Editing Module:Sandbox/Vushah

--Vushah 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

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

function p.people(frame)
	local friends = {"Agnetha", "Betty", "Carlos", "Davinder", "Eloise", "John", "William", "Robert"}
	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 langcode = frame.args.langcode or ""
	local fallbacklangs = mw.language.getFallbacksFor(langcode)
	local out = ""
	local count = 0
	for k, v in pairs(fallbacklangs) do
		out = out .. k .. " - " .. v .. "<br>"
		count = count + 1
	end
	return out .. "<br>= " .. count .. " fallback languages for " .. langcode
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 == "" or title == nil or 
		string.find(title, "#") or string.find(title, "<") or 
		string.find(title, ">") or string.find(title, "%[") or 
		string.find(title, "%]") or string.find(title, "{") or 
		string.find(title, "}") or string.find(title, "|") then 
			
		return "<strong>title is a required parameter that cannot be empty and cannot contain the characters # < > [ ] { } |</strong>"
	end
	local ttlobj = mw.title.new( title )
	local out = title
	if ttlobj.id == 0 then 
		out = out .. " does not exist"
	else 
		out = out .. " exists"
	end
	out = out .. " and"
	if ttlobj.isRedirect == true then 
		out = out .. " is a redirect"
	else 
		out = out .. " is not a redirect"
	end
	return out
end
	
return p