Module:Sandbox/Kortales

--Kortales Google Code-in, Introduction to Lua in Wikipedia
-- Working with modules
local p = {}

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 = 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 .. " equals " .. i * num .. "<br>"
	end
	return out
end

p.mum = function(frame)
	local family = {"Dad", "Mum", "Uncle Stan", "Aunty Elsie", "Brian", "John", "Daniel",  "Emily"}
	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

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 fallbacks = mw.language.getFallbacksFor(frame.args.langcode)
	local list = ""
	local c = 0
	for a, b in pairs(fallbacks) do
		list = list .. b .. "<br>"
		c = c + 1
	end
	return list .. "<br>= " .. c .. " fallback language codes"
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 or "This page"
	local ttlobj = mw.title.new( ttl )
	
	if mw.title.new(ttl) == nil then
		return "This page does not exist and is not a redirect"
	else
	if mw.title.new(ttl).exists == true then
		local txt = ttlobj.text
		if mw.title.new(ttl).isRedirect == true then
			return txt .. " exists and is a redirect"
		else
			return txt .. " exists and is not a redirect"
		end
	else
		return ttl .. " does not exist and is not a redirect"
	end	
	end
end	

return p