Fix #1205 -- Allow Regexp routes to use :provides option.

padrino-core/lib/padrino-core/application/routing.rb

@@ -90,7 +90,13 @@ def custom_conditions(&block)
     end
 
     def significant_variable_names
-      @significant_variable_names ||= @original_path.nil? ? [] : @original_path.scan(/(^|[^\\])[:\*]([a-zA-Z0-9_]+)/).map{|p| p.last.to_sym}
+      @significant_variable_names ||= if @original_path.is_a?(String)
+        @original_path.scan(/(^|[^\\])[:\*]([a-zA-Z0-9_]+)/).map{|p| p.last.to_sym}
+      elsif @original_path.is_a?(Regexp) and @original_path.respond_to?(:named_captures)
+        @original_path.named_captures.keys.map(&:to_sym)
+      else
+        []
+      end
     end
   end
 

padrino-core/test/test_routing.rb

@@ -207,6 +207,14 @@ class FooError < RuntimeError; end
     assert_equal 404, status
   end
 
+  should 'allow regex url with format' do
+    mock_app do
+      get(/.*/, :provides => :any) { "regexp" }
+    end
+    get "/anything"
+    assert_equal "regexp", body
+  end
+
   should 'use padrino url method' do
     mock_app do
     end