361 	    && (vim_ispathsep(path[1]) || path[1] == NUL)  in vim_findfile_init()
377 	if (*++path != NUL)  in vim_findfile_init()
380     else if (*path == NUL || !vim_isAbsName(path))  in vim_findfile_init()
384 	if (*path != NUL && path[1] == ':')  in vim_findfile_init()
390 	    drive[2] = NUL;  in vim_findfile_init()
410 	    search_ctx->ffsc_start_dir[2] = NUL;  in vim_findfile_init()
500 	while (*wc_part != NUL)  in vim_findfile_init()
521 		if (*wc_part != NUL && !vim_ispathsep(*wc_part))  in vim_findfile_init()
530 	ff_expand_buffer[len] = NUL;  in vim_findfile_init()
547 	search_ctx->ffsc_fix_path[0] = NUL;  in vim_findfile_init()
658     while (*r_ptr != NUL && *r_ptr != ';')  in vim_findfile_stopdir()
674     else if (*r_ptr == NUL)  in vim_findfile_stopdir()
823 	    file_path[0] = NUL;  in vim_findfile()
871 		if (*rest_of_wildcards != NUL)  in vim_findfile()
925 		    file_path[len] = NUL;  in vim_findfile()
967 		if (*rest_of_wildcards == NUL)  in vim_findfile()
1080 			    if (*suf == NUL)  in vim_findfile()
1326     int		c1 = NUL;  in ff_wc_equal()
1327     int		c2 = NUL;  in ff_wc_equal()
1328     int		prev1 = NUL;  in ff_wc_equal()
1329     int		prev2 = NUL;  in ff_wc_equal()
1337     for (i = 0, j = 0; s1[i] != NUL && s2[j] != NUL;)  in ff_wc_equal()
1390 	ff_expand_buffer[0] = NUL;  in ff_check_visited()
1433 	    vp->ffv_fname[0] = NUL;  in ff_check_visited()
1674 	    *curbuf->b_p_path == NUL ? p_path : curbuf->b_p_path,  in find_file_in_path()
1745 	ptr[len] = NUL;  in find_file_in_path_option()
1759 	    for (ptr = ff_file_to_find; *ptr != NUL; ++ptr)  in find_file_in_path_option()
1766 		    && (ff_file_to_find[1] == NUL  in find_file_in_path_option()
1769 			    && (ff_file_to_find[2] == NUL  in find_file_in_path_option()
1778 	    || (ff_file_to_find[0] != NUL && ff_file_to_find[1] == ':')  in find_file_in_path_option()
1836 		    if (*buf == NUL)  in find_file_in_path_option()
1872 		if (dir == NULL || *dir == NUL)  in find_file_in_path_option()
2005     while (*ptr != NUL && !vim_isfilec(*ptr))  in file_name_in_line()
2007     if (*ptr == NUL)		// nothing found  in file_name_in_line()
2081 	if (*p != NUL)  in file_name_in_line()
2130     if ((options & FNAME_INCL) && *curbuf->b_p_inex != NUL)  in find_file_name_in_path()
2152 		&& !(options & FNAME_INCL) && *curbuf->b_p_inex != NUL)  in find_file_name_in_path()
2167 	    ptr[len] = NUL;  in find_file_name_in_path()
2204     for (p = fname; *p != NUL; )  in gettail_dir()
2304     char_u	*path_option = *curbuf->b_p_path == NUL  in expand_path_option()
2313     while (*path_option != NUL)  in expand_path_option()
2317 	if (buf[0] == '.' && (buf[1] == NUL || vim_ispathsep(buf[1])))  in expand_path_option()
2328 	    if (buf[1] == NUL)  in expand_path_option()
2329 		buf[len] = NUL;  in expand_path_option()
2335 	else if (buf[0] == NUL)  in expand_path_option()
2397 			     ) && fname[j] != NUL && path_part[i][j] != NUL)  in get_path_cutoff()
2447     file_pattern[1] = NUL;  in uniquefy_paths()
2479 					     && curdir[dir_end - path] == NUL;  in uniquefy_paths()
2700 	else if (p[0] == '.' && (vim_ispathsep(p[1]) || p[1] == NUL))  in simplify_filename()
2703 		p += 1 + (p[1] != NUL);	// keep single "." or leading "./"  in simplify_filename()
2711 		if (p[1] != NUL)  in simplify_filename()
2720 	    (vim_ispathsep(p[2]) || p[2] == NUL))  in simplify_filename()
2740 		    p[-1] = NUL;  in simplify_filename()
2767 			*tail = NUL;  in simplify_filename()
2790 				*p = NUL;  in simplify_filename()
2826 			*p = NUL;  in simplify_filename()
2855     } while (*p != NUL);  in simplify_filename()