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<?php
declare(strict_types=1);
namespace Stadly\PasswordPolice\CodeMap;
use Stadly\PasswordPolice\CharTree;
use Stadly\PasswordPolice\CodeMap;
use Stadly\PasswordPolice\Formatter\LengthFilter;
use Stadly\PasswordPolice\Formatter\Truncator;
final class MixedCaseMap implements CodeMap
{
/**
* @var Truncator Formatter for extracting the first character.
*/
private $charExtractor;
public function __construct()
$this->charExtractor = new Truncator(1);
$this->charExtractor->setNext(new LengthFilter(1, 1));
}
* {@inheritDoc}
public function getMap(CharTree $charTree): array
$codeMap = [];
foreach ($this->charExtractor->apply($charTree) as $char) {
$lowerCase = mb_strtolower($char);
$upperCase = mb_strtoupper($char);
$codeMap[$char] = [$lowerCase];
if ($lowerCase !== $upperCase) {
$codeMap[$char][] = $upperCase;
return $codeMap;
public function getLengths(): array
return [1];
public function code(string $string): array
$lowerCase = mb_strtolower($string);
$upperCase = mb_strtoupper($string);
$codeMap = [$lowerCase];
$codeMap[] = $upperCase;
Stadly /
PasswordPolice
