* "`title(glob)`", "`author(glob)`", "`authorurl(glob)`",
"`license(glob)`", "`copyright(glob)`" - match pages that have the given
metadata, matching the specified glob.
* "`title(glob)`", "`author(glob)`", "`authorurl(glob)`",
"`license(glob)`", "`copyright(glob)`" - match pages that have the given
metadata, matching the specified glob.