Editing Module:Sandbox/Deimos18

-- Deimos Google Code-in, Introduction to Lua in Wikipedia
-- Deimos 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 = (((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", "Grandpa George", "Grandma Jennifer", "Little Erika"}
	local msg = ""
	for x = 1,#family do
		msg = msg .. "Hello " .. family[x] .. "<br>"
	end
	return msg
end

-- Task 5
p.sentence = function(frame)
	local str = frame.args.words or ""
	if (str == "") then
		out = string.sub(str,1)
	else
		local l_check = string.match(str, "(%a+)") -- To take the first letter-y part of the string out of the complete string (for editing, ofc)
		local str_fi, str_la = string.find(str, "(%a+)") -- Find the first and last indices of the first letter-y part of string that appears
		if (str_fi == nil and l_check == nil) then -- checking if the string even consists letters
			out = str -- return back whatever there is since there's no letter anyways
		else
			local str_bef = string.sub(str,2,(str_fi-1)) -- Obtaining the part of the string before the first letter
			local str_fl = string.sub(l_check,1,1) -- Getting the first letter
			local str_cap = string.upper(str_fl) -- Capitalizing the first letter
			local str_end = string.sub(str, str_fi+1, (#str-1)) -- Obtaining the rear part of the string i.e. the part after the first letter
			out = str_bef .. str_cap .. str_end -- Joining together the front, capitalized and rear part to return the complete string
		end
	end
	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

-- Task 6
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 fallbacks = mw.language.getFallbacksFor(langcode)
	local fallbackList = "Fallbacks for " .. langcode .. ": "
	for a, b in pairs(fallbacks) do
		fallbackList = fallbackList .. b .. ", "
	end
	return fallbackList
end

p.fallbacksTwo = function(frame)
	local langslist = mw.language.fetchLanguageNames()
	local fbtlist = {}
	for i=1,440 do
		for langscode, v in pairs(langslist) do
			local fallbacks = mw.language.getFallbacksFor(langscode or  "sk")
			for numberOfFallbacks, b in pairs(fallbacks) do
				if (numberOfFallbacks > 2) then
					fbtlist[i] = langscode
				end
			end	
		end
	end
	local fallbackList = "Fallbacks for " .. fbtlist[1] .. ": "
	local fallbackFBT = mw.language.getFallbacksFor(fbtlist[1])
			for a, v in pairs(fallbackFBT) do
				fallbackList = fallbackList .. v .. ", "
			end	
	return fallbackList
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 existence = ""
	local redirect = ""
	if (ttlobj.exists) then
		existence = " exists "
	else
		existence = " does not exist "
	end
	if (ttlobj.isRedirect) then
		redirect = "a redirect"
	else
		redirect = "not a redirect"
	end
	local msg = ttl .. existence .. "and is " .. redirect
	return msg
end

return p