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node_modules/stylelint/lib/rules/selector-pseudo-element-no-unknown/index.mjs

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+import { isRegExp, isString } from '../../utils/validateTypes.mjs';
+import getRuleSelector from '../../utils/getRuleSelector.mjs';
+import isStandardSyntaxRule from '../../utils/isStandardSyntaxRule.mjs';
+import isStandardSyntaxSelector from '../../utils/isStandardSyntaxSelector.mjs';
+import optionsMatches from '../../utils/optionsMatches.mjs';
+import parseSelector from '../../utils/parseSelector.mjs';
+import { pseudoElements } from '../../reference/selectors.mjs';
+import report from '../../utils/report.mjs';
+import ruleMessages from '../../utils/ruleMessages.mjs';
+import validateOptions from '../../utils/validateOptions.mjs';
+import vendor from '../../utils/vendor.mjs';
+
+const ruleName = 'selector-pseudo-element-no-unknown';
+
+const messages = ruleMessages(ruleName, {
+	rejected: (selector) => `Unexpected unknown pseudo-element selector "${selector}"`,
+});
+
+const meta = {
+	url: 'https://stylelint.io/user-guide/rules/selector-pseudo-element-no-unknown',
+};
+
+/** @type {import('stylelint').CoreRules[ruleName]} */
+const rule = (primary, secondaryOptions) => {
+	return (root, result) => {
+		const validOptions = validateOptions(
+			result,
+			ruleName,
+			{ actual: primary },
+			{
+				actual: secondaryOptions,
+				possible: {
+					ignorePseudoElements: [isString, isRegExp],
+				},
+				optional: true,
+			},
+		);
+
+		if (!validOptions) {
+			return;
+		}
+
+		root.walkRules((ruleNode) => {
+			// Return early before parse if no pseudos for performance
+
+			if (!ruleNode.selector.includes(':')) {
+				return;
+			}
+
+			if (!isStandardSyntaxRule(ruleNode)) {
+				return;
+			}
+
+			parseSelector(getRuleSelector(ruleNode), result, ruleNode)?.walkPseudos((pseudoNode) => {
+				const value = pseudoNode.value;
+
+				if (!isStandardSyntaxSelector(value)) {
+					return;
+				}
+
+				// Ignore pseudo-classes
+				if (value.slice(0, 2) !== '::') {
+					return;
+				}
+
+				if (optionsMatches(secondaryOptions, 'ignorePseudoElements', pseudoNode.value.slice(2))) {
+					return;
+				}
+
+				const name = value.slice(2);
+
+				if (vendor.prefix(name) || pseudoElements.has(name.toLowerCase())) {
+					return;
+				}
+
+				const index = pseudoNode.sourceIndex;
+				const endIndex = index + value.length;
+
+				report({
+					message: messages.rejected,
+					messageArgs: [value],
+					node: ruleNode,
+					index,
+					endIndex,
+					ruleName,
+					result,
+				});
+			});
+		});
+	};
+};
+
+rule.ruleName = ruleName;
+rule.messages = messages;
+rule.meta = meta;
+export default rule;