' + func(text) + '
';\n * });\n *\n * p('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles
'\n */\n function wrap(value, wrapper) {\n return partial(castFunction(wrapper), value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Casts `value` as an array if it's not one.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Lang\n * @param {*} value The value to inspect.\n * @returns {Array} Returns the cast array.\n * @example\n *\n * _.castArray(1);\n * // => [1]\n *\n * _.castArray({ 'a': 1 });\n * // => [{ 'a': 1 }]\n *\n * _.castArray('abc');\n * // => ['abc']\n *\n * _.castArray(null);\n * // => [null]\n *\n * _.castArray(undefined);\n * // => [undefined]\n *\n * _.castArray();\n * // => []\n *\n * var array = [1, 2, 3];\n * console.log(_.castArray(array) === array);\n * // => true\n */\n function castArray() {\n if (!arguments.length) {\n return [];\n }\n var value = arguments[0];\n return isArray(value) ? value : [value];\n }\n\n /**\n * Creates a shallow clone of `value`.\n *\n * **Note:** This method is loosely based on the\n * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n * and supports cloning arrays, array buffers, booleans, date objects, maps,\n * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n * arrays. The own enumerable properties of `arguments` objects are cloned\n * as plain objects. An empty object is returned for uncloneable values such\n * as error objects, functions, DOM nodes, and WeakMaps.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to clone.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeep\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var shallow = _.clone(objects);\n * console.log(shallow[0] === objects[0]);\n * // => true\n */\n function clone(value) {\n return baseClone(value, CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.clone` except that it accepts `customizer` which\n * is invoked to produce the cloned value. If `customizer` returns `undefined`,\n * cloning is handled by the method instead. The `customizer` is invoked with\n * up to four arguments; (value [, index|key, object, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeepWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(false);\n * }\n * }\n *\n * var el = _.cloneWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 0\n */\n function cloneWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * This method is like `_.clone` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @returns {*} Returns the deep cloned value.\n * @see _.clone\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var deep = _.cloneDeep(objects);\n * console.log(deep[0] === objects[0]);\n * // => false\n */\n function cloneDeep(value) {\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.cloneWith` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the deep cloned value.\n * @see _.cloneWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(true);\n * }\n * }\n *\n * var el = _.cloneDeepWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 20\n */\n function cloneDeepWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * Checks if `object` conforms to `source` by invoking the predicate\n * properties of `source` with the corresponding property values of `object`.\n *\n * **Note:** This method is equivalent to `_.conforms` when `source` is\n * partially applied.\n *\n * @static\n * @memberOf _\n * @since 4.14.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 1; } });\n * // => true\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 2; } });\n * // => false\n */\n function conformsTo(object, source) {\n return source == null || baseConformsTo(object, source, keys(source));\n }\n\n /**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\n function eq(value, other) {\n return value === other || (value !== value && other !== other);\n }\n\n /**\n * Checks if `value` is greater than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n * @see _.lt\n * @example\n *\n * _.gt(3, 1);\n * // => true\n *\n * _.gt(3, 3);\n * // => false\n *\n * _.gt(1, 3);\n * // => false\n */\n var gt = createRelationalOperation(baseGt);\n\n /**\n * Checks if `value` is greater than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than or equal to\n * `other`, else `false`.\n * @see _.lte\n * @example\n *\n * _.gte(3, 1);\n * // => true\n *\n * _.gte(3, 3);\n * // => true\n *\n * _.gte(1, 3);\n * // => false\n */\n var gte = createRelationalOperation(function(value, other) {\n return value >= other;\n });\n\n /**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\n var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n !propertyIsEnumerable.call(value, 'callee');\n };\n\n /**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\n var isArray = Array.isArray;\n\n /**\n * Checks if `value` is classified as an `ArrayBuffer` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n * @example\n *\n * _.isArrayBuffer(new ArrayBuffer(2));\n * // => true\n *\n * _.isArrayBuffer(new Array(2));\n * // => false\n */\n var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;\n\n /**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\n function isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n }\n\n /**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\n function isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n }\n\n /**\n * Checks if `value` is classified as a boolean primitive or object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.\n * @example\n *\n * _.isBoolean(false);\n * // => true\n *\n * _.isBoolean(null);\n * // => false\n */\n function isBoolean(value) {\n return value === true || value === false ||\n (isObjectLike(value) && baseGetTag(value) == boolTag);\n }\n\n /**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\n var isBuffer = nativeIsBuffer || stubFalse;\n\n /**\n * Checks if `value` is classified as a `Date` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n * @example\n *\n * _.isDate(new Date);\n * // => true\n *\n * _.isDate('Mon April 23 2012');\n * // => false\n */\n var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;\n\n /**\n * Checks if `value` is likely a DOM element.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n * @example\n *\n * _.isElement(document.body);\n * // => true\n *\n * _.isElement('');\n * // => false\n */\n function isElement(value) {\n return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n }\n\n /**\n * Checks if `value` is an empty object, collection, map, or set.\n *\n * Objects are considered empty if they have no own enumerable string keyed\n * properties.\n *\n * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n * jQuery-like collections are considered empty if they have a `length` of `0`.\n * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n * @example\n *\n * _.isEmpty(null);\n * // => true\n *\n * _.isEmpty(true);\n * // => true\n *\n * _.isEmpty(1);\n * // => true\n *\n * _.isEmpty([1, 2, 3]);\n * // => false\n *\n * _.isEmpty({ 'a': 1 });\n * // => false\n */\n function isEmpty(value) {\n if (value == null) {\n return true;\n }\n if (isArrayLike(value) &&\n (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||\n isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n return !value.length;\n }\n var tag = getTag(value);\n if (tag == mapTag || tag == setTag) {\n return !value.size;\n }\n if (isPrototype(value)) {\n return !baseKeys(value).length;\n }\n for (var key in value) {\n if (hasOwnProperty.call(value, key)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * Performs a deep comparison between two values to determine if they are\n * equivalent.\n *\n * **Note:** This method supports comparing arrays, array buffers, booleans,\n * date objects, error objects, maps, numbers, `Object` objects, regexes,\n * sets, strings, symbols, and typed arrays. `Object` objects are compared\n * by their own, not inherited, enumerable properties. Functions and DOM\n * nodes are compared by strict equality, i.e. `===`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.isEqual(object, other);\n * // => true\n *\n * object === other;\n * // => false\n */\n function isEqual(value, other) {\n return baseIsEqual(value, other);\n }\n\n /**\n * This method is like `_.isEqual` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with up to\n * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, othValue) {\n * if (isGreeting(objValue) && isGreeting(othValue)) {\n * return true;\n * }\n * }\n *\n * var array = ['hello', 'goodbye'];\n * var other = ['hi', 'goodbye'];\n *\n * _.isEqualWith(array, other, customizer);\n * // => true\n */\n function isEqualWith(value, other, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n var result = customizer ? customizer(value, other) : undefined;\n return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n }\n\n /**\n * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,\n * `SyntaxError`, `TypeError`, or `URIError` object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an error object, else `false`.\n * @example\n *\n * _.isError(new Error);\n * // => true\n *\n * _.isError(Error);\n * // => false\n */\n function isError(value) {\n if (!isObjectLike(value)) {\n return false;\n }\n var tag = baseGetTag(value);\n return tag == errorTag || tag == domExcTag ||\n (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));\n }\n\n /**\n * Checks if `value` is a finite primitive number.\n *\n * **Note:** This method is based on\n * [`Number.isFinite`](https://mdn.io/Number/isFinite).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.\n * @example\n *\n * _.isFinite(3);\n * // => true\n *\n * _.isFinite(Number.MIN_VALUE);\n * // => true\n *\n * _.isFinite(Infinity);\n * // => false\n *\n * _.isFinite('3');\n * // => false\n */\n function isFinite(value) {\n return typeof value == 'number' && nativeIsFinite(value);\n }\n\n /**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\n function isFunction(value) {\n if (!isObject(value)) {\n return false;\n }\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 9 which returns 'object' for typed arrays and other constructors.\n var tag = baseGetTag(value);\n return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n }\n\n /**\n * Checks if `value` is an integer.\n *\n * **Note:** This method is based on\n * [`Number.isInteger`](https://mdn.io/Number/isInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an integer, else `false`.\n * @example\n *\n * _.isInteger(3);\n * // => true\n *\n * _.isInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isInteger(Infinity);\n * // => false\n *\n * _.isInteger('3');\n * // => false\n */\n function isInteger(value) {\n return typeof value == 'number' && value == toInteger(value);\n }\n\n /**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\n function isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\n function isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n }\n\n /**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\n function isObjectLike(value) {\n return value != null && typeof value == 'object';\n }\n\n /**\n * Checks if `value` is classified as a `Map` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n * @example\n *\n * _.isMap(new Map);\n * // => true\n *\n * _.isMap(new WeakMap);\n * // => false\n */\n var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\n /**\n * Performs a partial deep comparison between `object` and `source` to\n * determine if `object` contains equivalent property values.\n *\n * **Note:** This method is equivalent to `_.matches` when `source` is\n * partially applied.\n *\n * Partial comparisons will match empty array and empty object `source`\n * values against any array or object value, respectively. See `_.isEqual`\n * for a list of supported value comparisons.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.isMatch(object, { 'b': 2 });\n * // => true\n *\n * _.isMatch(object, { 'b': 1 });\n * // => false\n */\n function isMatch(object, source) {\n return object === source || baseIsMatch(object, source, getMatchData(source));\n }\n\n /**\n * This method is like `_.isMatch` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with five\n * arguments: (objValue, srcValue, index|key, object, source).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, srcValue) {\n * if (isGreeting(objValue) && isGreeting(srcValue)) {\n * return true;\n * }\n * }\n *\n * var object = { 'greeting': 'hello' };\n * var source = { 'greeting': 'hi' };\n *\n * _.isMatchWith(object, source, customizer);\n * // => true\n */\n function isMatchWith(object, source, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseIsMatch(object, source, getMatchData(source), customizer);\n }\n\n /**\n * Checks if `value` is `NaN`.\n *\n * **Note:** This method is based on\n * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as\n * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for\n * `undefined` and other non-number values.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n * @example\n *\n * _.isNaN(NaN);\n * // => true\n *\n * _.isNaN(new Number(NaN));\n * // => true\n *\n * isNaN(undefined);\n * // => true\n *\n * _.isNaN(undefined);\n * // => false\n */\n function isNaN(value) {\n // An `NaN` primitive is the only value that is not equal to itself.\n // Perform the `toStringTag` check first to avoid errors with some\n // ActiveX objects in IE.\n return isNumber(value) && value != +value;\n }\n\n /**\n * Checks if `value` is a pristine native function.\n *\n * **Note:** This method can't reliably detect native functions in the presence\n * of the core-js package because core-js circumvents this kind of detection.\n * Despite multiple requests, the core-js maintainer has made it clear: any\n * attempt to fix the detection will be obstructed. As a result, we're left\n * with little choice but to throw an error. Unfortunately, this also affects\n * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),\n * which rely on core-js.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n * @example\n *\n * _.isNative(Array.prototype.push);\n * // => true\n *\n * _.isNative(_);\n * // => false\n */\n function isNative(value) {\n if (isMaskable(value)) {\n throw new Error(CORE_ERROR_TEXT);\n }\n return baseIsNative(value);\n }\n\n /**\n * Checks if `value` is `null`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `null`, else `false`.\n * @example\n *\n * _.isNull(null);\n * // => true\n *\n * _.isNull(void 0);\n * // => false\n */\n function isNull(value) {\n return value === null;\n }\n\n /**\n * Checks if `value` is `null` or `undefined`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is nullish, else `false`.\n * @example\n *\n * _.isNil(null);\n * // => true\n *\n * _.isNil(void 0);\n * // => true\n *\n * _.isNil(NaN);\n * // => false\n */\n function isNil(value) {\n return value == null;\n }\n\n /**\n * Checks if `value` is classified as a `Number` primitive or object.\n *\n * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n * classified as numbers, use the `_.isFinite` method.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n * @example\n *\n * _.isNumber(3);\n * // => true\n *\n * _.isNumber(Number.MIN_VALUE);\n * // => true\n *\n * _.isNumber(Infinity);\n * // => true\n *\n * _.isNumber('3');\n * // => false\n */\n function isNumber(value) {\n return typeof value == 'number' ||\n (isObjectLike(value) && baseGetTag(value) == numberTag);\n }\n\n /**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\n function isPlainObject(value) {\n if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n return false;\n }\n var proto = getPrototype(value);\n if (proto === null) {\n return true;\n }\n var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n funcToString.call(Ctor) == objectCtorString;\n }\n\n /**\n * Checks if `value` is classified as a `RegExp` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n * @example\n *\n * _.isRegExp(/abc/);\n * // => true\n *\n * _.isRegExp('/abc/');\n * // => false\n */\n var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;\n\n /**\n * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754\n * double precision number which isn't the result of a rounded unsafe integer.\n *\n * **Note:** This method is based on\n * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.\n * @example\n *\n * _.isSafeInteger(3);\n * // => true\n *\n * _.isSafeInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isSafeInteger(Infinity);\n * // => false\n *\n * _.isSafeInteger('3');\n * // => false\n */\n function isSafeInteger(value) {\n return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is classified as a `Set` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n * @example\n *\n * _.isSet(new Set);\n * // => true\n *\n * _.isSet(new WeakSet);\n * // => false\n */\n var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\n /**\n * Checks if `value` is classified as a `String` primitive or object.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n * @example\n *\n * _.isString('abc');\n * // => true\n *\n * _.isString(1);\n * // => false\n */\n function isString(value) {\n return typeof value == 'string' ||\n (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n }\n\n /**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\n function isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && baseGetTag(value) == symbolTag);\n }\n\n /**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\n var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n /**\n * Checks if `value` is `undefined`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n * @example\n *\n * _.isUndefined(void 0);\n * // => true\n *\n * _.isUndefined(null);\n * // => false\n */\n function isUndefined(value) {\n return value === undefined;\n }\n\n /**\n * Checks if `value` is classified as a `WeakMap` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.\n * @example\n *\n * _.isWeakMap(new WeakMap);\n * // => true\n *\n * _.isWeakMap(new Map);\n * // => false\n */\n function isWeakMap(value) {\n return isObjectLike(value) && getTag(value) == weakMapTag;\n }\n\n /**\n * Checks if `value` is classified as a `WeakSet` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.\n * @example\n *\n * _.isWeakSet(new WeakSet);\n * // => true\n *\n * _.isWeakSet(new Set);\n * // => false\n */\n function isWeakSet(value) {\n return isObjectLike(value) && baseGetTag(value) == weakSetTag;\n }\n\n /**\n * Checks if `value` is less than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n * @see _.gt\n * @example\n *\n * _.lt(1, 3);\n * // => true\n *\n * _.lt(3, 3);\n * // => false\n *\n * _.lt(3, 1);\n * // => false\n */\n var lt = createRelationalOperation(baseLt);\n\n /**\n * Checks if `value` is less than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than or equal to\n * `other`, else `false`.\n * @see _.gte\n * @example\n *\n * _.lte(1, 3);\n * // => true\n *\n * _.lte(3, 3);\n * // => true\n *\n * _.lte(3, 1);\n * // => false\n */\n var lte = createRelationalOperation(function(value, other) {\n return value <= other;\n });\n\n /**\n * Converts `value` to an array.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Array} Returns the converted array.\n * @example\n *\n * _.toArray({ 'a': 1, 'b': 2 });\n * // => [1, 2]\n *\n * _.toArray('abc');\n * // => ['a', 'b', 'c']\n *\n * _.toArray(1);\n * // => []\n *\n * _.toArray(null);\n * // => []\n */\n function toArray(value) {\n if (!value) {\n return [];\n }\n if (isArrayLike(value)) {\n return isString(value) ? stringToArray(value) : copyArray(value);\n }\n if (symIterator && value[symIterator]) {\n return iteratorToArray(value[symIterator]());\n }\n var tag = getTag(value),\n func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);\n\n return func(value);\n }\n\n /**\n * Converts `value` to a finite number.\n *\n * @static\n * @memberOf _\n * @since 4.12.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted number.\n * @example\n *\n * _.toFinite(3.2);\n * // => 3.2\n *\n * _.toFinite(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toFinite(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toFinite('3.2');\n * // => 3.2\n */\n function toFinite(value) {\n if (!value) {\n return value === 0 ? value : 0;\n }\n value = toNumber(value);\n if (value === INFINITY || value === -INFINITY) {\n var sign = (value < 0 ? -1 : 1);\n return sign * MAX_INTEGER;\n }\n return value === value ? value : 0;\n }\n\n /**\n * Converts `value` to an integer.\n *\n * **Note:** This method is loosely based on\n * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toInteger(3.2);\n * // => 3\n *\n * _.toInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toInteger(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toInteger('3.2');\n * // => 3\n */\n function toInteger(value) {\n var result = toFinite(value),\n remainder = result % 1;\n\n return result === result ? (remainder ? result - remainder : result) : 0;\n }\n\n /**\n * Converts `value` to an integer suitable for use as the length of an\n * array-like object.\n *\n * **Note:** This method is based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toLength(3.2);\n * // => 3\n *\n * _.toLength(Number.MIN_VALUE);\n * // => 0\n *\n * _.toLength(Infinity);\n * // => 4294967295\n *\n * _.toLength('3.2');\n * // => 3\n */\n function toLength(value) {\n return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;\n }\n\n /**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\n function toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? (other + '') : other;\n }\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n value = baseTrim(value);\n var isBinary = reIsBinary.test(value);\n return (isBinary || reIsOctal.test(value))\n ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n : (reIsBadHex.test(value) ? NAN : +value);\n }\n\n /**\n * Converts `value` to a plain object flattening inherited enumerable string\n * keyed properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\n function toPlainObject(value) {\n return copyObject(value, keysIn(value));\n }\n\n /**\n * Converts `value` to a safe integer. A safe integer can be compared and\n * represented correctly.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toSafeInteger(3.2);\n * // => 3\n *\n * _.toSafeInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toSafeInteger(Infinity);\n * // => 9007199254740991\n *\n * _.toSafeInteger('3.2');\n * // => 3\n */\n function toSafeInteger(value) {\n return value\n ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)\n : (value === 0 ? value : 0);\n }\n\n /**\n * Converts `value` to a string. An empty string is returned for `null`\n * and `undefined` values. The sign of `-0` is preserved.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.toString(null);\n * // => ''\n *\n * _.toString(-0);\n * // => '-0'\n *\n * _.toString([1, 2, 3]);\n * // => '1,2,3'\n */\n function toString(value) {\n return value == null ? '' : baseToString(value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Assigns own enumerable string keyed properties of source objects to the\n * destination object. Source objects are applied from left to right.\n * Subsequent sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object` and is loosely based on\n * [`Object.assign`](https://mdn.io/Object/assign).\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assignIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assign({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'c': 3 }\n */\n var assign = createAssigner(function(object, source) {\n if (isPrototype(source) || isArrayLike(source)) {\n copyObject(source, keys(source), object);\n return;\n }\n for (var key in source) {\n if (hasOwnProperty.call(source, key)) {\n assignValue(object, key, source[key]);\n }\n }\n });\n\n /**\n * This method is like `_.assign` except that it iterates over own and\n * inherited source properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extend\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assign\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n */\n var assignIn = createAssigner(function(object, source) {\n copyObject(source, keysIn(source), object);\n });\n\n /**\n * This method is like `_.assignIn` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extendWith\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignInWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keysIn(source), object, customizer);\n });\n\n /**\n * This method is like `_.assign` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignInWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keys(source), object, customizer);\n });\n\n /**\n * Creates an array of values corresponding to `paths` of `object`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Array} Returns the picked values.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _.at(object, ['a[0].b.c', 'a[1]']);\n * // => [3, 4]\n */\n var at = flatRest(baseAt);\n\n /**\n * Creates an object that inherits from the `prototype` object. If a\n * `properties` object is given, its own enumerable string keyed properties\n * are assigned to the created object.\n *\n * @static\n * @memberOf _\n * @since 2.3.0\n * @category Object\n * @param {Object} prototype The object to inherit from.\n * @param {Object} [properties] The properties to assign to the object.\n * @returns {Object} Returns the new object.\n * @example\n *\n * function Shape() {\n * this.x = 0;\n * this.y = 0;\n * }\n *\n * function Circle() {\n * Shape.call(this);\n * }\n *\n * Circle.prototype = _.create(Shape.prototype, {\n * 'constructor': Circle\n * });\n *\n * var circle = new Circle;\n * circle instanceof Circle;\n * // => true\n *\n * circle instanceof Shape;\n * // => true\n */\n function create(prototype, properties) {\n var result = baseCreate(prototype);\n return properties == null ? result : baseAssign(result, properties);\n }\n\n /**\n * Assigns own and inherited enumerable string keyed properties of source\n * objects to the destination object for all destination properties that\n * resolve to `undefined`. Source objects are applied from left to right.\n * Once a property is set, additional values of the same property are ignored.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaultsDeep\n * @example\n *\n * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var defaults = baseRest(function(object, sources) {\n object = Object(object);\n\n var index = -1;\n var length = sources.length;\n var guard = length > 2 ? sources[2] : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n length = 1;\n }\n\n while (++index < length) {\n var source = sources[index];\n var props = keysIn(source);\n var propsIndex = -1;\n var propsLength = props.length;\n\n while (++propsIndex < propsLength) {\n var key = props[propsIndex];\n var value = object[key];\n\n if (value === undefined ||\n (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n object[key] = source[key];\n }\n }\n }\n\n return object;\n });\n\n /**\n * This method is like `_.defaults` except that it recursively assigns\n * default properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaults\n * @example\n *\n * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });\n * // => { 'a': { 'b': 2, 'c': 3 } }\n */\n var defaultsDeep = baseRest(function(args) {\n args.push(undefined, customDefaultsMerge);\n return apply(mergeWith, undefined, args);\n });\n\n /**\n * This method is like `_.find` except that it returns the key of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findKey(users, function(o) { return o.age < 40; });\n * // => 'barney' (iteration order is not guaranteed)\n *\n * // The `_.matches` iteratee shorthand.\n * _.findKey(users, { 'age': 1, 'active': true });\n * // => 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findKey(users, 'active');\n * // => 'barney'\n */\n function findKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);\n }\n\n /**\n * This method is like `_.findKey` except that it iterates over elements of\n * a collection in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findLastKey(users, function(o) { return o.age < 40; });\n * // => returns 'pebbles' assuming `_.findKey` returns 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastKey(users, { 'age': 36, 'active': true });\n * // => 'barney'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastKey(users, 'active');\n * // => 'pebbles'\n */\n function findLastKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);\n }\n\n /**\n * Iterates over own and inherited enumerable string keyed properties of an\n * object and invokes `iteratee` for each property. The iteratee is invoked\n * with three arguments: (value, key, object). Iteratee functions may exit\n * iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forInRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forIn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).\n */\n function forIn(object, iteratee) {\n return object == null\n ? object\n : baseFor(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * This method is like `_.forIn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forInRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.\n */\n function forInRight(object, iteratee) {\n return object == null\n ? object\n : baseForRight(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * Iterates over own enumerable string keyed properties of an object and\n * invokes `iteratee` for each property. The iteratee is invoked with three\n * arguments: (value, key, object). Iteratee functions may exit iteration\n * early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwnRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forOwn(object, iteratee) {\n return object && baseForOwn(object, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forOwn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwnRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.\n */\n function forOwnRight(object, iteratee) {\n return object && baseForOwnRight(object, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an array of function property names from own enumerable properties\n * of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functionsIn\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functions(new Foo);\n * // => ['a', 'b']\n */\n function functions(object) {\n return object == null ? [] : baseFunctions(object, keys(object));\n }\n\n /**\n * Creates an array of function property names from own and inherited\n * enumerable properties of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functions\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functionsIn(new Foo);\n * // => ['a', 'b', 'c']\n */\n function functionsIn(object) {\n return object == null ? [] : baseFunctions(object, keysIn(object));\n }\n\n /**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\n function get(object, path, defaultValue) {\n var result = object == null ? undefined : baseGet(object, path);\n return result === undefined ? defaultValue : result;\n }\n\n /**\n * Checks if `path` is a direct property of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = { 'a': { 'b': 2 } };\n * var other = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.has(object, 'a');\n * // => true\n *\n * _.has(object, 'a.b');\n * // => true\n *\n * _.has(object, ['a', 'b']);\n * // => true\n *\n * _.has(other, 'a');\n * // => false\n */\n function has(object, path) {\n return object != null && hasPath(object, path, baseHas);\n }\n\n /**\n * Checks if `path` is a direct or inherited property of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.hasIn(object, 'a');\n * // => true\n *\n * _.hasIn(object, 'a.b');\n * // => true\n *\n * _.hasIn(object, ['a', 'b']);\n * // => true\n *\n * _.hasIn(object, 'b');\n * // => false\n */\n function hasIn(object, path) {\n return object != null && hasPath(object, path, baseHasIn);\n }\n\n /**\n * Creates an object composed of the inverted keys and values of `object`.\n * If `object` contains duplicate values, subsequent values overwrite\n * property assignments of previous values.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Object\n * @param {Object} object The object to invert.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invert(object);\n * // => { '1': 'c', '2': 'b' }\n */\n var invert = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n result[value] = key;\n }, constant(identity));\n\n /**\n * This method is like `_.invert` except that the inverted object is generated\n * from the results of running each element of `object` thru `iteratee`. The\n * corresponding inverted value of each inverted key is an array of keys\n * responsible for generating the inverted value. The iteratee is invoked\n * with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Object\n * @param {Object} object The object to invert.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invertBy(object);\n * // => { '1': ['a', 'c'], '2': ['b'] }\n *\n * _.invertBy(object, function(value) {\n * return 'group' + value;\n * });\n * // => { 'group1': ['a', 'c'], 'group2': ['b'] }\n */\n var invertBy = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n if (hasOwnProperty.call(result, value)) {\n result[value].push(key);\n } else {\n result[value] = [key];\n }\n }, getIteratee);\n\n /**\n * Invokes the method at `path` of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {...*} [args] The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };\n *\n * _.invoke(object, 'a[0].b.c.slice', 1, 3);\n * // => [2, 3]\n */\n var invoke = baseRest(baseInvoke);\n\n /**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\n function keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n }\n\n /**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\n function keysIn(object) {\n return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n }\n\n /**\n * The opposite of `_.mapValues`; this method creates an object with the\n * same values as `object` and keys generated by running each own enumerable\n * string keyed property of `object` thru `iteratee`. The iteratee is invoked\n * with three arguments: (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapValues\n * @example\n *\n * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {\n * return key + value;\n * });\n * // => { 'a1': 1, 'b2': 2 }\n */\n function mapKeys(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, iteratee(value, key, object), value);\n });\n return result;\n }\n\n /**\n * Creates an object with the same keys as `object` and values generated\n * by running each own enumerable string keyed property of `object` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapKeys\n * @example\n *\n * var users = {\n * 'fred': { 'user': 'fred', 'age': 40 },\n * 'pebbles': { 'user': 'pebbles', 'age': 1 }\n * };\n *\n * _.mapValues(users, function(o) { return o.age; });\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n *\n * // The `_.property` iteratee shorthand.\n * _.mapValues(users, 'age');\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n */\n function mapValues(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, key, iteratee(value, key, object));\n });\n return result;\n }\n\n /**\n * This method is like `_.assign` except that it recursively merges own and\n * inherited enumerable string keyed properties of source objects into the\n * destination object. Source properties that resolve to `undefined` are\n * skipped if a destination value exists. Array and plain object properties\n * are merged recursively. Other objects and value types are overridden by\n * assignment. Source objects are applied from left to right. Subsequent\n * sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {\n * 'a': [{ 'b': 2 }, { 'd': 4 }]\n * };\n *\n * var other = {\n * 'a': [{ 'c': 3 }, { 'e': 5 }]\n * };\n *\n * _.merge(object, other);\n * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n */\n var merge = createAssigner(function(object, source, srcIndex) {\n baseMerge(object, source, srcIndex);\n });\n\n /**\n * This method is like `_.merge` except that it accepts `customizer` which\n * is invoked to produce the merged values of the destination and source\n * properties. If `customizer` returns `undefined`, merging is handled by the\n * method instead. The `customizer` is invoked with six arguments:\n * (objValue, srcValue, key, object, source, stack).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} customizer The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * function customizer(objValue, srcValue) {\n * if (_.isArray(objValue)) {\n * return objValue.concat(srcValue);\n * }\n * }\n *\n * var object = { 'a': [1], 'b': [2] };\n * var other = { 'a': [3], 'b': [4] };\n *\n * _.mergeWith(object, other, customizer);\n * // => { 'a': [1, 3], 'b': [2, 4] }\n */\n var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {\n baseMerge(object, source, srcIndex, customizer);\n });\n\n /**\n * The opposite of `_.pick`; this method creates an object composed of the\n * own and inherited enumerable property paths of `object` that are not omitted.\n *\n * **Note:** This method is considerably slower than `_.pick`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to omit.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omit(object, ['a', 'c']);\n * // => { 'b': '2' }\n */\n var omit = flatRest(function(object, paths) {\n var result = {};\n if (object == null) {\n return result;\n }\n var isDeep = false;\n paths = arrayMap(paths, function(path) {\n path = castPath(path, object);\n isDeep || (isDeep = path.length > 1);\n return path;\n });\n copyObject(object, getAllKeysIn(object), result);\n if (isDeep) {\n result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);\n }\n var length = paths.length;\n while (length--) {\n baseUnset(result, paths[length]);\n }\n return result;\n });\n\n /**\n * The opposite of `_.pickBy`; this method creates an object composed of\n * the own and inherited enumerable string keyed properties of `object` that\n * `predicate` doesn't return truthy for. The predicate is invoked with two\n * arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omitBy(object, _.isNumber);\n * // => { 'b': '2' }\n */\n function omitBy(object, predicate) {\n return pickBy(object, negate(getIteratee(predicate)));\n }\n\n /**\n * Creates an object composed of the picked `object` properties.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pick(object, ['a', 'c']);\n * // => { 'a': 1, 'c': 3 }\n */\n var pick = flatRest(function(object, paths) {\n return object == null ? {} : basePick(object, paths);\n });\n\n /**\n * Creates an object composed of the `object` properties `predicate` returns\n * truthy for. The predicate is invoked with two arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pickBy(object, _.isNumber);\n * // => { 'a': 1, 'c': 3 }\n */\n function pickBy(object, predicate) {\n if (object == null) {\n return {};\n }\n var props = arrayMap(getAllKeysIn(object), function(prop) {\n return [prop];\n });\n predicate = getIteratee(predicate);\n return basePickBy(object, props, function(value, path) {\n return predicate(value, path[0]);\n });\n }\n\n /**\n * This method is like `_.get` except that if the resolved value is a\n * function it's invoked with the `this` binding of its parent object and\n * its result is returned.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to resolve.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };\n *\n * _.result(object, 'a[0].b.c1');\n * // => 3\n *\n * _.result(object, 'a[0].b.c2');\n * // => 4\n *\n * _.result(object, 'a[0].b.c3', 'default');\n * // => 'default'\n *\n * _.result(object, 'a[0].b.c3', _.constant('default'));\n * // => 'default'\n */\n function result(object, path, defaultValue) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length;\n\n // Ensure the loop is entered when path is empty.\n if (!length) {\n length = 1;\n object = undefined;\n }\n while (++index < length) {\n var value = object == null ? undefined : object[toKey(path[index])];\n if (value === undefined) {\n index = length;\n value = defaultValue;\n }\n object = isFunction(value) ? value.call(object) : value;\n }\n return object;\n }\n\n /**\n * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n * it's created. Arrays are created for missing index properties while objects\n * are created for all other missing properties. Use `_.setWith` to customize\n * `path` creation.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.set(object, 'a[0].b.c', 4);\n * console.log(object.a[0].b.c);\n * // => 4\n *\n * _.set(object, ['x', '0', 'y', 'z'], 5);\n * console.log(object.x[0].y.z);\n * // => 5\n */\n function set(object, path, value) {\n return object == null ? object : baseSet(object, path, value);\n }\n\n /**\n * This method is like `_.set` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.setWith(object, '[0][1]', 'a', Object);\n * // => { '0': { '1': 'a' } }\n */\n function setWith(object, path, value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseSet(object, path, value, customizer);\n }\n\n /**\n * Creates an array of own enumerable string keyed-value pairs for `object`\n * which can be consumed by `_.fromPairs`. If `object` is a map or set, its\n * entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entries\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairs(new Foo);\n * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)\n */\n var toPairs = createToPairs(keys);\n\n /**\n * Creates an array of own and inherited enumerable string keyed-value pairs\n * for `object` which can be consumed by `_.fromPairs`. If `object` is a map\n * or set, its entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entriesIn\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairsIn(new Foo);\n * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)\n */\n var toPairsIn = createToPairs(keysIn);\n\n /**\n * An alternative to `_.reduce`; this method transforms `object` to a new\n * `accumulator` object which is the result of running each of its own\n * enumerable string keyed properties thru `iteratee`, with each invocation\n * potentially mutating the `accumulator` object. If `accumulator` is not\n * provided, a new object with the same `[[Prototype]]` will be used. The\n * iteratee is invoked with four arguments: (accumulator, value, key, object).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The custom accumulator value.\n * @returns {*} Returns the accumulated value.\n * @example\n *\n * _.transform([2, 3, 4], function(result, n) {\n * result.push(n *= n);\n * return n % 2 == 0;\n * }, []);\n * // => [4, 9]\n *\n * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] }\n */\n function transform(object, iteratee, accumulator) {\n var isArr = isArray(object),\n isArrLike = isArr || isBuffer(object) || isTypedArray(object);\n\n iteratee = getIteratee(iteratee, 4);\n if (accumulator == null) {\n var Ctor = object && object.constructor;\n if (isArrLike) {\n accumulator = isArr ? new Ctor : [];\n }\n else if (isObject(object)) {\n accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};\n }\n else {\n accumulator = {};\n }\n }\n (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {\n return iteratee(accumulator, value, index, object);\n });\n return accumulator;\n }\n\n /**\n * Removes the property at `path` of `object`.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n * _.unset(object, 'a[0].b.c');\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n *\n * _.unset(object, ['a', '0', 'b', 'c']);\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n */\n function unset(object, path) {\n return object == null ? true : baseUnset(object, path);\n }\n\n /**\n * This method is like `_.set` except that accepts `updater` to produce the\n * value to set. Use `_.updateWith` to customize `path` creation. The `updater`\n * is invoked with one argument: (value).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.update(object, 'a[0].b.c', function(n) { return n * n; });\n * console.log(object.a[0].b.c);\n * // => 9\n *\n * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });\n * console.log(object.x[0].y.z);\n * // => 0\n */\n function update(object, path, updater) {\n return object == null ? object : baseUpdate(object, path, castFunction(updater));\n }\n\n /**\n * This method is like `_.update` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.updateWith(object, '[0][1]', _.constant('a'), Object);\n * // => { '0': { '1': 'a' } }\n */\n function updateWith(object, path, updater, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);\n }\n\n /**\n * Creates an array of the own enumerable string keyed property values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.values(new Foo);\n * // => [1, 2] (iteration order is not guaranteed)\n *\n * _.values('hi');\n * // => ['h', 'i']\n */\n function values(object) {\n return object == null ? [] : baseValues(object, keys(object));\n }\n\n /**\n * Creates an array of the own and inherited enumerable string keyed property\n * values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.valuesIn(new Foo);\n * // => [1, 2, 3] (iteration order is not guaranteed)\n */\n function valuesIn(object) {\n return object == null ? [] : baseValues(object, keysIn(object));\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Clamps `number` within the inclusive `lower` and `upper` bounds.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Number\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n * @example\n *\n * _.clamp(-10, -5, 5);\n * // => -5\n *\n * _.clamp(10, -5, 5);\n * // => 5\n */\n function clamp(number, lower, upper) {\n if (upper === undefined) {\n upper = lower;\n lower = undefined;\n }\n if (upper !== undefined) {\n upper = toNumber(upper);\n upper = upper === upper ? upper : 0;\n }\n if (lower !== undefined) {\n lower = toNumber(lower);\n lower = lower === lower ? lower : 0;\n }\n return baseClamp(toNumber(number), lower, upper);\n }\n\n /**\n * Checks if `n` is between `start` and up to, but not including, `end`. If\n * `end` is not specified, it's set to `start` with `start` then set to `0`.\n * If `start` is greater than `end` the params are swapped to support\n * negative ranges.\n *\n * @static\n * @memberOf _\n * @since 3.3.0\n * @category Number\n * @param {number} number The number to check.\n * @param {number} [start=0] The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n * @see _.range, _.rangeRight\n * @example\n *\n * _.inRange(3, 2, 4);\n * // => true\n *\n * _.inRange(4, 8);\n * // => true\n *\n * _.inRange(4, 2);\n * // => false\n *\n * _.inRange(2, 2);\n * // => false\n *\n * _.inRange(1.2, 2);\n * // => true\n *\n * _.inRange(5.2, 4);\n * // => false\n *\n * _.inRange(-3, -2, -6);\n * // => true\n */\n function inRange(number, start, end) {\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n number = toNumber(number);\n return baseInRange(number, start, end);\n }\n\n /**\n * Produces a random number between the inclusive `lower` and `upper` bounds.\n * If only one argument is provided a number between `0` and the given number\n * is returned. If `floating` is `true`, or either `lower` or `upper` are\n * floats, a floating-point number is returned instead of an integer.\n *\n * **Note:** JavaScript follows the IEEE-754 standard for resolving\n * floating-point values which can produce unexpected results.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Number\n * @param {number} [lower=0] The lower bound.\n * @param {number} [upper=1] The upper bound.\n * @param {boolean} [floating] Specify returning a floating-point number.\n * @returns {number} Returns the random number.\n * @example\n *\n * _.random(0, 5);\n * // => an integer between 0 and 5\n *\n * _.random(5);\n * // => also an integer between 0 and 5\n *\n * _.random(5, true);\n * // => a floating-point number between 0 and 5\n *\n * _.random(1.2, 5.2);\n * // => a floating-point number between 1.2 and 5.2\n */\n function random(lower, upper, floating) {\n if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {\n upper = floating = undefined;\n }\n if (floating === undefined) {\n if (typeof upper == 'boolean') {\n floating = upper;\n upper = undefined;\n }\n else if (typeof lower == 'boolean') {\n floating = lower;\n lower = undefined;\n }\n }\n if (lower === undefined && upper === undefined) {\n lower = 0;\n upper = 1;\n }\n else {\n lower = toFinite(lower);\n if (upper === undefined) {\n upper = lower;\n lower = 0;\n } else {\n upper = toFinite(upper);\n }\n }\n if (lower > upper) {\n var temp = lower;\n lower = upper;\n upper = temp;\n }\n if (floating || lower % 1 || upper % 1) {\n var rand = nativeRandom();\n return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);\n }\n return baseRandom(lower, upper);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the camel cased string.\n * @example\n *\n * _.camelCase('Foo Bar');\n * // => 'fooBar'\n *\n * _.camelCase('--foo-bar--');\n * // => 'fooBar'\n *\n * _.camelCase('__FOO_BAR__');\n * // => 'fooBar'\n */\n var camelCase = createCompounder(function(result, word, index) {\n word = word.toLowerCase();\n return result + (index ? capitalize(word) : word);\n });\n\n /**\n * Converts the first character of `string` to upper case and the remaining\n * to lower case.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to capitalize.\n * @returns {string} Returns the capitalized string.\n * @example\n *\n * _.capitalize('FRED');\n * // => 'Fred'\n */\n function capitalize(string) {\n return upperFirst(toString(string).toLowerCase());\n }\n\n /**\n * Deburrs `string` by converting\n * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)\n * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)\n * letters to basic Latin letters and removing\n * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to deburr.\n * @returns {string} Returns the deburred string.\n * @example\n *\n * _.deburr('déjà vu');\n * // => 'deja vu'\n */\n function deburr(string) {\n string = toString(string);\n return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');\n }\n\n /**\n * Checks if `string` ends with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=string.length] The position to search up to.\n * @returns {boolean} Returns `true` if `string` ends with `target`,\n * else `false`.\n * @example\n *\n * _.endsWith('abc', 'c');\n * // => true\n *\n * _.endsWith('abc', 'b');\n * // => false\n *\n * _.endsWith('abc', 'b', 2);\n * // => true\n */\n function endsWith(string, target, position) {\n string = toString(string);\n target = baseToString(target);\n\n var length = string.length;\n position = position === undefined\n ? length\n : baseClamp(toInteger(position), 0, length);\n\n var end = position;\n position -= target.length;\n return position >= 0 && string.slice(position, end) == target;\n }\n\n /**\n * Converts the characters \"&\", \"<\", \">\", '\"', and \"'\" in `string` to their\n * corresponding HTML entities.\n *\n * **Note:** No other characters are escaped. To escape additional\n * characters use a third-party library like [_he_](https://mths.be/he).\n *\n * Though the \">\" character is escaped for symmetry, characters like\n * \">\" and \"/\" don't need escaping in HTML and have no special meaning\n * unless they're part of a tag or unquoted attribute value. See\n * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)\n * (under \"semi-related fun fact\") for more details.\n *\n * When working with HTML you should always\n * [quote attribute values](http://wonko.com/post/html-escaping) to reduce\n * XSS vectors.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escape('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles'\n */\n function escape(string) {\n string = toString(string);\n return (string && reHasUnescapedHtml.test(string))\n ? string.replace(reUnescapedHtml, escapeHtmlChar)\n : string;\n }\n\n /**\n * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escapeRegExp('[lodash](https://lodash.com/)');\n * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n */\n function escapeRegExp(string) {\n string = toString(string);\n return (string && reHasRegExpChar.test(string))\n ? string.replace(reRegExpChar, '\\\\$&')\n : string;\n }\n\n /**\n * Converts `string` to\n * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the kebab cased string.\n * @example\n *\n * _.kebabCase('Foo Bar');\n * // => 'foo-bar'\n *\n * _.kebabCase('fooBar');\n * // => 'foo-bar'\n *\n * _.kebabCase('__FOO_BAR__');\n * // => 'foo-bar'\n */\n var kebabCase = createCompounder(function(result, word, index) {\n return result + (index ? '-' : '') + word.toLowerCase();\n });\n\n /**\n * Converts `string`, as space separated words, to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the lower cased string.\n * @example\n *\n * _.lowerCase('--Foo-Bar--');\n * // => 'foo bar'\n *\n * _.lowerCase('fooBar');\n * // => 'foo bar'\n *\n * _.lowerCase('__FOO_BAR__');\n * // => 'foo bar'\n */\n var lowerCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + word.toLowerCase();\n });\n\n /**\n * Converts the first character of `string` to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.lowerFirst('Fred');\n * // => 'fred'\n *\n * _.lowerFirst('FRED');\n * // => 'fRED'\n */\n var lowerFirst = createCaseFirst('toLowerCase');\n\n /**\n * Pads `string` on the left and right sides if it's shorter than `length`.\n * Padding characters are truncated if they can't be evenly divided by `length`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.pad('abc', 8);\n * // => ' abc '\n *\n * _.pad('abc', 8, '_-');\n * // => '_-abc_-_'\n *\n * _.pad('abc', 3);\n * // => 'abc'\n */\n function pad(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n if (!length || strLength >= length) {\n return string;\n }\n var mid = (length - strLength) / 2;\n return (\n createPadding(nativeFloor(mid), chars) +\n string +\n createPadding(nativeCeil(mid), chars)\n );\n }\n\n /**\n * Pads `string` on the right side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padEnd('abc', 6);\n * // => 'abc '\n *\n * _.padEnd('abc', 6, '_-');\n * // => 'abc_-_'\n *\n * _.padEnd('abc', 3);\n * // => 'abc'\n */\n function padEnd(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (string + createPadding(length - strLength, chars))\n : string;\n }\n\n /**\n * Pads `string` on the left side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padStart('abc', 6);\n * // => ' abc'\n *\n * _.padStart('abc', 6, '_-');\n * // => '_-_abc'\n *\n * _.padStart('abc', 3);\n * // => 'abc'\n */\n function padStart(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (createPadding(length - strLength, chars) + string)\n : string;\n }\n\n /**\n * Converts `string` to an integer of the specified radix. If `radix` is\n * `undefined` or `0`, a `radix` of `10` is used unless `value` is a\n * hexadecimal, in which case a `radix` of `16` is used.\n *\n * **Note:** This method aligns with the\n * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category String\n * @param {string} string The string to convert.\n * @param {number} [radix=10] The radix to interpret `value` by.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.parseInt('08');\n * // => 8\n *\n * _.map(['6', '08', '10'], _.parseInt);\n * // => [6, 8, 10]\n */\n function parseInt(string, radix, guard) {\n if (guard || radix == null) {\n radix = 0;\n } else if (radix) {\n radix = +radix;\n }\n return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);\n }\n\n /**\n * Repeats the given string `n` times.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to repeat.\n * @param {number} [n=1] The number of times to repeat the string.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {string} Returns the repeated string.\n * @example\n *\n * _.repeat('*', 3);\n * // => '***'\n *\n * _.repeat('abc', 2);\n * // => 'abcabc'\n *\n * _.repeat('abc', 0);\n * // => ''\n */\n function repeat(string, n, guard) {\n if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n return baseRepeat(toString(string), n);\n }\n\n /**\n * Replaces matches for `pattern` in `string` with `replacement`.\n *\n * **Note:** This method is based on\n * [`String#replace`](https://mdn.io/String/replace).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to modify.\n * @param {RegExp|string} pattern The pattern to replace.\n * @param {Function|string} replacement The match replacement.\n * @returns {string} Returns the modified string.\n * @example\n *\n * _.replace('Hi Fred', 'Fred', 'Barney');\n * // => 'Hi Barney'\n */\n function replace() {\n var args = arguments,\n string = toString(args[0]);\n\n return args.length < 3 ? string : string.replace(args[1], args[2]);\n }\n\n /**\n * Converts `string` to\n * [snake case](https://en.wikipedia.org/wiki/Snake_case).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the snake cased string.\n * @example\n *\n * _.snakeCase('Foo Bar');\n * // => 'foo_bar'\n *\n * _.snakeCase('fooBar');\n * // => 'foo_bar'\n *\n * _.snakeCase('--FOO-BAR--');\n * // => 'foo_bar'\n */\n var snakeCase = createCompounder(function(result, word, index) {\n return result + (index ? '_' : '') + word.toLowerCase();\n });\n\n /**\n * Splits `string` by `separator`.\n *\n * **Note:** This method is based on\n * [`String#split`](https://mdn.io/String/split).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to split.\n * @param {RegExp|string} separator The separator pattern to split by.\n * @param {number} [limit] The length to truncate results to.\n * @returns {Array} Returns the string segments.\n * @example\n *\n * _.split('a-b-c', '-', 2);\n * // => ['a', 'b']\n */\n function split(string, separator, limit) {\n if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {\n separator = limit = undefined;\n }\n limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;\n if (!limit) {\n return [];\n }\n string = toString(string);\n if (string && (\n typeof separator == 'string' ||\n (separator != null && !isRegExp(separator))\n )) {\n separator = baseToString(separator);\n if (!separator && hasUnicode(string)) {\n return castSlice(stringToArray(string), 0, limit);\n }\n }\n return string.split(separator, limit);\n }\n\n /**\n * Converts `string` to\n * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).\n *\n * @static\n * @memberOf _\n * @since 3.1.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the start cased string.\n * @example\n *\n * _.startCase('--foo-bar--');\n * // => 'Foo Bar'\n *\n * _.startCase('fooBar');\n * // => 'Foo Bar'\n *\n * _.startCase('__FOO_BAR__');\n * // => 'FOO BAR'\n */\n var startCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + upperFirst(word);\n });\n\n /**\n * Checks if `string` starts with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=0] The position to search from.\n * @returns {boolean} Returns `true` if `string` starts with `target`,\n * else `false`.\n * @example\n *\n * _.startsWith('abc', 'a');\n * // => true\n *\n * _.startsWith('abc', 'b');\n * // => false\n *\n * _.startsWith('abc', 'b', 1);\n * // => true\n */\n function startsWith(string, target, position) {\n string = toString(string);\n position = position == null\n ? 0\n : baseClamp(toInteger(position), 0, string.length);\n\n target = baseToString(target);\n return string.slice(position, position + target.length) == target;\n }\n\n /**\n * Creates a compiled template function that can interpolate data properties\n * in \"interpolate\" delimiters, HTML-escape interpolated data properties in\n * \"escape\" delimiters, and execute JavaScript in \"evaluate\" delimiters. Data\n * properties may be accessed as free variables in the template. If a setting\n * object is given, it takes precedence over `_.templateSettings` values.\n *\n * **Note:** In the development build `_.template` utilizes\n * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)\n * for easier debugging.\n *\n * For more information on precompiling templates see\n * [lodash's custom builds documentation](https://lodash.com/custom-builds).\n *\n * For more information on Chrome extension sandboxes see\n * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The template string.\n * @param {Object} [options={}] The options object.\n * @param {RegExp} [options.escape=_.templateSettings.escape]\n * The HTML \"escape\" delimiter.\n * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]\n * The \"evaluate\" delimiter.\n * @param {Object} [options.imports=_.templateSettings.imports]\n * An object to import into the template as free variables.\n * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]\n * The \"interpolate\" delimiter.\n * @param {string} [options.sourceURL='lodash.templateSources[n]']\n * The sourceURL of the compiled template.\n * @param {string} [options.variable='obj']\n * The data object variable name.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the compiled template function.\n * @example\n *\n * // Use the \"interpolate\" delimiter to create a compiled template.\n * var compiled = _.template('hello <%= user %>!');\n * compiled({ 'user': 'fred' });\n * // => 'hello fred!'\n *\n * // Use the HTML \"escape\" delimiter to escape data property values.\n * var compiled = _.template('<%- value %>');\n * compiled({ 'value': '\n if (val === '') return true;\n if (val === 'false') return false;\n if (val === 'true') return true;\n return val;\n}\n\nif (DOCUMENT && typeof DOCUMENT.querySelector === 'function') {\n var attrs = [['data-family-prefix', 'familyPrefix'], ['data-style-default', 'styleDefault'], ['data-replacement-class', 'replacementClass'], ['data-auto-replace-svg', 'autoReplaceSvg'], ['data-auto-add-css', 'autoAddCss'], ['data-auto-a11y', 'autoA11y'], ['data-search-pseudo-elements', 'searchPseudoElements'], ['data-observe-mutations', 'observeMutations'], ['data-mutate-approach', 'mutateApproach'], ['data-keep-original-source', 'keepOriginalSource'], ['data-measure-performance', 'measurePerformance'], ['data-show-missing-icons', 'showMissingIcons']];\n attrs.forEach(function (_ref) {\n var _ref2 = _slicedToArray(_ref, 2),\n attr = _ref2[0],\n key = _ref2[1];\n\n var val = coerce(getAttrConfig(attr));\n\n if (val !== undefined && val !== null) {\n initial[key] = val;\n }\n });\n}\n\nvar _default = {\n familyPrefix: DEFAULT_FAMILY_PREFIX,\n styleDefault: 'solid',\n replacementClass: DEFAULT_REPLACEMENT_CLASS,\n autoReplaceSvg: true,\n autoAddCss: true,\n autoA11y: true,\n searchPseudoElements: false,\n observeMutations: true,\n mutateApproach: 'async',\n keepOriginalSource: true,\n measurePerformance: false,\n showMissingIcons: true\n};\n\nvar _config = _objectSpread2(_objectSpread2({}, _default), initial);\n\nif (!_config.autoReplaceSvg) _config.observeMutations = false;\nvar config = {};\nObject.keys(_config).forEach(function (key) {\n Object.defineProperty(config, key, {\n enumerable: true,\n set: function set(val) {\n _config[key] = val;\n\n _onChangeCb.forEach(function (cb) {\n return cb(config);\n });\n },\n get: function get() {\n return _config[key];\n }\n });\n});\nWINDOW.FontAwesomeConfig = config;\nvar _onChangeCb = [];\nfunction onChange(cb) {\n _onChangeCb.push(cb);\n\n return function () {\n _onChangeCb.splice(_onChangeCb.indexOf(cb), 1);\n };\n}\n\nvar d = UNITS_IN_GRID;\nvar meaninglessTransform = {\n size: 16,\n x: 0,\n y: 0,\n rotate: 0,\n flipX: false,\n flipY: false\n};\nfunction insertCss(css) {\n if (!css || !IS_DOM) {\n return;\n }\n\n var style = DOCUMENT.createElement('style');\n style.setAttribute('type', 'text/css');\n style.innerHTML = css;\n var headChildren = DOCUMENT.head.childNodes;\n var beforeChild = null;\n\n for (var i = headChildren.length - 1; i > -1; i--) {\n var child = headChildren[i];\n var tagName = (child.tagName || '').toUpperCase();\n\n if (['STYLE', 'LINK'].indexOf(tagName) > -1) {\n beforeChild = child;\n }\n }\n\n DOCUMENT.head.insertBefore(style, beforeChild);\n return css;\n}\nvar idPool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';\nfunction nextUniqueId() {\n var size = 12;\n var id = '';\n\n while (size-- > 0) {\n id += idPool[Math.random() * 62 | 0];\n }\n\n return id;\n}\nfunction toArray(obj) {\n var array = [];\n\n for (var i = (obj || []).length >>> 0; i--;) {\n array[i] = obj[i];\n }\n\n return array;\n}\nfunction classArray(node) {\n if (node.classList) {\n return toArray(node.classList);\n } else {\n return (node.getAttribute('class') || '').split(' ').filter(function (i) {\n return i;\n });\n }\n}\nfunction htmlEscape(str) {\n return \"\".concat(str).replace(/&/g, '&').replace(/\"/g, '"').replace(/'/g, ''').replace(//g, '>');\n}\nfunction joinAttributes(attributes) {\n return Object.keys(attributes || {}).reduce(function (acc, attributeName) {\n return acc + \"\".concat(attributeName, \"=\\\"\").concat(htmlEscape(attributes[attributeName]), \"\\\" \");\n }, '').trim();\n}\nfunction joinStyles(styles) {\n return Object.keys(styles || {}).reduce(function (acc, styleName) {\n return acc + \"\".concat(styleName, \": \").concat(styles[styleName].trim(), \";\");\n }, '');\n}\nfunction transformIsMeaningful(transform) {\n return transform.size !== meaninglessTransform.size || transform.x !== meaninglessTransform.x || transform.y !== meaninglessTransform.y || transform.rotate !== meaninglessTransform.rotate || transform.flipX || transform.flipY;\n}\nfunction transformForSvg(_ref) {\n var transform = _ref.transform,\n containerWidth = _ref.containerWidth,\n iconWidth = _ref.iconWidth;\n var outer = {\n transform: \"translate(\".concat(containerWidth / 2, \" 256)\")\n };\n var innerTranslate = \"translate(\".concat(transform.x * 32, \", \").concat(transform.y * 32, \") \");\n var innerScale = \"scale(\".concat(transform.size / 16 * (transform.flipX ? -1 : 1), \", \").concat(transform.size / 16 * (transform.flipY ? -1 : 1), \") \");\n var innerRotate = \"rotate(\".concat(transform.rotate, \" 0 0)\");\n var inner = {\n transform: \"\".concat(innerTranslate, \" \").concat(innerScale, \" \").concat(innerRotate)\n };\n var path = {\n transform: \"translate(\".concat(iconWidth / 2 * -1, \" -256)\")\n };\n return {\n outer: outer,\n inner: inner,\n path: path\n };\n}\nfunction transformForCss(_ref2) {\n var transform = _ref2.transform,\n _ref2$width = _ref2.width,\n width = _ref2$width === void 0 ? UNITS_IN_GRID : _ref2$width,\n _ref2$height = _ref2.height,\n height = _ref2$height === void 0 ? UNITS_IN_GRID : _ref2$height,\n _ref2$startCentered = _ref2.startCentered,\n startCentered = _ref2$startCentered === void 0 ? false : _ref2$startCentered;\n var val = '';\n\n if (startCentered && IS_IE) {\n val += \"translate(\".concat(transform.x / d - width / 2, \"em, \").concat(transform.y / d - height / 2, \"em) \");\n } else if (startCentered) {\n val += \"translate(calc(-50% + \".concat(transform.x / d, \"em), calc(-50% + \").concat(transform.y / d, \"em)) \");\n } else {\n val += \"translate(\".concat(transform.x / d, \"em, \").concat(transform.y / d, \"em) \");\n }\n\n val += \"scale(\".concat(transform.size / d * (transform.flipX ? -1 : 1), \", \").concat(transform.size / d * (transform.flipY ? -1 : 1), \") \");\n val += \"rotate(\".concat(transform.rotate, \"deg) \");\n return val;\n}\n\nvar baseStyles = \":root, :host {\\n --fa-font-solid: normal 900 1em/1 \\\"Font Awesome 6 Solid\\\";\\n --fa-font-regular: normal 400 1em/1 \\\"Font Awesome 6 Regular\\\";\\n --fa-font-light: normal 300 1em/1 \\\"Font Awesome 6 Light\\\";\\n --fa-font-thin: normal 100 1em/1 \\\"Font Awesome 6 Thin\\\";\\n --fa-font-duotone: normal 900 1em/1 \\\"Font Awesome 6 Duotone\\\";\\n --fa-font-brands: normal 400 1em/1 \\\"Font Awesome 6 Brands\\\";\\n}\\n\\nsvg:not(:root).svg-inline--fa, svg:not(:host).svg-inline--fa {\\n overflow: visible;\\n box-sizing: content-box;\\n}\\n\\n.svg-inline--fa {\\n display: var(--fa-display, inline-block);\\n height: 1em;\\n overflow: visible;\\n vertical-align: -0.125em;\\n}\\n.svg-inline--fa.fa-2xs {\\n vertical-align: 0.1em;\\n}\\n.svg-inline--fa.fa-xs {\\n vertical-align: 0em;\\n}\\n.svg-inline--fa.fa-sm {\\n vertical-align: -0.0714285705em;\\n}\\n.svg-inline--fa.fa-lg {\\n vertical-align: -0.2em;\\n}\\n.svg-inline--fa.fa-xl {\\n vertical-align: -0.25em;\\n}\\n.svg-inline--fa.fa-2xl {\\n vertical-align: -0.3125em;\\n}\\n.svg-inline--fa.fa-pull-left {\\n margin-right: var(--fa-pull-margin, 0.3em);\\n width: auto;\\n}\\n.svg-inline--fa.fa-pull-right {\\n margin-left: var(--fa-pull-margin, 0.3em);\\n width: auto;\\n}\\n.svg-inline--fa.fa-li {\\n width: var(--fa-li-width, 2em);\\n top: 0.25em;\\n}\\n.svg-inline--fa.fa-fw {\\n width: var(--fa-fw-width, 1.25em);\\n}\\n\\n.fa-layers svg.svg-inline--fa {\\n bottom: 0;\\n left: 0;\\n margin: auto;\\n position: absolute;\\n right: 0;\\n top: 0;\\n}\\n\\n.fa-layers-counter, .fa-layers-text {\\n display: inline-block;\\n position: absolute;\\n text-align: center;\\n}\\n\\n.fa-layers {\\n display: inline-block;\\n height: 1em;\\n position: relative;\\n text-align: center;\\n vertical-align: -0.125em;\\n width: 1em;\\n}\\n.fa-layers svg.svg-inline--fa {\\n -webkit-transform-origin: center center;\\n transform-origin: center center;\\n}\\n\\n.fa-layers-text {\\n left: 50%;\\n top: 50%;\\n -webkit-transform: translate(-50%, -50%);\\n transform: translate(-50%, -50%);\\n -webkit-transform-origin: center center;\\n transform-origin: center center;\\n}\\n\\n.fa-layers-counter {\\n background-color: var(--fa-counter-background-color, #ff253a);\\n border-radius: var(--fa-counter-border-radius, 1em);\\n box-sizing: border-box;\\n color: var(--fa-inverse, #fff);\\n line-height: var(--fa-counter-line-height, 1);\\n max-width: var(--fa-counter-max-width, 5em);\\n min-width: var(--fa-counter-min-width, 1.5em);\\n overflow: hidden;\\n padding: var(--fa-counter-padding, 0.25em 0.5em);\\n right: var(--fa-right, 0);\\n text-overflow: ellipsis;\\n top: var(--fa-top, 0);\\n -webkit-transform: scale(var(--fa-counter-scale, 0.25));\\n transform: scale(var(--fa-counter-scale, 0.25));\\n -webkit-transform-origin: top right;\\n transform-origin: top right;\\n}\\n\\n.fa-layers-bottom-right {\\n bottom: var(--fa-bottom, 0);\\n right: var(--fa-right, 0);\\n top: auto;\\n -webkit-transform: scale(var(--fa-layers-scale, 0.25));\\n transform: scale(var(--fa-layers-scale, 0.25));\\n -webkit-transform-origin: bottom right;\\n transform-origin: bottom right;\\n}\\n\\n.fa-layers-bottom-left {\\n bottom: var(--fa-bottom, 0);\\n left: var(--fa-left, 0);\\n right: auto;\\n top: auto;\\n -webkit-transform: scale(var(--fa-layers-scale, 0.25));\\n transform: scale(var(--fa-layers-scale, 0.25));\\n -webkit-transform-origin: bottom left;\\n transform-origin: bottom left;\\n}\\n\\n.fa-layers-top-right {\\n top: var(--fa-top, 0);\\n right: var(--fa-right, 0);\\n -webkit-transform: scale(var(--fa-layers-scale, 0.25));\\n transform: scale(var(--fa-layers-scale, 0.25));\\n -webkit-transform-origin: top right;\\n transform-origin: top right;\\n}\\n\\n.fa-layers-top-left {\\n left: var(--fa-left, 0);\\n right: auto;\\n top: var(--fa-top, 0);\\n -webkit-transform: scale(var(--fa-layers-scale, 0.25));\\n transform: scale(var(--fa-layers-scale, 0.25));\\n -webkit-transform-origin: top left;\\n transform-origin: top left;\\n}\\n\\n.fa-1x {\\n font-size: 1em;\\n}\\n\\n.fa-2x {\\n font-size: 2em;\\n}\\n\\n.fa-3x {\\n font-size: 3em;\\n}\\n\\n.fa-4x {\\n font-size: 4em;\\n}\\n\\n.fa-5x {\\n font-size: 5em;\\n}\\n\\n.fa-6x {\\n font-size: 6em;\\n}\\n\\n.fa-7x {\\n font-size: 7em;\\n}\\n\\n.fa-8x {\\n font-size: 8em;\\n}\\n\\n.fa-9x {\\n font-size: 9em;\\n}\\n\\n.fa-10x {\\n font-size: 10em;\\n}\\n\\n.fa-2xs {\\n font-size: 0.625em;\\n line-height: 0.1em;\\n vertical-align: 0.225em;\\n}\\n\\n.fa-xs {\\n font-size: 0.75em;\\n line-height: 0.0833333337em;\\n vertical-align: 0.125em;\\n}\\n\\n.fa-sm {\\n font-size: 0.875em;\\n line-height: 0.0714285718em;\\n vertical-align: 0.0535714295em;\\n}\\n\\n.fa-lg {\\n font-size: 1.25em;\\n line-height: 0.05em;\\n vertical-align: -0.075em;\\n}\\n\\n.fa-xl {\\n font-size: 1.5em;\\n line-height: 0.0416666682em;\\n vertical-align: -0.125em;\\n}\\n\\n.fa-2xl {\\n font-size: 2em;\\n line-height: 0.03125em;\\n vertical-align: -0.1875em;\\n}\\n\\n.fa-fw {\\n text-align: center;\\n width: 1.25em;\\n}\\n\\n.fa-ul {\\n list-style-type: none;\\n margin-left: var(--fa-li-margin, 2.5em);\\n padding-left: 0;\\n}\\n.fa-ul > li {\\n position: relative;\\n}\\n\\n.fa-li {\\n left: calc(var(--fa-li-width, 2em) * -1);\\n position: absolute;\\n text-align: center;\\n width: var(--fa-li-width, 2em);\\n line-height: inherit;\\n}\\n\\n.fa-border {\\n border-color: var(--fa-border-color, #eee);\\n border-radius: var(--fa-border-radius, 0.1em);\\n border-style: var(--fa-border-style, solid);\\n border-width: var(--fa-border-width, 0.08em);\\n padding: var(--fa-border-padding, 0.2em 0.25em 0.15em);\\n}\\n\\n.fa-pull-left {\\n float: left;\\n margin-right: var(--fa-pull-margin, 0.3em);\\n}\\n\\n.fa-pull-right {\\n float: right;\\n margin-left: var(--fa-pull-margin, 0.3em);\\n}\\n\\n.fa-beat {\\n -webkit-animation-name: fa-beat;\\n animation-name: fa-beat;\\n -webkit-animation-delay: var(--fa-animation-delay, 0);\\n animation-delay: var(--fa-animation-delay, 0);\\n -webkit-animation-direction: var(--fa-animation-direction, normal);\\n animation-direction: var(--fa-animation-direction, normal);\\n -webkit-animation-duration: var(--fa-animation-duration, 1s);\\n animation-duration: var(--fa-animation-duration, 1s);\\n -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n -webkit-animation-timing-function: var(--fa-animation-timing, ease-in-out);\\n animation-timing-function: var(--fa-animation-timing, ease-in-out);\\n}\\n\\n.fa-bounce {\\n -webkit-animation-name: fa-bounce;\\n animation-name: fa-bounce;\\n -webkit-animation-delay: var(--fa-animation-delay, 0);\\n animation-delay: var(--fa-animation-delay, 0);\\n -webkit-animation-direction: var(--fa-animation-direction, normal);\\n animation-direction: var(--fa-animation-direction, normal);\\n -webkit-animation-duration: var(--fa-animation-duration, 1s);\\n animation-duration: var(--fa-animation-duration, 1s);\\n -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n -webkit-animation-timing-function: var(--fa-animation-timing, cubic-bezier(0.28, 0.84, 0.42, 1));\\n animation-timing-function: var(--fa-animation-timing, cubic-bezier(0.28, 0.84, 0.42, 1));\\n}\\n\\n.fa-fade {\\n -webkit-animation-name: fa-fade;\\n animation-name: fa-fade;\\n -webkit-animation-delay: var(--fa-animation-delay, 0);\\n animation-delay: var(--fa-animation-delay, 0);\\n -webkit-animation-direction: var(--fa-animation-direction, normal);\\n animation-direction: var(--fa-animation-direction, normal);\\n -webkit-animation-duration: var(--fa-animation-duration, 1s);\\n animation-duration: var(--fa-animation-duration, 1s);\\n -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n -webkit-animation-timing-function: var(--fa-animation-timing, cubic-bezier(0.4, 0, 0.6, 1));\\n animation-timing-function: var(--fa-animation-timing, cubic-bezier(0.4, 0, 0.6, 1));\\n}\\n\\n.fa-beat-fade {\\n -webkit-animation-name: fa-beat-fade;\\n animation-name: fa-beat-fade;\\n -webkit-animation-delay: var(--fa-animation-delay, 0);\\n animation-delay: var(--fa-animation-delay, 0);\\n -webkit-animation-direction: var(--fa-animation-direction, normal);\\n animation-direction: var(--fa-animation-direction, normal);\\n -webkit-animation-duration: var(--fa-animation-duration, 1s);\\n animation-duration: var(--fa-animation-duration, 1s);\\n -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n -webkit-animation-timing-function: var(--fa-animation-timing, cubic-bezier(0.4, 0, 0.6, 1));\\n animation-timing-function: var(--fa-animation-timing, cubic-bezier(0.4, 0, 0.6, 1));\\n}\\n\\n.fa-flip {\\n -webkit-animation-name: fa-flip;\\n animation-name: fa-flip;\\n -webkit-animation-delay: var(--fa-animation-delay, 0);\\n animation-delay: var(--fa-animation-delay, 0);\\n -webkit-animation-direction: var(--fa-animation-direction, normal);\\n animation-direction: var(--fa-animation-direction, normal);\\n -webkit-animation-duration: var(--fa-animation-duration, 1s);\\n animation-duration: var(--fa-animation-duration, 1s);\\n -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n -webkit-animation-timing-function: var(--fa-animation-timing, ease-in-out);\\n animation-timing-function: var(--fa-animation-timing, ease-in-out);\\n}\\n\\n.fa-shake {\\n -webkit-animation-name: fa-shake;\\n animation-name: fa-shake;\\n -webkit-animation-delay: var(--fa-animation-delay, 0);\\n animation-delay: var(--fa-animation-delay, 0);\\n -webkit-animation-direction: var(--fa-animation-direction, normal);\\n animation-direction: var(--fa-animation-direction, normal);\\n -webkit-animation-duration: var(--fa-animation-duration, 1s);\\n animation-duration: var(--fa-animation-duration, 1s);\\n -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n -webkit-animation-timing-function: var(--fa-animation-timing, linear);\\n animation-timing-function: var(--fa-animation-timing, linear);\\n}\\n\\n.fa-spin {\\n -webkit-animation-name: fa-spin;\\n animation-name: fa-spin;\\n -webkit-animation-delay: var(--fa-animation-delay, 0);\\n animation-delay: var(--fa-animation-delay, 0);\\n -webkit-animation-direction: var(--fa-animation-direction, normal);\\n animation-direction: var(--fa-animation-direction, normal);\\n -webkit-animation-duration: var(--fa-animation-duration, 2s);\\n animation-duration: var(--fa-animation-duration, 2s);\\n -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n -webkit-animation-timing-function: var(--fa-animation-timing, linear);\\n animation-timing-function: var(--fa-animation-timing, linear);\\n}\\n\\n.fa-spin-reverse {\\n --fa-animation-direction: reverse;\\n}\\n\\n.fa-pulse,\\n.fa-spin-pulse {\\n -webkit-animation-name: fa-spin;\\n animation-name: fa-spin;\\n -webkit-animation-direction: var(--fa-animation-direction, normal);\\n animation-direction: var(--fa-animation-direction, normal);\\n -webkit-animation-duration: var(--fa-animation-duration, 1s);\\n animation-duration: var(--fa-animation-duration, 1s);\\n -webkit-animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n animation-iteration-count: var(--fa-animation-iteration-count, infinite);\\n -webkit-animation-timing-function: var(--fa-animation-timing, steps(8));\\n animation-timing-function: var(--fa-animation-timing, steps(8));\\n}\\n\\n@media (prefers-reduced-motion: reduce) {\\n .fa-beat,\\n.fa-bounce,\\n.fa-fade,\\n.fa-beat-fade,\\n.fa-flip,\\n.fa-pulse,\\n.fa-shake,\\n.fa-spin,\\n.fa-spin-pulse {\\n -webkit-animation-delay: -1ms;\\n animation-delay: -1ms;\\n -webkit-animation-duration: 1ms;\\n animation-duration: 1ms;\\n -webkit-animation-iteration-count: 1;\\n animation-iteration-count: 1;\\n transition-delay: 0s;\\n transition-duration: 0s;\\n }\\n}\\n@-webkit-keyframes fa-beat {\\n 0%, 90% {\\n -webkit-transform: scale(1);\\n transform: scale(1);\\n }\\n 45% {\\n -webkit-transform: scale(var(--fa-beat-scale, 1.25));\\n transform: scale(var(--fa-beat-scale, 1.25));\\n }\\n}\\n@keyframes fa-beat {\\n 0%, 90% {\\n -webkit-transform: scale(1);\\n transform: scale(1);\\n }\\n 45% {\\n -webkit-transform: scale(var(--fa-beat-scale, 1.25));\\n transform: scale(var(--fa-beat-scale, 1.25));\\n }\\n}\\n@-webkit-keyframes fa-bounce {\\n 0% {\\n -webkit-transform: scale(1, 1) translateY(0);\\n transform: scale(1, 1) translateY(0);\\n }\\n 10% {\\n -webkit-transform: scale(var(--fa-bounce-start-scale-x, 1.1), var(--fa-bounce-start-scale-y, 0.9)) translateY(0);\\n transform: scale(var(--fa-bounce-start-scale-x, 1.1), var(--fa-bounce-start-scale-y, 0.9)) translateY(0);\\n }\\n 30% {\\n -webkit-transform: scale(var(--fa-bounce-jump-scale-x, 0.9), var(--fa-bounce-jump-scale-y, 1.1)) translateY(var(--fa-bounce-height, -0.5em));\\n transform: scale(var(--fa-bounce-jump-scale-x, 0.9), var(--fa-bounce-jump-scale-y, 1.1)) translateY(var(--fa-bounce-height, -0.5em));\\n }\\n 50% {\\n -webkit-transform: scale(var(--fa-bounce-land-scale-x, 1.05), var(--fa-bounce-land-scale-y, 0.95)) translateY(0);\\n transform: scale(var(--fa-bounce-land-scale-x, 1.05), var(--fa-bounce-land-scale-y, 0.95)) translateY(0);\\n }\\n 57% {\\n -webkit-transform: scale(1, 1) translateY(var(--fa-bounce-rebound, -0.125em));\\n transform: scale(1, 1) translateY(var(--fa-bounce-rebound, -0.125em));\\n }\\n 64% {\\n -webkit-transform: scale(1, 1) translateY(0);\\n transform: scale(1, 1) translateY(0);\\n }\\n 100% {\\n -webkit-transform: scale(1, 1) translateY(0);\\n transform: scale(1, 1) translateY(0);\\n }\\n}\\n@keyframes fa-bounce {\\n 0% {\\n -webkit-transform: scale(1, 1) translateY(0);\\n transform: scale(1, 1) translateY(0);\\n }\\n 10% {\\n -webkit-transform: scale(var(--fa-bounce-start-scale-x, 1.1), var(--fa-bounce-start-scale-y, 0.9)) translateY(0);\\n transform: scale(var(--fa-bounce-start-scale-x, 1.1), var(--fa-bounce-start-scale-y, 0.9)) translateY(0);\\n }\\n 30% {\\n -webkit-transform: scale(var(--fa-bounce-jump-scale-x, 0.9), var(--fa-bounce-jump-scale-y, 1.1)) translateY(var(--fa-bounce-height, -0.5em));\\n transform: scale(var(--fa-bounce-jump-scale-x, 0.9), var(--fa-bounce-jump-scale-y, 1.1)) translateY(var(--fa-bounce-height, -0.5em));\\n }\\n 50% {\\n -webkit-transform: scale(var(--fa-bounce-land-scale-x, 1.05), var(--fa-bounce-land-scale-y, 0.95)) translateY(0);\\n transform: scale(var(--fa-bounce-land-scale-x, 1.05), var(--fa-bounce-land-scale-y, 0.95)) translateY(0);\\n }\\n 57% {\\n -webkit-transform: scale(1, 1) translateY(var(--fa-bounce-rebound, -0.125em));\\n transform: scale(1, 1) translateY(var(--fa-bounce-rebound, -0.125em));\\n }\\n 64% {\\n -webkit-transform: scale(1, 1) translateY(0);\\n transform: scale(1, 1) translateY(0);\\n }\\n 100% {\\n -webkit-transform: scale(1, 1) translateY(0);\\n transform: scale(1, 1) translateY(0);\\n }\\n}\\n@-webkit-keyframes fa-fade {\\n 50% {\\n opacity: var(--fa-fade-opacity, 0.4);\\n }\\n}\\n@keyframes fa-fade {\\n 50% {\\n opacity: var(--fa-fade-opacity, 0.4);\\n }\\n}\\n@-webkit-keyframes fa-beat-fade {\\n 0%, 100% {\\n opacity: var(--fa-beat-fade-opacity, 0.4);\\n -webkit-transform: scale(1);\\n transform: scale(1);\\n }\\n 50% {\\n opacity: 1;\\n -webkit-transform: scale(var(--fa-beat-fade-scale, 1.125));\\n transform: scale(var(--fa-beat-fade-scale, 1.125));\\n }\\n}\\n@keyframes fa-beat-fade {\\n 0%, 100% {\\n opacity: var(--fa-beat-fade-opacity, 0.4);\\n -webkit-transform: scale(1);\\n transform: scale(1);\\n }\\n 50% {\\n opacity: 1;\\n -webkit-transform: scale(var(--fa-beat-fade-scale, 1.125));\\n transform: scale(var(--fa-beat-fade-scale, 1.125));\\n }\\n}\\n@-webkit-keyframes fa-flip {\\n 50% {\\n -webkit-transform: rotate3d(var(--fa-flip-x, 0), var(--fa-flip-y, 1), var(--fa-flip-z, 0), var(--fa-flip-angle, -180deg));\\n transform: rotate3d(var(--fa-flip-x, 0), var(--fa-flip-y, 1), var(--fa-flip-z, 0), var(--fa-flip-angle, -180deg));\\n }\\n}\\n@keyframes fa-flip {\\n 50% {\\n -webkit-transform: rotate3d(var(--fa-flip-x, 0), var(--fa-flip-y, 1), var(--fa-flip-z, 0), var(--fa-flip-angle, -180deg));\\n transform: rotate3d(var(--fa-flip-x, 0), var(--fa-flip-y, 1), var(--fa-flip-z, 0), var(--fa-flip-angle, -180deg));\\n }\\n}\\n@-webkit-keyframes fa-shake {\\n 0% {\\n -webkit-transform: rotate(-15deg);\\n transform: rotate(-15deg);\\n }\\n 4% {\\n -webkit-transform: rotate(15deg);\\n transform: rotate(15deg);\\n }\\n 8%, 24% {\\n -webkit-transform: rotate(-18deg);\\n transform: rotate(-18deg);\\n }\\n 12%, 28% {\\n -webkit-transform: rotate(18deg);\\n transform: rotate(18deg);\\n }\\n 16% {\\n -webkit-transform: rotate(-22deg);\\n transform: rotate(-22deg);\\n }\\n 20% {\\n -webkit-transform: rotate(22deg);\\n transform: rotate(22deg);\\n }\\n 32% {\\n -webkit-transform: rotate(-12deg);\\n transform: rotate(-12deg);\\n }\\n 36% {\\n -webkit-transform: rotate(12deg);\\n transform: rotate(12deg);\\n }\\n 40%, 100% {\\n -webkit-transform: rotate(0deg);\\n transform: rotate(0deg);\\n }\\n}\\n@keyframes fa-shake {\\n 0% {\\n -webkit-transform: rotate(-15deg);\\n transform: rotate(-15deg);\\n }\\n 4% {\\n -webkit-transform: rotate(15deg);\\n transform: rotate(15deg);\\n }\\n 8%, 24% {\\n -webkit-transform: rotate(-18deg);\\n transform: rotate(-18deg);\\n }\\n 12%, 28% {\\n -webkit-transform: rotate(18deg);\\n transform: rotate(18deg);\\n }\\n 16% {\\n -webkit-transform: rotate(-22deg);\\n transform: rotate(-22deg);\\n }\\n 20% {\\n -webkit-transform: rotate(22deg);\\n transform: rotate(22deg);\\n }\\n 32% {\\n -webkit-transform: rotate(-12deg);\\n transform: rotate(-12deg);\\n }\\n 36% {\\n -webkit-transform: rotate(12deg);\\n transform: rotate(12deg);\\n }\\n 40%, 100% {\\n -webkit-transform: rotate(0deg);\\n transform: rotate(0deg);\\n }\\n}\\n@-webkit-keyframes fa-spin {\\n 0% {\\n -webkit-transform: rotate(0deg);\\n transform: rotate(0deg);\\n }\\n 100% {\\n -webkit-transform: rotate(360deg);\\n transform: rotate(360deg);\\n }\\n}\\n@keyframes fa-spin {\\n 0% {\\n -webkit-transform: rotate(0deg);\\n transform: rotate(0deg);\\n }\\n 100% {\\n -webkit-transform: rotate(360deg);\\n transform: rotate(360deg);\\n }\\n}\\n.fa-rotate-90 {\\n -webkit-transform: rotate(90deg);\\n transform: rotate(90deg);\\n}\\n\\n.fa-rotate-180 {\\n -webkit-transform: rotate(180deg);\\n transform: rotate(180deg);\\n}\\n\\n.fa-rotate-270 {\\n -webkit-transform: rotate(270deg);\\n transform: rotate(270deg);\\n}\\n\\n.fa-flip-horizontal {\\n -webkit-transform: scale(-1, 1);\\n transform: scale(-1, 1);\\n}\\n\\n.fa-flip-vertical {\\n -webkit-transform: scale(1, -1);\\n transform: scale(1, -1);\\n}\\n\\n.fa-flip-both,\\n.fa-flip-horizontal.fa-flip-vertical {\\n -webkit-transform: scale(-1, -1);\\n transform: scale(-1, -1);\\n}\\n\\n.fa-rotate-by {\\n -webkit-transform: rotate(var(--fa-rotate-angle, none));\\n transform: rotate(var(--fa-rotate-angle, none));\\n}\\n\\n.fa-stack {\\n display: inline-block;\\n vertical-align: middle;\\n height: 2em;\\n position: relative;\\n width: 2.5em;\\n}\\n\\n.fa-stack-1x,\\n.fa-stack-2x {\\n bottom: 0;\\n left: 0;\\n margin: auto;\\n position: absolute;\\n right: 0;\\n top: 0;\\n z-index: var(--fa-stack-z-index, auto);\\n}\\n\\n.svg-inline--fa.fa-stack-1x {\\n height: 1em;\\n width: 1.25em;\\n}\\n.svg-inline--fa.fa-stack-2x {\\n height: 2em;\\n width: 2.5em;\\n}\\n\\n.fa-inverse {\\n color: var(--fa-inverse, #fff);\\n}\\n\\n.sr-only,\\n.fa-sr-only {\\n position: absolute;\\n width: 1px;\\n height: 1px;\\n padding: 0;\\n margin: -1px;\\n overflow: hidden;\\n clip: rect(0, 0, 0, 0);\\n white-space: nowrap;\\n border-width: 0;\\n}\\n\\n.sr-only-focusable:not(:focus),\\n.fa-sr-only-focusable:not(:focus) {\\n position: absolute;\\n width: 1px;\\n height: 1px;\\n padding: 0;\\n margin: -1px;\\n overflow: hidden;\\n clip: rect(0, 0, 0, 0);\\n white-space: nowrap;\\n border-width: 0;\\n}\\n\\n.svg-inline--fa .fa-primary {\\n fill: var(--fa-primary-color, currentColor);\\n opacity: var(--fa-primary-opacity, 1);\\n}\\n\\n.svg-inline--fa .fa-secondary {\\n fill: var(--fa-secondary-color, currentColor);\\n opacity: var(--fa-secondary-opacity, 0.4);\\n}\\n\\n.svg-inline--fa.fa-swap-opacity .fa-primary {\\n opacity: var(--fa-secondary-opacity, 0.4);\\n}\\n\\n.svg-inline--fa.fa-swap-opacity .fa-secondary {\\n opacity: var(--fa-primary-opacity, 1);\\n}\\n\\n.svg-inline--fa mask .fa-primary,\\n.svg-inline--fa mask .fa-secondary {\\n fill: black;\\n}\\n\\n.fad.fa-inverse,\\n.fa-duotone.fa-inverse {\\n color: var(--fa-inverse, #fff);\\n}\";\n\nfunction css() {\n var dfp = DEFAULT_FAMILY_PREFIX;\n var drc = DEFAULT_REPLACEMENT_CLASS;\n var fp = config.familyPrefix;\n var rc = config.replacementClass;\n var s = baseStyles;\n\n if (fp !== dfp || rc !== drc) {\n var dPatt = new RegExp(\"\\\\.\".concat(dfp, \"\\\\-\"), 'g');\n var customPropPatt = new RegExp(\"\\\\--\".concat(dfp, \"\\\\-\"), 'g');\n var rPatt = new RegExp(\"\\\\.\".concat(drc), 'g');\n s = s.replace(dPatt, \".\".concat(fp, \"-\")).replace(customPropPatt, \"--\".concat(fp, \"-\")).replace(rPatt, \".\".concat(rc));\n }\n\n return s;\n}\n\nvar _cssInserted = false;\n\nfunction ensureCss() {\n if (config.autoAddCss && !_cssInserted) {\n insertCss(css());\n _cssInserted = true;\n }\n}\n\nvar InjectCSS = {\n mixout: function mixout() {\n return {\n dom: {\n css: css,\n insertCss: ensureCss\n }\n };\n },\n hooks: function hooks() {\n return {\n beforeDOMElementCreation: function beforeDOMElementCreation() {\n ensureCss();\n },\n beforeI2svg: function beforeI2svg() {\n ensureCss();\n }\n };\n }\n};\n\nvar w = WINDOW || {};\nif (!w[NAMESPACE_IDENTIFIER]) w[NAMESPACE_IDENTIFIER] = {};\nif (!w[NAMESPACE_IDENTIFIER].styles) w[NAMESPACE_IDENTIFIER].styles = {};\nif (!w[NAMESPACE_IDENTIFIER].hooks) w[NAMESPACE_IDENTIFIER].hooks = {};\nif (!w[NAMESPACE_IDENTIFIER].shims) w[NAMESPACE_IDENTIFIER].shims = [];\nvar namespace = w[NAMESPACE_IDENTIFIER];\n\nvar functions = [];\n\nvar listener = function listener() {\n DOCUMENT.removeEventListener('DOMContentLoaded', listener);\n loaded = 1;\n functions.map(function (fn) {\n return fn();\n });\n};\n\nvar loaded = false;\n\nif (IS_DOM) {\n loaded = (DOCUMENT.documentElement.doScroll ? /^loaded|^c/ : /^loaded|^i|^c/).test(DOCUMENT.readyState);\n if (!loaded) DOCUMENT.addEventListener('DOMContentLoaded', listener);\n}\n\nfunction domready (fn) {\n if (!IS_DOM) return;\n loaded ? setTimeout(fn, 0) : functions.push(fn);\n}\n\nfunction toHtml(abstractNodes) {\n var tag = abstractNodes.tag,\n _abstractNodes$attrib = abstractNodes.attributes,\n attributes = _abstractNodes$attrib === void 0 ? {} : _abstractNodes$attrib,\n _abstractNodes$childr = abstractNodes.children,\n children = _abstractNodes$childr === void 0 ? [] : _abstractNodes$childr;\n\n if (typeof abstractNodes === 'string') {\n return htmlEscape(abstractNodes);\n } else {\n return \"<\".concat(tag, \" \").concat(joinAttributes(attributes), \">\").concat(children.map(toHtml).join(''), \"\").concat(tag, \">\");\n }\n}\n\nfunction iconFromMapping(mapping, prefix, iconName) {\n if (mapping && mapping[prefix] && mapping[prefix][iconName]) {\n return {\n prefix: prefix,\n iconName: iconName,\n icon: mapping[prefix][iconName]\n };\n }\n}\n\n/**\n * Internal helper to bind a function known to have 4 arguments\n * to a given context.\n */\n\nvar bindInternal4 = function bindInternal4(func, thisContext) {\n return function (a, b, c, d) {\n return func.call(thisContext, a, b, c, d);\n };\n};\n\n/**\n * # Reduce\n *\n * A fast object `.reduce()` implementation.\n *\n * @param {Object} subject The object to reduce over.\n * @param {Function} fn The reducer function.\n * @param {mixed} initialValue The initial value for the reducer, defaults to subject[0].\n * @param {Object} thisContext The context for the reducer.\n * @return {mixed} The final result.\n */\n\n\nvar reduce = function fastReduceObject(subject, fn, initialValue, thisContext) {\n var keys = Object.keys(subject),\n length = keys.length,\n iterator = thisContext !== undefined ? bindInternal4(fn, thisContext) : fn,\n i,\n key,\n result;\n\n if (initialValue === undefined) {\n i = 1;\n result = subject[keys[0]];\n } else {\n i = 0;\n result = initialValue;\n }\n\n for (; i < length; i++) {\n key = keys[i];\n result = iterator(result, subject[key], key, subject);\n }\n\n return result;\n};\n\n/**\n * ucs2decode() and codePointAt() are both works of Mathias Bynens and licensed under MIT\n *\n * Copyright Mathias Bynens} */\n let marker;\n return start;\n\n /**\n * Start of thematic break.\n *\n * ```markdown\n * > | ***\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"thematicBreak\");\n // To do: parse indent like `markdown-rs`.\n return before(code);\n }\n\n /**\n * After optional whitespace, at marker.\n *\n * ```markdown\n * > | ***\n * ^\n * ```\n *\n * @type {State}\n */\n function before(code) {\n marker = code;\n return atBreak(code);\n }\n\n /**\n * After something, before something else.\n *\n * ```markdown\n * > | ***\n * ^\n * ```\n *\n * @type {State}\n */\n function atBreak(code) {\n if (code === marker) {\n effects.enter(\"thematicBreakSequence\");\n return sequence(code);\n }\n if (size >= 3 && (code === null || markdownLineEnding(code))) {\n effects.exit(\"thematicBreak\");\n return ok(code);\n }\n return nok(code);\n }\n\n /**\n * In sequence.\n *\n * ```markdown\n * > | ***\n * ^\n * ```\n *\n * @type {State}\n */\n function sequence(code) {\n if (code === marker) {\n effects.consume(code);\n size++;\n return sequence;\n }\n effects.exit(\"thematicBreakSequence\");\n return markdownSpace(code) ? factorySpace(effects, atBreak, \"whitespace\")(code) : atBreak(code);\n }\n}","/**\n * @import {\n * Code,\n * Construct,\n * Exiter,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { factorySpace } from 'micromark-factory-space';\nimport { asciiDigit, markdownSpace } from 'micromark-util-character';\nimport { blankLine } from './blank-line.js';\nimport { thematicBreak } from './thematic-break.js';\n\n/** @type {Construct} */\nexport const list = {\n continuation: {\n tokenize: tokenizeListContinuation\n },\n exit: tokenizeListEnd,\n name: 'list',\n tokenize: tokenizeListStart\n};\n\n/** @type {Construct} */\nconst listItemPrefixWhitespaceConstruct = {\n partial: true,\n tokenize: tokenizeListItemPrefixWhitespace\n};\n\n/** @type {Construct} */\nconst indentConstruct = {\n partial: true,\n tokenize: tokenizeIndent\n};\n\n// To do: `markdown-rs` parses list items on their own and later stitches them\n// together.\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeListStart(effects, ok, nok) {\n const self = this;\n const tail = self.events[self.events.length - 1];\n let initialSize = tail && tail[1].type === \"linePrefix\" ? tail[2].sliceSerialize(tail[1], true).length : 0;\n let size = 0;\n return start;\n\n /** @type {State} */\n function start(code) {\n const kind = self.containerState.type || (code === 42 || code === 43 || code === 45 ? \"listUnordered\" : \"listOrdered\");\n if (kind === \"listUnordered\" ? !self.containerState.marker || code === self.containerState.marker : asciiDigit(code)) {\n if (!self.containerState.type) {\n self.containerState.type = kind;\n effects.enter(kind, {\n _container: true\n });\n }\n if (kind === \"listUnordered\") {\n effects.enter(\"listItemPrefix\");\n return code === 42 || code === 45 ? effects.check(thematicBreak, nok, atMarker)(code) : atMarker(code);\n }\n if (!self.interrupt || code === 49) {\n effects.enter(\"listItemPrefix\");\n effects.enter(\"listItemValue\");\n return inside(code);\n }\n }\n return nok(code);\n }\n\n /** @type {State} */\n function inside(code) {\n if (asciiDigit(code) && ++size < 10) {\n effects.consume(code);\n return inside;\n }\n if ((!self.interrupt || size < 2) && (self.containerState.marker ? code === self.containerState.marker : code === 41 || code === 46)) {\n effects.exit(\"listItemValue\");\n return atMarker(code);\n }\n return nok(code);\n }\n\n /**\n * @type {State}\n **/\n function atMarker(code) {\n effects.enter(\"listItemMarker\");\n effects.consume(code);\n effects.exit(\"listItemMarker\");\n self.containerState.marker = self.containerState.marker || code;\n return effects.check(blankLine,\n // Can’t be empty when interrupting.\n self.interrupt ? nok : onBlank, effects.attempt(listItemPrefixWhitespaceConstruct, endOfPrefix, otherPrefix));\n }\n\n /** @type {State} */\n function onBlank(code) {\n self.containerState.initialBlankLine = true;\n initialSize++;\n return endOfPrefix(code);\n }\n\n /** @type {State} */\n function otherPrefix(code) {\n if (markdownSpace(code)) {\n effects.enter(\"listItemPrefixWhitespace\");\n effects.consume(code);\n effects.exit(\"listItemPrefixWhitespace\");\n return endOfPrefix;\n }\n return nok(code);\n }\n\n /** @type {State} */\n function endOfPrefix(code) {\n self.containerState.size = initialSize + self.sliceSerialize(effects.exit(\"listItemPrefix\"), true).length;\n return ok(code);\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeListContinuation(effects, ok, nok) {\n const self = this;\n self.containerState._closeFlow = undefined;\n return effects.check(blankLine, onBlank, notBlank);\n\n /** @type {State} */\n function onBlank(code) {\n self.containerState.furtherBlankLines = self.containerState.furtherBlankLines || self.containerState.initialBlankLine;\n\n // We have a blank line.\n // Still, try to consume at most the items size.\n return factorySpace(effects, ok, \"listItemIndent\", self.containerState.size + 1)(code);\n }\n\n /** @type {State} */\n function notBlank(code) {\n if (self.containerState.furtherBlankLines || !markdownSpace(code)) {\n self.containerState.furtherBlankLines = undefined;\n self.containerState.initialBlankLine = undefined;\n return notInCurrentItem(code);\n }\n self.containerState.furtherBlankLines = undefined;\n self.containerState.initialBlankLine = undefined;\n return effects.attempt(indentConstruct, ok, notInCurrentItem)(code);\n }\n\n /** @type {State} */\n function notInCurrentItem(code) {\n // While we do continue, we signal that the flow should be closed.\n self.containerState._closeFlow = true;\n // As we’re closing flow, we’re no longer interrupting.\n self.interrupt = undefined;\n // Always populated by defaults.\n\n return factorySpace(effects, effects.attempt(list, ok, nok), \"linePrefix\", self.parser.constructs.disable.null.includes('codeIndented') ? undefined : 4)(code);\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeIndent(effects, ok, nok) {\n const self = this;\n return factorySpace(effects, afterPrefix, \"listItemIndent\", self.containerState.size + 1);\n\n /** @type {State} */\n function afterPrefix(code) {\n const tail = self.events[self.events.length - 1];\n return tail && tail[1].type === \"listItemIndent\" && tail[2].sliceSerialize(tail[1], true).length === self.containerState.size ? ok(code) : nok(code);\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Exiter}\n */\nfunction tokenizeListEnd(effects) {\n effects.exit(this.containerState.type);\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeListItemPrefixWhitespace(effects, ok, nok) {\n const self = this;\n\n // Always populated by defaults.\n\n return factorySpace(effects, afterPrefix, \"listItemPrefixWhitespace\", self.parser.constructs.disable.null.includes('codeIndented') ? undefined : 4 + 1);\n\n /** @type {State} */\n function afterPrefix(code) {\n const tail = self.events[self.events.length - 1];\n return !markdownSpace(code) && tail && tail[1].type === \"listItemPrefixWhitespace\" ? ok(code) : nok(code);\n }\n}","/**\n * @import {\n * Construct,\n * Exiter,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { factorySpace } from 'micromark-factory-space';\nimport { markdownSpace } from 'micromark-util-character';\n/** @type {Construct} */\nexport const blockQuote = {\n continuation: {\n tokenize: tokenizeBlockQuoteContinuation\n },\n exit,\n name: 'blockQuote',\n tokenize: tokenizeBlockQuoteStart\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeBlockQuoteStart(effects, ok, nok) {\n const self = this;\n return start;\n\n /**\n * Start of block quote.\n *\n * ```markdown\n * > | > a\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n if (code === 62) {\n const state = self.containerState;\n if (!state.open) {\n effects.enter(\"blockQuote\", {\n _container: true\n });\n state.open = true;\n }\n effects.enter(\"blockQuotePrefix\");\n effects.enter(\"blockQuoteMarker\");\n effects.consume(code);\n effects.exit(\"blockQuoteMarker\");\n return after;\n }\n return nok(code);\n }\n\n /**\n * After `>`, before optional whitespace.\n *\n * ```markdown\n * > | > a\n * ^\n * ```\n *\n * @type {State}\n */\n function after(code) {\n if (markdownSpace(code)) {\n effects.enter(\"blockQuotePrefixWhitespace\");\n effects.consume(code);\n effects.exit(\"blockQuotePrefixWhitespace\");\n effects.exit(\"blockQuotePrefix\");\n return ok;\n }\n effects.exit(\"blockQuotePrefix\");\n return ok(code);\n }\n}\n\n/**\n * Start of block quote continuation.\n *\n * ```markdown\n * | > a\n * > | > b\n * ^\n * ```\n *\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeBlockQuoteContinuation(effects, ok, nok) {\n const self = this;\n return contStart;\n\n /**\n * Start of block quote continuation.\n *\n * Also used to parse the first block quote opening.\n *\n * ```markdown\n * | > a\n * > | > b\n * ^\n * ```\n *\n * @type {State}\n */\n function contStart(code) {\n if (markdownSpace(code)) {\n // Always populated by defaults.\n\n return factorySpace(effects, contBefore, \"linePrefix\", self.parser.constructs.disable.null.includes('codeIndented') ? undefined : 4)(code);\n }\n return contBefore(code);\n }\n\n /**\n * At `>`, after optional whitespace.\n *\n * Also used to parse the first block quote opening.\n *\n * ```markdown\n * | > a\n * > | > b\n * ^\n * ```\n *\n * @type {State}\n */\n function contBefore(code) {\n return effects.attempt(blockQuote, ok, nok)(code);\n }\n}\n\n/** @type {Exiter} */\nfunction exit(effects) {\n effects.exit(\"blockQuote\");\n}","/**\n * @import {Effects, State, TokenType} from 'micromark-util-types'\n */\n\nimport { asciiControl, markdownLineEndingOrSpace, markdownLineEnding } from 'micromark-util-character';\n/**\n * Parse destinations.\n *\n * ###### Examples\n *\n * ```markdown\n * \n * b>\n * \n * \n * a\n * a\\)b\n * a(b)c\n * a(b)\n * ```\n *\n * @param {Effects} effects\n * Context.\n * @param {State} ok\n * State switched to when successful.\n * @param {State} nok\n * State switched to when unsuccessful.\n * @param {TokenType} type\n * Type for whole (`` or `b`).\n * @param {TokenType} literalType\n * Type when enclosed (``).\n * @param {TokenType} literalMarkerType\n * Type for enclosing (`<` and `>`).\n * @param {TokenType} rawType\n * Type when not enclosed (`b`).\n * @param {TokenType} stringType\n * Type for the value (`a` or `b`).\n * @param {number | undefined} [max=Infinity]\n * Depth of nested parens (inclusive).\n * @returns {State}\n * Start state.\n */\nexport function factoryDestination(effects, ok, nok, type, literalType, literalMarkerType, rawType, stringType, max) {\n const limit = max || Number.POSITIVE_INFINITY;\n let balance = 0;\n return start;\n\n /**\n * Start of destination.\n *\n * ```markdown\n * > | \n * ^\n * > | aa\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n if (code === 60) {\n effects.enter(type);\n effects.enter(literalType);\n effects.enter(literalMarkerType);\n effects.consume(code);\n effects.exit(literalMarkerType);\n return enclosedBefore;\n }\n\n // ASCII control, space, closing paren.\n if (code === null || code === 32 || code === 41 || asciiControl(code)) {\n return nok(code);\n }\n effects.enter(type);\n effects.enter(rawType);\n effects.enter(stringType);\n effects.enter(\"chunkString\", {\n contentType: \"string\"\n });\n return raw(code);\n }\n\n /**\n * After `<`, at an enclosed destination.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function enclosedBefore(code) {\n if (code === 62) {\n effects.enter(literalMarkerType);\n effects.consume(code);\n effects.exit(literalMarkerType);\n effects.exit(literalType);\n effects.exit(type);\n return ok;\n }\n effects.enter(stringType);\n effects.enter(\"chunkString\", {\n contentType: \"string\"\n });\n return enclosed(code);\n }\n\n /**\n * In enclosed destination.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function enclosed(code) {\n if (code === 62) {\n effects.exit(\"chunkString\");\n effects.exit(stringType);\n return enclosedBefore(code);\n }\n if (code === null || code === 60 || markdownLineEnding(code)) {\n return nok(code);\n }\n effects.consume(code);\n return code === 92 ? enclosedEscape : enclosed;\n }\n\n /**\n * After `\\`, at a special character.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function enclosedEscape(code) {\n if (code === 60 || code === 62 || code === 92) {\n effects.consume(code);\n return enclosed;\n }\n return enclosed(code);\n }\n\n /**\n * In raw destination.\n *\n * ```markdown\n * > | aa\n * ^\n * ```\n *\n * @type {State}\n */\n function raw(code) {\n if (!balance && (code === null || code === 41 || markdownLineEndingOrSpace(code))) {\n effects.exit(\"chunkString\");\n effects.exit(stringType);\n effects.exit(rawType);\n effects.exit(type);\n return ok(code);\n }\n if (balance < limit && code === 40) {\n effects.consume(code);\n balance++;\n return raw;\n }\n if (code === 41) {\n effects.consume(code);\n balance--;\n return raw;\n }\n\n // ASCII control (but *not* `\\0`) and space and `(`.\n // Note: in `markdown-rs`, `\\0` exists in codes, in `micromark-js` it\n // doesn’t.\n if (code === null || code === 32 || code === 40 || asciiControl(code)) {\n return nok(code);\n }\n effects.consume(code);\n return code === 92 ? rawEscape : raw;\n }\n\n /**\n * After `\\`, at special character.\n *\n * ```markdown\n * > | a\\*a\n * ^\n * ```\n *\n * @type {State}\n */\n function rawEscape(code) {\n if (code === 40 || code === 41 || code === 92) {\n effects.consume(code);\n return raw;\n }\n return raw(code);\n }\n}","/**\n * @import {\n * Effects,\n * State,\n * TokenizeContext,\n * TokenType\n * } from 'micromark-util-types'\n */\n\nimport { markdownLineEnding, markdownSpace } from 'micromark-util-character';\n/**\n * Parse labels.\n *\n * > 👉 **Note**: labels in markdown are capped at 999 characters in the string.\n *\n * ###### Examples\n *\n * ```markdown\n * [a]\n * [a\n * b]\n * [a\\]b]\n * ```\n *\n * @this {TokenizeContext}\n * Tokenize context.\n * @param {Effects} effects\n * Context.\n * @param {State} ok\n * State switched to when successful.\n * @param {State} nok\n * State switched to when unsuccessful.\n * @param {TokenType} type\n * Type of the whole label (`[a]`).\n * @param {TokenType} markerType\n * Type for the markers (`[` and `]`).\n * @param {TokenType} stringType\n * Type for the identifier (`a`).\n * @returns {State}\n * Start state.\n */\nexport function factoryLabel(effects, ok, nok, type, markerType, stringType) {\n const self = this;\n let size = 0;\n /** @type {boolean} */\n let seen;\n return start;\n\n /**\n * Start of label.\n *\n * ```markdown\n * > | [a]\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(type);\n effects.enter(markerType);\n effects.consume(code);\n effects.exit(markerType);\n effects.enter(stringType);\n return atBreak;\n }\n\n /**\n * In label, at something, before something else.\n *\n * ```markdown\n * > | [a]\n * ^\n * ```\n *\n * @type {State}\n */\n function atBreak(code) {\n if (size > 999 || code === null || code === 91 || code === 93 && !seen ||\n // To do: remove in the future once we’ve switched from\n // `micromark-extension-footnote` to `micromark-extension-gfm-footnote`,\n // which doesn’t need this.\n // Hidden footnotes hook.\n /* c8 ignore next 3 */\n code === 94 && !size && '_hiddenFootnoteSupport' in self.parser.constructs) {\n return nok(code);\n }\n if (code === 93) {\n effects.exit(stringType);\n effects.enter(markerType);\n effects.consume(code);\n effects.exit(markerType);\n effects.exit(type);\n return ok;\n }\n\n // To do: indent? Link chunks and EOLs together?\n if (markdownLineEnding(code)) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return atBreak;\n }\n effects.enter(\"chunkString\", {\n contentType: \"string\"\n });\n return labelInside(code);\n }\n\n /**\n * In label, in text.\n *\n * ```markdown\n * > | [a]\n * ^\n * ```\n *\n * @type {State}\n */\n function labelInside(code) {\n if (code === null || code === 91 || code === 93 || markdownLineEnding(code) || size++ > 999) {\n effects.exit(\"chunkString\");\n return atBreak(code);\n }\n effects.consume(code);\n if (!seen) seen = !markdownSpace(code);\n return code === 92 ? labelEscape : labelInside;\n }\n\n /**\n * After `\\`, at a special character.\n *\n * ```markdown\n * > | [a\\*a]\n * ^\n * ```\n *\n * @type {State}\n */\n function labelEscape(code) {\n if (code === 91 || code === 92 || code === 93) {\n effects.consume(code);\n size++;\n return labelInside;\n }\n return labelInside(code);\n }\n}","/**\n * @import {\n * Code,\n * Effects,\n * State,\n * TokenType\n * } from 'micromark-util-types'\n */\n\nimport { factorySpace } from 'micromark-factory-space';\nimport { markdownLineEnding } from 'micromark-util-character';\n/**\n * Parse titles.\n *\n * ###### Examples\n *\n * ```markdown\n * \"a\"\n * 'b'\n * (c)\n * \"a\n * b\"\n * 'a\n * b'\n * (a\\)b)\n * ```\n *\n * @param {Effects} effects\n * Context.\n * @param {State} ok\n * State switched to when successful.\n * @param {State} nok\n * State switched to when unsuccessful.\n * @param {TokenType} type\n * Type of the whole title (`\"a\"`, `'b'`, `(c)`).\n * @param {TokenType} markerType\n * Type for the markers (`\"`, `'`, `(`, and `)`).\n * @param {TokenType} stringType\n * Type for the value (`a`).\n * @returns {State}\n * Start state.\n */\nexport function factoryTitle(effects, ok, nok, type, markerType, stringType) {\n /** @type {NonNullable} */\n let marker;\n return start;\n\n /**\n * Start of title.\n *\n * ```markdown\n * > | \"a\"\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n if (code === 34 || code === 39 || code === 40) {\n effects.enter(type);\n effects.enter(markerType);\n effects.consume(code);\n effects.exit(markerType);\n marker = code === 40 ? 41 : code;\n return begin;\n }\n return nok(code);\n }\n\n /**\n * After opening marker.\n *\n * This is also used at the closing marker.\n *\n * ```markdown\n * > | \"a\"\n * ^\n * ```\n *\n * @type {State}\n */\n function begin(code) {\n if (code === marker) {\n effects.enter(markerType);\n effects.consume(code);\n effects.exit(markerType);\n effects.exit(type);\n return ok;\n }\n effects.enter(stringType);\n return atBreak(code);\n }\n\n /**\n * At something, before something else.\n *\n * ```markdown\n * > | \"a\"\n * ^\n * ```\n *\n * @type {State}\n */\n function atBreak(code) {\n if (code === marker) {\n effects.exit(stringType);\n return begin(marker);\n }\n if (code === null) {\n return nok(code);\n }\n\n // Note: blank lines can’t exist in content.\n if (markdownLineEnding(code)) {\n // To do: use `space_or_tab_eol_with_options`, connect.\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return factorySpace(effects, atBreak, \"linePrefix\");\n }\n effects.enter(\"chunkString\", {\n contentType: \"string\"\n });\n return inside(code);\n }\n\n /**\n *\n *\n * @type {State}\n */\n function inside(code) {\n if (code === marker || code === null || markdownLineEnding(code)) {\n effects.exit(\"chunkString\");\n return atBreak(code);\n }\n effects.consume(code);\n return code === 92 ? escape : inside;\n }\n\n /**\n * After `\\`, at a special character.\n *\n * ```markdown\n * > | \"a\\*b\"\n * ^\n * ```\n *\n * @type {State}\n */\n function escape(code) {\n if (code === marker || code === 92) {\n effects.consume(code);\n return inside;\n }\n return inside(code);\n }\n}","/**\n * @import {Effects, State} from 'micromark-util-types'\n */\n\nimport { factorySpace } from 'micromark-factory-space';\nimport { markdownLineEnding, markdownSpace } from 'micromark-util-character';\n/**\n * Parse spaces and tabs.\n *\n * There is no `nok` parameter:\n *\n * * line endings or spaces in markdown are often optional, in which case this\n * factory can be used and `ok` will be switched to whether spaces were found\n * or not\n * * one line ending or space can be detected with\n * `markdownLineEndingOrSpace(code)` right before using `factoryWhitespace`\n *\n * @param {Effects} effects\n * Context.\n * @param {State} ok\n * State switched to when successful.\n * @returns {State}\n * Start state.\n */\nexport function factoryWhitespace(effects, ok) {\n /** @type {boolean} */\n let seen;\n return start;\n\n /** @type {State} */\n function start(code) {\n if (markdownLineEnding(code)) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n seen = true;\n return start;\n }\n if (markdownSpace(code)) {\n return factorySpace(effects, start, seen ? \"linePrefix\" : \"lineSuffix\")(code);\n }\n return ok(code);\n }\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { factoryDestination } from 'micromark-factory-destination';\nimport { factoryLabel } from 'micromark-factory-label';\nimport { factorySpace } from 'micromark-factory-space';\nimport { factoryTitle } from 'micromark-factory-title';\nimport { factoryWhitespace } from 'micromark-factory-whitespace';\nimport { markdownLineEndingOrSpace, markdownLineEnding, markdownSpace } from 'micromark-util-character';\nimport { normalizeIdentifier } from 'micromark-util-normalize-identifier';\n/** @type {Construct} */\nexport const definition = {\n name: 'definition',\n tokenize: tokenizeDefinition\n};\n\n/** @type {Construct} */\nconst titleBefore = {\n partial: true,\n tokenize: tokenizeTitleBefore\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeDefinition(effects, ok, nok) {\n const self = this;\n /** @type {string} */\n let identifier;\n return start;\n\n /**\n * At start of a definition.\n *\n * ```markdown\n * > | [a]: b \"c\"\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n // Do not interrupt paragraphs (but do follow definitions).\n // To do: do `interrupt` the way `markdown-rs` does.\n // To do: parse whitespace the way `markdown-rs` does.\n effects.enter(\"definition\");\n return before(code);\n }\n\n /**\n * After optional whitespace, at `[`.\n *\n * ```markdown\n * > | [a]: b \"c\"\n * ^\n * ```\n *\n * @type {State}\n */\n function before(code) {\n // To do: parse whitespace the way `markdown-rs` does.\n\n return factoryLabel.call(self, effects, labelAfter,\n // Note: we don’t need to reset the way `markdown-rs` does.\n nok, \"definitionLabel\", \"definitionLabelMarker\", \"definitionLabelString\")(code);\n }\n\n /**\n * After label.\n *\n * ```markdown\n * > | [a]: b \"c\"\n * ^\n * ```\n *\n * @type {State}\n */\n function labelAfter(code) {\n identifier = normalizeIdentifier(self.sliceSerialize(self.events[self.events.length - 1][1]).slice(1, -1));\n if (code === 58) {\n effects.enter(\"definitionMarker\");\n effects.consume(code);\n effects.exit(\"definitionMarker\");\n return markerAfter;\n }\n return nok(code);\n }\n\n /**\n * After marker.\n *\n * ```markdown\n * > | [a]: b \"c\"\n * ^\n * ```\n *\n * @type {State}\n */\n function markerAfter(code) {\n // Note: whitespace is optional.\n return markdownLineEndingOrSpace(code) ? factoryWhitespace(effects, destinationBefore)(code) : destinationBefore(code);\n }\n\n /**\n * Before destination.\n *\n * ```markdown\n * > | [a]: b \"c\"\n * ^\n * ```\n *\n * @type {State}\n */\n function destinationBefore(code) {\n return factoryDestination(effects, destinationAfter,\n // Note: we don’t need to reset the way `markdown-rs` does.\n nok, \"definitionDestination\", \"definitionDestinationLiteral\", \"definitionDestinationLiteralMarker\", \"definitionDestinationRaw\", \"definitionDestinationString\")(code);\n }\n\n /**\n * After destination.\n *\n * ```markdown\n * > | [a]: b \"c\"\n * ^\n * ```\n *\n * @type {State}\n */\n function destinationAfter(code) {\n return effects.attempt(titleBefore, after, after)(code);\n }\n\n /**\n * After definition.\n *\n * ```markdown\n * > | [a]: b\n * ^\n * > | [a]: b \"c\"\n * ^\n * ```\n *\n * @type {State}\n */\n function after(code) {\n return markdownSpace(code) ? factorySpace(effects, afterWhitespace, \"whitespace\")(code) : afterWhitespace(code);\n }\n\n /**\n * After definition, after optional whitespace.\n *\n * ```markdown\n * > | [a]: b\n * ^\n * > | [a]: b \"c\"\n * ^\n * ```\n *\n * @type {State}\n */\n function afterWhitespace(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"definition\");\n\n // Note: we don’t care about uniqueness.\n // It’s likely that that doesn’t happen very frequently.\n // It is more likely that it wastes precious time.\n self.parser.defined.push(identifier);\n\n // To do: `markdown-rs` interrupt.\n // // You’d be interrupting.\n // tokenizer.interrupt = true\n return ok(code);\n }\n return nok(code);\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeTitleBefore(effects, ok, nok) {\n return titleBefore;\n\n /**\n * After destination, at whitespace.\n *\n * ```markdown\n * > | [a]: b\n * ^\n * > | [a]: b \"c\"\n * ^\n * ```\n *\n * @type {State}\n */\n function titleBefore(code) {\n return markdownLineEndingOrSpace(code) ? factoryWhitespace(effects, beforeMarker)(code) : nok(code);\n }\n\n /**\n * At title.\n *\n * ```markdown\n * | [a]: b\n * > | \"c\"\n * ^\n * ```\n *\n * @type {State}\n */\n function beforeMarker(code) {\n return factoryTitle(effects, titleAfter, nok, \"definitionTitle\", \"definitionTitleMarker\", \"definitionTitleString\")(code);\n }\n\n /**\n * After title.\n *\n * ```markdown\n * > | [a]: b \"c\"\n * ^\n * ```\n *\n * @type {State}\n */\n function titleAfter(code) {\n return markdownSpace(code) ? factorySpace(effects, titleAfterOptionalWhitespace, \"whitespace\")(code) : titleAfterOptionalWhitespace(code);\n }\n\n /**\n * After title, after optional whitespace.\n *\n * ```markdown\n * > | [a]: b \"c\"\n * ^\n * ```\n *\n * @type {State}\n */\n function titleAfterOptionalWhitespace(code) {\n return code === null || markdownLineEnding(code) ? ok(code) : nok(code);\n }\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { factorySpace } from 'micromark-factory-space';\nimport { markdownLineEnding, markdownSpace } from 'micromark-util-character';\n/** @type {Construct} */\nexport const codeIndented = {\n name: 'codeIndented',\n tokenize: tokenizeCodeIndented\n};\n\n/** @type {Construct} */\nconst furtherStart = {\n partial: true,\n tokenize: tokenizeFurtherStart\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeCodeIndented(effects, ok, nok) {\n const self = this;\n return start;\n\n /**\n * Start of code (indented).\n *\n * > **Parsing note**: it is not needed to check if this first line is a\n * > filled line (that it has a non-whitespace character), because blank lines\n * > are parsed already, so we never run into that.\n *\n * ```markdown\n * > | aaa\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n // To do: manually check if interrupting like `markdown-rs`.\n\n effects.enter(\"codeIndented\");\n // To do: use an improved `space_or_tab` function like `markdown-rs`,\n // so that we can drop the next state.\n return factorySpace(effects, afterPrefix, \"linePrefix\", 4 + 1)(code);\n }\n\n /**\n * At start, after 1 or 4 spaces.\n *\n * ```markdown\n * > | aaa\n * ^\n * ```\n *\n * @type {State}\n */\n function afterPrefix(code) {\n const tail = self.events[self.events.length - 1];\n return tail && tail[1].type === \"linePrefix\" && tail[2].sliceSerialize(tail[1], true).length >= 4 ? atBreak(code) : nok(code);\n }\n\n /**\n * At a break.\n *\n * ```markdown\n * > | aaa\n * ^ ^\n * ```\n *\n * @type {State}\n */\n function atBreak(code) {\n if (code === null) {\n return after(code);\n }\n if (markdownLineEnding(code)) {\n return effects.attempt(furtherStart, atBreak, after)(code);\n }\n effects.enter(\"codeFlowValue\");\n return inside(code);\n }\n\n /**\n * In code content.\n *\n * ```markdown\n * > | aaa\n * ^^^^\n * ```\n *\n * @type {State}\n */\n function inside(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"codeFlowValue\");\n return atBreak(code);\n }\n effects.consume(code);\n return inside;\n }\n\n /** @type {State} */\n function after(code) {\n effects.exit(\"codeIndented\");\n // To do: allow interrupting like `markdown-rs`.\n // Feel free to interrupt.\n // tokenizer.interrupt = false\n return ok(code);\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeFurtherStart(effects, ok, nok) {\n const self = this;\n return furtherStart;\n\n /**\n * At eol, trying to parse another indent.\n *\n * ```markdown\n * > | aaa\n * ^\n * | bbb\n * ```\n *\n * @type {State}\n */\n function furtherStart(code) {\n // To do: improve `lazy` / `pierce` handling.\n // If this is a lazy line, it can’t be code.\n if (self.parser.lazy[self.now().line]) {\n return nok(code);\n }\n if (markdownLineEnding(code)) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return furtherStart;\n }\n\n // To do: the code here in `micromark-js` is a bit different from\n // `markdown-rs` because there it can attempt spaces.\n // We can’t yet.\n //\n // To do: use an improved `space_or_tab` function like `markdown-rs`,\n // so that we can drop the next state.\n return factorySpace(effects, afterPrefix, \"linePrefix\", 4 + 1)(code);\n }\n\n /**\n * At start, after 1 or 4 spaces.\n *\n * ```markdown\n * > | aaa\n * ^\n * ```\n *\n * @type {State}\n */\n function afterPrefix(code) {\n const tail = self.events[self.events.length - 1];\n return tail && tail[1].type === \"linePrefix\" && tail[2].sliceSerialize(tail[1], true).length >= 4 ? ok(code) : markdownLineEnding(code) ? furtherStart(code) : nok(code);\n }\n}","/**\n * @import {\n * Construct,\n * Resolver,\n * State,\n * TokenizeContext,\n * Tokenizer,\n * Token\n * } from 'micromark-util-types'\n */\n\nimport { factorySpace } from 'micromark-factory-space';\nimport { markdownLineEndingOrSpace, markdownLineEnding, markdownSpace } from 'micromark-util-character';\nimport { splice } from 'micromark-util-chunked';\n/** @type {Construct} */\nexport const headingAtx = {\n name: 'headingAtx',\n resolve: resolveHeadingAtx,\n tokenize: tokenizeHeadingAtx\n};\n\n/** @type {Resolver} */\nfunction resolveHeadingAtx(events, context) {\n let contentEnd = events.length - 2;\n let contentStart = 3;\n /** @type {Token} */\n let content;\n /** @type {Token} */\n let text;\n\n // Prefix whitespace, part of the opening.\n if (events[contentStart][1].type === \"whitespace\") {\n contentStart += 2;\n }\n\n // Suffix whitespace, part of the closing.\n if (contentEnd - 2 > contentStart && events[contentEnd][1].type === \"whitespace\") {\n contentEnd -= 2;\n }\n if (events[contentEnd][1].type === \"atxHeadingSequence\" && (contentStart === contentEnd - 1 || contentEnd - 4 > contentStart && events[contentEnd - 2][1].type === \"whitespace\")) {\n contentEnd -= contentStart + 1 === contentEnd ? 2 : 4;\n }\n if (contentEnd > contentStart) {\n content = {\n type: \"atxHeadingText\",\n start: events[contentStart][1].start,\n end: events[contentEnd][1].end\n };\n text = {\n type: \"chunkText\",\n start: events[contentStart][1].start,\n end: events[contentEnd][1].end,\n contentType: \"text\"\n };\n splice(events, contentStart, contentEnd - contentStart + 1, [['enter', content, context], ['enter', text, context], ['exit', text, context], ['exit', content, context]]);\n }\n return events;\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeHeadingAtx(effects, ok, nok) {\n let size = 0;\n return start;\n\n /**\n * Start of a heading (atx).\n *\n * ```markdown\n * > | ## aa\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n // To do: parse indent like `markdown-rs`.\n effects.enter(\"atxHeading\");\n return before(code);\n }\n\n /**\n * After optional whitespace, at `#`.\n *\n * ```markdown\n * > | ## aa\n * ^\n * ```\n *\n * @type {State}\n */\n function before(code) {\n effects.enter(\"atxHeadingSequence\");\n return sequenceOpen(code);\n }\n\n /**\n * In opening sequence.\n *\n * ```markdown\n * > | ## aa\n * ^\n * ```\n *\n * @type {State}\n */\n function sequenceOpen(code) {\n if (code === 35 && size++ < 6) {\n effects.consume(code);\n return sequenceOpen;\n }\n\n // Always at least one `#`.\n if (code === null || markdownLineEndingOrSpace(code)) {\n effects.exit(\"atxHeadingSequence\");\n return atBreak(code);\n }\n return nok(code);\n }\n\n /**\n * After something, before something else.\n *\n * ```markdown\n * > | ## aa\n * ^\n * ```\n *\n * @type {State}\n */\n function atBreak(code) {\n if (code === 35) {\n effects.enter(\"atxHeadingSequence\");\n return sequenceFurther(code);\n }\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"atxHeading\");\n // To do: interrupt like `markdown-rs`.\n // // Feel free to interrupt.\n // tokenizer.interrupt = false\n return ok(code);\n }\n if (markdownSpace(code)) {\n return factorySpace(effects, atBreak, \"whitespace\")(code);\n }\n\n // To do: generate `data` tokens, add the `text` token later.\n // Needs edit map, see: `markdown.rs`.\n effects.enter(\"atxHeadingText\");\n return data(code);\n }\n\n /**\n * In further sequence (after whitespace).\n *\n * Could be normal “visible” hashes in the heading or a final sequence.\n *\n * ```markdown\n * > | ## aa ##\n * ^\n * ```\n *\n * @type {State}\n */\n function sequenceFurther(code) {\n if (code === 35) {\n effects.consume(code);\n return sequenceFurther;\n }\n effects.exit(\"atxHeadingSequence\");\n return atBreak(code);\n }\n\n /**\n * In text.\n *\n * ```markdown\n * > | ## aa\n * ^\n * ```\n *\n * @type {State}\n */\n function data(code) {\n if (code === null || code === 35 || markdownLineEndingOrSpace(code)) {\n effects.exit(\"atxHeadingText\");\n return atBreak(code);\n }\n effects.consume(code);\n return data;\n }\n}","/**\n * @import {\n * Code,\n * Construct,\n * Resolver,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { factorySpace } from 'micromark-factory-space';\nimport { markdownLineEnding, markdownSpace } from 'micromark-util-character';\n/** @type {Construct} */\nexport const setextUnderline = {\n name: 'setextUnderline',\n resolveTo: resolveToSetextUnderline,\n tokenize: tokenizeSetextUnderline\n};\n\n/** @type {Resolver} */\nfunction resolveToSetextUnderline(events, context) {\n // To do: resolve like `markdown-rs`.\n let index = events.length;\n /** @type {number | undefined} */\n let content;\n /** @type {number | undefined} */\n let text;\n /** @type {number | undefined} */\n let definition;\n\n // Find the opening of the content.\n // It’ll always exist: we don’t tokenize if it isn’t there.\n while (index--) {\n if (events[index][0] === 'enter') {\n if (events[index][1].type === \"content\") {\n content = index;\n break;\n }\n if (events[index][1].type === \"paragraph\") {\n text = index;\n }\n }\n // Exit\n else {\n if (events[index][1].type === \"content\") {\n // Remove the content end (if needed we’ll add it later)\n events.splice(index, 1);\n }\n if (!definition && events[index][1].type === \"definition\") {\n definition = index;\n }\n }\n }\n const heading = {\n type: \"setextHeading\",\n start: {\n ...events[content][1].start\n },\n end: {\n ...events[events.length - 1][1].end\n }\n };\n\n // Change the paragraph to setext heading text.\n events[text][1].type = \"setextHeadingText\";\n\n // If we have definitions in the content, we’ll keep on having content,\n // but we need move it.\n if (definition) {\n events.splice(text, 0, ['enter', heading, context]);\n events.splice(definition + 1, 0, ['exit', events[content][1], context]);\n events[content][1].end = {\n ...events[definition][1].end\n };\n } else {\n events[content][1] = heading;\n }\n\n // Add the heading exit at the end.\n events.push(['exit', heading, context]);\n return events;\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeSetextUnderline(effects, ok, nok) {\n const self = this;\n /** @type {NonNullable} */\n let marker;\n return start;\n\n /**\n * At start of heading (setext) underline.\n *\n * ```markdown\n * | aa\n * > | ==\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n let index = self.events.length;\n /** @type {boolean | undefined} */\n let paragraph;\n // Find an opening.\n while (index--) {\n // Skip enter/exit of line ending, line prefix, and content.\n // We can now either have a definition or a paragraph.\n if (self.events[index][1].type !== \"lineEnding\" && self.events[index][1].type !== \"linePrefix\" && self.events[index][1].type !== \"content\") {\n paragraph = self.events[index][1].type === \"paragraph\";\n break;\n }\n }\n\n // To do: handle lazy/pierce like `markdown-rs`.\n // To do: parse indent like `markdown-rs`.\n if (!self.parser.lazy[self.now().line] && (self.interrupt || paragraph)) {\n effects.enter(\"setextHeadingLine\");\n marker = code;\n return before(code);\n }\n return nok(code);\n }\n\n /**\n * After optional whitespace, at `-` or `=`.\n *\n * ```markdown\n * | aa\n * > | ==\n * ^\n * ```\n *\n * @type {State}\n */\n function before(code) {\n effects.enter(\"setextHeadingLineSequence\");\n return inside(code);\n }\n\n /**\n * In sequence.\n *\n * ```markdown\n * | aa\n * > | ==\n * ^\n * ```\n *\n * @type {State}\n */\n function inside(code) {\n if (code === marker) {\n effects.consume(code);\n return inside;\n }\n effects.exit(\"setextHeadingLineSequence\");\n return markdownSpace(code) ? factorySpace(effects, after, \"lineSuffix\")(code) : after(code);\n }\n\n /**\n * After sequence, after optional whitespace.\n *\n * ```markdown\n * | aa\n * > | ==\n * ^\n * ```\n *\n * @type {State}\n */\n function after(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"setextHeadingLine\");\n return ok(code);\n }\n return nok(code);\n }\n}","/**\n * List of lowercase HTML “block” tag names.\n *\n * The list, when parsing HTML (flow), results in more relaxed rules (condition\n * 6).\n * Because they are known blocks, the HTML-like syntax doesn’t have to be\n * strictly parsed.\n * For tag names not in this list, a more strict algorithm (condition 7) is used\n * to detect whether the HTML-like syntax is seen as HTML (flow) or not.\n *\n * This is copied from:\n * .\n *\n * > 👉 **Note**: `search` was added in `CommonMark@0.31`.\n */\nexport const htmlBlockNames = [\n 'address',\n 'article',\n 'aside',\n 'base',\n 'basefont',\n 'blockquote',\n 'body',\n 'caption',\n 'center',\n 'col',\n 'colgroup',\n 'dd',\n 'details',\n 'dialog',\n 'dir',\n 'div',\n 'dl',\n 'dt',\n 'fieldset',\n 'figcaption',\n 'figure',\n 'footer',\n 'form',\n 'frame',\n 'frameset',\n 'h1',\n 'h2',\n 'h3',\n 'h4',\n 'h5',\n 'h6',\n 'head',\n 'header',\n 'hr',\n 'html',\n 'iframe',\n 'legend',\n 'li',\n 'link',\n 'main',\n 'menu',\n 'menuitem',\n 'nav',\n 'noframes',\n 'ol',\n 'optgroup',\n 'option',\n 'p',\n 'param',\n 'search',\n 'section',\n 'summary',\n 'table',\n 'tbody',\n 'td',\n 'tfoot',\n 'th',\n 'thead',\n 'title',\n 'tr',\n 'track',\n 'ul'\n]\n\n/**\n * List of lowercase HTML “raw” tag names.\n *\n * The list, when parsing HTML (flow), results in HTML that can include lines\n * without exiting, until a closing tag also in this list is found (condition\n * 1).\n *\n * This module is copied from:\n * .\n *\n * > 👉 **Note**: `textarea` was added in `CommonMark@0.30`.\n */\nexport const htmlRawNames = ['pre', 'script', 'style', 'textarea']\n","/**\n * @import {\n * Code,\n * Construct,\n * Resolver,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { asciiAlphanumeric, asciiAlpha, markdownLineEndingOrSpace, markdownLineEnding, markdownSpace } from 'micromark-util-character';\nimport { htmlBlockNames, htmlRawNames } from 'micromark-util-html-tag-name';\nimport { blankLine } from './blank-line.js';\n\n/** @type {Construct} */\nexport const htmlFlow = {\n concrete: true,\n name: 'htmlFlow',\n resolveTo: resolveToHtmlFlow,\n tokenize: tokenizeHtmlFlow\n};\n\n/** @type {Construct} */\nconst blankLineBefore = {\n partial: true,\n tokenize: tokenizeBlankLineBefore\n};\nconst nonLazyContinuationStart = {\n partial: true,\n tokenize: tokenizeNonLazyContinuationStart\n};\n\n/** @type {Resolver} */\nfunction resolveToHtmlFlow(events) {\n let index = events.length;\n while (index--) {\n if (events[index][0] === 'enter' && events[index][1].type === \"htmlFlow\") {\n break;\n }\n }\n if (index > 1 && events[index - 2][1].type === \"linePrefix\") {\n // Add the prefix start to the HTML token.\n events[index][1].start = events[index - 2][1].start;\n // Add the prefix start to the HTML line token.\n events[index + 1][1].start = events[index - 2][1].start;\n // Remove the line prefix.\n events.splice(index - 2, 2);\n }\n return events;\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeHtmlFlow(effects, ok, nok) {\n const self = this;\n /** @type {number} */\n let marker;\n /** @type {boolean} */\n let closingTag;\n /** @type {string} */\n let buffer;\n /** @type {number} */\n let index;\n /** @type {Code} */\n let markerB;\n return start;\n\n /**\n * Start of HTML (flow).\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n // To do: parse indent like `markdown-rs`.\n return before(code);\n }\n\n /**\n * At `<`, after optional whitespace.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function before(code) {\n effects.enter(\"htmlFlow\");\n effects.enter(\"htmlFlowData\");\n effects.consume(code);\n return open;\n }\n\n /**\n * After `<`, at tag name or other stuff.\n *\n * ```markdown\n * > | \n * ^\n * > | \n * ^\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function open(code) {\n if (code === 33) {\n effects.consume(code);\n return declarationOpen;\n }\n if (code === 47) {\n effects.consume(code);\n closingTag = true;\n return tagCloseStart;\n }\n if (code === 63) {\n effects.consume(code);\n marker = 3;\n // To do:\n // tokenizer.concrete = true\n // To do: use `markdown-rs` style interrupt.\n // While we’re in an instruction instead of a declaration, we’re on a `?`\n // right now, so we do need to search for `>`, similar to declarations.\n return self.interrupt ? ok : continuationDeclarationInside;\n }\n\n // ASCII alphabetical.\n if (asciiAlpha(code)) {\n // Always the case.\n effects.consume(code);\n buffer = String.fromCharCode(code);\n return tagName;\n }\n return nok(code);\n }\n\n /**\n * After ` | \n * ^\n * > | \n * ^\n * > | &<]]>\n * ^\n * ```\n *\n * @type {State}\n */\n function declarationOpen(code) {\n if (code === 45) {\n effects.consume(code);\n marker = 2;\n return commentOpenInside;\n }\n if (code === 91) {\n effects.consume(code);\n marker = 5;\n index = 0;\n return cdataOpenInside;\n }\n\n // ASCII alphabetical.\n if (asciiAlpha(code)) {\n effects.consume(code);\n marker = 4;\n // // Do not form containers.\n // tokenizer.concrete = true\n return self.interrupt ? ok : continuationDeclarationInside;\n }\n return nok(code);\n }\n\n /**\n * After ` | \n * ^\n * ```\n *\n * @type {State}\n */\n function commentOpenInside(code) {\n if (code === 45) {\n effects.consume(code);\n // // Do not form containers.\n // tokenizer.concrete = true\n return self.interrupt ? ok : continuationDeclarationInside;\n }\n return nok(code);\n }\n\n /**\n * After ` | &<]]>\n * ^^^^^^\n * ```\n *\n * @type {State}\n */\n function cdataOpenInside(code) {\n const value = \"CDATA[\";\n if (code === value.charCodeAt(index++)) {\n effects.consume(code);\n if (index === value.length) {\n // // Do not form containers.\n // tokenizer.concrete = true\n return self.interrupt ? ok : continuation;\n }\n return cdataOpenInside;\n }\n return nok(code);\n }\n\n /**\n * After ``, in closing tag, at tag name.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function tagCloseStart(code) {\n if (asciiAlpha(code)) {\n // Always the case.\n effects.consume(code);\n buffer = String.fromCharCode(code);\n return tagName;\n }\n return nok(code);\n }\n\n /**\n * In tag name.\n *\n * ```markdown\n * > | \n * ^^\n * > | \n * ^^\n * ```\n *\n * @type {State}\n */\n function tagName(code) {\n if (code === null || code === 47 || code === 62 || markdownLineEndingOrSpace(code)) {\n const slash = code === 47;\n const name = buffer.toLowerCase();\n if (!slash && !closingTag && htmlRawNames.includes(name)) {\n marker = 1;\n // // Do not form containers.\n // tokenizer.concrete = true\n return self.interrupt ? ok(code) : continuation(code);\n }\n if (htmlBlockNames.includes(buffer.toLowerCase())) {\n marker = 6;\n if (slash) {\n effects.consume(code);\n return basicSelfClosing;\n }\n\n // // Do not form containers.\n // tokenizer.concrete = true\n return self.interrupt ? ok(code) : continuation(code);\n }\n marker = 7;\n // Do not support complete HTML when interrupting.\n return self.interrupt && !self.parser.lazy[self.now().line] ? nok(code) : closingTag ? completeClosingTagAfter(code) : completeAttributeNameBefore(code);\n }\n\n // ASCII alphanumerical and `-`.\n if (code === 45 || asciiAlphanumeric(code)) {\n effects.consume(code);\n buffer += String.fromCharCode(code);\n return tagName;\n }\n return nok(code);\n }\n\n /**\n * After closing slash of a basic tag name.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function basicSelfClosing(code) {\n if (code === 62) {\n effects.consume(code);\n // // Do not form containers.\n // tokenizer.concrete = true\n return self.interrupt ? ok : continuation;\n }\n return nok(code);\n }\n\n /**\n * After closing slash of a complete tag name.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function completeClosingTagAfter(code) {\n if (markdownSpace(code)) {\n effects.consume(code);\n return completeClosingTagAfter;\n }\n return completeEnd(code);\n }\n\n /**\n * At an attribute name.\n *\n * At first, this state is used after a complete tag name, after whitespace,\n * where it expects optional attributes or the end of the tag.\n * It is also reused after attributes, when expecting more optional\n * attributes.\n *\n * ```markdown\n * > | \n * ^\n * > | \n * ^\n * > | \n * ^\n * > | \n * ^\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function completeAttributeNameBefore(code) {\n if (code === 47) {\n effects.consume(code);\n return completeEnd;\n }\n\n // ASCII alphanumerical and `:` and `_`.\n if (code === 58 || code === 95 || asciiAlpha(code)) {\n effects.consume(code);\n return completeAttributeName;\n }\n if (markdownSpace(code)) {\n effects.consume(code);\n return completeAttributeNameBefore;\n }\n return completeEnd(code);\n }\n\n /**\n * In attribute name.\n *\n * ```markdown\n * > | \n * ^\n * > | \n * ^\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function completeAttributeName(code) {\n // ASCII alphanumerical and `-`, `.`, `:`, and `_`.\n if (code === 45 || code === 46 || code === 58 || code === 95 || asciiAlphanumeric(code)) {\n effects.consume(code);\n return completeAttributeName;\n }\n return completeAttributeNameAfter(code);\n }\n\n /**\n * After attribute name, at an optional initializer, the end of the tag, or\n * whitespace.\n *\n * ```markdown\n * > | \n * ^\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function completeAttributeNameAfter(code) {\n if (code === 61) {\n effects.consume(code);\n return completeAttributeValueBefore;\n }\n if (markdownSpace(code)) {\n effects.consume(code);\n return completeAttributeNameAfter;\n }\n return completeAttributeNameBefore(code);\n }\n\n /**\n * Before unquoted, double quoted, or single quoted attribute value, allowing\n * whitespace.\n *\n * ```markdown\n * > | \n * ^\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function completeAttributeValueBefore(code) {\n if (code === null || code === 60 || code === 61 || code === 62 || code === 96) {\n return nok(code);\n }\n if (code === 34 || code === 39) {\n effects.consume(code);\n markerB = code;\n return completeAttributeValueQuoted;\n }\n if (markdownSpace(code)) {\n effects.consume(code);\n return completeAttributeValueBefore;\n }\n return completeAttributeValueUnquoted(code);\n }\n\n /**\n * In double or single quoted attribute value.\n *\n * ```markdown\n * > | \n * ^\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function completeAttributeValueQuoted(code) {\n if (code === markerB) {\n effects.consume(code);\n markerB = null;\n return completeAttributeValueQuotedAfter;\n }\n if (code === null || markdownLineEnding(code)) {\n return nok(code);\n }\n effects.consume(code);\n return completeAttributeValueQuoted;\n }\n\n /**\n * In unquoted attribute value.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function completeAttributeValueUnquoted(code) {\n if (code === null || code === 34 || code === 39 || code === 47 || code === 60 || code === 61 || code === 62 || code === 96 || markdownLineEndingOrSpace(code)) {\n return completeAttributeNameAfter(code);\n }\n effects.consume(code);\n return completeAttributeValueUnquoted;\n }\n\n /**\n * After double or single quoted attribute value, before whitespace or the\n * end of the tag.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function completeAttributeValueQuotedAfter(code) {\n if (code === 47 || code === 62 || markdownSpace(code)) {\n return completeAttributeNameBefore(code);\n }\n return nok(code);\n }\n\n /**\n * In certain circumstances of a complete tag where only an `>` is allowed.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function completeEnd(code) {\n if (code === 62) {\n effects.consume(code);\n return completeAfter;\n }\n return nok(code);\n }\n\n /**\n * After `>` in a complete tag.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function completeAfter(code) {\n if (code === null || markdownLineEnding(code)) {\n // // Do not form containers.\n // tokenizer.concrete = true\n return continuation(code);\n }\n if (markdownSpace(code)) {\n effects.consume(code);\n return completeAfter;\n }\n return nok(code);\n }\n\n /**\n * In continuation of any HTML kind.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function continuation(code) {\n if (code === 45 && marker === 2) {\n effects.consume(code);\n return continuationCommentInside;\n }\n if (code === 60 && marker === 1) {\n effects.consume(code);\n return continuationRawTagOpen;\n }\n if (code === 62 && marker === 4) {\n effects.consume(code);\n return continuationClose;\n }\n if (code === 63 && marker === 3) {\n effects.consume(code);\n return continuationDeclarationInside;\n }\n if (code === 93 && marker === 5) {\n effects.consume(code);\n return continuationCdataInside;\n }\n if (markdownLineEnding(code) && (marker === 6 || marker === 7)) {\n effects.exit(\"htmlFlowData\");\n return effects.check(blankLineBefore, continuationAfter, continuationStart)(code);\n }\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"htmlFlowData\");\n return continuationStart(code);\n }\n effects.consume(code);\n return continuation;\n }\n\n /**\n * In continuation, at eol.\n *\n * ```markdown\n * > | \n * ^\n * | asd\n * ```\n *\n * @type {State}\n */\n function continuationStart(code) {\n return effects.check(nonLazyContinuationStart, continuationStartNonLazy, continuationAfter)(code);\n }\n\n /**\n * In continuation, at eol, before non-lazy content.\n *\n * ```markdown\n * > | \n * ^\n * | asd\n * ```\n *\n * @type {State}\n */\n function continuationStartNonLazy(code) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return continuationBefore;\n }\n\n /**\n * In continuation, before non-lazy content.\n *\n * ```markdown\n * | \n * > | asd\n * ^\n * ```\n *\n * @type {State}\n */\n function continuationBefore(code) {\n if (code === null || markdownLineEnding(code)) {\n return continuationStart(code);\n }\n effects.enter(\"htmlFlowData\");\n return continuation(code);\n }\n\n /**\n * In comment continuation, after one `-`, expecting another.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function continuationCommentInside(code) {\n if (code === 45) {\n effects.consume(code);\n return continuationDeclarationInside;\n }\n return continuation(code);\n }\n\n /**\n * In raw continuation, after `<`, at `/`.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function continuationRawTagOpen(code) {\n if (code === 47) {\n effects.consume(code);\n buffer = '';\n return continuationRawEndTag;\n }\n return continuation(code);\n }\n\n /**\n * In raw continuation, after ``, in a raw tag name.\n *\n * ```markdown\n * > | \n * ^^^^^^\n * ```\n *\n * @type {State}\n */\n function continuationRawEndTag(code) {\n if (code === 62) {\n const name = buffer.toLowerCase();\n if (htmlRawNames.includes(name)) {\n effects.consume(code);\n return continuationClose;\n }\n return continuation(code);\n }\n if (asciiAlpha(code) && buffer.length < 8) {\n // Always the case.\n effects.consume(code);\n buffer += String.fromCharCode(code);\n return continuationRawEndTag;\n }\n return continuation(code);\n }\n\n /**\n * In cdata continuation, after `]`, expecting `]>`.\n *\n * ```markdown\n * > | &<]]>\n * ^\n * ```\n *\n * @type {State}\n */\n function continuationCdataInside(code) {\n if (code === 93) {\n effects.consume(code);\n return continuationDeclarationInside;\n }\n return continuation(code);\n }\n\n /**\n * In declaration or instruction continuation, at `>`.\n *\n * ```markdown\n * > | \n * ^\n * > | >\n * ^\n * > | \n * ^\n * > | \n * ^\n * > | &<]]>\n * ^\n * ```\n *\n * @type {State}\n */\n function continuationDeclarationInside(code) {\n if (code === 62) {\n effects.consume(code);\n return continuationClose;\n }\n\n // More dashes.\n if (code === 45 && marker === 2) {\n effects.consume(code);\n return continuationDeclarationInside;\n }\n return continuation(code);\n }\n\n /**\n * In closed continuation: everything we get until the eol/eof is part of it.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function continuationClose(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"htmlFlowData\");\n return continuationAfter(code);\n }\n effects.consume(code);\n return continuationClose;\n }\n\n /**\n * Done.\n *\n * ```markdown\n * > | \n * ^\n * ```\n *\n * @type {State}\n */\n function continuationAfter(code) {\n effects.exit(\"htmlFlow\");\n // // Feel free to interrupt.\n // tokenizer.interrupt = false\n // // No longer concrete.\n // tokenizer.concrete = false\n return ok(code);\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeNonLazyContinuationStart(effects, ok, nok) {\n const self = this;\n return start;\n\n /**\n * At eol, before continuation.\n *\n * ```markdown\n * > | * ```js\n * ^\n * | b\n * ```\n *\n * @type {State}\n */\n function start(code) {\n if (markdownLineEnding(code)) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return after;\n }\n return nok(code);\n }\n\n /**\n * A continuation.\n *\n * ```markdown\n * | * ```js\n * > | b\n * ^\n * ```\n *\n * @type {State}\n */\n function after(code) {\n return self.parser.lazy[self.now().line] ? nok(code) : ok(code);\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeBlankLineBefore(effects, ok, nok) {\n return start;\n\n /**\n * Before eol, expecting blank line.\n *\n * ```markdown\n * > | \n * ^\n * |\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return effects.attempt(blankLine, ok, nok);\n }\n}","/**\n * @import {\n * Code,\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { factorySpace } from 'micromark-factory-space';\nimport { markdownLineEnding, markdownSpace } from 'micromark-util-character';\n/** @type {Construct} */\nconst nonLazyContinuation = {\n partial: true,\n tokenize: tokenizeNonLazyContinuation\n};\n\n/** @type {Construct} */\nexport const codeFenced = {\n concrete: true,\n name: 'codeFenced',\n tokenize: tokenizeCodeFenced\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeCodeFenced(effects, ok, nok) {\n const self = this;\n /** @type {Construct} */\n const closeStart = {\n partial: true,\n tokenize: tokenizeCloseStart\n };\n let initialPrefix = 0;\n let sizeOpen = 0;\n /** @type {NonNullable} */\n let marker;\n return start;\n\n /**\n * Start of code.\n *\n * ```markdown\n * > | ~~~js\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function start(code) {\n // To do: parse whitespace like `markdown-rs`.\n return beforeSequenceOpen(code);\n }\n\n /**\n * In opening fence, after prefix, at sequence.\n *\n * ```markdown\n * > | ~~~js\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function beforeSequenceOpen(code) {\n const tail = self.events[self.events.length - 1];\n initialPrefix = tail && tail[1].type === \"linePrefix\" ? tail[2].sliceSerialize(tail[1], true).length : 0;\n marker = code;\n effects.enter(\"codeFenced\");\n effects.enter(\"codeFencedFence\");\n effects.enter(\"codeFencedFenceSequence\");\n return sequenceOpen(code);\n }\n\n /**\n * In opening fence sequence.\n *\n * ```markdown\n * > | ~~~js\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function sequenceOpen(code) {\n if (code === marker) {\n sizeOpen++;\n effects.consume(code);\n return sequenceOpen;\n }\n if (sizeOpen < 3) {\n return nok(code);\n }\n effects.exit(\"codeFencedFenceSequence\");\n return markdownSpace(code) ? factorySpace(effects, infoBefore, \"whitespace\")(code) : infoBefore(code);\n }\n\n /**\n * In opening fence, after the sequence (and optional whitespace), before info.\n *\n * ```markdown\n * > | ~~~js\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function infoBefore(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"codeFencedFence\");\n return self.interrupt ? ok(code) : effects.check(nonLazyContinuation, atNonLazyBreak, after)(code);\n }\n effects.enter(\"codeFencedFenceInfo\");\n effects.enter(\"chunkString\", {\n contentType: \"string\"\n });\n return info(code);\n }\n\n /**\n * In info.\n *\n * ```markdown\n * > | ~~~js\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function info(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"chunkString\");\n effects.exit(\"codeFencedFenceInfo\");\n return infoBefore(code);\n }\n if (markdownSpace(code)) {\n effects.exit(\"chunkString\");\n effects.exit(\"codeFencedFenceInfo\");\n return factorySpace(effects, metaBefore, \"whitespace\")(code);\n }\n if (code === 96 && code === marker) {\n return nok(code);\n }\n effects.consume(code);\n return info;\n }\n\n /**\n * In opening fence, after info and whitespace, before meta.\n *\n * ```markdown\n * > | ~~~js eval\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function metaBefore(code) {\n if (code === null || markdownLineEnding(code)) {\n return infoBefore(code);\n }\n effects.enter(\"codeFencedFenceMeta\");\n effects.enter(\"chunkString\", {\n contentType: \"string\"\n });\n return meta(code);\n }\n\n /**\n * In meta.\n *\n * ```markdown\n * > | ~~~js eval\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function meta(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"chunkString\");\n effects.exit(\"codeFencedFenceMeta\");\n return infoBefore(code);\n }\n if (code === 96 && code === marker) {\n return nok(code);\n }\n effects.consume(code);\n return meta;\n }\n\n /**\n * At eol/eof in code, before a non-lazy closing fence or content.\n *\n * ```markdown\n * > | ~~~js\n * ^\n * > | alert(1)\n * ^\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function atNonLazyBreak(code) {\n return effects.attempt(closeStart, after, contentBefore)(code);\n }\n\n /**\n * Before code content, not a closing fence, at eol.\n *\n * ```markdown\n * | ~~~js\n * > | alert(1)\n * ^\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function contentBefore(code) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return contentStart;\n }\n\n /**\n * Before code content, not a closing fence.\n *\n * ```markdown\n * | ~~~js\n * > | alert(1)\n * ^\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function contentStart(code) {\n return initialPrefix > 0 && markdownSpace(code) ? factorySpace(effects, beforeContentChunk, \"linePrefix\", initialPrefix + 1)(code) : beforeContentChunk(code);\n }\n\n /**\n * Before code content, after optional prefix.\n *\n * ```markdown\n * | ~~~js\n * > | alert(1)\n * ^\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function beforeContentChunk(code) {\n if (code === null || markdownLineEnding(code)) {\n return effects.check(nonLazyContinuation, atNonLazyBreak, after)(code);\n }\n effects.enter(\"codeFlowValue\");\n return contentChunk(code);\n }\n\n /**\n * In code content.\n *\n * ```markdown\n * | ~~~js\n * > | alert(1)\n * ^^^^^^^^\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function contentChunk(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"codeFlowValue\");\n return beforeContentChunk(code);\n }\n effects.consume(code);\n return contentChunk;\n }\n\n /**\n * After code.\n *\n * ```markdown\n * | ~~~js\n * | alert(1)\n * > | ~~~\n * ^\n * ```\n *\n * @type {State}\n */\n function after(code) {\n effects.exit(\"codeFenced\");\n return ok(code);\n }\n\n /**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\n function tokenizeCloseStart(effects, ok, nok) {\n let size = 0;\n return startBefore;\n\n /**\n *\n *\n * @type {State}\n */\n function startBefore(code) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return start;\n }\n\n /**\n * Before closing fence, at optional whitespace.\n *\n * ```markdown\n * | ~~~js\n * | alert(1)\n * > | ~~~\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n // Always populated by defaults.\n\n // To do: `enter` here or in next state?\n effects.enter(\"codeFencedFence\");\n return markdownSpace(code) ? factorySpace(effects, beforeSequenceClose, \"linePrefix\", self.parser.constructs.disable.null.includes('codeIndented') ? undefined : 4)(code) : beforeSequenceClose(code);\n }\n\n /**\n * In closing fence, after optional whitespace, at sequence.\n *\n * ```markdown\n * | ~~~js\n * | alert(1)\n * > | ~~~\n * ^\n * ```\n *\n * @type {State}\n */\n function beforeSequenceClose(code) {\n if (code === marker) {\n effects.enter(\"codeFencedFenceSequence\");\n return sequenceClose(code);\n }\n return nok(code);\n }\n\n /**\n * In closing fence sequence.\n *\n * ```markdown\n * | ~~~js\n * | alert(1)\n * > | ~~~\n * ^\n * ```\n *\n * @type {State}\n */\n function sequenceClose(code) {\n if (code === marker) {\n size++;\n effects.consume(code);\n return sequenceClose;\n }\n if (size >= sizeOpen) {\n effects.exit(\"codeFencedFenceSequence\");\n return markdownSpace(code) ? factorySpace(effects, sequenceCloseAfter, \"whitespace\")(code) : sequenceCloseAfter(code);\n }\n return nok(code);\n }\n\n /**\n * After closing fence sequence, after optional whitespace.\n *\n * ```markdown\n * | ~~~js\n * | alert(1)\n * > | ~~~\n * ^\n * ```\n *\n * @type {State}\n */\n function sequenceCloseAfter(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"codeFencedFence\");\n return ok(code);\n }\n return nok(code);\n }\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeNonLazyContinuation(effects, ok, nok) {\n const self = this;\n return start;\n\n /**\n *\n *\n * @type {State}\n */\n function start(code) {\n if (code === null) {\n return nok(code);\n }\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return lineStart;\n }\n\n /**\n *\n *\n * @type {State}\n */\n function lineStart(code) {\n return self.parser.lazy[self.now().line] ? nok(code) : ok(code);\n }\n}","/// \n\n/* eslint-env browser */\n\nconst element = document.createElement('i')\n\n/**\n * @param {string} value\n * @returns {string | false}\n */\nexport function decodeNamedCharacterReference(value) {\n const characterReference = '&' + value + ';'\n element.innerHTML = characterReference\n const character = element.textContent\n\n // Some named character references do not require the closing semicolon\n // (`¬`, for instance), which leads to situations where parsing the assumed\n // named reference of `¬it;` will result in the string `¬it;`.\n // When we encounter a trailing semicolon after parsing, and the character\n // reference to decode was not a semicolon (`;`), we can assume that the\n // matching was not complete.\n if (\n // @ts-expect-error: TypeScript is wrong that `textContent` on elements can\n // yield `null`.\n character.charCodeAt(character.length - 1) === 59 /* `;` */ &&\n value !== 'semi'\n ) {\n return false\n }\n\n // If the decoded string is equal to the input, the character reference was\n // not valid.\n // @ts-expect-error: TypeScript is wrong that `textContent` on elements can\n // yield `null`.\n return character === characterReference ? false : character\n}\n","/**\n * @import {\n * Code,\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { decodeNamedCharacterReference } from 'decode-named-character-reference';\nimport { asciiAlphanumeric, asciiDigit, asciiHexDigit } from 'micromark-util-character';\n/** @type {Construct} */\nexport const characterReference = {\n name: 'characterReference',\n tokenize: tokenizeCharacterReference\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeCharacterReference(effects, ok, nok) {\n const self = this;\n let size = 0;\n /** @type {number} */\n let max;\n /** @type {(code: Code) => boolean} */\n let test;\n return start;\n\n /**\n * Start of character reference.\n *\n * ```markdown\n * > | a&b\n * ^\n * > | a{b\n * ^\n * > | a b\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"characterReference\");\n effects.enter(\"characterReferenceMarker\");\n effects.consume(code);\n effects.exit(\"characterReferenceMarker\");\n return open;\n }\n\n /**\n * After `&`, at `#` for numeric references or alphanumeric for named\n * references.\n *\n * ```markdown\n * > | a&b\n * ^\n * > | a{b\n * ^\n * > | a b\n * ^\n * ```\n *\n * @type {State}\n */\n function open(code) {\n if (code === 35) {\n effects.enter(\"characterReferenceMarkerNumeric\");\n effects.consume(code);\n effects.exit(\"characterReferenceMarkerNumeric\");\n return numeric;\n }\n effects.enter(\"characterReferenceValue\");\n max = 31;\n test = asciiAlphanumeric;\n return value(code);\n }\n\n /**\n * After `#`, at `x` for hexadecimals or digit for decimals.\n *\n * ```markdown\n * > | a{b\n * ^\n * > | a b\n * ^\n * ```\n *\n * @type {State}\n */\n function numeric(code) {\n if (code === 88 || code === 120) {\n effects.enter(\"characterReferenceMarkerHexadecimal\");\n effects.consume(code);\n effects.exit(\"characterReferenceMarkerHexadecimal\");\n effects.enter(\"characterReferenceValue\");\n max = 6;\n test = asciiHexDigit;\n return value;\n }\n effects.enter(\"characterReferenceValue\");\n max = 7;\n test = asciiDigit;\n return value(code);\n }\n\n /**\n * After markers (``, ``, or `&`), in value, before `;`.\n *\n * The character reference kind defines what and how many characters are\n * allowed.\n *\n * ```markdown\n * > | a&b\n * ^^^\n * > | a{b\n * ^^^\n * > | a b\n * ^\n * ```\n *\n * @type {State}\n */\n function value(code) {\n if (code === 59 && size) {\n const token = effects.exit(\"characterReferenceValue\");\n if (test === asciiAlphanumeric && !decodeNamedCharacterReference(self.sliceSerialize(token))) {\n return nok(code);\n }\n\n // To do: `markdown-rs` uses a different name:\n // `CharacterReferenceMarkerSemi`.\n effects.enter(\"characterReferenceMarker\");\n effects.consume(code);\n effects.exit(\"characterReferenceMarker\");\n effects.exit(\"characterReference\");\n return ok;\n }\n if (test(code) && size++ < max) {\n effects.consume(code);\n return value;\n }\n return nok(code);\n }\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { asciiPunctuation } from 'micromark-util-character';\n/** @type {Construct} */\nexport const characterEscape = {\n name: 'characterEscape',\n tokenize: tokenizeCharacterEscape\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeCharacterEscape(effects, ok, nok) {\n return start;\n\n /**\n * Start of character escape.\n *\n * ```markdown\n * > | a\\*b\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"characterEscape\");\n effects.enter(\"escapeMarker\");\n effects.consume(code);\n effects.exit(\"escapeMarker\");\n return inside;\n }\n\n /**\n * After `\\`, at punctuation.\n *\n * ```markdown\n * > | a\\*b\n * ^\n * ```\n *\n * @type {State}\n */\n function inside(code) {\n // ASCII punctuation.\n if (asciiPunctuation(code)) {\n effects.enter(\"characterEscapeValue\");\n effects.consume(code);\n effects.exit(\"characterEscapeValue\");\n effects.exit(\"characterEscape\");\n return ok;\n }\n return nok(code);\n }\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { factorySpace } from 'micromark-factory-space';\nimport { markdownLineEnding } from 'micromark-util-character';\n/** @type {Construct} */\nexport const lineEnding = {\n name: 'lineEnding',\n tokenize: tokenizeLineEnding\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeLineEnding(effects, ok) {\n return start;\n\n /** @type {State} */\n function start(code) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return factorySpace(effects, ok, \"linePrefix\");\n }\n}","/**\n * @import {\n * Construct,\n * Event,\n * Resolver,\n * State,\n * TokenizeContext,\n * Tokenizer,\n * Token\n * } from 'micromark-util-types'\n */\n\nimport { factoryDestination } from 'micromark-factory-destination';\nimport { factoryLabel } from 'micromark-factory-label';\nimport { factoryTitle } from 'micromark-factory-title';\nimport { factoryWhitespace } from 'micromark-factory-whitespace';\nimport { markdownLineEndingOrSpace } from 'micromark-util-character';\nimport { push, splice } from 'micromark-util-chunked';\nimport { normalizeIdentifier } from 'micromark-util-normalize-identifier';\nimport { resolveAll } from 'micromark-util-resolve-all';\n/** @type {Construct} */\nexport const labelEnd = {\n name: 'labelEnd',\n resolveAll: resolveAllLabelEnd,\n resolveTo: resolveToLabelEnd,\n tokenize: tokenizeLabelEnd\n};\n\n/** @type {Construct} */\nconst resourceConstruct = {\n tokenize: tokenizeResource\n};\n/** @type {Construct} */\nconst referenceFullConstruct = {\n tokenize: tokenizeReferenceFull\n};\n/** @type {Construct} */\nconst referenceCollapsedConstruct = {\n tokenize: tokenizeReferenceCollapsed\n};\n\n/** @type {Resolver} */\nfunction resolveAllLabelEnd(events) {\n let index = -1;\n /** @type {Array} */\n const newEvents = [];\n while (++index < events.length) {\n const token = events[index][1];\n newEvents.push(events[index]);\n if (token.type === \"labelImage\" || token.type === \"labelLink\" || token.type === \"labelEnd\") {\n // Remove the marker.\n const offset = token.type === \"labelImage\" ? 4 : 2;\n token.type = \"data\";\n index += offset;\n }\n }\n\n // If the events are equal, we don't have to copy newEvents to events\n if (events.length !== newEvents.length) {\n splice(events, 0, events.length, newEvents);\n }\n return events;\n}\n\n/** @type {Resolver} */\nfunction resolveToLabelEnd(events, context) {\n let index = events.length;\n let offset = 0;\n /** @type {Token} */\n let token;\n /** @type {number | undefined} */\n let open;\n /** @type {number | undefined} */\n let close;\n /** @type {Array} */\n let media;\n\n // Find an opening.\n while (index--) {\n token = events[index][1];\n if (open) {\n // If we see another link, or inactive link label, we’ve been here before.\n if (token.type === \"link\" || token.type === \"labelLink\" && token._inactive) {\n break;\n }\n\n // Mark other link openings as inactive, as we can’t have links in\n // links.\n if (events[index][0] === 'enter' && token.type === \"labelLink\") {\n token._inactive = true;\n }\n } else if (close) {\n if (events[index][0] === 'enter' && (token.type === \"labelImage\" || token.type === \"labelLink\") && !token._balanced) {\n open = index;\n if (token.type !== \"labelLink\") {\n offset = 2;\n break;\n }\n }\n } else if (token.type === \"labelEnd\") {\n close = index;\n }\n }\n const group = {\n type: events[open][1].type === \"labelLink\" ? \"link\" : \"image\",\n start: {\n ...events[open][1].start\n },\n end: {\n ...events[events.length - 1][1].end\n }\n };\n const label = {\n type: \"label\",\n start: {\n ...events[open][1].start\n },\n end: {\n ...events[close][1].end\n }\n };\n const text = {\n type: \"labelText\",\n start: {\n ...events[open + offset + 2][1].end\n },\n end: {\n ...events[close - 2][1].start\n }\n };\n media = [['enter', group, context], ['enter', label, context]];\n\n // Opening marker.\n media = push(media, events.slice(open + 1, open + offset + 3));\n\n // Text open.\n media = push(media, [['enter', text, context]]);\n\n // Always populated by defaults.\n\n // Between.\n media = push(media, resolveAll(context.parser.constructs.insideSpan.null, events.slice(open + offset + 4, close - 3), context));\n\n // Text close, marker close, label close.\n media = push(media, [['exit', text, context], events[close - 2], events[close - 1], ['exit', label, context]]);\n\n // Reference, resource, or so.\n media = push(media, events.slice(close + 1));\n\n // Media close.\n media = push(media, [['exit', group, context]]);\n splice(events, open, events.length, media);\n return events;\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeLabelEnd(effects, ok, nok) {\n const self = this;\n let index = self.events.length;\n /** @type {Token} */\n let labelStart;\n /** @type {boolean} */\n let defined;\n\n // Find an opening.\n while (index--) {\n if ((self.events[index][1].type === \"labelImage\" || self.events[index][1].type === \"labelLink\") && !self.events[index][1]._balanced) {\n labelStart = self.events[index][1];\n break;\n }\n }\n return start;\n\n /**\n * Start of label end.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * > | [a][b] c\n * ^\n * > | [a][] b\n * ^\n * > | [a] b\n * ```\n *\n * @type {State}\n */\n function start(code) {\n // If there is not an okay opening.\n if (!labelStart) {\n return nok(code);\n }\n\n // If the corresponding label (link) start is marked as inactive,\n // it means we’d be wrapping a link, like this:\n //\n // ```markdown\n // > | a [b [c](d) e](f) g.\n // ^\n // ```\n //\n // We can’t have that, so it’s just balanced brackets.\n if (labelStart._inactive) {\n return labelEndNok(code);\n }\n defined = self.parser.defined.includes(normalizeIdentifier(self.sliceSerialize({\n start: labelStart.end,\n end: self.now()\n })));\n effects.enter(\"labelEnd\");\n effects.enter(\"labelMarker\");\n effects.consume(code);\n effects.exit(\"labelMarker\");\n effects.exit(\"labelEnd\");\n return after;\n }\n\n /**\n * After `]`.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * > | [a][b] c\n * ^\n * > | [a][] b\n * ^\n * > | [a] b\n * ^\n * ```\n *\n * @type {State}\n */\n function after(code) {\n // Note: `markdown-rs` also parses GFM footnotes here, which for us is in\n // an extension.\n\n // Resource (`[asd](fgh)`)?\n if (code === 40) {\n return effects.attempt(resourceConstruct, labelEndOk, defined ? labelEndOk : labelEndNok)(code);\n }\n\n // Full (`[asd][fgh]`) or collapsed (`[asd][]`) reference?\n if (code === 91) {\n return effects.attempt(referenceFullConstruct, labelEndOk, defined ? referenceNotFull : labelEndNok)(code);\n }\n\n // Shortcut (`[asd]`) reference?\n return defined ? labelEndOk(code) : labelEndNok(code);\n }\n\n /**\n * After `]`, at `[`, but not at a full reference.\n *\n * > 👉 **Note**: we only get here if the label is defined.\n *\n * ```markdown\n * > | [a][] b\n * ^\n * > | [a] b\n * ^\n * ```\n *\n * @type {State}\n */\n function referenceNotFull(code) {\n return effects.attempt(referenceCollapsedConstruct, labelEndOk, labelEndNok)(code);\n }\n\n /**\n * Done, we found something.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * > | [a][b] c\n * ^\n * > | [a][] b\n * ^\n * > | [a] b\n * ^\n * ```\n *\n * @type {State}\n */\n function labelEndOk(code) {\n // Note: `markdown-rs` does a bunch of stuff here.\n return ok(code);\n }\n\n /**\n * Done, it’s nothing.\n *\n * There was an okay opening, but we didn’t match anything.\n *\n * ```markdown\n * > | [a](b c\n * ^\n * > | [a][b c\n * ^\n * > | [a] b\n * ^\n * ```\n *\n * @type {State}\n */\n function labelEndNok(code) {\n labelStart._balanced = true;\n return nok(code);\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeResource(effects, ok, nok) {\n return resourceStart;\n\n /**\n * At a resource.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceStart(code) {\n effects.enter(\"resource\");\n effects.enter(\"resourceMarker\");\n effects.consume(code);\n effects.exit(\"resourceMarker\");\n return resourceBefore;\n }\n\n /**\n * In resource, after `(`, at optional whitespace.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceBefore(code) {\n return markdownLineEndingOrSpace(code) ? factoryWhitespace(effects, resourceOpen)(code) : resourceOpen(code);\n }\n\n /**\n * In resource, after optional whitespace, at `)` or a destination.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceOpen(code) {\n if (code === 41) {\n return resourceEnd(code);\n }\n return factoryDestination(effects, resourceDestinationAfter, resourceDestinationMissing, \"resourceDestination\", \"resourceDestinationLiteral\", \"resourceDestinationLiteralMarker\", \"resourceDestinationRaw\", \"resourceDestinationString\", 32)(code);\n }\n\n /**\n * In resource, after destination, at optional whitespace.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceDestinationAfter(code) {\n return markdownLineEndingOrSpace(code) ? factoryWhitespace(effects, resourceBetween)(code) : resourceEnd(code);\n }\n\n /**\n * At invalid destination.\n *\n * ```markdown\n * > | [a](<<) b\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceDestinationMissing(code) {\n return nok(code);\n }\n\n /**\n * In resource, after destination and whitespace, at `(` or title.\n *\n * ```markdown\n * > | [a](b ) c\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceBetween(code) {\n if (code === 34 || code === 39 || code === 40) {\n return factoryTitle(effects, resourceTitleAfter, nok, \"resourceTitle\", \"resourceTitleMarker\", \"resourceTitleString\")(code);\n }\n return resourceEnd(code);\n }\n\n /**\n * In resource, after title, at optional whitespace.\n *\n * ```markdown\n * > | [a](b \"c\") d\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceTitleAfter(code) {\n return markdownLineEndingOrSpace(code) ? factoryWhitespace(effects, resourceEnd)(code) : resourceEnd(code);\n }\n\n /**\n * In resource, at `)`.\n *\n * ```markdown\n * > | [a](b) d\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceEnd(code) {\n if (code === 41) {\n effects.enter(\"resourceMarker\");\n effects.consume(code);\n effects.exit(\"resourceMarker\");\n effects.exit(\"resource\");\n return ok;\n }\n return nok(code);\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeReferenceFull(effects, ok, nok) {\n const self = this;\n return referenceFull;\n\n /**\n * In a reference (full), at the `[`.\n *\n * ```markdown\n * > | [a][b] d\n * ^\n * ```\n *\n * @type {State}\n */\n function referenceFull(code) {\n return factoryLabel.call(self, effects, referenceFullAfter, referenceFullMissing, \"reference\", \"referenceMarker\", \"referenceString\")(code);\n }\n\n /**\n * In a reference (full), after `]`.\n *\n * ```markdown\n * > | [a][b] d\n * ^\n * ```\n *\n * @type {State}\n */\n function referenceFullAfter(code) {\n return self.parser.defined.includes(normalizeIdentifier(self.sliceSerialize(self.events[self.events.length - 1][1]).slice(1, -1))) ? ok(code) : nok(code);\n }\n\n /**\n * In reference (full) that was missing.\n *\n * ```markdown\n * > | [a][b d\n * ^\n * ```\n *\n * @type {State}\n */\n function referenceFullMissing(code) {\n return nok(code);\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeReferenceCollapsed(effects, ok, nok) {\n return referenceCollapsedStart;\n\n /**\n * In reference (collapsed), at `[`.\n *\n * > 👉 **Note**: we only get here if the label is defined.\n *\n * ```markdown\n * > | [a][] d\n * ^\n * ```\n *\n * @type {State}\n */\n function referenceCollapsedStart(code) {\n // We only attempt a collapsed label if there’s a `[`.\n\n effects.enter(\"reference\");\n effects.enter(\"referenceMarker\");\n effects.consume(code);\n effects.exit(\"referenceMarker\");\n return referenceCollapsedOpen;\n }\n\n /**\n * In reference (collapsed), at `]`.\n *\n * > 👉 **Note**: we only get here if the label is defined.\n *\n * ```markdown\n * > | [a][] d\n * ^\n * ```\n *\n * @type {State}\n */\n function referenceCollapsedOpen(code) {\n if (code === 93) {\n effects.enter(\"referenceMarker\");\n effects.consume(code);\n effects.exit(\"referenceMarker\");\n effects.exit(\"reference\");\n return ok;\n }\n return nok(code);\n }\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { labelEnd } from './label-end.js';\n\n/** @type {Construct} */\nexport const labelStartImage = {\n name: 'labelStartImage',\n resolveAll: labelEnd.resolveAll,\n tokenize: tokenizeLabelStartImage\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeLabelStartImage(effects, ok, nok) {\n const self = this;\n return start;\n\n /**\n * Start of label (image) start.\n *\n * ```markdown\n * > | a ![b] c\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"labelImage\");\n effects.enter(\"labelImageMarker\");\n effects.consume(code);\n effects.exit(\"labelImageMarker\");\n return open;\n }\n\n /**\n * After `!`, at `[`.\n *\n * ```markdown\n * > | a ![b] c\n * ^\n * ```\n *\n * @type {State}\n */\n function open(code) {\n if (code === 91) {\n effects.enter(\"labelMarker\");\n effects.consume(code);\n effects.exit(\"labelMarker\");\n effects.exit(\"labelImage\");\n return after;\n }\n return nok(code);\n }\n\n /**\n * After `![`.\n *\n * ```markdown\n * > | a ![b] c\n * ^\n * ```\n *\n * This is needed in because, when GFM footnotes are enabled, images never\n * form when started with a `^`.\n * Instead, links form:\n *\n * ```markdown\n * \n *\n * ![^a][b]\n *\n * [b]: c\n * ```\n *\n * ```html\n * !^a
\n * !^a
\n * ```\n *\n * @type {State}\n */\n function after(code) {\n // To do: use a new field to do this, this is still needed for\n // `micromark-extension-gfm-footnote`, but the `label-start-link`\n // behavior isn’t.\n // Hidden footnotes hook.\n /* c8 ignore next 3 */\n return code === 94 && '_hiddenFootnoteSupport' in self.parser.constructs ? nok(code) : ok(code);\n }\n}","/**\n * @import {\n * Code,\n * Construct,\n * Event,\n * Point,\n * Resolver,\n * State,\n * TokenizeContext,\n * Tokenizer,\n * Token\n * } from 'micromark-util-types'\n */\n\nimport { push, splice } from 'micromark-util-chunked';\nimport { classifyCharacter } from 'micromark-util-classify-character';\nimport { resolveAll } from 'micromark-util-resolve-all';\n/** @type {Construct} */\nexport const attention = {\n name: 'attention',\n resolveAll: resolveAllAttention,\n tokenize: tokenizeAttention\n};\n\n/**\n * Take all events and resolve attention to emphasis or strong.\n *\n * @type {Resolver}\n */\n// eslint-disable-next-line complexity\nfunction resolveAllAttention(events, context) {\n let index = -1;\n /** @type {number} */\n let open;\n /** @type {Token} */\n let group;\n /** @type {Token} */\n let text;\n /** @type {Token} */\n let openingSequence;\n /** @type {Token} */\n let closingSequence;\n /** @type {number} */\n let use;\n /** @type {Array} */\n let nextEvents;\n /** @type {number} */\n let offset;\n\n // Walk through all events.\n //\n // Note: performance of this is fine on an mb of normal markdown, but it’s\n // a bottleneck for malicious stuff.\n while (++index < events.length) {\n // Find a token that can close.\n if (events[index][0] === 'enter' && events[index][1].type === 'attentionSequence' && events[index][1]._close) {\n open = index;\n\n // Now walk back to find an opener.\n while (open--) {\n // Find a token that can open the closer.\n if (events[open][0] === 'exit' && events[open][1].type === 'attentionSequence' && events[open][1]._open &&\n // If the markers are the same:\n context.sliceSerialize(events[open][1]).charCodeAt(0) === context.sliceSerialize(events[index][1]).charCodeAt(0)) {\n // If the opening can close or the closing can open,\n // and the close size *is not* a multiple of three,\n // but the sum of the opening and closing size *is* multiple of three,\n // then don’t match.\n if ((events[open][1]._close || events[index][1]._open) && (events[index][1].end.offset - events[index][1].start.offset) % 3 && !((events[open][1].end.offset - events[open][1].start.offset + events[index][1].end.offset - events[index][1].start.offset) % 3)) {\n continue;\n }\n\n // Number of markers to use from the sequence.\n use = events[open][1].end.offset - events[open][1].start.offset > 1 && events[index][1].end.offset - events[index][1].start.offset > 1 ? 2 : 1;\n const start = {\n ...events[open][1].end\n };\n const end = {\n ...events[index][1].start\n };\n movePoint(start, -use);\n movePoint(end, use);\n openingSequence = {\n type: use > 1 ? \"strongSequence\" : \"emphasisSequence\",\n start,\n end: {\n ...events[open][1].end\n }\n };\n closingSequence = {\n type: use > 1 ? \"strongSequence\" : \"emphasisSequence\",\n start: {\n ...events[index][1].start\n },\n end\n };\n text = {\n type: use > 1 ? \"strongText\" : \"emphasisText\",\n start: {\n ...events[open][1].end\n },\n end: {\n ...events[index][1].start\n }\n };\n group = {\n type: use > 1 ? \"strong\" : \"emphasis\",\n start: {\n ...openingSequence.start\n },\n end: {\n ...closingSequence.end\n }\n };\n events[open][1].end = {\n ...openingSequence.start\n };\n events[index][1].start = {\n ...closingSequence.end\n };\n nextEvents = [];\n\n // If there are more markers in the opening, add them before.\n if (events[open][1].end.offset - events[open][1].start.offset) {\n nextEvents = push(nextEvents, [['enter', events[open][1], context], ['exit', events[open][1], context]]);\n }\n\n // Opening.\n nextEvents = push(nextEvents, [['enter', group, context], ['enter', openingSequence, context], ['exit', openingSequence, context], ['enter', text, context]]);\n\n // Always populated by defaults.\n\n // Between.\n nextEvents = push(nextEvents, resolveAll(context.parser.constructs.insideSpan.null, events.slice(open + 1, index), context));\n\n // Closing.\n nextEvents = push(nextEvents, [['exit', text, context], ['enter', closingSequence, context], ['exit', closingSequence, context], ['exit', group, context]]);\n\n // If there are more markers in the closing, add them after.\n if (events[index][1].end.offset - events[index][1].start.offset) {\n offset = 2;\n nextEvents = push(nextEvents, [['enter', events[index][1], context], ['exit', events[index][1], context]]);\n } else {\n offset = 0;\n }\n splice(events, open - 1, index - open + 3, nextEvents);\n index = open + nextEvents.length - offset - 2;\n break;\n }\n }\n }\n }\n\n // Remove remaining sequences.\n index = -1;\n while (++index < events.length) {\n if (events[index][1].type === 'attentionSequence') {\n events[index][1].type = 'data';\n }\n }\n return events;\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeAttention(effects, ok) {\n const attentionMarkers = this.parser.constructs.attentionMarkers.null;\n const previous = this.previous;\n const before = classifyCharacter(previous);\n\n /** @type {NonNullable} */\n let marker;\n return start;\n\n /**\n * Before a sequence.\n *\n * ```markdown\n * > | **\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n marker = code;\n effects.enter('attentionSequence');\n return inside(code);\n }\n\n /**\n * In a sequence.\n *\n * ```markdown\n * > | **\n * ^^\n * ```\n *\n * @type {State}\n */\n function inside(code) {\n if (code === marker) {\n effects.consume(code);\n return inside;\n }\n const token = effects.exit('attentionSequence');\n\n // To do: next major: move this to resolver, just like `markdown-rs`.\n const after = classifyCharacter(code);\n\n // Always populated by defaults.\n\n const open = !after || after === 2 && before || attentionMarkers.includes(code);\n const close = !before || before === 2 && after || attentionMarkers.includes(previous);\n token._open = Boolean(marker === 42 ? open : open && (before || !close));\n token._close = Boolean(marker === 42 ? close : close && (after || !open));\n return ok(code);\n }\n}\n\n/**\n * Move a point a bit.\n *\n * Note: `move` only works inside lines! It’s not possible to move past other\n * chunks (replacement characters, tabs, or line endings).\n *\n * @param {Point} point\n * Point.\n * @param {number} offset\n * Amount to move.\n * @returns {undefined}\n * Nothing.\n */\nfunction movePoint(point, offset) {\n point.column += offset;\n point.offset += offset;\n point._bufferIndex += offset;\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { asciiAlphanumeric, asciiAlpha, asciiAtext, asciiControl } from 'micromark-util-character';\n/** @type {Construct} */\nexport const autolink = {\n name: 'autolink',\n tokenize: tokenizeAutolink\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeAutolink(effects, ok, nok) {\n let size = 0;\n return start;\n\n /**\n * Start of an autolink.\n *\n * ```markdown\n * > | ab\n * ^\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"autolink\");\n effects.enter(\"autolinkMarker\");\n effects.consume(code);\n effects.exit(\"autolinkMarker\");\n effects.enter(\"autolinkProtocol\");\n return open;\n }\n\n /**\n * After `<`, at protocol or atext.\n *\n * ```markdown\n * > | ab\n * ^\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function open(code) {\n if (asciiAlpha(code)) {\n effects.consume(code);\n return schemeOrEmailAtext;\n }\n if (code === 64) {\n return nok(code);\n }\n return emailAtext(code);\n }\n\n /**\n * At second byte of protocol or atext.\n *\n * ```markdown\n * > | ab\n * ^\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function schemeOrEmailAtext(code) {\n // ASCII alphanumeric and `+`, `-`, and `.`.\n if (code === 43 || code === 45 || code === 46 || asciiAlphanumeric(code)) {\n // Count the previous alphabetical from `open` too.\n size = 1;\n return schemeInsideOrEmailAtext(code);\n }\n return emailAtext(code);\n }\n\n /**\n * In ambiguous protocol or atext.\n *\n * ```markdown\n * > | ab\n * ^\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function schemeInsideOrEmailAtext(code) {\n if (code === 58) {\n effects.consume(code);\n size = 0;\n return urlInside;\n }\n\n // ASCII alphanumeric and `+`, `-`, and `.`.\n if ((code === 43 || code === 45 || code === 46 || asciiAlphanumeric(code)) && size++ < 32) {\n effects.consume(code);\n return schemeInsideOrEmailAtext;\n }\n size = 0;\n return emailAtext(code);\n }\n\n /**\n * After protocol, in URL.\n *\n * ```markdown\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function urlInside(code) {\n if (code === 62) {\n effects.exit(\"autolinkProtocol\");\n effects.enter(\"autolinkMarker\");\n effects.consume(code);\n effects.exit(\"autolinkMarker\");\n effects.exit(\"autolink\");\n return ok;\n }\n\n // ASCII control, space, or `<`.\n if (code === null || code === 32 || code === 60 || asciiControl(code)) {\n return nok(code);\n }\n effects.consume(code);\n return urlInside;\n }\n\n /**\n * In email atext.\n *\n * ```markdown\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function emailAtext(code) {\n if (code === 64) {\n effects.consume(code);\n return emailAtSignOrDot;\n }\n if (asciiAtext(code)) {\n effects.consume(code);\n return emailAtext;\n }\n return nok(code);\n }\n\n /**\n * In label, after at-sign or dot.\n *\n * ```markdown\n * > | ab\n * ^ ^\n * ```\n *\n * @type {State}\n */\n function emailAtSignOrDot(code) {\n return asciiAlphanumeric(code) ? emailLabel(code) : nok(code);\n }\n\n /**\n * In label, where `.` and `>` are allowed.\n *\n * ```markdown\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function emailLabel(code) {\n if (code === 46) {\n effects.consume(code);\n size = 0;\n return emailAtSignOrDot;\n }\n if (code === 62) {\n // Exit, then change the token type.\n effects.exit(\"autolinkProtocol\").type = \"autolinkEmail\";\n effects.enter(\"autolinkMarker\");\n effects.consume(code);\n effects.exit(\"autolinkMarker\");\n effects.exit(\"autolink\");\n return ok;\n }\n return emailValue(code);\n }\n\n /**\n * In label, where `.` and `>` are *not* allowed.\n *\n * Though, this is also used in `emailLabel` to parse other values.\n *\n * ```markdown\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function emailValue(code) {\n // ASCII alphanumeric or `-`.\n if ((code === 45 || asciiAlphanumeric(code)) && size++ < 63) {\n const next = code === 45 ? emailValue : emailLabel;\n effects.consume(code);\n return next;\n }\n return nok(code);\n }\n}","/**\n * @import {\n * Code,\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { factorySpace } from 'micromark-factory-space';\nimport { asciiAlphanumeric, asciiAlpha, markdownLineEndingOrSpace, markdownLineEnding, markdownSpace } from 'micromark-util-character';\n/** @type {Construct} */\nexport const htmlText = {\n name: 'htmlText',\n tokenize: tokenizeHtmlText\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeHtmlText(effects, ok, nok) {\n const self = this;\n /** @type {NonNullable | undefined} */\n let marker;\n /** @type {number} */\n let index;\n /** @type {State} */\n let returnState;\n return start;\n\n /**\n * Start of HTML (text).\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"htmlText\");\n effects.enter(\"htmlTextData\");\n effects.consume(code);\n return open;\n }\n\n /**\n * After `<`, at tag name or other stuff.\n *\n * ```markdown\n * > | a c\n * ^\n * > | a c\n * ^\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function open(code) {\n if (code === 33) {\n effects.consume(code);\n return declarationOpen;\n }\n if (code === 47) {\n effects.consume(code);\n return tagCloseStart;\n }\n if (code === 63) {\n effects.consume(code);\n return instruction;\n }\n\n // ASCII alphabetical.\n if (asciiAlpha(code)) {\n effects.consume(code);\n return tagOpen;\n }\n return nok(code);\n }\n\n /**\n * After ` | a c\n * ^\n * > | a c\n * ^\n * > | a &<]]> c\n * ^\n * ```\n *\n * @type {State}\n */\n function declarationOpen(code) {\n if (code === 45) {\n effects.consume(code);\n return commentOpenInside;\n }\n if (code === 91) {\n effects.consume(code);\n index = 0;\n return cdataOpenInside;\n }\n if (asciiAlpha(code)) {\n effects.consume(code);\n return declaration;\n }\n return nok(code);\n }\n\n /**\n * In a comment, after ` | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function commentOpenInside(code) {\n if (code === 45) {\n effects.consume(code);\n return commentEnd;\n }\n return nok(code);\n }\n\n /**\n * In comment.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function comment(code) {\n if (code === null) {\n return nok(code);\n }\n if (code === 45) {\n effects.consume(code);\n return commentClose;\n }\n if (markdownLineEnding(code)) {\n returnState = comment;\n return lineEndingBefore(code);\n }\n effects.consume(code);\n return comment;\n }\n\n /**\n * In comment, after `-`.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function commentClose(code) {\n if (code === 45) {\n effects.consume(code);\n return commentEnd;\n }\n return comment(code);\n }\n\n /**\n * In comment, after `--`.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function commentEnd(code) {\n return code === 62 ? end(code) : code === 45 ? commentClose(code) : comment(code);\n }\n\n /**\n * After ` | a &<]]> b\n * ^^^^^^\n * ```\n *\n * @type {State}\n */\n function cdataOpenInside(code) {\n const value = \"CDATA[\";\n if (code === value.charCodeAt(index++)) {\n effects.consume(code);\n return index === value.length ? cdata : cdataOpenInside;\n }\n return nok(code);\n }\n\n /**\n * In CDATA.\n *\n * ```markdown\n * > | a &<]]> b\n * ^^^\n * ```\n *\n * @type {State}\n */\n function cdata(code) {\n if (code === null) {\n return nok(code);\n }\n if (code === 93) {\n effects.consume(code);\n return cdataClose;\n }\n if (markdownLineEnding(code)) {\n returnState = cdata;\n return lineEndingBefore(code);\n }\n effects.consume(code);\n return cdata;\n }\n\n /**\n * In CDATA, after `]`, at another `]`.\n *\n * ```markdown\n * > | a &<]]> b\n * ^\n * ```\n *\n * @type {State}\n */\n function cdataClose(code) {\n if (code === 93) {\n effects.consume(code);\n return cdataEnd;\n }\n return cdata(code);\n }\n\n /**\n * In CDATA, after `]]`, at `>`.\n *\n * ```markdown\n * > | a &<]]> b\n * ^\n * ```\n *\n * @type {State}\n */\n function cdataEnd(code) {\n if (code === 62) {\n return end(code);\n }\n if (code === 93) {\n effects.consume(code);\n return cdataEnd;\n }\n return cdata(code);\n }\n\n /**\n * In declaration.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function declaration(code) {\n if (code === null || code === 62) {\n return end(code);\n }\n if (markdownLineEnding(code)) {\n returnState = declaration;\n return lineEndingBefore(code);\n }\n effects.consume(code);\n return declaration;\n }\n\n /**\n * In instruction.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function instruction(code) {\n if (code === null) {\n return nok(code);\n }\n if (code === 63) {\n effects.consume(code);\n return instructionClose;\n }\n if (markdownLineEnding(code)) {\n returnState = instruction;\n return lineEndingBefore(code);\n }\n effects.consume(code);\n return instruction;\n }\n\n /**\n * In instruction, after `?`, at `>`.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function instructionClose(code) {\n return code === 62 ? end(code) : instruction(code);\n }\n\n /**\n * After ``, in closing tag, at tag name.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function tagCloseStart(code) {\n // ASCII alphabetical.\n if (asciiAlpha(code)) {\n effects.consume(code);\n return tagClose;\n }\n return nok(code);\n }\n\n /**\n * After ` | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function tagClose(code) {\n // ASCII alphanumerical and `-`.\n if (code === 45 || asciiAlphanumeric(code)) {\n effects.consume(code);\n return tagClose;\n }\n return tagCloseBetween(code);\n }\n\n /**\n * In closing tag, after tag name.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function tagCloseBetween(code) {\n if (markdownLineEnding(code)) {\n returnState = tagCloseBetween;\n return lineEndingBefore(code);\n }\n if (markdownSpace(code)) {\n effects.consume(code);\n return tagCloseBetween;\n }\n return end(code);\n }\n\n /**\n * After ` | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpen(code) {\n // ASCII alphanumerical and `-`.\n if (code === 45 || asciiAlphanumeric(code)) {\n effects.consume(code);\n return tagOpen;\n }\n if (code === 47 || code === 62 || markdownLineEndingOrSpace(code)) {\n return tagOpenBetween(code);\n }\n return nok(code);\n }\n\n /**\n * In opening tag, after tag name.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenBetween(code) {\n if (code === 47) {\n effects.consume(code);\n return end;\n }\n\n // ASCII alphabetical and `:` and `_`.\n if (code === 58 || code === 95 || asciiAlpha(code)) {\n effects.consume(code);\n return tagOpenAttributeName;\n }\n if (markdownLineEnding(code)) {\n returnState = tagOpenBetween;\n return lineEndingBefore(code);\n }\n if (markdownSpace(code)) {\n effects.consume(code);\n return tagOpenBetween;\n }\n return end(code);\n }\n\n /**\n * In attribute name.\n *\n * ```markdown\n * > | a d\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenAttributeName(code) {\n // ASCII alphabetical and `-`, `.`, `:`, and `_`.\n if (code === 45 || code === 46 || code === 58 || code === 95 || asciiAlphanumeric(code)) {\n effects.consume(code);\n return tagOpenAttributeName;\n }\n return tagOpenAttributeNameAfter(code);\n }\n\n /**\n * After attribute name, before initializer, the end of the tag, or\n * whitespace.\n *\n * ```markdown\n * > | a d\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenAttributeNameAfter(code) {\n if (code === 61) {\n effects.consume(code);\n return tagOpenAttributeValueBefore;\n }\n if (markdownLineEnding(code)) {\n returnState = tagOpenAttributeNameAfter;\n return lineEndingBefore(code);\n }\n if (markdownSpace(code)) {\n effects.consume(code);\n return tagOpenAttributeNameAfter;\n }\n return tagOpenBetween(code);\n }\n\n /**\n * Before unquoted, double quoted, or single quoted attribute value, allowing\n * whitespace.\n *\n * ```markdown\n * > | a e\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenAttributeValueBefore(code) {\n if (code === null || code === 60 || code === 61 || code === 62 || code === 96) {\n return nok(code);\n }\n if (code === 34 || code === 39) {\n effects.consume(code);\n marker = code;\n return tagOpenAttributeValueQuoted;\n }\n if (markdownLineEnding(code)) {\n returnState = tagOpenAttributeValueBefore;\n return lineEndingBefore(code);\n }\n if (markdownSpace(code)) {\n effects.consume(code);\n return tagOpenAttributeValueBefore;\n }\n effects.consume(code);\n return tagOpenAttributeValueUnquoted;\n }\n\n /**\n * In double or single quoted attribute value.\n *\n * ```markdown\n * > | a e\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenAttributeValueQuoted(code) {\n if (code === marker) {\n effects.consume(code);\n marker = undefined;\n return tagOpenAttributeValueQuotedAfter;\n }\n if (code === null) {\n return nok(code);\n }\n if (markdownLineEnding(code)) {\n returnState = tagOpenAttributeValueQuoted;\n return lineEndingBefore(code);\n }\n effects.consume(code);\n return tagOpenAttributeValueQuoted;\n }\n\n /**\n * In unquoted attribute value.\n *\n * ```markdown\n * > | a e\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenAttributeValueUnquoted(code) {\n if (code === null || code === 34 || code === 39 || code === 60 || code === 61 || code === 96) {\n return nok(code);\n }\n if (code === 47 || code === 62 || markdownLineEndingOrSpace(code)) {\n return tagOpenBetween(code);\n }\n effects.consume(code);\n return tagOpenAttributeValueUnquoted;\n }\n\n /**\n * After double or single quoted attribute value, before whitespace or the end\n * of the tag.\n *\n * ```markdown\n * > | a e\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenAttributeValueQuotedAfter(code) {\n if (code === 47 || code === 62 || markdownLineEndingOrSpace(code)) {\n return tagOpenBetween(code);\n }\n return nok(code);\n }\n\n /**\n * In certain circumstances of a tag where only an `>` is allowed.\n *\n * ```markdown\n * > | a e\n * ^\n * ```\n *\n * @type {State}\n */\n function end(code) {\n if (code === 62) {\n effects.consume(code);\n effects.exit(\"htmlTextData\");\n effects.exit(\"htmlText\");\n return ok;\n }\n return nok(code);\n }\n\n /**\n * At eol.\n *\n * > 👉 **Note**: we can’t have blank lines in text, so no need to worry about\n * > empty tokens.\n *\n * ```markdown\n * > | a \n * ```\n *\n * @type {State}\n */\n function lineEndingBefore(code) {\n effects.exit(\"htmlTextData\");\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return lineEndingAfter;\n }\n\n /**\n * After eol, at optional whitespace.\n *\n * > 👉 **Note**: we can’t have blank lines in text, so no need to worry about\n * > empty tokens.\n *\n * ```markdown\n * | a \n * ^\n * ```\n *\n * @type {State}\n */\n function lineEndingAfter(code) {\n // Always populated by defaults.\n\n return markdownSpace(code) ? factorySpace(effects, lineEndingAfterPrefix, \"linePrefix\", self.parser.constructs.disable.null.includes('codeIndented') ? undefined : 4)(code) : lineEndingAfterPrefix(code);\n }\n\n /**\n * After eol, after optional whitespace.\n *\n * > 👉 **Note**: we can’t have blank lines in text, so no need to worry about\n * > empty tokens.\n *\n * ```markdown\n * | a \n * ^\n * ```\n *\n * @type {State}\n */\n function lineEndingAfterPrefix(code) {\n effects.enter(\"htmlTextData\");\n return returnState(code);\n }\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { labelEnd } from './label-end.js';\n\n/** @type {Construct} */\nexport const labelStartLink = {\n name: 'labelStartLink',\n resolveAll: labelEnd.resolveAll,\n tokenize: tokenizeLabelStartLink\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeLabelStartLink(effects, ok, nok) {\n const self = this;\n return start;\n\n /**\n * Start of label (link) start.\n *\n * ```markdown\n * > | a [b] c\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"labelLink\");\n effects.enter(\"labelMarker\");\n effects.consume(code);\n effects.exit(\"labelMarker\");\n effects.exit(\"labelLink\");\n return after;\n }\n\n /** @type {State} */\n function after(code) {\n // To do: this isn’t needed in `micromark-extension-gfm-footnote`,\n // remove.\n // Hidden footnotes hook.\n /* c8 ignore next 3 */\n return code === 94 && '_hiddenFootnoteSupport' in self.parser.constructs ? nok(code) : ok(code);\n }\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { markdownLineEnding } from 'micromark-util-character';\n/** @type {Construct} */\nexport const hardBreakEscape = {\n name: 'hardBreakEscape',\n tokenize: tokenizeHardBreakEscape\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeHardBreakEscape(effects, ok, nok) {\n return start;\n\n /**\n * Start of a hard break (escape).\n *\n * ```markdown\n * > | a\\\n * ^\n * | b\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"hardBreakEscape\");\n effects.consume(code);\n return after;\n }\n\n /**\n * After `\\`, at eol.\n *\n * ```markdown\n * > | a\\\n * ^\n * | b\n * ```\n *\n * @type {State}\n */\n function after(code) {\n if (markdownLineEnding(code)) {\n effects.exit(\"hardBreakEscape\");\n return ok(code);\n }\n return nok(code);\n }\n}","/**\n * @import {\n * Construct,\n * Previous,\n * Resolver,\n * State,\n * TokenizeContext,\n * Tokenizer,\n * Token\n * } from 'micromark-util-types'\n */\n\nimport { markdownLineEnding } from 'micromark-util-character';\n/** @type {Construct} */\nexport const codeText = {\n name: 'codeText',\n previous,\n resolve: resolveCodeText,\n tokenize: tokenizeCodeText\n};\n\n// To do: next major: don’t resolve, like `markdown-rs`.\n/** @type {Resolver} */\nfunction resolveCodeText(events) {\n let tailExitIndex = events.length - 4;\n let headEnterIndex = 3;\n /** @type {number} */\n let index;\n /** @type {number | undefined} */\n let enter;\n\n // If we start and end with an EOL or a space.\n if ((events[headEnterIndex][1].type === \"lineEnding\" || events[headEnterIndex][1].type === 'space') && (events[tailExitIndex][1].type === \"lineEnding\" || events[tailExitIndex][1].type === 'space')) {\n index = headEnterIndex;\n\n // And we have data.\n while (++index < tailExitIndex) {\n if (events[index][1].type === \"codeTextData\") {\n // Then we have padding.\n events[headEnterIndex][1].type = \"codeTextPadding\";\n events[tailExitIndex][1].type = \"codeTextPadding\";\n headEnterIndex += 2;\n tailExitIndex -= 2;\n break;\n }\n }\n }\n\n // Merge adjacent spaces and data.\n index = headEnterIndex - 1;\n tailExitIndex++;\n while (++index <= tailExitIndex) {\n if (enter === undefined) {\n if (index !== tailExitIndex && events[index][1].type !== \"lineEnding\") {\n enter = index;\n }\n } else if (index === tailExitIndex || events[index][1].type === \"lineEnding\") {\n events[enter][1].type = \"codeTextData\";\n if (index !== enter + 2) {\n events[enter][1].end = events[index - 1][1].end;\n events.splice(enter + 2, index - enter - 2);\n tailExitIndex -= index - enter - 2;\n index = enter + 2;\n }\n enter = undefined;\n }\n }\n return events;\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Previous}\n */\nfunction previous(code) {\n // If there is a previous code, there will always be a tail.\n return code !== 96 || this.events[this.events.length - 1][1].type === \"characterEscape\";\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeCodeText(effects, ok, nok) {\n const self = this;\n let sizeOpen = 0;\n /** @type {number} */\n let size;\n /** @type {Token} */\n let token;\n return start;\n\n /**\n * Start of code (text).\n *\n * ```markdown\n * > | `a`\n * ^\n * > | \\`a`\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"codeText\");\n effects.enter(\"codeTextSequence\");\n return sequenceOpen(code);\n }\n\n /**\n * In opening sequence.\n *\n * ```markdown\n * > | `a`\n * ^\n * ```\n *\n * @type {State}\n */\n function sequenceOpen(code) {\n if (code === 96) {\n effects.consume(code);\n sizeOpen++;\n return sequenceOpen;\n }\n effects.exit(\"codeTextSequence\");\n return between(code);\n }\n\n /**\n * Between something and something else.\n *\n * ```markdown\n * > | `a`\n * ^^\n * ```\n *\n * @type {State}\n */\n function between(code) {\n // EOF.\n if (code === null) {\n return nok(code);\n }\n\n // To do: next major: don’t do spaces in resolve, but when compiling,\n // like `markdown-rs`.\n // Tabs don’t work, and virtual spaces don’t make sense.\n if (code === 32) {\n effects.enter('space');\n effects.consume(code);\n effects.exit('space');\n return between;\n }\n\n // Closing fence? Could also be data.\n if (code === 96) {\n token = effects.enter(\"codeTextSequence\");\n size = 0;\n return sequenceClose(code);\n }\n if (markdownLineEnding(code)) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return between;\n }\n\n // Data.\n effects.enter(\"codeTextData\");\n return data(code);\n }\n\n /**\n * In data.\n *\n * ```markdown\n * > | `a`\n * ^\n * ```\n *\n * @type {State}\n */\n function data(code) {\n if (code === null || code === 32 || code === 96 || markdownLineEnding(code)) {\n effects.exit(\"codeTextData\");\n return between(code);\n }\n effects.consume(code);\n return data;\n }\n\n /**\n * In closing sequence.\n *\n * ```markdown\n * > | `a`\n * ^\n * ```\n *\n * @type {State}\n */\n function sequenceClose(code) {\n // More.\n if (code === 96) {\n effects.consume(code);\n size++;\n return sequenceClose;\n }\n\n // Done!\n if (size === sizeOpen) {\n effects.exit(\"codeTextSequence\");\n effects.exit(\"codeText\");\n return ok(code);\n }\n\n // More or less accents: mark as data.\n token.type = \"codeTextData\";\n return data(code);\n }\n}","/**\n * @import {Extension} from 'micromark-util-types'\n */\n\nimport { attention, autolink, blockQuote, characterEscape, characterReference, codeFenced, codeIndented, codeText, definition, hardBreakEscape, headingAtx, htmlFlow, htmlText, labelEnd, labelStartImage, labelStartLink, lineEnding, list, setextUnderline, thematicBreak } from 'micromark-core-commonmark';\nimport { resolver as resolveText } from './initialize/text.js';\n\n/** @satisfies {Extension['document']} */\nexport const document = {\n [42]: list,\n [43]: list,\n [45]: list,\n [48]: list,\n [49]: list,\n [50]: list,\n [51]: list,\n [52]: list,\n [53]: list,\n [54]: list,\n [55]: list,\n [56]: list,\n [57]: list,\n [62]: blockQuote\n};\n\n/** @satisfies {Extension['contentInitial']} */\nexport const contentInitial = {\n [91]: definition\n};\n\n/** @satisfies {Extension['flowInitial']} */\nexport const flowInitial = {\n [-2]: codeIndented,\n [-1]: codeIndented,\n [32]: codeIndented\n};\n\n/** @satisfies {Extension['flow']} */\nexport const flow = {\n [35]: headingAtx,\n [42]: thematicBreak,\n [45]: [setextUnderline, thematicBreak],\n [60]: htmlFlow,\n [61]: setextUnderline,\n [95]: thematicBreak,\n [96]: codeFenced,\n [126]: codeFenced\n};\n\n/** @satisfies {Extension['string']} */\nexport const string = {\n [38]: characterReference,\n [92]: characterEscape\n};\n\n/** @satisfies {Extension['text']} */\nexport const text = {\n [-5]: lineEnding,\n [-4]: lineEnding,\n [-3]: lineEnding,\n [33]: labelStartImage,\n [38]: characterReference,\n [42]: attention,\n [60]: [autolink, htmlText],\n [91]: labelStartLink,\n [92]: [hardBreakEscape, characterEscape],\n [93]: labelEnd,\n [95]: attention,\n [96]: codeText\n};\n\n/** @satisfies {Extension['insideSpan']} */\nexport const insideSpan = {\n null: [attention, resolveText]\n};\n\n/** @satisfies {Extension['attentionMarkers']} */\nexport const attentionMarkers = {\n null: [42, 95]\n};\n\n/** @satisfies {Extension['disable']} */\nexport const disable = {\n null: []\n};","/**\n * @import {\n * Chunk,\n * Code,\n * ConstructRecord,\n * Construct,\n * Effects,\n * InitialConstruct,\n * ParseContext,\n * Point,\n * State,\n * TokenizeContext,\n * Token\n * } from 'micromark-util-types'\n */\n\n/**\n * @callback Restore\n * Restore the state.\n * @returns {undefined}\n * Nothing.\n *\n * @typedef Info\n * Info.\n * @property {Restore} restore\n * Restore.\n * @property {number} from\n * From.\n *\n * @callback ReturnHandle\n * Handle a successful run.\n * @param {Construct} construct\n * Construct.\n * @param {Info} info\n * Info.\n * @returns {undefined}\n * Nothing.\n */\n\nimport { markdownLineEnding } from 'micromark-util-character';\nimport { push, splice } from 'micromark-util-chunked';\nimport { resolveAll } from 'micromark-util-resolve-all';\n/**\n * Create a tokenizer.\n * Tokenizers deal with one type of data (e.g., containers, flow, text).\n * The parser is the object dealing with it all.\n * `initialize` works like other constructs, except that only its `tokenize`\n * function is used, in which case it doesn’t receive an `ok` or `nok`.\n * `from` can be given to set the point before the first character, although\n * when further lines are indented, they must be set with `defineSkip`.\n *\n * @param {ParseContext} parser\n * Parser.\n * @param {InitialConstruct} initialize\n * Construct.\n * @param {Omit | undefined} [from]\n * Point (optional).\n * @returns {TokenizeContext}\n * Context.\n */\nexport function createTokenizer(parser, initialize, from) {\n /** @type {Point} */\n let point = {\n _bufferIndex: -1,\n _index: 0,\n line: from && from.line || 1,\n column: from && from.column || 1,\n offset: from && from.offset || 0\n };\n /** @type {Record} */\n const columnStart = {};\n /** @type {Array} */\n const resolveAllConstructs = [];\n /** @type {Array} */\n let chunks = [];\n /** @type {Array} */\n let stack = [];\n /** @type {boolean | undefined} */\n let consumed = true;\n\n /**\n * Tools used for tokenizing.\n *\n * @type {Effects}\n */\n const effects = {\n attempt: constructFactory(onsuccessfulconstruct),\n check: constructFactory(onsuccessfulcheck),\n consume,\n enter,\n exit,\n interrupt: constructFactory(onsuccessfulcheck, {\n interrupt: true\n })\n };\n\n /**\n * State and tools for resolving and serializing.\n *\n * @type {TokenizeContext}\n */\n const context = {\n code: null,\n containerState: {},\n defineSkip,\n events: [],\n now,\n parser,\n previous: null,\n sliceSerialize,\n sliceStream,\n write\n };\n\n /**\n * The state function.\n *\n * @type {State | undefined}\n */\n let state = initialize.tokenize.call(context, effects);\n\n /**\n * Track which character we expect to be consumed, to catch bugs.\n *\n * @type {Code}\n */\n let expectedCode;\n if (initialize.resolveAll) {\n resolveAllConstructs.push(initialize);\n }\n return context;\n\n /** @type {TokenizeContext['write']} */\n function write(slice) {\n chunks = push(chunks, slice);\n main();\n\n // Exit if we’re not done, resolve might change stuff.\n if (chunks[chunks.length - 1] !== null) {\n return [];\n }\n addResult(initialize, 0);\n\n // Otherwise, resolve, and exit.\n context.events = resolveAll(resolveAllConstructs, context.events, context);\n return context.events;\n }\n\n //\n // Tools.\n //\n\n /** @type {TokenizeContext['sliceSerialize']} */\n function sliceSerialize(token, expandTabs) {\n return serializeChunks(sliceStream(token), expandTabs);\n }\n\n /** @type {TokenizeContext['sliceStream']} */\n function sliceStream(token) {\n return sliceChunks(chunks, token);\n }\n\n /** @type {TokenizeContext['now']} */\n function now() {\n // This is a hot path, so we clone manually instead of `Object.assign({}, point)`\n const {\n _bufferIndex,\n _index,\n line,\n column,\n offset\n } = point;\n return {\n _bufferIndex,\n _index,\n line,\n column,\n offset\n };\n }\n\n /** @type {TokenizeContext['defineSkip']} */\n function defineSkip(value) {\n columnStart[value.line] = value.column;\n accountForPotentialSkip();\n }\n\n //\n // State management.\n //\n\n /**\n * Main loop (note that `_index` and `_bufferIndex` in `point` are modified by\n * `consume`).\n * Here is where we walk through the chunks, which either include strings of\n * several characters, or numerical character codes.\n * The reason to do this in a loop instead of a call is so the stack can\n * drain.\n *\n * @returns {undefined}\n * Nothing.\n */\n function main() {\n /** @type {number} */\n let chunkIndex;\n while (point._index < chunks.length) {\n const chunk = chunks[point._index];\n\n // If we’re in a buffer chunk, loop through it.\n if (typeof chunk === 'string') {\n chunkIndex = point._index;\n if (point._bufferIndex < 0) {\n point._bufferIndex = 0;\n }\n while (point._index === chunkIndex && point._bufferIndex < chunk.length) {\n go(chunk.charCodeAt(point._bufferIndex));\n }\n } else {\n go(chunk);\n }\n }\n }\n\n /**\n * Deal with one code.\n *\n * @param {Code} code\n * Code.\n * @returns {undefined}\n * Nothing.\n */\n function go(code) {\n consumed = undefined;\n expectedCode = code;\n state = state(code);\n }\n\n /** @type {Effects['consume']} */\n function consume(code) {\n if (markdownLineEnding(code)) {\n point.line++;\n point.column = 1;\n point.offset += code === -3 ? 2 : 1;\n accountForPotentialSkip();\n } else if (code !== -1) {\n point.column++;\n point.offset++;\n }\n\n // Not in a string chunk.\n if (point._bufferIndex < 0) {\n point._index++;\n } else {\n point._bufferIndex++;\n\n // At end of string chunk.\n if (point._bufferIndex ===\n // Points w/ non-negative `_bufferIndex` reference\n // strings.\n /** @type {string} */\n chunks[point._index].length) {\n point._bufferIndex = -1;\n point._index++;\n }\n }\n\n // Expose the previous character.\n context.previous = code;\n\n // Mark as consumed.\n consumed = true;\n }\n\n /** @type {Effects['enter']} */\n function enter(type, fields) {\n /** @type {Token} */\n // @ts-expect-error Patch instead of assign required fields to help GC.\n const token = fields || {};\n token.type = type;\n token.start = now();\n context.events.push(['enter', token, context]);\n stack.push(token);\n return token;\n }\n\n /** @type {Effects['exit']} */\n function exit(type) {\n const token = stack.pop();\n token.end = now();\n context.events.push(['exit', token, context]);\n return token;\n }\n\n /**\n * Use results.\n *\n * @type {ReturnHandle}\n */\n function onsuccessfulconstruct(construct, info) {\n addResult(construct, info.from);\n }\n\n /**\n * Discard results.\n *\n * @type {ReturnHandle}\n */\n function onsuccessfulcheck(_, info) {\n info.restore();\n }\n\n /**\n * Factory to attempt/check/interrupt.\n *\n * @param {ReturnHandle} onreturn\n * Callback.\n * @param {{interrupt?: boolean | undefined} | undefined} [fields]\n * Fields.\n */\n function constructFactory(onreturn, fields) {\n return hook;\n\n /**\n * Handle either an object mapping codes to constructs, a list of\n * constructs, or a single construct.\n *\n * @param {Array | ConstructRecord | Construct} constructs\n * Constructs.\n * @param {State} returnState\n * State.\n * @param {State | undefined} [bogusState]\n * State.\n * @returns {State}\n * State.\n */\n function hook(constructs, returnState, bogusState) {\n /** @type {ReadonlyArray} */\n let listOfConstructs;\n /** @type {number} */\n let constructIndex;\n /** @type {Construct} */\n let currentConstruct;\n /** @type {Info} */\n let info;\n return Array.isArray(constructs) ? /* c8 ignore next 1 */\n handleListOfConstructs(constructs) : 'tokenize' in constructs ?\n // Looks like a construct.\n handleListOfConstructs([(/** @type {Construct} */constructs)]) : handleMapOfConstructs(constructs);\n\n /**\n * Handle a list of construct.\n *\n * @param {ConstructRecord} map\n * Constructs.\n * @returns {State}\n * State.\n */\n function handleMapOfConstructs(map) {\n return start;\n\n /** @type {State} */\n function start(code) {\n const left = code !== null && map[code];\n const all = code !== null && map.null;\n const list = [\n // To do: add more extension tests.\n /* c8 ignore next 2 */\n ...(Array.isArray(left) ? left : left ? [left] : []), ...(Array.isArray(all) ? all : all ? [all] : [])];\n return handleListOfConstructs(list)(code);\n }\n }\n\n /**\n * Handle a list of construct.\n *\n * @param {ReadonlyArray} list\n * Constructs.\n * @returns {State}\n * State.\n */\n function handleListOfConstructs(list) {\n listOfConstructs = list;\n constructIndex = 0;\n if (list.length === 0) {\n return bogusState;\n }\n return handleConstruct(list[constructIndex]);\n }\n\n /**\n * Handle a single construct.\n *\n * @param {Construct} construct\n * Construct.\n * @returns {State}\n * State.\n */\n function handleConstruct(construct) {\n return start;\n\n /** @type {State} */\n function start(code) {\n // To do: not needed to store if there is no bogus state, probably?\n // Currently doesn’t work because `inspect` in document does a check\n // w/o a bogus, which doesn’t make sense. But it does seem to help perf\n // by not storing.\n info = store();\n currentConstruct = construct;\n if (!construct.partial) {\n context.currentConstruct = construct;\n }\n\n // Always populated by defaults.\n\n if (construct.name && context.parser.constructs.disable.null.includes(construct.name)) {\n return nok(code);\n }\n return construct.tokenize.call(\n // If we do have fields, create an object w/ `context` as its\n // prototype.\n // This allows a “live binding”, which is needed for `interrupt`.\n fields ? Object.assign(Object.create(context), fields) : context, effects, ok, nok)(code);\n }\n }\n\n /** @type {State} */\n function ok(code) {\n consumed = true;\n onreturn(currentConstruct, info);\n return returnState;\n }\n\n /** @type {State} */\n function nok(code) {\n consumed = true;\n info.restore();\n if (++constructIndex < listOfConstructs.length) {\n return handleConstruct(listOfConstructs[constructIndex]);\n }\n return bogusState;\n }\n }\n }\n\n /**\n * @param {Construct} construct\n * Construct.\n * @param {number} from\n * From.\n * @returns {undefined}\n * Nothing.\n */\n function addResult(construct, from) {\n if (construct.resolveAll && !resolveAllConstructs.includes(construct)) {\n resolveAllConstructs.push(construct);\n }\n if (construct.resolve) {\n splice(context.events, from, context.events.length - from, construct.resolve(context.events.slice(from), context));\n }\n if (construct.resolveTo) {\n context.events = construct.resolveTo(context.events, context);\n }\n }\n\n /**\n * Store state.\n *\n * @returns {Info}\n * Info.\n */\n function store() {\n const startPoint = now();\n const startPrevious = context.previous;\n const startCurrentConstruct = context.currentConstruct;\n const startEventsIndex = context.events.length;\n const startStack = Array.from(stack);\n return {\n from: startEventsIndex,\n restore\n };\n\n /**\n * Restore state.\n *\n * @returns {undefined}\n * Nothing.\n */\n function restore() {\n point = startPoint;\n context.previous = startPrevious;\n context.currentConstruct = startCurrentConstruct;\n context.events.length = startEventsIndex;\n stack = startStack;\n accountForPotentialSkip();\n }\n }\n\n /**\n * Move the current point a bit forward in the line when it’s on a column\n * skip.\n *\n * @returns {undefined}\n * Nothing.\n */\n function accountForPotentialSkip() {\n if (point.line in columnStart && point.column < 2) {\n point.column = columnStart[point.line];\n point.offset += columnStart[point.line] - 1;\n }\n }\n}\n\n/**\n * Get the chunks from a slice of chunks in the range of a token.\n *\n * @param {ReadonlyArray} chunks\n * Chunks.\n * @param {Pick} token\n * Token.\n * @returns {Array}\n * Chunks.\n */\nfunction sliceChunks(chunks, token) {\n const startIndex = token.start._index;\n const startBufferIndex = token.start._bufferIndex;\n const endIndex = token.end._index;\n const endBufferIndex = token.end._bufferIndex;\n /** @type {Array} */\n let view;\n if (startIndex === endIndex) {\n // @ts-expect-error `_bufferIndex` is used on string chunks.\n view = [chunks[startIndex].slice(startBufferIndex, endBufferIndex)];\n } else {\n view = chunks.slice(startIndex, endIndex);\n if (startBufferIndex > -1) {\n const head = view[0];\n if (typeof head === 'string') {\n view[0] = head.slice(startBufferIndex);\n /* c8 ignore next 4 -- used to be used, no longer */\n } else {\n view.shift();\n }\n }\n if (endBufferIndex > 0) {\n // @ts-expect-error `_bufferIndex` is used on string chunks.\n view.push(chunks[endIndex].slice(0, endBufferIndex));\n }\n }\n return view;\n}\n\n/**\n * Get the string value of a slice of chunks.\n *\n * @param {ReadonlyArray} chunks\n * Chunks.\n * @param {boolean | undefined} [expandTabs=false]\n * Whether to expand tabs (default: `false`).\n * @returns {string}\n * Result.\n */\nfunction serializeChunks(chunks, expandTabs) {\n let index = -1;\n /** @type {Array} */\n const result = [];\n /** @type {boolean | undefined} */\n let atTab;\n while (++index < chunks.length) {\n const chunk = chunks[index];\n /** @type {string} */\n let value;\n if (typeof chunk === 'string') {\n value = chunk;\n } else switch (chunk) {\n case -5:\n {\n value = \"\\r\";\n break;\n }\n case -4:\n {\n value = \"\\n\";\n break;\n }\n case -3:\n {\n value = \"\\r\" + \"\\n\";\n break;\n }\n case -2:\n {\n value = expandTabs ? \" \" : \"\\t\";\n break;\n }\n case -1:\n {\n if (!expandTabs && atTab) continue;\n value = \" \";\n break;\n }\n default:\n {\n // Currently only replacement character.\n value = String.fromCharCode(chunk);\n }\n }\n atTab = chunk === -2;\n result.push(value);\n }\n return result.join('');\n}","/**\n * @import {Chunk, Code, Encoding, Value} from 'micromark-util-types'\n */\n\n/**\n * @callback Preprocessor\n * Preprocess a value.\n * @param {Value} value\n * Value.\n * @param {Encoding | null | undefined} [encoding]\n * Encoding when `value` is a typed array (optional).\n * @param {boolean | null | undefined} [end=false]\n * Whether this is the last chunk (default: `false`).\n * @returns {Array}\n * Chunks.\n */\n\nconst search = /[\\0\\t\\n\\r]/g;\n\n/**\n * @returns {Preprocessor}\n * Preprocess a value.\n */\nexport function preprocess() {\n let column = 1;\n let buffer = '';\n /** @type {boolean | undefined} */\n let start = true;\n /** @type {boolean | undefined} */\n let atCarriageReturn;\n return preprocessor;\n\n /** @type {Preprocessor} */\n // eslint-disable-next-line complexity\n function preprocessor(value, encoding, end) {\n /** @type {Array} */\n const chunks = [];\n /** @type {RegExpMatchArray | null} */\n let match;\n /** @type {number} */\n let next;\n /** @type {number} */\n let startPosition;\n /** @type {number} */\n let endPosition;\n /** @type {Code} */\n let code;\n value = buffer + (typeof value === 'string' ? value.toString() : new TextDecoder(encoding || undefined).decode(value));\n startPosition = 0;\n buffer = '';\n if (start) {\n // To do: `markdown-rs` actually parses BOMs (byte order mark).\n if (value.charCodeAt(0) === 65279) {\n startPosition++;\n }\n start = undefined;\n }\n while (startPosition < value.length) {\n search.lastIndex = startPosition;\n match = search.exec(value);\n endPosition = match && match.index !== undefined ? match.index : value.length;\n code = value.charCodeAt(endPosition);\n if (!match) {\n buffer = value.slice(startPosition);\n break;\n }\n if (code === 10 && startPosition === endPosition && atCarriageReturn) {\n chunks.push(-3);\n atCarriageReturn = undefined;\n } else {\n if (atCarriageReturn) {\n chunks.push(-5);\n atCarriageReturn = undefined;\n }\n if (startPosition < endPosition) {\n chunks.push(value.slice(startPosition, endPosition));\n column += endPosition - startPosition;\n }\n switch (code) {\n case 0:\n {\n chunks.push(65533);\n column++;\n break;\n }\n case 9:\n {\n next = Math.ceil(column / 4) * 4;\n chunks.push(-2);\n while (column++ < next) chunks.push(-1);\n break;\n }\n case 10:\n {\n chunks.push(-4);\n column = 1;\n break;\n }\n default:\n {\n atCarriageReturn = true;\n column = 1;\n }\n }\n }\n startPosition = endPosition + 1;\n }\n if (end) {\n if (atCarriageReturn) chunks.push(-5);\n if (buffer) chunks.push(buffer);\n chunks.push(null);\n }\n return chunks;\n }\n}","/**\n * Turn the number (in string form as either hexa- or plain decimal) coming from\n * a numeric character reference into a character.\n *\n * Sort of like `String.fromCodePoint(Number.parseInt(value, base))`, but makes\n * non-characters and control characters safe.\n *\n * @param {string} value\n * Value to decode.\n * @param {number} base\n * Numeric base.\n * @returns {string}\n * Character.\n */\nexport function decodeNumericCharacterReference(value, base) {\n const code = Number.parseInt(value, base);\n if (\n // C0 except for HT, LF, FF, CR, space.\n code < 9 || code === 11 || code > 13 && code < 32 ||\n // Control character (DEL) of C0, and C1 controls.\n code > 126 && code < 160 ||\n // Lone high surrogates and low surrogates.\n code > 55_295 && code < 57_344 ||\n // Noncharacters.\n code > 64_975 && code < 65_008 || /* eslint-disable no-bitwise */\n (code & 65_535) === 65_535 || (code & 65_535) === 65_534 || /* eslint-enable no-bitwise */\n // Out of range\n code > 1_114_111) {\n return \"\\uFFFD\";\n }\n return String.fromCodePoint(code);\n}","import { decodeNamedCharacterReference } from 'decode-named-character-reference';\nimport { decodeNumericCharacterReference } from 'micromark-util-decode-numeric-character-reference';\nconst characterEscapeOrReference = /\\\\([!-/:-@[-`{-~])|&(#(?:\\d{1,7}|x[\\da-f]{1,6})|[\\da-z]{1,31});/gi;\n\n/**\n * Decode markdown strings (which occur in places such as fenced code info\n * strings, destinations, labels, and titles).\n *\n * The “string” content type allows character escapes and -references.\n * This decodes those.\n *\n * @param {string} value\n * Value to decode.\n * @returns {string}\n * Decoded value.\n */\nexport function decodeString(value) {\n return value.replace(characterEscapeOrReference, decode);\n}\n\n/**\n * @param {string} $0\n * Match.\n * @param {string} $1\n * Character escape.\n * @param {string} $2\n * Character reference.\n * @returns {string}\n * Decoded value\n */\nfunction decode($0, $1, $2) {\n if ($1) {\n // Escape.\n return $1;\n }\n\n // Reference.\n const head = $2.charCodeAt(0);\n if (head === 35) {\n const head = $2.charCodeAt(1);\n const hex = head === 120 || head === 88;\n return decodeNumericCharacterReference($2.slice(hex ? 2 : 1), hex ? 16 : 10);\n }\n return decodeNamedCharacterReference($2) || $0;\n}","/**\n * @typedef {import('unist').Node} Node\n * @typedef {import('unist').Point} Point\n * @typedef {import('unist').Position} Position\n */\n\n/**\n * @typedef NodeLike\n * @property {string} type\n * @property {PositionLike | null | undefined} [position]\n *\n * @typedef PointLike\n * @property {number | null | undefined} [line]\n * @property {number | null | undefined} [column]\n * @property {number | null | undefined} [offset]\n *\n * @typedef PositionLike\n * @property {PointLike | null | undefined} [start]\n * @property {PointLike | null | undefined} [end]\n */\n\n/**\n * Serialize the positional info of a point, position (start and end points),\n * or node.\n *\n * @param {Node | NodeLike | Point | PointLike | Position | PositionLike | null | undefined} [value]\n * Node, position, or point.\n * @returns {string}\n * Pretty printed positional info of a node (`string`).\n *\n * In the format of a range `ls:cs-le:ce` (when given `node` or `position`)\n * or a point `l:c` (when given `point`), where `l` stands for line, `c` for\n * column, `s` for `start`, and `e` for end.\n * An empty string (`''`) is returned if the given value is neither `node`,\n * `position`, nor `point`.\n */\nexport function stringifyPosition(value) {\n // Nothing.\n if (!value || typeof value !== 'object') {\n return ''\n }\n\n // Node.\n if ('position' in value || 'type' in value) {\n return position(value.position)\n }\n\n // Position.\n if ('start' in value || 'end' in value) {\n return position(value)\n }\n\n // Point.\n if ('line' in value || 'column' in value) {\n return point(value)\n }\n\n // ?\n return ''\n}\n\n/**\n * @param {Point | PointLike | null | undefined} point\n * @returns {string}\n */\nfunction point(point) {\n return index(point && point.line) + ':' + index(point && point.column)\n}\n\n/**\n * @param {Position | PositionLike | null | undefined} pos\n * @returns {string}\n */\nfunction position(pos) {\n return point(pos && pos.start) + '-' + point(pos && pos.end)\n}\n\n/**\n * @param {number | null | undefined} value\n * @returns {number}\n */\nfunction index(value) {\n return value && typeof value === 'number' ? value : 1\n}\n","/**\n * @import {\n * Break,\n * Blockquote,\n * Code,\n * Definition,\n * Emphasis,\n * Heading,\n * Html,\n * Image,\n * InlineCode,\n * Link,\n * ListItem,\n * List,\n * Nodes,\n * Paragraph,\n * PhrasingContent,\n * ReferenceType,\n * Root,\n * Strong,\n * Text,\n * ThematicBreak\n * } from 'mdast'\n * @import {\n * Encoding,\n * Event,\n * Token,\n * Value\n * } from 'micromark-util-types'\n * @import {Point} from 'unist'\n * @import {\n * CompileContext,\n * CompileData,\n * Config,\n * Extension,\n * Handle,\n * OnEnterError,\n * Options\n * } from './types.js'\n */\n\nimport { toString } from 'mdast-util-to-string';\nimport { parse, postprocess, preprocess } from 'micromark';\nimport { decodeNumericCharacterReference } from 'micromark-util-decode-numeric-character-reference';\nimport { decodeString } from 'micromark-util-decode-string';\nimport { normalizeIdentifier } from 'micromark-util-normalize-identifier';\nimport { decodeNamedCharacterReference } from 'decode-named-character-reference';\nimport { stringifyPosition } from 'unist-util-stringify-position';\nconst own = {}.hasOwnProperty;\n\n/**\n * Turn markdown into a syntax tree.\n *\n * @overload\n * @param {Value} value\n * @param {Encoding | null | undefined} [encoding]\n * @param {Options | null | undefined} [options]\n * @returns {Root}\n *\n * @overload\n * @param {Value} value\n * @param {Options | null | undefined} [options]\n * @returns {Root}\n *\n * @param {Value} value\n * Markdown to parse.\n * @param {Encoding | Options | null | undefined} [encoding]\n * Character encoding for when `value` is `Buffer`.\n * @param {Options | null | undefined} [options]\n * Configuration.\n * @returns {Root}\n * mdast tree.\n */\nexport function fromMarkdown(value, encoding, options) {\n if (typeof encoding !== 'string') {\n options = encoding;\n encoding = undefined;\n }\n return compiler(options)(postprocess(parse(options).document().write(preprocess()(value, encoding, true))));\n}\n\n/**\n * Note this compiler only understand complete buffering, not streaming.\n *\n * @param {Options | null | undefined} [options]\n */\nfunction compiler(options) {\n /** @type {Config} */\n const config = {\n transforms: [],\n canContainEols: ['emphasis', 'fragment', 'heading', 'paragraph', 'strong'],\n enter: {\n autolink: opener(link),\n autolinkProtocol: onenterdata,\n autolinkEmail: onenterdata,\n atxHeading: opener(heading),\n blockQuote: opener(blockQuote),\n characterEscape: onenterdata,\n characterReference: onenterdata,\n codeFenced: opener(codeFlow),\n codeFencedFenceInfo: buffer,\n codeFencedFenceMeta: buffer,\n codeIndented: opener(codeFlow, buffer),\n codeText: opener(codeText, buffer),\n codeTextData: onenterdata,\n data: onenterdata,\n codeFlowValue: onenterdata,\n definition: opener(definition),\n definitionDestinationString: buffer,\n definitionLabelString: buffer,\n definitionTitleString: buffer,\n emphasis: opener(emphasis),\n hardBreakEscape: opener(hardBreak),\n hardBreakTrailing: opener(hardBreak),\n htmlFlow: opener(html, buffer),\n htmlFlowData: onenterdata,\n htmlText: opener(html, buffer),\n htmlTextData: onenterdata,\n image: opener(image),\n label: buffer,\n link: opener(link),\n listItem: opener(listItem),\n listItemValue: onenterlistitemvalue,\n listOrdered: opener(list, onenterlistordered),\n listUnordered: opener(list),\n paragraph: opener(paragraph),\n reference: onenterreference,\n referenceString: buffer,\n resourceDestinationString: buffer,\n resourceTitleString: buffer,\n setextHeading: opener(heading),\n strong: opener(strong),\n thematicBreak: opener(thematicBreak)\n },\n exit: {\n atxHeading: closer(),\n atxHeadingSequence: onexitatxheadingsequence,\n autolink: closer(),\n autolinkEmail: onexitautolinkemail,\n autolinkProtocol: onexitautolinkprotocol,\n blockQuote: closer(),\n characterEscapeValue: onexitdata,\n characterReferenceMarkerHexadecimal: onexitcharacterreferencemarker,\n characterReferenceMarkerNumeric: onexitcharacterreferencemarker,\n characterReferenceValue: onexitcharacterreferencevalue,\n characterReference: onexitcharacterreference,\n codeFenced: closer(onexitcodefenced),\n codeFencedFence: onexitcodefencedfence,\n codeFencedFenceInfo: onexitcodefencedfenceinfo,\n codeFencedFenceMeta: onexitcodefencedfencemeta,\n codeFlowValue: onexitdata,\n codeIndented: closer(onexitcodeindented),\n codeText: closer(onexitcodetext),\n codeTextData: onexitdata,\n data: onexitdata,\n definition: closer(),\n definitionDestinationString: onexitdefinitiondestinationstring,\n definitionLabelString: onexitdefinitionlabelstring,\n definitionTitleString: onexitdefinitiontitlestring,\n emphasis: closer(),\n hardBreakEscape: closer(onexithardbreak),\n hardBreakTrailing: closer(onexithardbreak),\n htmlFlow: closer(onexithtmlflow),\n htmlFlowData: onexitdata,\n htmlText: closer(onexithtmltext),\n htmlTextData: onexitdata,\n image: closer(onexitimage),\n label: onexitlabel,\n labelText: onexitlabeltext,\n lineEnding: onexitlineending,\n link: closer(onexitlink),\n listItem: closer(),\n listOrdered: closer(),\n listUnordered: closer(),\n paragraph: closer(),\n referenceString: onexitreferencestring,\n resourceDestinationString: onexitresourcedestinationstring,\n resourceTitleString: onexitresourcetitlestring,\n resource: onexitresource,\n setextHeading: closer(onexitsetextheading),\n setextHeadingLineSequence: onexitsetextheadinglinesequence,\n setextHeadingText: onexitsetextheadingtext,\n strong: closer(),\n thematicBreak: closer()\n }\n };\n configure(config, (options || {}).mdastExtensions || []);\n\n /** @type {CompileData} */\n const data = {};\n return compile;\n\n /**\n * Turn micromark events into an mdast tree.\n *\n * @param {Array} events\n * Events.\n * @returns {Root}\n * mdast tree.\n */\n function compile(events) {\n /** @type {Root} */\n let tree = {\n type: 'root',\n children: []\n };\n /** @type {Omit} */\n const context = {\n stack: [tree],\n tokenStack: [],\n config,\n enter,\n exit,\n buffer,\n resume,\n data\n };\n /** @type {Array} */\n const listStack = [];\n let index = -1;\n while (++index < events.length) {\n // We preprocess lists to add `listItem` tokens, and to infer whether\n // items the list itself are spread out.\n if (events[index][1].type === \"listOrdered\" || events[index][1].type === \"listUnordered\") {\n if (events[index][0] === 'enter') {\n listStack.push(index);\n } else {\n const tail = listStack.pop();\n index = prepareList(events, tail, index);\n }\n }\n }\n index = -1;\n while (++index < events.length) {\n const handler = config[events[index][0]];\n if (own.call(handler, events[index][1].type)) {\n handler[events[index][1].type].call(Object.assign({\n sliceSerialize: events[index][2].sliceSerialize\n }, context), events[index][1]);\n }\n }\n\n // Handle tokens still being open.\n if (context.tokenStack.length > 0) {\n const tail = context.tokenStack[context.tokenStack.length - 1];\n const handler = tail[1] || defaultOnError;\n handler.call(context, undefined, tail[0]);\n }\n\n // Figure out `root` position.\n tree.position = {\n start: point(events.length > 0 ? events[0][1].start : {\n line: 1,\n column: 1,\n offset: 0\n }),\n end: point(events.length > 0 ? events[events.length - 2][1].end : {\n line: 1,\n column: 1,\n offset: 0\n })\n };\n\n // Call transforms.\n index = -1;\n while (++index < config.transforms.length) {\n tree = config.transforms[index](tree) || tree;\n }\n return tree;\n }\n\n /**\n * @param {Array} events\n * @param {number} start\n * @param {number} length\n * @returns {number}\n */\n function prepareList(events, start, length) {\n let index = start - 1;\n let containerBalance = -1;\n let listSpread = false;\n /** @type {Token | undefined} */\n let listItem;\n /** @type {number | undefined} */\n let lineIndex;\n /** @type {number | undefined} */\n let firstBlankLineIndex;\n /** @type {boolean | undefined} */\n let atMarker;\n while (++index <= length) {\n const event = events[index];\n switch (event[1].type) {\n case \"listUnordered\":\n case \"listOrdered\":\n case \"blockQuote\":\n {\n if (event[0] === 'enter') {\n containerBalance++;\n } else {\n containerBalance--;\n }\n atMarker = undefined;\n break;\n }\n case \"lineEndingBlank\":\n {\n if (event[0] === 'enter') {\n if (listItem && !atMarker && !containerBalance && !firstBlankLineIndex) {\n firstBlankLineIndex = index;\n }\n atMarker = undefined;\n }\n break;\n }\n case \"linePrefix\":\n case \"listItemValue\":\n case \"listItemMarker\":\n case \"listItemPrefix\":\n case \"listItemPrefixWhitespace\":\n {\n // Empty.\n\n break;\n }\n default:\n {\n atMarker = undefined;\n }\n }\n if (!containerBalance && event[0] === 'enter' && event[1].type === \"listItemPrefix\" || containerBalance === -1 && event[0] === 'exit' && (event[1].type === \"listUnordered\" || event[1].type === \"listOrdered\")) {\n if (listItem) {\n let tailIndex = index;\n lineIndex = undefined;\n while (tailIndex--) {\n const tailEvent = events[tailIndex];\n if (tailEvent[1].type === \"lineEnding\" || tailEvent[1].type === \"lineEndingBlank\") {\n if (tailEvent[0] === 'exit') continue;\n if (lineIndex) {\n events[lineIndex][1].type = \"lineEndingBlank\";\n listSpread = true;\n }\n tailEvent[1].type = \"lineEnding\";\n lineIndex = tailIndex;\n } else if (tailEvent[1].type === \"linePrefix\" || tailEvent[1].type === \"blockQuotePrefix\" || tailEvent[1].type === \"blockQuotePrefixWhitespace\" || tailEvent[1].type === \"blockQuoteMarker\" || tailEvent[1].type === \"listItemIndent\") {\n // Empty\n } else {\n break;\n }\n }\n if (firstBlankLineIndex && (!lineIndex || firstBlankLineIndex < lineIndex)) {\n listItem._spread = true;\n }\n\n // Fix position.\n listItem.end = Object.assign({}, lineIndex ? events[lineIndex][1].start : event[1].end);\n events.splice(lineIndex || index, 0, ['exit', listItem, event[2]]);\n index++;\n length++;\n }\n\n // Create a new list item.\n if (event[1].type === \"listItemPrefix\") {\n /** @type {Token} */\n const item = {\n type: 'listItem',\n _spread: false,\n start: Object.assign({}, event[1].start),\n // @ts-expect-error: we’ll add `end` in a second.\n end: undefined\n };\n listItem = item;\n events.splice(index, 0, ['enter', item, event[2]]);\n index++;\n length++;\n firstBlankLineIndex = undefined;\n atMarker = true;\n }\n }\n }\n events[start][1]._spread = listSpread;\n return length;\n }\n\n /**\n * Create an opener handle.\n *\n * @param {(token: Token) => Nodes} create\n * Create a node.\n * @param {Handle | undefined} [and]\n * Optional function to also run.\n * @returns {Handle}\n * Handle.\n */\n function opener(create, and) {\n return open;\n\n /**\n * @this {CompileContext}\n * @param {Token} token\n * @returns {undefined}\n */\n function open(token) {\n enter.call(this, create(token), token);\n if (and) and.call(this, token);\n }\n }\n\n /**\n * @type {CompileContext['buffer']}\n */\n function buffer() {\n this.stack.push({\n type: 'fragment',\n children: []\n });\n }\n\n /**\n * @type {CompileContext['enter']}\n */\n function enter(node, token, errorHandler) {\n const parent = this.stack[this.stack.length - 1];\n /** @type {Array} */\n const siblings = parent.children;\n siblings.push(node);\n this.stack.push(node);\n this.tokenStack.push([token, errorHandler || undefined]);\n node.position = {\n start: point(token.start),\n // @ts-expect-error: `end` will be patched later.\n end: undefined\n };\n }\n\n /**\n * Create a closer handle.\n *\n * @param {Handle | undefined} [and]\n * Optional function to also run.\n * @returns {Handle}\n * Handle.\n */\n function closer(and) {\n return close;\n\n /**\n * @this {CompileContext}\n * @param {Token} token\n * @returns {undefined}\n */\n function close(token) {\n if (and) and.call(this, token);\n exit.call(this, token);\n }\n }\n\n /**\n * @type {CompileContext['exit']}\n */\n function exit(token, onExitError) {\n const node = this.stack.pop();\n const open = this.tokenStack.pop();\n if (!open) {\n throw new Error('Cannot close `' + token.type + '` (' + stringifyPosition({\n start: token.start,\n end: token.end\n }) + '): it’s not open');\n } else if (open[0].type !== token.type) {\n if (onExitError) {\n onExitError.call(this, token, open[0]);\n } else {\n const handler = open[1] || defaultOnError;\n handler.call(this, token, open[0]);\n }\n }\n node.position.end = point(token.end);\n }\n\n /**\n * @type {CompileContext['resume']}\n */\n function resume() {\n return toString(this.stack.pop());\n }\n\n //\n // Handlers.\n //\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onenterlistordered() {\n this.data.expectingFirstListItemValue = true;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onenterlistitemvalue(token) {\n if (this.data.expectingFirstListItemValue) {\n const ancestor = this.stack[this.stack.length - 2];\n ancestor.start = Number.parseInt(this.sliceSerialize(token), 10);\n this.data.expectingFirstListItemValue = undefined;\n }\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcodefencedfenceinfo() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.lang = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcodefencedfencemeta() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.meta = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcodefencedfence() {\n // Exit if this is the closing fence.\n if (this.data.flowCodeInside) return;\n this.buffer();\n this.data.flowCodeInside = true;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcodefenced() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.value = data.replace(/^(\\r?\\n|\\r)|(\\r?\\n|\\r)$/g, '');\n this.data.flowCodeInside = undefined;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcodeindented() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.value = data.replace(/(\\r?\\n|\\r)$/g, '');\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitdefinitionlabelstring(token) {\n const label = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.label = label;\n node.identifier = normalizeIdentifier(this.sliceSerialize(token)).toLowerCase();\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitdefinitiontitlestring() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.title = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitdefinitiondestinationstring() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.url = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitatxheadingsequence(token) {\n const node = this.stack[this.stack.length - 1];\n if (!node.depth) {\n const depth = this.sliceSerialize(token).length;\n node.depth = depth;\n }\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitsetextheadingtext() {\n this.data.setextHeadingSlurpLineEnding = true;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitsetextheadinglinesequence(token) {\n const node = this.stack[this.stack.length - 1];\n node.depth = this.sliceSerialize(token).codePointAt(0) === 61 ? 1 : 2;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitsetextheading() {\n this.data.setextHeadingSlurpLineEnding = undefined;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onenterdata(token) {\n const node = this.stack[this.stack.length - 1];\n /** @type {Array} */\n const siblings = node.children;\n let tail = siblings[siblings.length - 1];\n if (!tail || tail.type !== 'text') {\n // Add a new text node.\n tail = text();\n tail.position = {\n start: point(token.start),\n // @ts-expect-error: we’ll add `end` later.\n end: undefined\n };\n siblings.push(tail);\n }\n this.stack.push(tail);\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitdata(token) {\n const tail = this.stack.pop();\n tail.value += this.sliceSerialize(token);\n tail.position.end = point(token.end);\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitlineending(token) {\n const context = this.stack[this.stack.length - 1];\n // If we’re at a hard break, include the line ending in there.\n if (this.data.atHardBreak) {\n const tail = context.children[context.children.length - 1];\n tail.position.end = point(token.end);\n this.data.atHardBreak = undefined;\n return;\n }\n if (!this.data.setextHeadingSlurpLineEnding && config.canContainEols.includes(context.type)) {\n onenterdata.call(this, token);\n onexitdata.call(this, token);\n }\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexithardbreak() {\n this.data.atHardBreak = true;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexithtmlflow() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.value = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexithtmltext() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.value = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitcodetext() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.value = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitlink() {\n const node = this.stack[this.stack.length - 1];\n // Note: there are also `identifier` and `label` fields on this link node!\n // These are used / cleaned here.\n\n // To do: clean.\n if (this.data.inReference) {\n /** @type {ReferenceType} */\n const referenceType = this.data.referenceType || 'shortcut';\n node.type += 'Reference';\n // @ts-expect-error: mutate.\n node.referenceType = referenceType;\n // @ts-expect-error: mutate.\n delete node.url;\n delete node.title;\n } else {\n // @ts-expect-error: mutate.\n delete node.identifier;\n // @ts-expect-error: mutate.\n delete node.label;\n }\n this.data.referenceType = undefined;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitimage() {\n const node = this.stack[this.stack.length - 1];\n // Note: there are also `identifier` and `label` fields on this link node!\n // These are used / cleaned here.\n\n // To do: clean.\n if (this.data.inReference) {\n /** @type {ReferenceType} */\n const referenceType = this.data.referenceType || 'shortcut';\n node.type += 'Reference';\n // @ts-expect-error: mutate.\n node.referenceType = referenceType;\n // @ts-expect-error: mutate.\n delete node.url;\n delete node.title;\n } else {\n // @ts-expect-error: mutate.\n delete node.identifier;\n // @ts-expect-error: mutate.\n delete node.label;\n }\n this.data.referenceType = undefined;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitlabeltext(token) {\n const string = this.sliceSerialize(token);\n const ancestor = this.stack[this.stack.length - 2];\n // @ts-expect-error: stash this on the node, as it might become a reference\n // later.\n ancestor.label = decodeString(string);\n // @ts-expect-error: same as above.\n ancestor.identifier = normalizeIdentifier(string).toLowerCase();\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitlabel() {\n const fragment = this.stack[this.stack.length - 1];\n const value = this.resume();\n const node = this.stack[this.stack.length - 1];\n // Assume a reference.\n this.data.inReference = true;\n if (node.type === 'link') {\n /** @type {Array} */\n const children = fragment.children;\n node.children = children;\n } else {\n node.alt = value;\n }\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitresourcedestinationstring() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.url = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitresourcetitlestring() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.title = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitresource() {\n this.data.inReference = undefined;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onenterreference() {\n this.data.referenceType = 'collapsed';\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitreferencestring(token) {\n const label = this.resume();\n const node = this.stack[this.stack.length - 1];\n // @ts-expect-error: stash this on the node, as it might become a reference\n // later.\n node.label = label;\n // @ts-expect-error: same as above.\n node.identifier = normalizeIdentifier(this.sliceSerialize(token)).toLowerCase();\n this.data.referenceType = 'full';\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitcharacterreferencemarker(token) {\n this.data.characterReferenceType = token.type;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcharacterreferencevalue(token) {\n const data = this.sliceSerialize(token);\n const type = this.data.characterReferenceType;\n /** @type {string} */\n let value;\n if (type) {\n value = decodeNumericCharacterReference(data, type === \"characterReferenceMarkerNumeric\" ? 10 : 16);\n this.data.characterReferenceType = undefined;\n } else {\n const result = decodeNamedCharacterReference(data);\n value = result;\n }\n const tail = this.stack[this.stack.length - 1];\n tail.value += value;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcharacterreference(token) {\n const tail = this.stack.pop();\n tail.position.end = point(token.end);\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitautolinkprotocol(token) {\n onexitdata.call(this, token);\n const node = this.stack[this.stack.length - 1];\n node.url = this.sliceSerialize(token);\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitautolinkemail(token) {\n onexitdata.call(this, token);\n const node = this.stack[this.stack.length - 1];\n node.url = 'mailto:' + this.sliceSerialize(token);\n }\n\n //\n // Creaters.\n //\n\n /** @returns {Blockquote} */\n function blockQuote() {\n return {\n type: 'blockquote',\n children: []\n };\n }\n\n /** @returns {Code} */\n function codeFlow() {\n return {\n type: 'code',\n lang: null,\n meta: null,\n value: ''\n };\n }\n\n /** @returns {InlineCode} */\n function codeText() {\n return {\n type: 'inlineCode',\n value: ''\n };\n }\n\n /** @returns {Definition} */\n function definition() {\n return {\n type: 'definition',\n identifier: '',\n label: null,\n title: null,\n url: ''\n };\n }\n\n /** @returns {Emphasis} */\n function emphasis() {\n return {\n type: 'emphasis',\n children: []\n };\n }\n\n /** @returns {Heading} */\n function heading() {\n return {\n type: 'heading',\n // @ts-expect-error `depth` will be set later.\n depth: 0,\n children: []\n };\n }\n\n /** @returns {Break} */\n function hardBreak() {\n return {\n type: 'break'\n };\n }\n\n /** @returns {Html} */\n function html() {\n return {\n type: 'html',\n value: ''\n };\n }\n\n /** @returns {Image} */\n function image() {\n return {\n type: 'image',\n title: null,\n url: '',\n alt: null\n };\n }\n\n /** @returns {Link} */\n function link() {\n return {\n type: 'link',\n title: null,\n url: '',\n children: []\n };\n }\n\n /**\n * @param {Token} token\n * @returns {List}\n */\n function list(token) {\n return {\n type: 'list',\n ordered: token.type === 'listOrdered',\n start: null,\n spread: token._spread,\n children: []\n };\n }\n\n /**\n * @param {Token} token\n * @returns {ListItem}\n */\n function listItem(token) {\n return {\n type: 'listItem',\n spread: token._spread,\n checked: null,\n children: []\n };\n }\n\n /** @returns {Paragraph} */\n function paragraph() {\n return {\n type: 'paragraph',\n children: []\n };\n }\n\n /** @returns {Strong} */\n function strong() {\n return {\n type: 'strong',\n children: []\n };\n }\n\n /** @returns {Text} */\n function text() {\n return {\n type: 'text',\n value: ''\n };\n }\n\n /** @returns {ThematicBreak} */\n function thematicBreak() {\n return {\n type: 'thematicBreak'\n };\n }\n}\n\n/**\n * Copy a point-like value.\n *\n * @param {Point} d\n * Point-like value.\n * @returns {Point}\n * unist point.\n */\nfunction point(d) {\n return {\n line: d.line,\n column: d.column,\n offset: d.offset\n };\n}\n\n/**\n * @param {Config} combined\n * @param {Array | Extension>} extensions\n * @returns {undefined}\n */\nfunction configure(combined, extensions) {\n let index = -1;\n while (++index < extensions.length) {\n const value = extensions[index];\n if (Array.isArray(value)) {\n configure(combined, value);\n } else {\n extension(combined, value);\n }\n }\n}\n\n/**\n * @param {Config} combined\n * @param {Extension} extension\n * @returns {undefined}\n */\nfunction extension(combined, extension) {\n /** @type {keyof Extension} */\n let key;\n for (key in extension) {\n if (own.call(extension, key)) {\n switch (key) {\n case 'canContainEols':\n {\n const right = extension[key];\n if (right) {\n combined[key].push(...right);\n }\n break;\n }\n case 'transforms':\n {\n const right = extension[key];\n if (right) {\n combined[key].push(...right);\n }\n break;\n }\n case 'enter':\n case 'exit':\n {\n const right = extension[key];\n if (right) {\n Object.assign(combined[key], right);\n }\n break;\n }\n // No default\n }\n }\n }\n}\n\n/** @type {OnEnterError} */\nfunction defaultOnError(left, right) {\n if (left) {\n throw new Error('Cannot close `' + left.type + '` (' + stringifyPosition({\n start: left.start,\n end: left.end\n }) + '): a different token (`' + right.type + '`, ' + stringifyPosition({\n start: right.start,\n end: right.end\n }) + ') is open');\n } else {\n throw new Error('Cannot close document, a token (`' + right.type + '`, ' + stringifyPosition({\n start: right.start,\n end: right.end\n }) + ') is still open');\n }\n}","/**\n * @import {Event} from 'micromark-util-types'\n */\n\nimport { subtokenize } from 'micromark-util-subtokenize';\n\n/**\n * @param {Array} events\n * Events.\n * @returns {Array}\n * Events.\n */\nexport function postprocess(events) {\n while (!subtokenize(events)) {\n // Empty\n }\n return events;\n}","/**\n * @import {\n * Create,\n * FullNormalizedExtension,\n * InitialConstruct,\n * ParseContext,\n * ParseOptions\n * } from 'micromark-util-types'\n */\n\nimport { combineExtensions } from 'micromark-util-combine-extensions';\nimport { content } from './initialize/content.js';\nimport { document } from './initialize/document.js';\nimport { flow } from './initialize/flow.js';\nimport { string, text } from './initialize/text.js';\nimport * as defaultConstructs from './constructs.js';\nimport { createTokenizer } from './create-tokenizer.js';\n\n/**\n * @param {ParseOptions | null | undefined} [options]\n * Configuration (optional).\n * @returns {ParseContext}\n * Parser.\n */\nexport function parse(options) {\n const settings = options || {};\n const constructs = /** @type {FullNormalizedExtension} */\n combineExtensions([defaultConstructs, ...(settings.extensions || [])]);\n\n /** @type {ParseContext} */\n const parser = {\n constructs,\n content: create(content),\n defined: [],\n document: create(document),\n flow: create(flow),\n lazy: {},\n string: create(string),\n text: create(text)\n };\n return parser;\n\n /**\n * @param {InitialConstruct} initial\n * Construct to start with.\n * @returns {Create}\n * Create a tokenizer.\n */\n function create(initial) {\n return creator;\n /** @type {Create} */\n function creator(from) {\n return createTokenizer(parser, initial, from);\n }\n }\n}","/**\n * @import {Options, State} from './types.js'\n */\n\nconst own = {}.hasOwnProperty\n\n/**\n * @param {State} base\n * @param {Options} extension\n * @returns {State}\n */\nexport function configure(base, extension) {\n let index = -1\n /** @type {keyof Options} */\n let key\n\n // First do subextensions.\n if (extension.extensions) {\n while (++index < extension.extensions.length) {\n configure(base, extension.extensions[index])\n }\n }\n\n for (key in extension) {\n if (own.call(extension, key)) {\n switch (key) {\n case 'extensions': {\n // Empty.\n break\n }\n\n /* c8 ignore next 4 */\n case 'unsafe': {\n list(base[key], extension[key])\n break\n }\n\n case 'join': {\n list(base[key], extension[key])\n break\n }\n\n case 'handlers': {\n map(base[key], extension[key])\n break\n }\n\n default: {\n // @ts-expect-error: matches.\n base.options[key] = extension[key]\n }\n }\n }\n }\n\n return base\n}\n\n/**\n * @template T\n * @param {Array} left\n * @param {Array | null | undefined} right\n */\nfunction list(left, right) {\n if (right) {\n left.push(...right)\n }\n}\n\n/**\n * @template T\n * @param {Record} left\n * @param {Record | null | undefined} right\n */\nfunction map(left, right) {\n if (right) {\n Object.assign(left, right)\n }\n}\n","/**\n * @import {Join} from 'mdast-util-to-markdown'\n */\n\nimport {formatCodeAsIndented} from './util/format-code-as-indented.js'\nimport {formatHeadingAsSetext} from './util/format-heading-as-setext.js'\n\n/** @type {Array} */\nexport const join = [joinDefaults]\n\n/** @type {Join} */\nfunction joinDefaults(left, right, parent, state) {\n // Indented code after list or another indented code.\n if (\n right.type === 'code' &&\n formatCodeAsIndented(right, state) &&\n (left.type === 'list' ||\n (left.type === right.type && formatCodeAsIndented(left, state)))\n ) {\n return false\n }\n\n // Join children of a list or an item.\n // In which case, `parent` has a `spread` field.\n if ('spread' in parent && typeof parent.spread === 'boolean') {\n if (\n left.type === 'paragraph' &&\n // Two paragraphs.\n (left.type === right.type ||\n right.type === 'definition' ||\n // Paragraph followed by a setext heading.\n (right.type === 'heading' && formatHeadingAsSetext(right, state)))\n ) {\n return\n }\n\n return parent.spread ? 1 : 0\n }\n}\n","/**\n * @import {ConstructName, Unsafe} from 'mdast-util-to-markdown'\n */\n\n/**\n * List of constructs that occur in phrasing (paragraphs, headings), but cannot\n * contain things like attention (emphasis, strong), images, or links.\n * So they sort of cancel each other out.\n * Note: could use a better name.\n *\n * @type {Array}\n */\nconst fullPhrasingSpans = [\n 'autolink',\n 'destinationLiteral',\n 'destinationRaw',\n 'reference',\n 'titleQuote',\n 'titleApostrophe'\n]\n\n/** @type {Array} */\nexport const unsafe = [\n {character: '\\t', after: '[\\\\r\\\\n]', inConstruct: 'phrasing'},\n {character: '\\t', before: '[\\\\r\\\\n]', inConstruct: 'phrasing'},\n {\n character: '\\t',\n inConstruct: ['codeFencedLangGraveAccent', 'codeFencedLangTilde']\n },\n {\n character: '\\r',\n inConstruct: [\n 'codeFencedLangGraveAccent',\n 'codeFencedLangTilde',\n 'codeFencedMetaGraveAccent',\n 'codeFencedMetaTilde',\n 'destinationLiteral',\n 'headingAtx'\n ]\n },\n {\n character: '\\n',\n inConstruct: [\n 'codeFencedLangGraveAccent',\n 'codeFencedLangTilde',\n 'codeFencedMetaGraveAccent',\n 'codeFencedMetaTilde',\n 'destinationLiteral',\n 'headingAtx'\n ]\n },\n {character: ' ', after: '[\\\\r\\\\n]', inConstruct: 'phrasing'},\n {character: ' ', before: '[\\\\r\\\\n]', inConstruct: 'phrasing'},\n {\n character: ' ',\n inConstruct: ['codeFencedLangGraveAccent', 'codeFencedLangTilde']\n },\n // An exclamation mark can start an image, if it is followed by a link or\n // a link reference.\n {\n character: '!',\n after: '\\\\[',\n inConstruct: 'phrasing',\n notInConstruct: fullPhrasingSpans\n },\n // A quote can break out of a title.\n {character: '\"', inConstruct: 'titleQuote'},\n // A number sign could start an ATX heading if it starts a line.\n {atBreak: true, character: '#'},\n {character: '#', inConstruct: 'headingAtx', after: '(?:[\\r\\n]|$)'},\n // Dollar sign and percentage are not used in markdown.\n // An ampersand could start a character reference.\n {character: '&', after: '[#A-Za-z]', inConstruct: 'phrasing'},\n // An apostrophe can break out of a title.\n {character: \"'\", inConstruct: 'titleApostrophe'},\n // A left paren could break out of a destination raw.\n {character: '(', inConstruct: 'destinationRaw'},\n // A left paren followed by `]` could make something into a link or image.\n {\n before: '\\\\]',\n character: '(',\n inConstruct: 'phrasing',\n notInConstruct: fullPhrasingSpans\n },\n // A right paren could start a list item or break out of a destination\n // raw.\n {atBreak: true, before: '\\\\d+', character: ')'},\n {character: ')', inConstruct: 'destinationRaw'},\n // An asterisk can start thematic breaks, list items, emphasis, strong.\n {atBreak: true, character: '*', after: '(?:[ \\t\\r\\n*])'},\n {character: '*', inConstruct: 'phrasing', notInConstruct: fullPhrasingSpans},\n // A plus sign could start a list item.\n {atBreak: true, character: '+', after: '(?:[ \\t\\r\\n])'},\n // A dash can start thematic breaks, list items, and setext heading\n // underlines.\n {atBreak: true, character: '-', after: '(?:[ \\t\\r\\n-])'},\n // A dot could start a list item.\n {atBreak: true, before: '\\\\d+', character: '.', after: '(?:[ \\t\\r\\n]|$)'},\n // Slash, colon, and semicolon are not used in markdown for constructs.\n // A less than can start html (flow or text) or an autolink.\n // HTML could start with an exclamation mark (declaration, cdata, comment),\n // slash (closing tag), question mark (instruction), or a letter (tag).\n // An autolink also starts with a letter.\n // Finally, it could break out of a destination literal.\n {atBreak: true, character: '<', after: '[!/?A-Za-z]'},\n {\n character: '<',\n after: '[!/?A-Za-z]',\n inConstruct: 'phrasing',\n notInConstruct: fullPhrasingSpans\n },\n {character: '<', inConstruct: 'destinationLiteral'},\n // An equals to can start setext heading underlines.\n {atBreak: true, character: '='},\n // A greater than can start block quotes and it can break out of a\n // destination literal.\n {atBreak: true, character: '>'},\n {character: '>', inConstruct: 'destinationLiteral'},\n // Question mark and at sign are not used in markdown for constructs.\n // A left bracket can start definitions, references, labels,\n {atBreak: true, character: '['},\n {character: '[', inConstruct: 'phrasing', notInConstruct: fullPhrasingSpans},\n {character: '[', inConstruct: ['label', 'reference']},\n // A backslash can start an escape (when followed by punctuation) or a\n // hard break (when followed by an eol).\n // Note: typical escapes are handled in `safe`!\n {character: '\\\\', after: '[\\\\r\\\\n]', inConstruct: 'phrasing'},\n // A right bracket can exit labels.\n {character: ']', inConstruct: ['label', 'reference']},\n // Caret is not used in markdown for constructs.\n // An underscore can start emphasis, strong, or a thematic break.\n {atBreak: true, character: '_'},\n {character: '_', inConstruct: 'phrasing', notInConstruct: fullPhrasingSpans},\n // A grave accent can start code (fenced or text), or it can break out of\n // a grave accent code fence.\n {atBreak: true, character: '`'},\n {\n character: '`',\n inConstruct: ['codeFencedLangGraveAccent', 'codeFencedMetaGraveAccent']\n },\n {character: '`', inConstruct: 'phrasing', notInConstruct: fullPhrasingSpans},\n // Left brace, vertical bar, right brace are not used in markdown for\n // constructs.\n // A tilde can start code (fenced).\n {atBreak: true, character: '~'}\n]\n","/**\n * @import {AssociationId} from '../types.js'\n */\n\nimport {decodeString} from 'micromark-util-decode-string'\n\n/**\n * Get an identifier from an association to match it to others.\n *\n * Associations are nodes that match to something else through an ID:\n * .\n *\n * The `label` of an association is the string value: character escapes and\n * references work, and casing is intact.\n * The `identifier` is used to match one association to another:\n * controversially, character escapes and references don’t work in this\n * matching: `©` does not match `©`, and `\\+` does not match `+`.\n *\n * But casing is ignored (and whitespace) is trimmed and collapsed: ` A\\nb`\n * matches `a b`.\n * So, we do prefer the label when figuring out how we’re going to serialize:\n * it has whitespace, casing, and we can ignore most useless character\n * escapes and all character references.\n *\n * @type {AssociationId}\n */\nexport function association(node) {\n if (node.label || !node.identifier) {\n return node.label || ''\n }\n\n return decodeString(node.identifier)\n}\n","/**\n * @import {CompilePattern} from '../types.js'\n */\n\n/**\n * @type {CompilePattern}\n */\nexport function compilePattern(pattern) {\n if (!pattern._compiled) {\n const before =\n (pattern.atBreak ? '[\\\\r\\\\n][\\\\t ]*' : '') +\n (pattern.before ? '(?:' + pattern.before + ')' : '')\n\n pattern._compiled = new RegExp(\n (before ? '(' + before + ')' : '') +\n (/[|\\\\{}()[\\]^$+*?.-]/.test(pattern.character) ? '\\\\' : '') +\n pattern.character +\n (pattern.after ? '(?:' + pattern.after + ')' : ''),\n 'g'\n )\n }\n\n return pattern._compiled\n}\n","/**\n * @import {State} from 'mdast-util-to-markdown'\n * @import {FlowChildren, FlowParents, TrackFields} from '../types.js'\n */\n\n/**\n * @param {FlowParents} parent\n * Parent of flow nodes.\n * @param {State} state\n * Info passed around about the current state.\n * @param {TrackFields} info\n * Info on where we are in the document we are generating.\n * @returns {string}\n * Serialized children, joined by (blank) lines.\n */\nexport function containerFlow(parent, state, info) {\n const indexStack = state.indexStack\n const children = parent.children || []\n const tracker = state.createTracker(info)\n /** @type {Array} */\n const results = []\n let index = -1\n\n indexStack.push(-1)\n\n while (++index < children.length) {\n const child = children[index]\n\n indexStack[indexStack.length - 1] = index\n\n results.push(\n tracker.move(\n state.handle(child, parent, state, {\n before: '\\n',\n after: '\\n',\n ...tracker.current()\n })\n )\n )\n\n if (child.type !== 'list') {\n state.bulletLastUsed = undefined\n }\n\n if (index < children.length - 1) {\n results.push(\n tracker.move(between(child, children[index + 1], parent, state))\n )\n }\n }\n\n indexStack.pop()\n\n return results.join('')\n}\n\n/**\n * @param {FlowChildren} left\n * @param {FlowChildren} right\n * @param {FlowParents} parent\n * @param {State} state\n * @returns {string}\n */\nfunction between(left, right, parent, state) {\n let index = state.join.length\n\n while (index--) {\n const result = state.join[index](left, right, parent, state)\n\n if (result === true || result === 1) {\n break\n }\n\n if (typeof result === 'number') {\n return '\\n'.repeat(1 + result)\n }\n\n if (result === false) {\n return '\\n\\n\\n\\n'\n }\n }\n\n return '\\n\\n'\n}\n","/**\n * @import {IndentLines} from '../types.js'\n */\n\nconst eol = /\\r?\\n|\\r/g\n\n/**\n * @type {IndentLines}\n */\nexport function indentLines(value, map) {\n /** @type {Array} */\n const result = []\n let start = 0\n let line = 0\n /** @type {RegExpExecArray | null} */\n let match\n\n while ((match = eol.exec(value))) {\n one(value.slice(start, match.index))\n result.push(match[0])\n start = match.index + match[0].length\n line++\n }\n\n one(value.slice(start))\n\n return result.join('')\n\n /**\n * @param {string} value\n */\n function one(value) {\n result.push(map(value, line, !value))\n }\n}\n","/**\n * @import {SafeConfig, State} from 'mdast-util-to-markdown'\n */\n\nimport {encodeCharacterReference} from './encode-character-reference.js'\nimport {patternInScope} from './pattern-in-scope.js'\n\n/**\n * Make a string safe for embedding in markdown constructs.\n *\n * In markdown, almost all punctuation characters can, in certain cases,\n * result in something.\n * Whether they do is highly subjective to where they happen and in what\n * they happen.\n *\n * To solve this, `mdast-util-to-markdown` tracks:\n *\n * * Characters before and after something;\n * * What “constructs” we are in.\n *\n * This information is then used by this function to escape or encode\n * special characters.\n *\n * @param {State} state\n * Info passed around about the current state.\n * @param {string | null | undefined} input\n * Raw value to make safe.\n * @param {SafeConfig} config\n * Configuration.\n * @returns {string}\n * Serialized markdown safe for embedding.\n */\nexport function safe(state, input, config) {\n const value = (config.before || '') + (input || '') + (config.after || '')\n /** @type {Array} */\n const positions = []\n /** @type {Array} */\n const result = []\n /** @type {Record} */\n const infos = {}\n let index = -1\n\n while (++index < state.unsafe.length) {\n const pattern = state.unsafe[index]\n\n if (!patternInScope(state.stack, pattern)) {\n continue\n }\n\n const expression = state.compilePattern(pattern)\n /** @type {RegExpExecArray | null} */\n let match\n\n while ((match = expression.exec(value))) {\n const before = 'before' in pattern || Boolean(pattern.atBreak)\n const after = 'after' in pattern\n const position = match.index + (before ? match[1].length : 0)\n\n if (positions.includes(position)) {\n if (infos[position].before && !before) {\n infos[position].before = false\n }\n\n if (infos[position].after && !after) {\n infos[position].after = false\n }\n } else {\n positions.push(position)\n infos[position] = {before, after}\n }\n }\n }\n\n positions.sort(numerical)\n\n let start = config.before ? config.before.length : 0\n const end = value.length - (config.after ? config.after.length : 0)\n index = -1\n\n while (++index < positions.length) {\n const position = positions[index]\n\n // Character before or after matched:\n if (position < start || position >= end) {\n continue\n }\n\n // If this character is supposed to be escaped because it has a condition on\n // the next character, and the next character is definitly being escaped,\n // then skip this escape.\n if (\n (position + 1 < end &&\n positions[index + 1] === position + 1 &&\n infos[position].after &&\n !infos[position + 1].before &&\n !infos[position + 1].after) ||\n (positions[index - 1] === position - 1 &&\n infos[position].before &&\n !infos[position - 1].before &&\n !infos[position - 1].after)\n ) {\n continue\n }\n\n if (start !== position) {\n // If we have to use a character reference, an ampersand would be more\n // correct, but as backslashes only care about punctuation, either will\n // do the trick\n result.push(escapeBackslashes(value.slice(start, position), '\\\\'))\n }\n\n start = position\n\n if (\n /[!-/:-@[-`{-~]/.test(value.charAt(position)) &&\n (!config.encode || !config.encode.includes(value.charAt(position)))\n ) {\n // Character escape.\n result.push('\\\\')\n } else {\n // Character reference.\n result.push(encodeCharacterReference(value.charCodeAt(position)))\n start++\n }\n }\n\n result.push(escapeBackslashes(value.slice(start, end), config.after))\n\n return result.join('')\n}\n\n/**\n * @param {number} a\n * @param {number} b\n * @returns {number}\n */\nfunction numerical(a, b) {\n return a - b\n}\n\n/**\n * @param {string} value\n * @param {string} after\n * @returns {string}\n */\nfunction escapeBackslashes(value, after) {\n const expression = /\\\\(?=[!-/:-@[-`{-~])/g\n /** @type {Array} */\n const positions = []\n /** @type {Array} */\n const results = []\n const whole = value + after\n let index = -1\n let start = 0\n /** @type {RegExpExecArray | null} */\n let match\n\n while ((match = expression.exec(whole))) {\n positions.push(match.index)\n }\n\n while (++index < positions.length) {\n if (start !== positions[index]) {\n results.push(value.slice(start, positions[index]))\n }\n\n results.push('\\\\')\n start = positions[index]\n }\n\n results.push(value.slice(start))\n\n return results.join('')\n}\n","/**\n * @import {CreateTracker, TrackCurrent, TrackMove, TrackShift} from '../types.js'\n */\n\n/**\n * Track positional info in the output.\n *\n * @type {CreateTracker}\n */\nexport function track(config) {\n // Defaults are used to prevent crashes when older utilities somehow activate\n // this code.\n /* c8 ignore next 5 */\n const options = config || {}\n const now = options.now || {}\n let lineShift = options.lineShift || 0\n let line = now.line || 1\n let column = now.column || 1\n\n return {move, current, shift}\n\n /**\n * Get the current tracked info.\n *\n * @type {TrackCurrent}\n */\n function current() {\n return {now: {line, column}, lineShift}\n }\n\n /**\n * Define an increased line shift (the typical indent for lines).\n *\n * @type {TrackShift}\n */\n function shift(value) {\n lineShift += value\n }\n\n /**\n * Move past some generated markdown.\n *\n * @type {TrackMove}\n */\n function move(input) {\n // eslint-disable-next-line unicorn/prefer-default-parameters\n const value = input || ''\n const chunks = value.split(/\\r?\\n|\\r/g)\n const tail = chunks[chunks.length - 1]\n line += chunks.length - 1\n column =\n chunks.length === 1 ? column + tail.length : 1 + tail.length + lineShift\n return value\n }\n}\n","/**\n * @import {Info, Join, Options, SafeConfig, State} from 'mdast-util-to-markdown'\n * @import {Nodes} from 'mdast'\n * @import {Enter, FlowParents, PhrasingParents, TrackFields} from './types.js'\n */\n\nimport {zwitch} from 'zwitch'\nimport {configure} from './configure.js'\nimport {handle as handlers} from './handle/index.js'\nimport {join} from './join.js'\nimport {unsafe} from './unsafe.js'\nimport {association} from './util/association.js'\nimport {compilePattern} from './util/compile-pattern.js'\nimport {containerPhrasing} from './util/container-phrasing.js'\nimport {containerFlow} from './util/container-flow.js'\nimport {indentLines} from './util/indent-lines.js'\nimport {safe} from './util/safe.js'\nimport {track} from './util/track.js'\n\n/**\n * Turn an mdast syntax tree into markdown.\n *\n * @param {Nodes} tree\n * Tree to serialize.\n * @param {Options | null | undefined} [options]\n * Configuration (optional).\n * @returns {string}\n * Serialized markdown representing `tree`.\n */\nexport function toMarkdown(tree, options) {\n const settings = options || {}\n /** @type {State} */\n const state = {\n associationId: association,\n containerPhrasing: containerPhrasingBound,\n containerFlow: containerFlowBound,\n createTracker: track,\n compilePattern,\n enter,\n // @ts-expect-error: GFM / frontmatter are typed in `mdast` but not defined\n // here.\n handlers: {...handlers},\n // @ts-expect-error: add `handle` in a second.\n handle: undefined,\n indentLines,\n indexStack: [],\n join: [...join],\n options: {},\n safe: safeBound,\n stack: [],\n unsafe: [...unsafe]\n }\n\n configure(state, settings)\n\n if (state.options.tightDefinitions) {\n state.join.push(joinDefinition)\n }\n\n state.handle = zwitch('type', {\n invalid,\n unknown,\n handlers: state.handlers\n })\n\n let result = state.handle(tree, undefined, state, {\n before: '\\n',\n after: '\\n',\n now: {line: 1, column: 1},\n lineShift: 0\n })\n\n if (\n result &&\n result.charCodeAt(result.length - 1) !== 10 &&\n result.charCodeAt(result.length - 1) !== 13\n ) {\n result += '\\n'\n }\n\n return result\n\n /** @type {Enter} */\n function enter(name) {\n state.stack.push(name)\n return exit\n\n /**\n * @returns {undefined}\n */\n function exit() {\n state.stack.pop()\n }\n }\n}\n\n/**\n * @param {unknown} value\n * @returns {never}\n */\nfunction invalid(value) {\n throw new Error('Cannot handle value `' + value + '`, expected node')\n}\n\n/**\n * @param {unknown} value\n * @returns {never}\n */\nfunction unknown(value) {\n // Always a node.\n const node = /** @type {Nodes} */ (value)\n throw new Error('Cannot handle unknown node `' + node.type + '`')\n}\n\n/** @type {Join} */\nfunction joinDefinition(left, right) {\n // No blank line between adjacent definitions.\n if (left.type === 'definition' && left.type === right.type) {\n return 0\n }\n}\n\n/**\n * Serialize the children of a parent that contains phrasing children.\n *\n * These children will be joined flush together.\n *\n * @this {State}\n * Info passed around about the current state.\n * @param {PhrasingParents} parent\n * Parent of flow nodes.\n * @param {Info} info\n * Info on where we are in the document we are generating.\n * @returns {string}\n * Serialized children, joined together.\n */\nfunction containerPhrasingBound(parent, info) {\n return containerPhrasing(parent, this, info)\n}\n\n/**\n * Serialize the children of a parent that contains flow children.\n *\n * These children will typically be joined by blank lines.\n * What they are joined by exactly is defined by `Join` functions.\n *\n * @this {State}\n * Info passed around about the current state.\n * @param {FlowParents} parent\n * Parent of flow nodes.\n * @param {TrackFields} info\n * Info on where we are in the document we are generating.\n * @returns {string}\n * Serialized children, joined by (blank) lines.\n */\nfunction containerFlowBound(parent, info) {\n return containerFlow(parent, this, info)\n}\n\n/**\n * Make a string safe for embedding in markdown constructs.\n *\n * In markdown, almost all punctuation characters can, in certain cases,\n * result in something.\n * Whether they do is highly subjective to where they happen and in what\n * they happen.\n *\n * To solve this, `mdast-util-to-markdown` tracks:\n *\n * * Characters before and after something;\n * * What “constructs” we are in.\n *\n * This information is then used by this function to escape or encode\n * special characters.\n *\n * @this {State}\n * Info passed around about the current state.\n * @param {string | null | undefined} value\n * Raw value to make safe.\n * @param {SafeConfig} config\n * Configuration.\n * @returns {string}\n * Serialized markdown safe for embedding.\n */\nfunction safeBound(value, config) {\n return safe(this, value, config)\n}\n","/**\n * @import {Handle, Info, State} from 'mdast-util-to-markdown'\n * @import {PhrasingParents} from '../types.js'\n */\n\nimport {encodeCharacterReference} from './encode-character-reference.js'\n\n/**\n * Serialize the children of a parent that contains phrasing children.\n *\n * These children will be joined flush together.\n *\n * @param {PhrasingParents} parent\n * Parent of flow nodes.\n * @param {State} state\n * Info passed around about the current state.\n * @param {Info} info\n * Info on where we are in the document we are generating.\n * @returns {string}\n * Serialized children, joined together.\n */\nexport function containerPhrasing(parent, state, info) {\n const indexStack = state.indexStack\n const children = parent.children || []\n /** @type {Array} */\n const results = []\n let index = -1\n let before = info.before\n /** @type {string | undefined} */\n let encodeAfter\n\n indexStack.push(-1)\n let tracker = state.createTracker(info)\n\n while (++index < children.length) {\n const child = children[index]\n /** @type {string} */\n let after\n\n indexStack[indexStack.length - 1] = index\n\n if (index + 1 < children.length) {\n /** @type {Handle} */\n // @ts-expect-error: hush, it’s actually a `zwitch`.\n let handle = state.handle.handlers[children[index + 1].type]\n /** @type {Handle} */\n // @ts-expect-error: hush, it’s actually a `zwitch`.\n if (handle && handle.peek) handle = handle.peek\n after = handle\n ? handle(children[index + 1], parent, state, {\n before: '',\n after: '',\n ...tracker.current()\n }).charAt(0)\n : ''\n } else {\n after = info.after\n }\n\n // In some cases, html (text) can be found in phrasing right after an eol.\n // When we’d serialize that, in most cases that would be seen as html\n // (flow).\n // As we can’t escape or so to prevent it from happening, we take a somewhat\n // reasonable approach: replace that eol with a space.\n // See: \n if (\n results.length > 0 &&\n (before === '\\r' || before === '\\n') &&\n child.type === 'html'\n ) {\n results[results.length - 1] = results[results.length - 1].replace(\n /(\\r?\\n|\\r)$/,\n ' '\n )\n before = ' '\n\n // To do: does this work to reset tracker?\n tracker = state.createTracker(info)\n tracker.move(results.join(''))\n }\n\n let value = state.handle(child, parent, state, {\n ...tracker.current(),\n after,\n before\n })\n\n // If we had to encode the first character after the previous node and it’s\n // still the same character,\n // encode it.\n if (encodeAfter && encodeAfter === value.slice(0, 1)) {\n value =\n encodeCharacterReference(encodeAfter.charCodeAt(0)) + value.slice(1)\n }\n\n const encodingInfo = state.attentionEncodeSurroundingInfo\n state.attentionEncodeSurroundingInfo = undefined\n encodeAfter = undefined\n\n // If we have to encode the first character before the current node and\n // it’s still the same character,\n // encode it.\n if (encodingInfo) {\n if (\n results.length > 0 &&\n encodingInfo.before &&\n before === results[results.length - 1].slice(-1)\n ) {\n results[results.length - 1] =\n results[results.length - 1].slice(0, -1) +\n encodeCharacterReference(before.charCodeAt(0))\n }\n\n if (encodingInfo.after) encodeAfter = after\n }\n\n tracker.move(value)\n results.push(value)\n before = value.slice(-1)\n }\n\n indexStack.pop()\n\n return results.join('')\n}\n","/**\n * Throw a given error.\n *\n * @param {Error|null|undefined} [error]\n * Maybe error.\n * @returns {asserts error is null|undefined}\n */\nexport function bail(error) {\n if (error) {\n throw error\n }\n}\n","export default function isPlainObject(value) {\n\tif (typeof value !== 'object' || value === null) {\n\t\treturn false;\n\t}\n\n\tconst prototype = Object.getPrototypeOf(value);\n\treturn (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in value) && !(Symbol.iterator in value);\n}\n","// To do: remove `void`s\n// To do: remove `null` from output of our APIs, allow it as user APIs.\n\n/**\n * @typedef {(error?: Error | null | undefined, ...output: Array) => void} Callback\n * Callback.\n *\n * @typedef {(...input: Array) => any} Middleware\n * Ware.\n *\n * @typedef Pipeline\n * Pipeline.\n * @property {Run} run\n * Run the pipeline.\n * @property {Use} use\n * Add middleware.\n *\n * @typedef {(...input: Array) => void} Run\n * Call all middleware.\n *\n * Calls `done` on completion with either an error or the output of the\n * last middleware.\n *\n * > 👉 **Note**: as the length of input defines whether async functions get a\n * > `next` function,\n * > it’s recommended to keep `input` at one value normally.\n\n *\n * @typedef {(fn: Middleware) => Pipeline} Use\n * Add middleware.\n */\n\n/**\n * Create new middleware.\n *\n * @returns {Pipeline}\n * Pipeline.\n */\nexport function trough() {\n /** @type {Array} */\n const fns = []\n /** @type {Pipeline} */\n const pipeline = {run, use}\n\n return pipeline\n\n /** @type {Run} */\n function run(...values) {\n let middlewareIndex = -1\n /** @type {Callback} */\n const callback = values.pop()\n\n if (typeof callback !== 'function') {\n throw new TypeError('Expected function as last argument, not ' + callback)\n }\n\n next(null, ...values)\n\n /**\n * Run the next `fn`, or we’re done.\n *\n * @param {Error | null | undefined} error\n * @param {Array} output\n */\n function next(error, ...output) {\n const fn = fns[++middlewareIndex]\n let index = -1\n\n if (error) {\n callback(error)\n return\n }\n\n // Copy non-nullish input into values.\n while (++index < values.length) {\n if (output[index] === null || output[index] === undefined) {\n output[index] = values[index]\n }\n }\n\n // Save the newly created `output` for the next call.\n values = output\n\n // Next or done.\n if (fn) {\n wrap(fn, next)(...output)\n } else {\n callback(null, ...output)\n }\n }\n }\n\n /** @type {Use} */\n function use(middelware) {\n if (typeof middelware !== 'function') {\n throw new TypeError(\n 'Expected `middelware` to be a function, not ' + middelware\n )\n }\n\n fns.push(middelware)\n return pipeline\n }\n}\n\n/**\n * Wrap `middleware` into a uniform interface.\n *\n * You can pass all input to the resulting function.\n * `callback` is then called with the output of `middleware`.\n *\n * If `middleware` accepts more arguments than the later given in input,\n * an extra `done` function is passed to it after that input,\n * which must be called by `middleware`.\n *\n * The first value in `input` is the main input value.\n * All other input values are the rest input values.\n * The values given to `callback` are the input values,\n * merged with every non-nullish output value.\n *\n * * if `middleware` throws an error,\n * returns a promise that is rejected,\n * or calls the given `done` function with an error,\n * `callback` is called with that error\n * * if `middleware` returns a value or returns a promise that is resolved,\n * that value is the main output value\n * * if `middleware` calls `done`,\n * all non-nullish values except for the first one (the error) overwrite the\n * output values\n *\n * @param {Middleware} middleware\n * Function to wrap.\n * @param {Callback} callback\n * Callback called with the output of `middleware`.\n * @returns {Run}\n * Wrapped middleware.\n */\nexport function wrap(middleware, callback) {\n /** @type {boolean} */\n let called\n\n return wrapped\n\n /**\n * Call `middleware`.\n * @this {any}\n * @param {Array} parameters\n * @returns {void}\n */\n function wrapped(...parameters) {\n const fnExpectsCallback = middleware.length > parameters.length\n /** @type {any} */\n let result\n\n if (fnExpectsCallback) {\n parameters.push(done)\n }\n\n try {\n result = middleware.apply(this, parameters)\n } catch (error) {\n const exception = /** @type {Error} */ (error)\n\n // Well, this is quite the pickle.\n // `middleware` received a callback and called it synchronously, but that\n // threw an error.\n // The only thing left to do is to throw the thing instead.\n if (fnExpectsCallback && called) {\n throw exception\n }\n\n return done(exception)\n }\n\n if (!fnExpectsCallback) {\n if (result && result.then && typeof result.then === 'function') {\n result.then(then, done)\n } else if (result instanceof Error) {\n done(result)\n } else {\n then(result)\n }\n }\n }\n\n /**\n * Call `callback`, only once.\n *\n * @type {Callback}\n */\n function done(error, ...output) {\n if (!called) {\n called = true\n callback(error, ...output)\n }\n }\n\n /**\n * Call `done` with one value.\n *\n * @param {any} [value]\n */\n function then(value) {\n done(null, value)\n }\n}\n","/**\n * @typedef {import('unist').Node} Node\n * @typedef {import('unist').Point} Point\n * @typedef {import('unist').Position} Position\n */\n\n/**\n * @typedef NodeLike\n * @property {string} type\n * @property {PositionLike | null | undefined} [position]\n *\n * @typedef PointLike\n * @property {number | null | undefined} [line]\n * @property {number | null | undefined} [column]\n * @property {number | null | undefined} [offset]\n *\n * @typedef PositionLike\n * @property {PointLike | null | undefined} [start]\n * @property {PointLike | null | undefined} [end]\n */\n\n/**\n * Serialize the positional info of a point, position (start and end points),\n * or node.\n *\n * @param {Node | NodeLike | Point | PointLike | Position | PositionLike | null | undefined} [value]\n * Node, position, or point.\n * @returns {string}\n * Pretty printed positional info of a node (`string`).\n *\n * In the format of a range `ls:cs-le:ce` (when given `node` or `position`)\n * or a point `l:c` (when given `point`), where `l` stands for line, `c` for\n * column, `s` for `start`, and `e` for end.\n * An empty string (`''`) is returned if the given value is neither `node`,\n * `position`, nor `point`.\n */\nexport function stringifyPosition(value) {\n // Nothing.\n if (!value || typeof value !== 'object') {\n return ''\n }\n\n // Node.\n if ('position' in value || 'type' in value) {\n return position(value.position)\n }\n\n // Position.\n if ('start' in value || 'end' in value) {\n return position(value)\n }\n\n // Point.\n if ('line' in value || 'column' in value) {\n return point(value)\n }\n\n // ?\n return ''\n}\n\n/**\n * @param {Point | PointLike | null | undefined} point\n * @returns {string}\n */\nfunction point(point) {\n return index(point && point.line) + ':' + index(point && point.column)\n}\n\n/**\n * @param {Position | PositionLike | null | undefined} pos\n * @returns {string}\n */\nfunction position(pos) {\n return point(pos && pos.start) + '-' + point(pos && pos.end)\n}\n\n/**\n * @param {number | null | undefined} value\n * @returns {number}\n */\nfunction index(value) {\n return value && typeof value === 'number' ? value : 1\n}\n","/**\n * @typedef {import('unist').Node} Node\n * @typedef {import('unist').Point} Point\n * @typedef {import('unist').Position} Position\n */\n\n/**\n * @typedef {object & {type: string, position?: Position | undefined}} NodeLike\n *\n * @typedef Options\n * Configuration.\n * @property {Array | null | undefined} [ancestors]\n * Stack of (inclusive) ancestor nodes surrounding the message (optional).\n * @property {Error | null | undefined} [cause]\n * Original error cause of the message (optional).\n * @property {Point | Position | null | undefined} [place]\n * Place of message (optional).\n * @property {string | null | undefined} [ruleId]\n * Category of message (optional, example: `'my-rule'`).\n * @property {string | null | undefined} [source]\n * Namespace of who sent the message (optional, example: `'my-package'`).\n */\n\nimport {stringifyPosition} from 'unist-util-stringify-position'\n\n/**\n * Message.\n */\nexport class VFileMessage extends Error {\n /**\n * Create a message for `reason`.\n *\n * > 🪦 **Note**: also has obsolete signatures.\n *\n * @overload\n * @param {string} reason\n * @param {Options | null | undefined} [options]\n * @returns\n *\n * @overload\n * @param {string} reason\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns\n *\n * @overload\n * @param {string} reason\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns\n *\n * @overload\n * @param {string} reason\n * @param {string | null | undefined} [origin]\n * @returns\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {string | null | undefined} [origin]\n * @returns\n *\n * @param {Error | VFileMessage | string} causeOrReason\n * Reason for message, should use markdown.\n * @param {Node | NodeLike | Options | Point | Position | string | null | undefined} [optionsOrParentOrPlace]\n * Configuration (optional).\n * @param {string | null | undefined} [origin]\n * Place in code where the message originates (example:\n * `'my-package:my-rule'` or `'my-rule'`).\n * @returns\n * Instance of `VFileMessage`.\n */\n // eslint-disable-next-line complexity\n constructor(causeOrReason, optionsOrParentOrPlace, origin) {\n super()\n\n if (typeof optionsOrParentOrPlace === 'string') {\n origin = optionsOrParentOrPlace\n optionsOrParentOrPlace = undefined\n }\n\n /** @type {string} */\n let reason = ''\n /** @type {Options} */\n let options = {}\n let legacyCause = false\n\n if (optionsOrParentOrPlace) {\n // Point.\n if (\n 'line' in optionsOrParentOrPlace &&\n 'column' in optionsOrParentOrPlace\n ) {\n options = {place: optionsOrParentOrPlace}\n }\n // Position.\n else if (\n 'start' in optionsOrParentOrPlace &&\n 'end' in optionsOrParentOrPlace\n ) {\n options = {place: optionsOrParentOrPlace}\n }\n // Node.\n else if ('type' in optionsOrParentOrPlace) {\n options = {\n ancestors: [optionsOrParentOrPlace],\n place: optionsOrParentOrPlace.position\n }\n }\n // Options.\n else {\n options = {...optionsOrParentOrPlace}\n }\n }\n\n if (typeof causeOrReason === 'string') {\n reason = causeOrReason\n }\n // Error.\n else if (!options.cause && causeOrReason) {\n legacyCause = true\n reason = causeOrReason.message\n options.cause = causeOrReason\n }\n\n if (!options.ruleId && !options.source && typeof origin === 'string') {\n const index = origin.indexOf(':')\n\n if (index === -1) {\n options.ruleId = origin\n } else {\n options.source = origin.slice(0, index)\n options.ruleId = origin.slice(index + 1)\n }\n }\n\n if (!options.place && options.ancestors && options.ancestors) {\n const parent = options.ancestors[options.ancestors.length - 1]\n\n if (parent) {\n options.place = parent.position\n }\n }\n\n const start =\n options.place && 'start' in options.place\n ? options.place.start\n : options.place\n\n /* eslint-disable no-unused-expressions */\n /**\n * Stack of ancestor nodes surrounding the message.\n *\n * @type {Array | undefined}\n */\n this.ancestors = options.ancestors || undefined\n\n /**\n * Original error cause of the message.\n *\n * @type {Error | undefined}\n */\n this.cause = options.cause || undefined\n\n /**\n * Starting column of message.\n *\n * @type {number | undefined}\n */\n this.column = start ? start.column : undefined\n\n /**\n * State of problem.\n *\n * * `true` — error, file not usable\n * * `false` — warning, change may be needed\n * * `undefined` — change likely not needed\n *\n * @type {boolean | null | undefined}\n */\n this.fatal = undefined\n\n /**\n * Path of a file (used throughout the `VFile` ecosystem).\n *\n * @type {string | undefined}\n */\n this.file\n\n // Field from `Error`.\n /**\n * Reason for message.\n *\n * @type {string}\n */\n this.message = reason\n\n /**\n * Starting line of error.\n *\n * @type {number | undefined}\n */\n this.line = start ? start.line : undefined\n\n // Field from `Error`.\n /**\n * Serialized positional info of message.\n *\n * On normal errors, this would be something like `ParseError`, buit in\n * `VFile` messages we use this space to show where an error happened.\n */\n this.name = stringifyPosition(options.place) || '1:1'\n\n /**\n * Place of message.\n *\n * @type {Point | Position | undefined}\n */\n this.place = options.place || undefined\n\n /**\n * Reason for message, should use markdown.\n *\n * @type {string}\n */\n this.reason = this.message\n\n /**\n * Category of message (example: `'my-rule'`).\n *\n * @type {string | undefined}\n */\n this.ruleId = options.ruleId || undefined\n\n /**\n * Namespace of message (example: `'my-package'`).\n *\n * @type {string | undefined}\n */\n this.source = options.source || undefined\n\n // Field from `Error`.\n /**\n * Stack of message.\n *\n * This is used by normal errors to show where something happened in\n * programming code, irrelevant for `VFile` messages,\n *\n * @type {string}\n */\n this.stack =\n legacyCause && options.cause && typeof options.cause.stack === 'string'\n ? options.cause.stack\n : ''\n\n // The following fields are “well known”.\n // Not standard.\n // Feel free to add other non-standard fields to your messages.\n\n /**\n * Specify the source value that’s being reported, which is deemed\n * incorrect.\n *\n * @type {string | undefined}\n */\n this.actual\n\n /**\n * Suggest acceptable values that can be used instead of `actual`.\n *\n * @type {Array | undefined}\n */\n this.expected\n\n /**\n * Long form description of the message (you should use markdown).\n *\n * @type {string | undefined}\n */\n this.note\n\n /**\n * Link to docs for the message.\n *\n * > 👉 **Note**: this must be an absolute URL that can be passed as `x`\n * > to `new URL(x)`.\n *\n * @type {string | undefined}\n */\n this.url\n /* eslint-enable no-unused-expressions */\n }\n}\n\nVFileMessage.prototype.file = ''\nVFileMessage.prototype.name = ''\nVFileMessage.prototype.reason = ''\nVFileMessage.prototype.message = ''\nVFileMessage.prototype.stack = ''\nVFileMessage.prototype.column = undefined\nVFileMessage.prototype.line = undefined\nVFileMessage.prototype.ancestors = undefined\nVFileMessage.prototype.cause = undefined\nVFileMessage.prototype.fatal = undefined\nVFileMessage.prototype.place = undefined\nVFileMessage.prototype.ruleId = undefined\nVFileMessage.prototype.source = undefined\n","// A derivative work based on:\n// .\n// Which is licensed:\n//\n// MIT License\n//\n// Copyright (c) 2013 James Halliday\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy of\n// this software and associated documentation files (the \"Software\"), to deal in\n// the Software without restriction, including without limitation the rights to\n// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\n// the Software, and to permit persons to whom the Software is furnished to do so,\n// subject to the following conditions:\n//\n// The above copyright notice and this permission notice shall be included in all\n// copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\n// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\n// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\n// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\n// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n// A derivative work based on:\n//\n// Parts of that are extracted from Node’s internal `path` module:\n// .\n// Which is licensed:\n//\n// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\nexport const minpath = {basename, dirname, extname, join, sep: '/'}\n\n/* eslint-disable max-depth, complexity */\n\n/**\n * Get the basename from a path.\n *\n * @param {string} path\n * File path.\n * @param {string | null | undefined} [extname]\n * Extension to strip.\n * @returns {string}\n * Stem or basename.\n */\nfunction basename(path, extname) {\n if (extname !== undefined && typeof extname !== 'string') {\n throw new TypeError('\"ext\" argument must be a string')\n }\n\n assertPath(path)\n let start = 0\n let end = -1\n let index = path.length\n /** @type {boolean | undefined} */\n let seenNonSlash\n\n if (\n extname === undefined ||\n extname.length === 0 ||\n extname.length > path.length\n ) {\n while (index--) {\n if (path.codePointAt(index) === 47 /* `/` */) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now.\n if (seenNonSlash) {\n start = index + 1\n break\n }\n } else if (end < 0) {\n // We saw the first non-path separator, mark this as the end of our\n // path component.\n seenNonSlash = true\n end = index + 1\n }\n }\n\n return end < 0 ? '' : path.slice(start, end)\n }\n\n if (extname === path) {\n return ''\n }\n\n let firstNonSlashEnd = -1\n let extnameIndex = extname.length - 1\n\n while (index--) {\n if (path.codePointAt(index) === 47 /* `/` */) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now.\n if (seenNonSlash) {\n start = index + 1\n break\n }\n } else {\n if (firstNonSlashEnd < 0) {\n // We saw the first non-path separator, remember this index in case\n // we need it if the extension ends up not matching.\n seenNonSlash = true\n firstNonSlashEnd = index + 1\n }\n\n if (extnameIndex > -1) {\n // Try to match the explicit extension.\n if (path.codePointAt(index) === extname.codePointAt(extnameIndex--)) {\n if (extnameIndex < 0) {\n // We matched the extension, so mark this as the end of our path\n // component\n end = index\n }\n } else {\n // Extension does not match, so our result is the entire path\n // component\n extnameIndex = -1\n end = firstNonSlashEnd\n }\n }\n }\n }\n\n if (start === end) {\n end = firstNonSlashEnd\n } else if (end < 0) {\n end = path.length\n }\n\n return path.slice(start, end)\n}\n\n/**\n * Get the dirname from a path.\n *\n * @param {string} path\n * File path.\n * @returns {string}\n * File path.\n */\nfunction dirname(path) {\n assertPath(path)\n\n if (path.length === 0) {\n return '.'\n }\n\n let end = -1\n let index = path.length\n /** @type {boolean | undefined} */\n let unmatchedSlash\n\n // Prefix `--` is important to not run on `0`.\n while (--index) {\n if (path.codePointAt(index) === 47 /* `/` */) {\n if (unmatchedSlash) {\n end = index\n break\n }\n } else if (!unmatchedSlash) {\n // We saw the first non-path separator\n unmatchedSlash = true\n }\n }\n\n return end < 0\n ? path.codePointAt(0) === 47 /* `/` */\n ? '/'\n : '.'\n : end === 1 && path.codePointAt(0) === 47 /* `/` */\n ? '//'\n : path.slice(0, end)\n}\n\n/**\n * Get an extname from a path.\n *\n * @param {string} path\n * File path.\n * @returns {string}\n * Extname.\n */\nfunction extname(path) {\n assertPath(path)\n\n let index = path.length\n\n let end = -1\n let startPart = 0\n let startDot = -1\n // Track the state of characters (if any) we see before our first dot and\n // after any path separator we find.\n let preDotState = 0\n /** @type {boolean | undefined} */\n let unmatchedSlash\n\n while (index--) {\n const code = path.codePointAt(index)\n\n if (code === 47 /* `/` */) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now.\n if (unmatchedSlash) {\n startPart = index + 1\n break\n }\n\n continue\n }\n\n if (end < 0) {\n // We saw the first non-path separator, mark this as the end of our\n // extension.\n unmatchedSlash = true\n end = index + 1\n }\n\n if (code === 46 /* `.` */) {\n // If this is our first dot, mark it as the start of our extension.\n if (startDot < 0) {\n startDot = index\n } else if (preDotState !== 1) {\n preDotState = 1\n }\n } else if (startDot > -1) {\n // We saw a non-dot and non-path separator before our dot, so we should\n // have a good chance at having a non-empty extension.\n preDotState = -1\n }\n }\n\n if (\n startDot < 0 ||\n end < 0 ||\n // We saw a non-dot character immediately before the dot.\n preDotState === 0 ||\n // The (right-most) trimmed path component is exactly `..`.\n (preDotState === 1 && startDot === end - 1 && startDot === startPart + 1)\n ) {\n return ''\n }\n\n return path.slice(startDot, end)\n}\n\n/**\n * Join segments from a path.\n *\n * @param {Array} segments\n * Path segments.\n * @returns {string}\n * File path.\n */\nfunction join(...segments) {\n let index = -1\n /** @type {string | undefined} */\n let joined\n\n while (++index < segments.length) {\n assertPath(segments[index])\n\n if (segments[index]) {\n joined =\n joined === undefined ? segments[index] : joined + '/' + segments[index]\n }\n }\n\n return joined === undefined ? '.' : normalize(joined)\n}\n\n/**\n * Normalize a basic file path.\n *\n * @param {string} path\n * File path.\n * @returns {string}\n * File path.\n */\n// Note: `normalize` is not exposed as `path.normalize`, so some code is\n// manually removed from it.\nfunction normalize(path) {\n assertPath(path)\n\n const absolute = path.codePointAt(0) === 47 /* `/` */\n\n // Normalize the path according to POSIX rules.\n let value = normalizeString(path, !absolute)\n\n if (value.length === 0 && !absolute) {\n value = '.'\n }\n\n if (value.length > 0 && path.codePointAt(path.length - 1) === 47 /* / */) {\n value += '/'\n }\n\n return absolute ? '/' + value : value\n}\n\n/**\n * Resolve `.` and `..` elements in a path with directory names.\n *\n * @param {string} path\n * File path.\n * @param {boolean} allowAboveRoot\n * Whether `..` can move above root.\n * @returns {string}\n * File path.\n */\nfunction normalizeString(path, allowAboveRoot) {\n let result = ''\n let lastSegmentLength = 0\n let lastSlash = -1\n let dots = 0\n let index = -1\n /** @type {number | undefined} */\n let code\n /** @type {number} */\n let lastSlashIndex\n\n while (++index <= path.length) {\n if (index < path.length) {\n code = path.codePointAt(index)\n } else if (code === 47 /* `/` */) {\n break\n } else {\n code = 47 /* `/` */\n }\n\n if (code === 47 /* `/` */) {\n if (lastSlash === index - 1 || dots === 1) {\n // Empty.\n } else if (lastSlash !== index - 1 && dots === 2) {\n if (\n result.length < 2 ||\n lastSegmentLength !== 2 ||\n result.codePointAt(result.length - 1) !== 46 /* `.` */ ||\n result.codePointAt(result.length - 2) !== 46 /* `.` */\n ) {\n if (result.length > 2) {\n lastSlashIndex = result.lastIndexOf('/')\n\n if (lastSlashIndex !== result.length - 1) {\n if (lastSlashIndex < 0) {\n result = ''\n lastSegmentLength = 0\n } else {\n result = result.slice(0, lastSlashIndex)\n lastSegmentLength = result.length - 1 - result.lastIndexOf('/')\n }\n\n lastSlash = index\n dots = 0\n continue\n }\n } else if (result.length > 0) {\n result = ''\n lastSegmentLength = 0\n lastSlash = index\n dots = 0\n continue\n }\n }\n\n if (allowAboveRoot) {\n result = result.length > 0 ? result + '/..' : '..'\n lastSegmentLength = 2\n }\n } else {\n if (result.length > 0) {\n result += '/' + path.slice(lastSlash + 1, index)\n } else {\n result = path.slice(lastSlash + 1, index)\n }\n\n lastSegmentLength = index - lastSlash - 1\n }\n\n lastSlash = index\n dots = 0\n } else if (code === 46 /* `.` */ && dots > -1) {\n dots++\n } else {\n dots = -1\n }\n }\n\n return result\n}\n\n/**\n * Make sure `path` is a string.\n *\n * @param {string} path\n * File path.\n * @returns {asserts path is string}\n * Nothing.\n */\nfunction assertPath(path) {\n if (typeof path !== 'string') {\n throw new TypeError(\n 'Path must be a string. Received ' + JSON.stringify(path)\n )\n }\n}\n\n/* eslint-enable max-depth, complexity */\n","// Somewhat based on:\n// .\n// But I don’t think one tiny line of code can be copyrighted. 😅\nexport const minproc = {cwd}\n\nfunction cwd() {\n return '/'\n}\n","/**\n * Checks if a value has the shape of a WHATWG URL object.\n *\n * Using a symbol or instanceof would not be able to recognize URL objects\n * coming from other implementations (e.g. in Electron), so instead we are\n * checking some well known properties for a lack of a better test.\n *\n * We use `href` and `protocol` as they are the only properties that are\n * easy to retrieve and calculate due to the lazy nature of the getters.\n *\n * We check for auth attribute to distinguish legacy url instance with\n * WHATWG URL instance.\n *\n * @param {unknown} fileUrlOrPath\n * File path or URL.\n * @returns {fileUrlOrPath is URL}\n * Whether it’s a URL.\n */\n// From: \nexport function isUrl(fileUrlOrPath) {\n return Boolean(\n fileUrlOrPath !== null &&\n typeof fileUrlOrPath === 'object' &&\n 'href' in fileUrlOrPath &&\n fileUrlOrPath.href &&\n 'protocol' in fileUrlOrPath &&\n fileUrlOrPath.protocol &&\n // @ts-expect-error: indexing is fine.\n fileUrlOrPath.auth === undefined\n )\n}\n","import {isUrl} from './minurl.shared.js'\n\nexport {isUrl} from './minurl.shared.js'\n\n// See: \n\n/**\n * @param {URL | string} path\n * File URL.\n * @returns {string}\n * File URL.\n */\nexport function urlToPath(path) {\n if (typeof path === 'string') {\n path = new URL(path)\n } else if (!isUrl(path)) {\n /** @type {NodeJS.ErrnoException} */\n const error = new TypeError(\n 'The \"path\" argument must be of type string or an instance of URL. Received `' +\n path +\n '`'\n )\n error.code = 'ERR_INVALID_ARG_TYPE'\n throw error\n }\n\n if (path.protocol !== 'file:') {\n /** @type {NodeJS.ErrnoException} */\n const error = new TypeError('The URL must be of scheme file')\n error.code = 'ERR_INVALID_URL_SCHEME'\n throw error\n }\n\n return getPathFromURLPosix(path)\n}\n\n/**\n * Get a path from a POSIX URL.\n *\n * @param {URL} url\n * URL.\n * @returns {string}\n * File path.\n */\nfunction getPathFromURLPosix(url) {\n if (url.hostname !== '') {\n /** @type {NodeJS.ErrnoException} */\n const error = new TypeError(\n 'File URL host must be \"localhost\" or empty on darwin'\n )\n error.code = 'ERR_INVALID_FILE_URL_HOST'\n throw error\n }\n\n const pathname = url.pathname\n let index = -1\n\n while (++index < pathname.length) {\n if (\n pathname.codePointAt(index) === 37 /* `%` */ &&\n pathname.codePointAt(index + 1) === 50 /* `2` */\n ) {\n const third = pathname.codePointAt(index + 2)\n if (third === 70 /* `F` */ || third === 102 /* `f` */) {\n /** @type {NodeJS.ErrnoException} */\n const error = new TypeError(\n 'File URL path must not include encoded / characters'\n )\n error.code = 'ERR_INVALID_FILE_URL_PATH'\n throw error\n }\n }\n }\n\n return decodeURIComponent(pathname)\n}\n","/**\n * @import {Node, Point, Position} from 'unist'\n * @import {Options as MessageOptions} from 'vfile-message'\n * @import {Compatible, Data, Map, Options, Value} from 'vfile'\n */\n\n/**\n * @typedef {object & {type: string, position?: Position | undefined}} NodeLike\n */\n\nimport {VFileMessage} from 'vfile-message'\nimport {minpath} from '#minpath'\nimport {minproc} from '#minproc'\nimport {urlToPath, isUrl} from '#minurl'\n\n/**\n * Order of setting (least specific to most), we need this because otherwise\n * `{stem: 'a', path: '~/b.js'}` would throw, as a path is needed before a\n * stem can be set.\n */\nconst order = /** @type {const} */ ([\n 'history',\n 'path',\n 'basename',\n 'stem',\n 'extname',\n 'dirname'\n])\n\nexport class VFile {\n /**\n * Create a new virtual file.\n *\n * `options` is treated as:\n *\n * * `string` or `Uint8Array` — `{value: options}`\n * * `URL` — `{path: options}`\n * * `VFile` — shallow copies its data over to the new file\n * * `object` — all fields are shallow copied over to the new file\n *\n * Path related fields are set in the following order (least specific to\n * most specific): `history`, `path`, `basename`, `stem`, `extname`,\n * `dirname`.\n *\n * You cannot set `dirname` or `extname` without setting either `history`,\n * `path`, `basename`, or `stem` too.\n *\n * @param {Compatible | null | undefined} [value]\n * File value.\n * @returns\n * New instance.\n */\n constructor(value) {\n /** @type {Options | VFile} */\n let options\n\n if (!value) {\n options = {}\n } else if (isUrl(value)) {\n options = {path: value}\n } else if (typeof value === 'string' || isUint8Array(value)) {\n options = {value}\n } else {\n options = value\n }\n\n /* eslint-disable no-unused-expressions */\n\n /**\n * Base of `path` (default: `process.cwd()` or `'/'` in browsers).\n *\n * @type {string}\n */\n // Prevent calling `cwd` (which could be expensive) if it’s not needed;\n // the empty string will be overridden in the next block.\n this.cwd = 'cwd' in options ? '' : minproc.cwd()\n\n /**\n * Place to store custom info (default: `{}`).\n *\n * It’s OK to store custom data directly on the file but moving it to\n * `data` is recommended.\n *\n * @type {Data}\n */\n this.data = {}\n\n /**\n * List of file paths the file moved between.\n *\n * The first is the original path and the last is the current path.\n *\n * @type {Array}\n */\n this.history = []\n\n /**\n * List of messages associated with the file.\n *\n * @type {Array}\n */\n this.messages = []\n\n /**\n * Raw value.\n *\n * @type {Value}\n */\n this.value\n\n // The below are non-standard, they are “well-known”.\n // As in, used in several tools.\n /**\n * Source map.\n *\n * This type is equivalent to the `RawSourceMap` type from the `source-map`\n * module.\n *\n * @type {Map | null | undefined}\n */\n this.map\n\n /**\n * Custom, non-string, compiled, representation.\n *\n * This is used by unified to store non-string results.\n * One example is when turning markdown into React nodes.\n *\n * @type {unknown}\n */\n this.result\n\n /**\n * Whether a file was saved to disk.\n *\n * This is used by vfile reporters.\n *\n * @type {boolean}\n */\n this.stored\n /* eslint-enable no-unused-expressions */\n\n // Set path related properties in the correct order.\n let index = -1\n\n while (++index < order.length) {\n const field = order[index]\n\n // Note: we specifically use `in` instead of `hasOwnProperty` to accept\n // `vfile`s too.\n if (\n field in options &&\n options[field] !== undefined &&\n options[field] !== null\n ) {\n // @ts-expect-error: TS doesn’t understand basic reality.\n this[field] = field === 'history' ? [...options[field]] : options[field]\n }\n }\n\n /** @type {string} */\n let field\n\n // Set non-path related properties.\n for (field in options) {\n // @ts-expect-error: fine to set other things.\n if (!order.includes(field)) {\n // @ts-expect-error: fine to set other things.\n this[field] = options[field]\n }\n }\n }\n\n /**\n * Get the basename (including extname) (example: `'index.min.js'`).\n *\n * @returns {string | undefined}\n * Basename.\n */\n get basename() {\n return typeof this.path === 'string'\n ? minpath.basename(this.path)\n : undefined\n }\n\n /**\n * Set basename (including extname) (`'index.min.js'`).\n *\n * Cannot contain path separators (`'/'` on unix, macOS, and browsers, `'\\'`\n * on windows).\n * Cannot be nullified (use `file.path = file.dirname` instead).\n *\n * @param {string} basename\n * Basename.\n * @returns {undefined}\n * Nothing.\n */\n set basename(basename) {\n assertNonEmpty(basename, 'basename')\n assertPart(basename, 'basename')\n this.path = minpath.join(this.dirname || '', basename)\n }\n\n /**\n * Get the parent path (example: `'~'`).\n *\n * @returns {string | undefined}\n * Dirname.\n */\n get dirname() {\n return typeof this.path === 'string'\n ? minpath.dirname(this.path)\n : undefined\n }\n\n /**\n * Set the parent path (example: `'~'`).\n *\n * Cannot be set if there’s no `path` yet.\n *\n * @param {string | undefined} dirname\n * Dirname.\n * @returns {undefined}\n * Nothing.\n */\n set dirname(dirname) {\n assertPath(this.basename, 'dirname')\n this.path = minpath.join(dirname || '', this.basename)\n }\n\n /**\n * Get the extname (including dot) (example: `'.js'`).\n *\n * @returns {string | undefined}\n * Extname.\n */\n get extname() {\n return typeof this.path === 'string'\n ? minpath.extname(this.path)\n : undefined\n }\n\n /**\n * Set the extname (including dot) (example: `'.js'`).\n *\n * Cannot contain path separators (`'/'` on unix, macOS, and browsers, `'\\'`\n * on windows).\n * Cannot be set if there’s no `path` yet.\n *\n * @param {string | undefined} extname\n * Extname.\n * @returns {undefined}\n * Nothing.\n */\n set extname(extname) {\n assertPart(extname, 'extname')\n assertPath(this.dirname, 'extname')\n\n if (extname) {\n if (extname.codePointAt(0) !== 46 /* `.` */) {\n throw new Error('`extname` must start with `.`')\n }\n\n if (extname.includes('.', 1)) {\n throw new Error('`extname` cannot contain multiple dots')\n }\n }\n\n this.path = minpath.join(this.dirname, this.stem + (extname || ''))\n }\n\n /**\n * Get the full path (example: `'~/index.min.js'`).\n *\n * @returns {string}\n * Path.\n */\n get path() {\n return this.history[this.history.length - 1]\n }\n\n /**\n * Set the full path (example: `'~/index.min.js'`).\n *\n * Cannot be nullified.\n * You can set a file URL (a `URL` object with a `file:` protocol) which will\n * be turned into a path with `url.fileURLToPath`.\n *\n * @param {URL | string} path\n * Path.\n * @returns {undefined}\n * Nothing.\n */\n set path(path) {\n if (isUrl(path)) {\n path = urlToPath(path)\n }\n\n assertNonEmpty(path, 'path')\n\n if (this.path !== path) {\n this.history.push(path)\n }\n }\n\n /**\n * Get the stem (basename w/o extname) (example: `'index.min'`).\n *\n * @returns {string | undefined}\n * Stem.\n */\n get stem() {\n return typeof this.path === 'string'\n ? minpath.basename(this.path, this.extname)\n : undefined\n }\n\n /**\n * Set the stem (basename w/o extname) (example: `'index.min'`).\n *\n * Cannot contain path separators (`'/'` on unix, macOS, and browsers, `'\\'`\n * on windows).\n * Cannot be nullified (use `file.path = file.dirname` instead).\n *\n * @param {string} stem\n * Stem.\n * @returns {undefined}\n * Nothing.\n */\n set stem(stem) {\n assertNonEmpty(stem, 'stem')\n assertPart(stem, 'stem')\n this.path = minpath.join(this.dirname || '', stem + (this.extname || ''))\n }\n\n // Normal prototypal methods.\n /**\n * Create a fatal message for `reason` associated with the file.\n *\n * The `fatal` field of the message is set to `true` (error; file not usable)\n * and the `file` field is set to the current file path.\n * The message is added to the `messages` field on `file`.\n *\n * > 🪦 **Note**: also has obsolete signatures.\n *\n * @overload\n * @param {string} reason\n * @param {MessageOptions | null | undefined} [options]\n * @returns {never}\n *\n * @overload\n * @param {string} reason\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns {never}\n *\n * @overload\n * @param {string} reason\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns {never}\n *\n * @overload\n * @param {string} reason\n * @param {string | null | undefined} [origin]\n * @returns {never}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns {never}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns {never}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {string | null | undefined} [origin]\n * @returns {never}\n *\n * @param {Error | VFileMessage | string} causeOrReason\n * Reason for message, should use markdown.\n * @param {Node | NodeLike | MessageOptions | Point | Position | string | null | undefined} [optionsOrParentOrPlace]\n * Configuration (optional).\n * @param {string | null | undefined} [origin]\n * Place in code where the message originates (example:\n * `'my-package:my-rule'` or `'my-rule'`).\n * @returns {never}\n * Never.\n * @throws {VFileMessage}\n * Message.\n */\n fail(causeOrReason, optionsOrParentOrPlace, origin) {\n // @ts-expect-error: the overloads are fine.\n const message = this.message(causeOrReason, optionsOrParentOrPlace, origin)\n\n message.fatal = true\n\n throw message\n }\n\n /**\n * Create an info message for `reason` associated with the file.\n *\n * The `fatal` field of the message is set to `undefined` (info; change\n * likely not needed) and the `file` field is set to the current file path.\n * The message is added to the `messages` field on `file`.\n *\n * > 🪦 **Note**: also has obsolete signatures.\n *\n * @overload\n * @param {string} reason\n * @param {MessageOptions | null | undefined} [options]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {string} reason\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {string} reason\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {string} reason\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @param {Error | VFileMessage | string} causeOrReason\n * Reason for message, should use markdown.\n * @param {Node | NodeLike | MessageOptions | Point | Position | string | null | undefined} [optionsOrParentOrPlace]\n * Configuration (optional).\n * @param {string | null | undefined} [origin]\n * Place in code where the message originates (example:\n * `'my-package:my-rule'` or `'my-rule'`).\n * @returns {VFileMessage}\n * Message.\n */\n info(causeOrReason, optionsOrParentOrPlace, origin) {\n // @ts-expect-error: the overloads are fine.\n const message = this.message(causeOrReason, optionsOrParentOrPlace, origin)\n\n message.fatal = undefined\n\n return message\n }\n\n /**\n * Create a message for `reason` associated with the file.\n *\n * The `fatal` field of the message is set to `false` (warning; change may be\n * needed) and the `file` field is set to the current file path.\n * The message is added to the `messages` field on `file`.\n *\n * > 🪦 **Note**: also has obsolete signatures.\n *\n * @overload\n * @param {string} reason\n * @param {MessageOptions | null | undefined} [options]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {string} reason\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {string} reason\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {string} reason\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @param {Error | VFileMessage | string} causeOrReason\n * Reason for message, should use markdown.\n * @param {Node | NodeLike | MessageOptions | Point | Position | string | null | undefined} [optionsOrParentOrPlace]\n * Configuration (optional).\n * @param {string | null | undefined} [origin]\n * Place in code where the message originates (example:\n * `'my-package:my-rule'` or `'my-rule'`).\n * @returns {VFileMessage}\n * Message.\n */\n message(causeOrReason, optionsOrParentOrPlace, origin) {\n const message = new VFileMessage(\n // @ts-expect-error: the overloads are fine.\n causeOrReason,\n optionsOrParentOrPlace,\n origin\n )\n\n if (this.path) {\n message.name = this.path + ':' + message.name\n message.file = this.path\n }\n\n message.fatal = false\n\n this.messages.push(message)\n\n return message\n }\n\n /**\n * Serialize the file.\n *\n * > **Note**: which encodings are supported depends on the engine.\n * > For info on Node.js, see:\n * > .\n *\n * @param {string | null | undefined} [encoding='utf8']\n * Character encoding to understand `value` as when it’s a `Uint8Array`\n * (default: `'utf-8'`).\n * @returns {string}\n * Serialized file.\n */\n toString(encoding) {\n if (this.value === undefined) {\n return ''\n }\n\n if (typeof this.value === 'string') {\n return this.value\n }\n\n const decoder = new TextDecoder(encoding || undefined)\n return decoder.decode(this.value)\n }\n}\n\n/**\n * Assert that `part` is not a path (as in, does not contain `path.sep`).\n *\n * @param {string | null | undefined} part\n * File path part.\n * @param {string} name\n * Part name.\n * @returns {undefined}\n * Nothing.\n */\nfunction assertPart(part, name) {\n if (part && part.includes(minpath.sep)) {\n throw new Error(\n '`' + name + '` cannot be a path: did not expect `' + minpath.sep + '`'\n )\n }\n}\n\n/**\n * Assert that `part` is not empty.\n *\n * @param {string | undefined} part\n * Thing.\n * @param {string} name\n * Part name.\n * @returns {asserts part is string}\n * Nothing.\n */\nfunction assertNonEmpty(part, name) {\n if (!part) {\n throw new Error('`' + name + '` cannot be empty')\n }\n}\n\n/**\n * Assert `path` exists.\n *\n * @param {string | undefined} path\n * Path.\n * @param {string} name\n * Dependency name.\n * @returns {asserts path is string}\n * Nothing.\n */\nfunction assertPath(path, name) {\n if (!path) {\n throw new Error('Setting `' + name + '` requires `path` to be set too')\n }\n}\n\n/**\n * Assert `value` is an `Uint8Array`.\n *\n * @param {unknown} value\n * thing.\n * @returns {value is Uint8Array}\n * Whether `value` is an `Uint8Array`.\n */\nfunction isUint8Array(value) {\n return Boolean(\n value &&\n typeof value === 'object' &&\n 'byteLength' in value &&\n 'byteOffset' in value\n )\n}\n","export const CallableInstance =\n /**\n * @type {new , Result>(property: string | symbol) => (...parameters: Parameters) => Result}\n */\n (\n /** @type {unknown} */\n (\n /**\n * @this {Function}\n * @param {string | symbol} property\n * @returns {(...parameters: Array) => unknown}\n */\n function (property) {\n const self = this\n const constr = self.constructor\n const proto = /** @type {Record} */ (\n // Prototypes do exist.\n // type-coverage:ignore-next-line\n constr.prototype\n )\n const value = proto[property]\n /** @type {(...parameters: Array) => unknown} */\n const apply = function () {\n return value.apply(apply, arguments)\n }\n\n Object.setPrototypeOf(apply, proto)\n\n // Not needed for us in `unified`: we only call this on the `copy`\n // function,\n // and we don't need to add its fields (`length`, `name`)\n // over.\n // See also: GH-246.\n // const names = Object.getOwnPropertyNames(value)\n //\n // for (const p of names) {\n // const descriptor = Object.getOwnPropertyDescriptor(value, p)\n // if (descriptor) Object.defineProperty(apply, p, descriptor)\n // }\n\n return apply\n }\n )\n )\n","/**\n * @typedef {import('trough').Pipeline} Pipeline\n *\n * @typedef {import('unist').Node} Node\n *\n * @typedef {import('vfile').Compatible} Compatible\n * @typedef {import('vfile').Value} Value\n *\n * @typedef {import('../index.js').CompileResultMap} CompileResultMap\n * @typedef {import('../index.js').Data} Data\n * @typedef {import('../index.js').Settings} Settings\n */\n\n/**\n * @typedef {CompileResultMap[keyof CompileResultMap]} CompileResults\n * Acceptable results from compilers.\n *\n * To register custom results, add them to\n * {@linkcode CompileResultMap}.\n */\n\n/**\n * @template {Node} [Tree=Node]\n * The node that the compiler receives (default: `Node`).\n * @template {CompileResults} [Result=CompileResults]\n * The thing that the compiler yields (default: `CompileResults`).\n * @callback Compiler\n * A **compiler** handles the compiling of a syntax tree to something else\n * (in most cases, text) (TypeScript type).\n *\n * It is used in the stringify phase and called with a {@linkcode Node}\n * and {@linkcode VFile} representation of the document to compile.\n * It should return the textual representation of the given tree (typically\n * `string`).\n *\n * > **Note**: unified typically compiles by serializing: most compilers\n * > return `string` (or `Uint8Array`).\n * > Some compilers, such as the one configured with\n * > [`rehype-react`][rehype-react], return other values (in this case, a\n * > React tree).\n * > If you’re using a compiler that doesn’t serialize, expect different\n * > result values.\n * >\n * > To register custom results in TypeScript, add them to\n * > {@linkcode CompileResultMap}.\n *\n * [rehype-react]: https://github.com/rehypejs/rehype-react\n * @param {Tree} tree\n * Tree to compile.\n * @param {VFile} file\n * File associated with `tree`.\n * @returns {Result}\n * New content: compiled text (`string` or `Uint8Array`, for `file.value`) or\n * something else (for `file.result`).\n */\n\n/**\n * @template {Node} [Tree=Node]\n * The node that the parser yields (default: `Node`)\n * @callback Parser\n * A **parser** handles the parsing of text to a syntax tree.\n *\n * It is used in the parse phase and is called with a `string` and\n * {@linkcode VFile} of the document to parse.\n * It must return the syntax tree representation of the given file\n * ({@linkcode Node}).\n * @param {string} document\n * Document to parse.\n * @param {VFile} file\n * File associated with `document`.\n * @returns {Tree}\n * Node representing the given file.\n */\n\n/**\n * @typedef {(\n * Plugin, any, any> |\n * PluginTuple, any, any> |\n * Preset\n * )} Pluggable\n * Union of the different ways to add plugins and settings.\n */\n\n/**\n * @typedef {Array} PluggableList\n * List of plugins and presets.\n */\n\n// Note: we can’t use `callback` yet as it messes up `this`:\n// .\n/**\n * @template {Array} [PluginParameters=[]]\n * Arguments passed to the plugin (default: `[]`, the empty tuple).\n * @template {Node | string | undefined} [Input=Node]\n * Value that is expected as input (default: `Node`).\n *\n * * If the plugin returns a {@linkcode Transformer}, this\n * should be the node it expects.\n * * If the plugin sets a {@linkcode Parser}, this should be\n * `string`.\n * * If the plugin sets a {@linkcode Compiler}, this should be the\n * node it expects.\n * @template [Output=Input]\n * Value that is yielded as output (default: `Input`).\n *\n * * If the plugin returns a {@linkcode Transformer}, this\n * should be the node that that yields.\n * * If the plugin sets a {@linkcode Parser}, this should be the\n * node that it yields.\n * * If the plugin sets a {@linkcode Compiler}, this should be\n * result it yields.\n * @typedef {(\n * (this: Processor, ...parameters: PluginParameters) =>\n * Input extends string ? // Parser.\n * Output extends Node | undefined ? undefined | void : never :\n * Output extends CompileResults ? // Compiler.\n * Input extends Node | undefined ? undefined | void : never :\n * Transformer<\n * Input extends Node ? Input : Node,\n * Output extends Node ? Output : Node\n * > | undefined | void\n * )} Plugin\n * Single plugin.\n *\n * Plugins configure the processors they are applied on in the following\n * ways:\n *\n * * they change the processor, such as the parser, the compiler, or by\n * configuring data\n * * they specify how to handle trees and files\n *\n * In practice, they are functions that can receive options and configure the\n * processor (`this`).\n *\n * > **Note**: plugins are called when the processor is *frozen*, not when\n * > they are applied.\n */\n\n/**\n * Tuple of a plugin and its configuration.\n *\n * The first item is a plugin, the rest are its parameters.\n *\n * @template {Array} [TupleParameters=[]]\n * Arguments passed to the plugin (default: `[]`, the empty tuple).\n * @template {Node | string | undefined} [Input=undefined]\n * Value that is expected as input (optional).\n *\n * * If the plugin returns a {@linkcode Transformer}, this\n * should be the node it expects.\n * * If the plugin sets a {@linkcode Parser}, this should be\n * `string`.\n * * If the plugin sets a {@linkcode Compiler}, this should be the\n * node it expects.\n * @template [Output=undefined] (optional).\n * Value that is yielded as output.\n *\n * * If the plugin returns a {@linkcode Transformer}, this\n * should be the node that that yields.\n * * If the plugin sets a {@linkcode Parser}, this should be the\n * node that it yields.\n * * If the plugin sets a {@linkcode Compiler}, this should be\n * result it yields.\n * @typedef {(\n * [\n * plugin: Plugin,\n * ...parameters: TupleParameters\n * ]\n * )} PluginTuple\n */\n\n/**\n * @typedef Preset\n * Sharable configuration.\n *\n * They can contain plugins and settings.\n * @property {PluggableList | undefined} [plugins]\n * List of plugins and presets (optional).\n * @property {Settings | undefined} [settings]\n * Shared settings for parsers and compilers (optional).\n */\n\n/**\n * @template {VFile} [File=VFile]\n * The file that the callback receives (default: `VFile`).\n * @callback ProcessCallback\n * Callback called when the process is done.\n *\n * Called with either an error or a result.\n * @param {Error | undefined} [error]\n * Fatal error (optional).\n * @param {File | undefined} [file]\n * Processed file (optional).\n * @returns {undefined}\n * Nothing.\n */\n\n/**\n * @template {Node} [Tree=Node]\n * The tree that the callback receives (default: `Node`).\n * @callback RunCallback\n * Callback called when transformers are done.\n *\n * Called with either an error or results.\n * @param {Error | undefined} [error]\n * Fatal error (optional).\n * @param {Tree | undefined} [tree]\n * Transformed tree (optional).\n * @param {VFile | undefined} [file]\n * File (optional).\n * @returns {undefined}\n * Nothing.\n */\n\n/**\n * @template {Node} [Output=Node]\n * Node type that the transformer yields (default: `Node`).\n * @callback TransformCallback\n * Callback passed to transforms.\n *\n * If the signature of a `transformer` accepts a third argument, the\n * transformer may perform asynchronous operations, and must call it.\n * @param {Error | undefined} [error]\n * Fatal error to stop the process (optional).\n * @param {Output | undefined} [tree]\n * New, changed, tree (optional).\n * @param {VFile | undefined} [file]\n * New, changed, file (optional).\n * @returns {undefined}\n * Nothing.\n */\n\n/**\n * @template {Node} [Input=Node]\n * Node type that the transformer expects (default: `Node`).\n * @template {Node} [Output=Input]\n * Node type that the transformer yields (default: `Input`).\n * @callback Transformer\n * Transformers handle syntax trees and files.\n *\n * They are functions that are called each time a syntax tree and file are\n * passed through the run phase.\n * When an error occurs in them (either because it’s thrown, returned,\n * rejected, or passed to `next`), the process stops.\n *\n * The run phase is handled by [`trough`][trough], see its documentation for\n * the exact semantics of these functions.\n *\n * > **Note**: you should likely ignore `next`: don’t accept it.\n * > it supports callback-style async work.\n * > But promises are likely easier to reason about.\n *\n * [trough]: https://github.com/wooorm/trough#function-fninput-next\n * @param {Input} tree\n * Tree to handle.\n * @param {VFile} file\n * File to handle.\n * @param {TransformCallback