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<?php
declare(strict_types=1);
/*
* (c) Rob Bast <rob.bast@gmail.com>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace Automattic\WooCommerce\Vendor\League\ISO3166;
use Automattic\WooCommerce\Vendor\League\ISO3166\Exception\DomainException;
final class Guards
{
/**
* Assert that input is not an empty string.
*
* @throws \Automattic\WooCommerce\Vendor\League\ISO3166\Exception\DomainException if input is an empty string
*/
public static function guardAgainstInvalidName(string $name): void
{
if ('' === trim($name)) {
throw new DomainException('Expected string, got empty string');
}
}
/**
* Assert that input looks like an alpha2 key.
*
* @throws \Automattic\WooCommerce\Vendor\League\ISO3166\Exception\DomainException if input does not look like an alpha2 key
*/
public static function guardAgainstInvalidAlpha2(string $alpha2): void
{
if (1 !== preg_match('/^[a-zA-Z]{2}$/', $alpha2)) {
throw new DomainException(sprintf('Not a valid alpha2 key: %s', $alpha2));
}
}
/**
* Assert that input looks like an alpha3 key.
*
* @throws \Automattic\WooCommerce\Vendor\League\ISO3166\Exception\DomainException if input does not look like an alpha3 key
*/
public static function guardAgainstInvalidAlpha3(string $alpha3): void
{
if (1 !== preg_match('/^[a-zA-Z]{3}$/', $alpha3)) {
throw new DomainException(sprintf('Not a valid alpha3 key: %s', $alpha3));
}
}
/**
* Assert that input looks like a numeric key.
*
* @throws \Automattic\WooCommerce\Vendor\League\ISO3166\Exception\DomainException if input does not look like a numeric key
*/
public static function guardAgainstInvalidNumeric(string $numeric): void
{
if (1 !== preg_match('/^\d{3}$/', $numeric)) {
throw new DomainException(sprintf('Not a valid numeric key: %s', $numeric));
}
}
}