Module:Sandbox/Ohmomar

--Ohmomar 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


function p.temperature( frame )
	cel = tonumber(frame.args.celsius) or 0
	fah = 9 * cel/5 + 32
	msg = ""..cel.. " degrees Celsius is " ..fah.." degrees Fahrenheit."
	if cel > 9 then
		msg = msg .. " It is warm."
		return msg
	else
		msg = msg .. " It is cold."
		return msg
	end
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", "Ohm", "Rakesh", "Raj"}
	local msg = ""
	for i = 1, #family do
		msg = msg .. "Hello " .. family[i] .. "<br>"
	end
	return msg
end

--Task 5

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

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

--Task 6

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 langcode = mw.language.getFallbacksFor( langcode )
	local langs = ""
	local count = 0
	for k, v in pairs(langcode) do
		langs = langs .. k .. " - " .. v .. "<br>"
		count = count + 1
	end
	return langs
end

p.pagename = function( frame )
	local ttl = frame.args.title
	local ttlobj = mw.title.new( ttl )
	local txt = ttlobj.text
	return txt
end

p.pageinfo = function( frame )
	local ttl = frame.args.title
	local ttlobj = mw.title.new( ttl )
	if ttlobj then
		if ttlobj.exists then
			if ttlobj.isRedirect then
				local txt = ttlobj.text.." exits and is a redirect"
				return txt
			else
				local txt = ttlobj.text.." exits and is not a redirect"
				return txt
			end
		else
			local txt = ttlobj.text.." does not exist and is not a redirect"
			return txt
		end
	else
		local txt = "Invalid title"
		return txt
	end
end
return p