1 files changed, 66 insertions, 0 deletions
diff --git a/rirc.lua b/rirc.lua
new file mode 100644
index 0000000..b341bfd
--- /dev/null
+++ b/rirc.lua
@@ -0,0 +1,66 @@
+local irc = {}
+
+function irc.sendmsg(conn, ch, msg)
+	local m = msg:gsub("[\r\n]+"," ")
+	local l = 512-12-#ch
+	m = m:sub(1,l)
+	conn:send("PRIVMSG "..ch.." :"..m.."\r\n")
+end
+
+function irc.send(sock, args)
+	local out = ''
+	if args.source then
+		out = ':' .. args.source .. ' '
+	end
+	for i = 1, #args-1 do
+		local arg = tostring(args[i])
+		out = out .. arg:gsub("[\r\n ]+","") .. ' '
+	end
+	local last = tostring(args[#args]):gsub("[\r\n]+"," ")
+	out = out .. ':' .. last
+	print('>', out)
+	sock:write(out..'\r\n')
+end
+
+function irc.parse(line)
+	local words = {}
+	local idx = 1
+	while true do
+		local word,nidx = line:match("(%g+)%s*()",idx)
+		if not word then
+			break
+		elseif word:sub(1,1) == ":" and idx ~= 1 then
+			-- first word can start with :
+			local rest = line:sub(idx+1)
+			table.insert(words,rest)
+			break
+		else
+			table.insert(words,word)
+			idx = nidx
+		end
+	end
+
+	local from = nil
+	if words[1] and words[1]:sub(1,1) == ":" then
+		-- we have a source
+		from = table.remove(words,1):sub(2)
+	end
+
+	local op = words[1]
+	local args = {}
+	for i=2,#words do
+		args[i-1] = words[i]
+	end
+	return {source=from,op=op:upper(),args=args}
+end
+
+function irc.parse_src(src)
+	local s, _, nick, user, host = src:find("^(.*)!(.*)@(.*)$")
+	if s then
+		return true, nick, user, host
+	else
+		return false
+	end
+end
+
+return irc