generator_descriptions

# File lib/rdoc/options.rb, line 538
  def generator_descriptions
    lengths = []

    generators = RDoc::RDoc::GENERATORS.map do |name, generator|
      lengths << name.length

      description = generator::DESCRIPTION if
        generator.const_defined? :DESCRIPTION

      [name, description]
    end

    longest = lengths.max

    generators.sort.map do |name, description|
      if description then
        "  %-*s - %s" % [longest, name, description]
      else
        "  #{name}"
      end
    end.join "\n"
  end