250     if (*s == NUL)  in trunc_string()
253 	    *buf = NUL;  in trunc_string()
264 	if (s[e] == NUL)  in trunc_string()
267 	    buf[e] = NUL;  in trunc_string()
332 		buf[e - 1] = NUL;  in trunc_string()
345 	buf[e + 3 + len - 1] = NUL;  in trunc_string()
350 	buf[e - 1] = NUL;  in trunc_string()
1043     if (*eap->arg != NUL)  in ex_messages()
1072 	if (s != NULL && *s != NUL)  in ex_messages()
1477 	buf[3] = NUL;  in msg_putchar_attr()
1480 	buf[(*mb_char2bytes)(c, buf)] = NUL;  in msg_putchar_attr()
1623 	    if (s[1] != NUL)  in msg_outtrans_len_attr()
1696     while (*str != NUL)  in msg_outtrans_special()
1699 	if ((str == strstart || str[1] == NUL) && *str == ' ')  in msg_outtrans_special()
1731     while (*p != NUL)  in str2special_save()
1733     ga_append(&ga, NUL);  in str2special_save()
1766     if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL)  in str2special()
1774 	if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL)  in str2special()
1807     buf[1] = NUL;  in str2special()
1819     *buf = NUL;  in str2specialbuf()
1868 	    if (*lead == NUL)  in msg_prt_line()
1875     if (*s == NUL && !(list && curwin->w_lcs_chars.eol != NUL))  in msg_prt_line()
1897 	    else if (curwin->w_lcs_chars.nbsp != NUL && list  in msg_prt_line()
1902 		buf[(*mb_ptr2len)(buf)] = NUL;  in msg_prt_line()
1907 		buf[l] = NUL;  in msg_prt_line()
1934 		    c_final = NUL;  in msg_prt_line()
1946 	    else if (c == 160 && list && curwin->w_lcs_chars.nbsp != NUL)  in msg_prt_line()
1951 	    else if (c == NUL && list && curwin->w_lcs_chars.eol != NUL)  in msg_prt_line()
1954 		c_extra = NUL;  in msg_prt_line()
1955 		c_final = NUL;  in msg_prt_line()
1961 	    else if (c != NUL && (n = byte2cells(c)) > 1)  in msg_prt_line()
1965 		c_extra = NUL;  in msg_prt_line()
1966 		c_final = NUL;  in msg_prt_line()
1988 		    if (curwin->w_lcs_chars.multispace[multispace_pos] == NUL)  in msg_prt_line()
1992 		else if (list && curwin->w_lcs_chars.space != NUL)  in msg_prt_line()
2000 	if (c == NUL)  in msg_prt_line()
2177     while ((maxlen < 0 || (int)(s - str) < maxlen) && *s != NUL)  in msg_puts_display()
2261 		if (do_more_prompt(NUL))  in msg_puts_display()
2264 		(void)do_more_prompt(NUL);  in msg_puts_display()
2424     if (*get_vim_var_str(VV_SCROLLSTART) == NUL)  in inc_msg_scrolled()
2721     while ((maxlen < 0 || (int)(s - str) < maxlen) && *s != NUL)  in msg_puts_printf()
2737 		    buf[n++] = NUL;  in msg_puts_printf()
2768     if (*p != NUL && !(silent_mode && p_verbose == 0))  in msg_puts_printf()
2835     if (typed_char == NUL)  in do_more_prompt()
2842 	if (used_typed_char != NUL)  in do_more_prompt()
2845 	    used_typed_char = NUL;  in do_more_prompt()
2861 	    if (c != NUL && current_menu->strings[idx][1] != NUL)  in do_more_prompt()
3469     if (*p_vfile != NUL && verbose_fd == NULL)  in redir_write()
3506 	while (*s != NUL && (maxlen < 0 || (int)(s - str) < maxlen))  in redir_write()
3532     return redir_fd != NULL || *p_vfile != NUL  in redirecting()
3546     if (*p_vfile != NUL)  in verbose_enter()
3557     if (*p_vfile != NUL)  in verbose_leave()
3568     if (*p_vfile != NUL)  in verbose_enter_scroll()
3581     if (*p_vfile != NUL)  in verbose_leave_scroll()
3947 		    hotkp[copy_char(r + 1, hotkp, TRUE)] = NUL;  in msg_show_console_dialog()
3980 			hotkp[copy_char(r, hotkp, TRUE)] = NUL;  in msg_show_console_dialog()
4005 	    *msgp = NUL;  in msg_show_console_dialog()
4029 	    *confirm_msg = NUL;  in msg_show_console_dialog()
4042 	    hotkp[copy_char(buttons, hotkp, TRUE)] = NUL;  in msg_show_console_dialog()