""
"Fo\"obar"
"Foo\
bar\z
baz"
''
'Fo\'obar'
'Foo\
bar\z
baz'
[[Foo
bar]]
[====[Foo
bar]=====] ]===]
baz]====]

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

[
	["string", "\"\""],
	["string", "\"Fo\\\"obar\""],
	["string", "\"Foo\\\r\nbar\\z\r\nbaz\""],
	["string", "''"],
	["string", "'Fo\\'obar'"],
	["string", "'Foo\\\r\nbar\\z\r\nbaz'"],
	["string", "[[Foo\r\nbar]]"],
	["string", "[====[Foo\r\nbar]=====] ]===]\r\nbaz]====]"]
]

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

Checks for strings.