Module:Sandbox/mdu02

--Google Code-in, Introduction to Lua in Wikipedia
--Google Code-in, Working with modules, Calculations and tests
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 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 .. " is " .. i * num .. "<br>"
	end
	return out
end

p.mum = function(frame)
	local family = {"Dad", "Mum", "Uncle Stan", "Aunty Elsie", "Brian", "Grandpa Bob", "Grandma Anne", "Hannah"}
	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.upper(string.sub(str, 1,1))
	out = out .. 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

p.unpackmdydate = function(frame)
	local mdydate = frame.args.mdydate or ""
	local month, day, year = string.match(mdydate, "(%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 fbcodes = mw.language.getFallbacksFor(langcode)
	local thisfb = langcode .. " fallbacks: "
	for i,j in pairs(fbcodes) do
		thisfb = thisfb .. j ..", "
	end
	thisfb = string.sub(thisfb, 1, #thisfb-2) .. "<br>"
	return thisfb
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 msg = ""
	local ttl = frame.args.title or false
	if ttl and true == false
		then msg = msg .. "Error"
	else
		local ttlobject = mw.title.new( ttl )
		if ttlobject.exists == false
			then msg = msg .. ttl .. " does not exist and is not a redirect"
		end
		if ttlobject.isRedirect == false and ttlobject.exists == true
			then msg = msg .. ttl .. " exists and is not a redirect"
		end
		if ttlobject.isRedirect == true and ttlobject.exists == true
			then msg = msg .. ttl .. " exists and is a redirect"
		end
	end
	return msg
end

p.pageinfodebug = function(frame)
	local ttl = frame.args.title
	local ttlobj = mw.title.new( ttl )
	msg = ttlobj.exists
	return msg
end

return p