1 |
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2 |
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3 | 'use strict';
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4 |
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5 | const _ = require('lodash');
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6 | const isStandardSyntaxRule = require('../../utils/isStandardSyntaxRule');
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7 | const isStandardSyntaxSelector = require('../../utils/isStandardSyntaxSelector');
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8 | const keywordSets = require('../../reference/keywordSets');
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9 | const optionsMatches = require('../../utils/optionsMatches');
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10 | const parseSelector = require('../../utils/parseSelector');
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11 | const postcss = require('postcss');
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12 | const report = require('../../utils/report');
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13 | const ruleMessages = require('../../utils/ruleMessages');
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14 | const validateOptions = require('../../utils/validateOptions');
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15 |
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16 | const ruleName = 'selector-pseudo-element-no-unknown';
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17 |
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18 | const messages = ruleMessages(ruleName, {
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19 | rejected: (selector) => `Unexpected unknown pseudo-element selector "${selector}"`,
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20 | });
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21 |
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22 | function rule(actual, options) {
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23 | return (root, result) => {
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24 | const validOptions = validateOptions(
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25 | result,
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26 | ruleName,
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27 | { actual },
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28 | {
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29 | actual: options,
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30 | possible: {
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31 | ignorePseudoElements: [_.isString],
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32 | },
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33 | optional: true,
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34 | },
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35 | );
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36 |
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37 | if (!validOptions) {
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38 | return;
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39 | }
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40 |
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41 | root.walkRules((rule) => {
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42 | if (!isStandardSyntaxRule(rule)) {
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43 | return;
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44 | }
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45 |
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46 | const selector = rule.selector;
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47 |
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48 |
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49 |
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50 | if (!selector.includes(':')) {
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51 | return;
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52 | }
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53 |
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54 | parseSelector(selector, result, rule, (selectorTree) => {
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55 | selectorTree.walkPseudos((pseudoNode) => {
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56 | const value = pseudoNode.value;
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57 |
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58 | if (!isStandardSyntaxSelector(value)) {
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59 | return;
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60 | }
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61 |
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62 |
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63 | if (value.slice(0, 2) !== '::') {
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64 | return;
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65 | }
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66 |
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67 | if (optionsMatches(options, 'ignorePseudoElements', pseudoNode.value.slice(2))) {
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68 | return;
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69 | }
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70 |
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71 | const name = value.slice(2);
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72 |
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73 | if (postcss.vendor.prefix(name) || keywordSets.pseudoElements.has(name.toLowerCase())) {
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74 | return;
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75 | }
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76 |
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77 | report({
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78 | message: messages.rejected(value),
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79 | node: rule,
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80 | index: pseudoNode.sourceIndex,
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81 | ruleName,
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82 | result,
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83 | });
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84 | });
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85 | });
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86 | });
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87 | };
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88 | }
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89 |
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90 | rule.ruleName = ruleName;
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91 | rule.messages = messages;
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92 | module.exports = rule;
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