browser.rb

require 'net/http'
require 'nokogiri'

require_relative 'util'

class Browser
  def run!
    # Run the browser
    # Display a prompt for a user
    # Parse their input
    # Display useful results by instantiating
    #   a new Page and calling methods on it.
    
    # Questions:
    #  1. How can a user quit the browser gracefully?
    #  2. How can a user ask for help, i.e., how do they know what commands are available to them?
  end
end

Browser.new.run!

util.rb

class Page
  def initialize(url)
  end
  
  def fetch!
  end
  
  def title
  end
  
  def links
    # Research alert!
    # How do you use Nokogiri to extract all the link URLs on a page?
    #
    # These should only be URLs that look like
    #   <a href="http://somesite.com/page.html">Click here!</a>
    # This would pull out "http://somesite.com/page.html"
  end
end