1 | 'use strict';
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2 |
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3 | const ruleMessages = require('../../utils/ruleMessages');
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4 | const selectorListCommaWhitespaceChecker = require('../selectorListCommaWhitespaceChecker');
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5 | const validateOptions = require('../../utils/validateOptions');
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6 | const whitespaceChecker = require('../../utils/whitespaceChecker');
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7 |
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8 | const ruleName = 'selector-list-comma-space-before';
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9 |
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10 | const messages = ruleMessages(ruleName, {
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11 | expectedBefore: () => 'Expected single space before ","',
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12 | rejectedBefore: () => 'Unexpected whitespace before ","',
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13 | expectedBeforeSingleLine: () => 'Expected single space before "," in a single-line list',
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14 | rejectedBeforeSingleLine: () => 'Unexpected whitespace before "," in a single-line list',
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15 | });
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16 |
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17 | const meta = {
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18 | url: 'https://stylelint.io/user-guide/rules/list/selector-list-comma-space-before',
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19 | };
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20 |
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21 |
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22 | const rule = (primary, _secondaryOptions, context) => {
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23 | const checker = whitespaceChecker('space', primary, messages);
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24 |
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25 | return (root, result) => {
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26 | const validOptions = validateOptions(result, ruleName, {
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27 | actual: primary,
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28 | possible: ['always', 'never', 'always-single-line', 'never-single-line'],
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29 | });
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30 |
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31 | if (!validOptions) {
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32 | return;
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33 | }
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34 |
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35 |
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36 | let fixData;
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37 |
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38 | selectorListCommaWhitespaceChecker({
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39 | root,
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40 | result,
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41 | locationChecker: checker.before,
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42 | checkedRuleName: ruleName,
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43 | fix: context.fix
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44 | ? (ruleNode, index) => {
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45 | fixData = fixData || new Map();
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46 | const commaIndices = fixData.get(ruleNode) || [];
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47 |
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48 | commaIndices.push(index);
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49 | fixData.set(ruleNode, commaIndices);
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50 |
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51 | return true;
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52 | }
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53 | : null,
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54 | });
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55 |
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56 | if (fixData) {
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57 | for (const [ruleNode, commaIndices] of fixData.entries()) {
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58 | let selector = ruleNode.raws.selector ? ruleNode.raws.selector.raw : ruleNode.selector;
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59 |
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60 | for (const index of commaIndices.sort((a, b) => b - a)) {
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61 | let beforeSelector = selector.slice(0, index);
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62 | const afterSelector = selector.slice(index);
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63 |
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64 | if (primary.includes('always')) {
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65 | beforeSelector = beforeSelector.replace(/\s*$/, ' ');
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66 | } else if (primary.includes('never')) {
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67 | beforeSelector = beforeSelector.replace(/\s*$/, '');
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68 | }
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69 |
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70 | selector = beforeSelector + afterSelector;
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71 | }
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72 |
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73 | if (ruleNode.raws.selector) {
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74 | ruleNode.raws.selector.raw = selector;
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75 | } else {
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76 | ruleNode.selector = selector;
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77 | }
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78 | }
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79 | }
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80 | };
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81 | };
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82 |
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83 | rule.ruleName = ruleName;
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84 | rule.messages = messages;
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85 | rule.meta = meta;
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86 | module.exports = rule;
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