0: *!user@host.domain
1: *!*user@host.domain
2: *!*@host.domain
3: *!*user@*.domain
4: *!*@*.domain
5: nick!user@host.domain
6: nick!*user@host.domain
7: nick!*@host.domain
8: nick!*user@*.domain
9: nick!*@*.domain
n00b