implementation of all 3 search functions

interactions.c

@@ -13,6 +13,9 @@
 
 
 extern pthread_mutex_t mutex_mid;
+extern pthread_mutex_t mutex_render;
+extern WINDOW *win_b;
+extern WINDOW *win_m;
 extern dir mid_dir;
 
 extern unsigned int terminal_height;
@@ -356,13 +359,93 @@ void paste(){
 	TODO;
 }
 void search(){
-	TODO;
+	echo();
+	unsigned long i;
+	for (i = 0; i < terminal_width -1; i++) {
+		mvwaddch(win_b, 0, i, ' ');
+	}
+	mvwaddch(win_b, 0, 0, '/');
+
+	curs_set(1);
+	echo();
+
+	timeout(-1); /* negative numbers block until enter is pressed */
+
+	unsigned int pass = 0;
+	char ch;
+	char err = 0;
+
+	wmove(win_b, 0, 1);
+	while(1) {
+		ch = wgetch(win_b);
+		if (ch == '\n') {
+			err = 0;
+			break;
+		} else if (ch == '\t') { /* tab */
+			memcpy(search_buffer + pass, mid_dir.current_file->file_name, strlen(mid_dir.current_file->file_name));
+			mvwaddstr(win_b, 0, pass+1, mid_dir.current_file->file_name);
+			pass += strlen(mid_dir.current_file->file_name);
+		} else if (ch == 127) { /* backspace */
+			if (pass > 0) {
+				pass--;
+				mvwdelch(win_b, 0, pass+1);
+			}
+		} else if (ch == 27) { /* esc key */
+			err = 1;
+			break;
+		}
+		if (ch) {
+			mvwaddch(win_b, 0, pass+1, ch);
+			search_buffer[pass] = ch;
+			pass++;
+
+			unsigned long index = (mid_dir.current_file - mid_dir.file_list);
+			unsigned long x = getmaxx(win_b);
+			for (; &mid_dir.file_list[index] < mid_dir.file_list + mid_dir.file_count; index++) {
+				if (strstr(mid_dir.file_list[index].file_name, search_buffer)) {
+					mid_dir.current_file = &mid_dir.file_list[index];
+
+					/* re-render current dir */
+					pthread_mutex_lock(&mutex_render);
+
+					werase(win_m);
+					print_dir(win_m, 1, &mid_dir);
+
+					wnoutrefresh(win_m);
+					pthread_mutex_unlock(&mutex_render);
+					break;
+				}
+			}
+
+		}
+	}
+	search_buffer[pass] = '\0';
+
+	noecho();
+	curs_set(0);
+
+	status |= (STATUS_RUN_BACKEND);
+
 }
 void search_next(){
-	TODO;
+	long index = (mid_dir.current_file - mid_dir.file_list) + 1;
+	for (; &mid_dir.file_list[index] < mid_dir.file_list + mid_dir.file_count; index++) {
+		if (strstr(mid_dir.file_list[index].file_name, search_buffer)) {
+			mid_dir.current_file = &mid_dir.file_list[index];
+			break;
+		}
+	}
+	status |= (STATUS_RUN_BACKEND);
 }
 void search_previous(){
-	TODO;
+	long index = (mid_dir.current_file - mid_dir.file_list) - 1;
+	for (; &mid_dir.file_list[index] >= mid_dir.file_list; index--) {
+		if (strstr(mid_dir.file_list[index].file_name, search_buffer)) {
+			mid_dir.current_file = &mid_dir.file_list[index];
+			break;
+		}
+	}
+	status |= (STATUS_RUN_BACKEND);
 }
 void jmp_file_index(){
 	TODO;