Merge pull request #3 from tilpner/refactor

Refactor

6 files changed, 1352 insertions, 151 deletions

diff --git a/src/callback.rs b/src/callback.rs
index c62ebf8..b2027f6 100644
--- a/src/callback.rs
+++ b/src/callback.rs
@@ -1,15 +1,15 @@
-pub struct Callback<A: Sized + Send> {
-    items: Vec<fn(A)>
+pub struct Callback<A: Sized> {
+    items: Vec<fn(&mut A)>
 }
 
-impl<A: Sized + Clone + Send> Callback<A> {
+impl<A: Sized> Callback<A> {
     pub fn new() -> Callback<A> {
         Callback { items: Vec::new() }
     }
-    pub fn register(&mut self, f: &fn(A)) {
-        self.items.push(*f)
+    pub fn register(&mut self, f: fn(&mut A)) {
+        self.items.push(f)
     }
-    pub fn fire(&self, v: &A) {
-        for _ in self.items.iter().map(|&c| c(v.clone())) {}
+    pub fn fire(&self, v: &mut A) {
+        for _ in self.items.iter().map(|&c| c(v)) {}
     }
 }
diff --git a/src/event.rs b/src/event.rs
deleted file mode 100644
index b8e9743..0000000
--- a/src/event.rs
+++ /dev/null
@@ -1,50 +0,0 @@
-use ident::Ident;
-
-use std::borrow::ToOwned;
-
-#[deriving(Clone)]
-pub struct Event {
-    pub prefix: String,
-    pub command: String,
-    pub content: Vec<String>
-}
-
-pub trait ParseResult {
-    fn parse(event: Event) -> Option<Self>;
-}
-
-pub const PING: &'static str = "PING";
-
-pub const PRIVMSG: &'static str = "PRIVMSG";
-
-fn join(v: Vec<String>, from: uint) -> String {
-    let mut msg = if v[from].chars().next().unwrap() == ':' {
-        v[from][][1..].to_owned()
-    } else { v[from].clone() };
-    for m in v.iter().skip(from + 1) {
-        msg.push_str(" ");
-        msg.push_str(m.trim_right());
-    }
-    msg
-}
-
-pub struct PrivMsg {
-    pub from: Ident,
-    pub to: String,
-    pub content: String
-}
-
-impl ParseResult for PrivMsg {
-    fn parse(event: Event) -> Option<PrivMsg> {
-        let from = Ident::parse(event.prefix[]);
-        let to = event.content[0].clone();
-        match from {
-            Some(from) => Some(PrivMsg {
-                from: from,
-                to: to,
-                content: join(event.content, 1)
-            }),
-            None => None
-        }
-    }
-}
diff --git a/src/ident.rs b/src/ident.rs
index 6a01d12..0008d53 100644
--- a/src/ident.rs
+++ b/src/ident.rs
@@ -3,7 +3,7 @@ use std::borrow::ToOwned;
 
 static PATTERN: Regex = regex!(":(.*)!(.*)@(.*)");
 
-#[deriving(Show, Clone)]
+#[derive(Debug, Clone)]
 pub struct Ident {
     pub nickname: String,
     pub user: String,
diff --git a/src/lib.rs b/src/lib.rs
index 6d0b42d..577770d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,14 +1,27 @@
-#![feature(globs, phase, slicing_syntax, macro_rules, unboxed_closures)]
+#![feature(plugin, collections)]
+#![plugin(regex_macros)]
 
-#[phase(plugin)]
-extern crate regex_macros;
 extern crate regex;
-
-#[phase(plugin, link)]
+#[macro_use]
 extern crate log;
+extern crate eventual;
 
 pub mod server;
 pub mod color;
 pub mod ident;
 pub mod callback;
-pub mod event;
+pub mod message;
+
+use std::io;
+use std::result;
+
+#[derive(Debug)]
+pub enum IrscError {
+    Io(io::Error),
+    AlreadyConnected,
+    NotConnected
+}
+
+pub type Result<T> = result::Result<T, IrscError>;
+
+pub const DEBUG: bool = cfg!(not(ndebug));
diff --git a/src/message.rs b/src/message.rs
new file mode 100644
index 0000000..fd77aef
--- /dev/null
+++ b/src/message.rs
@@ -0,0 +1,1207 @@
+#![allow(non_camel_case_types)]
+
+use std::str::FromStr;
+use std::string::{ ToString };
+use std::borrow::{ Cow, Borrow, ToOwned };
+
+#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
+pub enum MsgType {
+    /// Plain old IRC messages, as defined in [rfc2812][rfc]
+    /// rfc: http://tools.ietf.org/html/rfc2812
+    Irc,
+    /// Ctcp messages, wrapped in \u{1}
+    Ctcp
+}
+
+#[derive(Debug, PartialEq, Eq, Hash, Clone)]
+pub struct Message<'a> {
+    pub prefix: Option<Cow<'a, String>>,
+    pub command: Cow<'a, String>,
+    pub content: Vec<Cow<'a, String>>,
+    pub suffix: Option<Cow<'a, String>>,
+    pub msg_type: MsgType
+}
+
+impl<'a> Message<'a> {
+    pub fn new(prefix: Option<Cow<'a, String>>, command: Cow<'a, String>, content: Vec<Cow<'a, String>>, suffix: Option<Cow<'a, String>>, msg_type: MsgType) -> Message<'a> {
+        Message {
+            prefix: prefix,
+            command: command,
+            content: content,
+            suffix: suffix,
+            msg_type: msg_type
+        }
+    }
+}
+
+impl<'a> FromStr for Message<'a> {
+    type Err = ::IrscError;
+    fn from_str(i: &str) -> Result<Message<'a>, ::IrscError> {
+        info!("Attempting to parse message: {}", i);
+        let len = i.len();
+        let mut s = i;
+
+        let msg_type = if s.chars().next() == Some('\u{1}') { MsgType::Ctcp } else { MsgType::Irc };
+
+        let prefix = if len >= 1 && s.chars().next() == Some(':') {
+            s.find(' ').map(|i| {
+                let p = s.slice_chars(1, i).to_owned();
+                s = &s[i + 1..];
+                p
+            })
+        } else { None };
+
+        let command = s.find(' ').map(|i| {
+            let p = s.slice_chars(0, i).to_owned();
+            s = &s[i..];
+            p
+        }).map(|c| c.parse()).map(|c| Some(Cow::Owned(c.unwrap())));
+
+        // TODO: Parse last non-suffix argument as suffix if no suffix
+        // with colon is available.
+        let mut content = Vec::with_capacity(15);
+        let mut suffix = None;
+        while s.len() > 0 {
+            if s.chars().next() == Some(':') {
+                suffix = Some(s[1..].to_owned());
+                break
+            }
+            s.find(' ').map(|i| {
+                if i > 0 {
+                    content.push(Cow::Owned(s.slice_chars(0, i).to_owned()));
+                    s = &s[i..];
+                }
+            });
+            if s.chars().next() == Some(' ') { s = &s[1..] };
+        }
+
+        command.map(move |c|
+            Ok(Message::new(prefix.map(|p| Cow::Owned(p)),
+                c.unwrap(),
+                content,
+                suffix.map(|s| Cow::Owned(s)),
+                msg_type
+            ))
+        ).unwrap()
+
+    }
+}
+
+impl<'a> ToString for Message<'a> {
+    fn to_string(&self) -> String {
+        let mut s = String::with_capacity(512);
+        if let Some(ref p) = self.prefix {
+            s.push(':');
+            s.push_str(&p);
+            s.push(' ');
+        }
+
+        s.push_str(&self.command);
+        s.push(' ');
+
+        for part in self.content.iter() {
+            s.push_str(&part);
+            s.push(' ');
+        }
+
+        if let Some(ref p) = self.suffix {
+            s.push(':');
+            s.push_str(&p);
+        }
+
+        s
+
+    }
+}
+
+/*
+pub trait Command {
+    fn name(&self) -> String;
+    fn to_message(&self) -> Message;
+    fn from_message(msg: &Message) -> Option<Self>
+}
+
+macro_rules! command (
+    ($name: ident { $($field: ident: $t: ty),* } to $to_msg: expr; from $from_msg: expr;) => (
+        pub struct $name {
+            $(pub $field: $t),*
+        }
+
+        impl Command for $name {
+            fn name(&self) -> String { stringify!($name).to_owned() }
+            fn to_message(&self) -> Message { ($to_msg)(self) }
+            fn from_message(msg: &Message) -> Option<$name> { ($from_msg)(msg) }
+        }
+    )
+);*/
+
+/*
+command!(Pass { password: String }
+         to |&:s: &Pass| Message::new(None, "PASS".to_owned(), Vec::new(), Some(s.password.clone()));
+         from |&:msg: &Message| msg.clone().suffix.map(|s| Pass { password: s }););
+
+command!(Ping { server1: Option<String>, server2: Option<String> }
+         to |&:s :&Ping| {
+             let mut v = Vec::new();
+             if let Some(ref s) = s.server1 { v.push(s.clone()) }
+             if let Some(ref s) = s.server2 { v.push(s.clone()) }
+             Message::new(None, "PING".to_owned(), v, None)
+         };
+         from |&:msg: &Message| {
+             let mut c = msg.content.clone();
+             Some(Ping { server2: c.pop(), server1: c.pop() }) }; );
+
+command!(Pong { server1: Option<String>, server2: Option<String> }
+         to |&:s: &Pong| {
+             let mut v = Vec::new();
+             if let Some(ref s) = s.server1 { v.push(s.clone()) }
+             if let Some(ref s) = s.server2 { v.push(s.clone()) }
+             Message::new(None, "PONG".to_owned(), v, None)
+         };
+         from |&:msg: &Message| {
+             let mut c = msg.content.clone();
+             Some(Pong { server2: c.pop(), server1: c.pop() })
+         }; );
+
+command!(PrivMsg { from: Option<String>, to: String, content: String }
+         to |&:s: &PrivMsg| {
+             Message::new(s.from.clone(), "PRIVMSG".to_owned(), vec![s.to.clone()], Some(s.content.clone()))
+         };
+         from |&:msg: &Message| {
+             msg.content.clone().pop().map(
+                 |c| PrivMsg {
+                     from: msg.prefix.clone(),
+                     to: c,
+                     content: msg.suffix.clone().unwrap_or(String::new())
+                 })
+         }; );
+*/
+
+#[derive(Clone, PartialEq, Eq, Hash)]
+pub enum Mode {
+    Away,
+    Invisible,
+    Wallops,
+    Restricted,
+    Operator,
+    LocalOperator,
+    ServerNotices,
+    Custom(String)
+}
+
+#[derive(Copy, Clone, PartialEq, Eq, Hash)]
+pub enum SetMode {
+    Plus,
+    Minus
+}
+
+#[derive(Clone, PartialEq, Eq, Hash)]
+pub enum Command<'a> {
+    Pass { password: Cow<'a, String> },
+    Nick { nickname: Cow<'a, String> },
+    User { user: Cow<'a, String>, mode: Cow<'a, String>, unused: Cow<'a, String>, realname: Cow<'a, String> },
+    Oper { name: Cow<'a, String>, password: Cow<'a, String> },
+    Mode { nickname: Cow<'a, String>, mode: &'a [(SetMode, Mode)] },
+    Service { nickname: Cow<'a, String>, reserved: Cow<'a, String>, distribution: Cow<'a, String>, service_type: Cow<'a, String>, reserved2: Cow<'a, String>, info: Cow<'a, String> },
+    Quit { message: Option<Cow<'a, String>> },
+    SQuit { server: Cow<'a, String>, comment: Cow<'a, String> },
+    Join { channels: &'a [(Cow<'a, String>, Option<Cow<'a, String>>)] },
+    Join_leave_all,
+    Part { channels: &'a [Cow<'a, String>], message: Cow<'a, String> },
+    /*
+    Topic = 1011,
+    Names = 1012,
+    List = 1013,
+    Invite = 1014,
+    Kick = 1015,
+    */
+    PrivMsg { from: Option<Cow<'a, String>>, to: Cow<'a, String>, content: Cow<'a, String> },
+    Notice { to: Cow<'a, String>, content: Cow<'a, String> },
+    /*
+    Motd = 1018,
+    LUsers = 1019,
+    Version = 1020,
+    Stats = 1021,
+    Links = 1022,
+    Time = 1023,
+    Connect = 1024,
+    Trace = 1025,
+    Admin = 1026,
+    Info = 1027,
+    ServList = 1028,
+    SQuery = 1029,
+    Who = 1030,
+    WhoIs = 1031,
+    WhoWas = 1032,
+    Kill = 1033,
+    */
+    Ping { server1: Option<Cow<'a, String>>, server2: Option<Cow<'a, String>> },
+    Pong { server1: Option<Cow<'a, String>>, server2: Option<Cow<'a, String>> },
+    /*
+    Error = 1036,
+    Away = 1037,
+    Rehash = 1038,
+    Die = 1039,
+    Restart = 1040,
+    Summon = 1041,
+    Users = 1042,
+    Wallops = 1043,
+    Userhost = 1044,
+    Ison = 1045,*/
+
+    Ctcp { command: Cow<'a, String> },
+
+    /*
+
+    /// "Welcome to the Internet Relay Network <nick>!<user>@<host>"
+    RPL_WELCOME = 001,
+    /// "Your host is <servername>, running version <ver>"
+    RPL_YOURHOST = 002,
+    /// "This server was created <date>"
+    RPL_CREATED = 003,
+    /// "<servername> <version> <available user modes> <available channel modes>"
+    RPL_MYINFO = 004,
+    /// "Try server <server name>, port <port number>"
+    /// Sent by the server to a user to suggest an alternative
+    /// server.  This is often used when the connection is
+    /// refused because the server is already full.
+    RPL_BOUNCE = 005,
+    /// ":*1<reply> *( " " <reply> )"
+    /// - Reply format used by USERHOST to list replies to
+    ///   the query list.  The reply string is composed as
+    ///   follows:
+    ///
+    ///   reply = nickname [ "*" ] "=" ( "+" / "-" ) hostname
+    ///
+    ///   The '*' indicates whether the client has registered
+    ///   as an Operator.  The '-' or '+' characters represent
+    ///   whether the client has set an AWAY message or not
+    ///   respectively.
+    RPL_USERHOST = 302,
+    /// ":*1<nick> *( " " <nick> )"
+    /// - Reply format used by ISON to list replies to the query list.
+    RPL_ISON = 303,
+    /// "<nick> :<away message>"
+    RPL_AWAY = 301,
+    /// ":You are no longer marked as being away"
+    RPL_UNAWAY = 305,
+    /// ":You have been marked as being away"
+    /// - These replies are used with the AWAY command (if
+    ///   allowed).  RPL_AWAY is sent to any client sending a
+    ///   PRIVMSG to a client which is away.  RPL_AWAY is only
+    ///   sent by the server to which the client is connected.
+    ///   Replies RPL_UNAWAY and RPL_NOWAWAY are sent when the
+    ///   client removes and sets an AWAY message./
+    RPL_NOWAWAY = 306,
+    /// "<nick> <user> <host> * :<real name>"
+    RPL_WHOISUSER = 311,
+    /// "<nick> <server> :<server info>"
+    RPL_WHOISSERVER = 312,
+    /// "<nick> :is an IRC operator"
+    RPL_WHOISOPERATOR = 313,
+    /// "<nick> <integer> :seconds idle"
+    RPL_WHOISIDLE = 317,
+    /// "<nick> :End of WHOIS list"
+    RPL_ENDOFWHOIS = 318,
+    /// "<nick> :*( ( "@" / "+" ) <channel> " " )"
+    /// - Replies 311 - 313, 317 - 319 are all replies
+    ///   generated in response to a WHOIS message.  Given that
+    ///   there are enough parameters present, the answering
+    ///   server MUST either formulate a reply out of the above
+    ///   numerics (if the query nick is found) or return an
+    ///   error reply.  The '*' in RPL_WHOISUSER is there as
+    ///   the literal character and not as a wild card.  For
+    ///   each reply set, only RPL_WHOISCHANNELS may appear
+    ///   more than once (for long lists of channel names).
+    ///   The '@' and '+' characters next to the channel name
+    ///   indicate whether a client is a channel operator or
+    ///   has been granted permission to speak on a moderated
+    ///   channel.  The RPL_ENDOFWHOIS reply is used to mark
+    ///   the end of processing a WHOIS message.
+    RPL_WHOISCHANNELS = 319,
+    /// "<nick> <user> <host> * :<real name>"
+    RPL_WHOWASUSER = 314,
+    /// "<nick> :End of WHOWAS"
+    /// - When replying to a WHOWAS message, a server MUST use
+    ///   the replies RPL_WHOWASUSER, RPL_WHOISSERVER or
+    ///   ERR_WASNOSUCHNICK for each nickname in the presented
+    ///   list.  At the end of all reply batches, there MUST
+    ///   be RPL_ENDOFWHOWAS (even if there was only one reply
+    ///   and it was an error).
+    RPL_ENDOFWHOWAS = 369,
+    /// Obsolete. Not used.
+    #[deprecated = "Obsolete. Not used."]
+    RPL_LISTSTART = 321,
+    /// "<channel> <# visible> :<topic>"
+    RPL_LIST = 322,
+    /// ":End of LIST"
+    /// - Replies RPL_LIST, RPL_LISTEND mark the actual replies
+    ///   with data and end of the server's response to a LIST
+    ///   command.  If there are no channels available to return,
+    ///   only the end reply MUST be sent.
+    RPL_LISTEND = 323,
+    /// "<channel> <nickname>"
+    RPL_UNIQOPIS = 325,
+    /// "<channel> <mode> <mode params>"
+    RPL_CHANNELMODEIS = 324,
+    /// "<channel> :No topic is set"
+    RPL_NOTOPIC = 331,
+    /// "<channel> :<topic>"
+    /// - When sending a TOPIC message to determine the
+    ///   channel topic, one of two replies is sent.  If
+    ///   the topic is set, RPL_TOPIC is sent back else
+    ///   RPL_NOTOPIC.
+    RPL_TOPIC = 332,
+    /// "<channel> <nick>"
+    /// - Returned by the server to indicate that the
+    ///   attempted INVITE message was successful and is
+    ///   being passed onto the end client.
+    RPL_INVITING = 341,
+    /// "<user> :Summoning user to IRC"
+    /// - Returned by a server answering a SUMMON message to
+    ///   indicate that it is summoning that user.
+    RPL_SUMMONING = 342,
+    /// "<channel> <invitemask>"
+    RPL_INVITELIST = 346,
+    /// "<channel> :End of channel invite list"
+    /// - When listing the 'invitations masks' for a given channel,
+    ///   a server is required to send the list back using the
+    ///   RPL_INVITELIST and RPL_ENDOFINVITELIST messages.  A
+    ///   separate RPL_INVITELIST is sent for each active mask.
+    ///   After the masks have been listed (or if none present) a
+    ///   RPL_ENDOFINVITELIST MUST be sent.
+    RPL_ENDOFINVITELIST = 347,
+    /// "<channel> <exceptionmask>"
+    RPL_EXCEPTLIST = 348,
+    /// "<channel> :End of channel exception list"
+    /// - When listing the 'exception masks' for a given channel,
+    ///   a server is required to send the list back using the
+    ///   RPL_EXCEPTLIST and RPL_ENDOFEXCEPTLIST messages.  A
+    ///   separate RPL_EXCEPTLIST is sent for each active mask.
+    ///   After the masks have been listed (or if none present)
+    ///   a RPL_ENDOFEXCEPTLIST MUST be sent./
+    RPL_ENDOFEXCEPTLIST = 349,
+    /// "<version>.<debuglevel> <server> :<comments>"
+    ///  - Reply by the server showing its version details.
+    ///    The <version> is the version of the software being
+    ///    used (including any patchlevel revisions) and the
+    ///    <debuglevel> is used to indicate if the server is
+    ///    running in "debug mode".
+    ///
+    ///    The "comments" field may contain any comments about
+    ///    the version or further version details.
+    RPL_VERSION = 351,
+    /// "<channel> <user> <host> <server> <nick>
+    ///       ( "H" / "G" > ["*"] [ ( "@" / "+" ) ]
+    ///       :<hopcount> <real name>"
+    RPL_WHOREPLY = 352,
+    /// "<name> :End of WHO list"
+    /// - The RPL_WHOREPLY and RPL_ENDOFWHO pair are used
+    ///    to answer a WHO message.  The RPL_WHOREPLY is only
+    ///    sent if there is an appropriate match to the WHO
+    ///    query.  If there is a list of parameters supplied
+    ///    with a WHO message, a RPL_ENDOFWHO MUST be sent
+    ///    after processing each list item with <name> being
+    ///    the item.
+    RPL_ENDOFWHO = 315,
+    /// "( "=" / "*" / "@" ) <channel>
+    ///      :[ "@" / "+" ] <nick> *( " " [ "@" / "+" ] <nick> )
+    /// - "@" is used for secret channels, "*" for private
+    ///   channels, and "=" for others (public channels).
+    RPL_NAMREPLY = 353,
+    /// "<channel> :End of NAMES list"
+    /// - To reply to a NAMES message, a reply pair consisting
+    ///   of RPL_NAMREPLY and RPL_ENDOFNAMES is sent by the
+    ///   server back to the client.  If there is no channel
+    ///   found as in the query, then only RPL_ENDOFNAMES is
+    ///   returned.  The exception to this is when a NAMES
+    ///   message is sent with no parameters and all visible
+    ///   channels and contents are sent back in a series of
+    ///   RPL_NAMEREPLY messages with a RPL_ENDOFNAMES to mark
+    ///   the end.
+    RPL_ENDOFNAMES = 366,
+    /// "<mask> <server> :<hopcount> <server info>"
+    RPL_LINKS = 364,
+    /// "<mask> :End of LINKS list"
+    /// - In replying to the LINKS message, a server MUST send
+    ///   replies back using the RPL_LINKS numeric and mark the
+    ///   end of the list using an RPL_ENDOFLINKS reply.
+    RPL_ENDOFLINKS = 365,
+    /// "<channel> <banmask>"
+    RPL_BANLIST = 367,
+    /// "<channel> :End of channel ban list"
+    /// - When listing the active 'bans' for a given channel,
+    ///   a server is required to send the list back using the
+    ///   RPL_BANLIST and RPL_ENDOFBANLIST messages.  A separate
+    ///   RPL_BANLIST is sent for each active banmask.  After the
+    ///   banmasks have been listed (or if none present) a
+    ///   RPL_ENDOFBANLIST MUST be sent.
+    RPL_ENDOFBANLIST = 368,
+    /// ":<string>"
+    RPL_INFO = 371,
+    /// ":End of INFO list"
+    /// - A server responding to an INFO message is required to
+    ///   send all its 'info' in a series of RPL_INFO messages
+    ///   with a RPL_ENDOFINFO reply to indicate the end of the
+    ///   replies.
+    RPL_ENDOFINFO = 374,
+    /// ":- <server> Message of the day - "
+    RPL_MOTDSTART = 375,
+    /// ":- <text>"
+    RPL_MOTD = 372,
+    /// ":End of MOTD command"
+    /// - When responding to the MOTD message and the MOTD file
+    ///   is found, the file is displayed line by line, with
+    ///   each line no longer than 80 characters, using
+    ///   RPL_MOTD format replies.  These MUST be surrounded
+    ///   by a RPL_MOTDSTART (before the RPL_MOTDs) and an
+    ///   RPL_ENDOFMOTD (after).
+    RPL_ENDOFMOTD = 376,
+    /// ":You are now an IRC operator"
+    /// - RPL_YOUREOPER is sent back to a client which has
+    ///   just successfully issued an OPER message and gained
+    ///   operator status.
+    RPL_YOUREOPER = 381,
+    /// "<config file> :Rehashing"
+    /// - If the REHASH option is used and an operator sends
+    ///   a REHASH message, an RPL_REHASHING is sent back to
+    ///   the operator.
+    RPL_REHASHING = 382,
+    /// "You are service <servicename>"
+    /// - Sent by the server to a service upon successful
+    ///   registration.
+    RPL_YOURESERVICE = 383,
+    /// "<server> :<string showing server's local time>"
+    /// - When replying to the TIME message, a server MUST send
+    ///   the reply using the RPL_TIME format above.  The string
+    ///   showing the time need only contain the correct day and
+    ///   time there.  There is no further requirement for the
+    ///   time string.
+    RPL_TIME = 391,
+    /// ":UserID   Terminal  Host"
+    RPL_USERSSTART = 392,
+    /// ":<username> <ttyline> <hostname>"
+    RPL_USERS = 393,
+    /// ":End of users"
+    RPL_ENDOFUSERS = 394,
+    /// ":Nobody logged in"
+    /// - If the USERS message is handled by a server, the
+    ///   replies RPL_USERSTART, RPL_USERS, RPL_ENDOFUSERS and
+    ///   RPL_NOUSERS are used.  RPL_USERSSTART MUST be sent
+    ///   first, following by either a sequence of RPL_USERS
+    ///   or a single RPL_NOUSER.  Following this is
+    ///   RPL_ENDOFUSERS.
+    RPL_NOUSERS = 395,
+    /// "Link <version & debug level> <destination>
+    ///       <next server> V<protocol version>
+    ///       <link uptime in seconds> <backstream sendq>
+    ///       <upstream sendq>"
+    RPL_TRACELINK = 200,
+    /// "Try. <class> <server>"
+    RPL_TRACECONNECTING = 201,
+    /// "H.S. <class> <server>"
+    RPL_TRACEHANDSHAKE = 202,
+    /// "???? <class> [<client IP address in dot form>]"
+    RPL_TRACEUNKNOWN = 203,
+    /// "Oper <class> <nick>"
+    RPL_TRACEOPERATOR = 204,
+    /// "User <class> <nick>"
+    RPL_TRACEUSER = 205,
+    /// "Serv <class> <int>S <int>C <server>
+    ///       <nick!user|*!*>@<host|server> V<protocol version>"
+    RPL_TRACESERVER = 206,
+    /// "Service <class> <name> <type> <active type>"
+    RPL_TRACESERVICE = 207,
+    /// "<newtype> 0 <client name>"
+    RPL_TRACENEWTYPE = 208,
+    /// "Class <class> <count>"
+    RPL_TRACECLASS = 209,
+    /// Unused.
+    #[deprecated = "Unused."]
+    RPL_TRACERECONNECT = 210,
+    /// "File <logfile> <debug level>"
+    RPL_TRACELOG = 261,
+    /// "<server name> <version & debug level> :End of TRACE"
+    /// - The RPL_TRACE* are all returned by the server in
+    ///   response to the TRACE message.  How many are
+    ///   returned is dependent on the TRACE message and
+    ///   whether it was sent by an operator or not.  There
+    ///   is no predefined order for which occurs first.
+    ///   Replies RPL_TRACEUNKNOWN, RPL_TRACECONNECTING and
+    ///   RPL_TRACEHANDSHAKE are all used for connections
+    ///   which have not been fully established and are either
+    ///   unknown, still attempting to connect or in the
+    ///   process of completing the 'server handshake'.
+    ///   RPL_TRACELINK is sent by any server which handles
+    ///   a TRACE message and has to pass it on to another
+    ///   server.  The list of RPL_TRACELINKs sent in
+    ///   response to a TRACE command traversing the IRC
+    ///   network should reflect the actual connectivity of
+    ///   the servers themselves along that path.
+    ///   RPL_TRACENEWTYPE is to be used for any connection
+    ///   which does not fit in the other categories but is
+    ///   being displayed anyway.
+    ///   RPL_TRACEEND is sent to indicate the end of the list./
+    RPL_TRACEEND = 262,
+    /// "<linkname> <sendq> <sent messages>
+    ///       <sent Kbytes> <received messages>
+    ///       <received Kbytes> <time open>"
+    /// - reports statistics on a connection.  <linkname>
+    ///   identifies the particular connection, <sendq> is
+    ///   the amount of data that is queued and waiting to be
+    ///   sent <sent messages> the number of messages sent,
+    ///   and <sent Kbytes> the amount of data sent, in
+    ///   Kbytes. <received messages> and <received Kbytes>
+    ///   are the equivalent of <sent messages> and <sent
+    ///   Kbytes> for received data, respectively.  <time
+    ///   open> indicates how long ago the connection was
+    ///   opened, in seconds.
+    RPL_STATSLINKINFO = 211,
+    /// "<command> <count> <byte count> <remote count>"
+    /// - reports statistics on commands usage.
+    RPL_STATSCOMMAND = 212,
+    /// "<stats letter> :End of STATS report"
+    RPL_ENDOFSTATS = 219,
+    /// ":Server Up %d days %d:%02d:%02d"
+    /// - reports the server uptime.
+    RPL_STATSUPTIME = 242,
+    /// "O <hostmask> * <name>"
+    /// - reports the allowed hosts from where user may become IRC
+    ///   operators.
+    RPL_STATSOLINE = 243,
+    /// "<user mode string>"
+    /// - To answer a query about a client's own mode,
+    ///   RPL_UMODEIS is sent back.
+    RPL_UMODEIS = 221,
+    /// "<name> <server> <mask> <type> <hopcount> <info>"
+    RPL_SERVLIST = 234,
+    /// "<mask> <type> :End of service listing"
+    /// - When listing services in reply to a SERVLIST message,
+    ///   a server is required to send the list back using the
+    ///   RPL_SERVLIST and RPL_SERVLISTEND messages.  A separate
+    ///   RPL_SERVLIST is sent for each service.  After the
+    ///   services have been listed (or if none present) a
+    ///   RPL_SERVLISTEND MUST be sent./
+    RPL_SERVLISTEND = 235,
+    /// ":There are <integer> users and <integer>
+    ///      services on <integer> servers"
+    RPL_LUSERCLIENT = 251,
+    /// "<integer> :operator(s) online"
+    RPL_LUSEROP = 252,
+    /// "<integer> :unknown connection(s)"
+    RPL_LUSERUNKNOWN = 253,
+    /// "<integer> :channels formed"
+    RPL_LUSERCHANNELS = 254,
+    /// ":I have <integer> clients and <integer>
+    ///       servers"
+    /// - In processing an LUSERS message, the server
+    ///   sends a set of replies from RPL_LUSERCLIENT,
+    ///   RPL_LUSEROP, RPL_USERUNKNOWN,
+    ///   RPL_LUSERCHANNELS and RPL_LUSERME.  When
+    ///   replying, a server MUST send back
+    ///   RPL_LUSERCLIENT and RPL_LUSERME.  The other
+    ///   replies are only sent back if a non-zero count
+    ///   is found for them.
+    RPL_LUSERME = 255,
+    /// "<server> :Administrative info"
+    RPL_ADMINME = 256,
+    /// ":<admin info>"
+    RPL_ADMINLOC1 = 257,
+    /// ":<admin info>"
+    RPL_ADMINLOC2 = 258,
+    /// ":<admin info>"
+    /// - When replying to an ADMIN message, a server
+    ///   is expected to use replies RPL_ADMINME
+    ///   through to RPL_ADMINEMAIL and provide a text
+    ///   message with each.  For RPL_ADMINLOC1 a
+    ///   description of what city, state and country
+    ///   the server is in is expected, followed by
+    ///   details of the institution (RPL_ADMINLOC2)
+    ///   and finally the administrative contact for the
+    ///   server (an email address here is REQUIRED)
+    ///   in RPL_ADMINEMAIL.
+    RPL_ADMINEMAIL = 259,
+    /// "<command> :Please wait a while and try again."
+    /// - When a server drops a command without processing it,
+    ///   it MUST use the reply RPL_TRYAGAIN to inform the
+    ///   originating client.
+    RPL_TRYAGAIN = 263,
+
+    /// "<nickname> :No such nick/channel"
+    /// - Used to indicate the nickname parameter supplied to a
+    ///   command is currently unused.
+    ERR_NOSUCHNICK = 401,
+    /// "<server name> :No such server"
+    /// - Used to indicate the server name given currently
+    ///   does not exist.
+    ERR_NOSUCHSERVER = 402,
+    /// "<channel name> :No such channel"
+    /// - Used to indicate the given channel name is invalid.
+    ERR_NOSUCHCHANNEL = 403,
+    /// "<channel name> :Cannot send to channel"
+    /// - Sent to a user who is either (a) not on a channel
+    ///   which is mode +n or (b) not a chanop (or mode +v) on
+    ///   a channel which has mode +m set or where the user is
+    ///   banned and is trying to send a PRIVMSG message to
+    ///   that channel.
+    ERR_CANNOTSENDTOCHAN = 404,
+    /// "<channel name> :You have joined too many channels"
+    /// - Sent to a user when they have joined the maximum
+    ///   number of allowed channels and they try to join
+    ///   another channel.
+    ERR_TOOMANYCHANNELS = 405,
+    /// "<nickname> :There was no such nickname"
+    /// - Returned by WHOWAS to indicate there is no history
+    ///   information for that nickname.
+    ERR_WASNOSUCHNICK = 406,
+    /// "<target> :<error code> recipients. <abort message>"
+    /// - Returned to a client which is attempting to send a
+    ///   PRIVMSG/NOTICE using the user@host destination format
+    ///   and for a user@host which has several occurrences.
+    /// - Returned to a client which trying to send a
+    ///   PRIVMSG/NOTICE to too many recipients.
+    /// - Returned to a client which is attempting to JOIN a safe
+    ///   channel using the shortname when there are more than one
+    ///   such channel.
+    ERR_TOOMANYTARGETS = 407,
+    /// "<service name> :No such service"
+    /// - Returned to a client which is attempting to send a SQUERY
+    ///   to a service which does not exist.
+    ERR_NOSUCHSERVICE = 408,
+    /// ":No origin specified"
+    /// - PING or PONG message missing the originator parameter.
+    ERR_NOORIGIN = 409,
+    /// ":No recipient given (<command>)"
+    ERR_NORECIPIENT = 411,
+    /// ":No text to send"
+    ERR_NOTEXTTOSEND = 412,
+    /// "<mask> :No toplevel domain specified"
+    ERR_NOTOPLEVEL = 413,
+    /// "<mask> :Wildcard in toplevel domain"
+    ERR_WILDTOPLEVEL = 414,
+    /// "<mask> :Bad Server/host mask"
+    /// - 412 - 415 are returned by PRIVMSG to indicate that
+    ///   the message wasn't delivered for some reason.
+    ///   ERR_NOTOPLEVEL and ERR_WILDTOPLEVEL are errors that
+    ///   are returned when an invalid use of
+    ///   "PRIVMSG $<server>" or "PRIVMSG #<host>" is attempted.
+    ERR_BADMASK = 415,
+    /// "<command> :Unknown command"
+    /// - Returned to a registered client to indicate that the
+    ///   command sent is unknown by the server.
+    ERR_UNKNOWNCOMMAND = 421,
+    /// ":MOTD File is missing"
+    /// - Server's MOTD file could not be opened by the server.
+    ERR_NOMOTD = 422,
+    /// "<server> :No administrative info available"
+    /// - Returned by a server in response to an ADMIN message
+    ///   when there is an error in finding the appropriate
+    ///   information.
+    ERR_NOADMININFO = 423,
+    /// ":File error doing <file op> on <file>"
+    /// - Generic error message used to report a failed file
+    ///   operation during the processing of a message.
+    ERR_FILEERROR = 424,
+    /// ":No nickname given"
+    /// - Returned when a nickname parameter expected for a
+    ///   command and isn't found.
+    ERR_NONICKNAMEGIVEN = 431,
+    /// "<nick> :Erroneous nickname"
+    /// - Returned after receiving a NICK message which contains
+    ///   characters which do not fall in the defined set.  See
+    ///   section 2.3.1 for details on valid nicknames.
+    ERR_ERRONEUSNICKNAME = 432,
+    /// "<nick> :Nickname is already in use"
+    /// - Returned when a NICK message is processed that results
+    ///   in an attempt to change to a currently existing
+    ///   nickname.
+    ERR_NICKNAMEINUSE = 433,
+    /// "<nick> :Nickname collision KILL from <user>@<host>"
+    /// - Returned by a server to a client when it detects a
+    ///   nickname collision (registered of a NICK that
+    ///   already exists by another server).
+    ERR_NICKCOLLISION = 436,
+    /// "<nick/channel> :Nick/channel is temporarily unavailable"
+    /// - Returned by a server to a user trying to join a channel
+    ///   currently blocked by the channel delay mechanism.
+    /// - Returned by a server to a user trying to change nickname
+    ///   when the desired nickname is blocked by the nick delay
+    ///   mechanism.
+    ERR_UNAVAILRESOURCE = 437,
+    /// "<nick> <channel> :They aren't on that channel"
+    /// - Returned by the server to indicate that the target
+    ///   user of the command is not on the given channel.
+    ERR_USERNOTINCHANNEL = 441,
+    /// "<channel> :You're not on that channel"
+    /// - Returned by the server whenever a client tries to
+    ///   perform a channel affecting command for which the
+    ///   client isn't a member.
+    ERR_NOTONCHANNEL = 442,
+    /// "<user> <channel> :is already on channel"
+    /// - Returned when a client tries to invite a user to a
+    ///   channel they are already on.
+    ERR_USERONCHANNEL = 443,
+    /// "<user> :User not logged in"
+    /// - Returned by the summon after a SUMMON command for a
+    ///   user was unable to be performed since they were not
+    ///   logged in.
+    ERR_NOLOGIN = 444,
+    /// ":SUMMON has been disabled"
+    /// - Returned as a response to the SUMMON command.  MUST be
+    ///   returned by any server which doesn't implement it.
+    ERR_SUMMONDISABLED = 445,
+    /// ":USERS has been disabled"
+    /// - Returned as a response to the USERS command.  MUST be
+    ///   returned by any server which does not implement it.
+    ERR_USERSDISABLED = 446,*/
+    /// ":You have not registered"
+    /// - Returned by the server to indicate that the client
+    ///   MUST be registered before the server will allow it
+    ///   to be parsed in detail.
+    ErrNotRegistered,/*
+    /// "<command> :Not enough parameters"
+    /// - Returned by the server by numerous commands to
+    ///   indicate to the client that it didn't supply enough
+    ///   parameters.
+    ERR_NEEDMOREPARAMS = 461,
+    /// ":Unauthorized command (already registered)"
+    /// - Returned by the server to any link which tries to
+    ///   change part of the registered details (such as
+    ///   password or user details from second USER message).
+    ERR_ALREADYREGISTERED = 462,
+    /// ":Your host isn't among the privileged"
+    /// - Returned to a client which attempts to register with
+    ///   a server which does not been setup to allow
+    ///   connections from the host the attempted connection
+    ///   is tried.
+    ERR_NOPERMFORHOST = 463,
+    /// ":Password incorrect"
+    /// - Returned to indicate a failed attempt at registering
+    ///   a connection for which a password was required and
+    ///   was either not given or incorrect.
+    ERR_PASSWDMISMATCH = 464,
+    /// ":You are banned from this server"
+    /// - Returned after an attempt to connect and register
+    ///   yourself with a server which has been setup to
+    ///   explicitly deny connections to you.
+    ERR_YOUREBANNEDCREEP = 465,
+    /// - Sent by a server to a user to inform that access to the
+    ///   server will soon be denied.
+    ERR_YOUWILLBEBANNED = 466,
+    /// "<channel> :Channel key already set"
+    ERR_KEYSET = 467,
+    /// "<channel> :Cannot join channel (+l)"
+    ERR_CHANNELISFULL = 471,
+    /// "<char> :is unknown mode char to me for <channel>"
+    ERR_UNKNOWNMODE = 472,
+    /// "<channel> :Cannot join channel (+i)"
+    ERR_INVITEONLYCHAN = 473,
+    /// "<channel> :Cannot join channel (+b)"
+    ERR_BANNEDFROMCHAN = 474,
+    /// "<channel> :Cannot join channel (+k)"
+    ERR_BADCHANNELKEY = 475,
+    /// "<channel> :Bad Channel Mask"
+    ERR_BADCHANMASK = 476,
+    /// "<channel> :Channel doesn't support modes"
+    ERR_NOCHANMODES = 477,
+    /// "<channel> <char> :Channel list is full"
+    ERR_BANLISTFULL = 478,
+    /// ":Permission Denied- You're not an IRC operator"
+    /// - Any command requiring operator privileges to operate
+    ///   MUST return this error to indicate the attempt was
+    ///   unsuccessful.
+    ERR_NOPRIVILEGES = 481,
+    /// "<channel> :You're not channel operator"
+    /// - Any command requiring 'chanop' privileges (such as
+    ///   MODE messages) MUST return this error if the client
+    ///   making the attempt is not a chanop on the specified
+    ///   channel.
+    ERR_CHANOPRIVSNEEDED = 482,
+    /// ":You can't kill a server!"
+    /// - Any attempts to use the KILL command on a server
+    ///   are to be refused and this error returned directly
+    ///   to the client.
+    ERR_CANTKILLSERVER = 483,
+    /// ":Your connection is restricted!"
+    /// - Sent by the server to a user upon connection to indicate
+    ///   the restricted nature of the connection (user mode "+r").
+    ERR_RESTRICTED = 484,
+    /// ":You're not the original channel operator"
+    /// - Any MODE requiring "channel creator" privileges MUST
+    ///   return this error if the client making the attempt is not
+    ///   a chanop on the specified channel.
+    ERR_UNIQOPPRIVSNEEDED = 485,
+    /// ":No O-lines for your host"
+    /// - If a client sends an OPER message and the server has
+    ///   not been configured to allow connections from the
+    ///   client's host as an operator, this error MUST be
+    ///   returned.
+    ERR_NOOPERHOST = 491,
+    /// ":Unknown MODE flag"
+    /// - Returned by the server to indicate that a MODE
+    ///   message was sent with a nickname parameter and that
+    ///   the a mode flag sent was not recognized.
+    ERR_UMODEUNKNOWNFLAG = 501,
+    /// ":Cannot change mode for other users"
+    /// - Error sent to any user trying to view or change the
+    ///   user mode for a user other than themselves.
+    ERR_USERSDONTMATCH = 502
+        */
+}
+
+/*
+impl ToString for Command {
+    fn to_string(&self) -> String {
+        match self {
+            PASS => "PING",
+            NICK => "NICK",
+            USER => "USER",
+            OPER => "1004",
+            MODE => "1005",
+            SERVICE => "1006",
+            QUIT => "1007",
+            SQUIT => "1008",
+            JOIN => "1009",
+            PART => "1010",
+            TOPIC => "1011",
+            NAMES => "1012",
+            LIST => "1013",
+            INVITE => "1014",
+            KICK => "1015",
+            PRIVMSG => "1016",
+            NOTICE => "1017",
+            MOTD => "1018",
+            LUSERS => "1019",
+            VERSION => "1020",
+            STATS => "1021",
+            LINKS => "1022",
+            TIME => "1023",
+            CONNECT => "1024",
+            TRACE => "1025",
+            ADMIN => "1026",
+            INFO => "1027",
+            SERVLIST => "1028",
+            SQUERY => "1029",
+            WHO => "1030",
+            WHOIS => "1031",
+            WHOWAS => "1032",
+            KILL => "1033",
+            PING => "1034",
+            PONG => "1035",
+            ERROR => "1036",
+            AWAY => "1037",
+            REHASH => "1038",
+            DIE => "1039",
+            RESTART => "1040",
+            SUMMON => "1041",
+            USERS => "1042",
+            WALLOPS => "1043",
+            USERHOST => "1044",
+            ISON => "1045",
+
+            RPL_WELCOME => "001",
+            RPL_YOURHOST => "002",
+            RPL_CREATED => "003",
+            RPL_MYINFO => "004",
+            RPL_BOUNCE => "005",
+            RPL_USERHOST => "302",
+            RPL_ISON => "303",
+            RPL_AWAY => "301",
+            RPL_UNAWAY => "305",
+            RPL_NOWAWAY => "306",
+            RPL_WHOISUSER => "311",
+            RPL_WHOISSERVER => "312",
+            RPL_WHOISOPERATOR => "313",
+            RPL_WHOISIDLE => "317",
+            RPL_ENDOFWHOIS => "318",
+            RPL_WHOISCHANNELS => "319",
+            RPL_WHOWASUSER => "314",
+            RPL_ENDOFWHOWAS => "369",
+            RPL_LISTSTART => "321",
+            RPL_LIST => "322",
+            RPL_LISTEND => "323",
+            RPL_UNIQOPIS => "325",
+            RPL_CHANNELMODEIS => "324",
+            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_ENDOFWHO => "315",
+            RPL_NAMREPLY => "353",
+            RPL_ENDOFNAMES => "366",
+            RPL_LINKS => "364",
+            RPL_ENDOFLINKS => "365",
+            RPL_BANLIST => "367",
+            RPL_ENDOFBANLIST => "368",
+            RPL_INFO => "371",
+            RPL_ENDOFINFO => "374",
+            RPL_MOTDSTART => "375",
+            RPL_MOTD => "372",
+            RPL_ENDOFMOTD => "376",
+            RPL_YOUREOPER => "381",
+            RPL_REHASHING => "382",
+            RPL_YOURESERVICE => "383",
+            RPL_TIME => "391",
+            RPL_USERSSTART => "392",
+            RPL_USERS => "393",
+            RPL_ENDOFUSERS => "394",
+            RPL_NOUSERS => "395",
+            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_TRACELOG => "261",
+            RPL_TRACEEND => "262",
+            RPL_STATSLINKINFO => "211",
+            RPL_STATSCOMMAND => "212",
+            RPL_ENDOFSTATS => "219",
+            RPL_STATSUPTIME => "242",
+            RPL_STATSOLINE => "243",
+            RPL_UMODEIS => "221",
+            RPL_SERVLIST => "234",
+            RPL_SERVLISTEND => "235",
+            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_TRYAGAIN => "263",
+
+            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_UNIQOPPRIVSNEEDED => "485",
+            ERR_NOOPERHOST => "491",
+            ERR_UMODEUNKNOWNFLAG => "501",
+        }.to_owned()
+    }
+}*/
+
+
+/*
+impl FromStr for Command {
+    fn from_str(s: &str) -> Option<Command> {
+        use self::Command::*;
+        match s {
+            "PASS" => Some(PASS),
+            "NICK" => Some(NICK),
+            "USER" => Some(USER),
+            "OPER" => Some(OPER),
+            "MODE" => Some(MODE),
+            "SERVICE" => Some(SERVICE),
+            "QUIT" => Some(QUIT),
+            "SQUIT" => Some(SQUIT),
+            "JOIN" => Some(JOIN),
+            "PART" => Some(PART),
+            "TOPIC" => Some(TOPIC),
+            "NAMES" => Some(NAMES),
+            "LIST" => Some(LIST),
+            "INVITE" => Some(INVITE),
+            "KICK" => Some(KICK),
+            "PRIVMSG" => Some(PRIVMSG),
+            "NOTICE" => Some(NOTICE),
+            "MOTD" => Some(MOTD),
+            "LUSERS" => Some(LUSERS),
+            "VERSION" => Some(VERSION),
+            "STATS" => Some(STATS),
+            "LINKS" => Some(LINKS),
+            "TIME" => Some(TIME),
+            "CONNECT" => Some(CONNECT),
+            "TRACE" => Some(TRACE),
+            "ADMIN" => Some(ADMIN),
+            "INFO" => Some(INFO),
+            "SERVLIST" => Some(SERVLIST),
+            "SQUERY" => Some(SQUERY),
+            "WHO" => Some(WHO),
+            "WHOIS" => Some(WHOIS),
+            "WHOWAS" => Some(WHOWAS),
+            "KILL" => Some(KILL),
+            "PING" => Some(PING),
+            "PONG" => Some(PONG),
+            "ERROR" => Some(ERROR),
+            "AWAY" => Some(AWAY),
+            "REHASH" => Some(REHASH),
+            "DIE" => Some(DIE),
+            "RESTART" => Some(RESTART),
+            "SUMMON" => Some(SUMMON),
+            "USERS" => Some(USERS),
+            "WALLOPS" => Some(WALLOPS),
+            "USERHOST" => Some(USERHOST),
+            "ISON" => Some(ISON),
+            _ => None
+        }
+    }
+}*/
+
+/// If you hoped it couldn't get any uglier... I'm sorry, it does.
+/// Why a giant match? API.
+///
+/// I tried structuring it as a bunch of structs that impl a `Command` trait,
+/// but the user would have to use Any and lots of cats. Also, extensibility isn't
+/// really a goal; the IRC protocol doesn't seem to evolve very fast.
+///
+/// Granted, I *could* have used a phf-map to map to functions to parse this, which
+/// - while more readable - shouldn't have resulted in performance gains.
+///
+/// Please don't cry.
+
+impl<'a> Command<'a> {
+    pub fn from_message(msg: &'a Message) -> Option<Command<'a>> {
+        match &msg.command.as_ref()[..] {
+            "NOTICE" => msg.content.get(0).and_then(|c| msg.content.get(1).map(|t|
+                Command::Notice { to: Cow::Borrowed(&t), content: Cow::Borrowed(&c) })),
+            "PING" => msg.content.get(0).and_then(|s1| msg.content.get(1).map(|s2|
+                Command::Ping { server1: Some(Cow::Borrowed(&s1)), server2: Some(Cow::Borrowed(&s2)) })),
+            "451" => Some(Command::ErrNotRegistered),
+            _ => unimplemented!()
+        }
+    }
+    pub fn to_message(&'a self) -> Message {
+        match self {
+            &Command::Ping { ref server1, ref server2 } => {
+                let mut c = Vec::new();
+                if let &Some(ref s) = server1 { c.push(s.clone()) }
+                if let &Some(ref s) = server2 { c.push(s.clone()) }
+                Message::new(None, Cow::Owned("PING".to_owned()), c, None, MsgType::Irc)
+            },
+            &Command::Pong { ref server1, ref server2 } => {
+                let mut c = Vec::new();
+                if let &Some(ref s) = server1 { c.push(s.clone()) }
+                if let &Some(ref s) = server2 { c.push(s.clone()) }
+                Message::new(None, Cow::Owned("PONG".to_owned()), c, None, MsgType::Irc)
+            },
+            _ => unimplemented!()
+        }
+    }
+
+    //pub fn is_reply(&self) -> bool { let i = *self as uint; i >= 200 && i <= 399 }
+    //pub fn is_error(&self) -> bool { let i = *self as uint; i >= 400 && i <= 599 }
+}
+
+pub fn join(v: Vec<String>, from: usize) -> String {
+    let mut msg = if v[from].chars().next().unwrap() == ':' {
+        v[from][1..].to_owned()
+    } else { v[from].clone() };
+    for m in v.iter().skip(from + 1) {
+        msg.push_str(" ");
+        msg.push_str(m.trim_right());
+    }
+    msg
+}
+
+/*pub struct PrivMsg {
+    pub from: Ident,
+    pub to: String,
+    pub content: String
+}
+
+impl ParseResult for PrivMsg {
+    fn parse(message: Message) -> Option<PrivMsg> {
+        let from = Ident::parse(message.prefix.unwrap()[]);
+        let to = message.content[0].clone();
+        match from {
+            Some(from) => Some(PrivMsg {
+                from: from,
+                to: to,
+                content: join(message.content, 1)
+            }),
+            None => None
+        }
+    }
+}*/
+
+#[cfg(test)]
+mod test {
+    use std::borrow::{ Cow, ToOwned };
+    use message::{ Message, MsgType };
+
+    #[test]
+    fn parse_message() {
+        let a = ":a.b.c NOTICE AUTH :*** Looking up your hostname...";
+        // I'm not even kidding...
+        let a2 = Message::new(
+            Some(Cow::Owned("a.b.c".to_owned())),
+            Cow::Owned("NOTICE".to_owned()),
+            vec![Cow::Owned("AUTH".to_owned())],
+            Some(Cow::Owned("*** Looking up your hostname...".to_owned())),
+            MsgType::Irc
+        );
+        assert_eq!(a.parse::<Message>().unwrap(), a2.clone());
+        assert_eq!(a2.to_string(), a);
+
+        let b = ":d PRIVMSG You :\u{1}ACTION sends you funny pictures of cats!\u{1}";
+        let b2 = Message::new(
+            Some(Cow::Owned("d".to_owned())),
+            Cow::Owned("PRIVMSG".to_owned()),
+            vec![Cow::Owned("You".to_owned())],
+            Some(Cow::Owned("\u{1}ACTION sends you funny pictures of cats!\u{1}".to_owned())),
+            MsgType::Ctcp
+        );
+        assert_eq!(b.parse::<Message>().unwrap(), b2.clone());
+        assert_eq!(b2.to_string(), b);
+    }
+
+}
diff --git a/src/server.rs b/src/server.rs
index 4c4479a..8f48938 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -1,139 +1,170 @@
 use std::io::{
-    BufferedReader,
-    TcpStream,
-    IoError
+    self,
+    Write,
+    Read,
+    BufRead,
+    BufReader,
 };
 
-use std::sync::Arc;
-use std::sync::Mutex;
+use std::net::TcpStream;
 
-use std::borrow::ToOwned;
+use message;
+use message::{ Command, Message };
 
-use callback::Callback;
-use event;
-use event::Event;
+#[cfg(feature = "ssl")]
+use openssl::ssl::{ SslContext, SslMethod, SslStream };
 
-#[deriving(Show, PartialEq, Eq, Clone)]
-pub enum Failure {
-    AlreadyConnected,
-    NotConnected,
-    Io(IoError)
+/// Yes, I don't like the name either, but it's private, so...
+enum StreamKind {
+    Plain(TcpStream),
+    #[cfg(feature = "ssl")]
+    Ssl(SslStream)
+}
+
+impl Write for StreamKind {
+    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
+        match *self {
+            StreamKind::Plain(ref mut s) => s.write(buf),
+            #[cfg(feature = "ssl")]
+            StreamKind::Ssl(ref mut s) => s.write(buf)
+        }
+    }
+
+    fn flush(&mut self) -> io::Result<()> {
+        match *self {
+            StreamKind::Plain(ref mut s) => s.flush(),
+            #[cfg(feature = "ssl")]
+            StreamKind::Ssl(ref mut s) => s.flush()
+        }
+    }
+}
+
+impl Read for StreamKind {
+    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
+        match *self {
+            StreamKind::Plain(ref mut s) => s.read(buf),
+            #[cfg(feature = "ssl")]
+            StreamKind::Ssl(ref mut s) => s.read(buf)
+        }
+    }
 }
 
-#[deriving(Clone)]
 pub struct Server {
-    stream: Arc<Mutex<Option<TcpStream>>>,
-    pub events: Arc<Mutex<Callback<(Server, Event)>>>,
+    stream: Option<StreamKind>,
 }
 
 impl Server {
     pub fn new() -> Server {
         Server {
-            stream: Arc::new(Mutex::new(None)),
-            events: {
-                let mut c = Callback::new();
-                c.register(&(Server::handle_event as fn((Server,Event))));
-                Arc::new(Mutex::new(c))
-            }
+            stream: None
         }
     }
 
-    fn handle_event(arg: (Server, Event)) {
-        let (mut server, event) = arg;
-        match event.command[] {
-            event::PING => {
-                server.sendraw(format!("PONG {}", event.content).as_slice(), true).unwrap();
-            }
-            _ => ()
+    fn handle_event(&mut self, msg: &message::Message) {
+        if *msg.command == "PING" {
+            let _ = self.send(Command::Pong { server1: msg.suffix.clone(), server2: None }.to_message());
         }
     }
 
-    pub fn connect(&mut self, host: String, port: u16) -> Result<(), Failure> {
+    pub fn connect(&mut self, host: String, port: u16) -> ::Result<()> {
+        let s = &mut self.stream;
+        match *s { Some(_) => return Err(::IrscError::AlreadyConnected), _ => () };
+        *s = match TcpStream::connect((host.as_ref(), port)) {
+            Ok(tcp) => Some(StreamKind::Plain(tcp)),
+            Err(e) => return Err(::IrscError::Io(e))
+        };
+
+        Ok(())
+    }
+
+    #[cfg(feature = "ssl")]
+    pub fn connect_ssl(&mut self, host: String, port: u16) -> ::Result<()> {
         let mut s = self.stream.lock();
-        match *s { Some(_) => return Err(Failure::AlreadyConnected), _ => () };
-        *s = match TcpStream::connect((host.as_slice(), port)) {
+        match *s { Some(_) => return Err(::IrscError::AlreadyConnected), _ => () };
+        let tcp_stream = match TcpStream::connect((host.as_ref(), port)) {
             Ok(tcp) => Some(tcp),
-            Err(e) => return Err(Failure::Io(e))
+            Err(e) => return Err(::IrscError::Io(e))
         };
 
+        let ssl = SslContext::new(SslMethod::Tlsv1);
+        let ssl_stream = SslStream::new(&ssl, tcp_stream);
+        *s = ssl_stream;
+
         Ok(())
     }
 
     #[inline]
-    fn sendraw(&mut self, s: &str, newline: bool) -> Result<(), Failure> {
-        info!("OUT: {}", s);
-        let mut locked_stream = self.stream.lock();
-        if locked_stream.is_some() {
-            locked_stream.as_mut().map(|stream| {
-                match stream.write_str(s) {
-                    Ok(_) => match { if newline { stream.write_str("\r\n") } else { Ok(()) } } {
-                        Ok(_) =>  match stream.flush() {
-                            Ok(_) => Ok(()),
-                            Err(e) => return Err(Failure::Io(e))
+    fn sendraw(&mut self, s: &str, newline: bool) -> ::Result<usize> {
+        info!(">> {}", s);
+        if ::DEBUG && s.len() > 510 {
+            panic!("Message too long, kitties will die if this runs in release mode. Msg: {}", s)
+        }
+        let stream = &mut self.stream;
+        if stream.is_some() {
+            stream.as_mut().map(|stream| {
+                match stream.write(s.as_bytes()) {
+                    Ok(a) => match { if newline { stream.write(b"\r\n").map(|s| s + a) } else { Ok(a) } } {
+                        Ok(b) =>  match stream.flush() {
+                            Ok(_) => Ok(b),
+                            Err(e) => return Err(::IrscError::Io(e))
                         },
-                        Err(e) => return Err(Failure::Io(e))
+                        Err(e) => return Err(::IrscError::Io(e))
                     },
-                    Err(e) => return Err(Failure::Io(e))
+                    Err(e) => return Err(::IrscError::Io(e))
                 }
             }).unwrap()
         } else {
-            Err(Failure::NotConnected)
+            Err(::IrscError::NotConnected)
         }
     }
 
-    pub fn join(&mut self, channel: &str) -> Result<(), Failure> {
-        self.sendraw(format!("JOIN {}", channel).as_slice(), true)
+    pub fn send(&mut self, msg: message::Message) -> ::Result<usize> {
+        self.sendraw(&msg.to_string(), true)
     }
 
-    pub fn nick(&mut self, nick: &str) -> Result<(), Failure> {
-        self.sendraw(format!("NICK {}", nick).as_slice(), true)
+    pub fn join(&mut self, channel: &str) -> ::Result<usize> {
+        self.sendraw(format!("JOIN {}", channel).as_ref(), true)
     }
 
-    pub fn user(&mut self, username: &str, hostname: &str, servername: &str, realname: &str) -> Result<(), Failure> {
-        self.sendraw(format!("USER {} {} {} :{}", username, hostname, servername, realname).as_slice(), true)
+    pub fn part(&mut self, channel: &str) -> ::Result<usize> {
+        self.sendraw(format!("PART {}", channel).as_ref(), true)
     }
 
-    pub fn password(&mut self, password: &str) -> Result<(), Failure> {
-        self.sendraw(format!("PASS {}", password).as_slice(), true)
+    pub fn nick(&mut self, nick: &str) -> ::Result<usize> {
+        self.sendraw(format!("NICK {}", nick).as_ref(), true)
     }
 
-    pub fn msg(&mut self, target: &str, message: &str) -> Result<(), Failure> {
-        self.sendraw(format!("PRIVMSG {} :{}", target, message).as_slice(), true)
+    pub fn user(&mut self, username: &str, hostname: &str, servername: &str, realname: &str) -> ::Result<usize> {
+        self.sendraw(format!("USER {} {} {} :{}", username, hostname, servername, realname).as_ref(), true)
     }
 
-    pub fn listen(&mut self) -> Result<(), Failure> {
-        let stream = {
-            let lock = self.stream.lock();
-            match *lock {
-                Some(ref s) => s.clone(),
-                None => return Err(Failure::NotConnected)
-            }
-        };
-
-        let mut reader = BufferedReader::new(stream);
-        loop {
-            let line = reader.read_line().unwrap();
-            let mut parts = line.as_slice().split(' ').collect::<Vec<&str>>();
+    pub fn password(&mut self, password: &str) -> ::Result<usize> {
+        self.sendraw(format!("PASS {}", password).as_ref(), true)
+    }
 
-            info!("IN: {}", line);
+    pub fn msg(&mut self, target: &str, message: &str) -> ::Result<usize> {
+        self.sendraw(format!("PRIVMSG {} :{}", target, message).as_ref(), true)
+    }
 
-            if parts.len() == 0 {
-                continue;
+    pub fn listen(&mut self, events: &[fn(&mut Server, &Message)]) -> ::Result<()> {
+        let mut reader = BufReader::new(match self.stream {
+            Some(StreamKind::Plain(ref s)) => (*s).try_clone().unwrap(),
+            #[cfg(feature = "ssl")]
+            Some(StreamKind::Ssl(ref s)) => (*s).try_clone().unwrap(),
+            None => return Err(::IrscError::NotConnected)
+        });
+
+        for line in reader.lines() {
+            let line = line.unwrap().parse();
+
+            if let Ok(msg) = line {
+                println!("{:?}", msg);
+                self.handle_event(&msg);
+                for e in events.iter() {
+                    e(self, &msg)
+                }
             }
-
-            // if message has a prefix
-            let prefix = if parts[0].chars().next().unwrap() == ':' {
-                parts.remove(0).unwrap()
-            } else { "" };
-
-            let cmd = parts.remove(0).unwrap();
-            let event = Event {
-                prefix: prefix.to_owned(),
-                command: cmd.to_owned(),
-                content: parts.into_iter().map(|s| s.to_owned()).collect()
-            };
-
-            self.events.lock().fire(&(self.clone(), event));
         }
+        Ok(())
     }
 }