if ((ch = this.regex.charAt(off++)) >= '0' && ch <= '9') {

                      min = ch -'0';
                      while (off < this.regexlen
                             && (ch = this.regex.charAt(off++)) >= '0' && ch <= '9') {
                          min = min*10 +ch-'0';
                          if (min < 0)
                              throw ex("parser.quantifier.5", this.offset);
                      }
                  }