parse values from lines of the SVD section

        Parameters
        ----------
        lines : list

def parse_values_from_lines(self,lines):
        """ parse values from lines of the SVD section

        Parameters
        ----------
        lines : list

        """
        assert len(lines) == 3,"SvdData.parse_values_from_lines: expected " + \
                               "3 lines, not {0}".format(len(lines))
        try:
            self.svdmode = int(lines[0].strip().split()[0])
        except Exception as e:
            raise Exception("SvdData.parse_values_from_lines: error parsing" + \
                            " svdmode from line {0}: {1} \n".format(lines[0],str(e)))
        try:
            raw = lines[1].strip().split()
            self.maxsing = int(raw[0])
            self.eigthresh = float(raw[1])
        except Exception as e:
            raise Exception("SvdData.parse_values_from_lines: error parsing" + \
                            " maxsing and eigthresh from line {0}: {1} \n"\
                            .format(lines[1],str(e)))
        # try:
        #     self.eigwrite = int(lines[2].strip())
        # except Exception as e:
        #     raise Exception("SvdData.parse_values_from_lines: error parsing" + \
        #                     " eigwrite from line {0}: {1} \n".format(lines[2],str(e)))
        self.eigwrite = lines[2].strip()