Minecraft Permissions Plugin Wildcard Permissions?

I'm currently programming a Permissions plugin. I would like to know how best to make Wildcard Permissions (eg Plugman.). I have already made the star permission, but I just can't think of a good way to make the other wildcard permissions.

Do you have an idea?

I do not have what you mean

If I The permission plugman. * Forgive, the player should have all rights to PlugMan.