Documentation for this module may be created at Module:Sandbox/Michael Young/doc

--Young.m.20 Google Code-in, Introduction to Lua in Wikipedia
--Young.m.20 Google Code-in, 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

function p.temperature( frame )
	cel = frame.args.celsius
	cel = tonumber(cel) or 0
	fah = cel*9/5+32
	msg = "" .. cel .. " degrees Celsius is " .. fah .. " degrees Fahrenheit.<br>"
	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", "George", "Grandma", "Grandpa"}
	local msg = ""
	for i = 1, #family do
		msg = msg .. "Hello " .. family[i] .. "<br>"
	end
	return msg
end

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

return p