title: NGINX - url rewrite regular expression
body: <p>I have the url such as <code>example.com/page.php?username=test</code>. I want to rewrite this url into something like: <code>example.com/test</code> only if test follows the following regual expression: <code>/^[0-9a-zA-Z_-]{1,35}+$/</code>, else 404 page.</p>