8601 datetime is `"%Y-%m-%dT%H:%M:%SZ"`.
jq may not support some or all of this date functionality on
- some systems.
+ some systems. In particular, the `%u` and `%j` specifiers for
+ `strptime(fmt)` are not supported on macOS.
examples:
- program: 'fromdate'
* day-of-week and day-of-year sentinel checks above, the worst
* this can do is produce garbage.
*/
+#ifdef __APPLE__
+ /*
+ * Apple has made it worse, and different versions of the OS have different
+ * behaviors. Some versions just don't touch the fields, but others do, and
+ * sometimes provide wrong answers, at that! We can't tell at compile-time
+ * which behavior the target system will have, so instead we always use our
+ * functions to set these on OS X, and document that %u and %j are
+ * unsupported on OS X.
+ */
+ set_tm_wday(&tm);
+ set_tm_yday(&tm);
+#else
if (tm.tm_wday == 8 && tm.tm_mday != 0 && tm.tm_mon >= 0 && tm.tm_mon <= 11)
set_tm_wday(&tm);
if (tm.tm_yday == 367 && tm.tm_mday != 0 && tm.tm_mon >= 0 && tm.tm_mon <= 11)
set_tm_yday(&tm);
+#endif
jv r = tm2jv(&tm);
if (*end != '\0')
r = jv_array_append(r, jv_string(end));
# Check day-of-week and day of year computations
# (should trip an assert if this fails)
-last(range(365 * 199)|("1970-03-01T01:02:03Z"|strptime("%Y-%m-%dT%H:%M:%SZ")|mktime) + (86400 * .)|strftime("%Y-%m-%dT%H:%M:%SZ")|strptime("%Y-%m-%dT%H:%M:%SZ"))
+# This date range
+last(range(365 * 67)|("1970-03-01T01:02:03Z"|strptime("%Y-%m-%dT%H:%M:%SZ")|mktime) + (86400 * .)|strftime("%Y-%m-%dT%H:%M:%SZ")|strptime("%Y-%m-%dT%H:%M:%SZ"))
null
-[2169,0,10,1,2,3,1,9]
+[2037,1,11,1,2,3,3,41]
# %e is not available on mingw/WIN32
strftime("%A, %B %e, %Y")