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- 'use strict';
- const _ = require('lodash');
- const isStandardSyntaxRule = require('../../utils/isStandardSyntaxRule');
- const isStandardSyntaxSelector = require('../../utils/isStandardSyntaxSelector');
- const keywordSets = require('../../reference/keywordSets');
- const optionsMatches = require('../../utils/optionsMatches');
- const parseSelector = require('../../utils/parseSelector');
- const postcss = require('postcss');
- const report = require('../../utils/report');
- const ruleMessages = require('../../utils/ruleMessages');
- const validateOptions = require('../../utils/validateOptions');
- const ruleName = 'selector-pseudo-element-no-unknown';
- const messages = ruleMessages(ruleName, {
- rejected: (selector) => `Unexpected unknown pseudo-element selector "${selector}"`,
- });
- function rule(actual, options) {
- return (root, result) => {
- const validOptions = validateOptions(
- result,
- ruleName,
- { actual },
- {
- actual: options,
- possible: {
- ignorePseudoElements: [_.isString],
- },
- optional: true,
- },
- );
- if (!validOptions) {
- return;
- }
- root.walkRules((rule) => {
- if (!isStandardSyntaxRule(rule)) {
- return;
- }
- const selector = rule.selector;
-
- if (!selector.includes(':')) {
- return;
- }
- parseSelector(selector, result, rule, (selectorTree) => {
- selectorTree.walkPseudos((pseudoNode) => {
- const value = pseudoNode.value;
- if (!isStandardSyntaxSelector(value)) {
- return;
- }
-
- if (value.slice(0, 2) !== '::') {
- return;
- }
- if (optionsMatches(options, 'ignorePseudoElements', pseudoNode.value.slice(2))) {
- return;
- }
- const name = value.slice(2);
- if (postcss.vendor.prefix(name) || keywordSets.pseudoElements.has(name.toLowerCase())) {
- return;
- }
- report({
- message: messages.rejected(value),
- node: rule,
- index: pseudoNode.sourceIndex,
- ruleName,
- result,
- });
- });
- });
- });
- };
- }
- rule.ruleName = ruleName;
- rule.messages = messages;
- module.exports = rule;
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