class Browser
  def supported?; true; end
  def setup ; end
  def open(url) ; end
  def teardown ; end

  def host
    require 'rbconfig'
    Config::CONFIG['host']
  end
  
  def macos?
    host.include?('darwin')
  end
  
  def windows?
    host.include?('mswin')
  end
  
  def linux?
    host.include?('linux')
  end

  def open(url)
    case
    when macos?
      `open #{url}`
    when windows?
      `start #{url}`
    else
      puts "I don't know how to open a browser for #{url} on your system"
    end
  end
end