Handle ISUPPORT and look for the PREFIX parameter.
Submitted by Will Thompson @wjt
Assigned to Telepathy bugs list
Description
In bug 30635, rishi says:
The proper way to [deal with user role prefices] would be to handle the RPL_ISUPPORT numeric (http://tools.ietf.org/html/draft-brocklesby-irc-isupport-03), and look for the PREFIX parameter.