static int tab_callback(int count, int key) {
if (!rl_point) {
strip_initial_spaces += tab_width;
return 0;
}
int i;
for (i = line_start(rl_point); i < rl_point; i++) {
if (rl_line_buffer[i] != ' ') {
// do tab completion
i = rl_point;
rl_complete_internal('!');
if (i < rl_point && rl_line_buffer[rl_point-1] == ' ') {
rl_delete_text(rl_point-1, rl_point);
rl_point = rl_point-1;
}
return 0;
}
}
// indent to next tab stop
if (suppress_space()) {
spaces_suppressed += tab_width;
} else {
i = line_start(rl_point) + prompt_length;
do { rl_insert_text(" "); } while ((rl_point - i) % tab_width);
}
return 0;
}
static int space_callback(int count, int key)
{
if (!rl_point) strip_initial_spaces++;
else if (suppress_space()) spaces_suppressed++;
else rl_insert_text(" ");
return 0;
}
