1336     char_u	*tail;  in expand_env_esc()  local
1390 		tail = src + 1;  in expand_env_esc()
1396 		if (*tail == '{' && !vim_isIDc('{'))  in expand_env_esc()
1398 		    tail++;	// ignore '{'  in expand_env_esc()
1399 		    while (c-- > 0 && *tail && *tail != '}')  in expand_env_esc()
1400 			*var++ = *tail++;  in expand_env_esc()
1405 		    while (c-- > 0 && *tail != NUL && ((vim_isIDc(*tail))  in expand_env_esc()
1407 			    || (*src == '%' && *tail != '%')  in expand_env_esc()
1410 			*var++ = *tail++;  in expand_env_esc()
1415 		if (src[1] == '{' && *tail != '}')  in expand_env_esc()
1417 		if (*src == '%' && *tail != '%')  in expand_env_esc()
1427 			++tail;  in expand_env_esc()
1441 		tail = src + 1;  in expand_env_esc()
1449 		tail = src;  in expand_env_esc()
1453 			&& *tail  in expand_env_esc()
1454 			&& vim_isfilec(*tail)  in expand_env_esc()
1455 			&& !vim_ispathsep(*tail))  in expand_env_esc()
1456 		    *var++ = *tail++;  in expand_env_esc()
1520 		tail = (char_u *)"";	// for gcc  in expand_env_esc()
1558 		    && (STRLEN(var) + STRLEN(tail) + 1 < (unsigned)dstlen))  in expand_env_esc()
1569 			&& vim_ispathsep(*tail))  in expand_env_esc()
1570 		    ++tail;  in expand_env_esc()
1572 		src = tail;  in expand_env_esc()