Better merge and made nick configurable.

config.example.lua

@@ -1,6 +1,8 @@
 
 return {
     -- IRC connection
+    IRC_NICK     =  'memebot',
+
     IRC_SERVER   =  'some-domain.com',
     IRC_PORT     =  6697,
     IRC_SECURE   =  true, -- If using SSL

main.lua

@@ -3,13 +3,21 @@
 
 math.randomseed(os.time())
 
-local CONFIG  =  require 'config'
+local CONFIG do
+    local success, config_or_error  =  pcall(require, 'config')
+    if not success then
+        error('Could not load config file: "./config.lua".\n'..config_or_error..'\nCould be that the config files doesn\'t exist. Make sure one exists, and try again.')
+    end
+    CONFIG  =  config_or_error
+end
 
 if CONFIG.LUA_EXTRA_PATH  then  package.path  = package.path  .. CONFIG.LUA_EXTRA_PATH   end
 if CONFIG.LUA_EXTRA_CPATH then  package.cpath = package.cpath .. CONFIG.LUA_EXTRA_CPATH  end
 
 local FARVEL_INTERVAL  = 90
 
+-- TODO: Invite to bogus channels
+
 --------------------------------------------------------------------------------
 -- Meme utils
 
@@ -262,9 +270,7 @@ end
 
 ----
 
-local BOT_NICK = 'ro-bot'
+local bot = irc.new { nick = CONFIG.IRC_NICK }
-
-local bot = irc.new { nick = BOT_NICK }
 
 local FARVEL = {
     ['[Ff]arvel'] = {'ses', 'farvel'},
@@ -304,12 +310,12 @@ end
 local COMP_SENTENCES do
     local ORD_MED_ATTITYDE = {
         bedre     = 'positiv',
-        dårligere = 'negativ'
+        dårligere = 'negativ',
-        hurtigere = 'positiv'
+        hurtigere = 'positiv',
-        langsommere = 'negativt'
+        langsommere = 'negativt',
-        robust      = 'positivt'
+        robust      = 'positivt',
     }
-    local COMP_SENTENCES = {}
+    COMP_SENTENCES = {}
     for ord, attityde in pairs(ORD_MED_ATTITYDE) do
         local first, second = '{A}', '{B}'
         if attityde == 'negativ' then  first, second = second, first  end
@@ -373,7 +379,7 @@ local ERROR_MSG = {
 }
 
 bot:hook('OnJoin', function(user, channel)
-    if user.nick == BOT_NICK then
+    if user.nick == CONFIG.IRC_NICK then
         -- On self join
 	io.write(string.format(' !! Joined %s\n', channel))
         if #imlib.font.list_fonts() == 0 then
@@ -394,8 +400,8 @@ local FORRIGE_FARVEL   =  0
 
 local function handle_message(bot, user, channel, message)
     -- Direct commands
-    if message:lower():match('^'..escape_pattern(BOT_NICK)..'%f[%A]') then
+    if message:lower():match('^'..escape_pattern(CONFIG.IRC_NICK)..'%f[%A]') then
-        local msg = message:sub(#BOT_NICK+1)
+        local msg = message:sub(#CONFIG.IRC_NICK+1)
         if msg:match '%s*join%s+(#%a)' then
             local channel  =  msg:match '^%s*join%s+(#%a+)%s*$'
             bot:sendChat(channel, "Will do! I'll join "..tostring(channel))
@@ -452,7 +458,7 @@ local function handle_message(bot, user, channel, message)
 end
 
 bot:hook("OnChat", function(user, channel, message)
-    if channel == BOT_NICK then  channel = user.nick  end
+    if channel == CONFIG.IRC_NICK then  channel = user.nick  end
     io.write '...\r'
     io.flush()
     local success, status  =  pcall(handle_message, bot, user, channel, message)
@@ -477,9 +483,6 @@ bot:hook('OnRaw', function (line)
     io.write(("           [RAW]:  %s\n"):format(line))
 end)
 
-
--- TODO: Invite to bogus channels
-
 --------------------------------------------------------------------------------
 -- Main run
 
@@ -490,14 +493,13 @@ bot:connect {
         secure = CONFIG.IRC_SECURE,
     }
 
-io.write ('Memebot has started up as "'..BOT_NICK..'"\n')
+    io.write ('Memebot has started up as "'..CONFIG.IRC_NICK..'"\n')
 
     assert(CONFIG.IRC_CHANNELS == nil or type(CONFIG.IRC_CHANNELS) == 'table')
     for _, channel in ipairs(CONFIG.IRC_CHANNELS or {}) do
         bot:join(channel)
     end
 
-
     while true do
         bot:think()
         sleep(0.5)
@@ -507,7 +509,7 @@ end
 --------------------------------------------------------------------------------
 
 if ... then
-    error 'Cannot be loaded like library'
+    error 'Cannot load Memebot as a library'
 else
     init_memebot()
 end