:ruby
	def circumference
		Math::PI * radius ** 2
	end

~
	:ruby
		def circumference
			Math::PI * radius ** 2
		end

----------------------------------------------------

[
	["filter-ruby", [
		["filter-name", ":ruby"],
		["text", [
			["keyword", "def"],
			["method-definition", [
				["function", "circumference"]
			]],

			"\r\n\t\tMath",
			["double-colon", "::"],
			["constant", "PI"],
			["operator", "*"],
			" radius ",
			["operator", "**"],
			["number", "2"],

			["keyword", "end"]
		]]
	]],

	["punctuation", "~"],

	["filter-ruby", [
		["filter-name", ":ruby"],
		["text", [
			["keyword", "def"],
			["method-definition", [
				["function", "circumference"]
			]],

			"\r\n\t\t\tMath",
			["double-colon", "::"],
			["constant", "PI"],
			["operator", "*"],
			" radius ",
			["operator", "**"],
			["number", "2"],

			["keyword", "end"]
		]]
	]]
]
