# File lib/mail/version_specific/ruby_1_9.rb, line 65
    def Ruby19.q_value_decode(str)
      match = str.match(/\=\?(.+)?\?[Qq]\?(.+)?\?\=/m)
      if match
        encoding = match[1]
        str = Encodings::QuotedPrintable.decode(match[2])
        str.force_encoding(fix_encoding(encoding))
      end
      str.encode("utf-8", :invalid => :replace, :replace => "") 
    end