Return integer values instead of FigNewton::Node

config/yaml/test_config.yml

@@ -8,3 +8,5 @@ first:
   second:
     third: foo
     fourth: bar
+
+port: 1234

features/fig_newton.feature

@@ -34,3 +34,7 @@ Feature: Functionality of the fig_newton gem
     When I ask for the value for "base_url"
     Then I should see "http://cheezyworld.com"
 
+  Scenario:  Requesting a numerical value
+    Given I have read the configuration file
+    When I ask for the value for "port"
+    Then I should see 1234

features/step_definitions/fig_newton_steps.rb

@@ -15,6 +15,10 @@
   @value.should == value
 end
 
+Then /^I should see (\d+)$/ do |value|
+  @value.should == value.to_i
+end
+
 When /^I ask for a value that does not exist named "([^\"]*)"$/ do |non_existing|
   @does_not_exist = non_existing
 end

lib/fig_newton/missing.rb

@@ -5,13 +5,18 @@ def method_missing(*args, &block)
       m = args.first
       value = @yml[m.to_s]
       super unless value
-      value = FigNewton::Node.new(value) unless value.kind_of? String
+      value = FigNewton::Node.new(value) unless type_known? value
       value
     end
 
     def read_file
       @yml = YAML.load_file "#{yml_directory}/#{ENV['FIG_NEWTON_FILE']}" if ENV['FIG_NEWTON_FILE']
       FigNewton.load('default.yml') unless ENV['FIG_NEWTON_FILE']
     end
+
+    private
+    def type_known?(value)
+       value.kind_of? String or value.kind_of? Integer
+    end
   end
 end