1291 expand_env_save(char_u *src)  in expand_env_save()  argument
1293     return expand_env_save_opt(src, FALSE);  in expand_env_save()
1301 expand_env_save_opt(char_u *src, int one)  in expand_env_save_opt()  argument
1307 	expand_env_esc(src, p, MAXPATHL, FALSE, one, NULL);  in expand_env_save_opt()
1319     char_u	*src,		// input string e.g. "$HOME/vim.hlp"  in expand_env()  argument
1323     expand_env_esc(src, dst, dstlen, FALSE, FALSE, NULL);  in expand_env()
1335     char_u	*src;  in expand_env_esc()  local
1347     src = skipwhite(srcp);  in expand_env_esc()
1349     while (*src && dstlen > 0)  in expand_env_esc()
1353 	if (src[0] == '`' && src[1] == '=')  in expand_env_esc()
1357 	    var = src;  in expand_env_esc()
1358 	    src += 2;  in expand_env_esc()
1359 	    (void)skip_expr(&src, NULL);  in expand_env_esc()
1360 	    if (*src == '`')  in expand_env_esc()
1361 		++src;  in expand_env_esc()
1362 	    len = src - var;  in expand_env_esc()
1372 	if ((*src == '$'  in expand_env_esc()
1378 		|| *src == '%'  in expand_env_esc()
1380 		|| (*src == '~' && at_start))  in expand_env_esc()
1388 	    if (*src != '~')				// environment var  in expand_env_esc()
1390 		tail = src + 1;  in expand_env_esc()
1407 			    || (*src == '%' && *tail != '%')  in expand_env_esc()
1415 		if (src[1] == '{' && *tail != '}')  in expand_env_esc()
1417 		if (*src == '%' && *tail != '%')  in expand_env_esc()
1423 		    if (src[1] == '{')  in expand_env_esc()
1425 		    if (*src == '%')  in expand_env_esc()
1436 	    else if (  src[1] == NUL  in expand_env_esc()
1437 		    || vim_ispathsep(src[1])  in expand_env_esc()
1438 		    || vim_strchr((char_u *)" ,\t\n", src[1]) != NULL)  in expand_env_esc()
1441 		tail = src + 1;  in expand_env_esc()
1449 		tail = src;  in expand_env_esc()
1572 		src = tail;  in expand_env_esc()
1587 	    if (src[0] == '\\' && src[1] != NUL)  in expand_env_esc()
1589 		*dst++ = *src++;  in expand_env_esc()
1592 	    else if ((src[0] == ' ' || src[0] == ',') && !one)  in expand_env_esc()
1596 		*dst++ = *src++;  in expand_env_esc()
1599 		if (startstr != NULL && src - startstr_len >= srcp  in expand_env_esc()
1600 			&& STRNCMP(src - startstr_len, startstr,  in expand_env_esc()