ENH remove last two digit year check

lib/Internal/Insert.hs

@@ -57,11 +57,10 @@ cronPatternMatches
     yMaybe (y' - 2000) y && mdMaybe m' m && mdMaybe d' d && wdMaybe (dayOfWeek_ x) w
     where
       testMaybe = maybe True
-      yMaybe z = testMaybe (mdyPatternMatches testYear (fromIntegral z))
+      yMaybe z = testMaybe (mdyPatternMatches (fromIntegral z))
-      mdMaybe z = testMaybe (mdyPatternMatches (const Nothing) (fromIntegral z))
+      mdMaybe z = testMaybe (mdyPatternMatches (fromIntegral z))
       wdMaybe z = testMaybe (`weekdayPatternMatches` z)
       (y', m', d') = toGregorian x
-      testYear z = if z > 99 then Just "year must be 2 digits" else Nothing
 
 dayOfWeek_ :: Day -> Weekday
 dayOfWeek_ d = case dayOfWeek d of
@@ -77,16 +76,12 @@ weekdayPatternMatches :: WeekdayPat -> Weekday -> Bool
 weekdayPatternMatches (OnDay x) = (== x)
 weekdayPatternMatches (OnDays xs) = (`elem` xs)
 
-mdyPatternMatches :: (Natural -> Maybe String) -> Natural -> MDYPat -> Bool
+mdyPatternMatches :: Natural -> MDYPat -> Bool
-mdyPatternMatches check x p = case p of
+mdyPatternMatches x p = case p of
-  Single y -> errMaybe (check y) $ x == y
+  Single y -> x == y
-  Multi xs -> errMaybe (msum $ check <$> xs) $ x `elem` xs
+  Multi xs -> x `elem` xs
   Repeat (RepeatPat {rpStart = s, rpBy = b, rpRepeats = r}) ->
-    errMaybe (check s) $
     s >= x && mod x b == 0 && maybe True (\y -> x <= s + b * y) r
-  where
-    errMaybe test rest = maybe rest err test
-    err msg = error $ show p ++ ": " ++ msg
 
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 -- budget