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node_modules/stylelint/lib/rules/custom-property-pattern/index.cjs

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+// NOTICE: This file is generated by Rollup. To modify it,
+// please instead edit the ESM counterpart and rebuild with Rollup (npm run build).
+'use strict';
+
+const valueParser = require('postcss-value-parser');
+const validateTypes = require('../../utils/validateTypes.cjs');
+const nodeFieldIndices = require('../../utils/nodeFieldIndices.cjs');
+const isCustomProperty = require('../../utils/isCustomProperty.cjs');
+const isStandardSyntaxProperty = require('../../utils/isStandardSyntaxProperty.cjs');
+const isVarFunction = require('../../utils/isVarFunction.cjs');
+const report = require('../../utils/report.cjs');
+const ruleMessages = require('../../utils/ruleMessages.cjs');
+const validateOptions = require('../../utils/validateOptions.cjs');
+
+const ruleName = 'custom-property-pattern';
+
+const messages = ruleMessages(ruleName, {
+	expected: (propName, pattern) => `Expected "${propName}" to match pattern "${pattern}"`,
+});
+
+const meta = {
+	url: 'https://stylelint.io/user-guide/rules/custom-property-pattern',
+};
+
+const VAR_FUNC_REGEX = /var\(/i;
+
+/** @type {import('stylelint').CoreRules[ruleName]} */
+const rule = (primary) => {
+	return (root, result) => {
+		const validOptions = validateOptions(result, ruleName, {
+			actual: primary,
+			possible: [validateTypes.isRegExp, validateTypes.isString],
+		});
+
+		if (!validOptions) {
+			return;
+		}
+
+		const regexpPattern = validateTypes.isString(primary) ? new RegExp(primary) : primary;
+
+		/**
+		 * @param {string} property
+		 * @returns {boolean}
+		 */
+		function check(property) {
+			return (
+				!isCustomProperty(property) ||
+				!isStandardSyntaxProperty(property) ||
+				regexpPattern.test(property.slice(2))
+			);
+		}
+
+		root.walkDecls((decl) => {
+			const { prop, value } = decl;
+
+			if (VAR_FUNC_REGEX.test(value)) {
+				const parsedValue = valueParser(value);
+
+				parsedValue.walk((node) => {
+					if (!isVarFunction(node)) return;
+
+					const { nodes } = node;
+
+					const firstNode = nodes[0];
+
+					if (!firstNode || check(firstNode.value)) return;
+
+					complain(nodeFieldIndices.declarationValueIndex(decl) + firstNode.sourceIndex, firstNode.value, decl);
+				});
+			}
+
+			if (check(prop)) return;
+
+			complain(0, prop, decl);
+		});
+
+		/**
+		 * @param {number} index
+		 * @param {string} propName
+		 * @param {import('postcss').Declaration} decl
+		 */
+		function complain(index, propName, decl) {
+			report({
+				result,
+				ruleName,
+				message: messages.expected,
+				messageArgs: [propName, primary],
+				node: decl,
+				index,
+				endIndex: index + propName.length,
+			});
+		}
+	};
+};
+
+rule.ruleName = ruleName;
+rule.messages = messages;
+rule.meta = meta;
+
+module.exports = rule;