xref: /webtrees/app/Module/LanguageDanish.php (revision c01f908a0d25407124cbce5487d1a1db232e2e6f) 
1<?php
2
3/**
4 * webtrees: online genealogy
5 * Copyright (C) 2022 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 <https://www.gnu.org/licenses/>.
16 */
17
18declare(strict_types=1);
19
20namespace Fisharebest\Webtrees\Module;
21
22use Fisharebest\Localization\Locale\LocaleDa;
23use Fisharebest\Localization\Locale\LocaleInterface;
24use Illuminate\Database\Query\Builder;
25
26use function mb_substr;
27use function str_starts_with;
28
29/**
30 * Class LanguageDanish.
31 */
32class LanguageDanish extends AbstractModule implements ModuleLanguageInterface
33{
34    use ModuleLanguageTrait;
35
36    /**
37     * Phone-book ordering of letters.
38     *
39     * @return array<int,string>
40     */
41    public function alphabet(): array
42    {
43        return ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'Æ', 'Ø', 'Å'];
44    }
45
46    /**
47     * Some languages treat certain letter-combinations as equivalent.
48     *
49     * @return array<string,string>
50     */
51    public function equivalentLetters(): array
52    {
53        return ['aa' => 'å', 'aA' => 'å', 'Aa' => 'Å', 'AA' => 'Å'];
54    }
55
56    /**
57     * Some languages use digraphs and trigraphs.
58     *
59     * @param string $string
60     *
61     * @return string
62     */
63    public function initialLetter(string $string): string
64    {
65        if (str_starts_with($string, 'AA')) {
66            return 'Å';
67        }
68
69        return mb_substr($string, 0, 1);
70    }
71
72    /**
73     * @param string  $column
74     * @param string  $letter
75     * @param Builder $query
76     *
77     * @return void
78     */
79    public function initialLetterSQL(string $column, string $letter, Builder $query): void
80    {
81        $query->where($column . ' /*! COLLATE utf8_danish_ci */', 'LIKE', '\\' . $letter . '%');
82    }
83
84    /**
85     * @return LocaleInterface
86     */
87    public function locale(): LocaleInterface
88    {
89        return new LocaleDa();
90    }
91}
92