char_feature.test

'a'
'ä'
'本'
'\t'
'\000'
'\007'
'\377'
'\x07'
'\xff'
'\u12e4'
'\U00101234'
'\''

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

[
	["char", "'a'"],
	["char", "'ä'"],
	["char", "'本'"],
	["char", "'\\t'"],
	["char", "'\\000'"],
	["char", "'\\007'"],
	["char", "'\\377'"],
	["char", "'\\x07'"],
	["char", "'\\xff'"],
	["char", "'\\u12e4'"],
	["char", "'\\U00101234'"],
	["char", "'\\''"]
]