-- feed.
--
module TSN.Picklers (
+ xp_ambiguous_time,
xp_date,
- xp_team_id )
+ xp_date_padded,
+ xp_datetime,
+ xp_earnings,
+ xp_gamedate,
+ xp_tba_time,
+ xp_time,
+ xp_time_dots,
+ xp_time_stamp )
where
-- System imports.
-import Data.Time.Clock ( UTCTime )
+import Data.List ( intercalate )
+import Data.List.Split ( chunksOf )
+import Data.String.Utils ( replace )
+import Data.Time.Clock ( NominalDiffTime, UTCTime, addUTCTime )
import Data.Time.Format ( formatTime, parseTime )
import System.Locale ( defaultTimeLocale )
-import Text.Printf ( printf )
-import Text.Read ( readMaybe )
import Text.XML.HXT.Arrow.Pickle (
xpText,
+ xpWrap,
xpWrapMaybe )
import Text.XML.HXT.Arrow.Pickle.Xml ( PU )
+-- Local imports.
+import TSN.Parse (
+ parse_time_stamp,
+ time_format,
+ time_stamp_format )
+
+
+-- | The format string for a base date in m/d/yyyy format. The
+-- day/month are not padded at all. This will match for example,
+--
+-- * 2\/15\/1983
+--
+-- * 1\/1\/0000
+--
+date_format :: String
+date_format = "%-m/%-d/%Y"
+
+
+-- | The format string for a base date in mm/dd/yyyy format. The
+-- day/month are padded to two characters with zeros. This will
+-- match for example,
+--
+-- * 02\/15\/1983
+--
+-- * 01\/01\/0000
+--
+date_format_padded :: String
+date_format_padded = "%0m/%0d/%Y"
+
-- | (Un)pickle a UTCTime without the time portion.
--
xp_date =
(to_date, from_date) `xpWrapMaybe` xpText
where
- format = "%-m/%-d/%Y"
+ to_date :: String -> Maybe UTCTime
+ to_date = parseTime defaultTimeLocale date_format
+
+ from_date :: UTCTime -> String
+ from_date = formatTime defaultTimeLocale date_format
+
+-- | (Un)pickle a UTCTime without the time portion. The day/month are
+-- padded to two characters with zeros.
+--
+xp_date_padded :: PU UTCTime
+xp_date_padded =
+ (to_date, from_date) `xpWrapMaybe` xpText
+ where
to_date :: String -> Maybe UTCTime
- to_date = parseTime defaultTimeLocale format
+ to_date = parseTime defaultTimeLocale date_format_padded
from_date :: UTCTime -> String
- from_date = formatTime defaultTimeLocale format
+ from_date = formatTime defaultTimeLocale date_format_padded
+
+
+
+-- | Format a number as a string using a comma as the thousands
+-- separator.
+--
+-- Examples:
+--
+-- >>> format_commas 0
+-- "0"
+-- >>> format_commas 10
+-- "10"
+-- >>> format_commas 100
+-- "100"
+-- >>> format_commas 1000
+-- "1,000"
+-- >>> format_commas 10000
+-- "10,000"
+-- >>> format_commas 100000
+-- "100,000"
+-- >>> format_commas 1000000
+-- "1,000,000"
+--
+format_commas :: Int -> String
+format_commas x =
+ reverse (intercalate "," $ chunksOf 3 $ reverse $ show x)
+
+-- | Parse \<Earnings\> from an 'AutoRaceResultsListing'. These are
+-- essentially 'Int's, but they look like,
+--
+-- * \<Earnings\>336,826\</Earnings\>
+--
+-- * \<Earnings\>1,000,191\</Earnings\>
+--
+-- * \<Earnings\>TBA\</Earnings\>
+--
+xp_earnings :: PU (Maybe Int)
+xp_earnings =
+ (to_earnings, from_earnings) `xpWrap` xpText
+ where
+ strip_commas :: String -> String
+ strip_commas = replace "," ""
+
+ to_earnings :: String -> Maybe Int
+ to_earnings s
+ | s == "TBA" = Nothing
+ | otherwise = Just $ (read . strip_commas) s
+
+ from_earnings :: Maybe Int -> String
+ from_earnings Nothing = "TBA"
+ from_earnings (Just i) = format_commas i
+
+
+-- | (Un)pickle an unpadded 'UTCTime'. Used for example on the
+-- \<RaceDate\> elements in an 'AutoRaceResults' message.
+--
+-- Examples:
+--
+-- * \<RaceDate\>6/1/2014 1:00:00 PM\</RaceDate\>
+--
+-- * \<RaceDate\>5/24/2014 2:45:00 PM\</RaceDate\>
+--
+xp_datetime :: PU UTCTime
+xp_datetime =
+ (to_datetime, from_datetime) `xpWrapMaybe` xpText
+ where
+ format = date_format ++ " " ++ "%-I:%M:%S %p"
+
+ to_datetime :: String -> Maybe UTCTime
+ to_datetime = parseTime defaultTimeLocale format
+
+ from_datetime :: UTCTime -> String
+ from_datetime = formatTime defaultTimeLocale format
+
+-- | (Un)pickle a UTCTime from a weather forecast's gamedate. Example
+-- input looks like,
+--
+-- \<forecast gamedate=\"Monday, December 30th\"\>
+--
+-- When unpickling we get rid of the suffixes \"st\", \"nd\", \"rd\", and
+-- \"th\". During pickling, we add them back based on the last digit
+-- of the date.
+--
+xp_gamedate :: PU UTCTime
+xp_gamedate =
+ (to_gamedate, from_gamedate) `xpWrapMaybe` xpText
+ where
+ format = "%A, %B %-d"
+
+ to_gamedate :: String -> Maybe UTCTime
+ to_gamedate s =
+ parseTime defaultTimeLocale format s'
+ where
+ s' = case (reverse s) of
+ (c2:c1:cs) -> let suffix = [c1,c2]
+ in
+ case suffix of
+ "st" -> reverse cs
+ "nd" -> reverse cs
+ "rd" -> reverse cs
+ "th" -> reverse cs
+ _ -> s -- Unknown suffix, leave it alone.
+ _ -> s -- The String is less than two characters long,
+ -- leave it alone.
+
+
+ from_gamedate :: UTCTime -> String
+ from_gamedate d = s ++ (suffix s)
+ where
+ s = formatTime defaultTimeLocale format d
+
+ suffix :: String -> String
+ suffix cs =
+ case (reverse cs) of
+ [] -> []
+ ('1':_) -> "st"
+ ('2':_) -> "nd"
+ ('3':_) -> "rd"
+ _ -> "th"
+
+
+
+
+
+
+-- | (Un)pickle a UTCTime without the date portion.
+--
+xp_time :: PU UTCTime
+xp_time =
+ (to_time, from_time) `xpWrapMaybe` xpText
+ where
+ to_time :: String -> Maybe UTCTime
+ to_time = parseTime defaultTimeLocale time_format
+
+ from_time :: UTCTime -> String
+ from_time = formatTime defaultTimeLocale time_format
+
+
+-- | (Un)pickle a UTCTime without the date portion. This differs from
+-- 'xp_time' in that it uses periods in the AM/PM part, i.e. \"A.M.\"
+-- and \"P.M.\" It also doesn't use padding for the \"hours\" part.
+--
+-- Examples:
+--
+-- * \<CurrentTimeStamp\>11:30 A.M.\</CurrentTimeStamp\>
+--
+xp_time_dots :: PU UTCTime
+xp_time_dots =
+ (to_time, from_time) `xpWrapMaybe` xpText
+ where
+ -- | The hours arent padded with zeros.
+ nopad_time_format :: String
+ nopad_time_format = "%-I:%M %p"
+
+ to_time :: String -> Maybe UTCTime
+ to_time = (parseTime defaultTimeLocale nopad_time_format) . (replace "." "")
--- | Parse a team_id. These are (so far!) three characters long, and
--- not necessarily numeric. For simplicity, we return a 'String'
--- rather than e.g. a @(Char, Char, Char)@. But unpickling will fail
--- if the team_id is longer than three characters.
+ from_time :: UTCTime -> String
+ from_time t =
+ replace "AM" "A.M." (replace "PM" "P.M." s)
+ where
+ s = formatTime defaultTimeLocale nopad_time_format t
+
+
+-- | (Un)pickle a UTCTime without the date portion, allowing for a
+-- value of \"TBA\" (which gets translated to 'Nothing').
--
-xp_team_id :: PU String
-xp_team_id =
- (to_team_id, from_team_id) `xpWrapMaybe` xpText
+xp_tba_time :: PU (Maybe UTCTime)
+xp_tba_time =
+ (to_time, from_time) `xpWrap` xpText
where
- to_team_id :: String -> Maybe String
- to_team_id s
- | length s <= 3 = Just s
- | otherwise = Nothing
+ to_time :: String -> Maybe UTCTime
+ to_time s
+ | s == "TBA" = Nothing
+ | otherwise = parseTime defaultTimeLocale time_format s
+
+ from_time :: Maybe UTCTime -> String
+ from_time Nothing = "TBA"
+ from_time (Just t) = formatTime defaultTimeLocale time_format t
+
+
+
+-- | (Un)pickle the \<time_stamp\> element format to/from a 'UTCTime'.
+--
+-- Example: \<time_stamp\> January 6, 2014, at 10:11 PM ET \</time_stamp\>
+--
+-- TSN doesn't provide a proper time zone name, so we assume that
+-- it's always Eastern Standard Time. EST is UTC-5, so we
+-- add/subtract 5 hours to convert to/from UTC.
+--
+xp_time_stamp :: PU UTCTime
+xp_time_stamp =
+ (parse_time_stamp, from_time_stamp) `xpWrapMaybe` xpText
+ where
+ five_hours :: NominalDiffTime
+ five_hours = 5 * 60 * 60
+
+ subtract_five :: UTCTime -> UTCTime
+ subtract_five = addUTCTime (-1 * five_hours)
+
+ from_time_stamp :: UTCTime -> String
+ from_time_stamp =
+ formatTime defaultTimeLocale time_stamp_format . subtract_five
+
+
+-- | (Un)pickle an ambiguous 12-hour AM/PM time, which is ambiguous
+-- because it's missing the AM/PM part.
+--
+-- Examples:
+--
+xp_ambiguous_time :: PU UTCTime
+xp_ambiguous_time =
+ (to_time, from_time) `xpWrapMaybe` xpText
+ where
+ ambiguous_time_format :: String
+ ambiguous_time_format = "%-I:%M"
+
+ to_time :: String -> Maybe UTCTime
+ to_time = parseTime defaultTimeLocale ambiguous_time_format
- from_team_id :: String -> String
- from_team_id = id
+ from_time :: UTCTime -> String
+ from_time =
+ formatTime defaultTimeLocale ambiguous_time_format
projects / dead / htsn-import.git / blobdiff