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refactor fixSmartDate*

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This commit is contained in:
Simon Michael 2011-08-14 22:39:48 +00:00
parent 931c64221e
commit c24609f468
1 changed files with 10 additions and 4 deletions
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12
hledger-lib/Hledger/Data/Dates.hs
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@ -169,12 +169,18 @@ showDay day = printf "%04d/%02d/%02d" y m d where (y,m,d) = toGregorian day
-- | Convert a smart date string to an explicit yyyy\/mm\/dd string using -- | Convert a smart date string to an explicit yyyy\/mm\/dd string using
-- the provided reference date, or raise an error. -- the provided reference date, or raise an error.
fixSmartDateStr :: Day -> String -> String fixSmartDateStr :: Day -> String -> String
fixSmartDateStr d s = either (\e->error' $ printf "could not parse date %s %s" (show s) (show e)) id $ fixSmartDateStrEither d s fixSmartDateStr d s = either
(\e->error' $ printf "could not parse date %s %s" (show s) (show e))
id
$ fixSmartDateStrEither d s
-- | A safe version of fixSmartDateStr. -- | A safe version of fixSmartDateStr.
fixSmartDateStrEither :: Day -> String -> Either ParseError String fixSmartDateStrEither :: Day -> String -> Either ParseError String
fixSmartDateStrEither t s = case parsewith smartdateonly (lowercase s) of fixSmartDateStrEither d = either Left (Right . showDate) . fixSmartDateStrEither' d
Right sd -> Right $ showDay $ fixSmartDate t sd
fixSmartDateStrEither' :: Day -> String -> Either ParseError Day
fixSmartDateStrEither' d s = case parsewith smartdateonly (lowercase s) of
Right sd -> Right $ fixSmartDate d sd
Left e -> Left e Left e -> Left e
-- | Convert a SmartDate to an absolute date using the provided reference date. -- | Convert a SmartDate to an absolute date using the provided reference date.