Remade char ch -> int ch, added arrow navigation and backspace

main.c

@@ -8,9 +8,6 @@ int rows, cols;
 void clearInput() {
 	for (int i = 0; i < cols; i ++)
 		mvprintw(rows - 1, i, " ");
-	attron(A_BLINK);
-	mvprintw(rows - 1, 0, " ");
-	attroff(A_BLINK);
 }
 
 //void printContentIntoAFile(char (*content)[cols+1]) {
@@ -20,8 +17,13 @@ void clearInput() {
 //	fclose(f);
 //}
 
-void printPrompt(char* prompt) {
+void printPrompt(int* prompt, int len, int position) {
-	mvprintw(rows - 1, 0, "%s", prompt);
+	for (int i = 0; i < len; i ++) 
+		mvprintw(rows - 1, i, "%c", prompt[i]);
+		
+	attron(A_BLINK);
+	mvprintw(rows - 1, position, "");
+	attroff(A_BLINK);
 }
 
 void clearScreen() {
@@ -30,15 +32,38 @@ void clearScreen() {
 			mvprintw(i, j, " ");
 }
 
-void printContent(char (*content)[cols+1]) {	
+void printContent(int **content) {
-	for (int i = rows - 2; i > 0; i --)
+	for (int i = 0; i < rows - 2; i ++)
-		mvprintw(i, 0, "%s", content[rows - 2 - i]);
+		for (int j = 0; j < cols; j ++)
+			mvprintw(rows - 2 - i, j, "%c", content[i][j]);
 }
 
-void insertInStartContent(char (*content)[cols+1], char* toInsert) {
+void insertInStartContent(int **content, int* toInsert ) {
 	for (int i = rows - 2; i > 0 ; i --)
-		strcpy(content[i], content[i - 1]);
+		for (int j = 0; j < cols; j ++)
-	strcpy(content[0], toInsert);
+			content[i][j] = content[i - 1][j];
+	for (int i = 0; i < cols; i ++) 
+		content[0][i] = toInsert[i];
+
+}
+
+void insert(int *cmd_string, int toInsert , int position, int len) {
+	for (int i = len + 1; i > position; i --)
+		cmd_string[i] = cmd_string[i - 1];
+	cmd_string[position] = toInsert;
+}
+
+void pop(int *cmd_string, int *position, int *len) {
+	if (*position < 1)
+		return;
+		
+	for (int i = *position; i < *len; i ++) 
+		cmd_string[i] = cmd_string[i + 1];
+
+	cmd_string[(*len) - 1] = 0;
+
+	(*len) --;	
+	(*position) --;	
 }
 
 //void printStringIntoAFile(char* string) {
@@ -49,38 +74,62 @@ void insertInStartContent(char (*content)[cols+1], char* toInsert) {
 
 int main (int argc, char* argv[]) {
 	initscr();
-	cbreak();
 	keypad(stdscr, TRUE);
 	noecho();
 	start_color();
+	//cbreak();
+	keypad(stdscr, true);
 
 	getmaxyx(stdscr, rows, cols);
 	
-	char ch = ' ';
+	int ch = ' ';
 	int len = 0;
-	char cmd_string[cols];
+	int position = 0;
+	int cmd_string[cols];
+
+	memset(cmd_string, 0, 4 * cols);
+	int **content;
+
+	content = malloc(rows * sizeof (*content));
 
-	memset(cmd_string, '\0', cols);
-	char content[rows][cols];
 	for (int i = 0; i < rows; i ++) 
-		memset(&(content[i]),'\0', cols);
+		content[i] = malloc(cols * sizeof(*content[i]));
 
-	while (ch = getch()){
+	for (int i = 0; i < rows; i ++)
+		for (int j = 0; j < cols; j ++)
+			content[i][j] = 0;
+
+	printPrompt(cmd_string, len, position);
+	
+	while (1){
+		ch = getch();	
 		switch (ch) {
 			case 10: {
 				insertInStartContent(content, cmd_string);
 				len = 0;
-				memset(cmd_string, '\0', cols);
+				position = 0;
+				memset(cmd_string, 0, 4 * cols);
 			break;
 			}
+			case KEY_LEFT:
+				position -= position > 0? 1:0;
+			break;
+			case KEY_RIGHT:
+				position += position < len? 1:0;
+			break;
+			case KEY_BACKSPACE:
+				pop(cmd_string, &position, &len);
+			break;
 			default:
-				cmd_string[len] = ch;
+				insert(cmd_string, ch, position, len);
+				position ++;
 				len ++;
 			break;
 		}
 		clearScreen();
+		clearInput();
 		printContent(content);
-		printPrompt(cmd_string);
+		printPrompt(cmd_string, len, position);
 		refresh();
 
 	}