arguments.rb in kommand-0.0.2

- old
+ new

@@ -1,8 +1,30 @@
 module Kommand
   module Scripts
     class Arguments < Array
-      
+
+      def named
+        args = self.class.new
+        args.concat(select { |arg| !arg.unnamed? })
+      end
+
+      def unnamed
+        args = self.class.new
+        args.concat(select { |arg| arg.unnamed? })
+      end
+
+      def arg(key)
+        named.select { |arg| arg.name.to_s == key.to_s }.first
+      end
+
+      def arg?(key)
+        !arg(key).nil?
+      end
+
+      def get(key)
+        arg?(key) ? arg(key).value : nil
+      end
+
       def to_s
         map do |arg|
           #if arg.valid.nil? || arg.valid.empty?
             "[#{arg.keys.join(", ")}]"
           #else