look_for_directives_in

# File lib/rdoc/parser/ruby.rb, line 379
  def look_for_directives_in(context, comment)
    preprocess = RDoc::Markup::PreProcess.new @file_name, @options.rdoc_include

    preprocess.handle comment, context do |directive, param|
      case directive
      when 'enddoc' then
        throw :enddoc
      when 'main' then
        @options.main_page = param
        ''
      when 'method', 'singleton-method',
           'attr', 'attr_accessor', 'attr_reader', 'attr_writer' then
        false # handled elsewhere
      when 'section' then
        context.set_current_section param, comment
        comment.replace ''
        break
      when 'startdoc' then
        context.start_doc
        context.force_documentation = true
        ''
      when 'stopdoc' then
        context.stop_doc
        ''
      when 'title' then
        @options.title = param
        ''
      end
    end

    remove_private_comments comment
  end