to_s (REXML::ParseException)

    # File src/rexml/parseexception.rb, line 12
                    def to_s
                            # Quote the original exception, if there was one
                            if @continued_exception
                                    err = @continued_exception.message
                                    err << "\n"
                                    err << @continued_exception.backtrace[0..3].join("\n")
                                    err << "\n...\n"
                            else
                                    err = ""
                            end

                            # Get the stack trace and error message
                            err << super

                            # Add contextual information
                            err << "\n#{@source.current_line}\nLast 80 unconsumed characters:\n#{@source.buffer[0..80].gsub(/\n/, ' ')}\n" if @source
                            err << "\nContext:\n#{@parser.context}" if @parser
                            err
                    end