""
"foo"

"this string contains only one "" double quote"
"this string contains only one $$ dollar symbol"

"$DIV"

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

[
	["string", ["\"\""]],
	["string", ["\"foo\""]],

	["string", ["\"this string contains only one \"\" double quote\""]],
	["string", ["\"this string contains only one $$ dollar symbol\""]],

	["string", [
		"\"",
		["variable", "$DIV"],
		"\""
	]]
]
