added response dispatching again. (much simpler this time)

README.rdoc

@@ -232,3 +232,28 @@ If you try parsing invalid parameters, you can get back friendly error messages
   => ["File is required"]
   @parser.parse(%w(kill --pid=something)).error_messages
   => ["Pid is invalid"]
+
+The response from #parse can also be used to dispatch. All that's required is the target object be able to respond to <tt>params=</tt>.
+
+For example
+
+  class Runner
+    attr_accessor :params
+    def install(file)
+      puts "I'm installing #{file} with #{params.inspect}"
+    end
+  end
+
+  parser = Optitron.new {
+    help
+    opt 'verbose', "Be very loud"
+    cmd "install", "This installs things" do
+      arg "file", "The file to install"
+    end
+  }
+
+  parser.parse(%w(install this_file -v)).dispatch(Runner.new)
+
+Will output
+
+  I'm installing this_file with {"help"=>false, "verbose"=>true}

lib/optitron/response.rb

@@ -62,5 +62,14 @@ def validate
     def valid?
       @errors.empty?
     end
+
+    def dispatch(target)
+      if valid?
+        target.params = params
+        target.send(command.to_sym, *args)
+      else
+        puts response.error_messages.join("\n")
+      end
+    end
   end
 end

spec/dispatch_spec.rb

@@ -0,0 +1,16 @@
+require 'spec_helper'
+
+describe "Optitron::Response dispatch" do
+  it "should dispatch" do
+    target = mock('target')
+    target.should_receive(:params=).with({'verbose' => false})
+    target.should_receive(:install).with('thefile')
+    @parser = Optitron.new {
+      opt 'verbose', "Be very loud"
+      cmd "install", "This installs things" do
+        arg "file", "The file to install"
+      end
+    }
+    @parser.parse(%w(install thefile)).dispatch(target)
+  end
+end