Editing Module:Sandbox/NicholasG04

-- NicholasG04 - Google Code-in 2019, Introduction to Lua in Wikipedia
-- Lua Task 2 - Working with modules

local p = {}

function p.hello( frame )
	return "Hello, world!"
end

p.Hi = function(frame)
	strName = frame.args.name or "Jimmy"
	return "Hello from Lua to my friend " .. strName .. ".<br>"
end

-- Lua Task 3 - Calculations and tests

p.converttemp = function(frame)
	cels = tonumber(frame.args.celsius) or 0
	fahr = cels * 9 / 5 + 32
	msg =  cels .. " degrees celsius is " .. fahr .. " degrees fahrenheit. "
	if cels > 9 then
		msg = msg .. "It is warm."
	else
		msg = msg .. "It is cold."
	end
	return msg
end

-- Task 4
function p.timestable(frame)
	local numb = tonumber( frame.args.numb ) or 2
	local out = numb .. " times table<br>"
	for i = 1, 12 do
		out = out .. i .. ' times ' .. numb .. ' equals ' .. i*numb .. "<br>"
	end
	return out
end

function p.people(frame)
	local friends = {"Agnetha", "Betty", "Carlos", "Davinder", "Eloise", "Nick", "Martin", "Étienne"}
	local msg = ""
	for i=1, #friends do
		msg = msg .. "Hello " .. friends[i] .. "<br>"
	end
	return msg
end

-- Task 5

function p.sent(frame)
	local txt = frame.args.text or ""
	local l1 = string.upper(string.sub(txt,1,1))
	local ending = string.sub(txt,2)
	local out = l1 .. ending
	return out
end

function p.unpack(frame)
	local dmy = frame.args.dmydate or ""
	local d, m, y = string.match(dmy, "(%d+) (%w+) (%d+)")
	return "Year = " .. y .. "<br>Day = " .. d .. "<br>Month = " .. m
end

-- Task 6

function p.langs(frame)
	local langslist = mw.language.fetchLanguageNames()
	local out = ""
	local count = 0
	for k, v in pairs(langslist) do
		out = out .. k .. " - " .. v .. "<br>"
		count = count + 1
	end
	return out .. "<br>= " .. count .. " languages"
end

function p.fallbacklangs(frame)
	local langcode = frame.args.langcode
	local fallbacks =  mw.language.getFallbacksFor(langcode)
	local out = ""
	for k,v in pairs(fallbacks) do
		out = out .. k .. " - " .. v .. "<br>"
	end
	return out
end

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

p.pginfo = function(frame)
	local title = frame.args.title or ""
	local ttlobj = mw.title.new( title )
	local out = ""
	if ttlobj then
		if ttlobj.exists then
			out = title .. " exists"
		else 
			out = title .. " does not exist"
		end
		if ttlobj.isRedirect then
			out = out .. " and is a redirect"
		else
			out = out .. " and is not a redirect"
		end
	else 
		out = "ERROR: Cannot find title of this input!"
	end
	return out
end

return p