regex_inclusion.test

/a+(?:[a-z]|\d)?/im;

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[
	["regex", [
		["regex-delimiter", "/"],
		["regex-source", [
			"a",
			["quantifier", "+"],
			["group", ["(?:"]],
			["char-class", [
				["char-class-punctuation", "["],
				["range", [
					"a",
					["range-punctuation", "-"],
					"z"
				]],
				["char-class-punctuation", "]"]
			]],
			["alternation", "|"],
			["char-set", "\\d"],
			["group", ")"],
			["quantifier", "?"]
		]],
		["regex-delimiter", "/"],
		["regex-flags", "im"]
	]],
	["punctuation", ";"]
]

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Checks for regex inclusion in JavaScript.