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node_modules/stylelint/lib/rules/string-no-newline/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 cssTokenizer = require('@csstools/css-tokenizer');
+const nodeFieldIndices = require('../../utils/nodeFieldIndices.cjs');
+const isStandardSyntaxSelector = require('../../utils/isStandardSyntaxSelector.cjs');
+const report = require('../../utils/report.cjs');
+const ruleMessages = require('../../utils/ruleMessages.cjs');
+const validateOptions = require('../../utils/validateOptions.cjs');
+
+const ruleName = 'string-no-newline';
+const reNewLine = /\r?\n/;
+
+const messages = ruleMessages(ruleName, {
+	rejected: 'Unexpected newline in string',
+});
+
+const meta = {
+	url: 'https://stylelint.io/user-guide/rules/string-no-newline',
+};
+
+/** @type {import('stylelint').CoreRules[ruleName]} */
+const rule = (primary) => {
+	return (root, result) => {
+		const validOptions = validateOptions(result, ruleName, { actual: primary });
+
+		if (!validOptions) {
+			return;
+		}
+
+		root.walk((node) => {
+			switch (node.type) {
+				case 'atrule':
+					check(node, node.params, nodeFieldIndices.atRuleParamIndex);
+					break;
+				case 'decl':
+					check(node, node.value, nodeFieldIndices.declarationValueIndex);
+					break;
+				case 'rule':
+					checkRule(node);
+					break;
+			}
+		});
+
+		/**
+		 * @param {import('postcss').Rule} ruleNode
+		 * @returns {void}
+		 */
+		function checkRule(ruleNode) {
+			// Get out quickly if there are no new line
+			if (!reNewLine.test(ruleNode.selector)) {
+				return;
+			}
+
+			if (!isStandardSyntaxSelector(ruleNode.selector)) {
+				return;
+			}
+
+			check(ruleNode, ruleNode.selector, () => 0);
+		}
+
+		/**
+		 * @template {import('postcss').AtRule | import('postcss').Rule | import('postcss').Declaration} T
+		 * @param {T} node
+		 * @param {string} value
+		 * @param {(node: T) => number} getIndex
+		 * @returns {void}
+		 */
+		function check(node, value, getIndex) {
+			// Get out quickly if there are no new line
+			if (!reNewLine.test(value)) {
+				return;
+			}
+
+			cssTokenizer.tokenize(
+				{ css: value },
+				{
+					onParseError: (err) => {
+						if (!(err instanceof cssTokenizer.ParseErrorWithToken)) return;
+
+						if (err.message !== cssTokenizer.ParseErrorMessage.UnexpectedNewLineInString) return;
+
+						const [, , start, end] = err.token;
+
+						const nodeIndex = getIndex(node);
+
+						report({
+							message: messages.rejected,
+							node,
+							index: nodeIndex + start,
+							endIndex: nodeIndex + end + 1,
+							result,
+							ruleName,
+						});
+					},
+				},
+			);
+		}
+	};
+};
+
+rule.ruleName = ruleName;
+rule.messages = messages;
+rule.meta = meta;
+
+module.exports = rule;