MODE <channel> <+|-><b|q|e|I> $[~]<type>[:<data>] Extended bans (ban conditionals) allow different checks than the usual nick!user@host or nick!user@ip match to determine whether someone should be banned, quieted, exempted or invited. Extended bans are of the form $[~]<type>[:<data>]. The <type> is one character (case insensitive) and determines the type of match. Most types allow or require an extra field <data>. If the tilde (~) is present, the result of the comparison will be negated, unless the ban is invalid in which case it will never match. Invalid bans are ones where <data> is missing but required or where <data> is otherwise invalid as noted below. Unless noted below, all types can be used with +b, +q, +e and +I. extb Type - DESCRIPTION ------------------------------------------------------------------------ $a - Matches all logged in users $a:<mask> - Matches users logged in with a username matching the mask (* and ? wildcards) $c:<chan> - Matches users who are on the given channel; this is only valid if the channel exists and is not +s or +p. (The ops of the channel the ban is on cannot necessarily see whether the user is in the target channel, so it should not influence whether they can join either.) $o - Matches opers (most useful with +I) $r:<mask> - Matches users with a realname (gecos) matching the mask (* and ? wildcards); this can only be used with +b and +q $s:<mask> - matches users connected to a server matching the mask (* and ? wildcards); this can only be used with +b and +q $j:<chan> - matches users who are or are not banned from a specified channel $x:<mask> - Bans all users with matching nick!user@host#gecos $z - Matches all SSL users