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Diffstat (limited to 'vendor/fisharebest/ext-calendar/src/PersianCalendar.php')
| -rw-r--r-- | vendor/fisharebest/ext-calendar/src/PersianCalendar.php | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/vendor/fisharebest/ext-calendar/src/PersianCalendar.php b/vendor/fisharebest/ext-calendar/src/PersianCalendar.php deleted file mode 100644 index c208d2fb73..0000000000 --- a/vendor/fisharebest/ext-calendar/src/PersianCalendar.php +++ /dev/null @@ -1,200 +0,0 @@ -<?php -namespace Fisharebest\ExtCalendar; - -use InvalidArgumentException; - -/** - * Class PersianCalendar - calculations for the Persian (Jalali) calendar. - * - * Algorithms for Julian days based on https://www.fourmilab.ch/documents/calendar/ - * - * @author Greg Roach <fisharebest@gmail.com> - * @copyright (c) 2014-2017 Greg Roach - * @license This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -class PersianCalendar implements CalendarInterface -{ - /** - * In each 128 year cycle, the following years are leap years. - * - * @var int[] - */ - private static $LEAP_YEAR_CYCLE = array( - 0, 5, 9, 13, 17, 21, 25, 29, 34, 38, 42, 46, 50, 54, 58, 62, 67, 71, 75, 79, 83, 87, 91, 95, 100, 104, 108, 112, 116, 120, 124 - ); - - /** - * Determine the number of days in a specified month, allowing for leap years, etc. - * - * @param int $year - * @param int $month - * - * @return int - */ - public function daysInMonth($year, $month) - { - if ($month <= 6) { - return 31; - } elseif ($month <= 11 || $this->isLeapYear($year)) { - return 30; - } else { - return 29; - } - } - - /** - * Determine the number of days in a week. - * - * @return int - */ - public function daysInWeek() - { - return 7; - } - - /** - * The escape sequence used to indicate this calendar in GEDCOM files. - * - * @return string - */ - public function gedcomCalendarEscape() - { - return '@#DJALALI@'; - } - - /** - * Determine whether or not a given year is a leap-year. - * - * @param int $year - * - * @return bool - */ - public function isLeapYear($year) - { - return in_array((($year + 2346) % 2820) % 128, self::$LEAP_YEAR_CYCLE); - } - - /** - * What is the highest Julian day number that can be converted into this calendar. - * - * @return int - */ - public function jdEnd() - { - return PHP_INT_MAX; - } - - /** - * What is the lowest Julian day number that can be converted into this calendar. - * - * @return int - */ - public function jdStart() - { - return 1948321; // 1 Farvardīn 0001 AP, 19 MAR 0622 AD - } - - /** - * Convert a Julian day number into a year/month/day. - * - * @param int $julian_day - * - * @return int[] - */ - public function jdToYmd($julian_day) - { - $depoch = $julian_day - 2121446; // 1 Farvardīn 475 - $cycle = (int) floor($depoch / 1029983); - $cyear = $this->mod($depoch, 1029983); - if ($cyear == 1029982) { - $ycycle = 2820; - } else { - $aux1 = (int) ($cyear / 366); - $aux2 = $cyear % 366; - $ycycle = (int) (((2134 * $aux1) + (2816 * $aux2) + 2815) / 1028522) + $aux1 + 1; - } - $year = $ycycle + (2820 * $cycle) + 474; - - // If we allowed negative years, we would deal with them here. - $yday = $julian_day - $this->ymdToJd($year, 1, 1) + 1; - $month = ($yday <= 186) ? ceil($yday / 31) : ceil(($yday - 6) / 30); - $day = $julian_day - $this->ymdToJd($year, $month, 1) + 1; - - return array((int) $year, (int) $month, (int) $day); - } - - /** - * Determine the number of months in a year (if given), - * or the maximum number of months in any year. - * - * @param int|null $year - * - * @return int - */ - public function monthsInYear($year = null) - { - return 12; - } - - /** - * Convert a year/month/day to a Julian day number. - * - * @param int $year - * @param int $month - * @param int $day - * - * @return int - */ - public function ymdToJd($year, $month, $day) - { - if ($month < 1 || $month > $this->monthsInYear()) { - throw new InvalidArgumentException('Month ' . $month . ' is invalid for this calendar'); - } - - $epbase = $year - (($year >= 0) ? 474 : 473); - $epyear = 474 + $this->mod($epbase, 2820); - - return - $day + - (($month <= 7) ? (($month - 1) * 31) : ((($month - 1) * 30) + 6)) + - (int) ((($epyear * 682) - 110) / 2816) + - ($epyear - 1) * 365 + - (int) (floor($epbase / 2820)) * 1029983 + - $this->jdStart() - 1; - } - - /** - * The PHP modulus function returns a negative modulus for a negative dividend. - * This algorithm requires a "traditional" modulus function where the modulus is - * always positive. - * - * @param int $dividend - * @param int $divisor - * - * @return int - */ - public function mod($dividend, $divisor) - { - if ($divisor === 0) { - return 0; - } - - $modulus = $dividend % $divisor; - if ($modulus < 0) { - $modulus += $divisor; - } - - return $modulus; - } -} |