Function _fmt

strftime.c:215–659

}

static char *
_fmt(const char *format, const struct tm *t, char *pt,
     const char *ptlim, enum warn *warnp)
{
	struct lc_time_T const *Locale = &C_time_locale;

	for ( ; *format; ++format) {
		if (*format == '%') {
label:
			switch (*++format) {
			default:
				/* Output unknown conversion specifiers as-is,
				   to aid debugging.  This includes '%' at
				   format end.  This conforms to C23 section
				   7.29.3.5 paragraph 6, which says behavior
				   is undefined here.  */
				--format;
				break;
			case 'A':
				pt = _add((t->tm_wday < 0 ||
					t->tm_wday >= DAYSPERWEEK) ?
					"?" : Locale->weekday[t->tm_wday],
					pt, ptlim);
				continue;
			case 'a':
				pt = _add((t->tm_wday < 0 ||
					t->tm_wday >= DAYSPERWEEK) ?
					"?" : Locale->wday[t->tm_wday],
					pt, ptlim);
				continue;
			case 'B':
				pt = _add((t->tm_mon < 0 ||
					t->tm_mon >= MONSPERYEAR) ?
					"?" : Locale->month[t->tm_mon],
					pt, ptlim);
				continue;
			case 'b':
			case 'h':
				pt = _add((t->tm_mon < 0 ||
					t->tm_mon >= MONSPERYEAR) ?
					"?" : Locale->mon[t->tm_mon],
					pt, ptlim);
				continue;
			case 'C':
				/*
				** %C used to do a...
				**	_fmt("%a %b %e %X %Y", t);
				** ...whereas now POSIX 1003.2 calls for
				** something completely different.
				** (ado, 1993-05-24)
				*/
				pt = _yconv(t->tm_year, TM_YEAR_BASE,
					    true, false, pt, ptlim);
				continue;
			case 'c':
				{
				enum warn warn2 = IN_SOME;