Adding upstream version 1:1.1.2.upstream/1%1.1.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

13 files changed, 1575 insertions, 0 deletions

diff --git a/vendor/dragonmantank/cron-expression/CHANGELOG.md b/vendor/dragonmantank/cron-expression/CHANGELOG.md
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index 0000000..4e207aa
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/CHANGELOG.md
@@ -0,0 +1,84 @@
+# Change Log
+
+## [2.3.1] - 2020-10-12
+### Added
+- Added support for PHP 8 (#92)
+### Changed
+- N/A
+### Fixed
+- N/A
+
+## [2.3.0] - 2019-03-30
+### Added
+- Added support for DateTimeImmutable via DateTimeInterface
+- Added support for PHP 7.3
+- Started listing projects that use the library
+### Changed
+- Errors should now report a human readable position in the cron expression, instead of starting at 0
+### Fixed
+- N/A
+
+## [2.2.0] - 2018-06-05
+### Added
+- Added support for steps larger than field ranges (#6)
+## Changed
+- N/A
+### Fixed
+- Fixed validation for numbers with leading 0s (#12)
+
+## [2.1.0] - 2018-04-06
+### Added
+- N/A
+### Changed
+- Upgraded to PHPUnit 6 (#2)
+### Fixed
+- Refactored timezones to deal with some inconsistent behavior (#3)
+- Allow ranges and lists in same expression (#5)
+- Fixed regression where literals were not converted to their numerical counterpart (#)
+
+## [2.0.0] - 2017-10-12
+### Added
+- N/A
+
+### Changed
+- Dropped support for PHP 5.x
+- Dropped support for the YEAR field, as it was not part of the cron standard
+
+### Fixed
+- Reworked validation for all the field types
+- Stepping should now work for 1-indexed fields like Month (#153)
+
+## [1.2.0] - 2017-01-22
+### Added
+- Added IDE, CodeSniffer, and StyleCI.IO support
+
+### Changed
+- Switched to PSR-4 Autoloading
+
+### Fixed
+- 0 step expressions are handled better
+- Fixed `DayOfMonth` validation to be more strict
+- Typos
+
+## [1.1.0] - 2016-01-26
+### Added
+- Support for non-hourly offset timezones 
+- Checks for valid expressions
+
+### Changed
+- Max Iterations no longer hardcoded for `getRunDate()`
+- Supports DateTimeImmutable for newer PHP verions
+
+### Fixed
+- Fixed looping bug for PHP 7 when determining the last specified weekday of a month
+
+## [1.0.3] - 2013-11-23
+### Added
+- Now supports expressions with any number of extra spaces, tabs, or newlines
+
+### Changed
+- Using static instead of self in `CronExpression::factory`
+
+### Fixed
+- Fixes issue [#28](https://github.com/mtdowling/cron-expression/issues/28) where PHP increments of ranges were failing due to PHP casting hyphens to 0
+- Only set default timezone if the given $currentTime is not a DateTime instance ([#34](https://github.com/mtdowling/cron-expression/issues/34))
diff --git a/vendor/dragonmantank/cron-expression/LICENSE b/vendor/dragonmantank/cron-expression/LICENSE
new file mode 100644
index 0000000..3e38bbc
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2011 Michael Dowling <mtdowling@gmail.com>, 2016 Chris Tankersley <chris@ctankersley.com>, and contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/dragonmantank/cron-expression/README.md b/vendor/dragonmantank/cron-expression/README.md
new file mode 100644
index 0000000..8e8021b
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/README.md
@@ -0,0 +1,78 @@
+PHP Cron Expression Parser
+==========================
+
+[![Latest Stable Version](https://poser.pugx.org/dragonmantank/cron-expression/v/stable.png)](https://packagist.org/packages/dragonmantank/cron-expression) [![Total Downloads](https://poser.pugx.org/dragonmantank/cron-expression/downloads.png)](https://packagist.org/packages/dragonmantank/cron-expression) [![Build Status](https://secure.travis-ci.org/dragonmantank/cron-expression.png)](http://travis-ci.org/dragonmantank/cron-expression)
+
+The PHP cron expression parser can parse a CRON expression, determine if it is
+due to run, calculate the next run date of the expression, and calculate the previous
+run date of the expression.  You can calculate dates far into the future or past by
+skipping **n** number of matching dates.
+
+The parser can handle increments of ranges (e.g. */12, 2-59/3), intervals (e.g. 0-9),
+lists (e.g. 1,2,3), **W** to find the nearest weekday for a given day of the month, **L** to
+find the last day of the month, **L** to find the last given weekday of a month, and hash
+(#) to find the nth weekday of a given month.
+
+More information about this fork can be found in the blog post [here](http://ctankersley.com/2017/10/12/cron-expression-update/). tl;dr - v2.0.0 is a major breaking change, and @dragonmantank can better take care of the project in a separate fork.
+
+Installing
+==========
+
+Add the dependency to your project:
+
+```bash
+composer require dragonmantank/cron-expression
+```
+
+Usage
+=====
+```php
+<?php
+
+require_once '/vendor/autoload.php';
+
+// Works with predefined scheduling definitions
+$cron = Cron\CronExpression::factory('@daily');
+$cron->isDue();
+echo $cron->getNextRunDate()->format('Y-m-d H:i:s');
+echo $cron->getPreviousRunDate()->format('Y-m-d H:i:s');
+
+// Works with complex expressions
+$cron = Cron\CronExpression::factory('3-59/15 6-12 */15 1 2-5');
+echo $cron->getNextRunDate()->format('Y-m-d H:i:s');
+
+// Calculate a run date two iterations into the future
+$cron = Cron\CronExpression::factory('@daily');
+echo $cron->getNextRunDate(null, 2)->format('Y-m-d H:i:s');
+
+// Calculate a run date relative to a specific time
+$cron = Cron\CronExpression::factory('@monthly');
+echo $cron->getNextRunDate('2010-01-12 00:00:00')->format('Y-m-d H:i:s');
+```
+
+CRON Expressions
+================
+
+A CRON expression is a string representing the schedule for a particular command to execute.  The parts of a CRON schedule are as follows:
+
+    *    *    *    *    *
+    -    -    -    -    -
+    |    |    |    |    |
+    |    |    |    |    |
+    |    |    |    |    +----- day of week (0 - 7) (Sunday=0 or 7)
+    |    |    |    +---------- month (1 - 12)
+    |    |    +--------------- day of month (1 - 31)
+    |    +-------------------- hour (0 - 23)
+    +------------------------- min (0 - 59)
+
+Requirements
+============
+
+- PHP 7.0+
+- PHPUnit is required to run the unit tests
+- Composer is required to run the unit tests
+
+Projects that Use cron-expression
+=================================
+* Part of the [Laravel Framework](https://github.com/laravel/framework/)
+* Available as a [Symfony Bundle - setono/cron-expression-bundle](https://github.com/Setono/CronExpressionBundle)
\ No newline at end of file
diff --git a/vendor/dragonmantank/cron-expression/composer.json b/vendor/dragonmantank/cron-expression/composer.json
new file mode 100644
index 0000000..6fcf818
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/composer.json
@@ -0,0 +1,40 @@
+{
+    "name": "dragonmantank/cron-expression",
+    "type": "library",
+    "description": "CRON for PHP: Calculate the next or previous run date and determine if a CRON expression is due",
+    "keywords": ["cron", "schedule"],
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Michael Dowling",
+            "email": "mtdowling@gmail.com",
+            "homepage": "https://github.com/mtdowling"
+        },
+        {
+            "name": "Chris Tankersley",
+            "email": "chris@ctankersley.com",
+            "homepage": "https://github.com/dragonmantank"
+        }
+    ],
+    "require": {
+        "php": "^7.0|^8.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^6.4|^7.0|^8.0|^9.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Cron\\": "src/Cron/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Tests\\": "tests/Cron/"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "2.3-dev"
+        }
+    }
+}
diff --git a/vendor/dragonmantank/cron-expression/src/Cron/AbstractField.php b/vendor/dragonmantank/cron-expression/src/Cron/AbstractField.php
new file mode 100644
index 0000000..8b1072a
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/src/Cron/AbstractField.php
@@ -0,0 +1,286 @@
+<?php
+
+namespace Cron;
+
+/**
+ * Abstract CRON expression field
+ */
+abstract class AbstractField implements FieldInterface
+{
+    /**
+     * Full range of values that are allowed for this field type
+     * @var array
+     */
+    protected $fullRange = [];
+
+    /**
+     * Literal values we need to convert to integers
+     * @var array
+     */
+    protected $literals = [];
+
+    /**
+     * Start value of the full range
+     * @var integer
+     */
+    protected $rangeStart;
+
+    /**
+     * End value of the full range
+     * @var integer
+     */
+    protected $rangeEnd;
+
+    /**
+     * Constructor
+     */
+    public function __construct()
+    {
+        $this->fullRange = range($this->rangeStart, $this->rangeEnd);
+    }
+
+    /**
+     * Check to see if a field is satisfied by a value
+     *
+     * @param string $dateValue Date value to check
+     * @param string $value     Value to test
+     *
+     * @return bool
+     */
+    public function isSatisfied($dateValue, $value)
+    {
+        if ($this->isIncrementsOfRanges($value)) {
+            return $this->isInIncrementsOfRanges($dateValue, $value);
+        } elseif ($this->isRange($value)) {
+            return $this->isInRange($dateValue, $value);
+        }
+
+        return $value == '*' || $dateValue == $value;
+    }
+
+    /**
+     * Check if a value is a range
+     *
+     * @param string $value Value to test
+     *
+     * @return bool
+     */
+    public function isRange($value)
+    {
+        return strpos($value, '-') !== false;
+    }
+
+    /**
+     * Check if a value is an increments of ranges
+     *
+     * @param string $value Value to test
+     *
+     * @return bool
+     */
+    public function isIncrementsOfRanges($value)
+    {
+        return strpos($value, '/') !== false;
+    }
+
+    /**
+     * Test if a value is within a range
+     *
+     * @param string $dateValue Set date value
+     * @param string $value     Value to test
+     *
+     * @return bool
+     */
+    public function isInRange($dateValue, $value)
+    {
+        $parts = array_map(function($value) {
+                $value = trim($value);
+                $value = $this->convertLiterals($value);
+                return $value;
+            },
+            explode('-', $value, 2)
+        );
+
+
+        return $dateValue >= $parts[0] && $dateValue <= $parts[1];
+    }
+
+    /**
+     * Test if a value is within an increments of ranges (offset[-to]/step size)
+     *
+     * @param string $dateValue Set date value
+     * @param string $value     Value to test
+     *
+     * @return bool
+     */
+    public function isInIncrementsOfRanges($dateValue, $value)
+    {
+        $chunks = array_map('trim', explode('/', $value, 2));
+        $range = $chunks[0];
+        $step = isset($chunks[1]) ? $chunks[1] : 0;
+
+        // No step or 0 steps aren't cool
+        if (is_null($step) || '0' === $step || 0 === $step) {
+            return false;
+        }
+
+        // Expand the * to a full range
+        if ('*' == $range) {
+            $range = $this->rangeStart . '-' . $this->rangeEnd;
+        }
+
+        // Generate the requested small range
+        $rangeChunks = explode('-', $range, 2);
+        $rangeStart = $rangeChunks[0];
+        $rangeEnd = isset($rangeChunks[1]) ? $rangeChunks[1] : $rangeStart;
+
+        if ($rangeStart < $this->rangeStart || $rangeStart > $this->rangeEnd || $rangeStart > $rangeEnd) {
+            throw new \OutOfRangeException('Invalid range start requested');
+        }
+
+        if ($rangeEnd < $this->rangeStart || $rangeEnd > $this->rangeEnd || $rangeEnd < $rangeStart) {
+            throw new \OutOfRangeException('Invalid range end requested');
+        }
+
+        // Steps larger than the range need to wrap around and be handled slightly differently than smaller steps
+        if ($step >= $this->rangeEnd) {
+            $thisRange = [$this->fullRange[$step % count($this->fullRange)]];
+        } else {
+            $thisRange = range($rangeStart, $rangeEnd, $step);
+        }
+
+        return in_array($dateValue, $thisRange);
+    }
+
+    /**
+     * Returns a range of values for the given cron expression
+     *
+     * @param string $expression The expression to evaluate
+     * @param int $max           Maximum offset for range
+     *
+     * @return array
+     */
+    public function getRangeForExpression($expression, $max)
+    {
+        $values = array();
+        $expression = $this->convertLiterals($expression);
+
+        if (strpos($expression, ',') !== false) {
+            $ranges = explode(',', $expression);
+            $values = [];
+            foreach ($ranges as $range) {
+                $expanded = $this->getRangeForExpression($range, $this->rangeEnd);
+                $values = array_merge($values, $expanded);
+            }
+            return $values;
+        }
+
+        if ($this->isRange($expression) || $this->isIncrementsOfRanges($expression)) {
+            if (!$this->isIncrementsOfRanges($expression)) {
+                list ($offset, $to) = explode('-', $expression);
+                $offset = $this->convertLiterals($offset);
+                $to = $this->convertLiterals($to);
+                $stepSize = 1;
+            }
+            else {
+                $range = array_map('trim', explode('/', $expression, 2));
+                $stepSize = isset($range[1]) ? $range[1] : 0;
+                $range = $range[0];
+                $range = explode('-', $range, 2);
+                $offset = $range[0];
+                $to = isset($range[1]) ? $range[1] : $max;
+            }
+            $offset = $offset == '*' ? $this->rangeStart : $offset;
+            if ($stepSize >= $this->rangeEnd) {
+                $values = [$this->fullRange[$stepSize % count($this->fullRange)]];
+            } else {
+                for ($i = $offset; $i <= $to; $i += $stepSize) {
+                    $values[] = (int)$i;
+                }
+            }
+            sort($values);
+        }
+        else {
+            $values = array($expression);
+        }
+
+        return $values;
+    }
+
+    /**
+     * Convert literal
+     *
+     * @param string $value
+     * @return string
+     */
+    protected function convertLiterals($value)
+    {
+        if (count($this->literals)) {
+            $key = array_search($value, $this->literals);
+            if ($key !== false) {
+                return (string) $key;
+            }
+        }
+
+        return $value;
+    }
+
+    /**
+     * Checks to see if a value is valid for the field
+     *
+     * @param string $value
+     * @return bool
+     */
+    public function validate($value)
+    {
+        $value = $this->convertLiterals($value);
+
+        // All fields allow * as a valid value
+        if ('*' === $value) {
+            return true;
+        }
+
+        if (strpos($value, '/') !== false) {
+            list($range, $step) = explode('/', $value);
+            return $this->validate($range) && filter_var($step, FILTER_VALIDATE_INT);
+        }
+
+        // Validate each chunk of a list individually
+        if (strpos($value, ',') !== false) {
+            foreach (explode(',', $value) as $listItem) {
+                if (!$this->validate($listItem)) {
+                    return false;
+                }
+            }
+            return true;
+        }
+
+        if (strpos($value, '-') !== false) {
+            if (substr_count($value, '-') > 1) {
+                return false;
+            }
+
+            $chunks = explode('-', $value);
+            $chunks[0] = $this->convertLiterals($chunks[0]);
+            $chunks[1] = $this->convertLiterals($chunks[1]);
+
+            if ('*' == $chunks[0] || '*' == $chunks[1]) {
+                return false;
+            }
+
+            return $this->validate($chunks[0]) && $this->validate($chunks[1]);
+        }
+
+        if (!is_numeric($value)) {
+            return false;
+        }
+
+        if (is_float($value) || strpos($value, '.') !== false) {
+            return false;
+        }
+
+        // We should have a numeric by now, so coerce this into an integer
+        $value = (int) $value;
+
+        return in_array($value, $this->fullRange, true);
+    }
+}
diff --git a/vendor/dragonmantank/cron-expression/src/Cron/CronExpression.php b/vendor/dragonmantank/cron-expression/src/Cron/CronExpression.php
new file mode 100644
index 0000000..dbb93ce
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/src/Cron/CronExpression.php
@@ -0,0 +1,413 @@
+<?php
+
+namespace Cron;
+
+use DateTime;
+use DateTimeImmutable;
+use DateTimeInterface;
+use DateTimeZone;
+use Exception;
+use InvalidArgumentException;
+use RuntimeException;
+
+/**
+ * CRON expression parser that can determine whether or not a CRON expression is
+ * due to run, the next run date and previous run date of a CRON expression.
+ * The determinations made by this class are accurate if checked run once per
+ * minute (seconds are dropped from date time comparisons).
+ *
+ * Schedule parts must map to:
+ * minute [0-59], hour [0-23], day of month, month [1-12|JAN-DEC], day of week
+ * [1-7|MON-SUN], and an optional year.
+ *
+ * @link http://en.wikipedia.org/wiki/Cron
+ */
+class CronExpression
+{
+    const MINUTE = 0;
+    const HOUR = 1;
+    const DAY = 2;
+    const MONTH = 3;
+    const WEEKDAY = 4;
+    const YEAR = 5;
+
+    /**
+     * @var array CRON expression parts
+     */
+    private $cronParts;
+
+    /**
+     * @var FieldFactory CRON field factory
+     */
+    private $fieldFactory;
+
+    /**
+     * @var int Max iteration count when searching for next run date
+     */
+    private $maxIterationCount = 1000;
+
+    /**
+     * @var array Order in which to test of cron parts
+     */
+    private static $order = array(self::YEAR, self::MONTH, self::DAY, self::WEEKDAY, self::HOUR, self::MINUTE);
+
+    /**
+     * Factory method to create a new CronExpression.
+     *
+     * @param string $expression The CRON expression to create.  There are
+     *                           several special predefined values which can be used to substitute the
+     *                           CRON expression:
+     *
+     *      `@yearly`, `@annually` - Run once a year, midnight, Jan. 1 - 0 0 1 1 *
+     *      `@monthly` - Run once a month, midnight, first of month - 0 0 1 * *
+     *      `@weekly` - Run once a week, midnight on Sun - 0 0 * * 0
+     *      `@daily` - Run once a day, midnight - 0 0 * * *
+     *      `@hourly` - Run once an hour, first minute - 0 * * * *
+     * @param FieldFactory|null $fieldFactory Field factory to use
+     *
+     * @return CronExpression
+     */
+    public static function factory($expression, FieldFactory $fieldFactory = null)
+    {
+        $mappings = array(
+            '@yearly' => '0 0 1 1 *',
+            '@annually' => '0 0 1 1 *',
+            '@monthly' => '0 0 1 * *',
+            '@weekly' => '0 0 * * 0',
+            '@daily' => '0 0 * * *',
+            '@hourly' => '0 * * * *'
+        );
+
+        if (isset($mappings[$expression])) {
+            $expression = $mappings[$expression];
+        }
+
+        return new static($expression, $fieldFactory ?: new FieldFactory());
+    }
+
+    /**
+     * Validate a CronExpression.
+     *
+     * @param string $expression The CRON expression to validate.
+     *
+     * @return bool True if a valid CRON expression was passed. False if not.
+     * @see \Cron\CronExpression::factory
+     */
+    public static function isValidExpression($expression)
+    {
+        try {
+            self::factory($expression);
+        } catch (InvalidArgumentException $e) {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Parse a CRON expression
+     *
+     * @param string       $expression   CRON expression (e.g. '8 * * * *')
+     * @param FieldFactory|null $fieldFactory Factory to create cron fields
+     */
+    public function __construct($expression, FieldFactory $fieldFactory = null)
+    {
+        $this->fieldFactory = $fieldFactory ?: new FieldFactory();
+        $this->setExpression($expression);
+    }
+
+    /**
+     * Set or change the CRON expression
+     *
+     * @param string $value CRON expression (e.g. 8 * * * *)
+     *
+     * @return CronExpression
+     * @throws \InvalidArgumentException if not a valid CRON expression
+     */
+    public function setExpression($value)
+    {
+        $this->cronParts = preg_split('/\s/', $value, -1, PREG_SPLIT_NO_EMPTY);
+        if (count($this->cronParts) < 5) {
+            throw new InvalidArgumentException(
+                $value . ' is not a valid CRON expression'
+            );
+        }
+
+        foreach ($this->cronParts as $position => $part) {
+            $this->setPart($position, $part);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Set part of the CRON expression
+     *
+     * @param int    $position The position of the CRON expression to set
+     * @param string $value    The value to set
+     *
+     * @return CronExpression
+     * @throws \InvalidArgumentException if the value is not valid for the part
+     */
+    public function setPart($position, $value)
+    {
+        if (!$this->fieldFactory->getField($position)->validate($value)) {
+            throw new InvalidArgumentException(
+                'Invalid CRON field value ' . $value . ' at position ' . $position
+            );
+        }
+
+        $this->cronParts[$position] = $value;
+
+        return $this;
+    }
+
+    /**
+     * Set max iteration count for searching next run dates
+     *
+     * @param int $maxIterationCount Max iteration count when searching for next run date
+     *
+     * @return CronExpression
+     */
+    public function setMaxIterationCount($maxIterationCount)
+    {
+        $this->maxIterationCount = $maxIterationCount;
+
+        return $this;
+    }
+
+    /**
+     * Get a next run date relative to the current date or a specific date
+     *
+     * @param string|\DateTimeInterface $currentTime      Relative calculation date
+     * @param int                       $nth              Number of matches to skip before returning a
+     *                                                    matching next run date.  0, the default, will return the
+     *                                                    current date and time if the next run date falls on the
+     *                                                    current date and time.  Setting this value to 1 will
+     *                                                    skip the first match and go to the second match.
+     *                                                    Setting this value to 2 will skip the first 2
+     *                                                    matches and so on.
+     * @param bool                      $allowCurrentDate Set to TRUE to return the current date if
+     *                                                    it matches the cron expression.
+     * @param null|string               $timeZone         TimeZone to use instead of the system default
+     *
+     * @return \DateTime
+     * @throws \RuntimeException on too many iterations
+     */
+    public function getNextRunDate($currentTime = 'now', $nth = 0, $allowCurrentDate = false, $timeZone = null)
+    {
+        return $this->getRunDate($currentTime, $nth, false, $allowCurrentDate, $timeZone);
+    }
+
+    /**
+     * Get a previous run date relative to the current date or a specific date
+     *
+     * @param string|\DateTimeInterface $currentTime      Relative calculation date
+     * @param int                       $nth              Number of matches to skip before returning
+     * @param bool                      $allowCurrentDate Set to TRUE to return the
+     *                                                    current date if it matches the cron expression
+     * @param null|string               $timeZone         TimeZone to use instead of the system default
+     *
+     * @return \DateTime
+     * @throws \RuntimeException on too many iterations
+     * @see \Cron\CronExpression::getNextRunDate
+     */
+    public function getPreviousRunDate($currentTime = 'now', $nth = 0, $allowCurrentDate = false, $timeZone = null)
+    {
+        return $this->getRunDate($currentTime, $nth, true, $allowCurrentDate, $timeZone);
+    }
+
+    /**
+     * Get multiple run dates starting at the current date or a specific date
+     *
+     * @param int                       $total            Set the total number of dates to calculate
+     * @param string|\DateTimeInterface $currentTime      Relative calculation date
+     * @param bool                      $invert           Set to TRUE to retrieve previous dates
+     * @param bool                      $allowCurrentDate Set to TRUE to return the
+     *                                                    current date if it matches the cron expression
+     * @param null|string               $timeZone         TimeZone to use instead of the system default
+     *
+     * @return \DateTime[] Returns an array of run dates
+     */
+    public function getMultipleRunDates($total, $currentTime = 'now', $invert = false, $allowCurrentDate = false, $timeZone = null)
+    {
+        $matches = array();
+        for ($i = 0; $i < max(0, $total); $i++) {
+            try {
+                $matches[] = $this->getRunDate($currentTime, $i, $invert, $allowCurrentDate, $timeZone);
+            } catch (RuntimeException $e) {
+                break;
+            }
+        }
+
+        return $matches;
+    }
+
+    /**
+     * Get all or part of the CRON expression
+     *
+     * @param string $part Specify the part to retrieve or NULL to get the full
+     *                     cron schedule string.
+     *
+     * @return string|null Returns the CRON expression, a part of the
+     *                     CRON expression, or NULL if the part was specified but not found
+     */
+    public function getExpression($part = null)
+    {
+        if (null === $part) {
+            return implode(' ', $this->cronParts);
+        } elseif (array_key_exists($part, $this->cronParts)) {
+            return $this->cronParts[$part];
+        }
+
+        return null;
+    }
+
+    /**
+     * Helper method to output the full expression.
+     *
+     * @return string Full CRON expression
+     */
+    public function __toString()
+    {
+        return $this->getExpression();
+    }
+
+    /**
+     * Determine if the cron is due to run based on the current date or a
+     * specific date.  This method assumes that the current number of
+     * seconds are irrelevant, and should be called once per minute.
+     *
+     * @param string|\DateTimeInterface $currentTime Relative calculation date
+     * @param null|string               $timeZone    TimeZone to use instead of the system default
+     *
+     * @return bool Returns TRUE if the cron is due to run or FALSE if not
+     */
+    public function isDue($currentTime = 'now', $timeZone = null)
+    {
+        $timeZone = $this->determineTimeZone($currentTime, $timeZone);
+
+        if ('now' === $currentTime) {
+            $currentTime = new DateTime();
+        } elseif ($currentTime instanceof DateTime) {
+            //
+        } elseif ($currentTime instanceof DateTimeImmutable) {
+            $currentTime = DateTime::createFromFormat('U', $currentTime->format('U'));
+        } else {
+            $currentTime = new DateTime($currentTime);
+        }
+        $currentTime->setTimeZone(new DateTimeZone($timeZone));
+
+        // drop the seconds to 0
+        $currentTime = DateTime::createFromFormat('Y-m-d H:i', $currentTime->format('Y-m-d H:i'));
+
+        try {
+            return $this->getNextRunDate($currentTime, 0, true)->getTimestamp() === $currentTime->getTimestamp();
+        } catch (Exception $e) {
+            return false;
+        }
+    }
+
+    /**
+     * Get the next or previous run date of the expression relative to a date
+     *
+     * @param string|\DateTimeInterface $currentTime      Relative calculation date
+     * @param int                       $nth              Number of matches to skip before returning
+     * @param bool                      $invert           Set to TRUE to go backwards in time
+     * @param bool                      $allowCurrentDate Set to TRUE to return the
+     *                                                    current date if it matches the cron expression
+     * @param string|null               $timeZone         TimeZone to use instead of the system default
+     *
+     * @return \DateTime
+     * @throws \RuntimeException on too many iterations
+     */
+    protected function getRunDate($currentTime = null, $nth = 0, $invert = false, $allowCurrentDate = false, $timeZone = null)
+    {
+        $timeZone = $this->determineTimeZone($currentTime, $timeZone);
+
+        if ($currentTime instanceof DateTime) {
+            $currentDate = clone $currentTime;
+        } elseif ($currentTime instanceof DateTimeImmutable) {
+            $currentDate = DateTime::createFromFormat('U', $currentTime->format('U'));
+        } else {
+            $currentDate = new DateTime($currentTime ?: 'now');
+        }
+
+        $currentDate->setTimeZone(new DateTimeZone($timeZone));
+        $currentDate->setTime($currentDate->format('H'), $currentDate->format('i'), 0);
+        $nextRun = clone $currentDate;
+        $nth = (int) $nth;
+
+        // We don't have to satisfy * or null fields
+        $parts = array();
+        $fields = array();
+        foreach (self::$order as $position) {
+            $part = $this->getExpression($position);
+            if (null === $part || '*' === $part) {
+                continue;
+            }
+            $parts[$position] = $part;
+            $fields[$position] = $this->fieldFactory->getField($position);
+        }
+
+        // Set a hard limit to bail on an impossible date
+        for ($i = 0; $i < $this->maxIterationCount; $i++) {
+
+            foreach ($parts as $position => $part) {
+                $satisfied = false;
+                // Get the field object used to validate this part
+                $field = $fields[$position];
+                // Check if this is singular or a list
+                if (strpos($part, ',') === false) {
+                    $satisfied = $field->isSatisfiedBy($nextRun, $part);
+                } else {
+                    foreach (array_map('trim', explode(',', $part)) as $listPart) {
+                        if ($field->isSatisfiedBy($nextRun, $listPart)) {
+                            $satisfied = true;
+                            break;
+                        }
+                    }
+                }
+
+                // If the field is not satisfied, then start over
+                if (!$satisfied) {
+                    $field->increment($nextRun, $invert, $part);
+                    continue 2;
+                }
+            }
+
+            // Skip this match if needed
+            if ((!$allowCurrentDate && $nextRun == $currentDate) || --$nth > -1) {
+                $this->fieldFactory->getField(0)->increment($nextRun, $invert, isset($parts[0]) ? $parts[0] : null);
+                continue;
+            }
+
+            return $nextRun;
+        }
+
+        // @codeCoverageIgnoreStart
+        throw new RuntimeException('Impossible CRON expression');
+        // @codeCoverageIgnoreEnd
+    }
+
+    /**
+     * Workout what timeZone should be used.
+     *
+     * @param string|\DateTimeInterface $currentTime      Relative calculation date
+     * @param string|null               $timeZone         TimeZone to use instead of the system default
+     *
+     * @return string
+     */
+    protected function determineTimeZone($currentTime, $timeZone)
+    {
+        if (! is_null($timeZone)) {
+            return $timeZone;
+        }
+
+        if ($currentTime instanceOf DateTimeInterface) {
+            return $currentTime->getTimeZone()->getName();
+        }
+
+        return date_default_timezone_get();
+    }
+}
diff --git a/vendor/dragonmantank/cron-expression/src/Cron/DayOfMonthField.php b/vendor/dragonmantank/cron-expression/src/Cron/DayOfMonthField.php
new file mode 100644
index 0000000..d4552e0
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/src/Cron/DayOfMonthField.php
@@ -0,0 +1,145 @@
+<?php
+
+namespace Cron;
+
+use DateTime;
+use DateTimeInterface;
+
+/**
+ * Day of month field.  Allows: * , / - ? L W
+ *
+ * 'L' stands for "last" and specifies the last day of the month.
+ *
+ * The 'W' character is used to specify the weekday (Monday-Friday) nearest the
+ * given day. As an example, if you were to specify "15W" as the value for the
+ * day-of-month field, the meaning is: "the nearest weekday to the 15th of the
+ * month". So if the 15th is a Saturday, the trigger will fire on Friday the
+ * 14th. If the 15th is a Sunday, the trigger will fire on Monday the 16th. If
+ * the 15th is a Tuesday, then it will fire on Tuesday the 15th. However if you
+ * specify "1W" as the value for day-of-month, and the 1st is a Saturday, the
+ * trigger will fire on Monday the 3rd, as it will not 'jump' over the boundary
+ * of a month's days. The 'W' character can only be specified when the
+ * day-of-month is a single day, not a range or list of days.
+ *
+ * @author Michael Dowling <mtdowling@gmail.com>
+ */
+class DayOfMonthField extends AbstractField
+{
+    /**
+     * @inheritDoc
+     */
+    protected $rangeStart = 1;
+
+    /**
+     * @inheritDoc
+     */
+    protected $rangeEnd = 31;
+
+    /**
+     * Get the nearest day of the week for a given day in a month
+     *
+     * @param int $currentYear  Current year
+     * @param int $currentMonth Current month
+     * @param int $targetDay    Target day of the month
+     *
+     * @return \DateTime Returns the nearest date
+     */
+    private static function getNearestWeekday($currentYear, $currentMonth, $targetDay)
+    {
+        $tday = str_pad($targetDay, 2, '0', STR_PAD_LEFT);
+        $target = DateTime::createFromFormat('Y-m-d', "$currentYear-$currentMonth-$tday");
+        $currentWeekday = (int) $target->format('N');
+
+        if ($currentWeekday < 6) {
+            return $target;
+        }
+
+        $lastDayOfMonth = $target->format('t');
+
+        foreach (array(-1, 1, -2, 2) as $i) {
+            $adjusted = $targetDay + $i;
+            if ($adjusted > 0 && $adjusted <= $lastDayOfMonth) {
+                $target->setDate($currentYear, $currentMonth, $adjusted);
+                if ($target->format('N') < 6 && $target->format('m') == $currentMonth) {
+                    return $target;
+                }
+            }
+        }
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function isSatisfiedBy(DateTimeInterface $date, $value)
+    {
+        // ? states that the field value is to be skipped
+        if ($value == '?') {
+            return true;
+        }
+
+        $fieldValue = $date->format('d');
+
+        // Check to see if this is the last day of the month
+        if ($value == 'L') {
+            return $fieldValue == $date->format('t');
+        }
+
+        // Check to see if this is the nearest weekday to a particular value
+        if (strpos($value, 'W')) {
+            // Parse the target day
+            $targetDay = substr($value, 0, strpos($value, 'W'));
+            // Find out if the current day is the nearest day of the week
+            return $date->format('j') == self::getNearestWeekday(
+                $date->format('Y'),
+                $date->format('m'),
+                $targetDay
+            )->format('j');
+        }
+
+        return $this->isSatisfied($date->format('d'), $value);
+    }
+
+    /**
+     * @inheritDoc
+     *
+     * @param \DateTime|\DateTimeImmutable &$date
+     */
+    public function increment(DateTimeInterface &$date, $invert = false)
+    {
+        if ($invert) {
+            $date = $date->modify('previous day')->setTime(23, 59);
+        } else {
+            $date = $date->modify('next day')->setTime(0, 0);
+        }
+
+        return $this;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function validate($value)
+    {
+        $basicChecks = parent::validate($value);
+
+        // Validate that a list don't have W or L
+        if (strpos($value, ',') !== false && (strpos($value, 'W') !== false || strpos($value, 'L') !== false)) {
+            return false;
+        }
+
+        if (!$basicChecks) {
+
+            if ($value === 'L') {
+                return true;
+            }
+
+            if (preg_match('/^(.*)W$/', $value, $matches)) {
+                return $this->validate($matches[1]);
+            }
+
+            return false;
+        }
+
+        return $basicChecks;
+    }
+}
diff --git a/vendor/dragonmantank/cron-expression/src/Cron/DayOfWeekField.php b/vendor/dragonmantank/cron-expression/src/Cron/DayOfWeekField.php
new file mode 100644
index 0000000..d4ba315
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/src/Cron/DayOfWeekField.php
@@ -0,0 +1,196 @@
+<?php
+
+namespace Cron;
+
+use DateTime;
+use DateTimeInterface;
+use InvalidArgumentException;
+
+/**
+ * Day of week field.  Allows: * / , - ? L #
+ *
+ * Days of the week can be represented as a number 0-7 (0|7 = Sunday)
+ * or as a three letter string: SUN, MON, TUE, WED, THU, FRI, SAT.
+ *
+ * 'L' stands for "last". It allows you to specify constructs such as
+ * "the last Friday" of a given month.
+ *
+ * '#' is allowed for the day-of-week field, and must be followed by a
+ * number between one and five. It allows you to specify constructs such as
+ * "the second Friday" of a given month.
+ */
+class DayOfWeekField extends AbstractField
+{
+    /**
+     * @inheritDoc
+     */
+    protected $rangeStart = 0;
+
+    /**
+     * @inheritDoc
+     */
+    protected $rangeEnd = 7;
+
+    /**
+     * @var array Weekday range
+     */
+    protected $nthRange;
+
+    /**
+     * @inheritDoc
+     */
+    protected $literals = [1 => 'MON', 2 => 'TUE', 3 => 'WED', 4 => 'THU', 5 => 'FRI', 6 => 'SAT', 7 => 'SUN'];
+
+    /**
+     * Constructor
+     */
+    public function __construct()
+    {
+        $this->nthRange = range(1, 5);
+        parent::__construct();
+    }
+
+    /**
+     * @inheritDoc
+     *
+     * @param \DateTime|\DateTimeImmutable $date
+     */
+    public function isSatisfiedBy(DateTimeInterface $date, $value)
+    {
+        if ($value == '?') {
+            return true;
+        }
+
+        // Convert text day of the week values to integers
+        $value = $this->convertLiterals($value);
+
+        $currentYear = $date->format('Y');
+        $currentMonth = $date->format('m');
+        $lastDayOfMonth = $date->format('t');
+
+        // Find out if this is the last specific weekday of the month
+        if (strpos($value, 'L')) {
+            $weekday = (int) $this->convertLiterals(substr($value, 0, strpos($value, 'L')));
+            $weekday %= 7;
+
+            $tdate = clone $date;
+            $tdate = $tdate->setDate($currentYear, $currentMonth, $lastDayOfMonth);
+            while ($tdate->format('w') != $weekday) {
+                $tdateClone = new DateTime();
+                $tdate = $tdateClone
+                    ->setTimezone($tdate->getTimezone())
+                    ->setDate($currentYear, $currentMonth, --$lastDayOfMonth);
+            }
+
+            return $date->format('j') == $lastDayOfMonth;
+        }
+
+        // Handle # hash tokens
+        if (strpos($value, '#')) {
+            list($weekday, $nth) = explode('#', $value);
+
+            if (!is_numeric($nth)) {
+                throw new InvalidArgumentException("Hashed weekdays must be numeric, {$nth} given");
+            } else {
+                $nth = (int) $nth;
+            }
+
+            // 0 and 7 are both Sunday, however 7 matches date('N') format ISO-8601
+            if ($weekday === '0') {
+                $weekday = 7;
+            }
+
+            $weekday = $this->convertLiterals($weekday);
+
+            // Validate the hash fields
+            if ($weekday < 0 || $weekday > 7) {
+                throw new InvalidArgumentException("Weekday must be a value between 0 and 7. {$weekday} given");
+            }
+
+            if (!in_array($nth, $this->nthRange)) {
+                throw new InvalidArgumentException("There are never more than 5 or less than 1 of a given weekday in a month, {$nth} given");
+            }
+
+            // The current weekday must match the targeted weekday to proceed
+            if ($date->format('N') != $weekday) {
+                return false;
+            }
+
+            $tdate = clone $date;
+            $tdate = $tdate->setDate($currentYear, $currentMonth, 1);
+            $dayCount = 0;
+            $currentDay = 1;
+            while ($currentDay < $lastDayOfMonth + 1) {
+                if ($tdate->format('N') == $weekday) {
+                    if (++$dayCount >= $nth) {
+                        break;
+                    }
+                }
+                $tdate = $tdate->setDate($currentYear, $currentMonth, ++$currentDay);
+            }
+
+            return $date->format('j') == $currentDay;
+        }
+
+        // Handle day of the week values
+        if (strpos($value, '-')) {
+            $parts = explode('-', $value);
+            if ($parts[0] == '7') {
+                $parts[0] = '0';
+            } elseif ($parts[1] == '0') {
+                $parts[1] = '7';
+            }
+            $value = implode('-', $parts);
+        }
+
+        // Test to see which Sunday to use -- 0 == 7 == Sunday
+        $format = in_array(7, str_split($value)) ? 'N' : 'w';
+        $fieldValue = $date->format($format);
+
+        return $this->isSatisfied($fieldValue, $value);
+    }
+
+    /**
+     * @inheritDoc
+     *
+     * @param \DateTime|\DateTimeImmutable &$date
+     */
+    public function increment(DateTimeInterface &$date, $invert = false)
+    {
+        if ($invert) {
+            $date = $date->modify('-1 day')->setTime(23, 59, 0);
+        } else {
+            $date = $date->modify('+1 day')->setTime(0, 0, 0);
+        }
+
+        return $this;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function validate($value)
+    {
+        $basicChecks = parent::validate($value);
+
+        if (!$basicChecks) {
+            // Handle the # value
+            if (strpos($value, '#') !== false) {
+                $chunks = explode('#', $value);
+                $chunks[0] = $this->convertLiterals($chunks[0]);
+
+                if (parent::validate($chunks[0]) && is_numeric($chunks[1]) && in_array($chunks[1], $this->nthRange)) {
+                    return true;
+                }
+            }
+
+            if (preg_match('/^(.*)L$/', $value, $matches)) {
+                return $this->validate($matches[1]);
+            }
+
+            return false;
+        }
+
+        return $basicChecks;
+    }
+}
diff --git a/vendor/dragonmantank/cron-expression/src/Cron/FieldFactory.php b/vendor/dragonmantank/cron-expression/src/Cron/FieldFactory.php
new file mode 100644
index 0000000..545e4b8
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/src/Cron/FieldFactory.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Cron;
+
+use InvalidArgumentException;
+
+/**
+ * CRON field factory implementing a flyweight factory
+ * @link http://en.wikipedia.org/wiki/Cron
+ */
+class FieldFactory
+{
+    /**
+     * @var array Cache of instantiated fields
+     */
+    private $fields = array();
+
+    /**
+     * Get an instance of a field object for a cron expression position
+     *
+     * @param int $position CRON expression position value to retrieve
+     *
+     * @return FieldInterface
+     * @throws InvalidArgumentException if a position is not valid
+     */
+    public function getField($position)
+    {
+        if (!isset($this->fields[$position])) {
+            switch ($position) {
+                case 0:
+                    $this->fields[$position] = new MinutesField();
+                    break;
+                case 1:
+                    $this->fields[$position] = new HoursField();
+                    break;
+                case 2:
+                    $this->fields[$position] = new DayOfMonthField();
+                    break;
+                case 3:
+                    $this->fields[$position] = new MonthField();
+                    break;
+                case 4:
+                    $this->fields[$position] = new DayOfWeekField();
+                    break;
+                default:
+                    throw new InvalidArgumentException(
+                        ($position + 1) . ' is not a valid position'
+                    );
+            }
+        }
+
+        return $this->fields[$position];
+    }
+}
diff --git a/vendor/dragonmantank/cron-expression/src/Cron/FieldInterface.php b/vendor/dragonmantank/cron-expression/src/Cron/FieldInterface.php
new file mode 100644
index 0000000..f8366ea
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/src/Cron/FieldInterface.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace Cron;
+
+use DateTimeInterface;
+
+/**
+ * CRON field interface
+ */
+interface FieldInterface
+{
+    /**
+     * Check if the respective value of a DateTime field satisfies a CRON exp
+     *
+     * @param DateTimeInterface $date  DateTime object to check
+     * @param string            $value CRON expression to test against
+     *
+     * @return bool Returns TRUE if satisfied, FALSE otherwise
+     */
+    public function isSatisfiedBy(DateTimeInterface $date, $value);
+
+    /**
+     * When a CRON expression is not satisfied, this method is used to increment
+     * or decrement a DateTime object by the unit of the cron field
+     *
+     * @param DateTimeInterface &$date  DateTime object to change
+     * @param bool              $invert (optional) Set to TRUE to decrement
+     *
+     * @return FieldInterface
+     */
+    public function increment(DateTimeInterface &$date, $invert = false);
+
+    /**
+     * Validates a CRON expression for a given field
+     *
+     * @param string $value CRON expression value to validate
+     *
+     * @return bool Returns TRUE if valid, FALSE otherwise
+     */
+    public function validate($value);
+}
diff --git a/vendor/dragonmantank/cron-expression/src/Cron/HoursField.php b/vendor/dragonmantank/cron-expression/src/Cron/HoursField.php
new file mode 100644
index 0000000..628218a
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/src/Cron/HoursField.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace Cron;
+
+use DateTimeInterface;
+use DateTimeZone;
+
+/**
+ * Hours field.  Allows: * , / -
+ */
+class HoursField extends AbstractField
+{
+    /**
+     * @inheritDoc
+     */
+    protected $rangeStart = 0;
+
+    /**
+     * @inheritDoc
+     */
+    protected $rangeEnd = 23;
+
+    /**
+     * @inheritDoc
+     */
+    public function isSatisfiedBy(DateTimeInterface $date, $value)
+    {
+        if ($value == '?') {
+            return true;
+        }
+
+        return $this->isSatisfied($date->format('H'), $value);
+    }
+
+    /**
+     * {@inheritDoc}
+     *
+     * @param \DateTime|\DateTimeImmutable &$date
+     * @param string|null                  $parts
+     */
+    public function increment(DateTimeInterface &$date, $invert = false, $parts = null)
+    {
+        // Change timezone to UTC temporarily. This will
+        // allow us to go back or forwards and hour even
+        // if DST will be changed between the hours.
+        if (is_null($parts) || $parts == '*') {
+            $timezone = $date->getTimezone();
+            $date = $date->setTimezone(new DateTimeZone('UTC'));
+            $date = $date->modify(($invert ? '-' : '+') . '1 hour');
+            $date = $date->setTimezone($timezone);
+
+            $date = $date->setTime($date->format('H'), $invert ? 59 : 0);
+            return $this;
+        }
+
+        $parts = strpos($parts, ',') !== false ? explode(',', $parts) : array($parts);
+        $hours = array();
+        foreach ($parts as $part) {
+            $hours = array_merge($hours, $this->getRangeForExpression($part, 23));
+        }
+
+        $current_hour = $date->format('H');
+        $position = $invert ? count($hours) - 1 : 0;
+        if (count($hours) > 1) {
+            for ($i = 0; $i < count($hours) - 1; $i++) {
+                if ((!$invert && $current_hour >= $hours[$i] && $current_hour < $hours[$i + 1]) ||
+                    ($invert && $current_hour > $hours[$i] && $current_hour <= $hours[$i + 1])) {
+                    $position = $invert ? $i : $i + 1;
+                    break;
+                }
+            }
+        }
+
+        $hour = $hours[$position];
+        if ((!$invert && $date->format('H') >= $hour) || ($invert && $date->format('H') <= $hour)) {
+            $date = $date->modify(($invert ? '-' : '+') . '1 day');
+            $date = $date->setTime($invert ? 23 : 0, $invert ? 59 : 0);
+        }
+        else {
+            $date = $date->setTime($hour, $invert ? 59 : 0);
+        }
+
+        return $this;
+    }
+}
diff --git a/vendor/dragonmantank/cron-expression/src/Cron/MinutesField.php b/vendor/dragonmantank/cron-expression/src/Cron/MinutesField.php
new file mode 100644
index 0000000..fecc9b6
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/src/Cron/MinutesField.php
@@ -0,0 +1,75 @@
+<?php
+
+namespace Cron;
+
+use DateTimeInterface;
+
+/**
+ * Minutes field.  Allows: * , / -
+ */
+class MinutesField extends AbstractField
+{
+    /**
+     * @inheritDoc
+     */
+    protected $rangeStart = 0;
+
+    /**
+     * @inheritDoc
+     */
+    protected $rangeEnd = 59;
+
+    /**
+     * @inheritDoc
+     */
+    public function isSatisfiedBy(DateTimeInterface $date, $value)
+    {
+        if ($value == '?') {
+            return true;
+        }
+
+        return $this->isSatisfied($date->format('i'), $value);
+    }
+
+    /**
+     * {@inheritDoc}
+     *
+     * @param \DateTime|\DateTimeImmutable &$date
+     * @param string|null                  $parts
+     */
+    public function increment(DateTimeInterface &$date, $invert = false, $parts = null)
+    {
+        if (is_null($parts)) {
+            $date = $date->modify(($invert ? '-' : '+') . '1 minute');
+            return $this;
+        }
+
+        $parts = strpos($parts, ',') !== false ? explode(',', $parts) : array($parts);
+        $minutes = array();
+        foreach ($parts as $part) {
+            $minutes = array_merge($minutes, $this->getRangeForExpression($part, 59));
+        }
+
+        $current_minute = $date->format('i');
+        $position = $invert ? count($minutes) - 1 : 0;
+        if (count($minutes) > 1) {
+            for ($i = 0; $i < count($minutes) - 1; $i++) {
+                if ((!$invert && $current_minute >= $minutes[$i] && $current_minute < $minutes[$i + 1]) ||
+                    ($invert && $current_minute > $minutes[$i] && $current_minute <= $minutes[$i + 1])) {
+                    $position = $invert ? $i : $i + 1;
+                    break;
+                }
+            }
+        }
+
+        if ((!$invert && $current_minute >= $minutes[$position]) || ($invert && $current_minute <= $minutes[$position])) {
+            $date = $date->modify(($invert ? '-' : '+') . '1 hour');
+            $date = $date->setTime($date->format('H'), $invert ? 59 : 0);
+        }
+        else {
+            $date = $date->setTime($date->format('H'), $minutes[$position]);
+        }
+
+        return $this;
+    }
+}
diff --git a/vendor/dragonmantank/cron-expression/src/Cron/MonthField.php b/vendor/dragonmantank/cron-expression/src/Cron/MonthField.php
new file mode 100644
index 0000000..afc9caf
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/src/Cron/MonthField.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace Cron;
+
+use DateTimeInterface;
+
+/**
+ * Month field.  Allows: * , / -
+ */
+class MonthField extends AbstractField
+{
+    /**
+     * @inheritDoc
+     */
+    protected $rangeStart = 1;
+
+    /**
+     * @inheritDoc
+     */
+    protected $rangeEnd = 12;
+
+    /**
+     * @inheritDoc
+     */
+    protected $literals = [1 => 'JAN', 2 => 'FEB', 3 => 'MAR', 4 => 'APR', 5 => 'MAY', 6 => 'JUN', 7 => 'JUL',
+        8 => 'AUG', 9 => 'SEP', 10 => 'OCT', 11 => 'NOV', 12 => 'DEC'];
+
+    /**
+     * @inheritDoc
+     */
+    public function isSatisfiedBy(DateTimeInterface $date, $value)
+    {
+        if ($value == '?') {
+            return true;
+        }
+
+        $value = $this->convertLiterals($value);
+
+        return $this->isSatisfied($date->format('m'), $value);
+    }
+
+    /**
+     * @inheritDoc
+     *
+     * @param \DateTime|\DateTimeImmutable &$date
+     */
+    public function increment(DateTimeInterface &$date, $invert = false)
+    {
+        if ($invert) {
+            $date = $date->modify('last day of previous month')->setTime(23, 59);
+        } else {
+            $date = $date->modify('first day of next month')->setTime(0, 0);
+        }
+
+        return $this;
+    }
+
+
+}