LEGAL
if ((int)strspn(_Num, LEGAL) < (int)strlen(_Num)) {
static int LEGAL = FALSE;
INSERT = PER_LINE = LEGAL = EAT_LEAD = TRUE;
INSERT = PER_LINE = LEGAL = EAT_LEAD = TRUE;
PER_LINE = LINE_CONT = LEGAL = TRUE;
LEGAL = DASHX || N_ARGS == 1;
DASHX = LEGAL = TRUE;
if (LEGAL || N_args == 0) {