52 public POSITION header_start_pos = NULL_POSITION;
56 public POSITION osc8_linepos = NULL_POSITION;
57 public POSITION osc8_match_start = NULL_POSITION;
58 public POSITION osc8_match_end = NULL_POSITION;
59 public POSITION osc8_params_start = NULL_POSITION;
60 public POSITION osc8_params_end = NULL_POSITION;
61 public POSITION osc8_uri_start = NULL_POSITION;
62 public POSITION osc8_uri_end = NULL_POSITION;
63 public POSITION osc8_text_start = NULL_POSITION;
64 public POSITION osc8_text_end = NULL_POSITION;
288 		if (pos == NULL_POSITION)  in repaint_hilite()
314 	if (start_attnpos == NULL_POSITION)  in clear_attn()
318 	start_attnpos = end_attnpos = NULL_POSITION;  in clear_attn()
331 		if (pos == NULL_POSITION)  in clear_attn()
335 		     (epos == NULL_POSITION || epos > old_start_attnpos))  in clear_attn()
380 	osc8_linepos = NULL_POSITION;  in undo_osc8()
405 	prep_startpos = prep_endpos = NULL_POSITION;  in clr_hlist()
519 	if (epos != NULL_POSITION && epos <= n->r.hl_startpos)  in hilited_range_attr()
529 	header_start_pos = (header_lines == 0) ? NULL_POSITION : pos;  in set_header()
530 	if (header_start_pos != NULL_POSITION)  in set_header()
536 			if (pos == NULL_POSITION) break;  in set_header()
547 	return (header_start_pos != NULL_POSITION &&  in pos_in_header()
577 	while (pos != NULL_POSITION)  in next_unfiltered()
579 		prep_hilite(pos, NULL_POSITION, 1);  in next_unfiltered()
595 	int start_col = col_from_pos(line_pos, start_pos, NULL_POSITION, -1);  in shift_visible()
607 		int eol_col = col_from_pos(line_pos, NULL_POSITION, end_pos, end_col) - swidth;  in shift_visible()
632 	    start_attnpos != NULL_POSITION &&   in is_hilited_attr()
634 	     (epos == NULL_POSITION || epos > start_attnpos))  in is_hilited_attr()
641 	if (osc8_linepos != NULL_POSITION &&   in is_hilited_attr()
642 			pos < osc8_text_end && (epos == NULL_POSITION || epos > osc8_text_start))  in is_hilited_attr()
1058 	if (scrpos.pos == NULL_POSITION)  in hilite_screen()
1106 			if (pos == NULL_POSITION)  in search_pos()
1156 		while (pos == NULL_POSITION)  in search_pos()
1164 		while (pos == NULL_POSITION)  in search_pos()
1217 				return NULL_POSITION;  in get_lastlinepos()
1308 	if (clickpos != NULL_POSITION)  in osc8_param_match()
1433 		if (linepos == osc8_linepos && clickpos == NULL_POSITION)  in osc8_search_line()
1502 	if (pos == NULL_POSITION)  in search_range()
1506 	if ((search_type & SRCH_WRAP) && endpos == NULL_POSITION)  in search_range()
1524 		if ((endpos != NULL_POSITION && !(search_type & SRCH_WRAP) &&  in search_range()
1560 		if (pos == NULL_POSITION)  in search_range()
1577 					if (pos == NULL_POSITION)  in search_range()
1583 				if (pos != NULL_POSITION) {  in search_range()
1621 …if (osc8_search_line(search_type, linepos, line, line_len, osc8_search_param, NULL_POSITION, &matc…  in search_range()
1647 		     prep_startpos == NULL_POSITION ||  in search_range()
1748 	if (osc8_linepos != NULL_POSITION && (curr_sindex = onscreen(osc8_linepos)) >= 0)  in osc8_search()
1754 		if (pos != NULL_POSITION)  in osc8_search()
1756 …if (osc8_search_line(search_type, osc8_linepos, line, line_len, param, NULL_POSITION, &matches) !=…  in osc8_search()
1775 	if (pos == NULL_POSITION)  in osc8_search()
1781 	match = search_range(pos, NULL_POSITION, search_type | SRCH_OSC8, matches, -1, &pos, NULL, NULL);  in osc8_search()
1809 	if (linepos == NULL_POSITION)  in osc8_click()
1811 	clickpos = pos_from_col(linepos, col, NULL_POSITION, -1);  in osc8_click()
1812 	if (clickpos == NULL_POSITION)  in osc8_click()
1814 	if (forw_raw_line(linepos, &line, &line_len) == NULL_POSITION)  in osc8_click()
1866 	if (pos == NULL_POSITION)  in osc8_read_selected()
1891 	if (osc8_linepos == NULL_POSITION)  in osc8_open()
1968 	if (osc8_linepos == NULL_POSITION)  in osc8_jump()
2046 	POSITION lastlinepos = NULL_POSITION;  in search()
2123 	if (pos == NULL_POSITION)  in search()
2138 	n = search_range(pos, NULL_POSITION, search_type, n, -1,  in search()
2168 		if (lastlinepos != NULL_POSITION)  in search()
2218 		max_epos = NULL_POSITION;  in prep_hilite()
2225 	if (epos == NULL_POSITION || (max_epos != NULL_POSITION && epos > max_epos))  in prep_hilite()
2234 	if (prep_startpos == NULL_POSITION ||  in prep_hilite()
2235 	    (epos != NULL_POSITION && epos < prep_startpos) ||  in prep_hilite()
2250 		if (epos != NULL_POSITION && epos <= prep_endpos)  in prep_hilite()
2276 	if (epos == NULL_POSITION || epos > spos)  in prep_hilite()
2285 			if (prep_endpos == NULL_POSITION || new_epos > prep_endpos)  in prep_hilite()
2294 			if (prep_endpos == NULL_POSITION || nprep_endpos > prep_endpos)  in prep_hilite()
2300 					if (epos == NULL_POSITION)  in prep_hilite()
2307 			if (prep_startpos == NULL_POSITION || nprep_startpos < prep_startpos)  in prep_hilite()
2313 					if (spos == NULL_POSITION)  in prep_hilite()