Module:Sandbox/Nathan fraignt

-- Nathan Fraignt Google Code-in, Introduction to Lua in Wikipedia
-- Introduction to Lua part 2.
local p = {} -- p stands for package

p.hello = function(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)
	if cel == nil then cel = 0 end
	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", "Jeroen", "Lisanne", "Nathan"}
	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 first_letter = string.upper(string.sub(str, 1, 1))
	local out = first_letter .. 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.unpackdateUSA = 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

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 or ""
	local returnString = ""
	for k, v in pairs(mw.language.getFallbacksFor(langCode)) do
		returnString = returnString .. k .. " - " .. v .. "<br>"
	end
	return returnString
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)
	local returnString = ttlobj.text
	if ttlobj.id == 0 then
		returnString = returnString .. " does not exist"
	else
		returnString = returnString .. " exists"	
	end
	if ttlobj.isRedirect then
		returnString = returnString .. " and is a redirect."
	else
		returnString = returnString .. " and is not a redirect."
	end
	return returnString
end

return p