send_chat(socket, systemName, s.sprintf("User '%s' has joined the chat", u.name)); send_logMessage(socket, s.sprintf("User '%s' added", u.name)); send_logMessage(socket, s.sprintf("User '%s' already exists -- choose a different user name", u.name)); } ; send_logMessage(socket, s.sprintf("User '%s' has been logged out", name)); send_chat(socket, systemName, s.sprintf("User '%s' has left", name));