gentelella/vendors/fullcalendar/dist/fullcalendar.js

Gentellela Admin is a free to use Bootstrap admin template

/*!
 * FullCalendar v2.7.1
 * Docs & License: http://fullcalendar.io/
 * (c) 2016 Adam Shaw
 */

(function(factory) {
	if (typeof define === 'function' && define.amd) {
		define([ 'jquery', 'moment' ], factory);
	}
	else if (typeof exports === 'object') { // Node/CommonJS
		module.exports = factory(require('jquery'), require('moment'));
	}
	else {
		factory(jQuery, moment);
	}
})(function($, moment) {

;;

var FC = $.fullCalendar = {
	version: "2.7.1",
	internalApiVersion: 3
};
var fcViews = FC.views = {};


FC.isTouch = 'ontouchstart' in document;


$.fn.fullCalendar = function(options) {
	var args = Array.prototype.slice.call(arguments, 1); // for a possible method call
	var res = this; // what this function will return (this jQuery object by default)

	this.each(function(i, _element) { // loop each DOM element involved
		var element = $(_element);
		var calendar = element.data('fullCalendar'); // get the existing calendar object (if any)
		var singleRes; // the returned value of this single method call

		// a method call
		if (typeof options === 'string') {
			if (calendar && $.isFunction(calendar[options])) {
				singleRes = calendar[options].apply(calendar, args);
				if (!i) {
					res = singleRes; // record the first method call result
				}
				if (options === 'destroy') { // for the destroy method, must remove Calendar object data
					element.removeData('fullCalendar');
				}
			}
		}
		// a new calendar initialization
		else if (!calendar) { // don't initialize twice
			calendar = new Calendar(element, options);
			element.data('fullCalendar', calendar);
			calendar.render();
		}
	});
	
	return res;
};


var complexOptions = [ // names of options that are objects whose properties should be combined
	'header',
	'buttonText',
	'buttonIcons',
	'themeButtonIcons'
];


// Merges an array of option objects into a single object
function mergeOptions(optionObjs) {
	return mergeProps(optionObjs, complexOptions);
}


// Given options specified for the calendar's constructor, massages any legacy options into a non-legacy form.
// Converts View-Option-Hashes into the View-Specific-Options format.
function massageOverrides(input) {
	var overrides = { views: input.views || {} }; // the output. ensure a `views` hash
	var subObj;

	// iterate through all option override properties (except `views`)
	$.each(input, function(name, val) {
		if (name != 'views') {

			// could the value be a legacy View-Option-Hash?
			if (
				$.isPlainObject(val) &&
				!/(time|duration|interval)$/i.test(name) && // exclude duration options. might be given as objects
				$.inArray(name, complexOptions) == -1 // complex options aren't allowed to be View-Option-Hashes
			) {
				subObj = null;

				// iterate through the properties of this possible View-Option-Hash value
				$.each(val, function(subName, subVal) {

					// is the property targeting a view?
					if (/^(month|week|day|default|basic(Week|Day)?|agenda(Week|Day)?)$/.test(subName)) {
						if (!overrides.views[subName]) { // ensure the view-target entry exists
							overrides.views[subName] = {};
						}
						overrides.views[subName][name] = subVal; // record the value in the `views` object
					}
					else { // a non-View-Option-Hash property
						if (!subObj) {
							subObj = {};
						}
						subObj[subName] = subVal; // accumulate these unrelated values for later
					}
				});

				if (subObj) { // non-View-Option-Hash properties? transfer them as-is
					overrides[name] = subObj;
				}
			}
			else {
				overrides[name] = val; // transfer normal options as-is
			}
		}
	});

	return overrides;
}

;;

// exports
FC.intersectRanges = intersectRanges;
FC.applyAll = applyAll;
FC.debounce = debounce;
FC.isInt = isInt;
FC.htmlEscape = htmlEscape;
FC.cssToStr = cssToStr;
FC.proxy = proxy;
FC.capitaliseFirstLetter = capitaliseFirstLetter;


/* FullCalendar-specific DOM Utilities
----------------------------------------------------------------------------------------------------------------------*/


// Given the scrollbar widths of some other container, create borders/margins on rowEls in order to match the left
// and right space that was offset by the scrollbars. A 1-pixel border first, then margin beyond that.
function compensateScroll(rowEls, scrollbarWidths) {
	if (scrollbarWidths.left) {
		rowEls.css({
			'border-left-width': 1,
			'margin-left': scrollbarWidths.left - 1
		});
	}
	if (scrollbarWidths.right) {
		rowEls.css({
			'border-right-width': 1,
			'margin-right': scrollbarWidths.right - 1
		});
	}
}


// Undoes compensateScroll and restores all borders/margins
function uncompensateScroll(rowEls) {
	rowEls.css({
		'margin-left': '',
		'margin-right': '',
		'border-left-width': '',
		'border-right-width': ''
	});
}


// Make the mouse cursor express that an event is not allowed in the current area
function disableCursor() {
	$('body').addClass('fc-not-allowed');
}


// Returns the mouse cursor to its original look
function enableCursor() {
	$('body').removeClass('fc-not-allowed');
}


// Given a total available height to fill, have `els` (essentially child rows) expand to accomodate.
// By default, all elements that are shorter than the recommended height are expanded uniformly, not considering
// any other els that are already too tall. if `shouldRedistribute` is on, it considers these tall rows and 
// reduces the available height.
function distributeHeight(els, availableHeight, shouldRedistribute) {

	// *FLOORING NOTE*: we floor in certain places because zoom can give inaccurate floating-point dimensions,
	// and it is better to be shorter than taller, to avoid creating unnecessary scrollbars.

	var minOffset1 = Math.floor(availableHeight / els.length); // for non-last element
	var minOffset2 = Math.floor(availableHeight - minOffset1 * (els.length - 1)); // for last element *FLOORING NOTE*
	var flexEls = []; // elements that are allowed to expand. array of DOM nodes
	var flexOffsets = []; // amount of vertical space it takes up
	var flexHeights = []; // actual css height
	var usedHeight = 0;

	undistributeHeight(els); // give all elements their natural height

	// find elements that are below the recommended height (expandable).
	// important to query for heights in a single first pass (to avoid reflow oscillation).
	els.each(function(i, el) {
		var minOffset = i === els.length - 1 ? minOffset2 : minOffset1;
		var naturalOffset = $(el).outerHeight(true);

		if (naturalOffset < minOffset) {
			flexEls.push(el);
			flexOffsets.push(naturalOffset);
			flexHeights.push($(el).height());
		}
		else {
			// this element stretches past recommended height (non-expandable). mark the space as occupied.
			usedHeight += naturalOffset;
		}
	});

	// readjust the recommended height to only consider the height available to non-maxed-out rows.
	if (shouldRedistribute) {
		availableHeight -= usedHeight;
		minOffset1 = Math.floor(availableHeight / flexEls.length);
		minOffset2 = Math.floor(availableHeight - minOffset1 * (flexEls.length - 1)); // *FLOORING NOTE*
	}

	// assign heights to all expandable elements
	$(flexEls).each(function(i, el) {
		var minOffset = i === flexEls.length - 1 ? minOffset2 : minOffset1;
		var naturalOffset = flexOffsets[i];
		var naturalHeight = flexHeights[i];
		var newHeight = minOffset - (naturalOffset - naturalHeight); // subtract the margin/padding

		if (naturalOffset < minOffset) { // we check this again because redistribution might have changed things
			$(el).height(newHeight);
		}
	});
}


// Undoes distrubuteHeight, restoring all els to their natural height
function undistributeHeight(els) {
	els.height('');
}


// Given `els`, a jQuery set of <td> cells, find the cell with the largest natural width and set the widths of all the
// cells to be that width.
// PREREQUISITE: if you want a cell to take up width, it needs to have a single inner element w/ display:inline
function matchCellWidths(els) {
	var maxInnerWidth = 0;

	els.find('> span').each(function(i, innerEl) {
		var innerWidth = $(innerEl).outerWidth();
		if (innerWidth > maxInnerWidth) {
			maxInnerWidth = innerWidth;
		}
	});

	maxInnerWidth++; // sometimes not accurate of width the text needs to stay on one line. insurance

	els.width(maxInnerWidth);

	return maxInnerWidth;
}


// Given one element that resides inside another,
// Subtracts the height of the inner element from the outer element.
function subtractInnerElHeight(outerEl, innerEl) {
	var both = outerEl.add(innerEl);
	var diff;

	// effin' IE8/9/10/11 sometimes returns 0 for dimensions. this weird hack was the only thing that worked
	both.css({
		position: 'relative', // cause a reflow, which will force fresh dimension recalculation
		left: -1 // ensure reflow in case the el was already relative. negative is less likely to cause new scroll
	});
	diff = outerEl.outerHeight() - innerEl.outerHeight(); // grab the dimensions
	both.css({ position: '', left: '' }); // undo hack

	return diff;
}


/* Element Geom Utilities
----------------------------------------------------------------------------------------------------------------------*/

FC.getOuterRect = getOuterRect;
FC.getClientRect = getClientRect;
FC.getContentRect = getContentRect;
FC.getScrollbarWidths = getScrollbarWidths;


// borrowed from https://github.com/jquery/jquery-ui/blob/1.11.0/ui/core.js#L51
function getScrollParent(el) {
	var position = el.css('position'),
		scrollParent = el.parents().filter(function() {
			var parent = $(this);
			return (/(auto|scroll)/).test(
				parent.css('overflow') + parent.css('overflow-y') + parent.css('overflow-x')
			);
		}).eq(0);

	return position === 'fixed' || !scrollParent.length ? $(el[0].ownerDocument || document) : scrollParent;
}


// Queries the outer bounding area of a jQuery element.
// Returns a rectangle with absolute coordinates: left, right (exclusive), top, bottom (exclusive).
// Origin is optional.
function getOuterRect(el, origin) {
	var offset = el.offset();
	var left = offset.left - (origin ? origin.left : 0);
	var top = offset.top - (origin ? origin.top : 0);

	return {
		left: left,
		right: left + el.outerWidth(),
		top: top,
		bottom: top + el.outerHeight()
	};
}


// Queries the area within the margin/border/scrollbars of a jQuery element. Does not go within the padding.
// Returns a rectangle with absolute coordinates: left, right (exclusive), top, bottom (exclusive).
// Origin is optional.
// NOTE: should use clientLeft/clientTop, but very unreliable cross-browser.
function getClientRect(el, origin) {
	var offset = el.offset();
	var scrollbarWidths = getScrollbarWidths(el);
	var left = offset.left + getCssFloat(el, 'border-left-width') + scrollbarWidths.left - (origin ? origin.left : 0);
	var top = offset.top + getCssFloat(el, 'border-top-width') + scrollbarWidths.top - (origin ? origin.top : 0);

	return {
		left: left,
		right: left + el[0].clientWidth, // clientWidth includes padding but NOT scrollbars
		top: top,
		bottom: top + el[0].clientHeight // clientHeight includes padding but NOT scrollbars
	};
}


// Queries the area within the margin/border/padding of a jQuery element. Assumed not to have scrollbars.
// Returns a rectangle with absolute coordinates: left, right (exclusive), top, bottom (exclusive).
// Origin is optional.
function getContentRect(el, origin) {
	var offset = el.offset(); // just outside of border, margin not included
	var left = offset.left + getCssFloat(el, 'border-left-width') + getCssFloat(el, 'padding-left') -
		(origin ? origin.left : 0);
	var top = offset.top + getCssFloat(el, 'border-top-width') + getCssFloat(el, 'padding-top') -
		(origin ? origin.top : 0);

	return {
		left: left,
		right: left + el.width(),
		top: top,
		bottom: top + el.height()
	};
}


// Returns the computed left/right/top/bottom scrollbar widths for the given jQuery element.
// NOTE: should use clientLeft/clientTop, but very unreliable cross-browser.
function getScrollbarWidths(el) {
	var leftRightWidth = el.innerWidth() - el[0].clientWidth; // the paddings cancel out, leaving the scrollbars
	var widths = {
		left: 0,
		right: 0,
		top: 0,
		bottom: el.innerHeight() - el[0].clientHeight // the paddings cancel out, leaving the bottom scrollbar
	};

	if (getIsLeftRtlScrollbars() && el.css('direction') == 'rtl') { // is the scrollbar on the left side?
		widths.left = leftRightWidth;
	}
	else {
		widths.right = leftRightWidth;
	}

	return widths;
}


// Logic for determining if, when the element is right-to-left, the scrollbar appears on the left side

var _isLeftRtlScrollbars = null;

function getIsLeftRtlScrollbars() { // responsible for caching the computation
	if (_isLeftRtlScrollbars === null) {
		_isLeftRtlScrollbars = computeIsLeftRtlScrollbars();
	}
	return _isLeftRtlScrollbars;
}

function computeIsLeftRtlScrollbars() { // creates an offscreen test element, then removes it
	var el = $('<div><div/></div>')
		.css({
			position: 'absolute',
			top: -1000,
			left: 0,
			border: 0,
			padding: 0,
			overflow: 'scroll',
			direction: 'rtl'
		})
		.appendTo('body');
	var innerEl = el.children();
	var res = innerEl.offset().left > el.offset().left; // is the inner div shifted to accommodate a left scrollbar?
	el.remove();
	return res;
}


// Retrieves a jQuery element's computed CSS value as a floating-point number.
// If the queried value is non-numeric (ex: IE can return "medium" for border width), will just return zero.
function getCssFloat(el, prop) {
	return parseFloat(el.css(prop)) || 0;
}


/* Mouse / Touch Utilities
----------------------------------------------------------------------------------------------------------------------*/

FC.preventDefault = preventDefault;


// Returns a boolean whether this was a left mouse click and no ctrl key (which means right click on Mac)
function isPrimaryMouseButton(ev) {
	return ev.which == 1 && !ev.ctrlKey;
}


function getEvX(ev) {
	if (ev.pageX !== undefined) {
		return ev.pageX;
	}
	var touches = ev.originalEvent.touches;
	if (touches) {
		return touches[0].pageX;
	}
}


function getEvY(ev) {
	if (ev.pageY !== undefined) {
		return ev.pageY;
	}
	var touches = ev.originalEvent.touches;
	if (touches) {
		return touches[0].pageY;
	}
}


function getEvIsTouch(ev) {
	return /^touch/.test(ev.type);
}


function preventSelection(el) {
	el.addClass('fc-unselectable')
		.on('selectstart', preventDefault);
}


// Stops a mouse/touch event from doing it's native browser action
function preventDefault(ev) {
	ev.preventDefault();
}


/* General Geometry Utils
----------------------------------------------------------------------------------------------------------------------*/

FC.intersectRects = intersectRects;

// Returns a new rectangle that is the intersection of the two rectangles. If they don't intersect, returns false
function intersectRects(rect1, rect2) {
	var res = {
		left: Math.max(rect1.left, rect2.left),
		right: Math.min(rect1.right, rect2.right),
		top: Math.max(rect1.top, rect2.top),
		bottom: Math.min(rect1.bottom, rect2.bottom)
	};

	if (res.left < res.right && res.top < res.bottom) {
		return res;
	}
	return false;
}


// Returns a new point that will have been moved to reside within the given rectangle
function constrainPoint(point, rect) {
	return {
		left: Math.min(Math.max(point.left, rect.left), rect.right),
		top: Math.min(Math.max(point.top, rect.top), rect.bottom)
	};
}


// Returns a point that is the center of the given rectangle
function getRectCenter(rect) {
	return {
		left: (rect.left + rect.right) / 2,
		top: (rect.top + rect.bottom) / 2
	};
}


// Subtracts point2's coordinates from point1's coordinates, returning a delta
function diffPoints(point1, point2) {
	return {
		left: point1.left - point2.left,
		top: point1.top - point2.top
	};
}


/* Object Ordering by Field
----------------------------------------------------------------------------------------------------------------------*/

FC.parseFieldSpecs = parseFieldSpecs;
FC.compareByFieldSpecs = compareByFieldSpecs;
FC.compareByFieldSpec = compareByFieldSpec;
FC.flexibleCompare = flexibleCompare;


function parseFieldSpecs(input) {
	var specs = [];
	var tokens = [];
	var i, token;

	if (typeof input === 'string') {
		tokens = input.split(/\s*,\s*/);
	}
	else if (typeof input === 'function') {
		tokens = [ input ];
	}
	else if ($.isArray(input)) {
		tokens = input;
	}

	for (i = 0; i < tokens.length; i++) {
		token = tokens[i];

		if (typeof token === 'string') {
			specs.push(
				token.charAt(0) == '-' ?
					{ field: token.substring(1), order: -1 } :
					{ field: token, order: 1 }
			);
		}
		else if (typeof token === 'function') {
			specs.push({ func: token });
		}
	}

	return specs;
}


function compareByFieldSpecs(obj1, obj2, fieldSpecs) {
	var i;
	var cmp;

	for (i = 0; i < fieldSpecs.length; i++) {
		cmp = compareByFieldSpec(obj1, obj2, fieldSpecs[i]);
		if (cmp) {
			return cmp;
		}
	}

	return 0;
}


function compareByFieldSpec(obj1, obj2, fieldSpec) {
	if (fieldSpec.func) {
		return fieldSpec.func(obj1, obj2);
	}
	return flexibleCompare(obj1[fieldSpec.field], obj2[fieldSpec.field]) *
		(fieldSpec.order || 1);
}


function flexibleCompare(a, b) {
	if (!a && !b) {
		return 0;
	}
	if (b == null) {
		return -1;
	}
	if (a == null) {
		return 1;
	}
	if ($.type(a) === 'string' || $.type(b) === 'string') {
		return String(a).localeCompare(String(b));
	}
	return a - b;
}


/* FullCalendar-specific Misc Utilities
----------------------------------------------------------------------------------------------------------------------*/


// Computes the intersection of the two ranges. Returns undefined if no intersection.
// Expects all dates to be normalized to the same timezone beforehand.
// TODO: move to date section?
function intersectRanges(subjectRange, constraintRange) {
	var subjectStart = subjectRange.start;
	var subjectEnd = subjectRange.end;
	var constraintStart = constraintRange.start;
	var constraintEnd = constraintRange.end;
	var segStart, segEnd;
	var isStart, isEnd;

	if (subjectEnd > constraintStart && subjectStart < constraintEnd) { // in bounds at all?

		if (subjectStart >= constraintStart) {
			segStart = subjectStart.clone();
			isStart = true;
		}
		else {
			segStart = constraintStart.clone();
			isStart =  false;
		}

		if (subjectEnd <= constraintEnd) {
			segEnd = subjectEnd.clone();
			isEnd = true;
		}
		else {
			segEnd = constraintEnd.clone();
			isEnd = false;
		}

		return {
			start: segStart,
			end: segEnd,
			isStart: isStart,
			isEnd: isEnd
		};
	}
}


/* Date Utilities
----------------------------------------------------------------------------------------------------------------------*/

FC.computeIntervalUnit = computeIntervalUnit;
FC.divideRangeByDuration = divideRangeByDuration;
FC.divideDurationByDuration = divideDurationByDuration;
FC.multiplyDuration = multiplyDuration;
FC.durationHasTime = durationHasTime;

var dayIDs = [ 'sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat' ];
var intervalUnits = [ 'year', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond' ];


// Diffs the two moments into a Duration where full-days are recorded first, then the remaining time.
// Moments will have their timezones normalized.
function diffDayTime(a, b) {
	return moment.duration({
		days: a.clone().stripTime().diff(b.clone().stripTime(), 'days'),
		ms: a.time() - b.time() // time-of-day from day start. disregards timezone
	});
}


// Diffs the two moments via their start-of-day (regardless of timezone). Produces whole-day durations.
function diffDay(a, b) {
	return moment.duration({
		days: a.clone().stripTime().diff(b.clone().stripTime(), 'days')
	});
}


// Diffs two moments, producing a duration, made of a whole-unit-increment of the given unit. Uses rounding.
function diffByUnit(a, b, unit) {
	return moment.duration(
		Math.round(a.diff(b, unit, true)), // returnFloat=true
		unit
	);
}


// Computes the unit name of the largest whole-unit period of time.
// For example, 48 hours will be "days" whereas 49 hours will be "hours".
// Accepts start/end, a range object, or an original duration object.
function computeIntervalUnit(start, end) {
	var i, unit;
	var val;

	for (i = 0; i < intervalUnits.length; i++) {
		unit = intervalUnits[i];
		val = computeRangeAs(unit, start, end);

		if (val >= 1 && isInt(val)) {
			break;
		}
	}

	return unit; // will be "milliseconds" if nothing else matches
}


// Computes the number of units (like "hours") in the given range.
// Range can be a {start,end} object, separate start/end args, or a Duration.
// Results are based on Moment's .as() and .diff() methods, so results can depend on internal handling
// of month-diffing logic (which tends to vary from version to version).
function computeRangeAs(unit, start, end) {

	if (end != null) { // given start, end
		return end.diff(start, unit, true);
	}
	else if (moment.isDuration(start)) { // given duration
		return start.as(unit);
	}
	else { // given { start, end } range object
		return start.end.diff(start.start, unit, true);
	}
}


// Intelligently divides a range (specified by a start/end params) by a duration
function divideRangeByDuration(start, end, dur) {
	var months;

	if (durationHasTime(dur)) {
		return (end - start) / dur;
	}
	months = dur.asMonths();
	if (Math.abs(months) >= 1 && isInt(months)) {
		return end.diff(start, 'months', true) / months;
	}
	return end.diff(start, 'days', true) / dur.asDays();
}


// Intelligently divides one duration by another
function divideDurationByDuration(dur1, dur2) {
	var months1, months2;

	if (durationHasTime(dur1) || durationHasTime(dur2)) {
		return dur1 / dur2;
	}
	months1 = dur1.asMonths();
	months2 = dur2.asMonths();
	if (
		Math.abs(months1) >= 1 && isInt(months1) &&
		Math.abs(months2) >= 1 && isInt(months2)
	) {
		return months1 / months2;
	}
	return dur1.asDays() / dur2.asDays();
}


// Intelligently multiplies a duration by a number
function multiplyDuration(dur, n) {
	var months;

	if (durationHasTime(dur)) {
		return moment.duration(dur * n);
	}
	months = dur.asMonths();
	if (Math.abs(months) >= 1 && isInt(months)) {
		return moment.duration({ months: months * n });
	}
	return moment.duration({ days: dur.asDays() * n });
}


// Returns a boolean about whether the given duration has any time parts (hours/minutes/seconds/ms)
function durationHasTime(dur) {
	return Boolean(dur.hours() || dur.minutes() || dur.seconds() || dur.milliseconds());
}


function isNativeDate(input) {
	return  Object.prototype.toString.call(input) === '[object Date]' || input instanceof Date;
}


// Returns a boolean about whether the given input is a time string, like "06:40:00" or "06:00"
function isTimeString(str) {
	return /^\d+\:\d+(?:\:\d+\.?(?:\d{3})?)?$/.test(str);
}


/* Logging and Debug
----------------------------------------------------------------------------------------------------------------------*/

FC.log = function() {
	var console = window.console;

	if (console && console.log) {
		return console.log.apply(console, arguments);
	}
};

FC.warn = function() {
	var console = window.console;

	if (console && console.warn) {
		return console.warn.apply(console, arguments);
	}
	else {
		return FC.log.apply(FC, arguments);
	}
};


/* General Utilities
----------------------------------------------------------------------------------------------------------------------*/

var hasOwnPropMethod = {}.hasOwnProperty;


// Merges an array of objects into a single object.
// The second argument allows for an array of property names who's object values will be merged together.
function mergeProps(propObjs, complexProps) {
	var dest = {};
	var i, name;
	var complexObjs;
	var j, val;
	var props;

	if (complexProps) {
		for (i = 0; i < complexProps.length; i++) {
			name = complexProps[i];
			complexObjs = [];

			// collect the trailing object values, stopping when a non-object is discovered
			for (j = propObjs.length - 1; j >= 0; j--) {
				val = propObjs[j][name];

				if (typeof val === 'object') {
					complexObjs.unshift(val);
				}
				else if (val !== undefined) {
					dest[name] = val; // if there were no objects, this value will be used
					break;
				}
			}

			// if the trailing values were objects, use the merged value
			if (complexObjs.length) {
				dest[name] = mergeProps(complexObjs);
			}
		}
	}

	// copy values into the destination, going from last to first
	for (i = propObjs.length - 1; i >= 0; i--) {
		props = propObjs[i];

		for (name in props) {
			if (!(name in dest)) { // if already assigned by previous props or complex props, don't reassign
				dest[name] = props[name];
			}
		}
	}

	return dest;
}


// Create an object that has the given prototype. Just like Object.create
function createObject(proto) {
	var f = function() {};
	f.prototype = proto;
	return new f();
}


function copyOwnProps(src, dest) {
	for (var name in src) {
		if (hasOwnProp(src, name)) {
			dest[name] = src[name];
		}
	}
}


// Copies over certain methods with the same names as Object.prototype methods. Overcomes an IE<=8 bug:
// https://developer.mozilla.org/en-US/docs/ECMAScript_DontEnum_attribute#JScript_DontEnum_Bug
function copyNativeMethods(src, dest) {
	var names = [ 'constructor', 'toString', 'valueOf' ];
	var i, name;

	for (i = 0; i < names.length; i++) {
		name = names[i];

		if (src[name] !== Object.prototype[name]) {
			dest[name] = src[name];
		}
	}
}


function hasOwnProp(obj, name) {
	return hasOwnPropMethod.call(obj, name);
}


// Is the given value a non-object non-function value?
function isAtomic(val) {
	return /undefined|null|boolean|number|string/.test($.type(val));
}


function applyAll(functions, thisObj, args) {
	if ($.isFunction(functions)) {
		functions = [ functions ];
	}
	if (functions) {
		var i;
		var ret;
		for (i=0; i<functions.length; i++) {
			ret = functions[i].apply(thisObj, args) || ret;
		}
		return ret;
	}
}


function firstDefined() {
	for (var i=0; i<arguments.length; i++) {
		if (arguments[i] !== undefined) {
			return arguments[i];
		}
	}
}


function htmlEscape(s) {
	return (s + '').replace(/&/g, '&amp;')
		.replace(/</g, '&lt;')
		.replace(/>/g, '&gt;')
		.replace(/'/g, '&#039;')
		.replace(/"/g, '&quot;')
		.replace(/\n/g, '<br />');
}


function stripHtmlEntities(text) {
	return text.replace(/&.*?;/g, '');
}


// Given a hash of CSS properties, returns a string of CSS.
// Uses property names as-is (no camel-case conversion). Will not make statements for null/undefined values.
function cssToStr(cssProps) {
	var statements = [];

	$.each(cssProps, function(name, val) {
		if (val != null) {
			statements.push(name + ':' + val);
		}
	});

	return statements.join(';');
}


function capitaliseFirstLetter(str) {
	return str.charAt(0).toUpperCase() + str.slice(1);
}


function compareNumbers(a, b) { // for .sort()
	return a - b;
}


function isInt(n) {
	return n % 1 === 0;
}


// Returns a method bound to the given object context.
// Just like one of the jQuery.proxy signatures, but without the undesired behavior of treating the same method with
// different contexts as identical when binding/unbinding events.
function proxy(obj, methodName) {
	var method = obj[methodName];

	return function() {
		return method.apply(obj, arguments);
	};
}


// Returns a function, that, as long as it continues to be invoked, will not
// be triggered. The function will be called after it stops being called for
// N milliseconds. If `immediate` is passed, trigger the function on the
// leading edge, instead of the trailing.
// https://github.com/jashkenas/underscore/blob/1.6.0/underscore.js#L714
function debounce(func, wait, immediate) {
	var timeout, args, context, timestamp, result;

	var later = function() {
		var last = +new Date() - timestamp;
		if (last < wait) {
			timeout = setTimeout(later, wait - last);
		}
		else {
			timeout = null;
			if (!immediate) {
				result = func.apply(context, args);
				context = args = null;
			}
		}
	};

	return function() {
		context = this;
		args = arguments;
		timestamp = +new Date();
		var callNow = immediate && !timeout;
		if (!timeout) {
			timeout = setTimeout(later, wait);
		}
		if (callNow) {
			result = func.apply(context, args);
			context = args = null;
		}
		return result;
	};
}

;;

var ambigDateOfMonthRegex = /^\s*\d{4}-\d\d$/;
var ambigTimeOrZoneRegex =
	/^\s*\d{4}-(?:(\d\d-\d\d)|(W\d\d$)|(W\d\d-\d)|(\d\d\d))((T| )(\d\d(:\d\d(:\d\d(\.\d+)?)?)?)?)?$/;
var newMomentProto = moment.fn; // where we will attach our new methods
var oldMomentProto = $.extend({}, newMomentProto); // copy of original moment methods
var allowValueOptimization;
var setUTCValues; // function defined below
var setLocalValues; // function defined below


// Creating
// -------------------------------------------------------------------------------------------------

// Creates a new moment, similar to the vanilla moment(...) constructor, but with
// extra features (ambiguous time, enhanced formatting). When given an existing moment,
// it will function as a clone (and retain the zone of the moment). Anything else will
// result in a moment in the local zone.
FC.moment = function() {
	return makeMoment(arguments);
};

// Sames as FC.moment, but forces the resulting moment to be in the UTC timezone.
FC.moment.utc = function() {
	var mom = makeMoment(arguments, true);

	// Force it into UTC because makeMoment doesn't guarantee it
	// (if given a pre-existing moment for example)
	if (mom.hasTime()) { // don't give ambiguously-timed moments a UTC zone
		mom.utc();
	}

	return mom;
};

// Same as FC.moment, but when given an ISO8601 string, the timezone offset is preserved.
// ISO8601 strings with no timezone offset will become ambiguously zoned.
FC.moment.parseZone = function() {
	return makeMoment(arguments, true, true);
};

// Builds an enhanced moment from args. When given an existing moment, it clones. When given a
// native Date, or called with no arguments (the current time), the resulting moment will be local.
// Anything else needs to be "parsed" (a string or an array), and will be affected by:
//    parseAsUTC - if there is no zone information, should we parse the input in UTC?
//    parseZone - if there is zone information, should we force the zone of the moment?
function makeMoment(args, parseAsUTC, parseZone) {
	var input = args[0];
	var isSingleString = args.length == 1 && typeof input === 'string';
	var isAmbigTime;
	var isAmbigZone;
	var ambigMatch;
	var mom;

	if (moment.isMoment(input)) {
		mom = moment.apply(null, args); // clone it
		transferAmbigs(input, mom); // the ambig flags weren't transfered with the clone
	}
	else if (isNativeDate(input) || input === undefined) {
		mom = moment.apply(null, args); // will be local
	}
	else { // "parsing" is required
		isAmbigTime = false;
		isAmbigZone = false;

		if (isSingleString) {
			if (ambigDateOfMonthRegex.test(input)) {
				// accept strings like '2014-05', but convert to the first of the month
				input += '-01';
				args = [ input ]; // for when we pass it on to moment's constructor
				isAmbigTime = true;
				isAmbigZone = true;
			}
			else if ((ambigMatch = ambigTimeOrZoneRegex.exec(input))) {
				isAmbigTime = !ambigMatch[5]; // no time part?
				isAmbigZone = true;
			}
		}
		else if ($.isArray(input)) {
			// arrays have no timezone information, so assume ambiguous zone
			isAmbigZone = true;
		}
		// otherwise, probably a string with a format

		if (parseAsUTC || isAmbigTime) {
			mom = moment.utc.apply(moment, args);
		}
		else {
			mom = moment.apply(null, args);
		}

		if (isAmbigTime) {
			mom._ambigTime = true;
			mom._ambigZone = true; // ambiguous time always means ambiguous zone
		}
		else if (parseZone) { // let's record the inputted zone somehow
			if (isAmbigZone) {
				mom._ambigZone = true;
			}
			else if (isSingleString) {
				if (mom.utcOffset) {
					mom.utcOffset(input); // if not a valid zone, will assign UTC
				}
				else {
					mom.zone(input); // for moment-pre-2.9
				}
			}
		}
	}

	mom._fullCalendar = true; // flag for extended functionality

	return mom;
}


// A clone method that works with the flags related to our enhanced functionality.
// In the future, use moment.momentProperties
newMomentProto.clone = function() {
	var mom = oldMomentProto.clone.apply(this, arguments);

	// these flags weren't transfered with the clone
	transferAmbigs(this, mom);
	if (this._fullCalendar) {
		mom._fullCalendar = true;
	}

	return mom;
};


// Week Number
// -------------------------------------------------------------------------------------------------


// Returns the week number, considering the locale's custom week number calcuation
// `weeks` is an alias for `week`
newMomentProto.week = newMomentProto.weeks = function(input) {
	var weekCalc = (this._locale || this._lang) // works pre-moment-2.8
		._fullCalendar_weekCalc;

	if (input == null && typeof weekCalc === 'function') { // custom function only works for getter
		return weekCalc(this);
	}
	else if (weekCalc === 'ISO') {
		return oldMomentProto.isoWeek.apply(this, arguments); // ISO getter/setter
	}

	return oldMomentProto.week.apply(this, arguments); // local getter/setter
};


// Time-of-day
// -------------------------------------------------------------------------------------------------

// GETTER
// Returns a Duration with the hours/minutes/seconds/ms values of the moment.
// If the moment has an ambiguous time, a duration of 00:00 will be returned.
//
// SETTER
// You can supply a Duration, a Moment, or a Duration-like argument.
// When setting the time, and the moment has an ambiguous time, it then becomes unambiguous.
newMomentProto.time = function(time) {

	// Fallback to the original method (if there is one) if this moment wasn't created via FullCalendar.
	// `time` is a generic enough method name where this precaution is necessary to avoid collisions w/ other plugins.
	if (!this._fullCalendar) {
		return oldMomentProto.time.apply(this, arguments);
	}

	if (time == null) { // getter
		return moment.duration({
			hours: this.hours(),
			minutes: this.minutes(),
			seconds: this.seconds(),
			milliseconds: this.milliseconds()
		});
	}
	else { // setter

		this._ambigTime = false; // mark that the moment now has a time

		if (!moment.isDuration(time) && !moment.isMoment(time)) {
			time = moment.duration(time);
		}

		// The day value should cause overflow (so 24 hours becomes 00:00:00 of next day).
		// Only for Duration times, not Moment times.
		var dayHours = 0;
		if (moment.isDuration(time)) {
			dayHours = Math.floor(time.asDays()) * 24;
		}

		// We need to set the individual fields.
		// Can't use startOf('day') then add duration. In case of DST at start of day.
		return this.hours(dayHours + time.hours())
			.minutes(time.minutes())
			.seconds(time.seconds())
			.milliseconds(time.milliseconds());
	}
};

// Converts the moment to UTC, stripping out its time-of-day and timezone offset,
// but preserving its YMD. A moment with a stripped time will display no time
// nor timezone offset when .format() is called.
newMomentProto.stripTime = function() {
	var a;

	if (!this._ambigTime) {

		// get the values before any conversion happens
		a = this.toArray(); // array of y/m/d/h/m/s/ms

		// TODO: use keepLocalTime in the future
		this.utc(); // set the internal UTC flag (will clear the ambig flags)
		setUTCValues(this, a.slice(0, 3)); // set the year/month/date. time will be zero

		// Mark the time as ambiguous. This needs to happen after the .utc() call, which might call .utcOffset(),
		// which clears all ambig flags. Same with setUTCValues with moment-timezone.
		this._ambigTime = true;
		this._ambigZone = true; // if ambiguous time, also ambiguous timezone offset
	}

	return this; // for chaining
};

// Returns if the moment has a non-ambiguous time (boolean)
newMomentProto.hasTime = function() {
	return !this._ambigTime;
};


// Timezone
// -------------------------------------------------------------------------------------------------

// Converts the moment to UTC, stripping out its timezone offset, but preserving its
// YMD and time-of-day. A moment with a stripped timezone offset will display no
// timezone offset when .format() is called.
// TODO: look into Moment's keepLocalTime functionality
newMomentProto.stripZone = function() {
	var a, wasAmbigTime;

	if (!this._ambigZone) {

		// get the values before any conversion happens
		a = this.toArray(); // array of y/m/d/h/m/s/ms
		wasAmbigTime = this._ambigTime;

		this.utc(); // set the internal UTC flag (might clear the ambig flags, depending on Moment internals)
		setUTCValues(this, a); // will set the year/month/date/hours/minutes/seconds/ms

		// the above call to .utc()/.utcOffset() unfortunately might clear the ambig flags, so restore
		this._ambigTime = wasAmbigTime || false;

		// Mark the zone as ambiguous. This needs to happen after the .utc() call, which might call .utcOffset(),
		// which clears the ambig flags. Same with setUTCValues with moment-timezone.
		this._ambigZone = true;
	}

	return this; // for chaining
};

// Returns of the moment has a non-ambiguous timezone offset (boolean)
newMomentProto.hasZone = function() {
	return !this._ambigZone;
};


// this method implicitly marks a zone
newMomentProto.local = function() {
	var a = this.toArray(); // year,month,date,hours,minutes,seconds,ms as an array
	var wasAmbigZone = this._ambigZone;

	oldMomentProto.local.apply(this, arguments);

	// ensure non-ambiguous
	// this probably already happened via local() -> utcOffset(), but don't rely on Moment's internals
	this._ambigTime = false;
	this._ambigZone = false;

	if (wasAmbigZone) {
		// If the moment was ambiguously zoned, the date fields were stored as UTC.
		// We want to preserve these, but in local time.
		// TODO: look into Moment's keepLocalTime functionality
		setLocalValues(this, a);
	}

	return this; // for chaining
};


// implicitly marks a zone
newMomentProto.utc = function() {
	oldMomentProto.utc.apply(this, arguments);

	// ensure non-ambiguous
	// this probably already happened via utc() -> utcOffset(), but don't rely on Moment's internals
	this._ambigTime = false;
	this._ambigZone = false;

	return this;
};


// methods for arbitrarily manipulating timezone offset.
// should clear time/zone ambiguity when called.
$.each([
	'zone', // only in moment-pre-2.9. deprecated afterwards
	'utcOffset'
], function(i, name) {
	if (oldMomentProto[name]) { // original method exists?

		// this method implicitly marks a zone (will probably get called upon .utc() and .local())
		newMomentProto[name] = function(tzo) {

			if (tzo != null) { // setter
				// these assignments needs to happen before the original zone method is called.
				// I forget why, something to do with a browser crash.
				this._ambigTime = false;
				this._ambigZone = false;
			}

			return oldMomentProto[name].apply(this, arguments);
		};
	}
});


// Formatting
// -------------------------------------------------------------------------------------------------

newMomentProto.format = function() {
	if (this._fullCalendar && arguments[0]) { // an enhanced moment? and a format string provided?
		return formatDate(this, arguments[0]); // our extended formatting
	}
	if (this._ambigTime) {
		return oldMomentFormat(this, 'YYYY-MM-DD');
	}
	if (this._ambigZone) {
		return oldMomentFormat(this, 'YYYY-MM-DD[T]HH:mm:ss');
	}
	return oldMomentProto.format.apply(this, arguments);
};

newMomentProto.toISOString = function() {
	if (this._ambigTime) {
		return oldMomentFormat(this, 'YYYY-MM-DD');
	}
	if (this._ambigZone) {
		return oldMomentFormat(this, 'YYYY-MM-DD[T]HH:mm:ss');
	}
	return oldMomentProto.toISOString.apply(this, arguments);
};


// Querying
// -------------------------------------------------------------------------------------------------

// Is the moment within the specified range? `end` is exclusive.
// FYI, this method is not a standard Moment method, so always do our enhanced logic.
newMomentProto.isWithin = function(start, end) {
	var a = commonlyAmbiguate([ this, start, end ]);
	return a[0] >= a[1] && a[0] < a[2];
};

// When isSame is called with units, timezone ambiguity is normalized before the comparison happens.
// If no units specified, the two moments must be identically the same, with matching ambig flags.
newMomentProto.isSame = function(input, units) {
	var a;

	// only do custom logic if this is an enhanced moment
	if (!this._fullCalendar) {
		return oldMomentProto.isSame.apply(this, arguments);
	}

	if (units) {
		a = commonlyAmbiguate([ this, input ], true); // normalize timezones but don't erase times
		return oldMomentProto.isSame.call(a[0], a[1], units);
	}
	else {
		input = FC.moment.parseZone(input); // normalize input
		return oldMomentProto.isSame.call(this, input) &&
			Boolean(this._ambigTime) === Boolean(input._ambigTime) &&
			Boolean(this._ambigZone) === Boolean(input._ambigZone);
	}
};

// Make these query methods work with ambiguous moments
$.each([
	'isBefore',
	'isAfter'
], function(i, methodName) {
	newMomentProto[methodName] = function(input, units) {
		var a;

		// only do custom logic if this is an enhanced moment
		if (!this._fullCalendar) {
			return oldMomentProto[methodName].apply(this, arguments);
		}

		a = commonlyAmbiguate([ this, input ]);
		return oldMomentProto[methodName].call(a[0], a[1], units);
	};
});


// Misc Internals
// -------------------------------------------------------------------------------------------------

// given an array of moment-like inputs, return a parallel array w/ moments similarly ambiguated.
// for example, of one moment has ambig time, but not others, all moments will have their time stripped.
// set `preserveTime` to `true` to keep times, but only normalize zone ambiguity.
// returns the original moments if no modifications are necessary.
function commonlyAmbiguate(inputs, preserveTime) {
	var anyAmbigTime = false;
	var anyAmbigZone = false;
	var len = inputs.length;
	var moms = [];
	var i, mom;

	// parse inputs into real moments and query their ambig flags
	for (i = 0; i < len; i++) {
		mom = inputs[i];
		if (!moment.isMoment(mom)) {
			mom = FC.moment.parseZone(mom);
		}
		anyAmbigTime = anyAmbigTime || mom._ambigTime;
		anyAmbigZone = anyAmbigZone || mom._ambigZone;
		moms.push(mom);
	}

	// strip each moment down to lowest common ambiguity
	// use clones to avoid modifying the original moments
	for (i = 0; i < len; i++) {
		mom = moms[i];
		if (!preserveTime && anyAmbigTime && !mom._ambigTime) {
			moms[i] = mom.clone().stripTime();
		}
		else if (anyAmbigZone && !mom._ambigZone) {
			moms[i] = mom.clone().stripZone();
		}
	}

	return moms;
}

// Transfers all the flags related to ambiguous time/zone from the `src` moment to the `dest` moment
// TODO: look into moment.momentProperties for this.
function transferAmbigs(src, dest) {
	if (src._ambigTime) {
		dest._ambigTime = true;
	}
	else if (dest._ambigTime) {
		dest._ambigTime = false;
	}

	if (src._ambigZone) {
		dest._ambigZone = true;
	}
	else if (dest._ambigZone) {
		dest._ambigZone = false;
	}
}


// Sets the year/month/date/etc values of the moment from the given array.
// Inefficient because it calls each individual setter.
function setMomentValues(mom, a) {
	mom.year(a[0] || 0)
		.month(a[1] || 0)
		.date(a[2] || 0)
		.hours(a[3] || 0)
		.minutes(a[4] || 0)
		.seconds(a[5] || 0)
		.milliseconds(a[6] || 0);
}

// Can we set the moment's internal date directly?
allowValueOptimization = '_d' in moment() && 'updateOffset' in moment;

// Utility function. Accepts a moment and an array of the UTC year/month/date/etc values to set.
// Assumes the given moment is already in UTC mode.
setUTCValues = allowValueOptimization ? function(mom, a) {
	// simlate what moment's accessors do
	mom._d.setTime(Date.UTC.apply(Date, a));
	moment.updateOffset(mom, false); // keepTime=false
} : setMomentValues;

// Utility function. Accepts a moment and an array of the local year/month/date/etc values to set.
// Assumes the given moment is already in local mode.
setLocalValues = allowValueOptimization ? function(mom, a) {
	// simlate what moment's accessors do
	mom._d.setTime(+new Date( // FYI, there is now way to apply an array of args to a constructor
		a[0] || 0,
		a[1] || 0,
		a[2] || 0,
		a[3] || 0,
		a[4] || 0,
		a[5] || 0,
		a[6] || 0
	));
	moment.updateOffset(mom, false); // keepTime=false
} : setMomentValues;

;;

// Single Date Formatting
// -------------------------------------------------------------------------------------------------


// call this if you want Moment's original format method to be used
function oldMomentFormat(mom, formatStr) {
	return oldMomentProto.format.call(mom, formatStr); // oldMomentProto defined in moment-ext.js
}


// Formats `date` with a Moment formatting string, but allow our non-zero areas and
// additional token.
function formatDate(date, formatStr) {
	return formatDateWithChunks(date, getFormatStringChunks(formatStr));
}


function formatDateWithChunks(date, chunks) {
	var s = '';
	var i;

	for (i=0; i<chunks.length; i++) {
		s += formatDateWithChunk(date, chunks[i]);
	}

	return s;
}


// addition formatting tokens we want recognized
var tokenOverrides = {
	t: function(date) { // "a" or "p"
		return oldMomentFormat(date, 'a').charAt(0);
	},
	T: function(date) { // "A" or "P"
		return oldMomentFormat(date, 'A').charAt(0);
	}
};


function formatDateWithChunk(date, chunk) {
	var token;
	var maybeStr;

	if (typeof chunk === 'string') { // a literal string
		return chunk;
	}
	else if ((token = chunk.token)) { // a token, like "YYYY"
		if (tokenOverrides[token]) {
			return tokenOverrides[token](date); // use our custom token
		}
		return oldMomentFormat(date, token);
	}
	else if (chunk.maybe) { // a grouping of other chunks that must be non-zero
		maybeStr = formatDateWithChunks(date, chunk.maybe);
		if (maybeStr.match(/[1-9]/)) {
			return maybeStr;
		}
	}

	return '';
}


// Date Range Formatting
// -------------------------------------------------------------------------------------------------
// TODO: make it work with timezone offset

// Using a formatting string meant for a single date, generate a range string, like
// "Sep 2 - 9 2013", that intelligently inserts a separator where the dates differ.
// If the dates are the same as far as the format string is concerned, just return a single
// rendering of one date, without any separator.
function formatRange(date1, date2, formatStr, separator, isRTL) {
	var localeData;

	date1 = FC.moment.parseZone(date1);
	date2 = FC.moment.parseZone(date2);

	localeData = (date1.localeData || date1.lang).call(date1); // works with moment-pre-2.8

	// Expand localized format strings, like "LL" -> "MMMM D YYYY"
	formatStr = localeData.longDateFormat(formatStr) || formatStr;
	// BTW, this is not important for `formatDate` because it is impossible to put custom tokens
	// or non-zero areas in Moment's localized format strings.

	separator = separator || ' - ';

	return formatRangeWithChunks(
		date1,
		date2,
		getFormatStringChunks(formatStr),
		separator,
		isRTL
	);
}
FC.formatRange = formatRange; // expose


function formatRangeWithChunks(date1, date2, chunks, separator, isRTL) {
	var unzonedDate1 = date1.clone().stripZone(); // for formatSimilarChunk
	var unzonedDate2 = date2.clone().stripZone(); // "
	var chunkStr; // the rendering of the chunk
	var leftI;
	var leftStr = '';
	var rightI;
	var rightStr = '';
	var middleI;
	var middleStr1 = '';
	var middleStr2 = '';
	var middleStr = '';

	// Start at the leftmost side of the formatting string and continue until you hit a token
	// that is not the same between dates.
	for (leftI=0; leftI<chunks.length; leftI++) {
		chunkStr = formatSimilarChunk(date1, date2, unzonedDate1, unzonedDate2, chunks[leftI]);
		if (chunkStr === false) {
			break;
		}
		leftStr += chunkStr;
	}

	// Similarly, start at the rightmost side of the formatting string and move left
	for (rightI=chunks.length-1; rightI>leftI; rightI--) {
		chunkStr = formatSimilarChunk(date1, date2, unzonedDate1, unzonedDate2,  chunks[rightI]);
		if (chunkStr === false) {
			break;
		}
		rightStr = chunkStr + rightStr;
	}

	// The area in the middle is different for both of the dates.
	// Collect them distinctly so we can jam them together later.
	for (middleI=leftI; middleI<=rightI; middleI++) {
		middleStr1 += formatDateWithChunk(date1, chunks[middleI]);
		middleStr2 += formatDateWithChunk(date2, chunks[middleI]);
	}

	if (middleStr1 || middleStr2) {
		if (isRTL) {
			middleStr = middleStr2 + separator + middleStr1;
		}
		else {
			middleStr = middleStr1 + separator + middleStr2;
		}
	}

	return leftStr + middleStr + rightStr;
}


var similarUnitMap = {
	Y: 'year',
	M: 'month',
	D: 'day', // day of month
	d: 'day', // day of week
	// prevents a separator between anything time-related...
	A: 'second', // AM/PM
	a: 'second', // am/pm
	T: 'second', // A/P
	t: 'second', // a/p
	H: 'second', // hour (24)
	h: 'second', // hour (12)
	m: 'second', // minute
	s: 'second' // second
};
// TODO: week maybe?


// Given a formatting chunk, and given that both dates are similar in the regard the
// formatting chunk is concerned, format date1 against `chunk`. Otherwise, return `false`.
function formatSimilarChunk(date1, date2, unzonedDate1, unzonedDate2, chunk) {
	var token;
	var unit;

	if (typeof chunk === 'string') { // a literal string
		return chunk;
	}
	else if ((token = chunk.token)) {
		unit = similarUnitMap[token.charAt(0)];

		// are the dates the same for this unit of measurement?
		// use the unzoned dates for this calculation because unreliable when near DST (bug #2396)
		if (unit && unzonedDate1.isSame(unzonedDate2, unit)) {
			return oldMomentFormat(date1, token); // would be the same if we used `date2`
			// BTW, don't support custom tokens
		}
	}

	return false; // the chunk is NOT the same for the two dates
	// BTW, don't support splitting on non-zero areas
}


// Chunking Utils
// -----------------------------------------------------------------------