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<?php
// Classes for Gedcom Date/Calendar functionality.
//
// Definitions for the Jalali calendar
//
// NOTE: Since different calendars start their days at different times, (civil
// midnight, solar midnight, sunset, sunrise, etc.), we convert on the basis of
// midday.
//
// webtrees: Web based Family History software
// Copyright (C) 2011 webtrees development team.
//
// 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 2 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, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// $Id$
if (!defined('WT_WEBTREES')) {
header('HTTP/1.0 403 Forbidden');
exit;
}
class WT_Date_Jalali extends WT_Date_Calendar {
static function CALENDAR_ESCAPE() {
return '@#DJALALI@';
}
static function calendarName() {
return /* I18N: The Persian/Jalali calendar */ WT_I18N::translate('Jalali');
}
static function MONTH_TO_NUM($m) {
static $months=array(''=>0, 'farva'=>1, 'ordib'=>2, 'khord'=>3, 'tir'=>4, 'morda'=>5, 'shahr'=>6, 'mehr'=>7, 'aban'=>8, 'azar'=>9, 'dey'=>10, 'bahma'=>11, 'esfan'=>12);
if (isset($months[$m])) {
return $months[$m];
} else {
return null;
}
}
static function NUM_TO_MONTH_NOMINATIVE($n, $leap_year) {
switch ($n) {
case 1: return /* I18N: 1st month in the Persian/Jalali calendar */ WT_I18N::translate_c('NOMINATIVE', 'Farvardin' );
case 2: return /* I18N: 2nd month in the Persian/Jalali calendar */ WT_I18N::translate_c('NOMINATIVE', 'Ordibehest');
case 3: return /* I18N: 3rd month in the Persian/Jalali calendar */ WT_I18N::translate_c('NOMINATIVE', 'Khordad' );
case 4: return /* I18N: 4th month in the Persian/Jalali calendar */ WT_I18N::translate_c('NOMINATIVE', 'Tir' );
case 5: return /* I18N: 5th month in the Persian/Jalali calendar */ WT_I18N::translate_c('NOMINATIVE', 'Mordad' );
case 6: return /* I18N: 6th month in the Persian/Jalali calendar */ WT_I18N::translate_c('NOMINATIVE', 'Shahrivar' );
case 7: return /* I18N: 7th month in the Persian/Jalali calendar */ WT_I18N::translate_c('NOMINATIVE', 'Mehr' );
case 8: return /* I18N: 8th month in the Persian/Jalali calendar */ WT_I18N::translate_c('NOMINATIVE', 'Aban' );
case 9: return /* I18N: 9th month in the Persian/Jalali calendar */ WT_I18N::translate_c('NOMINATIVE', 'Azar' );
case 10: return /* I18N: 10th month in the Persian/Jalali calendar */ WT_I18N::translate_c('NOMINATIVE', 'Dey' );
case 11: return /* I18N: 11th month in the Persian/Jalali calendar */ WT_I18N::translate_c('NOMINATIVE', 'Bahman' );
case 12: return /* I18N: 12th month in the Persian/Jalali calendar */ WT_I18N::translate_c('NOMINATIVE', 'Esfand' );
default: return '';
}
}
static function NUM_TO_MONTH_GENITIVE($n, $leap_year) {
switch ($n) {
case 1: return /* I18N: 1st month in the Persian/Jalali calendar */ WT_I18N::translate_c('GENITIVE', 'Farvardin' );
case 2: return /* I18N: 2nd month in the Persian/Jalali calendar */ WT_I18N::translate_c('GENITIVE', 'Ordibehesht');
case 3: return /* I18N: 3rd month in the Persian/Jalali calendar */ WT_I18N::translate_c('GENITIVE', 'Khordad' );
case 4: return /* I18N: 4th month in the Persian/Jalali calendar */ WT_I18N::translate_c('GENITIVE', 'Tir' );
case 5: return /* I18N: 5th month in the Persian/Jalali calendar */ WT_I18N::translate_c('GENITIVE', 'Mordad' );
case 6: return /* I18N: 6th month in the Persian/Jalali calendar */ WT_I18N::translate_c('GENITIVE', 'Shahrivar' );
case 7: return /* I18N: 7th month in the Persian/Jalali calendar */ WT_I18N::translate_c('GENITIVE', 'Mehr' );
case 8: return /* I18N: 8th month in the Persian/Jalali calendar */ WT_I18N::translate_c('GENITIVE', 'Aban' );
case 9: return /* I18N: 9th month in the Persian/Jalali calendar */ WT_I18N::translate_c('GENITIVE', 'Azar' );
case 10: return /* I18N: 10th month in the Persian/Jalali calendar */ WT_I18N::translate_c('GENITIVE', 'Dey' );
case 11: return /* I18N: 11th month in the Persian/Jalali calendar */ WT_I18N::translate_c('GENITIVE', 'Bahman' );
case 12: return /* I18N: 12th month in the Persian/Jalali calendar */ WT_I18N::translate_c('GENITIVE', 'Esfand' );
default: return '';
}
}
static function NUM_TO_MONTH_LOCATIVE($n, $leap_year) {
switch ($n) {
case 1: return /* I18N: 1st month in the Persian/Jalali calendar */ WT_I18N::translate_c('LOCATIVE', 'Farvardin' );
case 2: return /* I18N: 2nd month in the Persian/Jalali calendar */ WT_I18N::translate_c('LOCATIVE', 'Ordibehesht');
case 3: return /* I18N: 3rd month in the Persian/Jalali calendar */ WT_I18N::translate_c('LOCATIVE', 'Khordad' );
case 4: return /* I18N: 4th month in the Persian/Jalali calendar */ WT_I18N::translate_c('LOCATIVE', 'Tir' );
case 5: return /* I18N: 5th month in the Persian/Jalali calendar */ WT_I18N::translate_c('LOCATIVE', 'Mordad' );
case 6: return /* I18N: 6th month in the Persian/Jalali calendar */ WT_I18N::translate_c('LOCATIVE', 'Shahrivar' );
case 7: return /* I18N: 7th month in the Persian/Jalali calendar */ WT_I18N::translate_c('LOCATIVE', 'Mehr' );
case 8: return /* I18N: 8th month in the Persian/Jalali calendar */ WT_I18N::translate_c('LOCATIVE', 'Aban' );
case 9: return /* I18N: 9th month in the Persian/Jalali calendar */ WT_I18N::translate_c('LOCATIVE', 'Azar' );
case 10: return /* I18N: 10th month in the Persian/Jalali calendar */ WT_I18N::translate_c('LOCATIVE', 'Dey' );
case 11: return /* I18N: 11th month in the Persian/Jalali calendar */ WT_I18N::translate_c('LOCATIVE', 'Bahman' );
case 12: return /* I18N: 12th month in the Persian/Jalali calendar */ WT_I18N::translate_c('LOCATIVE', 'Esfand' );
default: return '';
}
}
static function NUM_TO_MONTH_INSTRUMENTAL($n, $leap_year) {
switch ($n) {
case 1: return /* I18N: 1st month in the Persian/Jalali calendar */ WT_I18N::translate_c('INSTRUMENTAL', 'Farvardin' );
case 2: return /* I18N: 2nd month in the Persian/Jalali calendar */ WT_I18N::translate_c('INSTRUMENTAL', 'Ordibehesht');
case 3: return /* I18N: 3rd month in the Persian/Jalali calendar */ WT_I18N::translate_c('INSTRUMENTAL', 'Khordad' );
case 4: return /* I18N: 4th month in the Persian/Jalali calendar */ WT_I18N::translate_c('INSTRUMENTAL', 'Tir' );
case 5: return /* I18N: 5th month in the Persian/Jalali calendar */ WT_I18N::translate_c('INSTRUMENTAL', 'Mordad' );
case 6: return /* I18N: 6th month in the Persian/Jalali calendar */ WT_I18N::translate_c('INSTRUMENTAL', 'Shahrivar' );
case 7: return /* I18N: 7th month in the Persian/Jalali calendar */ WT_I18N::translate_c('INSTRUMENTAL', 'Mehr' );
case 8: return /* I18N: 8th month in the Persian/Jalali calendar */ WT_I18N::translate_c('INSTRUMENTAL', 'Aban' );
case 9: return /* I18N: 9th month in the Persian/Jalali calendar */ WT_I18N::translate_c('INSTRUMENTAL', 'Azar' );
case 10: return /* I18N: 10th month in the Persian/Jalali calendar */ WT_I18N::translate_c('INSTRUMENTAL', 'Dey' );
case 11: return /* I18N: 11th month in the Persian/Jalali calendar */ WT_I18N::translate_c('INSTRUMENTAL', 'Bahman' );
case 12: return /* I18N: 12th month in the Persian/Jalali calendar */ WT_I18N::translate_c('INSTRUMENTAL', 'Esfand' );
default: return '';
}
}
static function NUM_TO_SHORT_MONTH($n, $leap_year) {
switch ($n) {
case 1: return WT_I18N::translate_c('Abbreviation for Persian month: Farvardin', 'Far' );
case 2: return WT_I18N::translate_c('Abbreviation for Persian month: Ordibehesht', 'Ord' );
case 3: return WT_I18N::translate_c('Abbreviation for Persian month: Khordad', 'Khor');
case 4: return WT_I18N::translate_c('Abbreviation for Persian month: Tir', 'Tir' );
case 5: return WT_I18N::translate_c('Abbreviation for Persian month: Mordad', 'Mor' );
case 6: return WT_I18N::translate_c('Abbreviation for Persian month: Shahrivar', 'Shah');
case 7: return WT_I18N::translate_c('Abbreviation for Persian month: Mehr', 'Mehr');
case 8: return WT_I18N::translate_c('Abbreviation for Persian month: Aban', 'Aban');
case 9: return WT_I18N::translate_c('Abbreviation for Persian month: Azar', 'Azar');
case 10: return WT_I18N::translate_c('Abbreviation for Persian month: Dey', 'Dey' );
case 11: return WT_I18N::translate_c('Abbreviation for Persian month: Bahman', 'Bah' );
case 12: return WT_I18N::translate_c('Abbreviation for Persian month: Esfand', 'Esf' );
default: return '';
}
}
static function NUM_TO_GEDCOM_MONTH($n, $leap_year) {
switch ($n) {
case 1: return 'FARVA';
case 2: return 'ORDIB';
case 3: return 'KHORD';
case 4: return 'TIR';
case 5: return 'MORDA';
case 6: return 'SHAHR';
case 7: return 'MEHR';
case 8: return 'ABAN';
case 9: return 'AZAR';
case 10: return 'DEY';
case 11: return 'BAHMA';
case 12: return 'ESFAN';
default: return '';
}
}
static function mod($a, $b){
return $a - ($b * floor($a / $b));
}
static function CAL_START_JD() {
return 1948321;
}
function IsLeapYear() {
return (((((($this->y - (($this->y > 0) ? 474 : 473)) % 2820) + 474) + 38) * 682) % 2816) < 682;
}
static function YMDtoJD($year, $month, $day) {
$epbase = $year - (($year >= 0) ? 474 : 473);
$epyear = 474 + self::mod($epbase, 2820);
return $day +
(($month <= 7) ?
(($month - 1) * 31) :
((($month - 1) * 30) + 6)
) +
floor((($epyear * 682) - 110) / 2816) +
($epyear - 1) * 365 +
floor($epbase / 2820) * 1029983 +
(self::CAL_START_JD() - 1);
}
static function JDtoYMD($jd) {
$jd = floor($jd) + 0.5;
$depoch = $jd - self::YMDtoJD(475, 1, 1);
$cycle = floor($depoch / 1029983);
$cyear = self::mod($depoch, 1029983);
if ($cyear == 1029982) {
$ycycle = 2820;
} else {
$aux1 = floor($cyear / 366);
$aux2 = self::mod($cyear, 366);
$ycycle = floor(((2134 * $aux1) + (2816 * $aux2) + 2815) / 1028522) +
$aux1 + 1;
}
$year = $ycycle + (2820 * $cycle) + 474;
if ($year <= 0) {
$year--;
}
$yday = ($jd - self::YMDtoJD($year, 1, 1)) + 1;
$month = ($yday <= 186) ? ceil($yday / 31) : ceil(($yday - 6) / 30);
$day = ($jd - self::YMDtoJD($year, $month, 1)) + 1;
return array($year, (int)$month, (int)$day);
}
}
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