181 static History *h = NULL;  variable
317 	if (h != NULL)  in rl_initialize()
318 		history_end(h);  in rl_initialize()
340 	h = history_init();  in rl_initialize()
341 	if (!e || !h)  in rl_initialize()
344 	history(h, &ev, H_SETSIZE, INT_MAX);	/* unlimited */  in rl_initialize()
347 	el_set(e, EL_HIST, history, h);  in rl_initialize()
358 		history_end(h);  in rl_initialize()
451 	if (e == NULL || h == NULL)  in readline()
498 	history(h, &ev, H_GETSIZE);  in readline()
517 	if (h == NULL || e == NULL)  in using_history()
589 		if (history(h, &ev, H_FIRST) != 0)  in get_history_event()
646 	if (history(h, &ev, H_CURR) != 0) {  in get_history_event()
664 		history(h, &ev, H_FIRST);  in get_history_event()
679 	if (history(h, &ev, H_CURR) != 0)  in get_history_event()
685 	(void)history(h, &ev, H_SET, num);  in get_history_event()
998 	if (h == NULL || e == NULL)  in history_expand()
1243 	if (h == NULL || e == NULL)  in stifle_history()
1246 	if (history(h, &ev, H_SETSIZE, max) == 0) {  in stifle_history()
1269 	history(h, &ev, H_SETSIZE, INT_MAX);  in unstifle_history()
1430 	if (h == NULL || e == NULL)  in read_history()
1435 	if (history(h, &ev, H_LOAD, filename) == -1)  in read_history()
1437 	if (history(h, &ev, H_GETSIZE) == 0)  in read_history()
1453 	if (h == NULL || e == NULL)  in write_history()
1457 	return history(h, &ev, H_SAVE, filename) == -1 ?  in write_history()
1467 	if (h == NULL || e == NULL)  in append_history()
1475 	if (history(h, &ev, H_NSAVE_FP, (size_t)n,  fp) == -1) {  in append_history()
1496 	if (h == NULL || e == NULL)  in history_get()
1503 	if (history(h, &ev, H_CURR) != 0)  in history_get()
1511 	if (history(h, &ev, H_DELDATA, num - history_base, (void **)-1) != 0)  in history_get()
1515 	if (history(h, &ev, H_CURR) != 0)  in history_get()
1517 	if (history(h, &ev, H_NEXT_EVDATA, ev.num, &she.data) != 0)  in history_get()
1522 	(void)history(h, &ev, H_SET, curr_num);  in history_get()
1528 	(void)history(h, &ev, H_SET, curr_num);  in history_get()
1541 	if (h == NULL || e == NULL)  in add_history()
1544 	if (history(h, &ev, H_ENTER, line) == -1)  in add_history()
1547 	(void)history(h, &ev, H_GETSIZE);  in add_history()
1567 	if (h == NULL || e == NULL)  in remove_history()
1573 	if (history(h, &ev, H_DELDATA, num, &he->data) != 0) {  in remove_history()
1579 	if (history(h, &ev, H_GETSIZE) == 0)  in remove_history()
1596 	if (h == NULL || e == NULL)  in replace_history_entry()
1600 	if (history(h, &ev, H_CURR) != 0)  in replace_history_entry()
1605 	if (history(h, &ev, H_LAST) != 0)  in replace_history_entry()
1612 	if (history(h, &ev, H_NEXT_EVDATA, num, &he->data))  in replace_history_entry()
1619 	if (history(h, &ev, H_REPLACE, line, data))  in replace_history_entry()
1623 	if (history(h, &ev, H_SET, curr_num))  in replace_history_entry()
1640 	if (h == NULL || e == NULL)  in clear_history()
1643 	(void)history(h, &ev, H_CLEAR);  in clear_history()
1667 	if (history(h, &ev, H_LAST) != 0)  in history_list()
1687 	} while (history(h, &ev, H_PREV) == 0);  in history_list()
1700 	if (history(h, &ev, H_PREV_EVENT, history_offset + 1) != 0)  in current_history()
1719 	if (history(h, &ev, H_CURR) != 0)  in history_total_bytes()
1723 	(void)history(h, &ev, H_FIRST);  in history_total_bytes()
1727 	while (history(h, &ev, H_NEXT) == 0);  in history_total_bytes()
1730 	history(h, &ev, H_PREV_EVENT, curr_num);  in history_total_bytes()
1762 	if (history(h, &ev, H_LAST) != 0)  in previous_history()
1781 	if (history(h, &ev, H_LAST) != 0)  in next_history()
1799 	if (history(h, &ev, H_CURR) != 0)  in history_search()
1806 		if (history(h, &ev, direction < 0 ? H_NEXT:H_PREV) != 0)  in history_search()
1809 	(void)history(h, &ev, H_SET, curr_num);  in history_search()
1822 	return (history(h, &ev, direction < 0 ?  in history_search_prefix()
1842 	if (history(h, &ev, H_CURR) != 0)  in history_search_pos()
1846 	if (!history_set_pos(off) || history(h, &ev, H_CURR) != 0)  in history_search_pos()
1852 		if (history(h, &ev, (pos < 0) ? H_PREV : H_NEXT) != 0)  in history_search_pos()
1857 	(void)history(h, &ev,  in history_search_pos()
1960 	if (h == NULL || e == NULL)  in rl_complete()
2012 	if (h == NULL || e == NULL)  in rl_bind_key()
2033 	if (e == NULL || h == NULL)  in rl_read_key()
2048 	if (h == NULL || e == NULL)  in rl_reset_terminal()
2063 	if (h == NULL || e == NULL)  in rl_insert()
2082 	if (h == NULL || e == NULL)  in rl_insert_text()
2316 	if (h == NULL || e == NULL)  in rl_copy_text()
2345 	if (h == NULL || e == NULL)  in rl_replace_line()
2355 	if (h == NULL || e == NULL)  in rl_delete_text()