stylelint/lib/rules/selector-id-pattern/index.js

A mighty, modern CSS linter.

'use strict';

const isStandardSyntaxRule = require('../../utils/isStandardSyntaxRule');
const parseSelector = require('../../utils/parseSelector');
const report = require('../../utils/report');
const ruleMessages = require('../../utils/ruleMessages');
const validateOptions = require('../../utils/validateOptions');
const { isRegExp, isString } = require('../../utils/validateTypes');

const ruleName = 'selector-id-pattern';

const messages = ruleMessages(ruleName, {
	expected: (selectorValue, pattern) =>
		`Expected ID selector "#${selectorValue}" to match pattern "${pattern}"`,
});

const meta = {
	url: 'https://stylelint.io/user-guide/rules/list/selector-id-pattern',
};

/** @type {import('stylelint').Rule} */
const rule = (primary) => {
	return (root, result) => {
		const validOptions = validateOptions(result, ruleName, {
			actual: primary,
			possible: [isRegExp, isString],
		});

		if (!validOptions) {
			return;
		}

		/** @type {RegExp} */
		const normalizedPattern = isString(primary) ? new RegExp(primary) : primary;

		root.walkRules((ruleNode) => {
			if (!isStandardSyntaxRule(ruleNode)) {
				return;
			}

			const selector = ruleNode.selector;

			parseSelector(selector, result, ruleNode, (fullSelector) => {
				fullSelector.walk((selectorNode) => {
					if (selectorNode.type !== 'id') {
						return;
					}

					const value = selectorNode.value;
					const sourceIndex = selectorNode.sourceIndex;

					if (normalizedPattern.test(value)) {
						return;
					}

					report({
						result,
						ruleName,
						message: messages.expected(value, primary),
						node: ruleNode,
						index: sourceIndex,
					});
				});
			});
		});
	};
};

rule.ruleName = ruleName;
rule.messages = messages;
rule.meta = meta;
module.exports = rule;