NDG XACML example for unit tests: allow access for resource URIs
matching given regular expressions. The subject must have at least one
of a set of named attributes allocated
^http://localhost/.*$
http://localhost/resource-only-restricted
staff
http://localhost/single-subject-role-restricted
staff
http://localhost/action-and-single-subject-role-restricted
read
^http://localhost/at-least-one-of-subject-role-restricted.*$
staff
admin
postdoc