added dupping

lib/http_router.rb

@@ -26,11 +26,13 @@ def self.override_rack_mapper!
   end
 
   def initialize(options = nil, &block)
+    @options = options
     @default_app = options && options[:default_app] || proc{|env| ::Rack::Response.new("Not Found", 404).finish }
     @ignore_trailing_slash   = options && options.key?(:ignore_trailing_slash) ? options[:ignore_trailing_slash] : true
     @redirect_trailing_slash = options && options.key?(:redirect_trailing_slash) ? options[:redirect_trailing_slash] : false
     @routes = []
     @named_routes = {}
+    @init_block = block
     reset!
     instance_eval(&block) if block
   end
@@ -145,6 +147,20 @@ def glob(*args)
     Glob.new(self, *args)
   end
 
+  def dup
+    dup_router = HttpRouter.new(@options, &@init_block)
+    @routes.each do |r|
+      new_route = r.dup
+      new_route.router = dup_router
+      dup_router.add_route new_route
+    end
+    dup_router
+  end
+
+  def add_route(route)
+    route.compile
+  end
+
   private
 
   def consume_path!(request, response)

lib/http_router/route.rb

@@ -1,7 +1,7 @@
 class HttpRouter
   class Route
     attr_reader :dest, :paths
-    attr_accessor :trailing_slash_ignore, :partially_match, :default_values
+    attr_accessor :trailing_slash_ignore, :partially_match, :default_values, :router
 
     def initialize(base, path)
       @router = base

spec/misc_spec.rb

@@ -15,9 +15,11 @@
   end
 
   context "instance_eval block" do
-    #HttpRouter.new {
-    #  add('/test').to :test
-    #}.recognize(Rack::MockRequest.env_for('/test', :method => 'GET')).dest.should == :test
+    it "run the routes" do
+      HttpRouter.new {
+        add('/test').to :test
+      }.recognize(Rack::MockRequest.env_for('/test', :method => 'GET')).dest.should == :test
+    end
   end
 
   context "exceptions" do
@@ -34,4 +36,19 @@
     end
 
   end
+
+  context "dupping" do
+    it "run the routes" do
+      r1 = HttpRouter.new {
+        add('/test').to :test
+      }
+
+      r2 = r1.dup
+      r2.add('/test2').to(:test2)
+      r1.recognize(Rack::MockRequest.env_for('/test2')).should be_nil
+      r2.recognize(Rack::MockRequest.env_for('/test2')).should_not be_nil
+    end
+  end
+
+
 end