# File nqxml/utils.rb, line 24
    def NQXML.replaceCharacterRefs(str)
	return nil if str.nil?
	copy = str.gsub(/&\(\+);/n) { $1.to_i.chr }
	return copy.gsub(/&\x([0-9a-f]+);/ni) { $1.hex.chr }
    end