mygen.rb

require 'rdoc'

class RDoc::Options
  attr_accessor :you
  attr_accessor :me
end

class MyGen
  attr_reader :options
  attr_reader :store

  def self.setup_options(options)
    RDoc::RDoc.add_generator self

    options.you = "you"
    options.me = "me"

    opt = options.option_parser
    opt.separator nil
    opt.separator "MyGen generator options:"
    opt.separator nil
    opt.on("--you", "-y", "Set your name", String) do |value|
      options.you = value
    end
    opt.separator nil
    opt.on("--me", "-m", "Set my name", String) do |value|
      options.me = value
    end
    opt.separator nil

    puts options.me
    puts options.you
  end

  def initialize(store, options)
    @store = store
    @options = options
  end
end

#RDoc::RDoc::GENERATORS['mygen'] = MyGen
#options = RDoc::Options.new
#options.setup_generator 'mygen'

#ARGV.push('--format=mygen') if ARGV.grep(/\A(-f|--fmt|--format|-r|-R|--ri|--ri-site)\b/).empty?

RDoc::RDoc.new.document ARGV