IRCX defines a user mask as follows:
NickName!UserName@HostName$ServerName
Chat Service interprets special characters in user masks according to the following table.
| ! | Specifies that what follows is a user name. |
| @ | Specifies that what follows is the domain name or IP address of the computer hosting the client. |
| $ | Specifies that what follows is a server name. |
| . | A string containing a period is interpreted as a domain name. |
| * | Wildcard character used to match any number of characters. |
| ? | Wildcard character used to match one character. |
Note The identification (Ident) of an anonymous user begins with a tilde (~) so that you can filter anonymous users.
mode #Mychannel +o piper | |
| Makes the the user with the nickname Piper the host of #MyChannel. "Piper" is interpreted as "Piper!*@*$*". | |
| Note A string without special characters (!, @, and $) is interpreted as a nickname. | |
event add user litware.com | |
| Starts monitoring all events generated by users at the site Litware.com. "Litware.com" is interpreted as "*!*@Litware.com$*". |