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<?php
/**
* webtrees: online genealogy
* Copyright (C) 2026 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\ExtCalendar\CalendarInterface;
use Fisharebest\ExtCalendar\GregorianCalendar;
use Fisharebest\Localization\Locale\LocaleEnUs;
use Fisharebest\Localization\Locale\LocaleInterface;
use Fisharebest\Webtrees\I18N;
use Fisharebest\Webtrees\Relationship;
use Normalizer;
use function mb_substr;
use function normalizer_normalize;
/**
* Default implementation of ModuleLanguageInterface.
*/
trait ModuleLanguageTrait
{
/**
* @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',
];
}
public function calendar(): CalendarInterface
{
return new GregorianCalendar();
}
public function dateOrder(): string
{
return 'DMY';
}
public function initialLetter(string $string): string
{
return mb_substr($string, 0, 1);
}
/**
* Ignore diacritics on letters - unless the language considers them a different letter.
*/
public function normalize(string $text): string
{
// Decompose any combined characters.
$decomposed = normalizer_normalize($text, Normalizer::FORM_KD);
if ($decomposed === false) {
// Invalid UTF8?
return $text;
}
// Keep any diacritic marks that are significant to this language.
$text = strtr($decomposed, $this->normalizeExceptions());
// Remove the others.
return preg_replace('/\p{M}/u', '', $text);
}
/**
* Letters with diacritics that are considered distinct letters in this language.
*
* @return array<string,string>
*/
protected function normalizeExceptions(): array
{
return [];
}
public function title(): string
{
return $this->locale()->endonym();
}
public function description(): string
{
return I18N::translate('Language') . ' — ' . $this->title() . ' — ' . $this->locale()->languageTag();
}
public function locale(): LocaleInterface
{
return new LocaleEnUs();
}
/**
* @return array<Relationship>
*/
public function relationships(): array
{
return [];
}
}
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