upgrade cdav calendar to version 4

1 files changed, 3617 insertions, 0 deletions

diff --git a/library/fullcalendar/vendor/rrule.js b/library/fullcalendar/vendor/rrule.js
new file mode 100644
index 000000000..08fdb7d70
--- /dev/null
+++ b/library/fullcalendar/vendor/rrule.js
@@ -0,0 +1,3617 @@
+(function webpackUniversalModuleDefinition(root, factory) {
+	if(typeof exports === 'object' && typeof module === 'object')
+		module.exports = factory(require("luxon"));
+	else if(typeof define === 'function' && define.amd)
+		define(["luxon"], factory);
+	else if(typeof exports === 'object')
+		exports["rrule"] = factory(require("luxon"));
+	else
+		root["rrule"] = factory(root["luxon"]);
+})(typeof self !== 'undefined' ? self : this, function(__WEBPACK_EXTERNAL_MODULE__2__) {
+return /******/ (function(modules) { // webpackBootstrap
+/******/ 	// The module cache
+/******/ 	var installedModules = {};
+/******/
+/******/ 	// The require function
+/******/ 	function __webpack_require__(moduleId) {
+/******/
+/******/ 		// Check if module is in cache
+/******/ 		if(installedModules[moduleId]) {
+/******/ 			return installedModules[moduleId].exports;
+/******/ 		}
+/******/ 		// Create a new module (and put it into the cache)
+/******/ 		var module = installedModules[moduleId] = {
+/******/ 			i: moduleId,
+/******/ 			l: false,
+/******/ 			exports: {}
+/******/ 		};
+/******/
+/******/ 		// Execute the module function
+/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
+/******/
+/******/ 		// Flag the module as loaded
+/******/ 		module.l = true;
+/******/
+/******/ 		// Return the exports of the module
+/******/ 		return module.exports;
+/******/ 	}
+/******/
+/******/
+/******/ 	// expose the modules object (__webpack_modules__)
+/******/ 	__webpack_require__.m = modules;
+/******/
+/******/ 	// expose the module cache
+/******/ 	__webpack_require__.c = installedModules;
+/******/
+/******/ 	// define getter function for harmony exports
+/******/ 	__webpack_require__.d = function(exports, name, getter) {
+/******/ 		if(!__webpack_require__.o(exports, name)) {
+/******/ 			Object.defineProperty(exports, name, { enumerable: true, get: getter });
+/******/ 		}
+/******/ 	};
+/******/
+/******/ 	// define __esModule on exports
+/******/ 	__webpack_require__.r = function(exports) {
+/******/ 		if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
+/******/ 			Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
+/******/ 		}
+/******/ 		Object.defineProperty(exports, '__esModule', { value: true });
+/******/ 	};
+/******/
+/******/ 	// create a fake namespace object
+/******/ 	// mode & 1: value is a module id, require it
+/******/ 	// mode & 2: merge all properties of value into the ns
+/******/ 	// mode & 4: return value when already ns object
+/******/ 	// mode & 8|1: behave like require
+/******/ 	__webpack_require__.t = function(value, mode) {
+/******/ 		if(mode & 1) value = __webpack_require__(value);
+/******/ 		if(mode & 8) return value;
+/******/ 		if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
+/******/ 		var ns = Object.create(null);
+/******/ 		__webpack_require__.r(ns);
+/******/ 		Object.defineProperty(ns, 'default', { enumerable: true, value: value });
+/******/ 		if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
+/******/ 		return ns;
+/******/ 	};
+/******/
+/******/ 	// getDefaultExport function for compatibility with non-harmony modules
+/******/ 	__webpack_require__.n = function(module) {
+/******/ 		var getter = module && module.__esModule ?
+/******/ 			function getDefault() { return module['default']; } :
+/******/ 			function getModuleExports() { return module; };
+/******/ 		__webpack_require__.d(getter, 'a', getter);
+/******/ 		return getter;
+/******/ 	};
+/******/
+/******/ 	// Object.prototype.hasOwnProperty.call
+/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
+/******/
+/******/ 	// __webpack_public_path__
+/******/ 	__webpack_require__.p = "";
+/******/
+/******/
+/******/ 	// Load entry module and return exports
+/******/ 	return __webpack_require__(__webpack_require__.s = 1);
+/******/ })
+/************************************************************************/
+/******/ ([
+/* 0 */
+/***/ (function(module, __webpack_exports__, __webpack_require__) {
+
+"use strict";
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "f", function() { return isPresent; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "e", function() { return isNumber; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "d", function() { return isArray; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "j", function() { return range; });
+/* unused harmony export clone */
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "k", function() { return repeat; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "m", function() { return toArray; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "h", function() { return padStart; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "l", function() { return split; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "i", function() { return pymod; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return divmod; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "b", function() { return empty; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "g", function() { return notEmpty; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "c", function() { return includes; });
+// =============================================================================
+// Helper functions
+// =============================================================================
+var isPresent = function (value) {
+    return value !== null && value !== undefined;
+};
+var isNumber = function (value) {
+    return typeof value === 'number';
+};
+var isArray = Array.isArray;
+/**
+ * Simplified version of python's range()
+ */
+var range = function (start, end) {
+    if (end === void 0) { end = start; }
+    if (arguments.length === 1) {
+        end = start;
+        start = 0;
+    }
+    var rang = [];
+    for (var i = start; i < end; i++)
+        rang.push(i);
+    return rang;
+};
+var clone = function (array) {
+    return [].concat(array);
+};
+var repeat = function (value, times) {
+    var i = 0;
+    var array = [];
+    if (isArray(value)) {
+        for (; i < times; i++)
+            array[i] = [].concat(value);
+    }
+    else {
+        for (; i < times; i++)
+            array[i] = value;
+    }
+    return array;
+};
+var toArray = function (item) {
+    if (isArray(item)) {
+        return item;
+    }
+    return [item];
+};
+function padStart(item, targetLength, padString) {
+    if (padString === void 0) { padString = ' '; }
+    var str = String(item);
+    targetLength = targetLength >> 0;
+    if (str.length > targetLength) {
+        return String(str);
+    }
+    targetLength = targetLength - str.length;
+    if (targetLength > padString.length) {
+        padString += repeat(padString, targetLength / padString.length);
+    }
+    return padString.slice(0, targetLength) + String(str);
+}
+/**
+ * Python like split
+ */
+var split = function (str, sep, num) {
+    var splits = str.split(sep);
+    return num
+        ? splits.slice(0, num).concat([splits.slice(num).join(sep)])
+        : splits;
+};
+/**
+ * closure/goog/math/math.js:modulo
+ * Copyright 2006 The Closure Library Authors.
+ * The % operator in JavaScript returns the remainder of a / b, but differs from
+ * some other languages in that the result will have the same sign as the
+ * dividend. For example, -1 % 8 == -1, whereas in some other languages
+ * (such as Python) the result would be 7. This function emulates the more
+ * correct modulo behavior, which is useful for certain applications such as
+ * calculating an offset index in a circular list.
+ *
+ * @param {number} a The dividend.
+ * @param {number} b The divisor.
+ * @return {number} a % b where the result is between 0 and b (either 0 <= x < b
+ *     or b < x <= 0, depending on the sign of b).
+ */
+var pymod = function (a, b) {
+    var r = a % b;
+    // If r and b differ in sign, add b to wrap the result to the correct sign.
+    return r * b < 0 ? r + b : r;
+};
+/**
+ * @see: <http://docs.python.org/library/functions.html#divmod>
+ */
+var divmod = function (a, b) {
+    return { div: Math.floor(a / b), mod: pymod(a, b) };
+};
+var empty = function (obj) {
+    return !isPresent(obj) || obj.length === 0;
+};
+/**
+ * Python-like boolean
+ * @return {Boolean} value of an object/primitive, taking into account
+ * the fact that in Python an empty list's/tuple's
+ * boolean value is False, whereas in JS it's true
+ */
+var notEmpty = function (obj) {
+    return !empty(obj);
+};
+/**
+ * Return true if a value is in an array
+ */
+var includes = function (arr, val) {
+    return notEmpty(arr) && arr.indexOf(val) !== -1;
+};
+
+
+/***/ }),
+/* 1 */
+/***/ (function(module, __webpack_exports__, __webpack_require__) {
+
+"use strict";
+__webpack_require__.r(__webpack_exports__);
+
+// EXTERNAL MODULE: ./src/helpers.ts
+var helpers = __webpack_require__(0);
+
+// CONCATENATED MODULE: ./src/dateutil.ts
+
+/**
+ * General date-related utilities.
+ * Also handles several incompatibilities between JavaScript and Python
+ *
+ */
+var dateutil_dateutil;
+(function (dateutil) {
+    dateutil.MONTH_DAYS = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
+    /**
+     * Number of milliseconds of one day
+     */
+    dateutil.ONE_DAY = 1000 * 60 * 60 * 24;
+    /**
+     * @see: <http://docs.python.org/library/datetime.html#datetime.MAXYEAR>
+     */
+    dateutil.MAXYEAR = 9999;
+    /**
+     * Python uses 1-Jan-1 as the base for calculating ordinals but we don't
+     * want to confuse the JS engine with milliseconds > Number.MAX_NUMBER,
+     * therefore we use 1-Jan-1970 instead
+     */
+    dateutil.ORDINAL_BASE = new Date(Date.UTC(1970, 0, 1));
+    /**
+     * Python: MO-SU: 0 - 6
+     * JS: SU-SAT 0 - 6
+     */
+    dateutil.PY_WEEKDAYS = [6, 0, 1, 2, 3, 4, 5];
+    /**
+     * py_date.timetuple()[7]
+     */
+    dateutil.getYearDay = function (date) {
+        var dateNoTime = new Date(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate());
+        return (Math.ceil((dateNoTime.valueOf() -
+            new Date(date.getUTCFullYear(), 0, 1).valueOf()) /
+            dateutil.ONE_DAY) + 1);
+    };
+    dateutil.isLeapYear = function (year) {
+        return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
+    };
+    dateutil.isDate = function (value) {
+        return value instanceof Date;
+    };
+    dateutil.isValidDate = function (value) {
+        return dateutil.isDate(value) && !isNaN(value.getTime());
+    };
+    /**
+     * @return {Number} the date's timezone offset in ms
+     */
+    dateutil.tzOffset = function (date) {
+        return date.getTimezoneOffset() * 60 * 1000;
+    };
+    /**
+     * @see: <http://www.mcfedries.com/JavaScript/DaysBetween.asp>
+     */
+    dateutil.daysBetween = function (date1, date2) {
+        // The number of milliseconds in one day
+        // Convert both dates to milliseconds
+        var date1ms = date1.getTime() - dateutil.tzOffset(date1);
+        var date2ms = date2.getTime() - dateutil.tzOffset(date2);
+        // Calculate the difference in milliseconds
+        var differencems = date1ms - date2ms;
+        // Convert back to days and return
+        return Math.round(differencems / dateutil.ONE_DAY);
+    };
+    /**
+     * @see: <http://docs.python.org/library/datetime.html#datetime.date.toordinal>
+     */
+    dateutil.toOrdinal = function (date) {
+        return dateutil.daysBetween(date, dateutil.ORDINAL_BASE);
+    };
+    /**
+     * @see - <http://docs.python.org/library/datetime.html#datetime.date.fromordinal>
+     */
+    dateutil.fromOrdinal = function (ordinal) {
+        return new Date(dateutil.ORDINAL_BASE.getTime() + ordinal * dateutil.ONE_DAY);
+    };
+    dateutil.getMonthDays = function (date) {
+        var month = date.getUTCMonth();
+        return month === 1 && dateutil.isLeapYear(date.getUTCFullYear())
+            ? 29
+            : dateutil.MONTH_DAYS[month];
+    };
+    /**
+     * @return {Number} python-like weekday
+     */
+    dateutil.getWeekday = function (date) {
+        return dateutil.PY_WEEKDAYS[date.getUTCDay()];
+    };
+    /**
+     * @see: <http://docs.python.org/library/calendar.html#calendar.monthrange>
+     */
+    dateutil.monthRange = function (year, month) {
+        var date = new Date(Date.UTC(year, month, 1));
+        return [dateutil.getWeekday(date), dateutil.getMonthDays(date)];
+    };
+    /**
+     * @see: <http://docs.python.org/library/datetime.html#datetime.datetime.combine>
+     */
+    dateutil.combine = function (date, time) {
+        time = time || date;
+        return new Date(Date.UTC(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate(), time.getHours(), time.getMinutes(), time.getSeconds(), time.getMilliseconds()));
+    };
+    dateutil.clone = function (date) {
+        var dolly = new Date(date.getTime());
+        return dolly;
+    };
+    dateutil.cloneDates = function (dates) {
+        var clones = [];
+        for (var i = 0; i < dates.length; i++) {
+            clones.push(dateutil.clone(dates[i]));
+        }
+        return clones;
+    };
+    /**
+     * Sorts an array of Date or dateutil.Time objects
+     */
+    dateutil.sort = function (dates) {
+        dates.sort(function (a, b) {
+            return a.getTime() - b.getTime();
+        });
+    };
+    dateutil.timeToUntilString = function (time, utc) {
+        if (utc === void 0) { utc = true; }
+        var date = new Date(time);
+        return [
+            Object(helpers["h" /* padStart */])(date.getUTCFullYear().toString(), 4, '0'),
+            Object(helpers["h" /* padStart */])(date.getUTCMonth() + 1, 2, '0'),
+            Object(helpers["h" /* padStart */])(date.getUTCDate(), 2, '0'),
+            'T',
+            Object(helpers["h" /* padStart */])(date.getUTCHours(), 2, '0'),
+            Object(helpers["h" /* padStart */])(date.getUTCMinutes(), 2, '0'),
+            Object(helpers["h" /* padStart */])(date.getUTCSeconds(), 2, '0'),
+            utc ? 'Z' : ''
+        ].join('');
+    };
+    dateutil.untilStringToDate = function (until) {
+        var re = /^(\d{4})(\d{2})(\d{2})(T(\d{2})(\d{2})(\d{2})Z?)?$/;
+        var bits = re.exec(until);
+        if (!bits)
+            throw new Error("Invalid UNTIL value: " + until);
+        return new Date(Date.UTC(parseInt(bits[1], 10), parseInt(bits[2], 10) - 1, parseInt(bits[3], 10), parseInt(bits[5], 10) || 0, parseInt(bits[6], 10) || 0, parseInt(bits[7], 10) || 0));
+    };
+})(dateutil_dateutil || (dateutil_dateutil = {}));
+/* harmony default export */ var src_dateutil = (dateutil_dateutil);
+
+// CONCATENATED MODULE: ./src/iterresult.ts
+/**
+ * This class helps us to emulate python's generators, sorta.
+ */
+var IterResult = /** @class */ (function () {
+    function IterResult(method, args) {
+        this.minDate = null;
+        this.maxDate = null;
+        this._result = [];
+        this.total = 0;
+        this.method = method;
+        this.args = args;
+        if (method === 'between') {
+            this.maxDate = args.inc
+                ? args.before
+                : new Date(args.before.getTime() - 1);
+            this.minDate = args.inc ? args.after : new Date(args.after.getTime() + 1);
+        }
+        else if (method === 'before') {
+            this.maxDate = args.inc ? args.dt : new Date(args.dt.getTime() - 1);
+        }
+        else if (method === 'after') {
+            this.minDate = args.inc ? args.dt : new Date(args.dt.getTime() + 1);
+        }
+    }
+    /**
+     * Possibly adds a date into the result.
+     *
+     * @param {Date} date - the date isn't necessarly added to the result
+     *                      list (if it is too late/too early)
+     * @return {Boolean} true if it makes sense to continue the iteration
+     *                   false if we're done.
+     */
+    IterResult.prototype.accept = function (date) {
+        ++this.total;
+        var tooEarly = this.minDate && date < this.minDate;
+        var tooLate = this.maxDate && date > this.maxDate;
+        if (this.method === 'between') {
+            if (tooEarly)
+                return true;
+            if (tooLate)
+                return false;
+        }
+        else if (this.method === 'before') {
+            if (tooLate)
+                return false;
+        }
+        else if (this.method === 'after') {
+            if (tooEarly)
+                return true;
+            this.add(date);
+            return false;
+        }
+        return this.add(date);
+    };
+    /**
+     *
+     * @param {Date} date that is part of the result.
+     * @return {Boolean} whether we are interested in more values.
+     */
+    IterResult.prototype.add = function (date) {
+        this._result.push(date);
+        return true;
+    };
+    /**
+     * 'before' and 'after' return only one date, whereas 'all'
+     * and 'between' an array.
+     * @return {Date,Array?}
+     */
+    IterResult.prototype.getValue = function () {
+        var res = this._result;
+        switch (this.method) {
+            case 'all':
+            case 'between':
+                return res;
+            case 'before':
+            case 'after':
+            default:
+                return (res.length ? res[res.length - 1] : null);
+        }
+    };
+    IterResult.prototype.clone = function () {
+        return new IterResult(this.method, this.args);
+    };
+    return IterResult;
+}());
+/* harmony default export */ var iterresult = (IterResult);
+
+// CONCATENATED MODULE: ./src/callbackiterresult.ts
+var __extends = (undefined && undefined.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    }
+    return function (d, b) {
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+
+/**
+ * IterResult subclass that calls a callback function on each add,
+ * and stops iterating when the callback returns false.
+ */
+var CallbackIterResult = /** @class */ (function (_super) {
+    __extends(CallbackIterResult, _super);
+    function CallbackIterResult(method, args, iterator) {
+        var _this = _super.call(this, method, args) || this;
+        _this.iterator = iterator;
+        return _this;
+    }
+    CallbackIterResult.prototype.add = function (date) {
+        if (this.iterator(date, this._result.length)) {
+            this._result.push(date);
+            return true;
+        }
+        return false;
+    };
+    return CallbackIterResult;
+}(iterresult));
+/* harmony default export */ var callbackiterresult = (CallbackIterResult);
+
+// CONCATENATED MODULE: ./src/types.ts
+var Frequency;
+(function (Frequency) {
+    Frequency[Frequency["YEARLY"] = 0] = "YEARLY";
+    Frequency[Frequency["MONTHLY"] = 1] = "MONTHLY";
+    Frequency[Frequency["WEEKLY"] = 2] = "WEEKLY";
+    Frequency[Frequency["DAILY"] = 3] = "DAILY";
+    Frequency[Frequency["HOURLY"] = 4] = "HOURLY";
+    Frequency[Frequency["MINUTELY"] = 5] = "MINUTELY";
+    Frequency[Frequency["SECONDLY"] = 6] = "SECONDLY";
+})(Frequency || (Frequency = {}));
+function freqIsDailyOrGreater(freq) {
+    return freq < Frequency.HOURLY;
+}
+
+// CONCATENATED MODULE: ./src/weekday.ts
+// =============================================================================
+// Weekday
+// =============================================================================
+var WDAYS = ['MO', 'TU', 'WE', 'TH', 'FR', 'SA', 'SU'];
+var Weekday = /** @class */ (function () {
+    function Weekday(weekday, n) {
+        if (n === 0)
+            throw new Error("Can't create weekday with n == 0");
+        this.weekday = weekday;
+        this.n = n;
+    }
+    // __call__ - Cannot call the object directly, do it through
+    // e.g. RRule.TH.nth(-1) instead,
+    Weekday.prototype.nth = function (n) {
+        return this.n === n ? this : new Weekday(this.weekday, n);
+    };
+    // __eq__
+    Weekday.prototype.equals = function (other) {
+        return this.weekday === other.weekday && this.n === other.n;
+    };
+    // __repr__
+    Weekday.prototype.toString = function () {
+        var s = WDAYS[this.weekday];
+        if (this.n)
+            s = (this.n > 0 ? '+' : '') + String(this.n) + s;
+        return s;
+    };
+    Weekday.prototype.getJsWeekday = function () {
+        return this.weekday === 6 ? 0 : this.weekday + 1;
+    };
+    return Weekday;
+}());
+
+
+// CONCATENATED MODULE: ./src/datetime.ts
+var datetime_extends = (undefined && undefined.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    }
+    return function (d, b) {
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+
+
+
+var Time = /** @class */ (function () {
+    function Time(hour, minute, second, millisecond) {
+        this.hour = hour;
+        this.minute = minute;
+        this.second = second;
+        this.millisecond = millisecond || 0;
+    }
+    Time.prototype.getHours = function () {
+        return this.hour;
+    };
+    Time.prototype.getMinutes = function () {
+        return this.minute;
+    };
+    Time.prototype.getSeconds = function () {
+        return this.second;
+    };
+    Time.prototype.getMilliseconds = function () {
+        return this.millisecond;
+    };
+    Time.prototype.getTime = function () {
+        return ((this.hour * 60 * 60 + this.minute * 60 + this.second) * 1000 +
+            this.millisecond);
+    };
+    return Time;
+}());
+
+var datetime_DateTime = /** @class */ (function (_super) {
+    datetime_extends(DateTime, _super);
+    function DateTime(year, month, day, hour, minute, second, millisecond) {
+        var _this = _super.call(this, hour, minute, second, millisecond) || this;
+        _this.year = year;
+        _this.month = month;
+        _this.day = day;
+        return _this;
+    }
+    DateTime.fromDate = function (date) {
+        return new this(date.getUTCFullYear(), date.getUTCMonth() + 1, date.getUTCDate(), date.getUTCHours(), date.getUTCMinutes(), date.getUTCSeconds(), date.valueOf() % 1000);
+    };
+    DateTime.prototype.getWeekday = function () {
+        return dateutil_dateutil.getWeekday(new Date(this.getTime()));
+    };
+    DateTime.prototype.getTime = function () {
+        return new Date(Date.UTC(this.year, this.month - 1, this.day, this.hour, this.minute, this.second, this.millisecond)).getTime();
+    };
+    DateTime.prototype.getDay = function () {
+        return this.day;
+    };
+    DateTime.prototype.getMonth = function () {
+        return this.month;
+    };
+    DateTime.prototype.getYear = function () {
+        return this.year;
+    };
+    DateTime.prototype.addYears = function (years) {
+        this.year += years;
+    };
+    DateTime.prototype.addMonths = function (months) {
+        this.month += months;
+        if (this.month > 12) {
+            var yearDiv = Math.floor(this.month / 12);
+            var monthMod = Object(helpers["i" /* pymod */])(this.month, 12);
+            this.month = monthMod;
+            this.year += yearDiv;
+            if (this.month === 0) {
+                this.month = 12;
+                --this.year;
+            }
+        }
+    };
+    DateTime.prototype.addWeekly = function (days, wkst) {
+        if (wkst > this.getWeekday()) {
+            this.day += -(this.getWeekday() + 1 + (6 - wkst)) + days * 7;
+        }
+        else {
+            this.day += -(this.getWeekday() - wkst) + days * 7;
+        }
+        this.fixDay();
+    };
+    DateTime.prototype.addDaily = function (days) {
+        this.day += days;
+        this.fixDay();
+    };
+    DateTime.prototype.addHours = function (hours, filtered, byhour) {
+        if (filtered) {
+            // Jump to one iteration before next day
+            this.hour += Math.floor((23 - this.hour) / hours) * hours;
+        }
+        while (true) {
+            this.hour += hours;
+            var _a = Object(helpers["a" /* divmod */])(this.hour, 24), dayDiv = _a.div, hourMod = _a.mod;
+            if (dayDiv) {
+                this.hour = hourMod;
+                this.addDaily(dayDiv);
+            }
+            if (Object(helpers["b" /* empty */])(byhour) || Object(helpers["c" /* includes */])(byhour, this.hour))
+                break;
+        }
+    };
+    DateTime.prototype.addMinutes = function (minutes, filtered, byhour, byminute) {
+        if (filtered) {
+            // Jump to one iteration before next day
+            this.minute +=
+                Math.floor((1439 - (this.hour * 60 + this.minute)) / minutes) * minutes;
+        }
+        while (true) {
+            this.minute += minutes;
+            var _a = Object(helpers["a" /* divmod */])(this.minute, 60), hourDiv = _a.div, minuteMod = _a.mod;
+            if (hourDiv) {
+                this.minute = minuteMod;
+                this.addHours(hourDiv, false, byhour);
+            }
+            if ((Object(helpers["b" /* empty */])(byhour) || Object(helpers["c" /* includes */])(byhour, this.hour)) &&
+                (Object(helpers["b" /* empty */])(byminute) || Object(helpers["c" /* includes */])(byminute, this.minute))) {
+                break;
+            }
+        }
+    };
+    DateTime.prototype.addSeconds = function (seconds, filtered, byhour, byminute, bysecond) {
+        if (filtered) {
+            // Jump to one iteration before next day
+            this.second +=
+                Math.floor((86399 - (this.hour * 3600 + this.minute * 60 + this.second)) / seconds) * seconds;
+        }
+        while (true) {
+            this.second += seconds;
+            var _a = Object(helpers["a" /* divmod */])(this.second, 60), minuteDiv = _a.div, secondMod = _a.mod;
+            if (minuteDiv) {
+                this.second = secondMod;
+                this.addMinutes(minuteDiv, false, byhour, byminute);
+            }
+            if ((Object(helpers["b" /* empty */])(byhour) || Object(helpers["c" /* includes */])(byhour, this.hour)) &&
+                (Object(helpers["b" /* empty */])(byminute) || Object(helpers["c" /* includes */])(byminute, this.minute)) &&
+                (Object(helpers["b" /* empty */])(bysecond) || Object(helpers["c" /* includes */])(bysecond, this.second))) {
+                break;
+            }
+        }
+    };
+    DateTime.prototype.fixDay = function () {
+        if (this.day <= 28) {
+            return;
+        }
+        var daysinmonth = dateutil_dateutil.monthRange(this.year, this.month - 1)[1];
+        if (this.day <= daysinmonth) {
+            return;
+        }
+        while (this.day > daysinmonth) {
+            this.day -= daysinmonth;
+            ++this.month;
+            if (this.month === 13) {
+                this.month = 1;
+                ++this.year;
+                if (this.year > dateutil_dateutil.MAXYEAR) {
+                    return;
+                }
+            }
+            daysinmonth = dateutil_dateutil.monthRange(this.year, this.month - 1)[1];
+        }
+    };
+    DateTime.prototype.add = function (options, filtered) {
+        var freq = options.freq, interval = options.interval, wkst = options.wkst, byhour = options.byhour, byminute = options.byminute, bysecond = options.bysecond;
+        switch (freq) {
+            case Frequency.YEARLY: return this.addYears(interval);
+            case Frequency.MONTHLY: return this.addMonths(interval);
+            case Frequency.WEEKLY: return this.addWeekly(interval, wkst);
+            case Frequency.DAILY: return this.addDaily(interval);
+            case Frequency.HOURLY: return this.addHours(interval, filtered, byhour);
+            case Frequency.MINUTELY: return this.addMinutes(interval, filtered, byhour, byminute);
+            case Frequency.SECONDLY: return this.addSeconds(interval, filtered, byhour, byminute, bysecond);
+        }
+    };
+    return DateTime;
+}(Time));
+
+
+// CONCATENATED MODULE: ./src/parseoptions.ts
+
+
+
+
+
+
+function initializeOptions(options) {
+    var invalid = [];
+    var keys = Object.keys(options);
+    var initializedOptions = {};
+    // Shallow copy for options and origOptions and check for invalid
+    keys.forEach(function (key) {
+        var value = options[key];
+        initializedOptions[key] = value;
+        if (!Object(helpers["c" /* includes */])(rrule_defaultKeys, key))
+            invalid.push(key);
+        if (src_dateutil.isDate(value) && !src_dateutil.isValidDate(value))
+            invalid.push(key);
+    });
+    if (invalid.length) {
+        throw new Error('Invalid options: ' + invalid.join(', '));
+    }
+    return initializedOptions;
+}
+function parseOptions(options) {
+    var opts = initializeOptions(options);
+    var keys = Object.keys(options);
+    // Merge in default options
+    rrule_defaultKeys.forEach(function (key) {
+        if (!Object(helpers["c" /* includes */])(keys, key) || !Object(helpers["f" /* isPresent */])(opts[key]))
+            opts[key] = DEFAULT_OPTIONS[key];
+    });
+    if (Object(helpers["f" /* isPresent */])(opts.byeaster))
+        opts.freq = src_rrule.YEARLY;
+    if (!(Object(helpers["f" /* isPresent */])(opts.freq) && src_rrule.FREQUENCIES[opts.freq])) {
+        throw new Error("Invalid frequency: " + opts.freq + " " + options.freq);
+    }
+    if (!opts.dtstart)
+        opts.dtstart = new Date(new Date().setMilliseconds(0));
+    if (!Object(helpers["f" /* isPresent */])(opts.wkst)) {
+        opts.wkst = src_rrule.MO.weekday;
+    }
+    else if (Object(helpers["e" /* isNumber */])(opts.wkst)) {
+        // cool, just keep it like that
+    }
+    else {
+        opts.wkst = opts.wkst.weekday;
+    }
+    if (Object(helpers["f" /* isPresent */])(opts.bysetpos)) {
+        if (Object(helpers["e" /* isNumber */])(opts.bysetpos))
+            opts.bysetpos = [opts.bysetpos];
+        for (var i = 0; i < opts.bysetpos.length; i++) {
+            var v = opts.bysetpos[i];
+            if (v === 0 || !(v >= -366 && v <= 366)) {
+                throw new Error('bysetpos must be between 1 and 366,' + ' or between -366 and -1');
+            }
+        }
+    }
+    if (!(Boolean(opts.byweekno) ||
+        Object(helpers["g" /* notEmpty */])(opts.byweekno) ||
+        Object(helpers["g" /* notEmpty */])(opts.byyearday) ||
+        Boolean(opts.bymonthday) ||
+        Object(helpers["g" /* notEmpty */])(opts.bymonthday) ||
+        Object(helpers["f" /* isPresent */])(opts.byweekday) ||
+        Object(helpers["f" /* isPresent */])(opts.byeaster))) {
+        switch (opts.freq) {
+            case src_rrule.YEARLY:
+                if (!opts.bymonth)
+                    opts.bymonth = opts.dtstart.getUTCMonth() + 1;
+                opts.bymonthday = opts.dtstart.getUTCDate();
+                break;
+            case src_rrule.MONTHLY:
+                opts.bymonthday = opts.dtstart.getUTCDate();
+                break;
+            case src_rrule.WEEKLY:
+                opts.byweekday = [src_dateutil.getWeekday(opts.dtstart)];
+                break;
+        }
+    }
+    // bymonth
+    if (Object(helpers["f" /* isPresent */])(opts.bymonth) && !Object(helpers["d" /* isArray */])(opts.bymonth)) {
+        opts.bymonth = [opts.bymonth];
+    }
+    // byyearday
+    if (Object(helpers["f" /* isPresent */])(opts.byyearday) &&
+        !Object(helpers["d" /* isArray */])(opts.byyearday) &&
+        Object(helpers["e" /* isNumber */])(opts.byyearday)) {
+        opts.byyearday = [opts.byyearday];
+    }
+    // bymonthday
+    if (!Object(helpers["f" /* isPresent */])(opts.bymonthday)) {
+        opts.bymonthday = [];
+        opts.bynmonthday = [];
+    }
+    else if (Object(helpers["d" /* isArray */])(opts.bymonthday)) {
+        var bymonthday = [];
+        var bynmonthday = [];
+        for (var i = 0; i < opts.bymonthday.length; i++) {
+            var v = opts.bymonthday[i];
+            if (v > 0) {
+                bymonthday.push(v);
+            }
+            else if (v < 0) {
+                bynmonthday.push(v);
+            }
+        }
+        opts.bymonthday = bymonthday;
+        opts.bynmonthday = bynmonthday;
+    }
+    else if (opts.bymonthday < 0) {
+        opts.bynmonthday = [opts.bymonthday];
+        opts.bymonthday = [];
+    }
+    else {
+        opts.bynmonthday = [];
+        opts.bymonthday = [opts.bymonthday];
+    }
+    // byweekno
+    if (Object(helpers["f" /* isPresent */])(opts.byweekno) && !Object(helpers["d" /* isArray */])(opts.byweekno)) {
+        opts.byweekno = [opts.byweekno];
+    }
+    // byweekday / bynweekday
+    if (!Object(helpers["f" /* isPresent */])(opts.byweekday)) {
+        opts.bynweekday = null;
+    }
+    else if (Object(helpers["e" /* isNumber */])(opts.byweekday)) {
+        opts.byweekday = [opts.byweekday];
+        opts.bynweekday = null;
+    }
+    else if (opts.byweekday instanceof Weekday) {
+        if (!opts.byweekday.n || opts.freq > src_rrule.MONTHLY) {
+            opts.byweekday = [opts.byweekday.weekday];
+            opts.bynweekday = null;
+        }
+        else {
+            opts.bynweekday = [[opts.byweekday.weekday, opts.byweekday.n]];
+            opts.byweekday = null;
+        }
+    }
+    else {
+        var byweekday = [];
+        var bynweekday = [];
+        for (var i = 0; i < opts.byweekday.length; i++) {
+            var wday = opts.byweekday[i];
+            if (Object(helpers["e" /* isNumber */])(wday)) {
+                byweekday.push(wday);
+                continue;
+            }
+            var wd = wday;
+            if (!wd.n || opts.freq > src_rrule.MONTHLY) {
+                byweekday.push(wd.weekday);
+            }
+            else {
+                bynweekday.push([wd.weekday, wd.n]);
+            }
+        }
+        opts.byweekday = Object(helpers["g" /* notEmpty */])(byweekday) ? byweekday : null;
+        opts.bynweekday = Object(helpers["g" /* notEmpty */])(bynweekday) ? bynweekday : null;
+    }
+    // byhour
+    if (!Object(helpers["f" /* isPresent */])(opts.byhour)) {
+        opts.byhour =
+            opts.freq < src_rrule.HOURLY ? [opts.dtstart.getUTCHours()] : null;
+    }
+    else if (Object(helpers["e" /* isNumber */])(opts.byhour)) {
+        opts.byhour = [opts.byhour];
+    }
+    // byminute
+    if (!Object(helpers["f" /* isPresent */])(opts.byminute)) {
+        opts.byminute =
+            opts.freq < src_rrule.MINUTELY ? [opts.dtstart.getUTCMinutes()] : null;
+    }
+    else if (Object(helpers["e" /* isNumber */])(opts.byminute)) {
+        opts.byminute = [opts.byminute];
+    }
+    // bysecond
+    if (!Object(helpers["f" /* isPresent */])(opts.bysecond)) {
+        opts.bysecond =
+            opts.freq < src_rrule.SECONDLY ? [opts.dtstart.getUTCSeconds()] : null;
+    }
+    else if (Object(helpers["e" /* isNumber */])(opts.bysecond)) {
+        opts.bysecond = [opts.bysecond];
+    }
+    return { parsedOptions: opts };
+}
+function buildTimeset(opts) {
+    var millisecondModulo = opts.dtstart.getTime() % 1000;
+    if (!freqIsDailyOrGreater(opts.freq)) {
+        return [];
+    }
+    var timeset = [];
+    opts.byhour.forEach(function (hour) {
+        opts.byminute.forEach(function (minute) {
+            opts.bysecond.forEach(function (second) {
+                timeset.push(new Time(hour, minute, second, millisecondModulo));
+            });
+        });
+    });
+    return timeset;
+}
+
+// CONCATENATED MODULE: ./src/parsestring.ts
+var __assign = (undefined && undefined.__assign) || function () {
+    __assign = Object.assign || function(t) {
+        for (var s, i = 1, n = arguments.length; i < n; i++) {
+            s = arguments[i];
+            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
+                t[p] = s[p];
+        }
+        return t;
+    };
+    return __assign.apply(this, arguments);
+};
+
+
+
+
+function parseString(rfcString) {
+    var options = rfcString.split('\n').map(parseLine).filter(function (x) { return x !== null; });
+    return __assign({}, options[0], options[1]);
+}
+function parseDtstart(line) {
+    var options = {};
+    var dtstartWithZone = /DTSTART(?:;TZID=([^:=]+?))?(?::|=)([^;\s]+)/i.exec(line);
+    if (!dtstartWithZone) {
+        return options;
+    }
+    var _ = dtstartWithZone[0], tzid = dtstartWithZone[1], dtstart = dtstartWithZone[2];
+    if (tzid) {
+        options.tzid = tzid;
+    }
+    options.dtstart = src_dateutil.untilStringToDate(dtstart);
+    return options;
+}
+function parseLine(rfcString) {
+    rfcString = rfcString.replace(/^\s+|\s+$/, '');
+    if (!rfcString.length)
+        return null;
+    var header = /^([A-Z]+?)[:;]/.exec(rfcString.toUpperCase());
+    if (!header) {
+        return parseRrule(rfcString);
+    }
+    var _ = header[0], key = header[1];
+    switch (key.toUpperCase()) {
+        case 'RRULE':
+        case 'EXRULE':
+            return parseRrule(rfcString);
+        case 'DTSTART':
+            return parseDtstart(rfcString);
+        default:
+            throw new Error("Unsupported RFC prop " + key + " in " + rfcString);
+    }
+}
+function parseRrule(line) {
+    var strippedLine = line.replace(/^RRULE:/i, '');
+    var options = parseDtstart(strippedLine);
+    var attrs = line.replace(/^(?:RRULE|EXRULE):/i, '').split(';');
+    attrs.forEach(function (attr) {
+        var _a = attr.split('='), key = _a[0], value = _a[1];
+        switch (key.toUpperCase()) {
+            case 'FREQ':
+                options.freq = Frequency[value.toUpperCase()];
+                break;
+            case 'WKST':
+                options.wkst = Days[value.toUpperCase()];
+                break;
+            case 'COUNT':
+            case 'INTERVAL':
+            case 'BYSETPOS':
+            case 'BYMONTH':
+            case 'BYMONTHDAY':
+            case 'BYYEARDAY':
+            case 'BYWEEKNO':
+            case 'BYHOUR':
+            case 'BYMINUTE':
+            case 'BYSECOND':
+                var num = parseNumber(value);
+                var optionKey = key.toLowerCase();
+                // @ts-ignore
+                options[optionKey] = num;
+                break;
+            case 'BYWEEKDAY':
+            case 'BYDAY':
+                options.byweekday = parseWeekday(value);
+                break;
+            case 'DTSTART':
+            case 'TZID':
+                // for backwards compatibility
+                var dtstart = parseDtstart(line);
+                options.tzid = dtstart.tzid;
+                options.dtstart = dtstart.dtstart;
+                break;
+            case 'UNTIL':
+                options.until = src_dateutil.untilStringToDate(value);
+                break;
+            case 'BYEASTER':
+                options.byeaster = Number(value);
+                break;
+            default:
+                throw new Error("Unknown RRULE property '" + key + "'");
+        }
+    });
+    return options;
+}
+function parseNumber(value) {
+    if (value.indexOf(',') !== -1) {
+        var values = value.split(',');
+        return values.map(parseIndividualNumber);
+    }
+    return parseIndividualNumber(value);
+}
+function parseIndividualNumber(value) {
+    if (/^[+-]?\d+$/.test(value)) {
+        return Number(value);
+    }
+    return value;
+}
+function parseWeekday(value) {
+    var days = value.split(',');
+    return days.map(function (day) {
+        if (day.length === 2) {
+            // MO, TU, ...
+            return Days[day]; // wday instanceof Weekday
+        }
+        // -1MO, +3FR, 1SO, ...
+        var parts = day.match(/^([+-]?\d)([A-Z]{2})$/);
+        var n = Number(parts[1]);
+        var wdaypart = parts[2];
+        var wday = Days[wdaypart].weekday;
+        return new Weekday(wday, n);
+    });
+}
+
+// EXTERNAL MODULE: external "luxon"
+var external_luxon_ = __webpack_require__(2);
+
+// CONCATENATED MODULE: ./src/datewithzone.ts
+
+
+var datewithzone_DateWithZone = /** @class */ (function () {
+    function DateWithZone(date, tzid) {
+        this.date = date;
+        this.tzid = tzid;
+    }
+    Object.defineProperty(DateWithZone.prototype, "isUTC", {
+        get: function () {
+            return !this.tzid || this.tzid.toUpperCase() === 'UTC';
+        },
+        enumerable: true,
+        configurable: true
+    });
+    DateWithZone.prototype.toString = function () {
+        var datestr = src_dateutil.timeToUntilString(this.date.getTime(), this.isUTC);
+        if (!this.isUTC) {
+            return ";TZID=" + this.tzid + ":" + datestr;
+        }
+        return ":" + datestr;
+    };
+    DateWithZone.prototype.getTime = function () {
+        return this.date.getTime();
+    };
+    DateWithZone.prototype.rezonedDate = function () {
+        if (this.isUTC) {
+            return this.date;
+        }
+        try {
+            var datetime = external_luxon_["DateTime"]
+                .fromJSDate(this.date);
+            var rezoned = datetime.setZone(this.tzid, { keepLocalTime: true });
+            return rezoned.toJSDate();
+        }
+        catch (e) {
+            if (e instanceof TypeError) {
+                console.error('Using TZID without Luxon available is unsupported. Returned times are in UTC, not the requested time zone');
+            }
+            return this.date;
+        }
+    };
+    return DateWithZone;
+}());
+
+
+// CONCATENATED MODULE: ./src/optionstostring.ts
+
+
+
+
+
+function optionsToString(options) {
+    var rrule = [];
+    var dtstart = '';
+    var keys = Object.keys(options);
+    var defaultKeys = Object.keys(DEFAULT_OPTIONS);
+    for (var i = 0; i < keys.length; i++) {
+        if (keys[i] === 'tzid')
+            continue;
+        if (!Object(helpers["c" /* includes */])(defaultKeys, keys[i]))
+            continue;
+        var key = keys[i].toUpperCase();
+        var value = options[keys[i]];
+        var outValue = '';
+        if (!Object(helpers["f" /* isPresent */])(value) || (Object(helpers["d" /* isArray */])(value) && !value.length))
+            continue;
+        switch (key) {
+            case 'FREQ':
+                outValue = src_rrule.FREQUENCIES[options.freq];
+                break;
+            case 'WKST':
+                if (Object(helpers["e" /* isNumber */])(value)) {
+                    outValue = new Weekday(value).toString();
+                }
+                else {
+                    outValue = value.toString();
+                }
+                break;
+            case 'BYWEEKDAY':
+                /*
+                NOTE: BYWEEKDAY is a special case.
+                RRule() deconstructs the rule.options.byweekday array
+                into an array of Weekday arguments.
+                On the other hand, rule.origOptions is an array of Weekdays.
+                We need to handle both cases here.
+                It might be worth change RRule to keep the Weekdays.
+      
+                Also, BYWEEKDAY (used by RRule) vs. BYDAY (RFC)
+      
+                */
+                key = 'BYDAY';
+                outValue = Object(helpers["m" /* toArray */])(value).map(function (wday) {
+                    if (wday instanceof Weekday) {
+                        return wday;
+                    }
+                    if (Object(helpers["d" /* isArray */])(wday)) {
+                        return new Weekday(wday[0], wday[1]);
+                    }
+                    return new Weekday(wday);
+                }).toString();
+                break;
+            case 'DTSTART':
+                dtstart = buildDtstart(value, options.tzid);
+                break;
+            case 'UNTIL':
+                outValue = src_dateutil.timeToUntilString(value, !options.tzid);
+                break;
+            default:
+                if (Object(helpers["d" /* isArray */])(value)) {
+                    var strValues = [];
+                    for (var j = 0; j < value.length; j++) {
+                        strValues[j] = String(value[j]);
+                    }
+                    outValue = strValues.toString();
+                }
+                else {
+                    outValue = String(value);
+                }
+        }
+        if (outValue) {
+            rrule.push([key, outValue]);
+        }
+    }
+    var rules = rrule.map(function (_a) {
+        var key = _a[0], value = _a[1];
+        return key + "=" + value.toString();
+    }).join(';');
+    var ruleString = '';
+    if (rules !== '') {
+        ruleString = "RRULE:" + rules;
+    }
+    return [dtstart, ruleString].filter(function (x) { return !!x; }).join('\n');
+}
+function buildDtstart(dtstart, tzid) {
+    if (!dtstart) {
+        return '';
+    }
+    return 'DTSTART' + new datewithzone_DateWithZone(new Date(dtstart), tzid).toString();
+}
+
+// CONCATENATED MODULE: ./src/cache.ts
+
+
+
+var cache_Cache = /** @class */ (function () {
+    function Cache() {
+        this.all = false;
+        this.before = [];
+        this.after = [];
+        this.between = [];
+    }
+    /**
+     * @param {String} what - all/before/after/between
+     * @param {Array,Date} value - an array of dates, one date, or null
+     * @param {Object?} args - _iter arguments
+     */
+    Cache.prototype._cacheAdd = function (what, value, args) {
+        if (value) {
+            value =
+                value instanceof Date
+                    ? src_dateutil.clone(value)
+                    : src_dateutil.cloneDates(value);
+        }
+        if (what === 'all') {
+            this.all = value;
+        }
+        else {
+            args._value = value;
+            this[what].push(args);
+        }
+    };
+    /**
+     * @return false - not in the cache
+     *         null  - cached, but zero occurrences (before/after)
+     *         Date  - cached (before/after)
+     *         []    - cached, but zero occurrences (all/between)
+     *         [Date1, DateN] - cached (all/between)
+     */
+    Cache.prototype._cacheGet = function (what, args) {
+        var cached = false;
+        var argsKeys = args ? Object.keys(args) : [];
+        var findCacheDiff = function (item) {
+            for (var i = 0; i < argsKeys.length; i++) {
+                var key = argsKeys[i];
+                if (String(args[key]) !== String(item[key])) {
+                    return true;
+                }
+            }
+            return false;
+        };
+        var cachedObject = this[what];
+        if (what === 'all') {
+            cached = this.all;
+        }
+        else if (Object(helpers["d" /* isArray */])(cachedObject)) {
+            // Let's see whether we've already called the
+            // 'what' method with the same 'args'
+            for (var i = 0; i < cachedObject.length; i++) {
+                var item = cachedObject[i];
+                if (argsKeys.length && findCacheDiff(item))
+                    continue;
+                cached = item._value;
+                break;
+            }
+        }
+        if (!cached && this.all) {
+            // Not in the cache, but we already know all the occurrences,
+            // so we can find the correct dates from the cached ones.
+            var iterResult = new iterresult(what, args);
+            for (var i = 0; i < this.all.length; i++) {
+                if (!iterResult.accept(this.all[i]))
+                    break;
+            }
+            cached = iterResult.getValue();
+            this._cacheAdd(what, cached, args);
+        }
+        return Object(helpers["d" /* isArray */])(cached)
+            ? src_dateutil.cloneDates(cached)
+            : cached instanceof Date
+                ? src_dateutil.clone(cached)
+                : cached;
+    };
+    return Cache;
+}());
+
+
+// CONCATENATED MODULE: ./src/masks.ts
+
+// =============================================================================
+// Date masks
+// =============================================================================
+// Every mask is 7 days longer to handle cross-year weekly periods.
+var M365MASK = Object(helpers["k" /* repeat */])(1, 31).concat(Object(helpers["k" /* repeat */])(2, 28), Object(helpers["k" /* repeat */])(3, 31), Object(helpers["k" /* repeat */])(4, 30), Object(helpers["k" /* repeat */])(5, 31), Object(helpers["k" /* repeat */])(6, 30), Object(helpers["k" /* repeat */])(7, 31), Object(helpers["k" /* repeat */])(8, 31), Object(helpers["k" /* repeat */])(9, 30), Object(helpers["k" /* repeat */])(10, 31), Object(helpers["k" /* repeat */])(11, 30), Object(helpers["k" /* repeat */])(12, 31), Object(helpers["k" /* repeat */])(1, 7));
+var M366MASK = Object(helpers["k" /* repeat */])(1, 31).concat(Object(helpers["k" /* repeat */])(2, 29), Object(helpers["k" /* repeat */])(3, 31), Object(helpers["k" /* repeat */])(4, 30), Object(helpers["k" /* repeat */])(5, 31), Object(helpers["k" /* repeat */])(6, 30), Object(helpers["k" /* repeat */])(7, 31), Object(helpers["k" /* repeat */])(8, 31), Object(helpers["k" /* repeat */])(9, 30), Object(helpers["k" /* repeat */])(10, 31), Object(helpers["k" /* repeat */])(11, 30), Object(helpers["k" /* repeat */])(12, 31), Object(helpers["k" /* repeat */])(1, 7));
+var M28 = Object(helpers["j" /* range */])(1, 29);
+var M29 = Object(helpers["j" /* range */])(1, 30);
+var M30 = Object(helpers["j" /* range */])(1, 31);
+var M31 = Object(helpers["j" /* range */])(1, 32);
+var MDAY366MASK = M31.concat(M29, M31, M30, M31, M30, M31, M31, M30, M31, M30, M31, M31.slice(0, 7));
+var MDAY365MASK = M31.concat(M28, M31, M30, M31, M30, M31, M31, M30, M31, M30, M31, M31.slice(0, 7));
+var NM28 = Object(helpers["j" /* range */])(-28, 0);
+var NM29 = Object(helpers["j" /* range */])(-29, 0);
+var NM30 = Object(helpers["j" /* range */])(-30, 0);
+var NM31 = Object(helpers["j" /* range */])(-31, 0);
+var NMDAY366MASK = NM31.concat(NM29, NM31, NM30, NM31, NM30, NM31, NM31, NM30, NM31, NM30, NM31, NM31.slice(0, 7));
+var NMDAY365MASK = NM31.concat(NM28, NM31, NM30, NM31, NM30, NM31, NM31, NM30, NM31, NM30, NM31, NM31.slice(0, 7));
+var M366RANGE = [0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366];
+var M365RANGE = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365];
+var WDAYMASK = (function () {
+    var wdaymask = [];
+    for (var i = 0; i < 55; i++)
+        wdaymask = wdaymask.concat(Object(helpers["j" /* range */])(7));
+    return wdaymask;
+})();
+
+
+// CONCATENATED MODULE: ./src/iterinfo/yearinfo.ts
+var yearinfo_assign = (undefined && undefined.__assign) || function () {
+    yearinfo_assign = Object.assign || function(t) {
+        for (var s, i = 1, n = arguments.length; i < n; i++) {
+            s = arguments[i];
+            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
+                t[p] = s[p];
+        }
+        return t;
+    };
+    return yearinfo_assign.apply(this, arguments);
+};
+
+
+
+function rebuildYear(year, options) {
+    var firstyday = new Date(Date.UTC(year, 0, 1));
+    var yearlen = src_dateutil.isLeapYear(year) ? 366 : 365;
+    var nextyearlen = src_dateutil.isLeapYear(year + 1) ? 366 : 365;
+    var yearordinal = src_dateutil.toOrdinal(firstyday);
+    var yearweekday = src_dateutil.getWeekday(firstyday);
+    var result = yearinfo_assign({ yearlen: yearlen,
+        nextyearlen: nextyearlen,
+        yearordinal: yearordinal,
+        yearweekday: yearweekday }, baseYearMasks(year), { wnomask: null });
+    if (Object(helpers["b" /* empty */])(options.byweekno)) {
+        return result;
+    }
+    result.wnomask = Object(helpers["k" /* repeat */])(0, yearlen + 7);
+    var firstwkst;
+    var wyearlen;
+    var no1wkst = firstwkst = Object(helpers["i" /* pymod */])(7 - yearweekday + options.wkst, 7);
+    if (no1wkst >= 4) {
+        no1wkst = 0;
+        // Number of days in the year, plus the days we got
+        // from last year.
+        wyearlen =
+            result.yearlen + Object(helpers["i" /* pymod */])(yearweekday - options.wkst, 7);
+    }
+    else {
+        // Number of days in the year, minus the days we
+        // left in last year.
+        wyearlen = yearlen - no1wkst;
+    }
+    var div = Math.floor(wyearlen / 7);
+    var mod = Object(helpers["i" /* pymod */])(wyearlen, 7);
+    var numweeks = Math.floor(div + mod / 4);
+    for (var j = 0; j < options.byweekno.length; j++) {
+        var n = options.byweekno[j];
+        if (n < 0) {
+            n += numweeks + 1;
+        }
+        if (!(n > 0 && n <= numweeks)) {
+            continue;
+        }
+        var i = void 0;
+        if (n > 1) {
+            i = no1wkst + (n - 1) * 7;
+            if (no1wkst !== firstwkst) {
+                i -= 7 - firstwkst;
+            }
+        }
+        else {
+            i = no1wkst;
+        }
+        for (var k = 0; k < 7; k++) {
+            result.wnomask[i] = 1;
+            i++;
+            if (result.wdaymask[i] === options.wkst)
+                break;
+        }
+    }
+    if (Object(helpers["c" /* includes */])(options.byweekno, 1)) {
+        // Check week number 1 of next year as well
+        // orig-TODO : Check -numweeks for next year.
+        var i = no1wkst + numweeks * 7;
+        if (no1wkst !== firstwkst)
+            i -= 7 - firstwkst;
+        if (i < yearlen) {
+            // If week starts in next year, we
+            // don't care about it.
+            for (var j = 0; j < 7; j++) {
+                result.wnomask[i] = 1;
+                i += 1;
+                if (result.wdaymask[i] === options.wkst)
+                    break;
+            }
+        }
+    }
+    if (no1wkst) {
+        // Check last week number of last year as
+        // well. If no1wkst is 0, either the year
+        // started on week start, or week number 1
+        // got days from last year, so there are no
+        // days from last year's last week number in
+        // this year.
+        var lnumweeks = void 0;
+        if (!Object(helpers["c" /* includes */])(options.byweekno, -1)) {
+            var lyearweekday = src_dateutil.getWeekday(new Date(Date.UTC(year - 1, 0, 1)));
+            var lno1wkst = Object(helpers["i" /* pymod */])(7 - lyearweekday.valueOf() + options.wkst, 7);
+            var lyearlen = src_dateutil.isLeapYear(year - 1) ? 366 : 365;
+            var weekst = void 0;
+            if (lno1wkst >= 4) {
+                lno1wkst = 0;
+                weekst = lyearlen + Object(helpers["i" /* pymod */])(lyearweekday - options.wkst, 7);
+            }
+            else {
+                weekst = yearlen - no1wkst;
+            }
+            lnumweeks = Math.floor(52 + Object(helpers["i" /* pymod */])(weekst, 7) / 4);
+        }
+        else {
+            lnumweeks = -1;
+        }
+        if (Object(helpers["c" /* includes */])(options.byweekno, lnumweeks)) {
+            for (var i = 0; i < no1wkst; i++)
+                result.wnomask[i] = 1;
+        }
+    }
+    return result;
+}
+function baseYearMasks(year) {
+    var yearlen = src_dateutil.isLeapYear(year) ? 366 : 365;
+    var firstyday = new Date(Date.UTC(year, 0, 1));
+    var wday = src_dateutil.getWeekday(firstyday);
+    if (yearlen === 365) {
+        return {
+            mmask: M365MASK,
+            mdaymask: MDAY365MASK,
+            nmdaymask: NMDAY365MASK,
+            wdaymask: WDAYMASK.slice(wday),
+            mrange: M365RANGE
+        };
+    }
+    return {
+        mmask: M366MASK,
+        mdaymask: MDAY366MASK,
+        nmdaymask: NMDAY366MASK,
+        wdaymask: WDAYMASK.slice(wday),
+        mrange: M366RANGE
+    };
+}
+
+// CONCATENATED MODULE: ./src/iterinfo/monthinfo.ts
+
+
+function rebuildMonth(year, month, yearlen, mrange, wdaymask, options) {
+    var result = {
+        lastyear: year,
+        lastmonth: month,
+        nwdaymask: []
+    };
+    var ranges = [];
+    if (options.freq === src_rrule.YEARLY) {
+        if (Object(helpers["b" /* empty */])(options.bymonth)) {
+            ranges = [[0, yearlen]];
+        }
+        else {
+            for (var j = 0; j < options.bymonth.length; j++) {
+                month = options.bymonth[j];
+                ranges.push(mrange.slice(month - 1, month + 1));
+            }
+        }
+    }
+    else if (options.freq === src_rrule.MONTHLY) {
+        ranges = [mrange.slice(month - 1, month + 1)];
+    }
+    if (Object(helpers["b" /* empty */])(ranges)) {
+        return result;
+    }
+    // Weekly frequency won't get here, so we may not
+    // care about cross-year weekly periods.
+    result.nwdaymask = Object(helpers["k" /* repeat */])(0, yearlen);
+    for (var j = 0; j < ranges.length; j++) {
+        var rang = ranges[j];
+        var first = rang[0];
+        var last = rang[1] - 1;
+        for (var k = 0; k < options.bynweekday.length; k++) {
+            var i = void 0;
+            var _a = options.bynweekday[k], wday = _a[0], n = _a[1];
+            if (n < 0) {
+                i = last + (n + 1) * 7;
+                i -= Object(helpers["i" /* pymod */])(wdaymask[i] - wday, 7);
+            }
+            else {
+                i = first + (n - 1) * 7;
+                i += Object(helpers["i" /* pymod */])(7 - wdaymask[i] + wday, 7);
+            }
+            if (first <= i && i <= last)
+                result.nwdaymask[i] = 1;
+        }
+    }
+    return result;
+}
+
+// CONCATENATED MODULE: ./src/iterinfo/easter.ts
+function easter(y, offset) {
+    if (offset === void 0) { offset = 0; }
+    var a = y % 19;
+    var b = Math.floor(y / 100);
+    var c = y % 100;
+    var d = Math.floor(b / 4);
+    var e = b % 4;
+    var f = Math.floor((b + 8) / 25);
+    var g = Math.floor((b - f + 1) / 3);
+    var h = Math.floor(19 * a + b - d - g + 15) % 30;
+    var i = Math.floor(c / 4);
+    var k = c % 4;
+    var l = Math.floor(32 + 2 * e + 2 * i - h - k) % 7;
+    var m = Math.floor((a + 11 * h + 22 * l) / 451);
+    var month = Math.floor((h + l - 7 * m + 114) / 31);
+    var day = ((h + l - 7 * m + 114) % 31) + 1;
+    var date = Date.UTC(y, month - 1, day + offset);
+    var yearStart = Date.UTC(y, 0, 1);
+    return [Math.ceil((date - yearStart) / (1000 * 60 * 60 * 24))];
+}
+
+// CONCATENATED MODULE: ./src/iterinfo/index.ts
+
+
+
+
+
+
+
+// =============================================================================
+// Iterinfo
+// =============================================================================
+var iterinfo_Iterinfo = /** @class */ (function () {
+    function Iterinfo(options) {
+        this.options = options;
+    }
+    Iterinfo.prototype.rebuild = function (year, month) {
+        var options = this.options;
+        if (year !== this.lastyear) {
+            this.yearinfo = rebuildYear(year, options);
+        }
+        if (Object(helpers["g" /* notEmpty */])(options.bynweekday) &&
+            (month !== this.lastmonth || year !== this.lastyear)) {
+            var _a = this.yearinfo, yearlen = _a.yearlen, mrange = _a.mrange, wdaymask = _a.wdaymask;
+            this.monthinfo = rebuildMonth(year, month, yearlen, mrange, wdaymask, options);
+        }
+        if (Object(helpers["f" /* isPresent */])(options.byeaster)) {
+            this.eastermask = easter(year, options.byeaster);
+        }
+    };
+    Object.defineProperty(Iterinfo.prototype, "lastyear", {
+        get: function () {
+            return this.monthinfo ? this.monthinfo.lastyear : null;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Iterinfo.prototype, "lastmonth", {
+        get: function () {
+            return this.monthinfo ? this.monthinfo.lastmonth : null;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Iterinfo.prototype, "yearlen", {
+        get: function () {
+            return this.yearinfo.yearlen;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Iterinfo.prototype, "yearordinal", {
+        get: function () {
+            return this.yearinfo.yearordinal;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Iterinfo.prototype, "mrange", {
+        get: function () {
+            return this.yearinfo.mrange;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Iterinfo.prototype, "wdaymask", {
+        get: function () {
+            return this.yearinfo.wdaymask;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Iterinfo.prototype, "mmask", {
+        get: function () {
+            return this.yearinfo.mmask;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Iterinfo.prototype, "wnomask", {
+        get: function () {
+            return this.yearinfo.wnomask;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Iterinfo.prototype, "nwdaymask", {
+        get: function () {
+            return this.monthinfo ? this.monthinfo.nwdaymask : [];
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Iterinfo.prototype, "nextyearlen", {
+        get: function () {
+            return this.yearinfo.nextyearlen;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Iterinfo.prototype, "mdaymask", {
+        get: function () {
+            return this.yearinfo.mdaymask;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Iterinfo.prototype, "nmdaymask", {
+        get: function () {
+            return this.yearinfo.nmdaymask;
+        },
+        enumerable: true,
+        configurable: true
+    });
+    Iterinfo.prototype.ydayset = function () {
+        return [Object(helpers["j" /* range */])(this.yearlen), 0, this.yearlen];
+    };
+    Iterinfo.prototype.mdayset = function (_, month, __) {
+        var start = this.mrange[month - 1];
+        var end = this.mrange[month];
+        var set = Object(helpers["k" /* repeat */])(null, this.yearlen);
+        for (var i = start; i < end; i++)
+            set[i] = i;
+        return [set, start, end];
+    };
+    Iterinfo.prototype.wdayset = function (year, month, day) {
+        // We need to handle cross-year weeks here.
+        var set = Object(helpers["k" /* repeat */])(null, this.yearlen + 7);
+        var i = src_dateutil.toOrdinal(new Date(Date.UTC(year, month - 1, day))) -
+            this.yearordinal;
+        var start = i;
+        for (var j = 0; j < 7; j++) {
+            set[i] = i;
+            ++i;
+            if (this.wdaymask[i] === this.options.wkst)
+                break;
+        }
+        return [set, start, i];
+    };
+    Iterinfo.prototype.ddayset = function (year, month, day) {
+        var set = Object(helpers["k" /* repeat */])(null, this.yearlen);
+        var i = src_dateutil.toOrdinal(new Date(Date.UTC(year, month - 1, day))) -
+            this.yearordinal;
+        set[i] = i;
+        return [set, i, i + 1];
+    };
+    Iterinfo.prototype.htimeset = function (hour, _, second, millisecond) {
+        var _this = this;
+        var set = [];
+        this.options.byminute.forEach(function (minute) {
+            set = set.concat(_this.mtimeset(hour, minute, second, millisecond));
+        });
+        src_dateutil.sort(set);
+        return set;
+    };
+    Iterinfo.prototype.mtimeset = function (hour, minute, _, millisecond) {
+        var set = this.options.bysecond.map(function (second) {
+            return new Time(hour, minute, second, millisecond);
+        });
+        src_dateutil.sort(set);
+        return set;
+    };
+    Iterinfo.prototype.stimeset = function (hour, minute, second, millisecond) {
+        return [new Time(hour, minute, second, millisecond)];
+    };
+    Iterinfo.prototype.getdayset = function (freq) {
+        switch (freq) {
+            case Frequency.YEARLY: return this.ydayset.bind(this);
+            case Frequency.MONTHLY: return this.mdayset.bind(this);
+            case Frequency.WEEKLY: return this.wdayset.bind(this);
+            case Frequency.DAILY: return this.ddayset.bind(this);
+            default: return this.ddayset.bind(this);
+        }
+    };
+    Iterinfo.prototype.gettimeset = function (freq) {
+        switch (freq) {
+            case Frequency.HOURLY: return this.htimeset.bind(this);
+            case Frequency.MINUTELY: return this.mtimeset.bind(this);
+            case Frequency.SECONDLY: return this.stimeset.bind(this);
+        }
+    };
+    return Iterinfo;
+}());
+/* harmony default export */ var iterinfo = (iterinfo_Iterinfo);
+
+// CONCATENATED MODULE: ./src/iter/poslist.ts
+
+
+function buildPoslist(bysetpos, timeset, start, end, ii, dayset) {
+    var poslist = [];
+    for (var j = 0; j < bysetpos.length; j++) {
+        var daypos = void 0;
+        var timepos = void 0;
+        var pos = bysetpos[j];
+        if (pos < 0) {
+            daypos = Math.floor(pos / timeset.length);
+            timepos = Object(helpers["i" /* pymod */])(pos, timeset.length);
+        }
+        else {
+            daypos = Math.floor((pos - 1) / timeset.length);
+            timepos = Object(helpers["i" /* pymod */])(pos - 1, timeset.length);
+        }
+        var tmp = [];
+        for (var k = start; k < end; k++) {
+            var val = dayset[k];
+            if (!Object(helpers["f" /* isPresent */])(val))
+                continue;
+            tmp.push(val);
+        }
+        var i = void 0;
+        if (daypos < 0) {
+            i = tmp.slice(daypos)[0];
+        }
+        else {
+            i = tmp[daypos];
+        }
+        var time = timeset[timepos];
+        var date = src_dateutil.fromOrdinal(ii.yearordinal + i);
+        var res = src_dateutil.combine(date, time);
+        // XXX: can this ever be in the array?
+        // - compare the actual date instead?
+        if (!Object(helpers["c" /* includes */])(poslist, res))
+            poslist.push(res);
+    }
+    src_dateutil.sort(poslist);
+    return poslist;
+}
+
+// CONCATENATED MODULE: ./src/iter/index.ts
+
+
+
+
+
+
+
+
+
+function iter(iterResult, options) {
+    var dtstart = options.dtstart, freq = options.freq, interval = options.interval, until = options.until, bysetpos = options.bysetpos;
+    var count = options.count;
+    if (count === 0 || interval === 0) {
+        return emitResult(iterResult);
+    }
+    var counterDate = datetime_DateTime.fromDate(dtstart);
+    var ii = new iterinfo(options);
+    ii.rebuild(counterDate.year, counterDate.month);
+    var timeset = makeTimeset(ii, counterDate, options);
+    while (true) {
+        var _a = ii.getdayset(freq)(counterDate.year, counterDate.month, counterDate.day), dayset = _a[0], start = _a[1], end = _a[2];
+        var filtered = removeFilteredDays(dayset, start, end, ii, options);
+        if (Object(helpers["g" /* notEmpty */])(bysetpos)) {
+            var poslist = buildPoslist(bysetpos, timeset, start, end, ii, dayset);
+            for (var j = 0; j < poslist.length; j++) {
+                var res = poslist[j];
+                if (until && res > until) {
+                    return emitResult(iterResult);
+                }
+                if (res >= dtstart) {
+                    var rezonedDate = rezoneIfNeeded(res, options);
+                    if (!iterResult.accept(rezonedDate)) {
+                        return emitResult(iterResult);
+                    }
+                    if (count) {
+                        --count;
+                        if (!count) {
+                            return emitResult(iterResult);
+                        }
+                    }
+                }
+            }
+        }
+        else {
+            for (var j = start; j < end; j++) {
+                var currentDay = dayset[j];
+                if (!Object(helpers["f" /* isPresent */])(currentDay)) {
+                    continue;
+                }
+                var date = src_dateutil.fromOrdinal(ii.yearordinal + currentDay);
+                for (var k = 0; k < timeset.length; k++) {
+                    var time = timeset[k];
+                    var res = src_dateutil.combine(date, time);
+                    if (until && res > until) {
+                        return emitResult(iterResult);
+                    }
+                    if (res >= dtstart) {
+                        var rezonedDate = rezoneIfNeeded(res, options);
+                        if (!iterResult.accept(rezonedDate)) {
+                            return emitResult(iterResult);
+                        }
+                        if (count) {
+                            --count;
+                            if (!count) {
+                                return emitResult(iterResult);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        if (options.interval === 0) {
+            return emitResult(iterResult);
+        }
+        // Handle frequency and interval
+        counterDate.add(options, filtered);
+        if (counterDate.year > src_dateutil.MAXYEAR) {
+            return emitResult(iterResult);
+        }
+        if (!freqIsDailyOrGreater(freq)) {
+            timeset = ii.gettimeset(freq)(counterDate.hour, counterDate.minute, counterDate.second, 0);
+        }
+        ii.rebuild(counterDate.year, counterDate.month);
+    }
+}
+function isFiltered(ii, currentDay, options) {
+    var bymonth = options.bymonth, byweekno = options.byweekno, byweekday = options.byweekday, byeaster = options.byeaster, bymonthday = options.bymonthday, bynmonthday = options.bynmonthday, byyearday = options.byyearday;
+    return ((Object(helpers["g" /* notEmpty */])(bymonth) && !Object(helpers["c" /* includes */])(bymonth, ii.mmask[currentDay])) ||
+        (Object(helpers["g" /* notEmpty */])(byweekno) && !ii.wnomask[currentDay]) ||
+        (Object(helpers["g" /* notEmpty */])(byweekday) && !Object(helpers["c" /* includes */])(byweekday, ii.wdaymask[currentDay])) ||
+        (Object(helpers["g" /* notEmpty */])(ii.nwdaymask) && !ii.nwdaymask[currentDay]) ||
+        (byeaster !== null && !Object(helpers["c" /* includes */])(ii.eastermask, currentDay)) ||
+        ((Object(helpers["g" /* notEmpty */])(bymonthday) || Object(helpers["g" /* notEmpty */])(bynmonthday)) &&
+            !Object(helpers["c" /* includes */])(bymonthday, ii.mdaymask[currentDay]) &&
+            !Object(helpers["c" /* includes */])(bynmonthday, ii.nmdaymask[currentDay])) ||
+        (Object(helpers["g" /* notEmpty */])(byyearday) &&
+            ((currentDay < ii.yearlen &&
+                !Object(helpers["c" /* includes */])(byyearday, currentDay + 1) &&
+                !Object(helpers["c" /* includes */])(byyearday, -ii.yearlen + currentDay)) ||
+                (currentDay >= ii.yearlen &&
+                    !Object(helpers["c" /* includes */])(byyearday, currentDay + 1 - ii.yearlen) &&
+                    !Object(helpers["c" /* includes */])(byyearday, -ii.nextyearlen + currentDay - ii.yearlen)))));
+}
+function rezoneIfNeeded(date, options) {
+    return new datewithzone_DateWithZone(date, options.tzid).rezonedDate();
+}
+function emitResult(iterResult) {
+    return iterResult.getValue();
+}
+function removeFilteredDays(dayset, start, end, ii, options) {
+    var filtered = false;
+    for (var dayCounter = start; dayCounter < end; dayCounter++) {
+        var currentDay = dayset[dayCounter];
+        filtered = isFiltered(ii, currentDay, options);
+        if (filtered)
+            dayset[currentDay] = null;
+    }
+    return filtered;
+}
+function makeTimeset(ii, counterDate, options) {
+    var freq = options.freq, byhour = options.byhour, byminute = options.byminute, bysecond = options.bysecond;
+    if (freqIsDailyOrGreater(freq)) {
+        return buildTimeset(options);
+    }
+    if ((freq >= src_rrule.HOURLY &&
+        Object(helpers["g" /* notEmpty */])(byhour) &&
+        !Object(helpers["c" /* includes */])(byhour, counterDate.hour)) ||
+        (freq >= src_rrule.MINUTELY &&
+            Object(helpers["g" /* notEmpty */])(byminute) &&
+            !Object(helpers["c" /* includes */])(byminute, counterDate.minute)) ||
+        (freq >= src_rrule.SECONDLY &&
+            Object(helpers["g" /* notEmpty */])(bysecond) &&
+            !Object(helpers["c" /* includes */])(bysecond, counterDate.second))) {
+        return [];
+    }
+    return ii.gettimeset(freq)(counterDate.hour, counterDate.minute, counterDate.second, counterDate.millisecond);
+}
+
+// CONCATENATED MODULE: ./src/rrule.ts
+
+
+
+
+
+
+
+
+
+
+var getnlp = function () {
+    // Lazy, runtime import to avoid circular refs.
+    if (!getnlp._nlp) {
+        getnlp._nlp = __webpack_require__(3);
+    }
+    return getnlp._nlp;
+};
+// =============================================================================
+// RRule
+// =============================================================================
+var Days = {
+    MO: new Weekday(0),
+    TU: new Weekday(1),
+    WE: new Weekday(2),
+    TH: new Weekday(3),
+    FR: new Weekday(4),
+    SA: new Weekday(5),
+    SU: new Weekday(6)
+};
+var DEFAULT_OPTIONS = {
+    freq: Frequency.YEARLY,
+    dtstart: null,
+    interval: 1,
+    wkst: Days.MO,
+    count: null,
+    until: null,
+    tzid: null,
+    bysetpos: null,
+    bymonth: null,
+    bymonthday: null,
+    bynmonthday: null,
+    byyearday: null,
+    byweekno: null,
+    byweekday: null,
+    bynweekday: null,
+    byhour: null,
+    byminute: null,
+    bysecond: null,
+    byeaster: null
+};
+var rrule_defaultKeys = Object.keys(DEFAULT_OPTIONS);
+/**
+ *
+ * @param {Options?} options - see <http://labix.org/python-dateutil/#head-cf004ee9a75592797e076752b2a889c10f445418>
+ *        The only required option is `freq`, one of RRule.YEARLY, RRule.MONTHLY, ...
+ * @constructor
+ */
+var rrule_RRule = /** @class */ (function () {
+    function RRule(options, noCache) {
+        if (options === void 0) { options = {}; }
+        if (noCache === void 0) { noCache = false; }
+        // RFC string
+        this._cache = noCache ? null : new cache_Cache();
+        // used by toString()
+        this.origOptions = initializeOptions(options);
+        var parsedOptions = parseOptions(options).parsedOptions;
+        this.options = parsedOptions;
+    }
+    RRule.parseText = function (text, language) {
+        return getnlp().parseText(text, language);
+    };
+    RRule.fromText = function (text, language) {
+        return getnlp().fromText(text, language);
+    };
+    RRule.fromString = function (str) {
+        return new RRule(RRule.parseString(str) || undefined);
+    };
+    RRule.prototype._iter = function (iterResult) {
+        return iter(iterResult, this.options);
+    };
+    RRule.prototype._cacheGet = function (what, args) {
+        if (!this._cache)
+            return false;
+        return this._cache._cacheGet(what, args);
+    };
+    RRule.prototype._cacheAdd = function (what, value, args) {
+        if (!this._cache)
+            return;
+        return this._cache._cacheAdd(what, value, args);
+    };
+    /**
+     * @param {Function} iterator - optional function that will be called
+     *                   on each date that is added. It can return false
+     *                   to stop the iteration.
+     * @return Array containing all recurrences.
+     */
+    RRule.prototype.all = function (iterator) {
+        if (iterator) {
+            return this._iter(new callbackiterresult('all', {}, iterator));
+        }
+        var result = this._cacheGet('all');
+        if (result === false) {
+            result = this._iter(new iterresult('all', {}));
+            this._cacheAdd('all', result);
+        }
+        return result;
+    };
+    /**
+     * Returns all the occurrences of the rrule between after and before.
+     * The inc keyword defines what happens if after and/or before are
+     * themselves occurrences. With inc == True, they will be included in the
+     * list, if they are found in the recurrence set.
+     * @return Array
+     */
+    RRule.prototype.between = function (after, before, inc, iterator) {
+        if (inc === void 0) { inc = false; }
+        if (!src_dateutil.isValidDate(after) || !src_dateutil.isValidDate(before))
+            throw new Error('Invalid date passed in to RRule.between');
+        var args = {
+            before: before,
+            after: after,
+            inc: inc
+        };
+        if (iterator) {
+            return this._iter(new callbackiterresult('between', args, iterator));
+        }
+        var result = this._cacheGet('between', args);
+        if (result === false) {
+            result = this._iter(new iterresult('between', args));
+            this._cacheAdd('between', result, args);
+        }
+        return result;
+    };
+    /**
+     * Returns the last recurrence before the given datetime instance.
+     * The inc keyword defines what happens if dt is an occurrence.
+     * With inc == True, if dt itself is an occurrence, it will be returned.
+     * @return Date or null
+     */
+    RRule.prototype.before = function (dt, inc) {
+        if (inc === void 0) { inc = false; }
+        if (!src_dateutil.isValidDate(dt))
+            throw new Error('Invalid date passed in to RRule.before');
+        var args = { dt: dt, inc: inc };
+        var result = this._cacheGet('before', args);
+        if (result === false) {
+            result = this._iter(new iterresult('before', args));
+            this._cacheAdd('before', result, args);
+        }
+        return result;
+    };
+    /**
+     * Returns the first recurrence after the given datetime instance.
+     * The inc keyword defines what happens if dt is an occurrence.
+     * With inc == True, if dt itself is an occurrence, it will be returned.
+     * @return Date or null
+     */
+    RRule.prototype.after = function (dt, inc) {
+        if (inc === void 0) { inc = false; }
+        if (!src_dateutil.isValidDate(dt))
+            throw new Error('Invalid date passed in to RRule.after');
+        var args = { dt: dt, inc: inc };
+        var result = this._cacheGet('after', args);
+        if (result === false) {
+            result = this._iter(new iterresult('after', args));
+            this._cacheAdd('after', result, args);
+        }
+        return result;
+    };
+    /**
+     * Returns the number of recurrences in this set. It will have go trough
+     * the whole recurrence, if this hasn't been done before.
+     */
+    RRule.prototype.count = function () {
+        return this.all().length;
+    };
+    /**
+     * Converts the rrule into its string representation
+     * @see <http://www.ietf.org/rfc/rfc2445.txt>
+     * @return String
+     */
+    RRule.prototype.toString = function () {
+        return optionsToString(this.origOptions);
+    };
+    /**
+     * Will convert all rules described in nlp:ToText
+     * to text.
+     */
+    RRule.prototype.toText = function (gettext, language) {
+        return getnlp().toText(this, gettext, language);
+    };
+    RRule.prototype.isFullyConvertibleToText = function () {
+        return getnlp().isFullyConvertible(this);
+    };
+    /**
+     * @return a RRule instance with the same freq and options
+     *          as this one (cache is not cloned)
+     */
+    RRule.prototype.clone = function () {
+        return new RRule(this.origOptions);
+    };
+    // RRule class 'constants'
+    RRule.FREQUENCIES = [
+        'YEARLY',
+        'MONTHLY',
+        'WEEKLY',
+        'DAILY',
+        'HOURLY',
+        'MINUTELY',
+        'SECONDLY'
+    ];
+    RRule.YEARLY = Frequency.YEARLY;
+    RRule.MONTHLY = Frequency.MONTHLY;
+    RRule.WEEKLY = Frequency.WEEKLY;
+    RRule.DAILY = Frequency.DAILY;
+    RRule.HOURLY = Frequency.HOURLY;
+    RRule.MINUTELY = Frequency.MINUTELY;
+    RRule.SECONDLY = Frequency.SECONDLY;
+    RRule.MO = Days.MO;
+    RRule.TU = Days.TU;
+    RRule.WE = Days.WE;
+    RRule.TH = Days.TH;
+    RRule.FR = Days.FR;
+    RRule.SA = Days.SA;
+    RRule.SU = Days.SU;
+    RRule.parseString = parseString;
+    RRule.optionsToString = optionsToString;
+    return RRule;
+}());
+/* harmony default export */ var src_rrule = (rrule_RRule);
+
+// CONCATENATED MODULE: ./src/iterset.ts
+
+
+
+function iterSet(iterResult, _rrule, _exrule, _rdate, _exdate, tzid) {
+    var _exdateHash = {};
+    var _accept = iterResult.accept;
+    function evalExdate(after, before) {
+        _exrule.forEach(function (rrule) {
+            rrule.between(after, before, true).forEach(function (date) {
+                _exdateHash[Number(date)] = true;
+            });
+        });
+    }
+    _exdate.forEach(function (date) {
+        var zonedDate = new datewithzone_DateWithZone(date, tzid).rezonedDate();
+        _exdateHash[Number(zonedDate)] = true;
+    });
+    iterResult.accept = function (date) {
+        var dt = Number(date);
+        if (!_exdateHash[dt]) {
+            evalExdate(new Date(dt - 1), new Date(dt + 1));
+            if (!_exdateHash[dt]) {
+                _exdateHash[dt] = true;
+                return _accept.call(this, date);
+            }
+        }
+        return true;
+    };
+    if (iterResult.method === 'between') {
+        evalExdate(iterResult.args.after, iterResult.args.before);
+        iterResult.accept = function (date) {
+            var dt = Number(date);
+            if (!_exdateHash[dt]) {
+                _exdateHash[dt] = true;
+                return _accept.call(this, date);
+            }
+            return true;
+        };
+    }
+    for (var i = 0; i < _rdate.length; i++) {
+        var zonedDate = new datewithzone_DateWithZone(_rdate[i], tzid).rezonedDate();
+        if (!iterResult.accept(new Date(zonedDate.getTime())))
+            break;
+    }
+    _rrule.forEach(function (rrule) {
+        iter(iterResult, rrule.options);
+    });
+    var res = iterResult._result;
+    src_dateutil.sort(res);
+    switch (iterResult.method) {
+        case 'all':
+        case 'between':
+            return res;
+        case 'before':
+            return ((res.length && res[res.length - 1]) || null);
+        case 'after':
+        default:
+            return ((res.length && res[0]) || null);
+    }
+}
+
+// CONCATENATED MODULE: ./src/rruleset.ts
+var rruleset_extends = (undefined && undefined.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    }
+    return function (d, b) {
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+
+
+
+
+var rruleset_RRuleSet = /** @class */ (function (_super) {
+    rruleset_extends(RRuleSet, _super);
+    /**
+     *
+     * @param {Boolean?} noCache
+     *  The same stratagy as RRule on cache, default to false
+     * @constructor
+     */
+    function RRuleSet(noCache) {
+        if (noCache === void 0) { noCache = false; }
+        var _this = _super.call(this, {}, noCache) || this;
+        _this._rrule = [];
+        _this._rdate = [];
+        _this._exrule = [];
+        _this._exdate = [];
+        return _this;
+    }
+    RRuleSet.prototype.tzid = function (tzid) {
+        if (tzid !== undefined) {
+            this._tzid = tzid;
+        }
+        if (this._tzid !== undefined) {
+            return this._tzid;
+        }
+        for (var i = 0; i < this._rrule.length; i++) {
+            var tzid_1 = this._rrule[i].origOptions.tzid;
+            if (tzid_1) {
+                return tzid_1;
+            }
+        }
+        return undefined;
+    };
+    RRuleSet.prototype._iter = function (iterResult) {
+        return iterSet(iterResult, this._rrule, this._exrule, this._rdate, this._exdate, this.tzid());
+    };
+    /**
+     * Adds an RRule to the set
+     *
+     * @param {RRule}
+     */
+    RRuleSet.prototype.rrule = function (rrule) {
+        _addRule(rrule, this._rrule);
+    };
+    /**
+     * Adds an EXRULE to the set
+     *
+     * @param {RRule}
+     */
+    RRuleSet.prototype.exrule = function (rrule) {
+        _addRule(rrule, this._exrule);
+    };
+    /**
+     * Adds an RDate to the set
+     *
+     * @param {Date}
+     */
+    RRuleSet.prototype.rdate = function (date) {
+        _addDate(date, this._rdate);
+    };
+    /**
+     * Adds an EXDATE to the set
+     *
+     * @param {Date}
+     */
+    RRuleSet.prototype.exdate = function (date) {
+        _addDate(date, this._exdate);
+    };
+    RRuleSet.prototype.valueOf = function () {
+        var result = [];
+        this._rrule.forEach(function (rrule) {
+            result = result.concat(rrule.toString().split('\n'));
+        });
+        this._exrule.forEach(function (exrule) {
+            result = result.concat(exrule.toString().split('\n')
+                .map(function (line) { return line.replace(/^RRULE:/, 'EXRULE:'); })
+                .filter(function (line) { return !/^DTSTART/.test(line); }));
+        });
+        if (this._rdate.length) {
+            result.push(rdatesToString('RDATE', this._rdate, this.tzid()));
+        }
+        if (this._exdate.length) {
+            result.push(rdatesToString('EXDATE', this._exdate, this.tzid()));
+        }
+        return result;
+    };
+    /**
+     * to generate recurrence field such as:
+     *   DTSTART:19970902T010000Z
+     *   RRULE:FREQ=YEARLY;COUNT=2;BYDAY=TU
+     *   RRULE:FREQ=YEARLY;COUNT=1;BYDAY=TH
+     */
+    RRuleSet.prototype.toString = function () {
+        return this.valueOf().join('\n');
+    };
+    /**
+     * Create a new RRuleSet Object completely base on current instance
+     */
+    RRuleSet.prototype.clone = function () {
+        var rrs = new RRuleSet(!!this._cache);
+        this._rrule.forEach(function (rule) { return rrs.rrule(rule.clone()); });
+        this._exrule.forEach(function (rule) { return rrs.exrule(rule.clone()); });
+        this._rdate.forEach(function (date) { return rrs.rdate(new Date(date.getTime())); });
+        this._exdate.forEach(function (date) { return rrs.exdate(new Date(date.getTime())); });
+        return rrs;
+    };
+    return RRuleSet;
+}(src_rrule));
+/* harmony default export */ var rruleset = (rruleset_RRuleSet);
+function _addRule(rrule, collection) {
+    if (!(rrule instanceof src_rrule)) {
+        throw new TypeError(String(rrule) + ' is not RRule instance');
+    }
+    if (!Object(helpers["c" /* includes */])(collection.map(String), String(rrule))) {
+        collection.push(rrule);
+    }
+}
+function _addDate(date, collection) {
+    if (!(date instanceof Date)) {
+        throw new TypeError(String(date) + ' is not Date instance');
+    }
+    if (!Object(helpers["c" /* includes */])(collection.map(Number), Number(date))) {
+        collection.push(date);
+        src_dateutil.sort(collection);
+    }
+}
+function rdatesToString(param, rdates, tzid) {
+    var isUTC = !tzid || tzid.toUpperCase() === 'UTC';
+    var header = isUTC ? param + ":" : param + ";TZID=" + tzid + ":";
+    var dateString = rdates
+        .map(function (rdate) { return src_dateutil.timeToUntilString(rdate.valueOf(), isUTC); })
+        .join(',');
+    return "" + header + dateString;
+}
+
+// CONCATENATED MODULE: ./src/rrulestr.ts
+var rrulestr_assign = (undefined && undefined.__assign) || function () {
+    rrulestr_assign = Object.assign || function(t) {
+        for (var s, i = 1, n = arguments.length; i < n; i++) {
+            s = arguments[i];
+            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
+                t[p] = s[p];
+        }
+        return t;
+    };
+    return rrulestr_assign.apply(this, arguments);
+};
+
+
+
+
+
+/**
+ * RRuleStr
+ *  To parse a set of rrule strings
+ */
+var rrulestr_DEFAULT_OPTIONS = {
+    dtstart: null,
+    cache: false,
+    unfold: false,
+    forceset: false,
+    compatible: false,
+    tzid: null
+};
+function parseInput(s, options) {
+    var rrulevals = [];
+    var rdatevals = [];
+    var exrulevals = [];
+    var exdatevals = [];
+    var _a = parseDtstart(s), dtstart = _a.dtstart, tzid = _a.tzid;
+    var lines = splitIntoLines(s, options.unfold);
+    lines.forEach(function (line) {
+        if (!line)
+            return;
+        var _a = breakDownLine(line), name = _a.name, parms = _a.parms, value = _a.value;
+        switch (name.toUpperCase()) {
+            case 'RRULE':
+                if (parms.length) {
+                    throw new Error("unsupported RRULE parm: " + parms.join(','));
+                }
+                rrulevals.push(parseString(line));
+                break;
+            case 'RDATE':
+                var _b = /RDATE(?:;TZID=([^:=]+))?/i.exec(line), _ = _b[0], rdateTzid = _b[1];
+                if (rdateTzid && !tzid) {
+                    tzid = rdateTzid;
+                }
+                rdatevals = rdatevals.concat(parseRDate(value, parms));
+                break;
+            case 'EXRULE':
+                if (parms.length) {
+                    throw new Error("unsupported EXRULE parm: " + parms.join(','));
+                }
+                exrulevals.push(parseString(value));
+                break;
+            case 'EXDATE':
+                exdatevals = exdatevals.concat(parseRDate(value, parms));
+                break;
+            case 'DTSTART':
+                break;
+            default:
+                throw new Error('unsupported property: ' + name);
+        }
+    });
+    return {
+        dtstart: dtstart,
+        tzid: tzid,
+        rrulevals: rrulevals,
+        rdatevals: rdatevals,
+        exrulevals: exrulevals,
+        exdatevals: exdatevals
+    };
+}
+function buildRule(s, options) {
+    var _a = parseInput(s, options), rrulevals = _a.rrulevals, rdatevals = _a.rdatevals, exrulevals = _a.exrulevals, exdatevals = _a.exdatevals, dtstart = _a.dtstart, tzid = _a.tzid;
+    var noCache = options.cache === false;
+    if (options.compatible) {
+        options.forceset = true;
+        options.unfold = true;
+    }
+    if (options.forceset ||
+        rrulevals.length > 1 ||
+        rdatevals.length ||
+        exrulevals.length ||
+        exdatevals.length) {
+        var rset_1 = new rruleset(noCache);
+        rset_1.tzid(tzid || undefined);
+        rrulevals.forEach(function (val) {
+            rset_1.rrule(new src_rrule(groomRruleOptions(val, dtstart, tzid), noCache));
+        });
+        rdatevals.forEach(function (date) {
+            rset_1.rdate(date);
+        });
+        exrulevals.forEach(function (val) {
+            rset_1.exrule(new src_rrule(groomRruleOptions(val, dtstart, tzid), noCache));
+        });
+        exdatevals.forEach(function (date) {
+            rset_1.exdate(date);
+        });
+        if (options.compatible && options.dtstart)
+            rset_1.rdate(dtstart);
+        return rset_1;
+    }
+    var val = rrulevals[0];
+    return new src_rrule(groomRruleOptions(val, val.dtstart || options.dtstart || dtstart, val.tzid || options.tzid || tzid), noCache);
+}
+function rrulestr(s, options) {
+    if (options === void 0) { options = {}; }
+    return buildRule(s, rrulestr_initializeOptions(options));
+}
+function groomRruleOptions(val, dtstart, tzid) {
+    return rrulestr_assign({}, val, { dtstart: dtstart,
+        tzid: tzid });
+}
+function rrulestr_initializeOptions(options) {
+    var invalid = [];
+    var keys = Object.keys(options);
+    var defaultKeys = Object.keys(rrulestr_DEFAULT_OPTIONS);
+    keys.forEach(function (key) {
+        if (!Object(helpers["c" /* includes */])(defaultKeys, key))
+            invalid.push(key);
+    });
+    if (invalid.length) {
+        throw new Error('Invalid options: ' + invalid.join(', '));
+    }
+    var initializedOptions = rrulestr_assign({}, options);
+    // Merge in default options
+    defaultKeys.forEach(function (key) {
+        if (!Object(helpers["c" /* includes */])(keys, key))
+            initializedOptions[key] = rrulestr_DEFAULT_OPTIONS[key];
+    });
+    return initializedOptions;
+}
+function extractName(line) {
+    if (line.indexOf(':') === -1) {
+        return {
+            name: 'RRULE',
+            value: line
+        };
+    }
+    var _a = Object(helpers["l" /* split */])(line, ':', 1), name = _a[0], value = _a[1];
+    return {
+        name: name,
+        value: value
+    };
+}
+function breakDownLine(line) {
+    var _a = extractName(line), name = _a.name, value = _a.value;
+    var parms = name.split(';');
+    if (!parms)
+        throw new Error('empty property name');
+    return {
+        name: parms[0].toUpperCase(),
+        parms: parms.slice(1),
+        value: value
+    };
+}
+function splitIntoLines(s, unfold) {
+    if (unfold === void 0) { unfold = false; }
+    s = s && s.trim();
+    if (!s)
+        throw new Error('Invalid empty string');
+    // More info about 'unfold' option
+    // Go head to http://www.ietf.org/rfc/rfc2445.txt
+    if (!unfold) {
+        return s.split(/\s/);
+    }
+    var lines = s.split('\n');
+    var i = 0;
+    while (i < lines.length) {
+        // TODO
+        var line = (lines[i] = lines[i].replace(/\s+$/g, ''));
+        if (!line) {
+            lines.splice(i, 1);
+        }
+        else if (i > 0 && line[0] === ' ') {
+            lines[i - 1] += line.slice(1);
+            lines.splice(i, 1);
+        }
+        else {
+            i += 1;
+        }
+    }
+    return lines;
+}
+function validateDateParm(parms) {
+    parms.forEach(function (parm) {
+        if (!/(VALUE=DATE(-TIME)?)|(TZID=)/.test(parm)) {
+            throw new Error('unsupported RDATE/EXDATE parm: ' + parm);
+        }
+    });
+}
+function parseRDate(rdateval, parms) {
+    validateDateParm(parms);
+    return rdateval
+        .split(',')
+        .map(function (datestr) { return src_dateutil.untilStringToDate(datestr); });
+}
+
+// CONCATENATED MODULE: ./src/index.ts
+/* concated harmony reexport */__webpack_require__.d(__webpack_exports__, "Frequency", function() { return Frequency; });
+/* concated harmony reexport */__webpack_require__.d(__webpack_exports__, "Weekday", function() { return Weekday; });
+/* concated harmony reexport */__webpack_require__.d(__webpack_exports__, "RRule", function() { return src_rrule; });
+/* concated harmony reexport */__webpack_require__.d(__webpack_exports__, "RRuleSet", function() { return rruleset; });
+/* concated harmony reexport */__webpack_require__.d(__webpack_exports__, "rrulestr", function() { return rrulestr; });
+/*!
+ * rrule.js - Library for working with recurrence rules for calendar dates.
+ * https://github.com/jakubroztocil/rrule
+ *
+ * Copyright 2010, Jakub Roztocil and Lars Schoning
+ * Licenced under the BSD licence.
+ * https://github.com/jakubroztocil/rrule/blob/master/LICENCE
+ *
+ * Based on:
+ * python-dateutil - Extensions to the standard Python datetime module.
+ * Copyright (c) 2003-2011 - Gustavo Niemeyer <gustavo@niemeyer.net>
+ * Copyright (c) 2012 - Tomi Pieviläinen <tomi.pievilainen@iki.fi>
+ * https://github.com/jakubroztocil/rrule/blob/master/LICENCE
+ *
+ */
+
+
+
+
+
+// =============================================================================
+// Export
+// =============================================================================
+
+/* harmony default export */ var src = __webpack_exports__["default"] = (src_rrule);
+
+
+/***/ }),
+/* 2 */
+/***/ (function(module, exports) {
+
+module.exports = __WEBPACK_EXTERNAL_MODULE__2__;
+
+/***/ }),
+/* 3 */
+/***/ (function(module, __webpack_exports__, __webpack_require__) {
+
+"use strict";
+__webpack_require__.r(__webpack_exports__);
+
+// CONCATENATED MODULE: ./src/nlp/i18n.ts
+// =============================================================================
+// i18n
+// =============================================================================
+var ENGLISH = {
+    dayNames: [
+        'Sunday', 'Monday', 'Tuesday', 'Wednesday',
+        'Thursday', 'Friday', 'Saturday'
+    ],
+    monthNames: [
+        'January', 'February', 'March', 'April', 'May',
+        'June', 'July', 'August', 'September', 'October',
+        'November', 'December'
+    ],
+    tokens: {
+        'SKIP': /^[ \r\n\t]+|^\.$/,
+        'number': /^[1-9][0-9]*/,
+        'numberAsText': /^(one|two|three)/i,
+        'every': /^every/i,
+        'day(s)': /^days?/i,
+        'weekday(s)': /^weekdays?/i,
+        'week(s)': /^weeks?/i,
+        'hour(s)': /^hours?/i,
+        'minute(s)': /^minutes?/i,
+        'month(s)': /^months?/i,
+        'year(s)': /^years?/i,
+        'on': /^(on|in)/i,
+        'at': /^(at)/i,
+        'the': /^the/i,
+        'first': /^first/i,
+        'second': /^second/i,
+        'third': /^third/i,
+        'nth': /^([1-9][0-9]*)(\.|th|nd|rd|st)/i,
+        'last': /^last/i,
+        'for': /^for/i,
+        'time(s)': /^times?/i,
+        'until': /^(un)?til/i,
+        'monday': /^mo(n(day)?)?/i,
+        'tuesday': /^tu(e(s(day)?)?)?/i,
+        'wednesday': /^we(d(n(esday)?)?)?/i,
+        'thursday': /^th(u(r(sday)?)?)?/i,
+        'friday': /^fr(i(day)?)?/i,
+        'saturday': /^sa(t(urday)?)?/i,
+        'sunday': /^su(n(day)?)?/i,
+        'january': /^jan(uary)?/i,
+        'february': /^feb(ruary)?/i,
+        'march': /^mar(ch)?/i,
+        'april': /^apr(il)?/i,
+        'may': /^may/i,
+        'june': /^june?/i,
+        'july': /^july?/i,
+        'august': /^aug(ust)?/i,
+        'september': /^sep(t(ember)?)?/i,
+        'october': /^oct(ober)?/i,
+        'november': /^nov(ember)?/i,
+        'december': /^dec(ember)?/i,
+        'comma': /^(,\s*|(and|or)\s*)+/i
+    }
+};
+/* harmony default export */ var i18n = (ENGLISH);
+
+// EXTERNAL MODULE: ./src/index.ts + 22 modules
+var src = __webpack_require__(1);
+
+// EXTERNAL MODULE: ./src/helpers.ts
+var helpers = __webpack_require__(0);
+
+// CONCATENATED MODULE: ./src/nlp/totext.ts
+
+
+
+// =============================================================================
+// Helper functions
+// =============================================================================
+/**
+ * Return true if a value is in an array
+ */
+var contains = function (arr, val) {
+    return arr.indexOf(val) !== -1;
+};
+var defaultGetText = function (id) { return id.toString(); };
+/**
+ *
+ * @param {RRule} rrule
+ * Optional:
+ * @param {Function} gettext function
+ * @param {Object} language definition
+ * @constructor
+ */
+var totext_ToText = /** @class */ (function () {
+    function ToText(rrule, gettext, language) {
+        if (gettext === void 0) { gettext = defaultGetText; }
+        if (language === void 0) { language = i18n; }
+        this.text = [];
+        this.language = language || i18n;
+        this.gettext = gettext;
+        this.rrule = rrule;
+        this.options = rrule.options;
+        this.origOptions = rrule.origOptions;
+        if (this.origOptions.bymonthday) {
+            var bymonthday = [].concat(this.options.bymonthday);
+            var bynmonthday = [].concat(this.options.bynmonthday);
+            bymonthday.sort(function (a, b) { return a - b; });
+            bynmonthday.sort(function (a, b) { return b - a; });
+            // 1, 2, 3, .., -5, -4, -3, ..
+            this.bymonthday = bymonthday.concat(bynmonthday);
+            if (!this.bymonthday.length)
+                this.bymonthday = null;
+        }
+        if (Object(helpers["f" /* isPresent */])(this.origOptions.byweekday)) {
+            var byweekday = !Object(helpers["d" /* isArray */])(this.origOptions.byweekday)
+                ? [this.origOptions.byweekday]
+                : this.origOptions.byweekday;
+            var days = String(byweekday);
+            this.byweekday = {
+                allWeeks: byweekday.filter(function (weekday) {
+                    return !weekday.n;
+                }),
+                someWeeks: byweekday.filter(function (weekday) {
+                    return Boolean(weekday.n);
+                }),
+                isWeekdays: days.indexOf('MO') !== -1 &&
+                    days.indexOf('TU') !== -1 &&
+                    days.indexOf('WE') !== -1 &&
+                    days.indexOf('TH') !== -1 &&
+                    days.indexOf('FR') !== -1 &&
+                    days.indexOf('SA') === -1 &&
+                    days.indexOf('SU') === -1,
+                isEveryDay: days.indexOf('MO') !== -1 &&
+                    days.indexOf('TU') !== -1 &&
+                    days.indexOf('WE') !== -1 &&
+                    days.indexOf('TH') !== -1 &&
+                    days.indexOf('FR') !== -1 &&
+                    days.indexOf('SA') !== -1 &&
+                    days.indexOf('SU') !== -1
+            };
+            var sortWeekDays = function (a, b) {
+                return a.weekday - b.weekday;
+            };
+            this.byweekday.allWeeks.sort(sortWeekDays);
+            this.byweekday.someWeeks.sort(sortWeekDays);
+            if (!this.byweekday.allWeeks.length)
+                this.byweekday.allWeeks = null;
+            if (!this.byweekday.someWeeks.length)
+                this.byweekday.someWeeks = null;
+        }
+        else {
+            this.byweekday = null;
+        }
+    }
+    /**
+     * Test whether the rrule can be fully converted to text.
+     * @param {RRule} rrule
+     * @return {Boolean}
+     */
+    ToText.isFullyConvertible = function (rrule) {
+        var canConvert = true;
+        if (!(rrule.options.freq in ToText.IMPLEMENTED))
+            return false;
+        if (rrule.origOptions.until && rrule.origOptions.count)
+            return false;
+        for (var key in rrule.origOptions) {
+            if (contains(['dtstart', 'wkst', 'freq'], key))
+                return true;
+            if (!contains(ToText.IMPLEMENTED[rrule.options.freq], key))
+                return false;
+        }
+        return canConvert;
+    };
+    ToText.prototype.isFullyConvertible = function () {
+        return ToText.isFullyConvertible(this.rrule);
+    };
+    /**
+     * Perform the conversion. Only some of the frequencies are supported.
+     * If some of the rrule's options aren't supported, they'll
+     * be omitted from the output an "(~ approximate)" will be appended.
+     * @return {*}
+     */
+    ToText.prototype.toString = function () {
+        var gettext = this.gettext;
+        if (!(this.options.freq in ToText.IMPLEMENTED)) {
+            return gettext('RRule error: Unable to fully convert this rrule to text');
+        }
+        this.text = [gettext('every')];
+        // @ts-ignore
+        this[src["default"].FREQUENCIES[this.options.freq]]();
+        if (this.options.until) {
+            this.add(gettext('until'));
+            var until = this.options.until;
+            this.add(this.language.monthNames[until.getUTCMonth()])
+                .add(until.getUTCDate() + ',')
+                .add(until.getUTCFullYear().toString());
+        }
+        else if (this.options.count) {
+            this.add(gettext('for'))
+                .add(this.options.count.toString())
+                .add(this.plural(this.options.count) ? gettext('times') : gettext('time'));
+        }
+        if (!this.isFullyConvertible())
+            this.add(gettext('(~ approximate)'));
+        return this.text.join('');
+    };
+    ToText.prototype.HOURLY = function () {
+        var gettext = this.gettext;
+        if (this.options.interval !== 1)
+            this.add(this.options.interval.toString());
+        this.add(this.plural(this.options.interval) ? gettext('hours') : gettext('hour'));
+    };
+    ToText.prototype.MINUTELY = function () {
+        var gettext = this.gettext;
+        if (this.options.interval !== 1)
+            this.add(this.options.interval.toString());
+        this.add(this.plural(this.options.interval)
+            ? gettext('minutes')
+            : gettext('minutes'));
+    };
+    ToText.prototype.DAILY = function () {
+        var gettext = this.gettext;
+        if (this.options.interval !== 1)
+            this.add(this.options.interval.toString());
+        if (this.byweekday && this.byweekday.isWeekdays) {
+            this.add(this.plural(this.options.interval)
+                ? gettext('weekdays')
+                : gettext('weekday'));
+        }
+        else {
+            this.add(this.plural(this.options.interval) ? gettext('days') : gettext('day'));
+        }
+        if (this.origOptions.bymonth) {
+            this.add(gettext('in'));
+            this._bymonth();
+        }
+        if (this.bymonthday) {
+            this._bymonthday();
+        }
+        else if (this.byweekday) {
+            this._byweekday();
+        }
+        else if (this.origOptions.byhour) {
+            this._byhour();
+        }
+    };
+    ToText.prototype.WEEKLY = function () {
+        var gettext = this.gettext;
+        if (this.options.interval !== 1) {
+            this.add(this.options.interval.toString()).add(this.plural(this.options.interval) ? gettext('weeks') : gettext('week'));
+        }
+        if (this.byweekday && this.byweekday.isWeekdays) {
+            if (this.options.interval === 1) {
+                this.add(this.plural(this.options.interval)
+                    ? gettext('weekdays')
+                    : gettext('weekday'));
+            }
+            else {
+                this.add(gettext('on')).add(gettext('weekdays'));
+            }
+        }
+        else if (this.byweekday && this.byweekday.isEveryDay) {
+            this.add(this.plural(this.options.interval) ? gettext('days') : gettext('day'));
+        }
+        else {
+            if (this.options.interval === 1)
+                this.add(gettext('week'));
+            if (this.origOptions.bymonth) {
+                this.add(gettext('in'));
+                this._bymonth();
+            }
+            if (this.bymonthday) {
+                this._bymonthday();
+            }
+            else if (this.byweekday) {
+                this._byweekday();
+            }
+        }
+    };
+    ToText.prototype.MONTHLY = function () {
+        var gettext = this.gettext;
+        if (this.origOptions.bymonth) {
+            if (this.options.interval !== 1) {
+                this.add(this.options.interval.toString()).add(gettext('months'));
+                if (this.plural(this.options.interval))
+                    this.add(gettext('in'));
+            }
+            else {
+                // this.add(gettext('MONTH'))
+            }
+            this._bymonth();
+        }
+        else {
+            if (this.options.interval !== 1)
+                this.add(this.options.interval.toString());
+            this.add(this.plural(this.options.interval)
+                ? gettext('months')
+                : gettext('month'));
+        }
+        if (this.bymonthday) {
+            this._bymonthday();
+        }
+        else if (this.byweekday && this.byweekday.isWeekdays) {
+            this.add(gettext('on')).add(gettext('weekdays'));
+        }
+        else if (this.byweekday) {
+            this._byweekday();
+        }
+    };
+    ToText.prototype.YEARLY = function () {
+        var gettext = this.gettext;
+        if (this.origOptions.bymonth) {
+            if (this.options.interval !== 1) {
+                this.add(this.options.interval.toString());
+                this.add(gettext('years'));
+            }
+            else {
+                // this.add(gettext('YEAR'))
+            }
+            this._bymonth();
+        }
+        else {
+            if (this.options.interval !== 1)
+                this.add(this.options.interval.toString());
+            this.add(this.plural(this.options.interval) ? gettext('years') : gettext('year'));
+        }
+        if (this.bymonthday) {
+            this._bymonthday();
+        }
+        else if (this.byweekday) {
+            this._byweekday();
+        }
+        if (this.options.byyearday) {
+            this.add(gettext('on the'))
+                .add(this.list(this.options.byyearday, this.nth, gettext('and')))
+                .add(gettext('day'));
+        }
+        if (this.options.byweekno) {
+            this.add(gettext('in'))
+                .add(this.plural(this.options.byweekno.length)
+                ? gettext('weeks')
+                : gettext('week'))
+                .add(this.list(this.options.byweekno, undefined, gettext('and')));
+        }
+    };
+    ToText.prototype._bymonthday = function () {
+        var gettext = this.gettext;
+        if (this.byweekday && this.byweekday.allWeeks) {
+            this.add(gettext('on'))
+                .add(this.list(this.byweekday.allWeeks, this.weekdaytext, gettext('or')))
+                .add(gettext('the'))
+                .add(this.list(this.bymonthday, this.nth, gettext('or')));
+        }
+        else {
+            this.add(gettext('on the')).add(this.list(this.bymonthday, this.nth, gettext('and')));
+        }
+        // this.add(gettext('DAY'))
+    };
+    ToText.prototype._byweekday = function () {
+        var gettext = this.gettext;
+        if (this.byweekday.allWeeks && !this.byweekday.isWeekdays) {
+            this.add(gettext('on')).add(this.list(this.byweekday.allWeeks, this.weekdaytext));
+        }
+        if (this.byweekday.someWeeks) {
+            if (this.byweekday.allWeeks)
+                this.add(gettext('and'));
+            this.add(gettext('on the')).add(this.list(this.byweekday.someWeeks, this.weekdaytext, gettext('and')));
+        }
+    };
+    ToText.prototype._byhour = function () {
+        var gettext = this.gettext;
+        this.add(gettext('at')).add(this.list(this.origOptions.byhour, undefined, gettext('and')));
+    };
+    ToText.prototype._bymonth = function () {
+        this.add(this.list(this.options.bymonth, this.monthtext, this.gettext('and')));
+    };
+    ToText.prototype.nth = function (n) {
+        n = parseInt(n.toString(), 10);
+        var nth;
+        var npos;
+        var gettext = this.gettext;
+        if (n === -1)
+            return gettext('last');
+        npos = Math.abs(n);
+        switch (npos) {
+            case 1:
+            case 21:
+            case 31:
+                nth = npos + gettext('st');
+                break;
+            case 2:
+            case 22:
+                nth = npos + gettext('nd');
+                break;
+            case 3:
+            case 23:
+                nth = npos + gettext('rd');
+                break;
+            default:
+                nth = npos + gettext('th');
+        }
+        return n < 0 ? nth + ' ' + gettext('last') : nth;
+    };
+    ToText.prototype.monthtext = function (m) {
+        return this.language.monthNames[m - 1];
+    };
+    ToText.prototype.weekdaytext = function (wday) {
+        var weekday = Object(helpers["e" /* isNumber */])(wday) ? (wday + 1) % 7 : wday.getJsWeekday();
+        return ((wday.n ? this.nth(wday.n) + ' ' : '') + this.language.dayNames[weekday]);
+    };
+    ToText.prototype.plural = function (n) {
+        return n % 100 !== 1;
+    };
+    ToText.prototype.add = function (s) {
+        this.text.push(' ');
+        this.text.push(s);
+        return this;
+    };
+    ToText.prototype.list = function (arr, callback, finalDelim, delim) {
+        if (delim === void 0) { delim = ','; }
+        if (!Object(helpers["d" /* isArray */])(arr)) {
+            arr = [arr];
+        }
+        var delimJoin = function (array, delimiter, finalDelimiter) {
+            var list = '';
+            for (var i = 0; i < array.length; i++) {
+                if (i !== 0) {
+                    if (i === array.length - 1) {
+                        list += ' ' + finalDelimiter + ' ';
+                    }
+                    else {
+                        list += delimiter + ' ';
+                    }
+                }
+                list += array[i];
+            }
+            return list;
+        };
+        callback =
+            callback ||
+                function (o) {
+                    return o.toString();
+                };
+        var self = this;
+        var realCallback = function (arg) {
+            return callback && callback.call(self, arg);
+        };
+        if (finalDelim) {
+            return delimJoin(arr.map(realCallback), delim, finalDelim);
+        }
+        else {
+            return arr.map(realCallback).join(delim + ' ');
+        }
+    };
+    return ToText;
+}());
+/* harmony default export */ var totext = (totext_ToText);
+
+// CONCATENATED MODULE: ./src/nlp/parsetext.ts
+
+
+// =============================================================================
+// Parser
+// =============================================================================
+var Parser = /** @class */ (function () {
+    function Parser(rules) {
+        this.done = true;
+        this.rules = rules;
+    }
+    Parser.prototype.start = function (text) {
+        this.text = text;
+        this.done = false;
+        return this.nextSymbol();
+    };
+    Parser.prototype.isDone = function () {
+        return this.done && this.symbol === null;
+    };
+    Parser.prototype.nextSymbol = function () {
+        var best;
+        var bestSymbol;
+        var p = this;
+        this.symbol = null;
+        this.value = null;
+        do {
+            if (this.done)
+                return false;
+            var rule = void 0;
+            best = null;
+            for (var name_1 in this.rules) {
+                rule = this.rules[name_1];
+                var match = rule.exec(p.text);
+                if (match) {
+                    if (best === null || match[0].length > best[0].length) {
+                        best = match;
+                        bestSymbol = name_1;
+                    }
+                }
+            }
+            if (best != null) {
+                this.text = this.text.substr(best[0].length);
+                if (this.text === '')
+                    this.done = true;
+            }
+            if (best == null) {
+                this.done = true;
+                this.symbol = null;
+                this.value = null;
+                return;
+            }
+            // @ts-ignore
+        } while (bestSymbol === 'SKIP');
+        // @ts-ignore
+        this.symbol = bestSymbol;
+        this.value = best;
+        return true;
+    };
+    Parser.prototype.accept = function (name) {
+        if (this.symbol === name) {
+            if (this.value) {
+                var v = this.value;
+                this.nextSymbol();
+                return v;
+            }
+            this.nextSymbol();
+            return true;
+        }
+        return false;
+    };
+    Parser.prototype.acceptNumber = function () {
+        return this.accept('number');
+    };
+    Parser.prototype.expect = function (name) {
+        if (this.accept(name))
+            return true;
+        throw new Error('expected ' + name + ' but found ' + this.symbol);
+    };
+    return Parser;
+}());
+function parseText(text, language) {
+    if (language === void 0) { language = i18n; }
+    var options = {};
+    var ttr = new Parser(language.tokens);
+    if (!ttr.start(text))
+        return null;
+    S();
+    return options;
+    function S() {
+        // every [n]
+        ttr.expect('every');
+        var n = ttr.acceptNumber();
+        if (n)
+            options.interval = parseInt(n[0], 10);
+        if (ttr.isDone())
+            throw new Error('Unexpected end');
+        switch (ttr.symbol) {
+            case 'day(s)':
+                options.freq = src["default"].DAILY;
+                if (ttr.nextSymbol()) {
+                    AT();
+                    F();
+                }
+                break;
+            // FIXME Note: every 2 weekdays != every two weeks on weekdays.
+            // DAILY on weekdays is not a valid rule
+            case 'weekday(s)':
+                options.freq = src["default"].WEEKLY;
+                options.byweekday = [
+                    src["default"].MO,
+                    src["default"].TU,
+                    src["default"].WE,
+                    src["default"].TH,
+                    src["default"].FR
+                ];
+                ttr.nextSymbol();
+                F();
+                break;
+            case 'week(s)':
+                options.freq = src["default"].WEEKLY;
+                if (ttr.nextSymbol()) {
+                    ON();
+                    F();
+                }
+                break;
+            case 'hour(s)':
+                options.freq = src["default"].HOURLY;
+                if (ttr.nextSymbol()) {
+                    ON();
+                    F();
+                }
+                break;
+            case 'minute(s)':
+                options.freq = src["default"].MINUTELY;
+                if (ttr.nextSymbol()) {
+                    ON();
+                    F();
+                }
+                break;
+            case 'month(s)':
+                options.freq = src["default"].MONTHLY;
+                if (ttr.nextSymbol()) {
+                    ON();
+                    F();
+                }
+                break;
+            case 'year(s)':
+                options.freq = src["default"].YEARLY;
+                if (ttr.nextSymbol()) {
+                    ON();
+                    F();
+                }
+                break;
+            case 'monday':
+            case 'tuesday':
+            case 'wednesday':
+            case 'thursday':
+            case 'friday':
+            case 'saturday':
+            case 'sunday':
+                options.freq = src["default"].WEEKLY;
+                var key = ttr.symbol.substr(0, 2).toUpperCase();
+                options.byweekday = [src["default"][key]];
+                if (!ttr.nextSymbol())
+                    return;
+                // TODO check for duplicates
+                while (ttr.accept('comma')) {
+                    if (ttr.isDone())
+                        throw new Error('Unexpected end');
+                    var wkd = decodeWKD();
+                    if (!wkd) {
+                        throw new Error('Unexpected symbol ' + ttr.symbol + ', expected weekday');
+                    }
+                    // @ts-ignore
+                    options.byweekday.push(src["default"][wkd]);
+                    ttr.nextSymbol();
+                }
+                MDAYs();
+                F();
+                break;
+            case 'january':
+            case 'february':
+            case 'march':
+            case 'april':
+            case 'may':
+            case 'june':
+            case 'july':
+            case 'august':
+            case 'september':
+            case 'october':
+            case 'november':
+            case 'december':
+                options.freq = src["default"].YEARLY;
+                options.bymonth = [decodeM()];
+                if (!ttr.nextSymbol())
+                    return;
+                // TODO check for duplicates
+                while (ttr.accept('comma')) {
+                    if (ttr.isDone())
+                        throw new Error('Unexpected end');
+                    var m = decodeM();
+                    if (!m) {
+                        throw new Error('Unexpected symbol ' + ttr.symbol + ', expected month');
+                    }
+                    options.bymonth.push(m);
+                    ttr.nextSymbol();
+                }
+                ON();
+                F();
+                break;
+            default:
+                throw new Error('Unknown symbol');
+        }
+    }
+    function ON() {
+        var on = ttr.accept('on');
+        var the = ttr.accept('the');
+        if (!(on || the))
+            return;
+        do {
+            var nth = decodeNTH();
+            var wkd = decodeWKD();
+            var m = decodeM();
+            // nth <weekday> | <weekday>
+            if (nth) {
+                // ttr.nextSymbol()
+                if (wkd) {
+                    ttr.nextSymbol();
+                    if (!options.byweekday)
+                        options.byweekday = [];
+                    // @ts-ignore
+                    options.byweekday.push(src["default"][wkd].nth(nth));
+                }
+                else {
+                    if (!options.bymonthday)
+                        options.bymonthday = [];
+                    // @ts-ignore
+                    options.bymonthday.push(nth);
+                    ttr.accept('day(s)');
+                }
+                // <weekday>
+            }
+            else if (wkd) {
+                ttr.nextSymbol();
+                if (!options.byweekday)
+                    options.byweekday = [];
+                // @ts-ignore
+                options.byweekday.push(src["default"][wkd]);
+            }
+            else if (ttr.symbol === 'weekday(s)') {
+                ttr.nextSymbol();
+                if (!options.byweekday) {
+                    options.byweekday = [
+                        src["default"].MO,
+                        src["default"].TU,
+                        src["default"].WE,
+                        src["default"].TH,
+                        src["default"].FR
+                    ];
+                }
+            }
+            else if (ttr.symbol === 'week(s)') {
+                ttr.nextSymbol();
+                var n = ttr.acceptNumber();
+                if (!n) {
+                    throw new Error('Unexpected symbol ' + ttr.symbol + ', expected week number');
+                }
+                options.byweekno = [parseInt(n[0], 10)];
+                while (ttr.accept('comma')) {
+                    n = ttr.acceptNumber();
+                    if (!n) {
+                        throw new Error('Unexpected symbol ' + ttr.symbol + '; expected monthday');
+                    }
+                    options.byweekno.push(parseInt(n[0], 10));
+                }
+            }
+            else if (m) {
+                ttr.nextSymbol();
+                if (!options.bymonth)
+                    options.bymonth = [];
+                // @ts-ignore
+                options.bymonth.push(m);
+            }
+            else {
+                return;
+            }
+        } while (ttr.accept('comma') || ttr.accept('the') || ttr.accept('on'));
+    }
+    function AT() {
+        var at = ttr.accept('at');
+        if (!at)
+            return;
+        do {
+            var n = ttr.acceptNumber();
+            if (!n) {
+                throw new Error('Unexpected symbol ' + ttr.symbol + ', expected hour');
+            }
+            options.byhour = [parseInt(n[0], 10)];
+            while (ttr.accept('comma')) {
+                n = ttr.acceptNumber();
+                if (!n) {
+                    throw new Error('Unexpected symbol ' + ttr.symbol + '; expected hour');
+                }
+                options.byhour.push(parseInt(n[0], 10));
+            }
+        } while (ttr.accept('comma') || ttr.accept('at'));
+    }
+    function decodeM() {
+        switch (ttr.symbol) {
+            case 'january':
+                return 1;
+            case 'february':
+                return 2;
+            case 'march':
+                return 3;
+            case 'april':
+                return 4;
+            case 'may':
+                return 5;
+            case 'june':
+                return 6;
+            case 'july':
+                return 7;
+            case 'august':
+                return 8;
+            case 'september':
+                return 9;
+            case 'october':
+                return 10;
+            case 'november':
+                return 11;
+            case 'december':
+                return 12;
+            default:
+                return false;
+        }
+    }
+    function decodeWKD() {
+        switch (ttr.symbol) {
+            case 'monday':
+            case 'tuesday':
+            case 'wednesday':
+            case 'thursday':
+            case 'friday':
+            case 'saturday':
+            case 'sunday':
+                return ttr.symbol.substr(0, 2).toUpperCase();
+            default:
+                return false;
+        }
+    }
+    function decodeNTH() {
+        switch (ttr.symbol) {
+            case 'last':
+                ttr.nextSymbol();
+                return -1;
+            case 'first':
+                ttr.nextSymbol();
+                return 1;
+            case 'second':
+                ttr.nextSymbol();
+                return ttr.accept('last') ? -2 : 2;
+            case 'third':
+                ttr.nextSymbol();
+                return ttr.accept('last') ? -3 : 3;
+            case 'nth':
+                var v = parseInt(ttr.value[1], 10);
+                if (v < -366 || v > 366)
+                    throw new Error('Nth out of range: ' + v);
+                ttr.nextSymbol();
+                return ttr.accept('last') ? -v : v;
+            default:
+                return false;
+        }
+    }
+    function MDAYs() {
+        ttr.accept('on');
+        ttr.accept('the');
+        var nth = decodeNTH();
+        if (!nth)
+            return;
+        options.bymonthday = [nth];
+        ttr.nextSymbol();
+        while (ttr.accept('comma')) {
+            nth = decodeNTH();
+            if (!nth) {
+                throw new Error('Unexpected symbol ' + ttr.symbol + '; expected monthday');
+            }
+            options.bymonthday.push(nth);
+            ttr.nextSymbol();
+        }
+    }
+    function F() {
+        if (ttr.symbol === 'until') {
+            var date = Date.parse(ttr.text);
+            if (!date)
+                throw new Error('Cannot parse until date:' + ttr.text);
+            options.until = new Date(date);
+        }
+        else if (ttr.accept('for')) {
+            options.count = parseInt(ttr.value[0], 10);
+            ttr.expect('number');
+            // ttr.expect('times')
+        }
+    }
+}
+
+// CONCATENATED MODULE: ./src/nlp/index.ts
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromText", function() { return fromText; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "isFullyConvertible", function() { return isFullyConvertible; });
+/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "toText", function() { return toText; });
+/* concated harmony reexport */__webpack_require__.d(__webpack_exports__, "parseText", function() { return parseText; });
+
+
+
+
+/*!
+* rrule.js - Library for working with recurrence rules for calendar dates.
+* https://github.com/jakubroztocil/rrule
+*
+* Copyright 2010, Jakub Roztocil and Lars Schoning
+* Licenced under the BSD licence.
+* https://github.com/jakubroztocil/rrule/blob/master/LICENCE
+*
+*/
+/**
+ *
+ * Implementation of RRule.fromText() and RRule::toText().
+ *
+ *
+ * On the client side, this file needs to be included
+ * when those functions are used.
+ *
+ */
+// =============================================================================
+// fromText
+// =============================================================================
+/**
+ * Will be able to convert some of the below described rules from
+ * text format to a rule object.
+ *
+ *
+ * RULES
+ *
+ * Every ([n])
+ *       day(s)
+ *     | [weekday], ..., (and) [weekday]
+ *     | weekday(s)
+ *     | week(s)
+ *     | month(s)
+ *     | [month], ..., (and) [month]
+ *     | year(s)
+ *
+ *
+ * Plus 0, 1, or multiple of these:
+ *
+ * on [weekday], ..., (or) [weekday] the [monthday], [monthday], ... (or) [monthday]
+ *
+ * on [weekday], ..., (and) [weekday]
+ *
+ * on the [monthday], [monthday], ... (and) [monthday] (day of the month)
+ *
+ * on the [nth-weekday], ..., (and) [nth-weekday] (of the month/year)
+ *
+ *
+ * Plus 0 or 1 of these:
+ *
+ * for [n] time(s)
+ *
+ * until [date]
+ *
+ * Plus (.)
+ *
+ *
+ * Definitely no supported for parsing:
+ *
+ * (for year):
+ *     in week(s) [n], ..., (and) [n]
+ *
+ *     on the [yearday], ..., (and) [n] day of the year
+ *     on day [yearday], ..., (and) [n]
+ *
+ *
+ * NON-TERMINALS
+ *
+ * [n]: 1, 2 ..., one, two, three ..
+ * [month]: January, February, March, April, May, ... December
+ * [weekday]: Monday, ... Sunday
+ * [nth-weekday]: first [weekday], 2nd [weekday], ... last [weekday], ...
+ * [monthday]: first, 1., 2., 1st, 2nd, second, ... 31st, last day, 2nd last day, ..
+ * [date]:
+ *     [month] (0-31(,) ([year])),
+ *     (the) 0-31.(1-12.([year])),
+ *     (the) 0-31/(1-12/([year])),
+ *     [weekday]
+ *
+ * [year]: 0000, 0001, ... 01, 02, ..
+ *
+ * Definitely not supported for parsing:
+ *
+ * [yearday]: first, 1., 2., 1st, 2nd, second, ... 366th, last day, 2nd last day, ..
+ *
+ * @param {String} text
+ * @return {Object, Boolean} the rule, or null.
+ */
+var fromText = function (text, language) {
+    if (language === void 0) { language = i18n; }
+    return new src["default"](parseText(text, language) || undefined);
+};
+var common = [
+    'count',
+    'until',
+    'interval',
+    'byweekday',
+    'bymonthday',
+    'bymonth'
+];
+totext.IMPLEMENTED = [];
+totext.IMPLEMENTED[src["default"].HOURLY] = common;
+totext.IMPLEMENTED[src["default"].MINUTELY] = common;
+totext.IMPLEMENTED[src["default"].DAILY] = ['byhour'].concat(common);
+totext.IMPLEMENTED[src["default"].WEEKLY] = common;
+totext.IMPLEMENTED[src["default"].MONTHLY] = common;
+totext.IMPLEMENTED[src["default"].YEARLY] = ['byweekno', 'byyearday'].concat(common);
+// =============================================================================
+// Export
+// =============================================================================
+var toText = function (rrule, gettext, language) {
+    return new totext(rrule, gettext, language).toString();
+};
+var isFullyConvertible = totext.isFullyConvertible;
+
+
+
+/***/ })
+/******/ ]);
+});
+//# sourceMappingURL=rrule.js.map
\ No newline at end of file