# File lib/ruby-progressbar/components/bar.rb, line 25
  def to_s(options = { :format => :standard })
    if progress.unknown?
      unknown_string
    elsif options[:format] == :standard
      "#{standard_complete_string}#{incomplete_string}"
    elsif options[:format] == :integrated_percentage
      "#{integrated_percentage_complete_string}#{incomplete_string}"
    end
  end