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#include <u.h>
#include <libc.h>
/*
* seconds absolute_date ... - convert absolute_date to seconds since epoch
*/
char *formats[] = {
/* asctime */
"W MMM DD hh:mm:ss ?Z YYYY",
/* RFC5322 */
"?W ?DD ?MMM ?YYYY hh:mm:ss ?Z",
"?W, DD-?MM-YY hh:mm:ss ?Z",
/* RFC822/RFC2822 */
"DD MMM YY hh:mm ZZZ",
"DD MMM YY hh:mm Z",
/* RFC850 */
"W, DD-MMM-YY hh:mm:ss MST",
/* RFC1123 */
"WW, DD MMM YYYY hh:mm:ss ZZZ",
/* RFC1123Z */
"WW, DD MMM YYYY hh:mm:ss ZZ",
/* RFC3339 */
"YYYY-MM-DD[T]hh:mm:ss[Z]ZZ",
"YYYY-MM-DD[T]hh:mm:ss[Z]Z",
"YYYY-MM-DD[T]hh:mm:ss ZZ",
"YYYY-MM-DD[T]hh:mm:ss Z",
/* RFC 3339 and human-readable variants */
"YYYY-MM-DD hh:mm:ss",
"YYYY-MM-DD hh:mm:ss ?Z",
"YYYY-MM-DD [@] hh:mm:ss",
"YYYY-MM-DD [@] hh:mm:ss ?Z",
nil
};
static void
usage(void)
{
fprint(2, "usage: %s date-time ...\n", argv0);
exits("usage");
}
void
main(int argc, char **argv)
{
Tm tm;
char **f, *fmt;
int i;
fmt = nil;
ARGBEGIN{
case 'f':
fmt = EARGF(usage());
break;
default:
usage();
}ARGEND;
for(i = 0; i < argc; i++){
if(fmt != nil){
if(tmparse(&tm, fmt, argv[i], nil) != nil)
goto Found;
}else{
for(f = formats; *f != nil; f++)
if(tmparse(&tm, *f, argv[i], nil) != nil)
goto Found;
}
sysfatal("tmparse: %r");
Found:
print("%lld\n", tm.abs);
}
exits(nil);
}
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