/
index.js
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/
index.js
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'use strict';
const isStandardSyntaxRule = require('../../utils/isStandardSyntaxRule');
const isStandardSyntaxSelector = require('../../utils/isStandardSyntaxSelector');
const { pseudoElements } = require('../../reference/selectors');
const optionsMatches = require('../../utils/optionsMatches');
const parseSelector = require('../../utils/parseSelector');
const report = require('../../utils/report');
const ruleMessages = require('../../utils/ruleMessages');
const validateOptions = require('../../utils/validateOptions');
const vendor = require('../../utils/vendor');
const { isString, isRegExp } = require('../../utils/validateTypes');
const ruleName = 'selector-pseudo-element-no-unknown';
const messages = ruleMessages(ruleName, {
rejected: (selector) => `Unexpected unknown pseudo-element selector "${selector}"`,
});
const meta = {
url: 'https://stylelint.io/user-guide/rules/list/selector-pseudo-element-no-unknown',
};
/** @type {import('stylelint').Rule} */
const rule = (primary, secondaryOptions) => {
return (root, result) => {
const validOptions = validateOptions(
result,
ruleName,
{ actual: primary },
{
actual: secondaryOptions,
possible: {
ignorePseudoElements: [isString, isRegExp],
},
optional: true,
},
);
if (!validOptions) {
return;
}
root.walkRules((ruleNode) => {
if (!isStandardSyntaxRule(ruleNode)) {
return;
}
const selector = ruleNode.selector;
// Return early before parse if no pseudos for performance
if (!selector.includes(':')) {
return;
}
parseSelector(selector, result, ruleNode, (selectorTree) => {
selectorTree.walkPseudos((pseudoNode) => {
const value = pseudoNode.value;
if (!isStandardSyntaxSelector(value)) {
return;
}
// Ignore pseudo-classes
if (value.slice(0, 2) !== '::') {
return;
}
if (optionsMatches(secondaryOptions, 'ignorePseudoElements', pseudoNode.value.slice(2))) {
return;
}
const name = value.slice(2);
if (vendor.prefix(name) || pseudoElements.has(name.toLowerCase())) {
return;
}
report({
message: messages.rejected(value),
node: ruleNode,
index: pseudoNode.sourceIndex,
ruleName,
result,
word: value,
});
});
});
});
};
};
rule.ruleName = ruleName;
rule.messages = messages;
rule.meta = meta;
module.exports = rule;