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https://github.com/ShadowNinja/LuaIRC.git
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Added whois and changed stuff...
This commit is contained in:
Jakob Ovrum
parent
bd748aca29
commit
01877ea015
296
irc.lua
296
irc.lua
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--[[
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Lua IRC library
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Copyright (c) 2010 Jakob Ovrum
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use,
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copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following
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conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.]]
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local socket = require "socket"
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local error = error
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local setmetatable = setmetatable
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local rawget = rawget
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local ipairs = ipairs
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local print = print
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local unpack = unpack
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local pairs = pairs
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local string = string
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local tostring = tostring
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local table = table
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local type = type
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module(...)
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local function assert(b, err, errlevel)
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if not b then
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error(err, errlevel or 3)
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end
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return b
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end
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debug = false
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local clients = {}
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local meta = {}
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meta.__index = meta
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local meta_preconnect = {}
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function meta_preconnect.__index(o, k)
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local v = rawget(meta_preconnect, k)
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if not v and meta[k] then
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error("field '"..k.."' is not accessible before connecting", 2)
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end
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return v
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end
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function new(user)
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local o = {}
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o.nick = assert(user.nick, "Field 'nick' is required")
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o.username = user.username or "lua"
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o.realname = user.realname or "Lua owns"
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o.socket = socket.tcp()
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o.hooks = {}
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o.connected = false
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return setmetatable(o, meta_preconnect)
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end
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function think()
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local think = meta.think
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for _,o in ipairs(clients) do
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think(o)
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end
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end
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function meta:hook(name, id, f)
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f = f or id
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self.hooks[name] = self.hooks[name] or {}
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self.hooks[name][id] = f
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end
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meta_preconnect.hook = meta.hook
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function meta:unhook(name, id)
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local hooks = self.hooks[name]
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assert(hooks[id], "hook ID not found")
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hooks[id] = nil
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end
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meta_preconnect.unhook = meta.unhook
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function meta:invoke(name, ...)
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local hooks = self.hooks[name]
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if hooks then
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for id,f in pairs(hooks) do
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f(...)
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end
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end
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end
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function meta:connect(server, port)
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port = port or 6667
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local succ, err = self.socket:connect(server, port)
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if not succ then return nil, err end
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setmetatable(self, meta)
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self:send("USER %s 0 * :%s", self.username, self.realname)
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self:send("NICK %s", self.nick)
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self._i = #clients + 1
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clients[self._i] = self
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self.socket:settimeout(0)
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self.connected = true
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return true
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end
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meta_preconnect.connect = meta.connect
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function meta:disconnect(message)
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local message = message or "Bye!"
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o:invoke("OnDisconnect", message, false)
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self:send("QUIT :%s", message)
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self:shutdown()
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end
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function meta:shutdown()
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self.connected = false
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self.socket:shutdown()
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self.socket:close()
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clients[self._i] = nil
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setmetatable(self, nil)
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end
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function meta:think()
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local line, err
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while true do
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line, err = self.socket:receive("*l")
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if not line then break end
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self:handle(parse(line))
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end
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if err ~= "timeout" then
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o:invoke("OnDisconnect", err, true)
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self:shutdown()
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error(err, 3)
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end
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end
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function parsePrefix(prefix)
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local user = {}
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if prefix then
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user.nick, user.username, user.host = prefix:match("(.*)!(.*)@(.*)")
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end
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return user
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end
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function parse(line)
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local colonsplit = line:find(":", 2)
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local last
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if colonsplit then
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last = line:sub(colonsplit+1)
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line = line:sub(1, colonsplit-2)
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end
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local prefix
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if line:sub(1,1) == ":" then
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local space = line:find(" ")
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prefix = line:sub(2, space-1)
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line = line:sub(space)
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end
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local params = {}
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local it, state, init = line:gmatch("(%S+)")
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local cmd = it(state, init)
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for sub in it, state, init do
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params[#params + 1] = sub
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end
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if last then params[#params + 1] = last end
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return prefix, cmd, params
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end
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local handlers = {}
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handlers["PING"] = function(o, prefix, query)
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o:send("PONG :%s", query)
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end
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handlers["001"] = function(o)
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o:invoke("OnConnect")
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end
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handlers["PRIVMSG"] = function(o, prefix, channel, message)
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o:invoke("OnChat", parsePrefix(prefix), channel, message)
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end
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handlers["NOTICE"] = function(o, prefix, channel, message)
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o:invoke("OnNotice", parsePrefix(prefix), channel, message)
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end
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handlers["JOIN"] = function(o, prefix, channel)
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o:invoke("OnJoin", parsePrefix(prefix), channel)
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end
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handlers["PART"] = function(o, prefix, channel, reason)
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o:invoke("OnPart", parsePrefix(prefix), channel, reason)
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end
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handlers["ERROR"] = function(o, prefix, message)
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o:invoke("OnDisconnect", message, true)
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o:shutdown()
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error(message)
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end
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function meta:handle(prefix, cmd, params)
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local handler = handlers[cmd]
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if handler then
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handler(self, prefix, unpack(params))
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end
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end
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function meta:send(fmt, ...)
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self.socket:send(fmt:format(...) .. "\r\n")
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end
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function meta:sendChat(channel, msg)
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toChannel = ("PRIVMSG %s :"):format(channel)
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if msg:find("\r\n") then
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for line in msg:gmatch("(.+\r\n)") do
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self.socket:send(toChannel..line)
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end
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else
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self.socket:send(table.concat{toChannel, msg, "\r\n"})
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end
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end
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function meta:join(channel)
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self:send("JOIN %s", channel)
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end
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function meta:part(channel)
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self:send("PART %s", channel)
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end
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color = {
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black = 1,
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blue = 2,
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green = 3,
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red = 4,
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lightred = 5,
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purple = 6,
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brown = 7,
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yellow = 8,
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lightgreen = 9,
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navy = 10,
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cyan = 11,
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lightblue = 12,
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violet = 13,
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gray = 14,
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lightgray = 15,
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white = 16
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}
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local colByte = string.char(3)
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setmetatable(color, {__call = function(_, text, colornum)
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colornum = type(colornum) == "string" and assert(color[colornum], "Invalid color '"..colornum.."'") or colornum
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return table.concat{colByte, tostring(colornum), text, colByte}
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end})
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local boldByte = string.char(2)
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function bold(text)
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return boldByte..text..boldByte
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end
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local underlineByte = string.char(31)
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function underline(text)
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return underlineByte..text..underlineByte
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end
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