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index 51c646166f0377b6073a2bbbdfdfd46df1ca54a2..5d05ef61cfb140f004702a5ed614afa755c50670 100644 (file)
--- a/date.c
+++ b/date.c
return -1;
if (month < 2 || (year + 2) % 4)
day--;
+ if (tm->tm_hour < 0 || tm->tm_min < 0 || tm->tm_sec < 0)
+ return -1;
return (year * 365 + (year + 1) / 4 + mdays[month] + day) * 24*60*60UL +
tm->tm_hour * 60*60 + tm->tm_min * 60 + tm->tm_sec;
}
return offset * eastwest;
}
+const char *show_date_relative(unsigned long time, int tz,
+ const struct timeval *now,
+ char *timebuf,
+ size_t timebuf_size)
+{
+ unsigned long diff;
+ if (now->tv_sec < time)
+ return "in the future";
+ diff = now->tv_sec - time;
+ if (diff < 90) {
+ snprintf(timebuf, timebuf_size, "%lu seconds ago", diff);
+ return timebuf;
+ }
+ /* Turn it into minutes */
+ diff = (diff + 30) / 60;
+ if (diff < 90) {
+ snprintf(timebuf, timebuf_size, "%lu minutes ago", diff);
+ return timebuf;
+ }
+ /* Turn it into hours */
+ diff = (diff + 30) / 60;
+ if (diff < 36) {
+ snprintf(timebuf, timebuf_size, "%lu hours ago", diff);
+ return timebuf;
+ }
+ /* We deal with number of days from here on */
+ diff = (diff + 12) / 24;
+ if (diff < 14) {
+ snprintf(timebuf, timebuf_size, "%lu days ago", diff);
+ return timebuf;
+ }
+ /* Say weeks for the past 10 weeks or so */
+ if (diff < 70) {
+ snprintf(timebuf, timebuf_size, "%lu weeks ago", (diff + 3) / 7);
+ return timebuf;
+ }
+ /* Say months for the past 12 months or so */
+ if (diff < 365) {
+ snprintf(timebuf, timebuf_size, "%lu months ago", (diff + 15) / 30);
+ return timebuf;
+ }
+ /* Give years and months for 5 years or so */
+ if (diff < 1825) {
+ unsigned long years = diff / 365;
+ unsigned long months = (diff % 365 + 15) / 30;
+ int n;
+ n = snprintf(timebuf, timebuf_size, "%lu year%s",
+ years, (years > 1 ? "s" : ""));
+ if (months)
+ snprintf(timebuf + n, timebuf_size - n,
+ ", %lu month%s ago",
+ months, (months > 1 ? "s" : ""));
+ else
+ snprintf(timebuf + n, timebuf_size - n, " ago");
+ return timebuf;
+ }
+ /* Otherwise, just years. Centuries is probably overkill. */
+ snprintf(timebuf, timebuf_size, "%lu years ago", (diff + 183) / 365);
+ return timebuf;
+}
+
const char *show_date(unsigned long time, int tz, enum date_mode mode)
{
struct tm *tm;
}
if (mode == DATE_RELATIVE) {
- unsigned long diff;
struct timeval now;
gettimeofday(&now, NULL);
- if (now.tv_sec < time)
- return "in the future";
- diff = now.tv_sec - time;
- if (diff < 90) {
- snprintf(timebuf, sizeof(timebuf), "%lu seconds ago", diff);
- return timebuf;
- }
- /* Turn it into minutes */
- diff = (diff + 30) / 60;
- if (diff < 90) {
- snprintf(timebuf, sizeof(timebuf), "%lu minutes ago", diff);
- return timebuf;
- }
- /* Turn it into hours */
- diff = (diff + 30) / 60;
- if (diff < 36) {
- snprintf(timebuf, sizeof(timebuf), "%lu hours ago", diff);
- return timebuf;
- }
- /* We deal with number of days from here on */
- diff = (diff + 12) / 24;
- if (diff < 14) {
- snprintf(timebuf, sizeof(timebuf), "%lu days ago", diff);
- return timebuf;
- }
- /* Say weeks for the past 10 weeks or so */
- if (diff < 70) {
- snprintf(timebuf, sizeof(timebuf), "%lu weeks ago", (diff + 3) / 7);
- return timebuf;
- }
- /* Say months for the past 12 months or so */
- if (diff < 360) {
- snprintf(timebuf, sizeof(timebuf), "%lu months ago", (diff + 15) / 30);
- return timebuf;
- }
- /* Give years and months for 5 years or so */
- if (diff < 1825) {
- unsigned long years = (diff + 183) / 365;
- unsigned long months = (diff % 365 + 15) / 30;
- int n;
- n = snprintf(timebuf, sizeof(timebuf), "%lu year%s",
- years, (years > 1 ? "s" : ""));
- if (months)
- snprintf(timebuf + n, sizeof(timebuf) - n,
- ", %lu month%s ago",
- months, (months > 1 ? "s" : ""));
- else
- snprintf(timebuf + n, sizeof(timebuf) - n,
- " ago");
- return timebuf;
- }
- /* Otherwise, just years. Centuries is probably overkill. */
- snprintf(timebuf, sizeof(timebuf), "%lu years ago", (diff + 183) / 365);
- return timebuf;
+ return show_date_relative(time, tz, &now,
+ timebuf, sizeof(timebuf));
}
if (mode == DATE_LOCAL)
@@ -425,13 +435,19 @@ static int match_multi_number(unsigned long num, char c, const char *date, char
return end - date;
}
-/* Have we filled in any part of the time/date yet? */
+/*
+ * Have we filled in any part of the time/date yet?
+ * We just do a binary 'and' to see if the sign bit
+ * is set in all the values.
+ */
static inline int nodate(struct tm *tm)
{
- return tm->tm_year < 0 &&
- tm->tm_mon < 0 &&
- tm->tm_mday < 0 &&
- !(tm->tm_hour | tm->tm_min | tm->tm_sec);
+ return (tm->tm_year &
+ tm->tm_mon &
+ tm->tm_mday &
+ tm->tm_hour &
+ tm->tm_min &
+ tm->tm_sec) < 0;
}
/*
tm.tm_mon = -1;
tm.tm_mday = -1;
tm.tm_isdst = -1;
+ tm.tm_hour = -1;
+ tm.tm_min = -1;
+ tm.tm_sec = -1;
offset = -1;
tm_gmt = 0;
}
if (match_string(date, "months") >= 5) {
- int n = tm->tm_mon - *num;
+ int n;
+ update_tm(tm, now, 0); /* fill in date fields if needed */
+ n = tm->tm_mon - *num;
*num = 0;
while (n < 0) {
n += 12;
}
if (match_string(date, "years") >= 4) {
+ update_tm(tm, now, 0); /* fill in date fields if needed */
tm->tm_year -= *num;
*num = 0;
return end;
*num = 0;
if (tm->tm_mday < 0 && number < 32)
tm->tm_mday = number;
+ else if (tm->tm_mon < 0 && number < 13)
+ tm->tm_mon = number-1;
+ else if (tm->tm_year < 0) {
+ if (number > 1969 && number < 2100)
+ tm->tm_year = number - 1900;
+ else if (number > 69 && number < 100)
+ tm->tm_year = number;
+ else if (number < 38)
+ tm->tm_year = 100 + number;
+ /* We screw up for number = 00 ? */
+ }
}
}
-unsigned long approxidate(const char *date)
+static unsigned long approxidate_str(const char *date, const struct timeval *tv)
{
int number = 0;
struct tm tm, now;
- struct timeval tv;
time_t time_sec;
- char buffer[50];
-
- if (parse_date(date, buffer, sizeof(buffer)) > 0)
- return strtoul(buffer, NULL, 10);
- gettimeofday(&tv, NULL);
- time_sec = tv.tv_sec;
+ time_sec = tv->tv_sec;
localtime_r(&time_sec, &tm);
now = tm;
pending_number(&tm, &number);
return update_tm(&tm, &now, 0);
}
+
+unsigned long approxidate_relative(const char *date, const struct timeval *tv)
+{
+ char buffer[50];
+
+ if (parse_date(date, buffer, sizeof(buffer)) > 0)
+ return strtoul(buffer, NULL, 0);
+
+ return approxidate_str(date, tv);
+}
+
+unsigned long approxidate(const char *date)
+{
+ struct timeval tv;
+ char buffer[50];
+
+ if (parse_date(date, buffer, sizeof(buffer)) > 0)
+ return strtoul(buffer, NULL, 0);
+
+ gettimeofday(&tv, NULL);
+ return approxidate_str(date, &tv);
+}