1 |
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2 |
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3 | 'use strict';
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4 |
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5 | const atRuleParamIndex = require('../../utils/atRuleParamIndex');
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6 | const declarationValueIndex = require('../../utils/declarationValueIndex');
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7 | const isStandardSyntaxSelector = require('../../utils/isStandardSyntaxSelector');
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8 | const parseSelector = require('../../utils/parseSelector');
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9 | const report = require('../../utils/report');
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10 | const ruleMessages = require('../../utils/ruleMessages');
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11 | const validateOptions = require('../../utils/validateOptions');
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12 | const valueParser = require('postcss-value-parser');
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13 |
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14 | const ruleName = 'string-no-newline';
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15 | const reNewLine = /(\r?\n)/;
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16 |
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17 | const messages = ruleMessages(ruleName, {
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18 | rejected: 'Unexpected newline in string',
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19 | });
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20 |
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21 | function rule(actual) {
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22 | return (root, result) => {
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23 | const validOptions = validateOptions(result, ruleName, { actual });
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24 |
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25 | if (!validOptions) {
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26 | return;
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27 | }
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28 |
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29 | root.walk((node) => {
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30 | switch (node.type) {
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31 | case 'atrule':
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32 | checkDeclOrAtRule(node, node.params, atRuleParamIndex);
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33 | break;
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34 | case 'decl':
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35 | checkDeclOrAtRule(node, node.value, declarationValueIndex);
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36 | break;
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37 | case 'rule':
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38 | checkRule(node);
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39 | break;
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40 | }
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41 | });
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42 |
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43 | function checkRule(rule) {
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44 |
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45 | if (!reNewLine.test(rule.selector)) {
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46 | return;
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47 | }
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48 |
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49 | if (!isStandardSyntaxSelector(rule.selector)) {
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50 | return;
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51 | }
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52 |
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53 | parseSelector(rule.selector, result, rule, (selectorTree) => {
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54 | selectorTree.walkAttributes((attributeNode) => {
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55 | if (!reNewLine.test(attributeNode.value)) {
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56 | return;
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57 | }
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58 |
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59 | const openIndex = [
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60 |
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61 | attributeNode.attribute,
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62 |
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63 | attributeNode.operator,
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64 |
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65 | RegExp.leftContext,
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66 | ].reduce(
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67 | (index, str) => index + str.length,
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68 |
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69 | attributeNode.sourceIndex,
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70 | );
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71 |
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72 | report({
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73 | message: messages.rejected,
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74 | node: rule,
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75 | index: openIndex,
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76 | result,
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77 | ruleName,
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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 | function checkDeclOrAtRule(node, value, getIndex) {
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84 |
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85 | if (!reNewLine.test(value)) {
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86 | return;
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87 | }
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88 |
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89 | valueParser(value).walk((valueNode) => {
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90 | if (valueNode.type !== 'string' || !reNewLine.test(valueNode.value)) {
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91 | return;
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92 | }
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93 |
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94 | const openIndex = [
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95 |
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96 | valueNode.quote,
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97 |
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98 | RegExp.leftContext,
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99 | ].reduce((index, str) => index + str.length, valueNode.sourceIndex);
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100 |
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101 | report({
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102 | message: messages.rejected,
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103 | node,
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104 | index: getIndex(node) + openIndex,
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105 | result,
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106 | ruleName,
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107 | });
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108 | });
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109 | }
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110 | };
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111 | }
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112 |
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113 | rule.ruleName = ruleName;
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114 | rule.messages = messages;
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115 | module.exports = rule;
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