conversion[req]

[kunal]

--Calculator by Phatty
--v1.21
--Added Invalid usage message
--useage: sum    = example : sum 1 + 1


Bot = "Calculator"

function DataArrival(user,data)
	if strsub(data, 1, 1) == "<" then
		data=strsub(data,1,strlen(data)-1)
		s,e,cmd = strfind(data,"%b<>%s+(%S+)")

		if cmd == "sum" then
			s,e,cmd,nr1,what,nr2 = strfind(data,"%b<>%s+(%S+)%s+(%S+)%s+(%S+)%s+(%S+)")

			if nr2  == nil then
				user:SendData(Bot, "Not a valid usage please try again ;)")
				return 1
			else
				if what == "+" then
					sum = nr1 + nr2
				elseif what == "-" then
					sum = nr1 - nr2
				elseif what == "x" then
					sum = nr1 * nr2
				elseif what == "/" then
					sum = nr1 / nr2
				end
				user:SendData(Bot,"The sum: "..nr1..what..nr2.." = "..sum)
			return 1
			end
		end
	end
end

[Madman]

--Calculator by Phatty
--v1.21
--Added Invalid usage message
--useage: sum    = example : sum 1 + 1
--Lua 5 by Madman


Bot = "Calculator"

function ChatArrival(user,data)
	data=string.sub(data,1,string.len(data)-1)
	s,e,cmd = string.find(data,"%b<>%s+(%S+)")
	if cmd == "sum" then
		s,e,cmd,nr1,what,nr2 = string.find(data,"%b<>%s+(%S+)%s+(%S+)%s+(%S+)%s+(%S+)")
		if nr2  == nil then
			user:SendData(Bot, "Not a valid usage please try again ;)")
			return 1
		else
			if what == "+" then
				sum = nr1 + nr2
			elseif what == "-" then
				sum = nr1 - nr2
			elseif what == "x" then
				sum = nr1 * nr2
			elseif what == "/" then
				sum = nr1 / nr2
			end
			user:SendData(Bot,"The sum: "..nr1..what..nr2.." = "..sum)
		return 1
		end
	end
end

Try this...