validator = NuValidator.new(:validator_uri => 'https://localhost/check')

  validator = NuValidator.new(:proxy_host => 'proxy.example.com',
                              :proxy_port => 80,
                              :proxy_user => 'optional',
                              :proxy_pass => 'optional')

  require 'w3c_validators'
  
  include W3CValidators
  @validator = NuValidator.new
  
  file = File.dirname(__FILE__) + '/fixtures/valid_html5.html'
  results = @validator.validate_file(file)
  if results.errors.length > 0
    results.errors.each do |err|
      puts err.to_s
    end
  else
    puts 'Valid!'
  end

  require 'w3c_validators'
  
  include W3CValidators
  @validator = FeedValidator.new
  results = @validator.validate_uri('https://example.com/feed.xml')
  if results.errors.length > 0
    results.errors.each do |err|
      puts err.to_s
    end
  else
    puts 'Valid!'
  end

  require 'w3c_validators'
  
  include W3CValidators
  @validator = CSSValidator.new
  results = @validator.validate_text('body { margin: 0px; }')
  if results.errors.length > 0
    results.errors.each do |err|
      puts err.to_s
    end
  else
    puts 'Valid!'
  end

  require 'w3c_validators'
  
  include W3CValidators
  @validator = MarkupValidator.new
  
  # override the DOCTYPE
  @validator.set_doctype!(:html32)
  
  # turn on debugging messages
  @validator.set_debug!(true)
  file = File.dirname(__FILE__) + '/fixtures/markup.html'
  results = @validator.validate_file(fp)
  if results.errors.length > 0
    results.errors.each do |err|
      puts err.to_s
    end
  else
    puts 'Valid!'
  end
  
  puts 'Debugging messages'
  
  results.debug_messages.each do |key, value|
    puts "#{key}: #{value}"
  end