/* Get the previous item out of our interactive history, making it the current
line. If there is no previous history, just ding. */
int
rl_get_previous_history (int count, int key)
{
HIST_ENTRY *old_temp, *temp;
if (count < 0)
return (rl_get_next_history (-count, key));
if (count == 0 || history_list () == 0)
return 0;
/* either not saved by rl_newline or at end of line, so set appropriately. */
if (_rl_history_saved_point == -1 && (rl_point || rl_end))
_rl_history_saved_point = (rl_point == rl_end) ? -1 : rl_point;
/* If we don't have a line saved, then save this one. */
rl_maybe_save_line ();
/* If the current line has changed, save the changes. */
rl_maybe_replace_line ();
temp = old_temp = (HIST_ENTRY *)NULL;
while (count)
{
temp = previous_history ();
if (temp == 0)
break;
old_temp = temp;
--count;
}
/* If there was a large argument, and we moved back to the start of the
history, that is not an error. So use the last value found. */
if (!temp && old_temp)
temp = old_temp;
if (temp == 0)
{
rl_maybe_unsave_line ();
rl_ding ();
}
else
{
rl_replace_from_history (temp, 0);
_rl_history_set_point ();
}
return 0;
}
static int down_callback(int count, int key) {
reset_indent();
int j = line_end(rl_point);
if (j < rl_end) {
int i = line_start(rl_point);
if (i == 0) rl_point += prompt_length;
rl_point += j - i + 1;
int k = line_end(j+1);
if (rl_point > k) rl_point = k;
return 0;
} else {
if (last_hist_offset >= 0) {
history_set_pos(last_hist_offset);
last_hist_offset = -1;
}
return rl_get_next_history(count, key);
}
}