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node_modules/stylelint/lib/utils/getStrippedSelectorSource.mjs

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+import selectorParser from 'postcss-selector-parser';
+
+const { isComment } = selectorParser;
+
+/**
+ * Get the source of a selector, excluding surrounding whitespace and comments.
+ *
+ * @param {import('postcss-selector-parser').Selector} node
+ *
+ * @returns {{selector: string, index: number, endIndex: number}}
+ */
+export default function getStrippedSelectorSource(node) {
+	const firstIndex = node.nodes.findIndex((x) => !isComment(x));
+	const lastIndex = node.nodes.findLastIndex((x) => !isComment(x));
+
+	const first = node.nodes[firstIndex];
+	let last = node.nodes[lastIndex];
+
+	if (!first || !last) {
+		const selector = node.toString().trim();
+		const index = node.sourceIndex ?? 0;
+		const endIndex = index + selector.length;
+
+		return {
+			selector,
+			index,
+			endIndex,
+		};
+	}
+
+	last = last.rawSpaceAfter.length ? last.clone() : last;
+	last.rawSpaceAfter = '';
+
+	let selector = node.nodes.slice(firstIndex, lastIndex).map(String).join('');
+
+	selector += last.toString();
+	selector = selector.trim();
+
+	const index = first.sourceIndex ?? 0;
+	const endIndex = index + selector.length;
+
+	return {
+		selector,
+		index,
+		endIndex,
+	};
+}