SIGNOK
flags |= SIGNOK | NDIGITS | NZDIGITS;
flags &= ~(SIGNOK|NZDIGITS|NDIGITS);
flags &= ~(SIGNOK|PFXOK|NDIGITS);
flags &= ~(SIGNOK | PFXOK | NDIGITS);
flags &= ~(SIGNOK | PFXOK | NDIGITS);
flags &= ~(SIGNOK | PFXOK | NDIGITS);
if (flags & SIGNOK) {
flags &= ~SIGNOK;