Parse . in a regex

lib/imbecile/regex/parser.rb

@@ -214,6 +214,8 @@ module Imbecile
             au.new_alternate!
           when "\\"
             au << parse_backslash
+          when "."
+            au << period_character_class
           else
             au << CharacterRangeUnit.new(c)
           end
@@ -307,6 +309,13 @@ module Imbecile
         end
       end
 
+      def period_character_class
+        ccu = CharacterClassUnit.new
+        ccu << CharacterRangeUnit.new(0, "\n".ord - 1)
+        ccu << CharacterRangeUnit.new("\n".ord + 1, 0xFFFFFFFF)
+        ccu
+      end
+
     end
 
   end