a2time
static int a2time(time_t *, const char *, const char *);
if (a2time(&t, "$" "Mdocdate: %b %d %Y $", nch->string) ||
a2time(&t, "%b %d, %Y", nch->string)) {
if (a2time(&t, "%Y-%m-%d", nch->string) == 0)