anchor.diff:  class C
     include Hobby
   
  -  get("/hello") {
  +  get "/hello" do
       "Hello, world."
  -  }
  +  end
   end
   ----
   
  
positive.code:     @name = name
    end
  
    get("/hello") {
      "Hello, #{@name}."
    }
  end
  ----
  
  
negative.code:     @name.upcase
    end
  
    get "/hello" do
      "Hello, #{name}."
    end
  end
  ----
  
  