xref: /webtrees/app/Date/RomanDate.php (revision 89f7189b61a494347591c99bdb92afb7d8b66e1b)

<?php

/**
 * webtrees: online genealogy
 * Copyright (C) 2021 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 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 <https://www.gnu.org/licenses/>.
 */

declare(strict_types=1);

namespace Fisharebest\Webtrees\Date;

/**
 * Definitions for Roman dates.
 *
 * The 5.5.1 gedcom spec mentions this calendar, but gives no details of
 * how it is to be represented.... This class is just a place holder so that
 * webtrees won’t complain if it receives one.
 */
class RomanDate extends JulianDate
{
    // GEDCOM calendar escape
    public const ESCAPE = '@#DROMAN@';

    /**
     * Generate the %E format for a date.
     *
     * @return string
     */
    protected function formatGedcomYear(): string
    {
        return sprintf('%04dAUC', $this->year);
    }

    /**
     * Generate the %Y format for a date.
     *
     * @return string
     */
    protected function formatLongYear(): string
    {
        return $this->year . 'AUC';
    }
}