Autosubdomains on Lighttpd how to do?

Question

Lighttpd

How to implement autosubdomains on lighttpd server? The site is located in one folder, you need an implementation like http://(name).site.ru , but we have http://site.ru/(name)/ . Let me know if anyone has experienced this.
We have this (I skipped the rest of the code because it takes up a lot of space), but it does not work:

$HTTP["host"] =~ ".*\.сайт.ру" {

    url.rewrite-if-not-file = (
"^(.*)$" => "сайт.ру/index.php?имя=$1",
)}