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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\Factories;
use Fisharebest\Webtrees\Contracts\ElementFactoryInterface;
use Fisharebest\Webtrees\Contracts\ElementInterface;
use Fisharebest\Webtrees\Elements\UnknownElement;
use function preg_match;
/**
* Make a GEDCOM element.
*/
class ElementFactory implements ElementFactoryInterface
{
/** @var array<string,ElementInterface> */
private array $elements = [];
/**
* Create a GEDCOM element that corresponds to a GEDCOM tag.
* Finds the correct element for all valid tags.
* Finds a likely element for custom tags.
*
* @param string $tag Colon delimited hierarchy, e.g. 'INDI:BIRT:PLAC'
*
* @return ElementInterface
*/
public function make(string $tag): ElementInterface
{
return $this->elements[$tag] ?? $this->findElementByWildcard($tag) ?? new UnknownElement($tag);
}
/**
* Register GEDCOM tags.
*
* @param array<string,ElementInterface> $elements
*/
public function registerTags(array $elements): void
{
$this->elements = $elements + $this->elements;
}
/**
* Register more subtags.
*
* @param array<string,array<int,array<int,string>>> $subtags
*/
public function registerSubTags(array $subtags): void
{
foreach ($subtags as $tag => $children) {
foreach ($children as $child) {
$this->make($tag)->subtag(...$child);
}
}
}
private function findElementByWildcard(string $tag): ElementInterface|null
{
foreach ($this->elements as $tags => $element) {
if (str_contains($tags, '*')) {
$regex = '/^' . strtr($tags, ['*' => '[^:]+']) . '$/';
if (preg_match($regex, $tag)) {
return $element;
}
}
}
return null;
}
}
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