wrap

# File lib/rdoc/ri/formatter.rb, line 58
  def wrap(txt, prefix=@indent, linelen=@width)
    return unless txt && !txt.empty?

    work = conv_markup(txt)
    textLen = linelen - prefix.length
    patt = Regexp.new("^(.{0,#{textLen}})[ \n]")
    next_prefix = prefix.tr("^ ", " ")

    res = []

    while work.length > textLen
      if work =~ patt
        res << $1
        work.slice!(0, $&.length)
      else
        res << work.slice!(0, textLen)
      end
    end
    res << work if work.length.nonzero?
    @output.puts(prefix + res.join("\n" + next_prefix))
  end