IRCMessageParser.java

int type = 0;
        if (prefix.contains("!")) {
            type = 1;
            if (prefix.contains("@")) {
                type = 2;
            }
        }

        switch (type) {
            case 0:
                name = prefix;
                break;

            case 2:
                int hostIndex = prefix.indexOf("@");
                host = prefix.substring(hostIndex + 1);
                prefix = prefix.substring(0, hostIndex - 1);

            case 1:
                int userIndex = prefix.indexOf("!");
                name = prefix.substring(0, userIndex - 1);
                user = prefix.substring(userIndex + 1);
                break;
        }