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Teach "approxidate" about weekday syntax

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On Fri, 18 Nov 2005, David Roundy wrote:
>
> Don't forget "high noon"!  (and perhaps "tea time"?)  :)

Done.

    [torvalds@g5 git]$ ./test-date "now" "midnight" "high noon" "tea-time"
    now -> bad -> Wed Dec 31 16:00:00 1969
    now -> Fri Nov 18 08:50:54 2005

    midnight -> bad -> Wed Dec 31 16:00:00 1969
    midnight -> Fri Nov 18 00:00:00 2005

    high noon -> bad -> Wed Dec 31 16:00:00 1969
    high noon -> Thu Nov 17 12:00:00 2005

    tea-time -> bad -> Wed Dec 31 16:00:00 1969
    tea-time -> Thu Nov 17 17:00:00 2005

Thanks for pointing out tea-time.

This is also written to easily extended to allow people to add their own
important dates like Christmas and their own birthdays.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Linus Torvalds 2005-11-18 08:56:40 -08:00 committed by Junio C Hamano
parent 583122cd1b
commit a8aca418d6
1 changed files with 49 additions and 5 deletions
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54
date.c
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@ -468,12 +468,52 @@ static void update_tm(struct tm *tm, unsigned long sec)
localtime_r(&n, tm);
}
static void date_yesterday(struct tm *tm, int *num)
{
update_tm(tm, 24*60*60);
}
static void date_time(struct tm *tm, int hour)
{
if (tm->tm_hour < hour)
date_yesterday(tm, NULL);
tm->tm_hour = hour;
tm->tm_min = 0;
tm->tm_sec = 0;
}
static void date_midnight(struct tm *tm, int *num)
{
date_time(tm, 0);
}
static void date_noon(struct tm *tm, int *num)
{
date_time(tm, 12);
}
static void date_tea(struct tm *tm, int *num)
{
date_time(tm, 17);
}
static const struct special {
const char *name;
void (*fn)(struct tm *, int *);
} special[] = {
{ "yesterday", date_yesterday },
{ "noon", date_noon },
{ "midnight", date_midnight },
{ "tea", date_tea },
{ NULL }
};
static const char *number_name[] = {
"zero", "one", "two", "three", "four",
"five", "six", "seven", "eight", "nine", "ten",
};
static struct typelen {
static const struct typelen {
const char *type;
int length;
} typelen[] = {
@ -487,7 +527,8 @@ static struct typelen {
static const char *approxidate_alpha(const char *date, struct tm *tm, int *num)
{
struct typelen *tl;
const struct typelen *tl;
const struct special *s;
const char *end = date;
int n = 1, i;
@ -502,9 +543,12 @@ static const char *approxidate_alpha(const char *date, struct tm *tm, int *num)
}
}
if (match_string(date, "yesterday") > 8) {
update_tm(tm, 24*60*60);
return end;
for (s = special; s->name; s++) {
int len = strlen(s->name);
if (match_string(date, s->name) == len) {
s->fn(tm, num);
return end;
}
}
if (!*num) {