43 static buffheader_T redobuff = {{NULL, {NUL}}, NULL, 0, 0};
44 static buffheader_T old_redobuff = {{NULL, {NUL}}, NULL, 0, 0};
45 static buffheader_T recordbuff = {{NULL, {NUL}}, NULL, 0, 0};
140 	*p2 = NUL;  in get_buffcont()
167 	p[len] = NUL;  in get_recorded()
175 	p[len - 1] = NUL;  in get_recorded()
281 	if (IS_SPECIAL(c) || c == K_SPECIAL || c == NUL)  in add_char_buff()
287 	    temp[3] = NUL;  in add_char_buff()
296 	    temp[3] = NUL;  in add_char_buff()
302 	    temp[1] = NUL;  in add_char_buff()
309 static buffheader_T readbuf1 = {{NULL, {NUL}}, NULL, 0, 0};
312 static buffheader_T readbuf2 = {{NULL, {NUL}}, NULL, 0, 0};
326     if (c == NUL)  in read_readbuffers()
338 	return NUL;  in read_readbuf()
345 	if (curr->b_str[++buf->bh_index] == NUL)  in read_readbuf()
415     while (read_readbuffers(TRUE) != NUL)  in flush_buffers()
481 	while (read_readbuffers(TRUE) != NUL)  in CancelRedo()
549     while (len < 0 ? *s != NUL : s - str < len)  in AppendToRedobuffLit()
563 	if (*s == NUL && (s[-1] == '0' || s[-1] == '^'))  in AppendToRedobuffLit()
568 	if (*s == NUL || (len >= 0 && s - str >= len))  in AppendToRedobuffLit()
577 	if (c < ' ' || c == DEL || (*s == NUL && (c == '0' || c == '^')))  in AppendToRedobuffLit()
581 	if (*s == NUL && c == '0')  in AppendToRedobuffLit()
650     while (*s != NUL)  in stuffReadbuffSpec()
652 	if (*s == K_SPECIAL && s[1] != NUL && s[2] != NUL)  in stuffReadbuffSpec()
698     while (*arg != NUL)  in stuffescaped()
715 	if (*arg != NUL)  in stuffescaped()
757     if ((c = *p) != NUL)  in read_redo()
777 	    if (*++p == NUL && bp->b_next != NULL)  in read_redo()
790 	    if (c == NUL)	// cannot happen?  in read_redo()
808     while ((c = read_redo(FALSE, old_redo)) != NUL)  in copy_redo()
892     while ((c = read_redo(FALSE, FALSE)) != NUL)  in start_redo_ins()
1119 	buf[3] = NUL;  in ins_char_typebuf()
1127 	buf[idx + 3] = NUL;  in ins_char_typebuf()
1131 	buf[(*mb_char2bytes)(c, buf + idx) + idx] = NUL;  in ins_char_typebuf()
1289 	    buf[buflen] = NUL;  in gotchars()
1612 	    c = NUL;  in merge_modifyOtherKeys()
1741 		    name[i] = NUL;  in vgetc()
1923     if (c == NUL)  in safe_vgetc()
1995     if (c == NUL && typebuf.tb_len > 0)  in vpeekc_any()
2018     return (retval != NUL);  in char_avail()
2054 	else if (error || vpeekc_any() == NUL)  in getchar_common()
2098 	temp[i++] = NUL;  in getchar_common()
2166 	temp[i++] = NUL;  in f_getcharstr()
2574     if (*p_pt != NUL && mp == NULL && (State & (INSERT|NORMAL)))  in handle_mapping()
2579 	if (p_pt[mlen] == NUL)	// match  in handle_mapping()
2672 		if (*s == NUL)	    // need more characters  in handle_mapping()
2812 	    map_str = eval_map_expr(save_m_str, NUL);  in handle_mapping()
2938 	return NUL;  in vgetorpeek()
2962 	if (c != NUL && !got_int)  in vgetorpeek()
3365 		if (c == NUL)		// no character available  in vgetorpeek()
3378 						     + typebuf.tb_len] != NUL)  in vgetorpeek()
3391     } while ((c < 0 && c != K_CANCEL) || (advance && c == NUL));  in vgetorpeek()
3624 	if (p[0] == NUL || (p[0] == K_SPECIAL  in fix_input_buffer()
3645     *p = NUL;		// add trailing NUL  in fix_input_buffer()
3690     while (c1 != NUL && !aborted)  in getcmdkeycmd()
3698 	if (vgetorpeek(FALSE) == NUL)  in getcmdkeycmd()
3734 	    c1 = NUL;  // end the line  in getcmdkeycmd()