strip_attributes

# File lib/rdoc/ri/ri_formatter.rb, line 216
    def strip_attributes(txt)
      tokens = txt.split(%r{(</?(?:b|code|em|i|tt)>)})
      text = [] 
      attributes = 0
      tokens.each do |tok|
        case tok
        when %r{^</(\w+)>$}, %r{^<(\w+)>$}
          ;
        else
          text << tok
        end
      end
      text.join
    end