From 6b7b0427728fe31ee2d9375a36f1c27974432979 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 17 Nov 2005 12:36:30 -0800 Subject: Teach "approxidate" about weekday syntax This allows people to use syntax like "last thursday" for the approxidate. (Or, indeed, more complex "three thursdays ago", but I suspect that would be pretty unusual). NOTE! The parsing is strictly sequential, so if you do "one day before last thursday" it will _not_ do what you think it does. It will take the current time, subtract one day, and then go back to the thursday before that. So to get what you want, you'd have to write it the other way around: "last thursday and one day before" which is insane (it's usually the same as "last wednesday" _except_ if today is Thursday, in which case "last wednesday" is yesterday, and "last thursday and one day before" is eight days ago). Similarly, "last thursday one month ago" will first go back to last thursday, and then go back one month from there, not the other way around. I doubt anybody would ever use insane dates like that, but I thought I'd point out that the approxidate parsing is not exactly "standard English". Side note 2: if you want to avoid spaces (because of quoting issues), you can use any non-alphanumberic character instead. So git log --since=2.days.ago works without any quotes. Signed-off-by: Linus Torvalds Signed-off-by: Junio C Hamano --- date.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'date.c') diff --git a/date.c b/date.c index 73c063b9ab..d2a67ccf07 100644 --- a/date.c +++ b/date.c @@ -34,7 +34,7 @@ static const char *month_names[] = { }; static const char *weekday_names[] = { - "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" + "Sundays", "Mondays", "Tuesdays", "Wednesdays", "Thursdays", "Fridays", "Saturdays" }; /* @@ -531,6 +531,22 @@ static const char *approxidate_alpha(const char *date, struct tm *tm, int *num) tl++; } + for (i = 0; i < 7; i++) { + int match = match_string(date, weekday_names[i]); + if (match >= 3) { + int diff, n = *num -1; + *num = 0; + + diff = tm->tm_wday - i; + if (diff <= 0) + n++; + diff += 7*n; + + update_tm(tm, diff * 24 * 60 * 60); + return end; + } + } + if (match_string(date, "months") >= 5) { int n = tm->tm_mon - *num; *num = 0; -- cgit v1.2.3