+static const char *weekday(int wday)
+{
+ static const char wday_array[7][4] = {
+ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
+ };
+ return wday_array[wday];
+}
+
+static const char *monthname(int mon)
+{
+ static const char month_array[12][4] = {
+ "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+ "Jul", "Aug", "Oct", "Sep", "Nov", "Dec",
+ };
+ return month_array[mon];
+}
+
+static void get_date(struct dive *dive, int *val, char **str)
+{
+ struct tm *tm;
+ time_t when = dive->when;
+ char buffer[40];
+
+ /* 2038 problem */
+ *val = when;
+
+ tm = gmtime(&dive->when);
+ snprintf(buffer, sizeof(buffer),
+ "%s, %s %d, %d %02d:%02d",
+ weekday(tm->tm_wday),
+ monthname(tm->tm_mon),
+ tm->tm_mday, tm->tm_year + 1900,
+ tm->tm_hour, tm->tm_min);
+ *str = strdup(buffer);
+}
+
+static void get_depth(struct dive *dive, int *val, char **str)
+{
+ int len;
+ int depth = dive->maxdepth.mm;
+ int integer, frac = -1;
+ char buffer[10];
+
+ *val = depth;
+ *str = "";
+ switch (output_units.length) {
+ case METERS:
+ /* To tenths of meters */
+ depth = (depth + 49) / 100;
+ integer = depth / 10;
+ frac = depth % 10;
+ if (integer < 20)
+ break;
+ frac = -1;
+ /* Rounding? */
+ break;
+ case FEET:
+ integer = to_feet(dive->maxdepth);
+ frac = -1;
+ break;
+ default:
+ return;
+ }
+ len = snprintf(buffer, sizeof(buffer),
+ "%d", integer);
+ if (frac >= 0)
+ len += snprintf(buffer+len, sizeof(buffer)-len,
+ ".%d", frac);
+ *str = strdup(buffer);
+}
+
+static void get_duration(struct dive *dive, int *val, char **str)
+{
+ unsigned int sec = dive->duration.seconds;
+ char buffer[16];
+
+ *val = sec;
+ snprintf(buffer, sizeof(buffer), "%d:%02d", sec / 60, sec % 60);
+ *str = strdup(buffer);
+}
+