app/Module/LanguageDutch.php
<?php
/**
* webtrees: online genealogy
* Copyright (C) 2023 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\Module;
use Fisharebest\Localization\Locale\LocaleInterface;
use Fisharebest\Localization\Locale\LocaleNl;
use Fisharebest\Webtrees\Encodings\UTF8;
use function mb_substr;
use function str_starts_with;
/**
* Class LanguageDutch.
*/
class LanguageDutch extends AbstractModule implements ModuleLanguageInterface
{
use ModuleLanguageTrait;
/**
* Phone-book ordering of letters.
*
* @return array<int,string>
*/
public function alphabet(): array
{
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',
'IJ',
];
}
/**
* Some languages use digraphs and trigraphs.
*
* @param string $string
*
* @return string
*/
public function initialLetter(string $string): string
{
if (str_starts_with($string, 'IJ')) {
return 'IJ';
}
return mb_substr($string, 0, 1);
}
/**
* @return LocaleInterface
*/
public function locale(): LocaleInterface
{
return new LocaleNl();
}
/**
* Letters with diacritics that are considered distinct letters in this language.
*
* @return array<string,string>
*/
protected function normalizeExceptions(): array
{
return [
'IJ' => UTF8::LATIN_CAPITAL_LIGATURE_IJ,
'Ij' => UTF8::LATIN_CAPITAL_LIGATURE_IJ,
'ij' => UTF8::LATIN_SMALL_LIGATURE_IJ,
'iJ' => UTF8::LATIN_SMALL_LIGATURE_IJ,
];
}
}