+ case 'D':
+ /* move cursor left */
+ if (s->esc_params[0] == 0) {
+ s->esc_params[0] = 1;
+ }
+ s->x -= s->esc_params[0];
+ if (s->x < 0) {
+ s->x = 0;
+ }
+ break;
+ case 'G':
+ /* move cursor to column */
+ s->x = s->esc_params[0] - 1;
+ if (s->x < 0) {
+ s->x = 0;
+ }
+ break;
+ case 'f':
+ case 'H':
+ /* move cursor to row, column */
+ s->x = s->esc_params[1] - 1;
+ if (s->x < 0) {
+ s->x = 0;
+ }
+ s->y = s->esc_params[0] - 1;
+ if (s->y < 0) {
+ s->y = 0;
+ }
+ break;
+ case 'J':
+ switch (s->esc_params[0]) {
+ case 0:
+ /* clear to end of screen */
+ for (y = s->y; y < s->height; y++) {
+ for (x = 0; x < s->width; x++) {
+ if (y == s->y && x < s->x) {
+ continue;
+ }
+ console_clear_xy(s, x, y);
+ }
+ }
+ break;
+ case 1:
+ /* clear from beginning of screen */
+ for (y = 0; y <= s->y; y++) {
+ for (x = 0; x < s->width; x++) {
+ if (y == s->y && x > s->x) {
+ break;
+ }
+ console_clear_xy(s, x, y);
+ }
+ }
+ break;
+ case 2:
+ /* clear entire screen */
+ for (y = 0; y <= s->height; y++) {
+ for (x = 0; x < s->width; x++) {
+ console_clear_xy(s, x, y);
+ }
+ }
+ break;
+ }