# Display all the options available
	fun usage
	do
		var lmax = 1
		for i in options do
			var l = 3
			for n in i.names do
				l += n.length + 2
			end
			if lmax < l then lmax = l
		end

		for i in options do
			if not i.hidden then
				print(i.pretty(lmax))
			end
		end
	end