macro_rules! make_irc_command_enum {

    ($variant:ident) => {
        $variant
    };

    ($($variant:ident: $value:expr),+) => {
        #[allow(non_camel_case_types)]
        #[derive(Debug)]
        pub enum IrcCommand {
            UNKNOWN,
            $($variant),+
        }

        impl From<&str> for IrcCommand {
            fn from(command_str: &str) -> Self {
                match command_str {
                    $($value => Self::$variant,)+
                    _ => Self::UNKNOWN,
                }
            }
        }
    };
}

make_irc_command_enum!(
    ADMIN: "ADMIN",
    AWAY: "AWAY",
    CNOTICE: "CNOTICE",
    CPRIVMSG: "CPRIVMSG",
    CONNECT: "CONNECT",
    DIE: "DIE",
    ENCAP: "ENCAP",
    ERROR: "ERROR",
    HELP: "HELP",
    INFO: "INFO",
    INVITE: "INVITE",
    ISON: "ISON",
    JOIN: "JOIN",
    KICK: "KICK",
    KILL: "KILL",
    KNOCK: "KNOCK",
    LINKS: "LINKS",
    LIST: "LIST",
    LUSERS: "LUSERS",
    MODE: "MODE",
    MOTD: "MOTD",
    NAMES: "NAMES",
    NICK: "NICK",
    NOTICE: "NOTICE",
    OPER: "OPER",
    PART: "PART",
    PASS: "PASS",
    PING: "PING",
    PONG: "PONG",
    PRIVMSG: "PRIVMSG",
    QUIT: "QUIT",
    REHASH: "REHASH",
    RULES: "RULES",
    SERVER: "SERVER",
    SERVICE: "SERVICE",
    SERVLIST: "SERVLIST",
    SQUERY: "SQUERY",
    SQUIT: "SQUIT",
    SETNAME: "SETNAME",
    SILENCE: "SILENCE",
    STATS: "STATS",
    SUMMON: "SUMMON",
    TIME: "TIME",
    TOPIC: "TOPIC",
    TRACE: "TRACE",
    USER: "USER",
    USERHOST: "USERHOST",
    USERIP: "USERIP",
    USERS: "USERS",
    VERSION: "VERSION",
    WALLOPS: "WALLOPS",
    WATCH: "WATCH",
    WHO: "WHO",
    WHOIS: "WHOIS",
    WHOWAS: "WHOWAS",
    RPL_WELCOME: "001",
    RPL_YOURHOST: "002",
    RPL_CREATED: "003",
    RPL_MYINFO: "004",
    RPL_BOUNCE: "005",
    RPL_TRACELINK: "200",
    RPL_TRACECONNECTING: "201",
    RPL_TRACEHANDSHAKE: "202",
    RPL_TRACEUNKNOWN: "203",
    RPL_TRACEOPERATOR: "204",
    RPL_TRACEUSER: "205",
    RPL_TRACESERVER: "206",
    RPL_TRACESERVICE: "207",
    RPL_TRACENEWTYPE: "208",
    RPL_TRACECLASS: "209",
    RPL_TRACERECONNECT: "210",
    RPL_STATSLINKINFO: "211",
    RPL_STATSCOMMANDS: "212",
    RPL_STATSCLINE: "213",
    RPL_STATSNLINE: "214",
    RPL_STATSILINE: "215",
    RPL_STATSKLINE: "216",
    RPL_STATSQLINE: "217",
    RPL_STATSYLINE: "218",
    RPL_ENDOFSTATS: "219",
    RPL_UMODEIS: "221",
    RPL_SERVICEINFO: "231",
    RPL_ENDOFSERVICES: "232",
    RPL_SERVICE: "233",
    RPL_SERVLIST: "234",
    RPL_SERVLISTEND: "235",
    RPL_STATSVLINE: "240",
    RPL_STATSLLINE: "241",
    RPL_STATSUPTIME: "242",
    RPL_STATSOLINE: "243",
    RPL_STATSHLINE: "244",
    RPL_STATSPING: "246",
    RPL_STATSBLINE: "247",
    RPL_STATSDLINE: "250",
    RPL_LUSERCLIENT: "251",
    RPL_LUSEROP: "252",
    RPL_LUSERUNKNOWN: "253",
    RPL_LUSERCHANNELS: "254",
    RPL_LUSERME: "255",
    RPL_ADMINME: "256",
    RPL_ADMINLOC1: "257",
    RPL_ADMINLOC2: "258",
    RPL_ADMINEMAIL: "259",
    RPL_TRACELOG: "261",
    RPL_TRACEEND: "262",
    RPL_TRYAGAIN: "263",
    RPL_NONE: "300",
    RPL_AWAY: "301",
    RPL_USERHOST: "302",
    RPL_ISON: "303",
    RPL_UNAWAY: "305",
    RPL_NOWAWAY: "306",
    RPL_WHOISUSER: "311",
    RPL_WHOISSERVER: "312",
    RPL_WHOISOPERATOR: "313",
    RPL_WHOWASUSER: "314",
    RPL_ENDOFWHO: "315",
    RPL_WHOISCHANOP: "316",
    RPL_WHOISIDLE: "317",
    RPL_ENDOFWHOIS: "318",
    RPL_WHOISCHANNELS: "319",
    RPL_LISTSTART: "321",
    RPL_LIST: "322",
    RPL_LISTEND: "323",
    RPL_CHANNELMODEIS: "324",
    RPL_UNIQOPIS: "325",
    RPL_NOTOPIC: "331",
    RPL_TOPIC: "332",
    RPL_INVITING: "341",
    RPL_SUMMONING: "342",
    RPL_INVITELIST: "346",
    RPL_ENDOFINVITELIST: "347",
    RPL_EXCEPTLIST: "348",
    RPL_ENDOFEXCEPTLIST: "349",
    RPL_VERSION: "351",
    RPL_WHOREPLY: "352",
    RPL_NAMREPLY: "353",
    RPL_KILLDONE: "361",
    RPL_CLOSING: "362",
    RPL_CLOSEEND: "363",
    RPL_LINKS: "364",
    RPL_ENDOFLINKS: "365",
    RPL_ENDOFNAMES: "366",
    RPL_BANLIST: "367",
    RPL_ENDOFBANLIST: "368",
    RPL_ENDOFWHOWAS: "369",
    RPL_INFO: "371",
    RPL_MOTD: "372",
    RPL_INFOSTART: "373",
    RPL_ENDOFINFO: "374",
    RPL_MOTDSTART: "375",
    RPL_ENDOFMOTD: "376",
    RPL_YOUREOPER: "381",
    RPL_REHASHING: "382",
    RPL_YOURESERVICE: "383",
    RPL_MYPORTIS: "384",
    RPL_TIME: "391",
    RPL_USERSSTART: "392",
    RPL_USERS: "393",
    RPL_ENDOFUSERS: "394",
    RPL_NOUSERS: "395",
    ERR_NOSUCHNICK: "401",
    ERR_NOSUCHSERVER: "402",
    ERR_NOSUCHCHANNEL: "403",
    ERR_CANNOTSENDTOCHAN: "404",
    ERR_TOOMANYCHANNELS: "405",
    ERR_WASNOSUCHNICK: "406",
    ERR_TOOMANYTARGETS: "407",
    ERR_NOSUCHSERVICE: "408",
    ERR_NOORIGIN: "409",
    ERR_NORECIPIENT: "411",
    ERR_NOTEXTTOSEND: "412",
    ERR_NOTOPLEVEL: "413",
    ERR_WILDTOPLEVEL: "414",
    ERR_BADMASK: "415",
    ERR_UNKNOWNCOMMAND: "421",
    ERR_NOMOTD: "422",
    ERR_NOADMININFO: "423",
    ERR_FILEERROR: "424",
    ERR_NONICKNAMEGIVEN: "431",
    ERR_ERRONEUSNICKNAME: "432",
    ERR_NICKNAMEINUSE: "433",
    ERR_NICKCOLLISION: "436",
    ERR_UNAVAILRESOURCE: "437",
    ERR_USERNOTINCHANNEL: "441",
    ERR_NOTONCHANNEL: "442",
    ERR_USERONCHANNEL: "443",
    ERR_NOLOGIN: "444",
    ERR_SUMMONDISABLED: "445",
    ERR_USERSDISABLED: "446",
    ERR_NOTREGISTERED: "451",
    ERR_NEEDMOREPARAMS: "461",
    ERR_ALREADYREGISTERED: "462",
    ERR_NOPERMFORHOST: "463",
    ERR_PASSWDMISMATCH: "464",
    ERR_YOUREBANNEDCREEP: "465",
    ERR_YOUWILLBEBANNED: "466",
    ERR_KEYSET: "467",
    ERR_CHANNELISFULL: "471",
    ERR_UNKNOWNMODE: "472",
    ERR_INVITEONLYCHAN: "473",
    ERR_BANNEDFROMCHAN: "474",
    ERR_BADCHANNELKEY: "475",
    ERR_BADCHANMASK: "476",
    ERR_NOCHANMODES: "477",
    ERR_BANLISTFULL: "478",
    ERR_NOPRIVILEGES: "481",
    ERR_CHANOPRIVSNEEDED: "482",
    ERR_CANTKILLSERVER: "483",
    ERR_RESTRICTED: "484",
    ERR_UNIQOPRIVSNEEDED: "485",
    ERR_NOOPERHOST: "491",
    ERR_NOSERVICEHOST: "492",
    ERR_UMODEUNKNOWNFLAG: "501",
    ERR_USERSDONTMATCH: "502"
);