# File temp/encoding.rb, line 55
    def check_encoding str
      # We have to recognize UTF-16, LSB UTF-16, and UTF-8
      return UTF_16 if str[0] == 254 && str[1] == 255
      return UNILE if str[0] == 255 && str[1] == 254
      str =~ /^\s*<?xml\s*version=(['"]).*?\2\s*encoding=(["'])(.*?)\2/um
      return $1.upcase if $1
      return UTF_8
    end