Editing Module:Sandbox/Gabe Mitnick

-- Gabe Mitnick Google Code-in 2017, Introduction to Lua in Wikipedia

local p = {} -- p stands for package

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

-- inspired by isitthursday.org
-- returns whether or not it is Thursday,
-- or some other day specified by the day argument.
-- for example: {{#invoke:Sandbox/Gabe_Mitnick|thursday|day=Monday}}
-- os.date isn't accurate for the user's timezone, but for some other timezone.
p.thursday = function(frame)
	weekday = frame.args.day or "Thursday"
	if os.date("%A") == weekday then
		return "it is " .. weekday
	else
		return "it's not " .. weekday
	end
end

-- from RexxS
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 = frame.args.celsius or 0
	fah = cel * 9 / 5 + 32
	msg = cel .. " degrees Celsius is " .. fah .. " degrees Fahrenheit. "
	if (tonumber(cel) > 9) then
		msg = msg .. "It is warm. "
	else
		msg = msg .. "It is cold. "
	end
	return msg
end

-- Displays a mathematical "times-table"
-- The number base for the times-table is passed as parameter "num"
-- If no parameter or a blank parameter or a value less than 2 is passed, use 2
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", "Grandma", "Cinnamon", "Beth"}
	local msg = ""
	for i = 1, #family do
		msg = msg .. "Hello " .. family[i] .. "<br>"
	end
	return msg
end

p.langnames = function(frame)
	local langs = mw.language.fetchLanguageNames()
	local langlist = ""
	local count = 0
	for key, value in pairs( langs ) do
		langlist = langlist .. key .. " - " .. value .. "<br>"
		count = count + 1
	end
	return langlist .. "<br>= " .. count .. " languages"
end

p.pageinfo = function(frame)
	if (frame.args.title == nil) then
		error("Please provide an artictle title")
	else
		local titleObj = mw.title.new(frame.args.title)
		local returnVal = frame.args.title
		if (titleObj.exists) then
			returnVal = returnVal .. " exists and is "
		else
			returnVal = returnVal .. " does not exist and is "
		end
		if (titleObj.isRedirect) then
			returnVal = returnVal .. "a redirect. "
		else
			returnVal = returnVal .. "not a redirect. "
		end
		return returnVal
	end
end
return p