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node_modules/stylelint/lib/rules/function-no-unknown/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 node_module = require('node:module');
+const cssParserAlgorithms = require('@csstools/css-parser-algorithms');
+const cssTokenizer = require('@csstools/css-tokenizer');
+const validateTypes = require('../../utils/validateTypes.cjs');
+const nodeFieldIndices = require('../../utils/nodeFieldIndices.cjs');
+const isCustomFunction = require('../../utils/isCustomFunction.cjs');
+const isStandardSyntaxValue = require('../../utils/isStandardSyntaxValue.cjs');
+const optionsMatches = require('../../utils/optionsMatches.cjs');
+const report = require('../../utils/report.cjs');
+const ruleMessages = require('../../utils/ruleMessages.cjs');
+const validateOptions = require('../../utils/validateOptions.cjs');
+
+var _documentCurrentScript = typeof document !== 'undefined' ? document.currentScript : null;
+/** @todo leverage import attributes once support for Node.js v18.19 is dropped */
+const require$1 = node_module.createRequire((typeof document === 'undefined' ? require('u' + 'rl').pathToFileURL(__filename).href : (_documentCurrentScript && _documentCurrentScript.tagName.toUpperCase() === 'SCRIPT' && _documentCurrentScript.src || new URL('lib/rules/function-no-unknown/index.cjs', document.baseURI).href)));
+const functionsList = require$1('css-functions-list/index.json');
+
+/** @todo submit PR to css-functions-list */
+const FUNCTIONS = [...functionsList, 'running'];
+
+const ruleName = 'function-no-unknown';
+
+const messages = ruleMessages(ruleName, {
+	rejected: (name) => `Unexpected unknown function "${name}"`,
+});
+
+const meta = {
+	url: 'https://stylelint.io/user-guide/rules/function-no-unknown',
+};
+
+/** @type {import('stylelint').CoreRules[ruleName]} */
+const rule = (primary, secondaryOptions) => {
+	return (root, result) => {
+		const validOptions = validateOptions(
+			result,
+			ruleName,
+			{ actual: primary },
+			{
+				actual: secondaryOptions,
+				possible: {
+					ignoreFunctions: [validateTypes.isString, validateTypes.isRegExp],
+				},
+				optional: true,
+			},
+		);
+
+		if (!validOptions) {
+			return;
+		}
+
+		root.walkDecls((decl) => {
+			const { value } = decl;
+
+			if (!value.includes('(')) return;
+
+			if (!isStandardSyntaxValue(value)) return;
+
+			cssParserAlgorithms.walk(cssParserAlgorithms.parseListOfComponentValues(cssTokenizer.tokenize({ css: value })), ({ node }) => {
+				if (!cssParserAlgorithms.isFunctionNode(node)) return;
+
+				const name = node.getName();
+
+				if (isCustomFunction(name)) return;
+
+				if (optionsMatches(secondaryOptions, 'ignoreFunctions', name)) return;
+
+				if (FUNCTIONS.includes(name.toLowerCase())) return;
+
+				report({
+					message: messages.rejected,
+					messageArgs: [name],
+					node: decl,
+					index: nodeFieldIndices.declarationValueIndex(decl) + node.name[2],
+					result,
+					ruleName,
+					word: name,
+				});
+			});
+		});
+	};
+};
+
+rule.ruleName = ruleName;
+rule.messages = messages;
+rule.meta = meta;
+
+module.exports = rule;

node_modules/stylelint/lib/rules/function-no-unknown/index.mjs

@@ -0,0 +1,87 @@
+import { createRequire } from 'node:module';
+
+import { isFunctionNode, parseListOfComponentValues, walk } from '@csstools/css-parser-algorithms';
+import { tokenize } from '@csstools/css-tokenizer';
+
+import { isRegExp, isString } from '../../utils/validateTypes.mjs';
+import { declarationValueIndex } from '../../utils/nodeFieldIndices.mjs';
+import isCustomFunction from '../../utils/isCustomFunction.mjs';
+import isStandardSyntaxValue from '../../utils/isStandardSyntaxValue.mjs';
+import optionsMatches from '../../utils/optionsMatches.mjs';
+import report from '../../utils/report.mjs';
+import ruleMessages from '../../utils/ruleMessages.mjs';
+import validateOptions from '../../utils/validateOptions.mjs';
+
+/** @todo leverage import attributes once support for Node.js v18.19 is dropped */
+const require = createRequire(import.meta.url);
+const functionsList = require('css-functions-list/index.json');
+
+/** @todo submit PR to css-functions-list */
+const FUNCTIONS = [...functionsList, 'running'];
+
+const ruleName = 'function-no-unknown';
+
+const messages = ruleMessages(ruleName, {
+	rejected: (name) => `Unexpected unknown function "${name}"`,
+});
+
+const meta = {
+	url: 'https://stylelint.io/user-guide/rules/function-no-unknown',
+};
+
+/** @type {import('stylelint').CoreRules[ruleName]} */
+const rule = (primary, secondaryOptions) => {
+	return (root, result) => {
+		const validOptions = validateOptions(
+			result,
+			ruleName,
+			{ actual: primary },
+			{
+				actual: secondaryOptions,
+				possible: {
+					ignoreFunctions: [isString, isRegExp],
+				},
+				optional: true,
+			},
+		);
+
+		if (!validOptions) {
+			return;
+		}
+
+		root.walkDecls((decl) => {
+			const { value } = decl;
+
+			if (!value.includes('(')) return;
+
+			if (!isStandardSyntaxValue(value)) return;
+
+			walk(parseListOfComponentValues(tokenize({ css: value })), ({ node }) => {
+				if (!isFunctionNode(node)) return;
+
+				const name = node.getName();
+
+				if (isCustomFunction(name)) return;
+
+				if (optionsMatches(secondaryOptions, 'ignoreFunctions', name)) return;
+
+				if (FUNCTIONS.includes(name.toLowerCase())) return;
+
+				report({
+					message: messages.rejected,
+					messageArgs: [name],
+					node: decl,
+					index: declarationValueIndex(decl) + node.name[2],
+					result,
+					ruleName,
+					word: name,
+				});
+			});
+		});
+	};
+};
+
+rule.ruleName = ruleName;
+rule.messages = messages;
+rule.meta = meta;
+export default rule;