X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=date.c;h=1c1917b4e8768b0046729e19505d6f1b0845a0d8;hb=cebff98dbe3fd6177337ae4d440b81ffed797608;hp=73c063b9abf818bfd927577401048e16892759fb;hpb=a575603af20a795584d79b32c30bda10fcae5d3f;p=git.git

diff --git a/date.c b/date.c
index 73c063b9..1c1917b4 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"
 };
 
 /*
@@ -123,8 +123,6 @@ static const struct {
 	{ "IDLE", +12, 0, },	/* International Date Line East */
 };
 
-#define NR_TZ (sizeof(timezone_names) / sizeof(timezone_names[0]))
-	
 static int match_string(const char *date, const char *str)
 {
 	int i = 0;
@@ -173,7 +171,7 @@ static int match_alpha(const char *date, struct tm *tm, int *offset)
 		}
 	}
 
-	for (i = 0; i < NR_TZ; i++) {
+	for (i = 0; i < ARRAY_SIZE(timezone_names); i++) {
 		int match = match_string(date, timezone_names[i].name);
 		if (match >= 3) {
 			int off = timezone_names[i].offset;
@@ -326,7 +324,7 @@ static int match_digit(const char *date, struct tm *tm, int *offset, int *tm_gmt
 
 	/*
 	 * NOTE! We will give precedence to day-of-month over month or
-	 * year numebers in the 1-12 range. So 05 is always "mday 5",
+	 * year numbers in the 1-12 range. So 05 is always "mday 5",
 	 * unless we already have a mday..
 	 *
 	 * IOW, 01 Apr 05 parses as "April 1st, 2005".
@@ -468,12 +466,52 @@ 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 +525,8 @@ 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 +541,12 @@ 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) {
@@ -531,6 +573,22 @@ 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;
@@ -580,7 +638,7 @@ unsigned long approxidate(const char *date)
 	}
 	if (number > 0 && number < 32)
 		tm.tm_mday = number;
-	if (tm.tm_mon > now.tm_mon)
+	if (tm.tm_mon > now.tm_mon && tm.tm_year == now.tm_year)
 		tm.tm_year--;
 	return mktime(&tm);
 }