Editing Module:Sandbox/GCImelody

-- GCImelody 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

function p.converttemp(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

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 .. numb .. " times " .. i .. " equals " .. i * numb .. "<br>"
	end
	return out
end

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

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

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 code = frame.args.langcode or ""
	local langlist = mw.language.getFallbacksFor(code)
	local out = ""
	for i, lang in ipairs(langlist) do
		out = out .. " " .. lang
	end
	return out .. "<br>"
end

function p.findtriples(frame)
	local out = ""
	local langslist = mw.language.fetchLanguageNames()
	for k, v in pairs(langslist) do
		local fallbacks = mw.language.getFallbacksFor(k)
		if #fallbacks >=3 then out = out .. " " .. k end
	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

function p.pginfo(frame)
	local title = frame.args.title
	if title == "" then return title .. " does not exist and is not a redirect" end
	local ttlobj = mw.title.new(title)
	if ttlobj == nil then return "This page does not exist and is not a redirect" end
	if ttlobj.exists == false then return title .. " does not exist and is not a redirect"
		elseif ttlobj.exists == true and ttlobj.isRedirect == false then return title .. " exists and is not a redirect"
			else return title .. " exists and is a redirect" end
end

return p