Moodle Rewrite Rule

I emailed the group earlier regarding Nginx and Moodle, but have more
specific information.

From the Moodle documentation, they are saying that:

“Your web server needs to be configured to allow the part of the URL
after
a script name to be passed directly to the script.”

and that in order to do that, the following Apache setting needs to be
set:

AcceptPathInfo on

and that this rewrite rule needs to be set up:

RewriteRule ^([^?]+?.php)(/.+)$ $1?file=$2 [QSA]

How do I accomplish the same in Nginx?