char-class_feature.test

[]
[^]
[foo]
[\]\b]
[.^$\1]
[\d\D\p{L}]

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[
	["char-class", [
		["char-class-punctuation", "["],
		["char-class-punctuation", "]"]
	]],
	["char-class", [
		["char-class-punctuation", "["],
		["char-class-negation", "^"],
		["char-class-punctuation", "]"]
	]],
	["char-class", [
		["char-class-punctuation", "["],
		"foo",
		["char-class-punctuation", "]"]
	]],
	["char-class", [
		["char-class-punctuation", "["],
		["special-escape", "\\]"],
		["escape", "\\b"],
		["char-class-punctuation", "]"]
	]],
	["char-class", [
		["char-class-punctuation", "["],
		".^$",
		["escape", "\\1"],
		["char-class-punctuation", "]"]
	]],
	["char-class", [
		["char-class-punctuation", "["],
		["char-set", "\\d"],
		["char-set", "\\D"],
		["char-set", "\\p{L}"],
		["char-class-punctuation", "]"]
	]]
]

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Checks for character sets.