lib/fugit/nat.rb in fugit-0.9.4 vs lib/fugit/nat.rb in fugit-0.9.5

@@ -30,10 +30,14 @@
   #
   module Nat
 
     def self.parse(s)
 
+      return s if s.is_a?(Fugit::Cron) || s.is_a?(Fugit::Duration)
+
+      return nil unless s.is_a?(String)
+
 #p s; Raabro.pp(Parser.parse(s, debug: 3))
       a = Parser.parse(s)
 
 #p a
       return nil unless a
@@ -41,9 +45,14 @@
       if a.include?([ :flag, 'every' ])
         parse_cron(a)
       else
         nil
       end
+    end
+
+    def self.do_parse(s)
+
+      parse(s) || fail(ArgumentError.new("could not parse a nat #{s.inspect}"))
     end
 
     def self.parse_cron(a)
 
       h = { min: nil, hou: [], dom: [ nil ], mon: [ nil ], dow: [ nil ] }