xref: /webtrees/app/Date/RomanDate.php (revision 94026f200c17dcfccf296678dc90ea88b14f6246)
1<?php
2/**
3 * webtrees: online genealogy
4 * Copyright (C) 2019 webtrees development team
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16declare(strict_types=1);
17
18namespace Fisharebest\Webtrees\Date;
19
20/**
21 * Definitions for Roman dtes.
22 *
23 * The 5.5.1 gedcom spec mentions this calendar, but gives no details of
24 * how it is to be represented.... This class is just a place holder so that
25 * webtrees won’t compain if it receives one.
26 */
27class RomanDate extends JulianDate
28{
29    // GEDCOM calendar escape
30    const ESCAPE = '@#DROMAN@';
31
32    /**
33     * Generate the %E format for a date.
34     *
35     * @return string
36     */
37    protected function formatGedcomYear(): string
38    {
39        return sprintf('%04dAUC', $this->year);
40    }
41
42    /**
43     * Generate the %Y format for a date.
44     *
45     * @return string
46     */
47    protected function formatLongYear(): string
48    {
49        return $this->year . 'AUC';
50    }
51}
52