CANONUSER
{ '#', CANONNET }, { '@', CANONHOST }, { ':', CANONUSER },
if ((rp[0] & 0377) == CANONUSER)
nodetype != CANONUSER)
case CANONUSER:
while (*tv != NULL && (**tv & 0377) != CANONUSER)
(pvp[4][0] & 0377) != CANONUSER ||
case CANONUSER:
nexttoken == CANONUSER ||
nexttoken == CANONUSER ||
type = CANONUSER;