Module:Sandbox/Ste1la

--Ste1la Google Code-in, Introduction to Lua in Wikipedia
--Ste1la 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

p.temperature = function(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. " 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", "Cousin Zyra", "Sister Lux", "Brother Ezreal"}
	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 langcode = frame.args.langcode or "en"
	local langlist = mw.language.getFallbacksFor(langcode)
	local langs = langcode .. " fallbacks: <br>"
	for i = 1, #langlist do
		langs = langs .. langlist[i] .. "<br>"
	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.pgttl or ""
	local ttlobj = mw.title.new(ttl) or ""
	local exists = ttlobj.id
	local redirect = ttlobj.redirectTarget
	local out = ""
	
	if exists == 0 then 
		out = out .. ttl .. " does not exist and is not a redirect" 
	elseif exists == nil then
		out = "Invalid title"
	else 
		out = out .. ttl .. " exists and " 
		if redirect == false then
			out = out .. "is not a redirect<br>" 
		else out = out .. "is a redirect<br>"
		end
	end
	
	return out
end

return p