xref: /webtrees/app/Date/RomanDate.php (revision 83615acfc72bfb50678c6481f2a00bab04041a87)
1<?php
2
3/**
4 * webtrees: online genealogy
5 * Copyright (C) 2019 webtrees development team
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17declare(strict_types=1);
18
19namespace Fisharebest\Webtrees\Date;
20
21/**
22 * Definitions for Roman dtes.
23 *
24 * The 5.5.1 gedcom spec mentions this calendar, but gives no details of
25 * how it is to be represented.... This class is just a place holder so that
26 * webtrees won’t compain if it receives one.
27 */
28class RomanDate extends JulianDate
29{
30    // GEDCOM calendar escape
31    public const ESCAPE = '@#DROMAN@';
32
33    /**
34     * Generate the %E format for a date.
35     *
36     * @return string
37     */
38    protected function formatGedcomYear(): string
39    {
40        return sprintf('%04dAUC', $this->year);
41    }
42
43    /**
44     * Generate the %Y format for a date.
45     *
46     * @return string
47     */
48    protected function formatLongYear(): string
49    {
50        return $this->year . 'AUC';
51    }
52}
53