# File lib/mechanize/util.rb, line 64
  def self.html_unescape(s)
    return s unless s
    s.gsub(/&(\w+|#[0-9]+);/) { |match|
      number = case match
               when /&(\w+);/
                 Mechanize.html_parser::NamedCharacters[$1]
               when /&#([0-9]+);/
                 $1.to_i
               end

      number ? ([number].pack('U') rescue match) : match
    }
  end