-* user(username)
-
- Tests whether the attachment is being uploaded by a user with the
- specified username. If openid is enabled, an openid can also be put here.
-
-* adminuser()
-
- Tests whether the attachment is being uploded by one of the wiki admins.
-
-* ip(address)
-
- Tests whether the attacment is being uploaded from the specified IP
- address.
-
-* mimetype(foo/bar)
-
- This checks the MIME type of the attachment. You can include a glob
- in the type, for example `mimetype(image/*)`.
-
-* virusfree()
+* "`mimetype(foo/bar)`" - This checks the MIME type of the attachment. You can
+ include a glob in the type, for example `mimetype(image/*)`.