- let cidr_strings = lines input
- mapM validate_or_die cidr_strings
- let cidrs = map Cidr.from_string cidr_strings
- let regexes = map cidr_to_regex cidrs
- putStrLn $ alternate regexes
+
+ let cidr_strings = splitWs input
+ let cidrs = map cidr_from_string cidr_strings
+
+ when (any isNothing cidrs) $ do
+ putStrLn "Error: not valid CIDR notation."
+ exitWith (ExitFailure exit_invalid_cidr)
+
+ -- Filter out only the valid ones.
+ let valid_cidrs = catMaybes cidrs
+
+ -- Get the mode of operation.
+ mode <- CommandLine.parse_mode
+
+ case mode of
+ Regex -> do
+ let regexes = map cidr_to_regex valid_cidrs
+ putStrLn $ alternate regexes
+ Reduce -> do
+ _ <- mapM (putStrLn . show) (combine_all valid_cidrs)
+ return ()
+ Dupe -> do
+ _ <- mapM (putStrLn . show) dupes
+ return ()
+ where
+ dupes = valid_cidrs \\ (combine_all valid_cidrs)
+ Diff -> do
+ _ <- mapM putStrLn deletions
+ _ <- mapM putStrLn additions
+ return ()
+ where
+ dupes = valid_cidrs \\ (combine_all valid_cidrs)
+ deletions = map (\s -> "-" ++ (show s)) dupes
+ newcidrs = (combine_all valid_cidrs) \\ valid_cidrs
+ additions = map (\s -> "+" ++ (show s)) newcidrs