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### 4.7 irc

The `irc` scheme is defined in the Internet Draft at http://www.w3.org/Addressing/draft-mirashi-url-irc-01.txt (which was never approved as an RFC). Such URLs have the form

    irc://host:port/target,needpass

and are retrieved by opening an IRC session using the function specified by `url-irc-function`.

User Option: url-irc-function

  The value of this option is a function, which is called to open an IRC connection for `irc` URLs. This function must take five arguments, host, port, channel, user and password. The channel argument specifies the channel to join immediately, and may be `nil`.

  The default is `url-irc-rcirc`, which uses the Rcirc package. Other options are `url-irc-erc` (which uses ERC) and `url-irc-zenirc` (which uses ZenIRC).