""
"fo\"o"
'x'
'\''
'\u2200'
"""foo"""
"""fo"o
bar"""
'''foo'''
'''fo'o
bar'''

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

[
	["string", "\"\""],
	["string", "\"fo\\\"o\""],
	["string", "'x'"],
	["string", "'\\''"],
	["string", "'\\u2200'"],
	["string", "\"\"\"foo\"\"\""],
	["string", "\"\"\"fo\"o\r\nbar\"\"\""],
	["string", "'''foo'''"],
	["string", "'''fo'o\r\nbar'''"]
]

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

Checks for strings and characters.