1 | 'use strict';
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2 |
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3 | const _ = require('lodash');
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4 | const isStandardSyntaxRule = require('../../utils/isStandardSyntaxRule');
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5 | const parseSelector = require('../../utils/parseSelector');
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6 | const report = require('../../utils/report');
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7 | const ruleMessages = require('../../utils/ruleMessages');
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8 | const styleSearch = require('style-search');
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9 | const validateOptions = require('../../utils/validateOptions');
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10 |
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11 | const ruleName = 'selector-attribute-brackets-space-inside';
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12 |
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13 | const messages = ruleMessages(ruleName, {
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14 | expectedOpening: 'Expected single space after "["',
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15 | rejectedOpening: 'Unexpected whitespace after "["',
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16 | expectedClosing: 'Expected single space before "]"',
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17 | rejectedClosing: 'Unexpected whitespace before "]"',
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18 | });
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19 |
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20 | function rule(expectation, options, context) {
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21 | return (root, result) => {
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22 | const validOptions = validateOptions(result, ruleName, {
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23 | actual: expectation,
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24 | possible: ['always', 'never'],
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25 | });
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26 |
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27 | if (!validOptions) {
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28 | return;
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29 | }
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30 |
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31 | root.walkRules((rule) => {
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32 | if (!isStandardSyntaxRule(rule)) {
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33 | return;
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34 | }
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35 |
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36 | if (!rule.selector.includes('[')) {
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37 | return;
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38 | }
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39 |
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40 | const selector = rule.raws.selector ? rule.raws.selector.raw : rule.selector;
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41 |
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42 | let hasFixed;
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43 | const fixedSelector = parseSelector(selector, result, rule, (selectorTree) => {
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44 | selectorTree.walkAttributes((attributeNode) => {
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45 | const attributeSelectorString = attributeNode.toString();
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46 |
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47 | styleSearch({ source: attributeSelectorString, target: '[' }, (match) => {
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48 | const nextCharIsSpace = attributeSelectorString[match.startIndex + 1] === ' ';
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49 | const index = attributeNode.sourceIndex + match.startIndex + 1;
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50 |
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51 | if (nextCharIsSpace && expectation === 'never') {
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52 | if (context.fix) {
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53 | hasFixed = true;
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54 | fixBefore(attributeNode);
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55 |
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56 | return;
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57 | }
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58 |
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59 | complain(messages.rejectedOpening, index);
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60 | }
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61 |
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62 | if (!nextCharIsSpace && expectation === 'always') {
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63 | if (context.fix) {
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64 | hasFixed = true;
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65 | fixBefore(attributeNode);
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66 |
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67 | return;
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68 | }
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69 |
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70 | complain(messages.expectedOpening, index);
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71 | }
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72 | });
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73 |
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74 | styleSearch({ source: attributeSelectorString, target: ']' }, (match) => {
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75 | const prevCharIsSpace = attributeSelectorString[match.startIndex - 1] === ' ';
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76 | const index = attributeNode.sourceIndex + match.startIndex - 1;
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77 |
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78 | if (prevCharIsSpace && expectation === 'never') {
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79 | if (context.fix) {
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80 | hasFixed = true;
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81 | fixAfter(attributeNode);
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82 |
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83 | return;
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84 | }
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85 |
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86 | complain(messages.rejectedClosing, index);
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87 | }
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88 |
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89 | if (!prevCharIsSpace && expectation === 'always') {
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90 | if (context.fix) {
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91 | hasFixed = true;
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92 | fixAfter(attributeNode);
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93 |
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94 | return;
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95 | }
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96 |
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97 | complain(messages.expectedClosing, index);
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98 | }
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99 | });
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100 | });
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101 | });
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102 |
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103 | if (hasFixed) {
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104 | if (!rule.raws.selector) {
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105 | rule.selector = fixedSelector;
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106 | } else {
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107 | rule.raws.selector.raw = fixedSelector;
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108 | }
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109 | }
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110 |
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111 | function complain(message, index) {
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112 | report({
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113 | message,
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114 | index,
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115 | result,
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116 | ruleName,
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117 | node: rule,
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118 | });
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119 | }
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120 | });
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121 | };
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122 |
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123 | function fixBefore(attributeNode) {
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124 | const rawAttrBefore = _.get(attributeNode, 'raws.spaces.attribute.before');
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125 | const { attrBefore, setAttrBefore } = rawAttrBefore
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126 | ? {
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127 | attrBefore: rawAttrBefore,
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128 | setAttrBefore(fixed) {
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129 | attributeNode.raws.spaces.attribute.before = fixed;
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130 | },
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131 | }
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132 | : {
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133 | attrBefore: _.get(attributeNode, 'spaces.attribute.before', ''),
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134 | setAttrBefore(fixed) {
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135 | _.set(attributeNode, 'spaces.attribute.before', fixed);
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136 | },
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137 | };
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138 |
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139 | if (expectation === 'always') {
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140 | setAttrBefore(attrBefore.replace(/^\s*/, ' '));
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141 | } else if (expectation === 'never') {
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142 | setAttrBefore(attrBefore.replace(/^\s*/, ''));
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143 | }
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144 | }
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145 |
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146 | function fixAfter(attributeNode) {
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147 | let key;
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148 |
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149 | if (attributeNode.operator) {
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150 | if (attributeNode.insensitive) {
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151 | key = 'insensitive';
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152 | } else {
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153 | key = 'value';
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154 | }
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155 | } else {
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156 | key = 'attribute';
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157 | }
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158 |
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159 | const rawAfter = _.get(attributeNode, `raws.spaces.${key}.after`);
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160 | const { after, setAfter } = rawAfter
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161 | ? {
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162 | after: rawAfter,
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163 | setAfter(fixed) {
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164 | attributeNode.raws.spaces[key].after = fixed;
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165 | },
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166 | }
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167 | : {
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168 | after: _.get(attributeNode, `spaces.${key}.after`, ''),
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169 | setAfter(fixed) {
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170 | _.set(attributeNode, `spaces.${key}.after`, fixed);
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171 | },
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172 | };
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173 |
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174 | if (expectation === 'always') {
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175 | setAfter(after.replace(/\s*$/, ' '));
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176 | } else if (expectation === 'never') {
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177 | setAfter(after.replace(/\s*$/, ''));
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178 | }
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179 | }
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180 | }
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181 |
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182 | rule.ruleName = ruleName;
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183 | rule.messages = messages;
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184 | module.exports = rule;
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