convert_flow

# File lib/rdoc/markup/to_html_snippet.rb, line 214
  def convert_flow flow
    throw :done if @characters >= @character_limit

    res = []
    @mask = 0

    flow.each do |item|
      case item
      when RDoc::Markup::AttrChanger then
        off_tags res, item
        on_tags  res, item
      when String then
        text = convert_string item
        res << truncate(text)
      when RDoc::Markup::Special then
        text = convert_special item
        res << truncate(text)
      else
        raise "Unknown flow element: #{item.inspect}"
      end

      if @characters >= @character_limit then
        off_tags res, RDoc::Markup::AttrChanger.new(0, @mask)
        break
      end
    end

    res << ' ...' if @characters >= @character_limit

    res.join
  end