""
"fo\"o"
"foo\
bar"

''
'fo\'o'
'foo\
bar'

@""
@"fo\"o"
@"foo\
bar"

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

[
	["string", "\"\""],
	["string", "\"fo\\\"o\""],
	["string", "\"foo\\\r\nbar\""],

	["string", "''"],
	["string", "'fo\\'o'"],
	["string", "'foo\\\r\nbar'"],

	["string", "@\"\""],
	["string", "@\"fo\\\"o\""],
	["string", "@\"foo\\\r\nbar\""]
]

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

Checks for strings.