Module:Money

This module is intended for formatting the amount of Money into different denominations (right now only til Billions). Used on {{Money }}.

---

local p = {}

--Function to determine if string is empty value 
local function isEmpty(s)
  return s == nil or s == ''
end

--Function to determine if string is empty value 
local function isNotZero(s)
  return s ~= 0 and s ~= "00"
end

local function formatString(num)
	if (num>999) then
		if num>9999 then
			if num>999999 then
				if num>999999999 then
					if num>99999999999999 then
						return string.sub(tostring(num), 1, -5).."&nbsp;×&nbsp;10<sup>"..string.sub(tostring(num), -2, -1).."</sup>"
					end
					if isNotZero(string.sub(tostring(num), -9, -8)) then
						return string.sub(tostring(num), 1, -10).."."..string.sub(tostring(num), -9, -8).." Billion"
					end
					return string.sub(tostring(num), 1, -10).." Billion"
				end
				if isNotZero(string.sub(tostring(num), -6, -5)) then
					return string.sub(tostring(num), 1, -7).."."..string.sub(tostring(num), -6, -5).." Million"
				end
				return string.sub(tostring(num), 1, -7).." Million"
			end
			return string.sub(tostring(num), 1, -4).."k"
		end
		return string.sub(tostring(num), 1, -4)..","..string.sub(tostring(num), -3)
	end
	return tostring(num)
end

--uses the template as a wrapper, grabbing any arguments passed to the template
function p.main(frame)
	local args = require('Module:Arguments').getArgs(frame, {
		wrapper="Template:Money"
	})
	return p._main(args, frame)
end

function p._main(args, frame)
	frame = frame or mw.getCurrentFrame()
	local quantity = tonumber(args[1])
	return formatString(quantity)
end

return p