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node_modules/stylelint/lib/utils/isContextFunctionalPseudoClass.mjs

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+import {
+	aNPlusBOfSNotationPseudoClasses,
+	logicalCombinationsPseudoClasses,
+} from '../reference/selectors.mjs';
+
+/**
+ * Check whether a node is a context-functional pseudo-class (i.e. either a logical combination
+ * or a 'aNPlusBOfSNotationPseudoClasses' / tree-structural pseudo-class)
+ *
+ * @param {import('postcss-selector-parser').Node | import('postcss-selector-parser').Container | undefined} node - postcss-selector-parser node (of type pseudo)
+ * @returns {node is import('postcss-selector-parser').Pseudo} If `true`, the node is a context-functional pseudo-class
+ */
+export default function isContextFunctionalPseudoClass(node) {
+	if (node?.type === 'pseudo') {
+		const normalisedParentName = node.value.toLowerCase().replace(/:+/, '');
+
+		return (
+			logicalCombinationsPseudoClasses.has(normalisedParentName) ||
+			aNPlusBOfSNotationPseudoClasses.has(normalisedParentName)
+		);
+	}
+
+	return false;
+}