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<?php
namespace Laminas\I18n\Filter;
use Laminas\Stdlib\StringUtils;
use Locale;
use Traversable;
use function in_array;
use function is_array;
use function is_scalar;
use function preg_replace;
/**
* @psalm-type Options = array{
* locale: string|null,
* allow_white_space: bool,
* ...
* }
* @extends AbstractLocale<Options>
*/
class Alnum extends AbstractLocale
{
/** @var Options */
protected $options = [
'locale' => null,
'allow_white_space' => false,
];
/**
* Sets default option values for this instance
*
* @param array|Traversable|bool|null $allowWhiteSpaceOrOptions
* @param string|null $locale
*/
public function __construct($allowWhiteSpaceOrOptions = null, $locale = null)
{
parent::__construct();
if ($allowWhiteSpaceOrOptions !== null) {
if (static::isOptions($allowWhiteSpaceOrOptions)) {
$this->setOptions($allowWhiteSpaceOrOptions);
} else {
$this->setAllowWhiteSpace($allowWhiteSpaceOrOptions);
$this->setLocale($locale);
}
}
}
/**
* Sets the allowWhiteSpace option
*
* @param bool $flag
* @return $this
*/
public function setAllowWhiteSpace($flag = true)
{
$this->options['allow_white_space'] = (bool) $flag;
return $this;
}
/**
* Whether white space is allowed
*
* @return bool
*/
public function getAllowWhiteSpace()
{
return $this->options['allow_white_space'];
}
/**
* Defined by Laminas\Filter\FilterInterface
*
* Returns $value as string with all non-alphanumeric characters removed
*
* @param mixed $value
* @return string|list<string>|mixed
*/
public function filter($value)
{
if (! is_scalar($value) && ! is_array($value)) {
return $value;
}
$whiteSpace = $this->options['allow_white_space'] ? '\s' : '';
$language = Locale::getPrimaryLanguage($this->getLocale());
if (! StringUtils::hasPcreUnicodeSupport()) {
// POSIX named classes are not supported, use alternative a-zA-Z0-9 match
$pattern = '/[^a-zA-Z0-9' . $whiteSpace . ']/';
} elseif (in_array($language, ['ja', 'ko', 'zh'], true)) {
// Use english alphabet
$pattern = '/[^a-zA-Z0-9' . $whiteSpace . ']/u';
} else {
// Use native language alphabet
$pattern = '/[^\p{L}\p{N}' . $whiteSpace . ']/u';
}
$value = is_scalar($value) ? (string) $value : $value;
return preg_replace($pattern, '', $value);
}
}