:scss
	#main {
		width: $width;
	}

~
	:scss
	  #main {
	    width: $width;
	  }

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

[
	["filter-scss", [
		["filter-name", ":scss"],
		["text", [
			["selector", ["#main "]],
			["punctuation", "{"],

			["property", ["width"]],
			["punctuation", ":"],
			["variable", "$width"],
			["punctuation", ";"],

			["punctuation", "}"]
		]]
	]],

	["punctuation", "~"],

	["filter-scss", [
		["filter-name", ":scss"],
		["text", [
			["selector", ["#main "]],
			["punctuation", "{"],

			["property", ["width"]],
			["punctuation", ":"],
			["variable", "$width"],
			["punctuation", ";"],

			["punctuation", "}"]
		]]
	]]
]

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

Checks for CSS filter in Haml. The tilde serves only as a separator.
