35 static int	extra_char = NUL;  // extra character to display when redrawing
72     typestr[1] = NUL;  in trigger_cmd_autocmd()
269     if (*skipwhite(p) == NUL)  in do_incsearch_highlighting()
289 	if (*p == NUL)  in do_incsearch_highlighting()
302 	    if (*skipwhite(p) == NUL)  in do_incsearch_highlighting()
327 	*end = NUL;  in do_incsearch_highlighting()
437 	if (did_do_incsearch && vpeekc() == NUL)  in may_do_incsearch_highlighting()
495 	ccline.cmdbuff[skiplen + patlen] = NUL;  in may_do_incsearch_highlighting()
560 	ccline.cmdbuff[skiplen + patlen] = NUL;  in may_do_incsearch_highlighting()
581     if (ccline.cmdbuff[skiplen + patlen] != NUL)  in may_do_incsearch_highlighting()
621     if (patlen == 0 && ccline.cmdbuff[skiplen] == NUL)  in may_adjust_incsearch_highlighting()
658     pat[patlen] = NUL;  in may_adjust_incsearch_highlighting()
738 	if (*c != NUL)  in may_add_char_to_search()
1090 	ccline.cmdbuff[ccline.cmdlen] = NUL;  in cmdline_erase_chars()
1214     extra_char = NUL;  in cmdline_insert_reg()
1351     if (get_hislen() == 0 || firstc == NUL)	// no history  in cmdline_browse_history()
1361 	lookfor[ccline.cmdpos] = NUL;  in cmdline_browse_history()
1438 		for (j = 0; p[j] != NUL; ++j)  in cmdline_browse_history()
1474 	    ccline.cmdbuff[len] = NUL;  in cmdline_browse_history()
1520     ccline.cmdbuff[0] = NUL;  in init_ccline()
1527 	ccline.cmdbuff[indent] = NUL;  in init_ccline()
1614 	firstc = NUL;  in getcmdline_int()
1703     cmdline_type = firstc == NUL ? '-' : firstc;  in getcmdline_int()
1732 	    if (*p_stl != NUL || *wp->w_p_stl != NUL)  in getcmdline_int()
1959 	if (c == NUL || c == K_ZERO)	    // NUL is stored as NL  in getcmdline_int()
2006 		ccline.cmdbuff[ccline.cmdlen] = NUL;  in getcmdline_int()
2285 		    extra_char = NUL;  in getcmdline_int()
2306 		extra_char = NUL;  in getcmdline_int()
2307 		if (c != NUL)  in getcmdline_int()
2367 		IObuff[j] = NUL;	// exclude composing chars  in getcmdline_int()
2403 	if (xpc.xp_context == EXPAND_NOTHING && (KeyTyped || vpeekc() == NUL))  in getcmdline_int()
2418 	    if (vpeekc() == NUL)  in getcmdline_int()
2441 	if (ccline.cmdlen && firstc != NUL  in getcmdline_int()
2445 				       histype == HIST_SEARCH ? firstc : NUL);  in getcmdline_int()
2575 	if (p[i] != NUL && p[i] != ',' && p[i] != ':')  in check_opt_wim()
2588 	if (*p == NUL)  in check_opt_wim()
2705     if (ccline.cmdfirstc != NUL)  in set_cmdspos()
2892 			p[line_ga.ga_len] = NUL;  in getexmodeline()
2915 		p[line_ga.ga_len] = NUL;  in getexmodeline()
2933 		p[line_ga.ga_len] = NUL;  in getexmodeline()
2965 		    p[--line_ga.ga_len] = NUL;  in getexmodeline()
2969 		    p[line_ga.ga_len] = NUL;  in getexmodeline()
3050 		*pend = NUL;  in getexmodeline()
3141 	cmdspos = ((ccline.cmdfirstc != NUL) ? 1 : 0) + ccline.cmdindent;  in redrawcmd_preedit()
3228     ccline.cmdbuff[ccline.cmdlen] = NUL;  in realloc_cmdbuff()
3330 			nc = NUL;  in draw_cmdline()
3338 			pc = NUL;  in draw_cmdline()
3415     extra_char = NUL;  in unputcmdline()
3477 	ccline.cmdbuff[ccline.cmdlen] = NUL;  in put_on_cmdline()
3702 	while (*s != NUL)  in cmdline_paste_str()
3752     if (ccline.cmdfirstc != NUL)  in redrawcmdprompt()
3759 	if (ccline.cmdfirstc != NUL)  in redrawcmdprompt()
3794     if (extra_char != NUL)  in redrawcmd()
3914 								*p != NUL; ++p)  in vim_strsave_fnameescape()
3917     buf[j] = NUL;  in vim_strsave_fnameescape()
3936     if (p != NULL && (*p == '>' || *p == '+' || (*p == '-' && p[1] == NUL)))  in vim_strsave_fnameescape()
4106 	rettv->vval.v_string[1] = NUL;  in f_getcmdtype()
4125 	return NUL;  in get_cmdline_type()
4126     if (p->cmdfirstc == NUL)  in get_cmdline_type()
4193     if (*p_cedit == NUL)  in check_cedit()
4495     return cmdwin_type != 0 && get_cmdline_type() == NUL;  in is_in_cmdwin()
4531     ga_append(&ga, NUL);  in script_get()
4596 	    *p = NUL;  in get_user_input()
4643 		getcmdline_prompt(secret ? NUL : '@', p, get_echo_attr(),  in get_user_input()