ISDIGIT
[SYNBASE + '0'] = ISDIGIT,
[SYNBASE + '1'] = ISDIGIT,
[SYNBASE + '2'] = ISDIGIT,
[SYNBASE + '3'] = ISDIGIT,
[SYNBASE + '4'] = ISDIGIT,
[SYNBASE + '5'] = ISDIGIT,
[SYNBASE + '6'] = ISDIGIT,
[SYNBASE + '7'] = ISDIGIT,
[SYNBASE + '8'] = ISDIGIT,
[SYNBASE + '9'] = ISDIGIT,
#define is_in_name(c) ((is_type+SYNBASE)[(int)c] & (ISUPPER|ISLOWER|ISUNDER|ISDIGIT))
#define is_special(c) ((is_type+SYNBASE)[(int)c] & (ISSPECL|ISDIGIT))
if (ISDIGIT(port_data[i])) {
if (ISDIGIT(port_data[i])) {
if (!strncmp(base, backup, base_length) && ISDIGIT(backup[base_length])) {
for (p = &backup[base_length]; ISDIGIT(*p); ++p)