Module:Sandbox/Shah Jahan Ishaq

 --Shah Jahan Ishaq Google Code-in, Introduction to Lua in Wikipedia
 --Lua Task 2 - Working with modules
 local p = {} -- p stands for package

 function p.hello( frame )
 return "Hello, world!"
 end
 p.Hi = function(frame)
	strName = frame.args.name or "Jimbo"
	return "Hello from Lua to my friend " .. strName .. ".<br>"
 end
 p.temperature = function(frame)
	cel = tonumber(frame.args.celsius) or 0
	fah = (cel*9)/5 + 32
	msg = cel .." degrees Celsius is " .. fah .. " degrees in Fahrenheit."
	if cel > 9 then
		msg = msg .." It is warm."
	else
		msg = msg .. " It is cold."
	end
	return msg
 end
 -- Task 4
 p.times = function(frame)
	local num = tonumber( frame.args.num ) or 2
	local out = num .. " Times table<br>"
	for i = 1, 12 do
		out = out ..num.." times "..i.." equals ".. i * num .. "<br>"
	end
	return out
 end

 p.mum = function(frame)
	local family = {"Dad", "Mum", "Uncle Stan", "Aunty Elsie", "Brian", "David", "Benny", "Remy"}
	local msg = ""
	for x = 1,#family do
		msg = msg .. "Hello " .. family[x] .. "<br>"
	end
	return msg
 end

 p.sentence = function(frame)
	local str = frame.args.words or ""
	local out = string.sub(str, 2)
	out = string.upper(string.sub(str, 1, 1)).. out
	return out
 end

 p.unpackdate = function(frame)
	local dmydate = frame.args.dmydate or ""
	local day, month, year = string.match(dmydate, "(%d+) (%w+) (%d+)")
	return "Year = " .. year .. "<br>Day = " .. day .. "<br>Month = " .. month
 end

 p.langnames = function(frame)
	local langlist = mw.language.fetchLanguageNames()
	local langs = ""
	local count = 0
	for k, v in pairs(langlist) do
		langs = langs .. k .. " - " .. v .. "<br>"
		count = count + 1
	end
	return langs .. "<br>= " .. count .. " languages"
 end
 p.fallbacks = function(frame)
	local langcode = frame.args.langcode
	local fallbackCodes = mw.language.getFallbacksFor(langcode)
	local code = ""
	for k in pairs(fallbackCodes) do
		code = code .. langcode .. "-" .. k .. "<br>"
	end
	return code
 end

 return p