static void insert_char(char *pos, char c, uint8_t end)
{
char tmp;
/* Echo back to console */
uart_poll_out(uart_console_dev, c);
if (end == 0) {
*pos = c;
return;
}
tmp = *pos;
*(pos++) = c;
cursor_save();
while (end-- > 0) {
uart_poll_out(uart_console_dev, tmp);
c = *pos;
*(pos++) = tmp;
tmp = c;
}
/* Move cursor back to right place */
cursor_restore();
}
void del(char **str, int *pos,
UNUSED t_head *history,
UNUSED int *i_history)
{
if ((*str) && *pos < (int)strlen(*str))
{
edit_str(str, pos, 1);
cursor_save();
cursor_forward(strlen(*str) - *pos);
cursor_backward(1);
cursor_erase(strlen(*str) + 1);
cursor_restore();
cursor_save();
fflush(stdout);
write(1, "\r", 1);
write(1, history->prompt, strlen(history->prompt));
write(1, *str, strlen(*str));
cursor_restore();
fflush(stdout);
}
}
void backspace(char **str, int *pos,
UNUSED t_head *history,
UNUSED int *i_history)
{
if (*pos > 0)
{
edit_str(str, pos, 0);
--*pos;
cursor_save();
cursor_forward(strlen(*str) - *pos);
cursor_backward(1);
cursor_erase(1);
cursor_restore();
cursor_backward(1);
cursor_erase(1);
cursor_save();
fflush(stdout);
write(1, "\r", 1);
write(1, history->prompt, strlen(history->prompt));
write(1, *str, strlen(*str));
cursor_restore();
fflush(stdout);
}
}
static void del_char(char *pos, uint8_t end)
{
uart_poll_out(uart_console_dev, '\b');
if (end == 0) {
uart_poll_out(uart_console_dev, ' ');
uart_poll_out(uart_console_dev, '\b');
return;
}
cursor_save();
while (end-- > 0) {
*pos = *(pos + 1);
uart_poll_out(uart_console_dev, *(pos++));
}
uart_poll_out(uart_console_dev, ' ');
/* Move cursor back to right place */
cursor_restore();
}