diff options
Diffstat (limited to 'src/Text/Pandoc')
| -rw-r--r-- | src/Text/Pandoc/Shared.hs | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/Text/Pandoc/Shared.hs b/src/Text/Pandoc/Shared.hs index 3dfdc3c8b..cc834a69a 100644 --- a/src/Text/Pandoc/Shared.hs +++ b/src/Text/Pandoc/Shared.hs @@ -326,13 +326,13 @@ tabFilter tabStop = -- | Parse a date and convert (if possible) to "YYYY-MM-DD" format. We -- limit years to the range 1601-9999 (ISO 8601 accepts greater than --- or equal to 1583, but MS Word only accepts dates starting 1601. +-- or equal to 1583, but MS Word only accepts dates starting 1601). normalizeDate :: String -> Maybe String -normalizeDate s = case toGregorian <$> day of - Just (y, _, _) | y >= 1601 && y <= 9999 -> - fmap (formatTime defaultTimeLocale "%F") day - _ -> Nothing - where day = (msum $ map (\fs -> parsetimeWith fs s) formats :: Maybe Day) +normalizeDate s = fmap (formatTime defaultTimeLocale "%F") + (msum $ map (\fs -> parsetimeWith fs s >>= rejectBadYear) formats :: Maybe Day) + where rejectBadYear day = case toGregorian day of + (y, _, _) | y >= 1601 && y <= 9999 -> Just day + _ -> Nothing parsetimeWith = #if MIN_VERSION_time(1,5,0) parseTimeM True defaultTimeLocale |