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Application modulaire fonctionnelle !

Emmanuel ROY authored on 12/08/2019 15:10:25
Showing 1 changed files

vendor/nesbot/carbon/src/Carbon/CarbonPeriod.php

                                     deleted file mode 100644
@@ -1,1765 +0,0 @@
                                     -<?php
+                                    -
                                     -/**
                                     - * This file is part of the Carbon package.
                                     - *
                                     - * (c) Brian Nesbitt <brian@nesbot.com>
                                     - *
                                     - * For the full copyright and license information, please view the LICENSE
                                     - * file that was distributed with this source code.
                                     - */
                                     -namespace Carbon;
+                                    -
                                     -use BadMethodCallException;
                                     -use Carbon\Exceptions\NotAPeriodException;
                                     -use Carbon\Traits\Options;
                                     -use Closure;
                                     -use Countable;
                                     -use DateInterval;
                                     -use DatePeriod;
                                     -use DateTime;
                                     -use DateTimeInterface;
                                     -use InvalidArgumentException;
                                     -use Iterator;
                                     -use ReflectionClass;
                                     -use ReflectionMethod;
                                     -use RuntimeException;
+                                    -
                                     -/**
                                     - * Substitution of DatePeriod with some modifications and many more features.
                                     - *
                                     - * @method static CarbonPeriod start($date, $inclusive = null) Create instance specifying start date.
                                     - * @method static CarbonPeriod since($date, $inclusive = null) Alias for start().
                                     - * @method static CarbonPeriod sinceNow($inclusive = null) Create instance with start date set to now.
                                     - * @method static CarbonPeriod end($date = null, $inclusive = null) Create instance specifying end date.
                                     - * @method static CarbonPeriod until($date = null, $inclusive = null) Alias for end().
                                     - * @method static CarbonPeriod untilNow($inclusive = null) Create instance with end date set to now.
                                     - * @method static CarbonPeriod dates($start, $end = null) Create instance with start and end date.
                                     - * @method static CarbonPeriod between($start, $end = null) Create instance with start and end date.
                                     - * @method static CarbonPeriod recurrences($recurrences = null) Create instance with maximum number of recurrences.
                                     - * @method static CarbonPeriod times($recurrences = null) Alias for recurrences().
                                     - * @method static CarbonPeriod options($options = null) Create instance with options.
                                     - * @method static CarbonPeriod toggle($options, $state = null) Create instance with options toggled on or off.
                                     - * @method static CarbonPeriod filter($callback, $name = null) Create instance with filter added to the stack.
                                     - * @method static CarbonPeriod push($callback, $name = null) Alias for filter().
                                     - * @method static CarbonPeriod prepend($callback, $name = null) Create instance with filter prepened to the stack.
                                     - * @method static CarbonPeriod filters(array $filters) Create instance with filters stack.
                                     - * @method static CarbonPeriod interval($interval) Create instance with given date interval.
                                     - * @method static CarbonPeriod each($interval) Create instance with given date interval.
                                     - * @method static CarbonPeriod every($interval) Create instance with given date interval.
                                     - * @method static CarbonPeriod step($interval) Create instance with given date interval.
                                     - * @method static CarbonPeriod stepBy($interval) Create instance with given date interval.
                                     - * @method static CarbonPeriod invert() Create instance with inverted date interval.
                                     - * @method static CarbonPeriod years($years = 1) Create instance specifying a number of years for date interval.
                                     - * @method static CarbonPeriod year($years = 1) Alias for years().
                                     - * @method static CarbonPeriod months($months = 1) Create instance specifying a number of months for date interval.
                                     - * @method static CarbonPeriod month($months = 1) Alias for months().
                                     - * @method static CarbonPeriod weeks($weeks = 1) Create instance specifying a number of weeks for date interval.
                                     - * @method static CarbonPeriod week($weeks = 1) Alias for weeks().
                                     - * @method static CarbonPeriod days($days = 1) Create instance specifying a number of days for date interval.
                                     - * @method static CarbonPeriod dayz($days = 1) Alias for days().
                                     - * @method static CarbonPeriod day($days = 1) Alias for days().
                                     - * @method static CarbonPeriod hours($hours = 1) Create instance specifying a number of hours for date interval.
                                     - * @method static CarbonPeriod hour($hours = 1) Alias for hours().
                                     - * @method static CarbonPeriod minutes($minutes = 1) Create instance specifying a number of minutes for date interval.
                                     - * @method static CarbonPeriod minute($minutes = 1) Alias for minutes().
                                     - * @method static CarbonPeriod seconds($seconds = 1) Create instance specifying a number of seconds for date interval.
                                     - * @method static CarbonPeriod second($seconds = 1) Alias for seconds().
                                     - * @method CarbonPeriod start($date, $inclusive = null) Change the period start date.
                                     - * @method CarbonPeriod since($date, $inclusive = null) Alias for start().
                                     - * @method CarbonPeriod sinceNow($inclusive = null) Change the period start date to now.
                                     - * @method CarbonPeriod end($date = null, $inclusive = null) Change the period end date.
                                     - * @method CarbonPeriod until($date = null, $inclusive = null) Alias for end().
                                     - * @method CarbonPeriod untilNow($inclusive = null) Change the period end date to now.
                                     - * @method CarbonPeriod dates($start, $end = null) Change the period start and end date.
                                     - * @method CarbonPeriod recurrences($recurrences = null) Change the maximum number of recurrences.
                                     - * @method CarbonPeriod times($recurrences = null) Alias for recurrences().
                                     - * @method CarbonPeriod options($options = null) Change the period options.
                                     - * @method CarbonPeriod toggle($options, $state = null) Toggle given options on or off.
                                     - * @method CarbonPeriod filter($callback, $name = null) Add a filter to the stack.
                                     - * @method CarbonPeriod push($callback, $name = null) Alias for filter().
                                     - * @method CarbonPeriod prepend($callback, $name = null) Prepend a filter to the stack.
                                     - * @method CarbonPeriod filters(array $filters = []) Set filters stack.
                                     - * @method CarbonPeriod interval($interval) Change the period date interval.
                                     - * @method CarbonPeriod invert() Invert the period date interval.
                                     - * @method CarbonPeriod years($years = 1) Set the years portion of the date interval.
                                     - * @method CarbonPeriod year($years = 1) Alias for years().
                                     - * @method CarbonPeriod months($months = 1) Set the months portion of the date interval.
                                     - * @method CarbonPeriod month($months = 1) Alias for months().
                                     - * @method CarbonPeriod weeks($weeks = 1) Set the weeks portion of the date interval.
                                     - * @method CarbonPeriod week($weeks = 1) Alias for weeks().
                                     - * @method CarbonPeriod days($days = 1) Set the days portion of the date interval.
                                     - * @method CarbonPeriod dayz($days = 1) Alias for days().
                                     - * @method CarbonPeriod day($days = 1) Alias for days().
                                     - * @method CarbonPeriod hours($hours = 1) Set the hours portion of the date interval.
                                     - * @method CarbonPeriod hour($hours = 1) Alias for hours().
                                     - * @method CarbonPeriod minutes($minutes = 1) Set the minutes portion of the date interval.
                                     - * @method CarbonPeriod minute($minutes = 1) Alias for minutes().
                                     - * @method CarbonPeriod seconds($seconds = 1) Set the seconds portion of the date interval.
                                     - * @method CarbonPeriod second($seconds = 1) Alias for seconds().
                                     - */
                                     -class CarbonPeriod implements Iterator, Countable
                                     -{
                                     -    use Options;
+                                    -
                                     -    /**
                                     -     * Built-in filters.
                                     -     *
                                     -     * @var string
                                     -     */
                                     -    const RECURRENCES_FILTER = 'Carbon\CarbonPeriod::filterRecurrences';
                                     -    const END_DATE_FILTER = 'Carbon\CarbonPeriod::filterEndDate';
+                                    -
                                     -    /**
                                     -     * Special value which can be returned by filters to end iteration. Also a filter.
                                     -     *
                                     -     * @var string
                                     -     */
                                     -    const END_ITERATION = 'Carbon\CarbonPeriod::endIteration';
+                                    -
                                     -    /**
                                     -     * Available options.
                                     -     *
                                     -     * @var int
                                     -     */
                                     -    const EXCLUDE_START_DATE = 1;
                                     -    const EXCLUDE_END_DATE = 2;
                                     -    const IMMUTABLE = 4;
+                                    -
                                     -    /**
                                     -     * Number of maximum attempts before giving up on finding next valid date.
                                     -     *
                                     -     * @var int
                                     -     */
                                     -    const NEXT_MAX_ATTEMPTS = 1000;
+                                    -
                                     -    /**
                                     -     * The registered macros.
                                     -     *
                                     -     * @var array
                                     -     */
                                     -    protected static $macros = [];
+                                    -
                                     -    /**
                                     -     * Date class of iteration items.
                                     -     *
                                     -     * @var string
                                     -     */
                                     -    protected $dateClass = Carbon::class;
+                                    -
                                     -    /**
                                     -     * Underlying date interval instance. Always present, one day by default.
                                     -     *
                                     -     * @var CarbonInterval
                                     -     */
                                     -    protected $dateInterval;
+                                    -
                                     -    /**
                                     -     * Whether current date interval was set by default.
                                     -     *
                                     -     * @var bool
                                     -     */
                                     -    protected $isDefaultInterval;
+                                    -
                                     -    /**
                                     -     * The filters stack.
                                     -     *
                                     -     * @var array
                                     -     */
                                     -    protected $filters = [];
+                                    -
                                     -    /**
                                     -     * Period start date. Applied on rewind. Always present, now by default.
                                     -     *
                                     -     * @var CarbonInterface
                                     -     */
                                     -    protected $startDate;
+                                    -
                                     -    /**
                                     -     * Period end date. For inverted interval should be before the start date. Applied via a filter.
                                     -     *
                                     -     * @var CarbonInterface|null
                                     -     */
                                     -    protected $endDate;
+                                    -
                                     -    /**
                                     -     * Limit for number of recurrences. Applied via a filter.
                                     -     *
                                     -     * @var int|null
                                     -     */
                                     -    protected $recurrences;
+                                    -
                                     -    /**
                                     -     * Iteration options.
                                     -     *
                                     -     * @var int
                                     -     */
                                     -    protected $options;
+                                    -
                                     -    /**
                                     -     * Index of current date. Always sequential, even if some dates are skipped by filters.
                                     -     * Equal to null only before the first iteration.
                                     -     *
                                     -     * @var int
                                     -     */
                                     -    protected $key;
+                                    -
                                     -    /**
                                     -     * Current date. May temporarily hold unaccepted value when looking for a next valid date.
                                     -     * Equal to null only before the first iteration.
                                     -     *
                                     -     * @var CarbonInterface
                                     -     */
                                     -    protected $current;
+                                    -
                                     -    /**
                                     -     * Timezone of current date. Taken from the start date.
                                     -     *
                                     -     * @var \DateTimeZone|null
                                     -     */
                                     -    protected $timezone;
+                                    -
                                     -    /**
                                     -     * The cached validation result for current date.
                                     -     *
                                     -     * @var bool|string|null
                                     -     */
                                     -    protected $validationResult;
+                                    -
                                     -    /**
                                     -     * Timezone handler for settings() method.
                                     -     *
                                     -     * @var mixed
                                     -     */
                                     -    protected $tzName;
+                                    -
                                     -    /**
                                     -     * Make a CarbonPeriod instance from given variable if possible.
                                     -     *
                                     -     * @param mixed $var
                                     -     *
                                     -     * @return static|null
                                     -     */
                                     -    public static function make($var)
                                     -    {
                                     -        try {
                                     -            return static::instance($var);
                                     -        } catch (NotAPeriodException $e) {
                                     -            return static::create($var);
                                     -        }
                                     -    }
+                                    -
                                     -    /**
                                     -     * Create a new instance from a DatePeriod or CarbonPeriod object.
                                     -     *
                                     -     * @param CarbonPeriod|DatePeriod $period
                                     -     *
                                     -     * @return static
                                     -     */
                                     -    public static function instance($period)
                                     -    {
                                     -        if ($period instanceof self) {
                                     -            return $period->copy();
                                     -        }
+                                    -
                                     -        if ($period instanceof DatePeriod) {
                                     -            return new static(
                                     -                $period->start,
                                     -                $period->end ?: $period->recurrences,
                                     -                $period->interval,
                                     -                $period->include_start_date ? 0 : static::EXCLUDE_START_DATE
                                     -            );
                                     -        }
+                                    -
                                     -        $class = get_called_class();
                                     -        $type = gettype($period);
+                                    -
                                     -        throw new NotAPeriodException(
                                     -            'Argument 1 passed to '.$class.'::'.__METHOD__.'() '.
                                     -            'must be an instance of DatePeriod or '.$class.', '.
                                     -            ($type === 'object' ? 'instance of '.get_class($period) : $type).' given.'
                                     -        );
                                     -    }
+                                    -
                                     -    /**
                                     -     * Get a copy of the instance.
                                     -     *
                                     -     * @return static
                                     -     */
                                     -    public function copy()
                                     -    {
                                     -        return clone $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * @alias copy
                                     -     *
                                     -     * Get a copy of the instance.
                                     -     *
                                     -     * @return static
                                     -     */
                                     -    public function clone()
                                     -    {
                                     -        return clone $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Create a new instance.
                                     -     *
                                     -     * @return static
                                     -     */
                                     -    public static function create(...$params)
                                     -    {
                                     -        return static::createFromArray($params);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Create a new instance from an array of parameters.
                                     -     *
                                     -     * @param array $params
                                     -     *
                                     -     * @return static
                                     -     */
                                     -    public static function createFromArray(array $params)
                                     -    {
                                     -        return new static(...$params);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Create CarbonPeriod from ISO 8601 string.
                                     -     *
                                     -     * @param string   $iso
                                     -     * @param int|null $options
                                     -     *
                                     -     * @return static
                                     -     */
                                     -    public static function createFromIso($iso, $options = null)
                                     -    {
                                     -        $params = static::parseIso8601($iso);
+                                    -
                                     -        $instance = static::createFromArray($params);
+                                    -
                                     -        if ($options !== null) {
                                     -            $instance->setOptions($options);
                                     -        }
+                                    -
                                     -        return $instance;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Return whether given interval contains non zero value of any time unit.
                                     -     *
                                     -     * @param \DateInterval $interval
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    protected static function intervalHasTime(DateInterval $interval)
                                     -    {
                                     -        return $interval->h || $interval->i || $interval->s || $interval->f;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Return whether given variable is an ISO 8601 specification.
                                     -     *
                                     -     * Note: Check is very basic, as actual validation will be done later when parsing.
                                     -     * We just want to ensure that variable is not any other type of a valid parameter.
                                     -     *
                                     -     * @param mixed $var
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    protected static function isIso8601($var)
                                     -    {
                                     -        if (!is_string($var)) {
                                     -            return false;
                                     -        }
+                                    -
                                     -        // Match slash but not within a timezone name.
                                     -        $part = '[a-z]+(?:[_-][a-z]+)*';
+                                    -
                                     -        preg_match("#\b$part/$part\b|(/)#i", $var, $match);
+                                    -
                                     -        return isset($match[1]);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Parse given ISO 8601 string into an array of arguments.
                                     -     *
                                     -     * @SuppressWarnings(PHPMD.ElseExpression)
                                     -     *
                                     -     * @param string $iso
                                     -     *
                                     -     * @return array
                                     -     */
                                     -    protected static function parseIso8601($iso)
                                     -    {
                                     -        $result = [];
+                                    -
                                     -        $interval = null;
                                     -        $start = null;
                                     -        $end = null;
+                                    -
                                     -        foreach (explode('/', $iso) as $key => $part) {
                                     -            if ($key === 0 && preg_match('/^R([0-9]*)$/', $part, $match)) {
                                     -                $parsed = strlen($match[1]) ? (int) $match[1] : null;
                                     -            } elseif ($interval === null && $parsed = CarbonInterval::make($part)) {
                                     -                $interval = $part;
                                     -            } elseif ($start === null && $parsed = Carbon::make($part)) {
                                     -                $start = $part;
                                     -            } elseif ($end === null && $parsed = Carbon::make(static::addMissingParts($start, $part))) {
                                     -                $end = $part;
                                     -            } else {
                                     -                throw new InvalidArgumentException("Invalid ISO 8601 specification: $iso.");
                                     -            }
+                                    -
                                     -            $result[] = $parsed;
                                     -        }
+                                    -
                                     -        return $result;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Add missing parts of the target date from the soure date.
                                     -     *
                                     -     * @param string $source
                                     -     * @param string $target
                                     -     *
                                     -     * @return string
                                     -     */
                                     -    protected static function addMissingParts($source, $target)
                                     -    {
                                     -        $pattern = '/'.preg_replace('/[0-9]+/', '[0-9]+', preg_quote($target, '/')).'$/';
+                                    -
                                     -        $result = preg_replace($pattern, $target, $source, 1, $count);
+                                    -
                                     -        return $count ? $result : $target;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Register a custom macro.
                                     -     *
                                     -     * @example
                                     -     * ```
                                     -     * CarbonPeriod::macro('middle', function () {
                                     -     *   return $this->getStartDate()->average($this->getEndDate());
                                     -     * });
                                     -     * echo CarbonPeriod::since('2011-05-12')->until('2011-06-03')->middle();
                                     -     * ```
                                     -     *
                                     -     * @param string          $name
                                     -     * @param object|callable $macro
                                     -     *
                                     -     * @return void
                                     -     */
                                     -    public static function macro($name, $macro)
                                     -    {
                                     -        static::$macros[$name] = $macro;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Register macros from a mixin object.
                                     -     *
                                     -     * @example
                                     -     * ```
                                     -     * CarbonPeriod::mixin(new class {
                                     -     *   public function addDays() {
                                     -     *     return function ($count = 1) {
                                     -     *       return $this->setStartDate(
                                     -     *         $this->getStartDate()->addDays($count)
                                     -     *       )->setEndDate(
                                     -     *         $this->getEndDate()->addDays($count)
                                     -     *       );
                                     -     *     };
                                     -     *   }
                                     -     *   public function subDays() {
                                     -     *     return function ($count = 1) {
                                     -     *       return $this->setStartDate(
                                     -     *         $this->getStartDate()->subDays($count)
                                     -     *       )->setEndDate(
                                     -     *         $this->getEndDate()->subDays($count)
                                     -     *       );
                                     -     *     };
                                     -     *   }
                                     -     * });
                                     -     * echo CarbonPeriod::create('2000-01-01', '2000-02-01')->addDays(5)->subDays(3);
                                     -     * ```
                                     -     *
                                     -     * @param object $mixin
                                     -     *
                                     -     * @throws \ReflectionException
                                     -     *
                                     -     * @return void
                                     -     */
                                     -    public static function mixin($mixin)
                                     -    {
                                     -        $reflection = new ReflectionClass($mixin);
+                                    -
                                     -        $methods = $reflection->getMethods(
                                     -            ReflectionMethod::IS_PUBLIC | ReflectionMethod::IS_PROTECTED
                                     -        );
+                                    -
                                     -        foreach ($methods as $method) {
                                     -            $method->setAccessible(true);
+                                    -
                                     -            static::macro($method->name, $method->invoke($mixin));
                                     -        }
                                     -    }
+                                    -
                                     -    /**
                                     -     * Check if macro is registered.
                                     -     *
                                     -     * @param string $name
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    public static function hasMacro($name)
                                     -    {
                                     -        return isset(static::$macros[$name]);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Provide static proxy for instance aliases.
                                     -     *
                                     -     * @param string $method
                                     -     * @param array  $parameters
                                     -     *
                                     -     * @return mixed
                                     -     */
                                     -    public static function __callStatic($method, $parameters)
                                     -    {
                                     -        return (new static)->$method(...$parameters);
                                     -    }
+                                    -
                                     -    /**
                                     -     * CarbonPeriod constructor.
                                     -     *
                                     -     * @SuppressWarnings(PHPMD.ElseExpression)
                                     -     *
                                     -     * @throws InvalidArgumentException
                                     -     */
                                     -    public function __construct(...$arguments)
                                     -    {
                                     -        // Parse and assign arguments one by one. First argument may be an ISO 8601 spec,
                                     -        // which will be first parsed into parts and then processed the same way.
+                                    -
                                     -        if (count($arguments) && static::isIso8601($iso = $arguments[0])) {
                                     -            array_splice($arguments, 0, 1, static::parseIso8601($iso));
                                     -        }
+                                    -
                                     -        foreach ($arguments as $argument) {
                                     -            if ($this->dateInterval === null &&
                                     -                (
                                     -                    is_string($argument) && preg_match('/^(\d.*|P[T0-9].*|(?:\h*\d+(?:\.\d+)?\h*[a-z]+)+)$/i', $argument) ||
                                     -                    $argument instanceof DateInterval
                                     -                ) &&
                                     -                $parsed = @CarbonInterval::make($argument)
                                     -            ) {
                                     -                $this->setDateInterval($parsed);
                                     -            } elseif ($this->startDate === null && $parsed = Carbon::make($argument)) {
                                     -                $this->setStartDate($parsed);
                                     -            } elseif ($this->endDate === null && $parsed = Carbon::make($argument)) {
                                     -                $this->setEndDate($parsed);
                                     -            } elseif ($this->recurrences === null && $this->endDate === null && is_numeric($argument)) {
                                     -                $this->setRecurrences($argument);
                                     -            } elseif ($this->options === null && (is_int($argument) || $argument === null)) {
                                     -                $this->setOptions($argument);
                                     -            } else {
                                     -                throw new InvalidArgumentException('Invalid constructor parameters.');
                                     -            }
                                     -        }
+                                    -
                                     -        if ($this->startDate === null) {
                                     -            $this->setStartDate(Carbon::now());
                                     -        }
+                                    -
                                     -        if ($this->dateInterval === null) {
                                     -            $this->setDateInterval(CarbonInterval::day());
+                                    -
                                     -            $this->isDefaultInterval = true;
                                     -        }
+                                    -
                                     -        if ($this->options === null) {
                                     -            $this->setOptions(0);
                                     -        }
                                     -    }
+                                    -
                                     -    /**
                                     -     * Return whether given callable is a string pointing to one of Carbon's is* methods
                                     -     * and should be automatically converted to a filter callback.
                                     -     *
                                     -     * @param callable $callable
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    protected function isCarbonPredicateMethod($callable)
                                     -    {
                                     -        return is_string($callable) && substr($callable, 0, 2) === 'is' && (method_exists($this->dateClass, $callable) || call_user_func([$this->dateClass, 'hasMacro'], $callable));
                                     -    }
+                                    -
                                     -    /**
                                     -     * Set the iteration item class.
                                     -     *
                                     -     * @param string $dateClass
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function setDateClass(string $dateClass)
                                     -    {
                                     -        if (!is_a($dateClass, CarbonInterface::class, true)) {
                                     -            throw new InvalidArgumentException(sprintf(
                                     -                'Given class does not implement %s: %s',
                                     -                CarbonInterface::class,
                                     -                $dateClass
                                     -            ));
                                     -        }
+                                    -
                                     -        $this->dateClass = $dateClass;
+                                    -
                                     -        if (is_a($dateClass, Carbon::class, true)) {
                                     -            $this->toggleOptions(static::IMMUTABLE, false);
                                     -        } elseif (is_a($dateClass, CarbonImmutable::class, true)) {
                                     -            $this->toggleOptions(static::IMMUTABLE, true);
                                     -        }
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Returns iteration item date class.
                                     -     *
                                     -     * @return string
                                     -     */
                                     -    public function getDateClass(): string
                                     -    {
                                     -        return $this->dateClass;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Change the period date interval.
                                     -     *
                                     -     * @param DateInterval|string $interval
                                     -     *
                                     -     * @throws \InvalidArgumentException
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function setDateInterval($interval)
                                     -    {
                                     -        if (!$interval = CarbonInterval::make($interval)) {
                                     -            throw new InvalidArgumentException('Invalid interval.');
                                     -        }
+                                    -
                                     -        if ($interval->spec() === 'PT0S' && !$interval->f) {
                                     -            throw new InvalidArgumentException('Empty interval is not accepted.');
                                     -        }
+                                    -
                                     -        $this->dateInterval = $interval;
+                                    -
                                     -        $this->isDefaultInterval = false;
+                                    -
                                     -        $this->handleChangedParameters();
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Invert the period date interval.
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function invertDateInterval()
                                     -    {
                                     -        $interval = $this->dateInterval->invert();
+                                    -
                                     -        return $this->setDateInterval($interval);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Set start and end date.
                                     -     *
                                     -     * @param DateTime|DateTimeInterface|string      $start
                                     -     * @param DateTime|DateTimeInterface|string|null $end
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function setDates($start, $end)
                                     -    {
                                     -        $this->setStartDate($start);
                                     -        $this->setEndDate($end);
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Change the period options.
                                     -     *
                                     -     * @param int|null $options
                                     -     *
                                     -     * @throws \InvalidArgumentException
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function setOptions($options)
                                     -    {
                                     -        if (!is_int($options) && !is_null($options)) {
                                     -            throw new InvalidArgumentException('Invalid options.');
                                     -        }
+                                    -
                                     -        $this->options = $options ?: 0;
+                                    -
                                     -        $this->handleChangedParameters();
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Get the period options.
                                     -     *
                                     -     * @return int
                                     -     */
                                     -    public function getOptions()
                                     -    {
                                     -        return $this->options;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Toggle given options on or off.
                                     -     *
                                     -     * @param int       $options
                                     -     * @param bool|null $state
                                     -     *
                                     -     * @throws \InvalidArgumentException
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function toggleOptions($options, $state = null)
                                     -    {
                                     -        if ($state === null) {
                                     -            $state = ($this->options & $options) !== $options;
                                     -        }
+                                    -
                                     -        return $this->setOptions(
                                     -            $state ?
                                     -            $this->options | $options :
                                     -            $this->options & ~$options
                                     -        );
                                     -    }
+                                    -
                                     -    /**
                                     -     * Toggle EXCLUDE_START_DATE option.
                                     -     *
                                     -     * @param bool $state
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function excludeStartDate($state = true)
                                     -    {
                                     -        return $this->toggleOptions(static::EXCLUDE_START_DATE, $state);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Toggle EXCLUDE_END_DATE option.
                                     -     *
                                     -     * @param bool $state
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function excludeEndDate($state = true)
                                     -    {
                                     -        return $this->toggleOptions(static::EXCLUDE_END_DATE, $state);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Get the underlying date interval.
                                     -     *
                                     -     * @return CarbonInterval
                                     -     */
                                     -    public function getDateInterval()
                                     -    {
                                     -        return $this->dateInterval->copy();
                                     -    }
+                                    -
                                     -    /**
                                     -     * Get start date of the period.
                                     -     *
                                     -     * @return CarbonInterface
                                     -     */
                                     -    public function getStartDate()
                                     -    {
                                     -        return $this->startDate->copy();
                                     -    }
+                                    -
                                     -    /**
                                     -     * Get end date of the period.
                                     -     *
                                     -     * @return CarbonInterface|null
                                     -     */
                                     -    public function getEndDate()
                                     -    {
                                     -        return $this->endDate ? $this->endDate->copy() : null;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Get number of recurrences.
                                     -     *
                                     -     * @return int|null
                                     -     */
                                     -    public function getRecurrences()
                                     -    {
                                     -        return $this->recurrences;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Returns true if the start date should be excluded.
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    public function isStartExcluded()
                                     -    {
                                     -        return ($this->options & static::EXCLUDE_START_DATE) !== 0;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Returns true if the end date should be excluded.
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    public function isEndExcluded()
                                     -    {
                                     -        return ($this->options & static::EXCLUDE_END_DATE) !== 0;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Add a filter to the stack.
                                     -     *
                                     -     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
                                     -     *
                                     -     * @param callable $callback
                                     -     * @param string   $name
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function addFilter($callback, $name = null)
                                     -    {
                                     -        $tuple = $this->createFilterTuple(func_get_args());
+                                    -
                                     -        $this->filters[] = $tuple;
+                                    -
                                     -        $this->handleChangedParameters();
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Prepend a filter to the stack.
                                     -     *
                                     -     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
                                     -     *
                                     -     * @param callable $callback
                                     -     * @param string   $name
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function prependFilter($callback, $name = null)
                                     -    {
                                     -        $tuple = $this->createFilterTuple(func_get_args());
+                                    -
                                     -        array_unshift($this->filters, $tuple);
+                                    -
                                     -        $this->handleChangedParameters();
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Create a filter tuple from raw parameters.
                                     -     *
                                     -     * Will create an automatic filter callback for one of Carbon's is* methods.
                                     -     *
                                     -     * @param array $parameters
                                     -     *
                                     -     * @return array
                                     -     */
                                     -    protected function createFilterTuple(array $parameters)
                                     -    {
                                     -        $method = array_shift($parameters);
+                                    -
                                     -        if (!$this->isCarbonPredicateMethod($method)) {
                                     -            return [$method, array_shift($parameters)];
                                     -        }
+                                    -
                                     -        return [function ($date) use ($method, $parameters) {
                                     -            return call_user_func_array([$date, $method], $parameters);
                                     -        }, $method];
                                     -    }
+                                    -
                                     -    /**
                                     -     * Remove a filter by instance or name.
                                     -     *
                                     -     * @param callable|string $filter
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function removeFilter($filter)
                                     -    {
                                     -        $key = is_callable($filter) ? 0 : 1;
+                                    -
                                     -        $this->filters = array_values(array_filter(
                                     -            $this->filters,
                                     -            function ($tuple) use ($key, $filter) {
                                     -                return $tuple[$key] !== $filter;
                                     -            }
                                     -        ));
+                                    -
                                     -        $this->updateInternalState();
+                                    -
                                     -        $this->handleChangedParameters();
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Return whether given instance or name is in the filter stack.
                                     -     *
                                     -     * @param callable|string $filter
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    public function hasFilter($filter)
                                     -    {
                                     -        $key = is_callable($filter) ? 0 : 1;
+                                    -
                                     -        foreach ($this->filters as $tuple) {
                                     -            if ($tuple[$key] === $filter) {
                                     -                return true;
                                     -            }
                                     -        }
+                                    -
                                     -        return false;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Get filters stack.
                                     -     *
                                     -     * @return array
                                     -     */
                                     -    public function getFilters()
                                     -    {
                                     -        return $this->filters;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Set filters stack.
                                     -     *
                                     -     * @param array $filters
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function setFilters(array $filters)
                                     -    {
                                     -        $this->filters = $filters;
+                                    -
                                     -        $this->updateInternalState();
+                                    -
                                     -        $this->handleChangedParameters();
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Reset filters stack.
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function resetFilters()
                                     -    {
                                     -        $this->filters = [];
+                                    -
                                     -        if ($this->endDate !== null) {
                                     -            $this->filters[] = [static::END_DATE_FILTER, null];
                                     -        }
+                                    -
                                     -        if ($this->recurrences !== null) {
                                     -            $this->filters[] = [static::RECURRENCES_FILTER, null];
                                     -        }
+                                    -
                                     -        $this->handleChangedParameters();
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Update properties after removing built-in filters.
                                     -     *
                                     -     * @return void
                                     -     */
                                     -    protected function updateInternalState()
                                     -    {
                                     -        if (!$this->hasFilter(static::END_DATE_FILTER)) {
                                     -            $this->endDate = null;
                                     -        }
+                                    -
                                     -        if (!$this->hasFilter(static::RECURRENCES_FILTER)) {
                                     -            $this->recurrences = null;
                                     -        }
                                     -    }
+                                    -
                                     -    /**
                                     -     * Add a recurrences filter (set maximum number of recurrences).
                                     -     *
                                     -     * @param int|null $recurrences
                                     -     *
                                     -     * @throws \InvalidArgumentException
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function setRecurrences($recurrences)
                                     -    {
                                     -        if (!is_numeric($recurrences) && !is_null($recurrences) || $recurrences < 0) {
                                     -            throw new InvalidArgumentException('Invalid number of recurrences.');
                                     -        }
+                                    -
                                     -        if ($recurrences === null) {
                                     -            return $this->removeFilter(static::RECURRENCES_FILTER);
                                     -        }
+                                    -
                                     -        $this->recurrences = (int) $recurrences;
+                                    -
                                     -        if (!$this->hasFilter(static::RECURRENCES_FILTER)) {
                                     -            return $this->addFilter(static::RECURRENCES_FILTER);
                                     -        }
+                                    -
                                     -        $this->handleChangedParameters();
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Recurrences filter callback (limits number of recurrences).
                                     -     *
                                     -     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
                                     -     *
                                     -     * @param \Carbon\Carbon $current
                                     -     * @param int            $key
                                     -     *
                                     -     * @return bool|string
                                     -     */
                                     -    protected function filterRecurrences($current, $key)
                                     -    {
                                     -        if ($key < $this->recurrences) {
                                     -            return true;
                                     -        }
+                                    -
                                     -        return static::END_ITERATION;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Change the period start date.
                                     -     *
                                     -     * @param DateTime|DateTimeInterface|string $date
                                     -     * @param bool|null                         $inclusive
                                     -     *
                                     -     * @throws \InvalidArgumentException
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function setStartDate($date, $inclusive = null)
                                     -    {
                                     -        if (!$date = call_user_func([$this->dateClass, 'make'], $date)) {
                                     -            throw new InvalidArgumentException('Invalid start date.');
                                     -        }
+                                    -
                                     -        $this->startDate = $date;
+                                    -
                                     -        if ($inclusive !== null) {
                                     -            $this->toggleOptions(static::EXCLUDE_START_DATE, !$inclusive);
                                     -        }
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Change the period end date.
                                     -     *
                                     -     * @param DateTime|DateTimeInterface|string|null $date
                                     -     * @param bool|null                              $inclusive
                                     -     *
                                     -     * @throws \InvalidArgumentException
                                     -     *
                                     -     * @return $this
                                     -     */
                                     -    public function setEndDate($date, $inclusive = null)
                                     -    {
                                     -        if (!is_null($date) && !$date = call_user_func([$this->dateClass, 'make'], $date)) {
                                     -            throw new InvalidArgumentException('Invalid end date.');
                                     -        }
+                                    -
                                     -        if (!$date) {
                                     -            return $this->removeFilter(static::END_DATE_FILTER);
                                     -        }
+                                    -
                                     -        $this->endDate = $date;
+                                    -
                                     -        if ($inclusive !== null) {
                                     -            $this->toggleOptions(static::EXCLUDE_END_DATE, !$inclusive);
                                     -        }
+                                    -
                                     -        if (!$this->hasFilter(static::END_DATE_FILTER)) {
                                     -            return $this->addFilter(static::END_DATE_FILTER);
                                     -        }
+                                    -
                                     -        $this->handleChangedParameters();
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * End date filter callback.
                                     -     *
                                     -     * @param \Carbon\Carbon $current
                                     -     *
                                     -     * @return bool|string
                                     -     */
                                     -    protected function filterEndDate($current)
                                     -    {
                                     -        if (!$this->isEndExcluded() && $current == $this->endDate) {
                                     -            return true;
                                     -        }
+                                    -
                                     -        if ($this->dateInterval->invert ? $current > $this->endDate : $current < $this->endDate) {
                                     -            return true;
                                     -        }
+                                    -
                                     -        return static::END_ITERATION;
                                     -    }
+                                    -
                                     -    /**
                                     -     * End iteration filter callback.
                                     -     *
                                     -     * @return string
                                     -     */
                                     -    protected function endIteration()
                                     -    {
                                     -        return static::END_ITERATION;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Handle change of the parameters.
                                     -     */
                                     -    protected function handleChangedParameters()
                                     -    {
                                     -        if (($this->getOptions() & static::IMMUTABLE) && $this->dateClass === Carbon::class) {
                                     -            $this->setDateClass(CarbonImmutable::class);
                                     -        } elseif (!($this->getOptions() & static::IMMUTABLE) && $this->dateClass === CarbonImmutable::class) {
                                     -            $this->setDateClass(Carbon::class);
                                     -        }
+                                    -
                                     -        $this->validationResult = null;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Validate current date and stop iteration when necessary.
                                     -     *
                                     -     * Returns true when current date is valid, false if it is not, or static::END_ITERATION
                                     -     * when iteration should be stopped.
                                     -     *
                                     -     * @return bool|string
                                     -     */
                                     -    protected function validateCurrentDate()
                                     -    {
                                     -        if ($this->current === null) {
                                     -            $this->rewind();
                                     -        }
+                                    -
                                     -        // Check after the first rewind to avoid repeating the initial validation.
                                     -        if ($this->validationResult !== null) {
                                     -            return $this->validationResult;
                                     -        }
+                                    -
                                     -        return $this->validationResult = $this->checkFilters();
                                     -    }
+                                    -
                                     -    /**
                                     -     * Check whether current value and key pass all the filters.
                                     -     *
                                     -     * @return bool|string
                                     -     */
                                     -    protected function checkFilters()
                                     -    {
                                     -        $current = $this->prepareForReturn($this->current);
+                                    -
                                     -        foreach ($this->filters as $tuple) {
                                     -            $result = call_user_func(
                                     -                $tuple[0],
                                     -                $current->copy(),
                                     -                $this->key,
                                     -                $this
                                     -            );
+                                    -
                                     -            if ($result === static::END_ITERATION) {
                                     -                return static::END_ITERATION;
                                     -            }
+                                    -
                                     -            if (!$result) {
                                     -                return false;
                                     -            }
                                     -        }
+                                    -
                                     -        return true;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Prepare given date to be returned to the external logic.
                                     -     *
                                     -     * @param CarbonInterface $date
                                     -     *
                                     -     * @return CarbonInterface
                                     -     */
                                     -    protected function prepareForReturn(CarbonInterface $date)
                                     -    {
                                     -        $date = call_user_func([$this->dateClass, 'make'], $date);
+                                    -
                                     -        if ($this->timezone) {
                                     -            $date = $date->setTimezone($this->timezone);
                                     -        }
+                                    -
                                     -        return $date;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Check if the current position is valid.
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    public function valid()
                                     -    {
                                     -        return $this->validateCurrentDate() === true;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Return the current key.
                                     -     *
                                     -     * @return int|null
                                     -     */
                                     -    public function key()
                                     -    {
                                     -        if ($this->valid()) {
                                     -            return $this->key;
                                     -        }
                                     -    }
+                                    -
                                     -    /**
                                     -     * Return the current date.
                                     -     *
                                     -     * @return CarbonInterface|null
                                     -     */
                                     -    public function current()
                                     -    {
                                     -        if ($this->valid()) {
                                     -            return $this->prepareForReturn($this->current);
                                     -        }
                                     -    }
+                                    -
                                     -    /**
                                     -     * Move forward to the next date.
                                     -     *
                                     -     * @throws \RuntimeException
                                     -     *
                                     -     * @return void
                                     -     */
                                     -    public function next()
                                     -    {
                                     -        if ($this->current === null) {
                                     -            $this->rewind();
                                     -        }
+                                    -
                                     -        if ($this->validationResult !== static::END_ITERATION) {
                                     -            $this->key++;
+                                    -
                                     -            $this->incrementCurrentDateUntilValid();
                                     -        }
                                     -    }
+                                    -
                                     -    /**
                                     -     * Rewind to the start date.
                                     -     *
                                     -     * Iterating over a date in the UTC timezone avoids bug during backward DST change.
                                     -     *
                                     -     * @see https://bugs.php.net/bug.php?id=72255
                                     -     * @see https://bugs.php.net/bug.php?id=74274
                                     -     * @see https://wiki.php.net/rfc/datetime_and_daylight_saving_time
                                     -     *
                                     -     * @throws \RuntimeException
                                     -     *
                                     -     * @return void
                                     -     */
                                     -    public function rewind()
                                     -    {
                                     -        $this->key = 0;
                                     -        $this->current = call_user_func([$this->dateClass, 'make'], $this->startDate);
                                     -        $settings = $this->getSettings();
                                     -        $locale = $this->getLocalTranslator()->getLocale();
                                     -        if ($locale) {
                                     -            $settings['locale'] = $locale;
                                     -        }
                                     -        $this->current->settings($settings);
                                     -        $this->timezone = static::intervalHasTime($this->dateInterval) ? $this->current->getTimezone() : null;
+                                    -
                                     -        if ($this->timezone) {
                                     -            $this->current = $this->current->utc();
                                     -        }
+                                    -
                                     -        $this->validationResult = null;
+                                    -
                                     -        if ($this->isStartExcluded() || $this->validateCurrentDate() === false) {
                                     -            $this->incrementCurrentDateUntilValid();
                                     -        }
                                     -    }
+                                    -
                                     -    /**
                                     -     * Skip iterations and returns iteration state (false if ended, true if still valid).
                                     -     *
                                     -     * @param int $count steps number to skip (1 by default)
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    public function skip($count = 1)
                                     -    {
                                     -        for ($i = $count; $this->valid() && $i > 0; $i--) {
                                     -            $this->next();
                                     -        }
+                                    -
                                     -        return $this->valid();
                                     -    }
+                                    -
                                     -    /**
                                     -     * Keep incrementing the current date until a valid date is found or the iteration is ended.
                                     -     *
                                     -     * @throws \RuntimeException
                                     -     *
                                     -     * @return void
                                     -     */
                                     -    protected function incrementCurrentDateUntilValid()
                                     -    {
                                     -        $attempts = 0;
+                                    -
                                     -        do {
                                     -            $this->current = $this->current->add($this->dateInterval);
+                                    -
                                     -            $this->validationResult = null;
+                                    -
                                     -            if (++$attempts > static::NEXT_MAX_ATTEMPTS) {
                                     -                throw new RuntimeException('Could not find next valid date.');
                                     -            }
                                     -        } while ($this->validateCurrentDate() === false);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Format the date period as ISO 8601.
                                     -     *
                                     -     * @return string
                                     -     */
                                     -    public function toIso8601String()
                                     -    {
                                     -        $parts = [];
+                                    -
                                     -        if ($this->recurrences !== null) {
                                     -            $parts[] = 'R'.$this->recurrences;
                                     -        }
+                                    -
                                     -        $parts[] = $this->startDate->toIso8601String();
+                                    -
                                     -        $parts[] = $this->dateInterval->spec();
+                                    -
                                     -        if ($this->endDate !== null) {
                                     -            $parts[] = $this->endDate->toIso8601String();
                                     -        }
+                                    -
                                     -        return implode('/', $parts);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Convert the date period into a string.
                                     -     *
                                     -     * @return string
                                     -     */
                                     -    public function toString()
                                     -    {
                                     -        $translator = call_user_func([$this->dateClass, 'getTranslator']);
+                                    -
                                     -        $parts = [];
+                                    -
                                     -        $format = !$this->startDate->isStartOfDay() || $this->endDate && !$this->endDate->isStartOfDay()
                                     -            ? 'Y-m-d H:i:s'
                                     -            : 'Y-m-d';
+                                    -
                                     -        if ($this->recurrences !== null) {
                                     -            $parts[] = $this->translate('period_recurrences', [], $this->recurrences, $translator);
                                     -        }
+                                    -
                                     -        $parts[] = $this->translate('period_interval', [':interval' => $this->dateInterval->forHumans([
                                     -            'join' => true,
                                     -        ])], null, $translator);
+                                    -
                                     -        $parts[] = $this->translate('period_start_date', [':date' => $this->startDate->rawFormat($format)], null, $translator);
+                                    -
                                     -        if ($this->endDate !== null) {
                                     -            $parts[] = $this->translate('period_end_date', [':date' => $this->endDate->rawFormat($format)], null, $translator);
                                     -        }
+                                    -
                                     -        $result = implode(' ', $parts);
+                                    -
                                     -        return mb_strtoupper(mb_substr($result, 0, 1)).mb_substr($result, 1);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Format the date period as ISO 8601.
                                     -     *
                                     -     * @return string
                                     -     */
                                     -    public function spec()
                                     -    {
                                     -        return $this->toIso8601String();
                                     -    }
+                                    -
                                     -    /**
                                     -     * Convert the date period into an array without changing current iteration state.
                                     -     *
                                     -     * @return array
                                     -     */
                                     -    public function toArray()
                                     -    {
                                     -        $state = [
                                     -            $this->key,
                                     -            $this->current ? $this->current->copy() : null,
                                     -            $this->validationResult,
                                     -        ];
+                                    -
                                     -        $result = iterator_to_array($this);
+                                    -
                                     -        [
                                     -            $this->key,
                                     -            $this->current,
                                     -            $this->validationResult
                                     -        ] = $state;
+                                    -
                                     -        return $result;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Count dates in the date period.
                                     -     *
                                     -     * @return int
                                     -     */
                                     -    public function count()
                                     -    {
                                     -        return count($this->toArray());
                                     -    }
+                                    -
                                     -    /**
                                     -     * Return the first date in the date period.
                                     -     *
                                     -     * @return CarbonInterface|null
                                     -     */
                                     -    public function first()
                                     -    {
                                     -        if ($array = $this->toArray()) {
                                     -            return $array[0];
                                     -        }
                                     -    }
+                                    -
                                     -    /**
                                     -     * Return the last date in the date period.
                                     -     *
                                     -     * @return CarbonInterface|null
                                     -     */
                                     -    public function last()
                                     -    {
                                     -        if ($array = $this->toArray()) {
                                     -            return $array[count($array) - 1];
                                     -        }
                                     -    }
+                                    -
                                     -    /**
                                     -     * Call given macro.
                                     -     *
                                     -     * @param string $name
                                     -     * @param array  $parameters
                                     -     *
                                     -     * @return mixed
                                     -     */
                                     -    protected function callMacro($name, $parameters)
                                     -    {
                                     -        $macro = static::$macros[$name];
+                                    -
                                     -        if ($macro instanceof Closure) {
                                     -            return call_user_func_array($macro->bindTo($this, static::class), $parameters);
                                     -        }
+                                    -
                                     -        return call_user_func_array($macro, $parameters);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Convert the date period into a string.
                                     -     *
                                     -     * @return string
                                     -     */
                                     -    public function __toString()
                                     -    {
                                     -        return $this->toString();
                                     -    }
+                                    -
                                     -    /**
                                     -     * Add aliases for setters.
                                     -     *
                                     -     * CarbonPeriod::days(3)->hours(5)->invert()
                                     -     *     ->sinceNow()->until('2010-01-10')
                                     -     *     ->filter(...)
                                     -     *     ->count()
                                     -     *
                                     -     * Note: We use magic method to let static and instance aliases with the same names.
                                     -     *
                                     -     * @param string $method
                                     -     * @param array  $parameters
                                     -     *
                                     -     * @return mixed
                                     -     */
                                     -    public function __call($method, $parameters)
                                     -    {
                                     -        if (static::hasMacro($method)) {
                                     -            return $this->callMacro($method, $parameters);
                                     -        }
+                                    -
                                     -        $first = count($parameters) >= 1 ? $parameters[0] : null;
                                     -        $second = count($parameters) >= 2 ? $parameters[1] : null;
+                                    -
                                     -        switch ($method) {
                                     -            case 'start':
                                     -            case 'since':
                                     -                return $this->setStartDate($first, $second);
+                                    -
                                     -            case 'sinceNow':
                                     -                return $this->setStartDate(new Carbon, $first);
+                                    -
                                     -            case 'end':
                                     -            case 'until':
                                     -                return $this->setEndDate($first, $second);
+                                    -
                                     -            case 'untilNow':
                                     -                return $this->setEndDate(new Carbon, $first);
+                                    -
                                     -            case 'dates':
                                     -            case 'between':
                                     -                return $this->setDates($first, $second);
+                                    -
                                     -            case 'recurrences':
                                     -            case 'times':
                                     -                return $this->setRecurrences($first);
+                                    -
                                     -            case 'options':
                                     -                return $this->setOptions($first);
+                                    -
                                     -            case 'toggle':
                                     -                return $this->toggleOptions($first, $second);
+                                    -
                                     -            case 'filter':
                                     -            case 'push':
                                     -                return $this->addFilter($first, $second);
+                                    -
                                     -            case 'prepend':
                                     -                return $this->prependFilter($first, $second);
+                                    -
                                     -            case 'filters':
                                     -                return $this->setFilters($first ?: []);
+                                    -
                                     -            case 'interval':
                                     -            case 'each':
                                     -            case 'every':
                                     -            case 'step':
                                     -            case 'stepBy':
                                     -                return $this->setDateInterval($first);
+                                    -
                                     -            case 'invert':
                                     -                return $this->invertDateInterval();
+                                    -
                                     -            case 'years':
                                     -            case 'year':
                                     -            case 'months':
                                     -            case 'month':
                                     -            case 'weeks':
                                     -            case 'week':
                                     -            case 'days':
                                     -            case 'dayz':
                                     -            case 'day':
                                     -            case 'hours':
                                     -            case 'hour':
                                     -            case 'minutes':
                                     -            case 'minute':
                                     -            case 'seconds':
                                     -            case 'second':
                                     -                return $this->setDateInterval(call_user_func(
                                     -                    // Override default P1D when instantiating via fluent setters.
                                     -                    [$this->isDefaultInterval ? new CarbonInterval('PT0S') : $this->dateInterval, $method],
                                     -                    count($parameters) === 0 ? 1 : $first
                                     -                ));
                                     -        }
+                                    -
                                     -        if ($this->localStrictModeEnabled ?? Carbon::isStrictModeEnabled()) {
                                     -            throw new BadMethodCallException("Method $method does not exist.");
                                     -        }
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Set the instance's timezone from a string or object and add/subtract the offset difference.
                                     -     *
                                     -     * @param \DateTimeZone|string $timezone
                                     -     *
                                     -     * @return static
                                     -     */
                                     -    public function shiftTimezone($timezone)
                                     -    {
                                     -        $this->tzName = $timezone;
                                     -        $this->timezone = $timezone;
+                                    -
                                     -        return $this;
                                     -    }
+                                    -
                                     -    /**
                                     -     * Returns the end is set, else calculated from start an recurrences.
                                     -     *
                                     -     * @return CarbonInterface
                                     -     */
                                     -    public function calculateEnd()
                                     -    {
                                     -        if ($end = $this->getEndDate()) {
                                     -            return $end;
                                     -        }
+                                    -
                                     -        $dates = iterator_to_array($this);
+                                    -
                                     -        return end($dates);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Returns true if the current period overlaps the given one (if 1 parameter passed)
                                     -     * or the period between 2 dates (if 2 parameters passed).
                                     -     *
                                     -     * @param CarbonPeriod|\DateTimeInterface|Carbon|CarbonImmutable|string $rangeOrRangeStart
                                     -     * @param \DateTimeInterface|Carbon|CarbonImmutable|string|null         $rangeEnd
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    public function overlaps($rangeOrRangeStart, $rangeEnd = null)
                                     -    {
                                     -        $range = $rangeEnd ? static::create($rangeOrRangeStart, $rangeEnd) : $rangeOrRangeStart;
+                                    -
                                     -        if (!($range instanceof self)) {
                                     -            $range = static::create($range);
                                     -        }
+                                    -
                                     -        return $this->calculateEnd() > $range->getStartDate() && $range->calculateEnd() > $this->getStartDate();
                                     -    }
+                                    -
                                     -    /**
                                     -     * Execute a given function on each date of the period.
                                     -     *
                                     -     * @example
                                     -     * ```
                                     -     * Carbon::create('2020-11-29')->daysUntil('2020-12-24')->forEach(function (Carbon $date) {
                                     -     *   echo $date->diffInDays('2020-12-25')." days before Christmas!\n";
                                     -     * });
                                     -     * ```
                                     -     *
                                     -     * @param callable $callback
                                     -     */
                                     -    public function forEach(callable $callback)
                                     -    {
                                     -        foreach ($this as $date) {
                                     -            $callback($date);
                                     -        }
                                     -    }
+                                    -
                                     -    /**
                                     -     * Execute a given function on each date of the period and yield the result of this function.
                                     -     *
                                     -     * @example
                                     -     * ```
                                     -     * $period = Carbon::create('2020-11-29')->daysUntil('2020-12-24');
                                     -     * echo implode("\n", iterator_to_array($period->map(function (Carbon $date) {
                                     -     *   return $date->diffInDays('2020-12-25').' days before Christmas!';
                                     -     * })));
                                     -     * ```
                                     -     *
                                     -     * @param callable $callback
                                     -     *
                                     -     * @return \Generator
                                     -     */
                                     -    public function map(callable $callback)
                                     -    {
                                     -        foreach ($this as $date) {
                                     -            yield $callback($date);
                                     -        }
                                     -    }
+                                    -
                                     -    /**
                                     -     * Determines if the instance is equal to another
                                     -     *
                                     -     * @param mixed $period
                                     -     *
                                     -     * @see equalTo()
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    public function eq($period): bool
                                     -    {
                                     -        return $this->equalTo($period);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Determines if the instance is equal to another
                                     -     *
                                     -     * @param mixed $period
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    public function equalTo($period): bool
                                     -    {
                                     -        if (!($period instanceof self)) {
                                     -            $period = self::make($period);
                                     -        }
+                                    -
                                     -        return $period !== null
                                     -            && $this->getDateInterval()->eq($period->getDateInterval())
                                     -            && $this->getStartDate()->eq($period->getStartDate())
                                     -            && $this->getEndDate()->eq($period->getEndDate())
                                     -            && $this->getOptions() === $period->getOptions();
                                     -    }
+                                    -
                                     -    /**
                                     -     * Determines if the instance is not equal to another
                                     -     *
                                     -     * @param mixed $period
                                     -     *
                                     -     * @see notEqualTo()
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    public function ne($period): bool
                                     -    {
                                     -        return $this->notEqualTo($period);
                                     -    }
+                                    -
                                     -    /**
                                     -     * Determines if the instance is not equal to another
                                     -     *
                                     -     * @param mixed $period
                                     -     *
                                     -     * @return bool
                                     -     */
                                     -    public function notEqualTo($period): bool
                                     -    {
                                     -        return !$this->eq($period);
                                     -    }
                                     -}

Browse code

initial commit

Emmanuel ROY authored on 09/08/2019 08:39:02
Showing 1 changed files

vendor/nesbot/carbon/src/Carbon/CarbonPeriod.php

History View file @ 4f5a31d

                                     new file mode 100644
@@ -0,0 +1,1765 @@
                                     +<?php
+                                    +
                                     +/**
                                     + * This file is part of the Carbon package.
                                     + *
                                     + * (c) Brian Nesbitt <brian@nesbot.com>
                                     + *
                                     + * For the full copyright and license information, please view the LICENSE
                                     + * file that was distributed with this source code.
                                     + */
                                     +namespace Carbon;
+                                    +
                                     +use BadMethodCallException;
                                     +use Carbon\Exceptions\NotAPeriodException;
                                     +use Carbon\Traits\Options;
                                     +use Closure;
                                     +use Countable;
                                     +use DateInterval;
                                     +use DatePeriod;
                                     +use DateTime;
                                     +use DateTimeInterface;
                                     +use InvalidArgumentException;
                                     +use Iterator;
                                     +use ReflectionClass;
                                     +use ReflectionMethod;
                                     +use RuntimeException;
+                                    +
                                     +/**
                                     + * Substitution of DatePeriod with some modifications and many more features.
                                     + *
                                     + * @method static CarbonPeriod start($date, $inclusive = null) Create instance specifying start date.
                                     + * @method static CarbonPeriod since($date, $inclusive = null) Alias for start().
                                     + * @method static CarbonPeriod sinceNow($inclusive = null) Create instance with start date set to now.
                                     + * @method static CarbonPeriod end($date = null, $inclusive = null) Create instance specifying end date.
                                     + * @method static CarbonPeriod until($date = null, $inclusive = null) Alias for end().
                                     + * @method static CarbonPeriod untilNow($inclusive = null) Create instance with end date set to now.
                                     + * @method static CarbonPeriod dates($start, $end = null) Create instance with start and end date.
                                     + * @method static CarbonPeriod between($start, $end = null) Create instance with start and end date.
                                     + * @method static CarbonPeriod recurrences($recurrences = null) Create instance with maximum number of recurrences.
                                     + * @method static CarbonPeriod times($recurrences = null) Alias for recurrences().
                                     + * @method static CarbonPeriod options($options = null) Create instance with options.
                                     + * @method static CarbonPeriod toggle($options, $state = null) Create instance with options toggled on or off.
                                     + * @method static CarbonPeriod filter($callback, $name = null) Create instance with filter added to the stack.
                                     + * @method static CarbonPeriod push($callback, $name = null) Alias for filter().
                                     + * @method static CarbonPeriod prepend($callback, $name = null) Create instance with filter prepened to the stack.
                                     + * @method static CarbonPeriod filters(array $filters) Create instance with filters stack.
                                     + * @method static CarbonPeriod interval($interval) Create instance with given date interval.
                                     + * @method static CarbonPeriod each($interval) Create instance with given date interval.
                                     + * @method static CarbonPeriod every($interval) Create instance with given date interval.
                                     + * @method static CarbonPeriod step($interval) Create instance with given date interval.
                                     + * @method static CarbonPeriod stepBy($interval) Create instance with given date interval.
                                     + * @method static CarbonPeriod invert() Create instance with inverted date interval.
                                     + * @method static CarbonPeriod years($years = 1) Create instance specifying a number of years for date interval.
                                     + * @method static CarbonPeriod year($years = 1) Alias for years().
                                     + * @method static CarbonPeriod months($months = 1) Create instance specifying a number of months for date interval.
                                     + * @method static CarbonPeriod month($months = 1) Alias for months().
                                     + * @method static CarbonPeriod weeks($weeks = 1) Create instance specifying a number of weeks for date interval.
                                     + * @method static CarbonPeriod week($weeks = 1) Alias for weeks().
                                     + * @method static CarbonPeriod days($days = 1) Create instance specifying a number of days for date interval.
                                     + * @method static CarbonPeriod dayz($days = 1) Alias for days().
                                     + * @method static CarbonPeriod day($days = 1) Alias for days().
                                     + * @method static CarbonPeriod hours($hours = 1) Create instance specifying a number of hours for date interval.
                                     + * @method static CarbonPeriod hour($hours = 1) Alias for hours().
                                     + * @method static CarbonPeriod minutes($minutes = 1) Create instance specifying a number of minutes for date interval.
                                     + * @method static CarbonPeriod minute($minutes = 1) Alias for minutes().
                                     + * @method static CarbonPeriod seconds($seconds = 1) Create instance specifying a number of seconds for date interval.
                                     + * @method static CarbonPeriod second($seconds = 1) Alias for seconds().
                                     + * @method CarbonPeriod start($date, $inclusive = null) Change the period start date.
                                     + * @method CarbonPeriod since($date, $inclusive = null) Alias for start().
                                     + * @method CarbonPeriod sinceNow($inclusive = null) Change the period start date to now.
                                     + * @method CarbonPeriod end($date = null, $inclusive = null) Change the period end date.
                                     + * @method CarbonPeriod until($date = null, $inclusive = null) Alias for end().
                                     + * @method CarbonPeriod untilNow($inclusive = null) Change the period end date to now.
                                     + * @method CarbonPeriod dates($start, $end = null) Change the period start and end date.
                                     + * @method CarbonPeriod recurrences($recurrences = null) Change the maximum number of recurrences.
                                     + * @method CarbonPeriod times($recurrences = null) Alias for recurrences().
                                     + * @method CarbonPeriod options($options = null) Change the period options.
                                     + * @method CarbonPeriod toggle($options, $state = null) Toggle given options on or off.
                                     + * @method CarbonPeriod filter($callback, $name = null) Add a filter to the stack.
                                     + * @method CarbonPeriod push($callback, $name = null) Alias for filter().
                                     + * @method CarbonPeriod prepend($callback, $name = null) Prepend a filter to the stack.
                                     + * @method CarbonPeriod filters(array $filters = []) Set filters stack.
                                     + * @method CarbonPeriod interval($interval) Change the period date interval.
                                     + * @method CarbonPeriod invert() Invert the period date interval.
                                     + * @method CarbonPeriod years($years = 1) Set the years portion of the date interval.
                                     + * @method CarbonPeriod year($years = 1) Alias for years().
                                     + * @method CarbonPeriod months($months = 1) Set the months portion of the date interval.
                                     + * @method CarbonPeriod month($months = 1) Alias for months().
                                     + * @method CarbonPeriod weeks($weeks = 1) Set the weeks portion of the date interval.
                                     + * @method CarbonPeriod week($weeks = 1) Alias for weeks().
                                     + * @method CarbonPeriod days($days = 1) Set the days portion of the date interval.
                                     + * @method CarbonPeriod dayz($days = 1) Alias for days().
                                     + * @method CarbonPeriod day($days = 1) Alias for days().
                                     + * @method CarbonPeriod hours($hours = 1) Set the hours portion of the date interval.
                                     + * @method CarbonPeriod hour($hours = 1) Alias for hours().
                                     + * @method CarbonPeriod minutes($minutes = 1) Set the minutes portion of the date interval.
                                     + * @method CarbonPeriod minute($minutes = 1) Alias for minutes().
                                     + * @method CarbonPeriod seconds($seconds = 1) Set the seconds portion of the date interval.
                                     + * @method CarbonPeriod second($seconds = 1) Alias for seconds().
                                     + */
                                     +class CarbonPeriod implements Iterator, Countable
                                     +{
                                     +    use Options;
+                                    +
                                     +    /**
                                     +     * Built-in filters.
                                     +     *
                                     +     * @var string
                                     +     */
                                     +    const RECURRENCES_FILTER = 'Carbon\CarbonPeriod::filterRecurrences';
                                     +    const END_DATE_FILTER = 'Carbon\CarbonPeriod::filterEndDate';
+                                    +
                                     +    /**
                                     +     * Special value which can be returned by filters to end iteration. Also a filter.
                                     +     *
                                     +     * @var string
                                     +     */
                                     +    const END_ITERATION = 'Carbon\CarbonPeriod::endIteration';
+                                    +
                                     +    /**
                                     +     * Available options.
                                     +     *
                                     +     * @var int
                                     +     */
                                     +    const EXCLUDE_START_DATE = 1;
                                     +    const EXCLUDE_END_DATE = 2;
                                     +    const IMMUTABLE = 4;
+                                    +
                                     +    /**
                                     +     * Number of maximum attempts before giving up on finding next valid date.
                                     +     *
                                     +     * @var int
                                     +     */
                                     +    const NEXT_MAX_ATTEMPTS = 1000;
+                                    +
                                     +    /**
                                     +     * The registered macros.
                                     +     *
                                     +     * @var array
                                     +     */
                                     +    protected static $macros = [];
+                                    +
                                     +    /**
                                     +     * Date class of iteration items.
                                     +     *
                                     +     * @var string
                                     +     */
                                     +    protected $dateClass = Carbon::class;
+                                    +
                                     +    /**
                                     +     * Underlying date interval instance. Always present, one day by default.
                                     +     *
                                     +     * @var CarbonInterval
                                     +     */
                                     +    protected $dateInterval;
+                                    +
                                     +    /**
                                     +     * Whether current date interval was set by default.
                                     +     *
                                     +     * @var bool
                                     +     */
                                     +    protected $isDefaultInterval;
+                                    +
                                     +    /**
                                     +     * The filters stack.
                                     +     *
                                     +     * @var array
                                     +     */
                                     +    protected $filters = [];
+                                    +
                                     +    /**
                                     +     * Period start date. Applied on rewind. Always present, now by default.
                                     +     *
                                     +     * @var CarbonInterface
                                     +     */
                                     +    protected $startDate;
+                                    +
                                     +    /**
                                     +     * Period end date. For inverted interval should be before the start date. Applied via a filter.
                                     +     *
                                     +     * @var CarbonInterface|null
                                     +     */
                                     +    protected $endDate;
+                                    +
                                     +    /**
                                     +     * Limit for number of recurrences. Applied via a filter.
                                     +     *
                                     +     * @var int|null
                                     +     */
                                     +    protected $recurrences;
+                                    +
                                     +    /**
                                     +     * Iteration options.
                                     +     *
                                     +     * @var int
                                     +     */
                                     +    protected $options;
+                                    +
                                     +    /**
                                     +     * Index of current date. Always sequential, even if some dates are skipped by filters.
                                     +     * Equal to null only before the first iteration.
                                     +     *
                                     +     * @var int
                                     +     */
                                     +    protected $key;
+                                    +
                                     +    /**
                                     +     * Current date. May temporarily hold unaccepted value when looking for a next valid date.
                                     +     * Equal to null only before the first iteration.
                                     +     *
                                     +     * @var CarbonInterface
                                     +     */
                                     +    protected $current;
+                                    +
                                     +    /**
                                     +     * Timezone of current date. Taken from the start date.
                                     +     *
                                     +     * @var \DateTimeZone|null
                                     +     */
                                     +    protected $timezone;
+                                    +
                                     +    /**
                                     +     * The cached validation result for current date.
                                     +     *
                                     +     * @var bool|string|null
                                     +     */
                                     +    protected $validationResult;
+                                    +
                                     +    /**
                                     +     * Timezone handler for settings() method.
                                     +     *
                                     +     * @var mixed
                                     +     */
                                     +    protected $tzName;
+                                    +
                                     +    /**
                                     +     * Make a CarbonPeriod instance from given variable if possible.
                                     +     *
                                     +     * @param mixed $var
                                     +     *
                                     +     * @return static|null
                                     +     */
                                     +    public static function make($var)
                                     +    {
                                     +        try {
                                     +            return static::instance($var);
                                     +        } catch (NotAPeriodException $e) {
                                     +            return static::create($var);
                                     +        }
                                     +    }
+                                    +
                                     +    /**
                                     +     * Create a new instance from a DatePeriod or CarbonPeriod object.
                                     +     *
                                     +     * @param CarbonPeriod|DatePeriod $period
                                     +     *
                                     +     * @return static
                                     +     */
                                     +    public static function instance($period)
                                     +    {
                                     +        if ($period instanceof self) {
                                     +            return $period->copy();
                                     +        }
+                                    +
                                     +        if ($period instanceof DatePeriod) {
                                     +            return new static(
                                     +                $period->start,
                                     +                $period->end ?: $period->recurrences,
                                     +                $period->interval,
                                     +                $period->include_start_date ? 0 : static::EXCLUDE_START_DATE
                                     +            );
                                     +        }
+                                    +
                                     +        $class = get_called_class();
                                     +        $type = gettype($period);
+                                    +
                                     +        throw new NotAPeriodException(
                                     +            'Argument 1 passed to '.$class.'::'.__METHOD__.'() '.
                                     +            'must be an instance of DatePeriod or '.$class.', '.
                                     +            ($type === 'object' ? 'instance of '.get_class($period) : $type).' given.'
                                     +        );
                                     +    }
+                                    +
                                     +    /**
                                     +     * Get a copy of the instance.
                                     +     *
                                     +     * @return static
                                     +     */
                                     +    public function copy()
                                     +    {
                                     +        return clone $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * @alias copy
                                     +     *
                                     +     * Get a copy of the instance.
                                     +     *
                                     +     * @return static
                                     +     */
                                     +    public function clone()
                                     +    {
                                     +        return clone $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Create a new instance.
                                     +     *
                                     +     * @return static
                                     +     */
                                     +    public static function create(...$params)
                                     +    {
                                     +        return static::createFromArray($params);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Create a new instance from an array of parameters.
                                     +     *
                                     +     * @param array $params
                                     +     *
                                     +     * @return static
                                     +     */
                                     +    public static function createFromArray(array $params)
                                     +    {
                                     +        return new static(...$params);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Create CarbonPeriod from ISO 8601 string.
                                     +     *
                                     +     * @param string   $iso
                                     +     * @param int|null $options
                                     +     *
                                     +     * @return static
                                     +     */
                                     +    public static function createFromIso($iso, $options = null)
                                     +    {
                                     +        $params = static::parseIso8601($iso);
+                                    +
                                     +        $instance = static::createFromArray($params);
+                                    +
                                     +        if ($options !== null) {
                                     +            $instance->setOptions($options);
                                     +        }
+                                    +
                                     +        return $instance;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Return whether given interval contains non zero value of any time unit.
                                     +     *
                                     +     * @param \DateInterval $interval
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    protected static function intervalHasTime(DateInterval $interval)
                                     +    {
                                     +        return $interval->h || $interval->i || $interval->s || $interval->f;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Return whether given variable is an ISO 8601 specification.
                                     +     *
                                     +     * Note: Check is very basic, as actual validation will be done later when parsing.
                                     +     * We just want to ensure that variable is not any other type of a valid parameter.
                                     +     *
                                     +     * @param mixed $var
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    protected static function isIso8601($var)
                                     +    {
                                     +        if (!is_string($var)) {
                                     +            return false;
                                     +        }
+                                    +
                                     +        // Match slash but not within a timezone name.
                                     +        $part = '[a-z]+(?:[_-][a-z]+)*';
+                                    +
                                     +        preg_match("#\b$part/$part\b|(/)#i", $var, $match);
+                                    +
                                     +        return isset($match[1]);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Parse given ISO 8601 string into an array of arguments.
                                     +     *
                                     +     * @SuppressWarnings(PHPMD.ElseExpression)
                                     +     *
                                     +     * @param string $iso
                                     +     *
                                     +     * @return array
                                     +     */
                                     +    protected static function parseIso8601($iso)
                                     +    {
                                     +        $result = [];
+                                    +
                                     +        $interval = null;
                                     +        $start = null;
                                     +        $end = null;
+                                    +
                                     +        foreach (explode('/', $iso) as $key => $part) {
                                     +            if ($key === 0 && preg_match('/^R([0-9]*)$/', $part, $match)) {
                                     +                $parsed = strlen($match[1]) ? (int) $match[1] : null;
                                     +            } elseif ($interval === null && $parsed = CarbonInterval::make($part)) {
                                     +                $interval = $part;
                                     +            } elseif ($start === null && $parsed = Carbon::make($part)) {
                                     +                $start = $part;
                                     +            } elseif ($end === null && $parsed = Carbon::make(static::addMissingParts($start, $part))) {
                                     +                $end = $part;
                                     +            } else {
                                     +                throw new InvalidArgumentException("Invalid ISO 8601 specification: $iso.");
                                     +            }
+                                    +
                                     +            $result[] = $parsed;
                                     +        }
+                                    +
                                     +        return $result;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Add missing parts of the target date from the soure date.
                                     +     *
                                     +     * @param string $source
                                     +     * @param string $target
                                     +     *
                                     +     * @return string
                                     +     */
                                     +    protected static function addMissingParts($source, $target)
                                     +    {
                                     +        $pattern = '/'.preg_replace('/[0-9]+/', '[0-9]+', preg_quote($target, '/')).'$/';
+                                    +
                                     +        $result = preg_replace($pattern, $target, $source, 1, $count);
+                                    +
                                     +        return $count ? $result : $target;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Register a custom macro.
                                     +     *
                                     +     * @example
                                     +     * ```
                                     +     * CarbonPeriod::macro('middle', function () {
                                     +     *   return $this->getStartDate()->average($this->getEndDate());
                                     +     * });
                                     +     * echo CarbonPeriod::since('2011-05-12')->until('2011-06-03')->middle();
                                     +     * ```
                                     +     *
                                     +     * @param string          $name
                                     +     * @param object|callable $macro
                                     +     *
                                     +     * @return void
                                     +     */
                                     +    public static function macro($name, $macro)
                                     +    {
                                     +        static::$macros[$name] = $macro;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Register macros from a mixin object.
                                     +     *
                                     +     * @example
                                     +     * ```
                                     +     * CarbonPeriod::mixin(new class {
                                     +     *   public function addDays() {
                                     +     *     return function ($count = 1) {
                                     +     *       return $this->setStartDate(
                                     +     *         $this->getStartDate()->addDays($count)
                                     +     *       )->setEndDate(
                                     +     *         $this->getEndDate()->addDays($count)
                                     +     *       );
                                     +     *     };
                                     +     *   }
                                     +     *   public function subDays() {
                                     +     *     return function ($count = 1) {
                                     +     *       return $this->setStartDate(
                                     +     *         $this->getStartDate()->subDays($count)
                                     +     *       )->setEndDate(
                                     +     *         $this->getEndDate()->subDays($count)
                                     +     *       );
                                     +     *     };
                                     +     *   }
                                     +     * });
                                     +     * echo CarbonPeriod::create('2000-01-01', '2000-02-01')->addDays(5)->subDays(3);
                                     +     * ```
                                     +     *
                                     +     * @param object $mixin
                                     +     *
                                     +     * @throws \ReflectionException
                                     +     *
                                     +     * @return void
                                     +     */
                                     +    public static function mixin($mixin)
                                     +    {
                                     +        $reflection = new ReflectionClass($mixin);
+                                    +
                                     +        $methods = $reflection->getMethods(
                                     +            ReflectionMethod::IS_PUBLIC | ReflectionMethod::IS_PROTECTED
                                     +        );
+                                    +
                                     +        foreach ($methods as $method) {
                                     +            $method->setAccessible(true);
+                                    +
                                     +            static::macro($method->name, $method->invoke($mixin));
                                     +        }
                                     +    }
+                                    +
                                     +    /**
                                     +     * Check if macro is registered.
                                     +     *
                                     +     * @param string $name
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    public static function hasMacro($name)
                                     +    {
                                     +        return isset(static::$macros[$name]);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Provide static proxy for instance aliases.
                                     +     *
                                     +     * @param string $method
                                     +     * @param array  $parameters
                                     +     *
                                     +     * @return mixed
                                     +     */
                                     +    public static function __callStatic($method, $parameters)
                                     +    {
                                     +        return (new static)->$method(...$parameters);
                                     +    }
+                                    +
                                     +    /**
                                     +     * CarbonPeriod constructor.
                                     +     *
                                     +     * @SuppressWarnings(PHPMD.ElseExpression)
                                     +     *
                                     +     * @throws InvalidArgumentException
                                     +     */
                                     +    public function __construct(...$arguments)
                                     +    {
                                     +        // Parse and assign arguments one by one. First argument may be an ISO 8601 spec,
                                     +        // which will be first parsed into parts and then processed the same way.
+                                    +
                                     +        if (count($arguments) && static::isIso8601($iso = $arguments[0])) {
                                     +            array_splice($arguments, 0, 1, static::parseIso8601($iso));
                                     +        }
+                                    +
                                     +        foreach ($arguments as $argument) {
                                     +            if ($this->dateInterval === null &&
                                     +                (
                                     +                    is_string($argument) && preg_match('/^(\d.*|P[T0-9].*|(?:\h*\d+(?:\.\d+)?\h*[a-z]+)+)$/i', $argument) ||
                                     +                    $argument instanceof DateInterval
                                     +                ) &&
                                     +                $parsed = @CarbonInterval::make($argument)
                                     +            ) {
                                     +                $this->setDateInterval($parsed);
                                     +            } elseif ($this->startDate === null && $parsed = Carbon::make($argument)) {
                                     +                $this->setStartDate($parsed);
                                     +            } elseif ($this->endDate === null && $parsed = Carbon::make($argument)) {
                                     +                $this->setEndDate($parsed);
                                     +            } elseif ($this->recurrences === null && $this->endDate === null && is_numeric($argument)) {
                                     +                $this->setRecurrences($argument);
                                     +            } elseif ($this->options === null && (is_int($argument) || $argument === null)) {
                                     +                $this->setOptions($argument);
                                     +            } else {
                                     +                throw new InvalidArgumentException('Invalid constructor parameters.');
                                     +            }
                                     +        }
+                                    +
                                     +        if ($this->startDate === null) {
                                     +            $this->setStartDate(Carbon::now());
                                     +        }
+                                    +
                                     +        if ($this->dateInterval === null) {
                                     +            $this->setDateInterval(CarbonInterval::day());
+                                    +
                                     +            $this->isDefaultInterval = true;
                                     +        }
+                                    +
                                     +        if ($this->options === null) {
                                     +            $this->setOptions(0);
                                     +        }
                                     +    }
+                                    +
                                     +    /**
                                     +     * Return whether given callable is a string pointing to one of Carbon's is* methods
                                     +     * and should be automatically converted to a filter callback.
                                     +     *
                                     +     * @param callable $callable
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    protected function isCarbonPredicateMethod($callable)
                                     +    {
                                     +        return is_string($callable) && substr($callable, 0, 2) === 'is' && (method_exists($this->dateClass, $callable) || call_user_func([$this->dateClass, 'hasMacro'], $callable));
                                     +    }
+                                    +
                                     +    /**
                                     +     * Set the iteration item class.
                                     +     *
                                     +     * @param string $dateClass
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function setDateClass(string $dateClass)
                                     +    {
                                     +        if (!is_a($dateClass, CarbonInterface::class, true)) {
                                     +            throw new InvalidArgumentException(sprintf(
                                     +                'Given class does not implement %s: %s',
                                     +                CarbonInterface::class,
                                     +                $dateClass
                                     +            ));
                                     +        }
+                                    +
                                     +        $this->dateClass = $dateClass;
+                                    +
                                     +        if (is_a($dateClass, Carbon::class, true)) {
                                     +            $this->toggleOptions(static::IMMUTABLE, false);
                                     +        } elseif (is_a($dateClass, CarbonImmutable::class, true)) {
                                     +            $this->toggleOptions(static::IMMUTABLE, true);
                                     +        }
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Returns iteration item date class.
                                     +     *
                                     +     * @return string
                                     +     */
                                     +    public function getDateClass(): string
                                     +    {
                                     +        return $this->dateClass;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Change the period date interval.
                                     +     *
                                     +     * @param DateInterval|string $interval
                                     +     *
                                     +     * @throws \InvalidArgumentException
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function setDateInterval($interval)
                                     +    {
                                     +        if (!$interval = CarbonInterval::make($interval)) {
                                     +            throw new InvalidArgumentException('Invalid interval.');
                                     +        }
+                                    +
                                     +        if ($interval->spec() === 'PT0S' && !$interval->f) {
                                     +            throw new InvalidArgumentException('Empty interval is not accepted.');
                                     +        }
+                                    +
                                     +        $this->dateInterval = $interval;
+                                    +
                                     +        $this->isDefaultInterval = false;
+                                    +
                                     +        $this->handleChangedParameters();
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Invert the period date interval.
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function invertDateInterval()
                                     +    {
                                     +        $interval = $this->dateInterval->invert();
+                                    +
                                     +        return $this->setDateInterval($interval);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Set start and end date.
                                     +     *
                                     +     * @param DateTime|DateTimeInterface|string      $start
                                     +     * @param DateTime|DateTimeInterface|string|null $end
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function setDates($start, $end)
                                     +    {
                                     +        $this->setStartDate($start);
                                     +        $this->setEndDate($end);
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Change the period options.
                                     +     *
                                     +     * @param int|null $options
                                     +     *
                                     +     * @throws \InvalidArgumentException
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function setOptions($options)
                                     +    {
                                     +        if (!is_int($options) && !is_null($options)) {
                                     +            throw new InvalidArgumentException('Invalid options.');
                                     +        }
+                                    +
                                     +        $this->options = $options ?: 0;
+                                    +
                                     +        $this->handleChangedParameters();
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Get the period options.
                                     +     *
                                     +     * @return int
                                     +     */
                                     +    public function getOptions()
                                     +    {
                                     +        return $this->options;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Toggle given options on or off.
                                     +     *
                                     +     * @param int       $options
                                     +     * @param bool|null $state
                                     +     *
                                     +     * @throws \InvalidArgumentException
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function toggleOptions($options, $state = null)
                                     +    {
                                     +        if ($state === null) {
                                     +            $state = ($this->options & $options) !== $options;
                                     +        }
+                                    +
                                     +        return $this->setOptions(
                                     +            $state ?
                                     +            $this->options | $options :
                                     +            $this->options & ~$options
                                     +        );
                                     +    }
+                                    +
                                     +    /**
                                     +     * Toggle EXCLUDE_START_DATE option.
                                     +     *
                                     +     * @param bool $state
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function excludeStartDate($state = true)
                                     +    {
                                     +        return $this->toggleOptions(static::EXCLUDE_START_DATE, $state);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Toggle EXCLUDE_END_DATE option.
                                     +     *
                                     +     * @param bool $state
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function excludeEndDate($state = true)
                                     +    {
                                     +        return $this->toggleOptions(static::EXCLUDE_END_DATE, $state);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Get the underlying date interval.
                                     +     *
                                     +     * @return CarbonInterval
                                     +     */
                                     +    public function getDateInterval()
                                     +    {
                                     +        return $this->dateInterval->copy();
                                     +    }
+                                    +
                                     +    /**
                                     +     * Get start date of the period.
                                     +     *
                                     +     * @return CarbonInterface
                                     +     */
                                     +    public function getStartDate()
                                     +    {
                                     +        return $this->startDate->copy();
                                     +    }
+                                    +
                                     +    /**
                                     +     * Get end date of the period.
                                     +     *
                                     +     * @return CarbonInterface|null
                                     +     */
                                     +    public function getEndDate()
                                     +    {
                                     +        return $this->endDate ? $this->endDate->copy() : null;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Get number of recurrences.
                                     +     *
                                     +     * @return int|null
                                     +     */
                                     +    public function getRecurrences()
                                     +    {
                                     +        return $this->recurrences;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Returns true if the start date should be excluded.
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    public function isStartExcluded()
                                     +    {
                                     +        return ($this->options & static::EXCLUDE_START_DATE) !== 0;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Returns true if the end date should be excluded.
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    public function isEndExcluded()
                                     +    {
                                     +        return ($this->options & static::EXCLUDE_END_DATE) !== 0;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Add a filter to the stack.
                                     +     *
                                     +     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
                                     +     *
                                     +     * @param callable $callback
                                     +     * @param string   $name
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function addFilter($callback, $name = null)
                                     +    {
                                     +        $tuple = $this->createFilterTuple(func_get_args());
+                                    +
                                     +        $this->filters[] = $tuple;
+                                    +
                                     +        $this->handleChangedParameters();
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Prepend a filter to the stack.
                                     +     *
                                     +     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
                                     +     *
                                     +     * @param callable $callback
                                     +     * @param string   $name
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function prependFilter($callback, $name = null)
                                     +    {
                                     +        $tuple = $this->createFilterTuple(func_get_args());
+                                    +
                                     +        array_unshift($this->filters, $tuple);
+                                    +
                                     +        $this->handleChangedParameters();
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Create a filter tuple from raw parameters.
                                     +     *
                                     +     * Will create an automatic filter callback for one of Carbon's is* methods.
                                     +     *
                                     +     * @param array $parameters
                                     +     *
                                     +     * @return array
                                     +     */
                                     +    protected function createFilterTuple(array $parameters)
                                     +    {
                                     +        $method = array_shift($parameters);
+                                    +
                                     +        if (!$this->isCarbonPredicateMethod($method)) {
                                     +            return [$method, array_shift($parameters)];
                                     +        }
+                                    +
                                     +        return [function ($date) use ($method, $parameters) {
                                     +            return call_user_func_array([$date, $method], $parameters);
                                     +        }, $method];
                                     +    }
+                                    +
                                     +    /**
                                     +     * Remove a filter by instance or name.
                                     +     *
                                     +     * @param callable|string $filter
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function removeFilter($filter)
                                     +    {
                                     +        $key = is_callable($filter) ? 0 : 1;
+                                    +
                                     +        $this->filters = array_values(array_filter(
                                     +            $this->filters,
                                     +            function ($tuple) use ($key, $filter) {
                                     +                return $tuple[$key] !== $filter;
                                     +            }
                                     +        ));
+                                    +
                                     +        $this->updateInternalState();
+                                    +
                                     +        $this->handleChangedParameters();
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Return whether given instance or name is in the filter stack.
                                     +     *
                                     +     * @param callable|string $filter
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    public function hasFilter($filter)
                                     +    {
                                     +        $key = is_callable($filter) ? 0 : 1;
+                                    +
                                     +        foreach ($this->filters as $tuple) {
                                     +            if ($tuple[$key] === $filter) {
                                     +                return true;
                                     +            }
                                     +        }
+                                    +
                                     +        return false;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Get filters stack.
                                     +     *
                                     +     * @return array
                                     +     */
                                     +    public function getFilters()
                                     +    {
                                     +        return $this->filters;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Set filters stack.
                                     +     *
                                     +     * @param array $filters
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function setFilters(array $filters)
                                     +    {
                                     +        $this->filters = $filters;
+                                    +
                                     +        $this->updateInternalState();
+                                    +
                                     +        $this->handleChangedParameters();
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Reset filters stack.
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function resetFilters()
                                     +    {
                                     +        $this->filters = [];
+                                    +
                                     +        if ($this->endDate !== null) {
                                     +            $this->filters[] = [static::END_DATE_FILTER, null];
                                     +        }
+                                    +
                                     +        if ($this->recurrences !== null) {
                                     +            $this->filters[] = [static::RECURRENCES_FILTER, null];
                                     +        }
+                                    +
                                     +        $this->handleChangedParameters();
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Update properties after removing built-in filters.
                                     +     *
                                     +     * @return void
                                     +     */
                                     +    protected function updateInternalState()
                                     +    {
                                     +        if (!$this->hasFilter(static::END_DATE_FILTER)) {
                                     +            $this->endDate = null;
                                     +        }
+                                    +
                                     +        if (!$this->hasFilter(static::RECURRENCES_FILTER)) {
                                     +            $this->recurrences = null;
                                     +        }
                                     +    }
+                                    +
                                     +    /**
                                     +     * Add a recurrences filter (set maximum number of recurrences).
                                     +     *
                                     +     * @param int|null $recurrences
                                     +     *
                                     +     * @throws \InvalidArgumentException
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function setRecurrences($recurrences)
                                     +    {
                                     +        if (!is_numeric($recurrences) && !is_null($recurrences) || $recurrences < 0) {
                                     +            throw new InvalidArgumentException('Invalid number of recurrences.');
                                     +        }
+                                    +
                                     +        if ($recurrences === null) {
                                     +            return $this->removeFilter(static::RECURRENCES_FILTER);
                                     +        }
+                                    +
                                     +        $this->recurrences = (int) $recurrences;
+                                    +
                                     +        if (!$this->hasFilter(static::RECURRENCES_FILTER)) {
                                     +            return $this->addFilter(static::RECURRENCES_FILTER);
                                     +        }
+                                    +
                                     +        $this->handleChangedParameters();
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Recurrences filter callback (limits number of recurrences).
                                     +     *
                                     +     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
                                     +     *
                                     +     * @param \Carbon\Carbon $current
                                     +     * @param int            $key
                                     +     *
                                     +     * @return bool|string
                                     +     */
                                     +    protected function filterRecurrences($current, $key)
                                     +    {
                                     +        if ($key < $this->recurrences) {
                                     +            return true;
                                     +        }
+                                    +
                                     +        return static::END_ITERATION;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Change the period start date.
                                     +     *
                                     +     * @param DateTime|DateTimeInterface|string $date
                                     +     * @param bool|null                         $inclusive
                                     +     *
                                     +     * @throws \InvalidArgumentException
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function setStartDate($date, $inclusive = null)
                                     +    {
                                     +        if (!$date = call_user_func([$this->dateClass, 'make'], $date)) {
                                     +            throw new InvalidArgumentException('Invalid start date.');
                                     +        }
+                                    +
                                     +        $this->startDate = $date;
+                                    +
                                     +        if ($inclusive !== null) {
                                     +            $this->toggleOptions(static::EXCLUDE_START_DATE, !$inclusive);
                                     +        }
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Change the period end date.
                                     +     *
                                     +     * @param DateTime|DateTimeInterface|string|null $date
                                     +     * @param bool|null                              $inclusive
                                     +     *
                                     +     * @throws \InvalidArgumentException
                                     +     *
                                     +     * @return $this
                                     +     */
                                     +    public function setEndDate($date, $inclusive = null)
                                     +    {
                                     +        if (!is_null($date) && !$date = call_user_func([$this->dateClass, 'make'], $date)) {
                                     +            throw new InvalidArgumentException('Invalid end date.');
                                     +        }
+                                    +
                                     +        if (!$date) {
                                     +            return $this->removeFilter(static::END_DATE_FILTER);
                                     +        }
+                                    +
                                     +        $this->endDate = $date;
+                                    +
                                     +        if ($inclusive !== null) {
                                     +            $this->toggleOptions(static::EXCLUDE_END_DATE, !$inclusive);
                                     +        }
+                                    +
                                     +        if (!$this->hasFilter(static::END_DATE_FILTER)) {
                                     +            return $this->addFilter(static::END_DATE_FILTER);
                                     +        }
+                                    +
                                     +        $this->handleChangedParameters();
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * End date filter callback.
                                     +     *
                                     +     * @param \Carbon\Carbon $current
                                     +     *
                                     +     * @return bool|string
                                     +     */
                                     +    protected function filterEndDate($current)
                                     +    {
                                     +        if (!$this->isEndExcluded() && $current == $this->endDate) {
                                     +            return true;
                                     +        }
+                                    +
                                     +        if ($this->dateInterval->invert ? $current > $this->endDate : $current < $this->endDate) {
                                     +            return true;
                                     +        }
+                                    +
                                     +        return static::END_ITERATION;
                                     +    }
+                                    +
                                     +    /**
                                     +     * End iteration filter callback.
                                     +     *
                                     +     * @return string
                                     +     */
                                     +    protected function endIteration()
                                     +    {
                                     +        return static::END_ITERATION;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Handle change of the parameters.
                                     +     */
                                     +    protected function handleChangedParameters()
                                     +    {
                                     +        if (($this->getOptions() & static::IMMUTABLE) && $this->dateClass === Carbon::class) {
                                     +            $this->setDateClass(CarbonImmutable::class);
                                     +        } elseif (!($this->getOptions() & static::IMMUTABLE) && $this->dateClass === CarbonImmutable::class) {
                                     +            $this->setDateClass(Carbon::class);
                                     +        }
+                                    +
                                     +        $this->validationResult = null;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Validate current date and stop iteration when necessary.
                                     +     *
                                     +     * Returns true when current date is valid, false if it is not, or static::END_ITERATION
                                     +     * when iteration should be stopped.
                                     +     *
                                     +     * @return bool|string
                                     +     */
                                     +    protected function validateCurrentDate()
                                     +    {
                                     +        if ($this->current === null) {
                                     +            $this->rewind();
                                     +        }
+                                    +
                                     +        // Check after the first rewind to avoid repeating the initial validation.
                                     +        if ($this->validationResult !== null) {
                                     +            return $this->validationResult;
                                     +        }
+                                    +
                                     +        return $this->validationResult = $this->checkFilters();
                                     +    }
+                                    +
                                     +    /**
                                     +     * Check whether current value and key pass all the filters.
                                     +     *
                                     +     * @return bool|string
                                     +     */
                                     +    protected function checkFilters()
                                     +    {
                                     +        $current = $this->prepareForReturn($this->current);
+                                    +
                                     +        foreach ($this->filters as $tuple) {
                                     +            $result = call_user_func(
                                     +                $tuple[0],
                                     +                $current->copy(),
                                     +                $this->key,
                                     +                $this
                                     +            );
+                                    +
                                     +            if ($result === static::END_ITERATION) {
                                     +                return static::END_ITERATION;
                                     +            }
+                                    +
                                     +            if (!$result) {
                                     +                return false;
                                     +            }
                                     +        }
+                                    +
                                     +        return true;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Prepare given date to be returned to the external logic.
                                     +     *
                                     +     * @param CarbonInterface $date
                                     +     *
                                     +     * @return CarbonInterface
                                     +     */
                                     +    protected function prepareForReturn(CarbonInterface $date)
                                     +    {
                                     +        $date = call_user_func([$this->dateClass, 'make'], $date);
+                                    +
                                     +        if ($this->timezone) {
                                     +            $date = $date->setTimezone($this->timezone);
                                     +        }
+                                    +
                                     +        return $date;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Check if the current position is valid.
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    public function valid()
                                     +    {
                                     +        return $this->validateCurrentDate() === true;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Return the current key.
                                     +     *
                                     +     * @return int|null
                                     +     */
                                     +    public function key()
                                     +    {
                                     +        if ($this->valid()) {
                                     +            return $this->key;
                                     +        }
                                     +    }
+                                    +
                                     +    /**
                                     +     * Return the current date.
                                     +     *
                                     +     * @return CarbonInterface|null
                                     +     */
                                     +    public function current()
                                     +    {
                                     +        if ($this->valid()) {
                                     +            return $this->prepareForReturn($this->current);
                                     +        }
                                     +    }
+                                    +
                                     +    /**
                                     +     * Move forward to the next date.
                                     +     *
                                     +     * @throws \RuntimeException
                                     +     *
                                     +     * @return void
                                     +     */
                                     +    public function next()
                                     +    {
                                     +        if ($this->current === null) {
                                     +            $this->rewind();
                                     +        }
+                                    +
                                     +        if ($this->validationResult !== static::END_ITERATION) {
                                     +            $this->key++;
+                                    +
                                     +            $this->incrementCurrentDateUntilValid();
                                     +        }
                                     +    }
+                                    +
                                     +    /**
                                     +     * Rewind to the start date.
                                     +     *
                                     +     * Iterating over a date in the UTC timezone avoids bug during backward DST change.
                                     +     *
                                     +     * @see https://bugs.php.net/bug.php?id=72255
                                     +     * @see https://bugs.php.net/bug.php?id=74274
                                     +     * @see https://wiki.php.net/rfc/datetime_and_daylight_saving_time
                                     +     *
                                     +     * @throws \RuntimeException
                                     +     *
                                     +     * @return void
                                     +     */
                                     +    public function rewind()
                                     +    {
                                     +        $this->key = 0;
                                     +        $this->current = call_user_func([$this->dateClass, 'make'], $this->startDate);
                                     +        $settings = $this->getSettings();
                                     +        $locale = $this->getLocalTranslator()->getLocale();
                                     +        if ($locale) {
                                     +            $settings['locale'] = $locale;
                                     +        }
                                     +        $this->current->settings($settings);
                                     +        $this->timezone = static::intervalHasTime($this->dateInterval) ? $this->current->getTimezone() : null;
+                                    +
                                     +        if ($this->timezone) {
                                     +            $this->current = $this->current->utc();
                                     +        }
+                                    +
                                     +        $this->validationResult = null;
+                                    +
                                     +        if ($this->isStartExcluded() || $this->validateCurrentDate() === false) {
                                     +            $this->incrementCurrentDateUntilValid();
                                     +        }
                                     +    }
+                                    +
                                     +    /**
                                     +     * Skip iterations and returns iteration state (false if ended, true if still valid).
                                     +     *
                                     +     * @param int $count steps number to skip (1 by default)
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    public function skip($count = 1)
                                     +    {
                                     +        for ($i = $count; $this->valid() && $i > 0; $i--) {
                                     +            $this->next();
                                     +        }
+                                    +
                                     +        return $this->valid();
                                     +    }
+                                    +
                                     +    /**
                                     +     * Keep incrementing the current date until a valid date is found or the iteration is ended.
                                     +     *
                                     +     * @throws \RuntimeException
                                     +     *
                                     +     * @return void
                                     +     */
                                     +    protected function incrementCurrentDateUntilValid()
                                     +    {
                                     +        $attempts = 0;
+                                    +
                                     +        do {
                                     +            $this->current = $this->current->add($this->dateInterval);
+                                    +
                                     +            $this->validationResult = null;
+                                    +
                                     +            if (++$attempts > static::NEXT_MAX_ATTEMPTS) {
                                     +                throw new RuntimeException('Could not find next valid date.');
                                     +            }
                                     +        } while ($this->validateCurrentDate() === false);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Format the date period as ISO 8601.
                                     +     *
                                     +     * @return string
                                     +     */
                                     +    public function toIso8601String()
                                     +    {
                                     +        $parts = [];
+                                    +
                                     +        if ($this->recurrences !== null) {
                                     +            $parts[] = 'R'.$this->recurrences;
                                     +        }
+                                    +
                                     +        $parts[] = $this->startDate->toIso8601String();
+                                    +
                                     +        $parts[] = $this->dateInterval->spec();
+                                    +
                                     +        if ($this->endDate !== null) {
                                     +            $parts[] = $this->endDate->toIso8601String();
                                     +        }
+                                    +
                                     +        return implode('/', $parts);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Convert the date period into a string.
                                     +     *
                                     +     * @return string
                                     +     */
                                     +    public function toString()
                                     +    {
                                     +        $translator = call_user_func([$this->dateClass, 'getTranslator']);
+                                    +
                                     +        $parts = [];
+                                    +
                                     +        $format = !$this->startDate->isStartOfDay() || $this->endDate && !$this->endDate->isStartOfDay()
                                     +            ? 'Y-m-d H:i:s'
                                     +            : 'Y-m-d';
+                                    +
                                     +        if ($this->recurrences !== null) {
                                     +            $parts[] = $this->translate('period_recurrences', [], $this->recurrences, $translator);
                                     +        }
+                                    +
                                     +        $parts[] = $this->translate('period_interval', [':interval' => $this->dateInterval->forHumans([
                                     +            'join' => true,
                                     +        ])], null, $translator);
+                                    +
                                     +        $parts[] = $this->translate('period_start_date', [':date' => $this->startDate->rawFormat($format)], null, $translator);
+                                    +
                                     +        if ($this->endDate !== null) {
                                     +            $parts[] = $this->translate('period_end_date', [':date' => $this->endDate->rawFormat($format)], null, $translator);
                                     +        }
+                                    +
                                     +        $result = implode(' ', $parts);
+                                    +
                                     +        return mb_strtoupper(mb_substr($result, 0, 1)).mb_substr($result, 1);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Format the date period as ISO 8601.
                                     +     *
                                     +     * @return string
                                     +     */
                                     +    public function spec()
                                     +    {
                                     +        return $this->toIso8601String();
                                     +    }
+                                    +
                                     +    /**
                                     +     * Convert the date period into an array without changing current iteration state.
                                     +     *
                                     +     * @return array
                                     +     */
                                     +    public function toArray()
                                     +    {
                                     +        $state = [
                                     +            $this->key,
                                     +            $this->current ? $this->current->copy() : null,
                                     +            $this->validationResult,
                                     +        ];
+                                    +
                                     +        $result = iterator_to_array($this);
+                                    +
                                     +        [
                                     +            $this->key,
                                     +            $this->current,
                                     +            $this->validationResult
                                     +        ] = $state;
+                                    +
                                     +        return $result;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Count dates in the date period.
                                     +     *
                                     +     * @return int
                                     +     */
                                     +    public function count()
                                     +    {
                                     +        return count($this->toArray());
                                     +    }
+                                    +
                                     +    /**
                                     +     * Return the first date in the date period.
                                     +     *
                                     +     * @return CarbonInterface|null
                                     +     */
                                     +    public function first()
                                     +    {
                                     +        if ($array = $this->toArray()) {
                                     +            return $array[0];
                                     +        }
                                     +    }
+                                    +
                                     +    /**
                                     +     * Return the last date in the date period.
                                     +     *
                                     +     * @return CarbonInterface|null
                                     +     */
                                     +    public function last()
                                     +    {
                                     +        if ($array = $this->toArray()) {
                                     +            return $array[count($array) - 1];
                                     +        }
                                     +    }
+                                    +
                                     +    /**
                                     +     * Call given macro.
                                     +     *
                                     +     * @param string $name
                                     +     * @param array  $parameters
                                     +     *
                                     +     * @return mixed
                                     +     */
                                     +    protected function callMacro($name, $parameters)
                                     +    {
                                     +        $macro = static::$macros[$name];
+                                    +
                                     +        if ($macro instanceof Closure) {
                                     +            return call_user_func_array($macro->bindTo($this, static::class), $parameters);
                                     +        }
+                                    +
                                     +        return call_user_func_array($macro, $parameters);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Convert the date period into a string.
                                     +     *
                                     +     * @return string
                                     +     */
                                     +    public function __toString()
                                     +    {
                                     +        return $this->toString();
                                     +    }
+                                    +
                                     +    /**
                                     +     * Add aliases for setters.
                                     +     *
                                     +     * CarbonPeriod::days(3)->hours(5)->invert()
                                     +     *     ->sinceNow()->until('2010-01-10')
                                     +     *     ->filter(...)
                                     +     *     ->count()
                                     +     *
                                     +     * Note: We use magic method to let static and instance aliases with the same names.
                                     +     *
                                     +     * @param string $method
                                     +     * @param array  $parameters
                                     +     *
                                     +     * @return mixed
                                     +     */
                                     +    public function __call($method, $parameters)
                                     +    {
                                     +        if (static::hasMacro($method)) {
                                     +            return $this->callMacro($method, $parameters);
                                     +        }
+                                    +
                                     +        $first = count($parameters) >= 1 ? $parameters[0] : null;
                                     +        $second = count($parameters) >= 2 ? $parameters[1] : null;
+                                    +
                                     +        switch ($method) {
                                     +            case 'start':
                                     +            case 'since':
                                     +                return $this->setStartDate($first, $second);
+                                    +
                                     +            case 'sinceNow':
                                     +                return $this->setStartDate(new Carbon, $first);
+                                    +
                                     +            case 'end':
                                     +            case 'until':
                                     +                return $this->setEndDate($first, $second);
+                                    +
                                     +            case 'untilNow':
                                     +                return $this->setEndDate(new Carbon, $first);
+                                    +
                                     +            case 'dates':
                                     +            case 'between':
                                     +                return $this->setDates($first, $second);
+                                    +
                                     +            case 'recurrences':
                                     +            case 'times':
                                     +                return $this->setRecurrences($first);
+                                    +
                                     +            case 'options':
                                     +                return $this->setOptions($first);
+                                    +
                                     +            case 'toggle':
                                     +                return $this->toggleOptions($first, $second);
+                                    +
                                     +            case 'filter':
                                     +            case 'push':
                                     +                return $this->addFilter($first, $second);
+                                    +
                                     +            case 'prepend':
                                     +                return $this->prependFilter($first, $second);
+                                    +
                                     +            case 'filters':
                                     +                return $this->setFilters($first ?: []);
+                                    +
                                     +            case 'interval':
                                     +            case 'each':
                                     +            case 'every':
                                     +            case 'step':
                                     +            case 'stepBy':
                                     +                return $this->setDateInterval($first);
+                                    +
                                     +            case 'invert':
                                     +                return $this->invertDateInterval();
+                                    +
                                     +            case 'years':
                                     +            case 'year':
                                     +            case 'months':
                                     +            case 'month':
                                     +            case 'weeks':
                                     +            case 'week':
                                     +            case 'days':
                                     +            case 'dayz':
                                     +            case 'day':
                                     +            case 'hours':
                                     +            case 'hour':
                                     +            case 'minutes':
                                     +            case 'minute':
                                     +            case 'seconds':
                                     +            case 'second':
                                     +                return $this->setDateInterval(call_user_func(
                                     +                    // Override default P1D when instantiating via fluent setters.
                                     +                    [$this->isDefaultInterval ? new CarbonInterval('PT0S') : $this->dateInterval, $method],
                                     +                    count($parameters) === 0 ? 1 : $first
                                     +                ));
                                     +        }
+                                    +
                                     +        if ($this->localStrictModeEnabled ?? Carbon::isStrictModeEnabled()) {
                                     +            throw new BadMethodCallException("Method $method does not exist.");
                                     +        }
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Set the instance's timezone from a string or object and add/subtract the offset difference.
                                     +     *
                                     +     * @param \DateTimeZone|string $timezone
                                     +     *
                                     +     * @return static
                                     +     */
                                     +    public function shiftTimezone($timezone)
                                     +    {
                                     +        $this->tzName = $timezone;
                                     +        $this->timezone = $timezone;
+                                    +
                                     +        return $this;
                                     +    }
+                                    +
                                     +    /**
                                     +     * Returns the end is set, else calculated from start an recurrences.
                                     +     *
                                     +     * @return CarbonInterface
                                     +     */
                                     +    public function calculateEnd()
                                     +    {
                                     +        if ($end = $this->getEndDate()) {
                                     +            return $end;
                                     +        }
+                                    +
                                     +        $dates = iterator_to_array($this);
+                                    +
                                     +        return end($dates);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Returns true if the current period overlaps the given one (if 1 parameter passed)
                                     +     * or the period between 2 dates (if 2 parameters passed).
                                     +     *
                                     +     * @param CarbonPeriod|\DateTimeInterface|Carbon|CarbonImmutable|string $rangeOrRangeStart
                                     +     * @param \DateTimeInterface|Carbon|CarbonImmutable|string|null         $rangeEnd
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    public function overlaps($rangeOrRangeStart, $rangeEnd = null)
                                     +    {
                                     +        $range = $rangeEnd ? static::create($rangeOrRangeStart, $rangeEnd) : $rangeOrRangeStart;
+                                    +
                                     +        if (!($range instanceof self)) {
                                     +            $range = static::create($range);
                                     +        }
+                                    +
                                     +        return $this->calculateEnd() > $range->getStartDate() && $range->calculateEnd() > $this->getStartDate();
                                     +    }
+                                    +
                                     +    /**
                                     +     * Execute a given function on each date of the period.
                                     +     *
                                     +     * @example
                                     +     * ```
                                     +     * Carbon::create('2020-11-29')->daysUntil('2020-12-24')->forEach(function (Carbon $date) {
                                     +     *   echo $date->diffInDays('2020-12-25')." days before Christmas!\n";
                                     +     * });
                                     +     * ```
                                     +     *
                                     +     * @param callable $callback
                                     +     */
                                     +    public function forEach(callable $callback)
                                     +    {
                                     +        foreach ($this as $date) {
                                     +            $callback($date);
                                     +        }
                                     +    }
+                                    +
                                     +    /**
                                     +     * Execute a given function on each date of the period and yield the result of this function.
                                     +     *
                                     +     * @example
                                     +     * ```
                                     +     * $period = Carbon::create('2020-11-29')->daysUntil('2020-12-24');
                                     +     * echo implode("\n", iterator_to_array($period->map(function (Carbon $date) {
                                     +     *   return $date->diffInDays('2020-12-25').' days before Christmas!';
                                     +     * })));
                                     +     * ```
                                     +     *
                                     +     * @param callable $callback
                                     +     *
                                     +     * @return \Generator
                                     +     */
                                     +    public function map(callable $callback)
                                     +    {
                                     +        foreach ($this as $date) {
                                     +            yield $callback($date);
                                     +        }
                                     +    }
+                                    +
                                     +    /**
                                     +     * Determines if the instance is equal to another
                                     +     *
                                     +     * @param mixed $period
                                     +     *
                                     +     * @see equalTo()
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    public function eq($period): bool
                                     +    {
                                     +        return $this->equalTo($period);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Determines if the instance is equal to another
                                     +     *
                                     +     * @param mixed $period
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    public function equalTo($period): bool
                                     +    {
                                     +        if (!($period instanceof self)) {
                                     +            $period = self::make($period);
                                     +        }
+                                    +
                                     +        return $period !== null
                                     +            && $this->getDateInterval()->eq($period->getDateInterval())
                                     +            && $this->getStartDate()->eq($period->getStartDate())
                                     +            && $this->getEndDate()->eq($period->getEndDate())
                                     +            && $this->getOptions() === $period->getOptions();
                                     +    }
+                                    +
                                     +    /**
                                     +     * Determines if the instance is not equal to another
                                     +     *
                                     +     * @param mixed $period
                                     +     *
                                     +     * @see notEqualTo()
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    public function ne($period): bool
                                     +    {
                                     +        return $this->notEqualTo($period);
                                     +    }
+                                    +
                                     +    /**
                                     +     * Determines if the instance is not equal to another
                                     +     *
                                     +     * @param mixed $period
                                     +     *
                                     +     * @return bool
                                     +     */
                                     +    public function notEqualTo($period): bool
                                     +    {
                                     +        return !$this->eq($period);
                                     +    }
                                     +}