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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\Elements;
use Fisharebest\Webtrees\Date;
use Fisharebest\Webtrees\Html;
use Fisharebest\Webtrees\I18N;
use Fisharebest\Webtrees\Tree;
use function e;
use function preg_replace_callback;
use function view;
/**
* DATE_VALUE := {Size=1:35}
* [ <DATE> | <DATE_PERIOD> | <DATE_RANGE>| <DATE_APPROXIMATED> | INT <DATE> (<DATE_PHRASE>) | (<DATE_PHRASE>) ]
* The DATE_VALUE represents the date of an activity, attribute, or event where:
* INT = Interpreted from knowledge about the associated date phrase included in parentheses.
* An acceptable alternative to the date phrase choice is to use one of the other choices such as
* <DATE_APPROXIMATED> choice as the DATE line value and then include the date phrase value as a
* NOTE value subordinate to the DATE line tag.
* The date value can take on the date form of just a date, an approximated date, between a date
* and another date, and from one date to another date. The preferred form of showing date
* imprecision, is to show, for example, MAY 1890 rather than ABT 12 MAY 1890. This is because
* limits have not been assigned to the precision of the prefixes such as ABT or EST.
*/
class DateValue extends AbstractElement
{
/**
* An edit control for this data.
*
* @param string $id
* @param string $name
* @param string $value
* @param Tree $tree
*
* @return string
*/
public function edit(string $id, string $name, string $value, Tree $tree): string
{
// Need to know if the user prefers DMY/MDY/YMD so we can validate dates properly.
$dmy = I18N::language()->dateOrder();
$attributes = [
'class' => 'form-control',
'dir' => 'ltr',
'type' => 'text',
'id' => $id,
'name' => $name,
'value' => $value,
'onchange' => 'webtrees.reformatDate(this, \'' . e($dmy) . '\')',
'maxlength' => static::MAXIMUM_LENGTH,
'pattern' => static::PATTERN,
];
return
'<div class="input-group">' .
'<input ' . Html::attributes($attributes) . ' />' .
view('edit/input-addon-calendar', ['id' => $id]) .
view('edit/input-addon-help', ['topic' => 'DATE']) .
'</div>' .
'<div id="caldiv' . $id . '" style="position:absolute;visibility:hidden;background-color:white;z-index:1000"></div>' .
'<div class="form-text">' . (new Date($value))->display() . '</div>';
}
/**
* Escape @ signs in a GEDCOM export.
*
* @param string $value
*
* @return string
*/
public function escape(string $value): string
{
// Only escape @ signs in an INT phrase
return preg_replace_callback('/\(.*@.*\)/', static fn (array $matches): string => strtr($matches[0], ['@' => '@@']), $value);
}
/**
* Display the value of this type of element.
*
* @param string $value
* @param Tree $tree
*
* @return string
*/
public function value(string $value, Tree $tree): string
{
$canonical = $this->canonical($value);
$date = new Date($canonical);
return $date->display();
}
}
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