if (data[i] == '\b') {
        int new_line = 0, new_col = 0;
        if (out->buffer_pos.column == 0) {
        new_line = out->buffer_pos.line - 1;
        new_col = out->screen_width;
        } else {
        new_line = out->buffer_pos.line;
        new_col = out->buffer_pos.column - 1;
        }
        output_set_position(out, new_line, new_col);
    }