABLE read2' #-}
+read2' = do n1 ← (char ' ' *> pure 0) <|> digit'
+ n2 ← digit'
+ return (n1 * 10 + n2)
+
+digit' ∷ Num n ⇒ Parser n
+digit' = fromC <$> P.digit
-fromC :: Num n => Char -> n
+fromC ∷ Num n ⇒ Char → n
fromC '0' = 0
fromC '1' = 1
fromC '2' = 2
fromC '9' = 9
fromC _ = undefined
-showTZ :: TimeZone -> String
-showTZ tz
+show4digitsTZ ∷ TimeZone → AsciiBuilder
+show4digitsTZ tz
= case timeZoneMinutes tz of
- offset | offset < 0 -> '-' : showTZ' (negate offset)
- | otherwise -> '+' : showTZ' offset
+ offset | offset < 0 → A.toAsciiBuilder "-" ⊕ showTZ' (negate offset)
+ | otherwise → A.toAsciiBuilder "+" ⊕ showTZ' offset
where
showTZ' offset
= let h = offset `div` 60
m = offset - h * 60
in
- concat [show2 h, show2 m]
+ show2 h ⊕ show2 m
-read4digitsTZ :: Stream s m Char => ParsecT s u m TimeZone
+read4digitsTZ ∷ Parser TimeZone
read4digitsTZ
- = do sign <- (char '+' >> return 1)
- <|>
- (char '-' >> return (-1))
- hour <- read2
- minute <- read2
+ = do sign ← (char '+' *> return 1)
+ <|>
+ (char '-' *> return (-1))
+ hour ← read2
+ minute ← read2
let tz = TimeZone {
- timeZoneMinutes = (sign * (hour * 60 + minute))
+ timeZoneMinutes = sign * (hour * 60 + minute)
, timeZoneSummerOnly = False
, timeZoneName = timeZoneOffsetString tz
}
return tz
-assertWeekDayIsGood :: Stream s m t => Int -> Day -> ParsecT s u m ()
+assertWeekDayIsGood ∷ Monad m ⇒ Int → Day → m ()
+{-# INLINEABLE assertWeekDayIsGood #-}
assertWeekDayIsGood givenWD gregDay
= let (_, _, correctWD ) = toWeekDate gregDay
(year, month, day) = toGregorian gregDay
in
- unless (givenWD == correctWD)
- $ fail
- $ concat [ "Gregorian day "
+ unless (givenWD ≡ correctWD)
+ $ fail
+ $ concat [ "Gregorian day "
+ , show year
+ , "-"
+ , show month
+ , "-"
+ , show day
+ , " is "
+ , toStr $ longWeekDayName correctWD
+ , ", not "
+ , toStr $ longWeekDayName givenWD
+ ]
+ where
+ toStr ∷ AsciiBuilder → String
+ toStr = A.toString ∘ A.fromAsciiBuilder
+
+assertGregorianDateIsGood ∷ Monad m ⇒ Integer → Int → Int → m Day
+{-# INLINEABLE assertGregorianDateIsGood #-}
+assertGregorianDateIsGood year month day
+ = case fromGregorianValid year month day of
+ Nothing
+ → fail $ concat [ "Invalid gregorian day: "
, show year
, "-"
, show month
, "-"
, show day
- , " is "
- , longWeekDayName correctWD
- , ", not "
- , longWeekDayName givenWD
]
-
-assertGregorianDateIsGood :: Stream s m t => Integer -> Int -> Int -> ParsecT s u m Day
-assertGregorianDateIsGood year month day
- = case fromGregorianValid year month day of
- Nothing
- -> fail $ concat [ "Invalid gregorian day: "
- , show year
- , "-"
- , show month
- , "-"
- , show day
- ]
Just gregDay
- -> return gregDay
+ → return gregDay
-assertTimeOfDayIsGood :: Stream s m t => Int -> Int -> Pico -> ParsecT s u m TimeOfDay
+assertTimeOfDayIsGood ∷ Monad m ⇒ Int → Int → Pico → m TimeOfDay
+{-# INLINEABLE assertTimeOfDayIsGood #-}
assertTimeOfDayIsGood hour minute second
= case makeTimeOfDayValid hour minute second of
Nothing
- -> fail $ concat [ "Invalid time of day: "
- , show hour
- , ":"
- , show minute
- , ":"
- , showFixed True second
- ]
+ → fail $ concat [ "Invalid time of day: "
+ , show hour
+ , ":"
+ , show minute
+ , ":"
+ , showFixed True second
+ ]
Just tod
- -> return tod
+ → return tod
+
+optionMaybe ∷ Alternative f ⇒ f a → f (Maybe a)
+{-# INLINE optionMaybe #-}
+optionMaybe p
+ = option Nothing (Just <$> p)
projects / time-http.git / blobdiff