mirror of
https://github.com/YunoHost-Apps/webtrees_ynh.git
synced 2024-09-03 18:26:37 +02:00
944 lines
25 KiB
PHP
944 lines
25 KiB
PHP
<?php
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/**
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* webtrees: online genealogy
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* Copyright (C) 2016 webtrees development team
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace Fisharebest\Webtrees\Date;
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use FishareBest\ExtCalendar\CalendarInterface;
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use FishareBest\ExtCalendar\JewishCalendar;
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use Fisharebest\Webtrees\I18N;
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/**
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* Classes for Gedcom Date/Calendar functionality.
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*
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* CalendarDate is a base class for classes such as GregorianDate, etc.
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* + All supported calendars have non-zero days/months/years.
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* + We store dates as both Y/M/D and Julian Days.
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* + For imprecise dates such as "JAN 2000" we store the start/end julian day.
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*
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* NOTE: Since different calendars start their days at different times, (civil
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* midnight, solar midnight, sunset, sunrise, etc.), we convert on the basis of
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* midday.
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*/
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class CalendarDate {
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/** @var int[] Convert GEDCOM month names to month numbers */
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public static $MONTH_ABBREV = array('' => 0, 'JAN' => 1, 'FEB' => 2, 'MAR' => 3, 'APR' => 4, 'MAY' => 5, 'JUN' => 6, 'JUL' => 7, 'AUG' => 8, 'SEP' => 9, 'OCT' => 10, 'NOV' => 11, 'DEC' => 12);
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/** @var string[] Convert numbers to/from roman numerals */
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protected static $roman_numerals = array(1000 => 'M', 900 => 'CM', 500 => 'D', 400 => 'CD', 100 => 'C', 90 => 'XC', 50 => 'L', 40 => 'XL', 10 => 'X', 9 => 'IX', 5 => 'V', 4 => 'IV', 1 => 'I');
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/** @var CalendarInterface The calendar system used to represent this date */
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protected $calendar;
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/** @var int Year number */
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public $y;
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/** @var int Month number */
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public $m;
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/** @var int Day number */
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public $d;
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/** @var int Earliest Julian day number (start of month/year for imprecise dates) */
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public $minJD;
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/** @var int Latest Julian day number (end of month/year for imprecise dates) */
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public $maxJD;
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/**
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* Create a date from either:
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* a Julian day number
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* day/month/year strings from a GEDCOM date
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* another CalendarDate object
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*
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* @param array|int|CalendarDate $date
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*/
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public function __construct($date) {
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// Construct from an integer (a julian day number)
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if (is_integer($date)) {
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$this->minJD = $date;
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$this->maxJD = $date;
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list($this->y, $this->m, $this->d) = $this->calendar->jdToYmd($date);
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return;
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}
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// Construct from an array (of three gedcom-style strings: "1900", "FEB", "4")
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if (is_array($date)) {
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$this->d = (int) $date[2];
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if (array_key_exists($date[1], static::$MONTH_ABBREV)) {
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$this->m = static::$MONTH_ABBREV[$date[1]];
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} else {
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$this->m = 0;
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$this->d = 0;
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}
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$this->y = $this->extractYear($date[0]);
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// Our simple lookup table above does not take into account Adar and leap-years.
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if ($this->m === 6 && $this->calendar instanceof JewishCalendar && !$this->calendar->isLeapYear($this->y)) {
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$this->m = 7;
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}
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$this->setJdFromYmd();
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return;
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}
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// Construct from an equivalent xxxxDate object
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if (get_class($this) == get_class($date)) {
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$this->y = $date->y;
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$this->m = $date->m;
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$this->d = $date->d;
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$this->minJD = $date->minJD;
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$this->maxJD = $date->maxJD;
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return;
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}
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// ...else construct an inequivalent xxxxDate object
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if ($date->y == 0) {
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// Incomplete date - convert on basis of anniversary in current year
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$today = $date->calendar->jdToYmd(unixtojd());
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$jd = $date->calendar->ymdToJd($today[0], $date->m, $date->d == 0 ? $today[2] : $date->d);
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} else {
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// Complete date
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$jd = (int) (($date->maxJD + $date->minJD) / 2);
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}
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list($this->y, $this->m, $this->d) = $this->calendar->jdToYmd($jd);
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// New date has same precision as original date
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if ($date->y == 0) {
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$this->y = 0;
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}
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if ($date->m == 0) {
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$this->m = 0;
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}
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if ($date->d == 0) {
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$this->d = 0;
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}
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$this->setJdFromYmd();
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}
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/**
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* Is the current year a leap year?
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*
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* @return bool
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*/
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public function isLeapYear() {
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return $this->calendar->isLeapYear($this->y);
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}
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/**
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* Set the object’s Julian day number from a potentially incomplete year/month/day
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*/
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public function setJdFromYmd() {
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if ($this->y == 0) {
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$this->minJD = 0;
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$this->maxJD = 0;
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} elseif ($this->m == 0) {
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$this->minJD = $this->calendar->ymdToJd($this->y, 1, 1);
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$this->maxJD = $this->calendar->ymdToJd($this->nextYear($this->y), 1, 1) - 1;
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} elseif ($this->d == 0) {
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list($ny, $nm) = $this->nextMonth();
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$this->minJD = $this->calendar->ymdToJd($this->y, $this->m, 1);
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$this->maxJD = $this->calendar->ymdToJd($ny, $nm, 1) - 1;
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} else {
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$this->minJD = $this->calendar->ymdToJd($this->y, $this->m, $this->d);
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$this->maxJD = $this->minJD;
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}
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}
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/**
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* Full month name in nominative case.
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*
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* We put these in the base class, to save duplicating it in the Julian and Gregorian calendars.
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*
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* @param int $month_number
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* @param bool $leap_year Some calendars use leap months
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*
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* @return string
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*/
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public static function monthNameNominativeCase($month_number, $leap_year) {
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static $translated_month_names;
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if ($translated_month_names === null) {
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$translated_month_names = array(
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0 => '',
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1 => I18N::translateContext('NOMINATIVE', 'January'),
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2 => I18N::translateContext('NOMINATIVE', 'February'),
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3 => I18N::translateContext('NOMINATIVE', 'March'),
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4 => I18N::translateContext('NOMINATIVE', 'April'),
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5 => I18N::translateContext('NOMINATIVE', 'May'),
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6 => I18N::translateContext('NOMINATIVE', 'June'),
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7 => I18N::translateContext('NOMINATIVE', 'July'),
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8 => I18N::translateContext('NOMINATIVE', 'August'),
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9 => I18N::translateContext('NOMINATIVE', 'September'),
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10 => I18N::translateContext('NOMINATIVE', 'October'),
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11 => I18N::translateContext('NOMINATIVE', 'November'),
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12 => I18N::translateContext('NOMINATIVE', 'December'),
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);
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}
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return $translated_month_names[$month_number];
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}
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/**
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* Full month name in genitive case.
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*
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* We put these in the base class, to save duplicating it in the Julian and Gregorian calendars.
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*
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* @param int $month_number
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* @param bool $leap_year Some calendars use leap months
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*
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* @return string
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*/
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protected function monthNameGenitiveCase($month_number, $leap_year) {
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static $translated_month_names;
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if ($translated_month_names === null) {
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$translated_month_names = array(
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0 => '',
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1 => I18N::translateContext('GENITIVE', 'January'),
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2 => I18N::translateContext('GENITIVE', 'February'),
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3 => I18N::translateContext('GENITIVE', 'March'),
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4 => I18N::translateContext('GENITIVE', 'April'),
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5 => I18N::translateContext('GENITIVE', 'May'),
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6 => I18N::translateContext('GENITIVE', 'June'),
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7 => I18N::translateContext('GENITIVE', 'July'),
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8 => I18N::translateContext('GENITIVE', 'August'),
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9 => I18N::translateContext('GENITIVE', 'September'),
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10 => I18N::translateContext('GENITIVE', 'October'),
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11 => I18N::translateContext('GENITIVE', 'November'),
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12 => I18N::translateContext('GENITIVE', 'December'),
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);
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}
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return $translated_month_names[$month_number];
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}
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/**
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* Full month name in locative case.
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*
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* We put these in the base class, to save duplicating it in the Julian and Gregorian calendars.
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*
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* @param int $month_number
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* @param bool $leap_year Some calendars use leap months
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*
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* @return string
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*/
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protected function monthNameLocativeCase($month_number, $leap_year) {
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static $translated_month_names;
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if ($translated_month_names === null) {
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$translated_month_names = array(
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0 => '',
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1 => I18N::translateContext('LOCATIVE', 'January'),
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2 => I18N::translateContext('LOCATIVE', 'February'),
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3 => I18N::translateContext('LOCATIVE', 'March'),
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4 => I18N::translateContext('LOCATIVE', 'April'),
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5 => I18N::translateContext('LOCATIVE', 'May'),
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6 => I18N::translateContext('LOCATIVE', 'June'),
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7 => I18N::translateContext('LOCATIVE', 'July'),
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8 => I18N::translateContext('LOCATIVE', 'August'),
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9 => I18N::translateContext('LOCATIVE', 'September'),
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10 => I18N::translateContext('LOCATIVE', 'October'),
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11 => I18N::translateContext('LOCATIVE', 'November'),
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12 => I18N::translateContext('LOCATIVE', 'December'),
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);
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}
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return $translated_month_names[$month_number];
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}
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/**
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* Full month name in instrumental case.
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*
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* We put these in the base class, to save duplicating it in the Julian and Gregorian calendars.
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*
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* @param int $month_number
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* @param bool $leap_year Some calendars use leap months
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*
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* @return string
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*/
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protected function monthNameInstrumentalCase($month_number, $leap_year) {
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static $translated_month_names;
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if ($translated_month_names === null) {
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$translated_month_names = array(
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0 => '',
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1 => I18N::translateContext('INSTRUMENTAL', 'January'),
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2 => I18N::translateContext('INSTRUMENTAL', 'February'),
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3 => I18N::translateContext('INSTRUMENTAL', 'March'),
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4 => I18N::translateContext('INSTRUMENTAL', 'April'),
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5 => I18N::translateContext('INSTRUMENTAL', 'May'),
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6 => I18N::translateContext('INSTRUMENTAL', 'June'),
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7 => I18N::translateContext('INSTRUMENTAL', 'July'),
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8 => I18N::translateContext('INSTRUMENTAL', 'August'),
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9 => I18N::translateContext('INSTRUMENTAL', 'September'),
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10 => I18N::translateContext('INSTRUMENTAL', 'October'),
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11 => I18N::translateContext('INSTRUMENTAL', 'November'),
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12 => I18N::translateContext('INSTRUMENTAL', 'December'),
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);
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}
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return $translated_month_names[$month_number];
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}
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/**
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* Abbreviated month name
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*
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* @param int $month_number
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* @param bool $leap_year Some calendars use leap months
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*
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* @return string
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*/
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protected function monthNameAbbreviated($month_number, $leap_year) {
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static $translated_month_names;
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if ($translated_month_names === null) {
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$translated_month_names = array(
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0 => '',
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1 => I18N::translateContext('Abbreviation for January', 'Jan'),
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2 => I18N::translateContext('Abbreviation for February', 'Feb'),
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3 => I18N::translateContext('Abbreviation for March', 'Mar'),
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4 => I18N::translateContext('Abbreviation for April', 'Apr'),
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5 => I18N::translateContext('Abbreviation for May', 'May'),
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6 => I18N::translateContext('Abbreviation for June', 'Jun'),
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7 => I18N::translateContext('Abbreviation for July', 'Jul'),
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8 => I18N::translateContext('Abbreviation for August', 'Aug'),
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9 => I18N::translateContext('Abbreviation for September', 'Sep'),
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10 => I18N::translateContext('Abbreviation for October', 'Oct'),
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11 => I18N::translateContext('Abbreviation for November', 'Nov'),
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12 => I18N::translateContext('Abbreviation for December', 'Dec'),
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);
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}
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return $translated_month_names[$month_number];
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}
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/**
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* Full day of th eweek
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*
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* @param int $day_number
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*
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* @return string
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*/
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public function dayNames($day_number) {
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static $translated_day_names;
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if ($translated_day_names === null) {
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$translated_day_names = array(
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0 => I18N::translate('Monday'),
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1 => I18N::translate('Tuesday'),
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2 => I18N::translate('Wednesday'),
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3 => I18N::translate('Thursday'),
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4 => I18N::translate('Friday'),
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5 => I18N::translate('Saturday'),
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6 => I18N::translate('Sunday'),
|
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);
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}
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return $translated_day_names[$day_number];
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}
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/**
|
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* Abbreviated day of the week
|
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*
|
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* @param int $day_number
|
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*
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* @return string
|
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*/
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protected function dayNamesAbbreviated($day_number) {
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static $translated_day_names;
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||
|
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if ($translated_day_names === null) {
|
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$translated_day_names = array(
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0 => /* I18N: abbreviation for Monday */ I18N::translate('Mon'),
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1 => /* I18N: abbreviation for Tuesday */ I18N::translate('Tue'),
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2 => /* I18N: abbreviation for Wednesday */ I18N::translate('Wed'),
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3 => /* I18N: abbreviation for Thursday */ I18N::translate('Thu'),
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||
4 => /* I18N: abbreviation for Friday */ I18N::translate('Fri'),
|
||
5 => /* I18N: abbreviation for Saturday */ I18N::translate('Sat'),
|
||
6 => /* I18N: abbreviation for Sunday */ I18N::translate('Sun'),
|
||
);
|
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}
|
||
|
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return $translated_day_names[$day_number];
|
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}
|
||
|
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/**
|
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* Most years are 1 more than the previous, but not always (e.g. 1BC->1AD)
|
||
*
|
||
* @param int $year
|
||
*
|
||
* @return int
|
||
*/
|
||
protected function nextYear($year) {
|
||
return $year + 1;
|
||
}
|
||
|
||
/**
|
||
* Calendars that use suffixes, etc. (e.g. “B.C.”) or OS/NS notation should redefine this.
|
||
*
|
||
* @param string $year
|
||
*
|
||
* @return int
|
||
*/
|
||
protected function extractYear($year) {
|
||
return (int) $year;
|
||
}
|
||
|
||
/**
|
||
* Compare two dates, for sorting
|
||
*
|
||
* @param CalendarDate $d1
|
||
* @param CalendarDate $d2
|
||
*
|
||
* @return int
|
||
*/
|
||
public static function compare(CalendarDate $d1, CalendarDate $d2) {
|
||
if ($d1->maxJD < $d2->minJD) {
|
||
return -1;
|
||
} elseif ($d2->minJD > $d1->maxJD) {
|
||
return 1;
|
||
} else {
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* How long between an event and a given julian day
|
||
* Return result as either a number of years or
|
||
* a gedcom-style age string.
|
||
*
|
||
* @todo JewishDate needs to redefine this to cope with leap months
|
||
*
|
||
* @param bool $full true=gedcom style, false=just years
|
||
* @param int $jd date for calculation
|
||
* @param bool $warn_on_negative show a warning triangle for negative ages
|
||
*
|
||
* @return string
|
||
*/
|
||
public function getAge($full, $jd, $warn_on_negative = true) {
|
||
if ($this->y == 0 || $jd == 0) {
|
||
return $full ? '' : '0';
|
||
}
|
||
if ($this->minJD < $jd && $this->maxJD > $jd) {
|
||
return $full ? '' : '0';
|
||
}
|
||
if ($this->minJD == $jd) {
|
||
return $full ? '' : '0';
|
||
}
|
||
if ($warn_on_negative && $jd < $this->minJD) {
|
||
return '<i class="icon-warning"></i>';
|
||
}
|
||
list($y, $m, $d) = $this->calendar->jdToYmd($jd);
|
||
$dy = $y - $this->y;
|
||
$dm = $m - max($this->m, 1);
|
||
$dd = $d - max($this->d, 1);
|
||
if ($dd < 0) {
|
||
$dm--;
|
||
}
|
||
if ($dm < 0) {
|
||
$dm += $this->calendar->monthsInYear();
|
||
$dy--;
|
||
}
|
||
// Not a full age? Then just the years
|
||
if (!$full) {
|
||
return $dy;
|
||
}
|
||
// Age in years?
|
||
if ($dy > 1) {
|
||
return $dy . 'y';
|
||
}
|
||
$dm += $dy * $this->calendar->monthsInYear();
|
||
// Age in months?
|
||
if ($dm > 1) {
|
||
return $dm . 'm';
|
||
}
|
||
|
||
// Age in days?
|
||
return ($jd - $this->minJD) . 'd';
|
||
}
|
||
|
||
/**
|
||
* Convert a date from one calendar to another.
|
||
*
|
||
* @param string $calendar
|
||
*
|
||
* @return CalendarDate
|
||
*/
|
||
public function convertToCalendar($calendar) {
|
||
switch ($calendar) {
|
||
case 'gregorian':
|
||
return new GregorianDate($this);
|
||
case 'julian':
|
||
return new JulianDate($this);
|
||
case 'jewish':
|
||
return new JewishDate($this);
|
||
case 'french':
|
||
return new FrenchDate($this);
|
||
case 'hijri':
|
||
return new HijriDate($this);
|
||
case 'jalali':
|
||
return new JalaliDate($this);
|
||
default:
|
||
return $this;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Is this date within the valid range of the calendar
|
||
*
|
||
* @return bool
|
||
*/
|
||
public function inValidRange() {
|
||
return $this->minJD >= $this->calendar->jdStart() && $this->maxJD <= $this->calendar->jdEnd();
|
||
}
|
||
|
||
/**
|
||
* How many months in a year
|
||
*
|
||
* @return int
|
||
*/
|
||
public function monthsInYear() {
|
||
return $this->calendar->monthsInYear();
|
||
}
|
||
|
||
/**
|
||
* How many days in the current month
|
||
*
|
||
* @return int
|
||
*/
|
||
public function daysInMonth() {
|
||
try {
|
||
return $this->calendar->daysInMonth($this->y, $this->m);
|
||
} catch (\InvalidArgumentException $ex) {
|
||
// calendar.php calls this with "DD MMM" dates, for which we cannot calculate
|
||
// the length of a month. Should we validate this before calling this function?
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* How many days in the current week
|
||
*
|
||
* @return int
|
||
*/
|
||
public function daysInWeek() {
|
||
return $this->calendar->daysInWeek();
|
||
}
|
||
|
||
/**
|
||
* Format a date, using similar codes to the PHP date() function.
|
||
*
|
||
* @param string $format See http://php.net/date
|
||
* @param string $qualifier GEDCOM qualifier, so we can choose the right case for the month name.
|
||
*
|
||
* @return string
|
||
*/
|
||
public function format($format, $qualifier = '') {
|
||
// Don’t show exact details for inexact dates
|
||
if (!$this->d) {
|
||
// The comma is for US "M D, Y" dates
|
||
$format = preg_replace('/%[djlDNSwz][,]?/', '', $format);
|
||
}
|
||
if (!$this->m) {
|
||
$format = str_replace(array('%F', '%m', '%M', '%n', '%t'), '', $format);
|
||
}
|
||
if (!$this->y) {
|
||
$format = str_replace(array('%t', '%L', '%G', '%y', '%Y'), '', $format);
|
||
}
|
||
// If we’ve trimmed the format, also trim the punctuation
|
||
if (!$this->d || !$this->m || !$this->y) {
|
||
$format = trim($format, ',. ;/-');
|
||
}
|
||
if ($this->d && preg_match('/%[djlDNSwz]/', $format)) {
|
||
// If we have a day-number *and* we are being asked to display it, then genitive
|
||
$case = 'GENITIVE';
|
||
} else {
|
||
switch ($qualifier) {
|
||
case 'TO':
|
||
case 'ABT':
|
||
case 'FROM':
|
||
$case = 'GENITIVE';
|
||
break;
|
||
case 'AFT':
|
||
$case = 'LOCATIVE';
|
||
break;
|
||
case 'BEF':
|
||
case 'BET':
|
||
case 'AND':
|
||
$case = 'INSTRUMENTAL';
|
||
break;
|
||
case '':
|
||
case 'INT':
|
||
case 'EST':
|
||
case 'CAL':
|
||
default: // There shouldn't be any other options...
|
||
$case = 'NOMINATIVE';
|
||
break;
|
||
}
|
||
}
|
||
// Build up the formatted date, character at a time
|
||
preg_match_all('/%[^%]/', $format, $matches);
|
||
foreach ($matches[0] as $match) {
|
||
switch ($match) {
|
||
case '%d':
|
||
$format = str_replace($match, $this->formatDayZeros(), $format);
|
||
break;
|
||
case '%j':
|
||
$format = str_replace($match, $this->formatDay(), $format);
|
||
break;
|
||
case '%l':
|
||
$format = str_replace($match, $this->formatLongWeekday(), $format);
|
||
break;
|
||
case '%D':
|
||
$format = str_replace($match, $this->formatShortWeekday(), $format);
|
||
break;
|
||
case '%N':
|
||
$format = str_replace($match, $this->formatIsoWeekday(), $format);
|
||
break;
|
||
case '%w':
|
||
$format = str_replace($match, $this->formatNumericWeekday(), $format);
|
||
break;
|
||
case '%z':
|
||
$format = str_replace($match, $this->formatDayOfYear(), $format);
|
||
break;
|
||
case '%F':
|
||
$format = str_replace($match, $this->formatLongMonth($case), $format);
|
||
break;
|
||
case '%m':
|
||
$format = str_replace($match, $this->formatMonthZeros(), $format);
|
||
break;
|
||
case '%M':
|
||
$format = str_replace($match, $this->formatShortMonth(), $format);
|
||
break;
|
||
case '%n':
|
||
$format = str_replace($match, $this->formatMonth(), $format);
|
||
break;
|
||
case '%t':
|
||
$format = str_replace($match, $this->daysInMonth(), $format);
|
||
break;
|
||
case '%L':
|
||
$format = str_replace($match, (int) $this->isLeapYear(), $format);
|
||
break;
|
||
case '%Y':
|
||
$format = str_replace($match, $this->formatLongYear(), $format);
|
||
break;
|
||
case '%y':
|
||
$format = str_replace($match, $this->formatShortYear(), $format);
|
||
break;
|
||
// These 4 extensions are useful for re-formatting gedcom dates.
|
||
case '%@':
|
||
$format = str_replace($match, $this->calendar->gedcomCalendarEscape(), $format);
|
||
break;
|
||
case '%A':
|
||
$format = str_replace($match, $this->formatGedcomDay(), $format);
|
||
break;
|
||
case '%O':
|
||
$format = str_replace($match, $this->formatGedcomMonth(), $format);
|
||
break;
|
||
case '%E':
|
||
$format = str_replace($match, $this->formatGedcomYear(), $format);
|
||
break;
|
||
}
|
||
}
|
||
|
||
return $format;
|
||
}
|
||
|
||
/**
|
||
* Generate the %d format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatDayZeros() {
|
||
if ($this->d > 9) {
|
||
return I18N::digits($this->d);
|
||
} else {
|
||
return I18N::digits('0' . $this->d);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Generate the %j format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatDay() {
|
||
return I18N::digits($this->d);
|
||
}
|
||
|
||
/**
|
||
* Generate the %l format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatLongWeekday() {
|
||
return $this->dayNames($this->minJD % $this->calendar->daysInWeek());
|
||
}
|
||
|
||
/**
|
||
* Generate the %D format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatShortWeekday() {
|
||
return $this->dayNamesAbbreviated($this->minJD % $this->calendar->daysInWeek());
|
||
}
|
||
|
||
/**
|
||
* Generate the %N format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatIsoWeekday() {
|
||
return I18N::digits($this->minJD % 7 + 1);
|
||
}
|
||
|
||
/**
|
||
* Generate the %w format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatNumericWeekday() {
|
||
return I18N::digits(($this->minJD + 1) % $this->calendar->daysInWeek());
|
||
}
|
||
|
||
/**
|
||
* Generate the %z format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatDayOfYear() {
|
||
return I18N::digits($this->minJD - $this->calendar->ymdToJd($this->y, 1, 1));
|
||
}
|
||
|
||
/**
|
||
* Generate the %n format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatMonth() {
|
||
return I18N::digits($this->m);
|
||
}
|
||
|
||
/**
|
||
* Generate the %m format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatMonthZeros() {
|
||
if ($this->m > 9) {
|
||
return I18N::digits($this->m);
|
||
} else {
|
||
return I18N::digits('0' . $this->m);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Generate the %F format for a date.
|
||
*
|
||
* @param string $case Which grammatical case shall we use
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatLongMonth($case = 'NOMINATIVE') {
|
||
switch ($case) {
|
||
case 'GENITIVE':
|
||
return $this->monthNameGenitiveCase($this->m, $this->isLeapYear());
|
||
case 'NOMINATIVE':
|
||
return $this->monthNameNominativeCase($this->m, $this->isLeapYear());
|
||
case 'LOCATIVE':
|
||
return $this->monthNameLocativeCase($this->m, $this->isLeapYear());
|
||
case 'INSTRUMENTAL':
|
||
return $this->monthNameInstrumentalCase($this->m, $this->isLeapYear());
|
||
default:
|
||
throw new \InvalidArgumentException($case);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Generate the %M format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatShortMonth() {
|
||
return $this->monthNameAbbreviated($this->m, $this->isLeapYear());
|
||
}
|
||
|
||
/**
|
||
* Generate the %y format for a date.
|
||
*
|
||
* NOTE Short year is NOT a 2-digit year. It is for calendars such as hebrew
|
||
* which have a 3-digit form of 4-digit years.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatShortYear() {
|
||
return $this->formatLongYear();
|
||
}
|
||
|
||
/**
|
||
* Generate the %A format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatGedcomDay() {
|
||
if ($this->d == 0) {
|
||
return '';
|
||
} else {
|
||
return sprintf('%02d', $this->d);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Generate the %O format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatGedcomMonth() {
|
||
// Our simple lookup table doesn't work correctly for Adar on leap years
|
||
if ($this->m == 7 && $this->calendar instanceof JewishCalendar && !$this->calendar->isLeapYear($this->y)) {
|
||
return 'ADR';
|
||
} else {
|
||
return array_search($this->m, static::$MONTH_ABBREV);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Generate the %E format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatGedcomYear() {
|
||
if ($this->y == 0) {
|
||
return '';
|
||
} else {
|
||
return sprintf('%04d', $this->y);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Generate the %Y format for a date.
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function formatLongYear() {
|
||
return I18N::digits($this->y);
|
||
}
|
||
|
||
/**
|
||
* Which months follows this one? Calendars with leap-months should provide their own implementation.
|
||
*
|
||
* @return int[]
|
||
*/
|
||
protected function nextMonth() {
|
||
return array($this->m === $this->calendar->monthsInYear() ? $this->nextYear($this->y) : $this->y, ($this->m % $this->calendar->monthsInYear()) + 1);
|
||
}
|
||
|
||
/**
|
||
* Convert a decimal number to roman numerals
|
||
*
|
||
* @param int $number
|
||
*
|
||
* @return string
|
||
*/
|
||
protected function numberToRomanNumerals($number) {
|
||
if ($number < 1) {
|
||
// Cannot convert zero/negative numbers
|
||
return (string) $number;
|
||
}
|
||
$roman = '';
|
||
foreach (self::$roman_numerals as $key => $value) {
|
||
while ($number >= $key) {
|
||
$roman .= $value;
|
||
$number -= $key;
|
||
}
|
||
}
|
||
|
||
return $roman;
|
||
}
|
||
|
||
/**
|
||
* Convert a roman numeral to decimal
|
||
*
|
||
* @param string $roman
|
||
*
|
||
* @return int
|
||
*/
|
||
protected function romanNumeralsToNumber($roman) {
|
||
$num = 0;
|
||
foreach (self::$roman_numerals as $key => $value) {
|
||
if (strpos($roman, $value) === 0) {
|
||
$num += $key;
|
||
$roman = substr($roman, strlen($value));
|
||
}
|
||
}
|
||
|
||
return $num;
|
||
}
|
||
|
||
/**
|
||
* Get today’s date in the current calendar.
|
||
*
|
||
* @return int[]
|
||
*/
|
||
public function todayYmd() {
|
||
return $this->calendar->jdToYmd(unixtojd());
|
||
}
|
||
|
||
/**
|
||
* Convert to today’s date.
|
||
*
|
||
* @return CalendarDate
|
||
*/
|
||
public function today() {
|
||
$tmp = clone $this;
|
||
$ymd = $tmp->todayYmd();
|
||
$tmp->y = $ymd[0];
|
||
$tmp->m = $ymd[1];
|
||
$tmp->d = $ymd[2];
|
||
$tmp->setJdFromYmd();
|
||
|
||
return $tmp;
|
||
}
|
||
|
||
/**
|
||
* Create a URL that links this date to the WT calendar
|
||
*
|
||
* @param string $date_format
|
||
*
|
||
* @return string
|
||
*/
|
||
public function calendarUrl($date_format) {
|
||
if (strpbrk($date_format, 'dDj') && $this->d) {
|
||
// If the format includes a day, and the date also includes a day, then use the day view
|
||
$view = 'day';
|
||
} elseif (strpbrk($date_format, 'FMmn') && $this->m) {
|
||
// If the format includes a month, and the date also includes a month, then use the month view
|
||
$view = 'month';
|
||
} else {
|
||
// Use the year view
|
||
$view = 'year';
|
||
}
|
||
|
||
return
|
||
'calendar.php?cal=' . rawurlencode($this->calendar->gedcomCalendarEscape()) .
|
||
'&year=' . $this->formatGedcomYear() .
|
||
'&month=' . $this->formatGedcomMonth() .
|
||
'&day=' . $this->formatGedcomDay() .
|
||
'&view=' . $view;
|
||
}
|
||
}
|