-- foo bar
# foo bar
(* foo
bar *)
(* foo
(* bar *)
*)

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

[
	["comment", "-- foo bar"],
	["comment", "# foo bar"],
	["comment", "(* foo\r\nbar *)"],
	["comment", "(* foo\r\n(* bar *)\r\n*)"]
]

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

Checks for single-line and multi-line comments.
Also checks for one level of nesting.