NZDIGIT
if (NZDIGIT(current)) {
if (NZDIGIT(current)) {
nfast < nfastlimit && NZDIGIT(current);
if (NZDIGIT(current)) {
nfast < nfastlimit && NZDIGIT(current);
if (NZDIGIT(current)) {
if (NZDIGIT(current)) {
nfast < nfastlimit && NZDIGIT(current);
if (NZDIGIT(current)) {
nfast < nfastlimit && NZDIGIT(current);