add meridiem for 12h format

clock.c

@@ -57,14 +57,14 @@ static const long number[10][LGNUM] = {
 	 {1,1,1,1,1,1,1,1,0,0,1,1,1,1,1,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1}  /* 9 */
 };
 
+char *meridiem;
+int SCHANGE = 19;
 int hour[2];
 int min[2];
 int sec[2];
 int defx=1;
 int defy=1;
 int bg = COLOR_BLACK;
-int SCHANGE = 19;
-
 bool enable_sec = 0;
 bool enable_tw = 0;
 struct tm *tm;
@@ -83,7 +83,7 @@ start(void) {
 	 refresh();
 	 if (use_default_colors() == OK);
 	 bg = -1;
-	 init_pair(1,COLOR_GREEN, COLOR_GREEN);
+	 init_pair(1,COLOR_BLACK, COLOR_GREEN);
 	 init_pair(2, bg, bg);
 	 curs_set(0);
 }
@@ -151,14 +151,18 @@ arrange_clock(int h1, int h2,
 	print_number(h2, defx, defy + 7);
 	 
 	attron(COLOR_PAIR(1));
-	 mvaddstr(defx + 1, defy + 15,"  ");
+	
+	move(defx + 1, defy + 15);
+	printw("%s",meridiem);
 	mvaddstr(defx + 3, defy + 15,"  ");
+
 	attroff(COLOR_PAIR(1));
 
 	print_number(m1, defx, defy + 19);
 	print_number(m2, defx, defy + 26);
 
 	if(enable_sec){
+
 		 attron(COLOR_PAIR(1));
 	     mvaddstr(defx + 1, defy + 34,"  ");
 		 mvaddstr(defx + 3, defy + 34,"  ");
@@ -178,7 +182,6 @@ void
 check_key(void) {
 	int c;
 	c = getch();
-
 	switch(c) {
 		case KEY_UP:
 		case 'k':
@@ -222,13 +225,20 @@ check_key(void) {
 
 void
 get_time(void) {
-	int i;
 	int ihour;
 	tm = localtime(&lt);
 	lt = time(NULL);
 
 	ihour = tm->tm_hour;
 	
+	if (enable_tw && ihour > 12) {
+		meridiem = "PM";
+	} else if (enable_tw && ihour < 12) {
+		meridiem = "AM";
+	} else {
+		meridiem = "  ";
+	}
+
 	ihour = (enable_tw && ihour > 12) ? ihour - 12 : ihour;
 	ihour = (enable_tw && !ihour) ? 12 : ihour;