libbb: better comment in parse_date

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2011-01-17 14:23:42 +01:00
parent ad3d72f082
commit 10ee20b58b

View File

@ -91,7 +91,13 @@ void FAST_FUNC parse_datestr(const char *date_str, struct tm *ptm)
* .SS Seconds, a number from 0 to 61 (with leap seconds) * .SS Seconds, a number from 0 to 61 (with leap seconds)
* Everything but the minutes is optional * Everything but the minutes is optional
* *
* This coincides with the format of "touch -t TIME" * "touch -t DATETIME" format: [[[[[YY]YY]MM]DD]hh]mm[.ss]
* Some, but not all, Unix "date DATETIME" commands
* move [[YY]YY] past minutes mm field (!).
* Coreutils date does it, and SUS mandates it.
* (date -s DATETIME does not support this format. lovely!)
* In bbox, this format is special-cased in date applet
* (IOW: this function assumes "touch -t" format).
*/ */
unsigned cur_year = ptm->tm_year; unsigned cur_year = ptm->tm_year;
int len = strchrnul(date_str, '.') - date_str; int len = strchrnul(date_str, '.') - date_str;