SimpleSAML\XML\Assert\LangTrait

Complexity

Total Complexity

3

Size/Duplication

Total Lines	25
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	0

1 Method

Rating	Name	Duplication	Size	Complexity
A	validLang()	0	6	3

<?php

declare(strict_types=1);

namespace SimpleSAML\XML\Assert;

use InvalidArgumentException;

use function filter_var;
use function sprintf;

/**
 * @package simplesamlphp/xml-common
 */
trait LangTrait
{
    /** @var string */
//    private static string $lang_regex = '/^(i[-]|x[-])?([a-z]{1,8})([-][a-z]{1,8})?$/Di';
    private static string $lang_regex = '/^([a-z]{2}|[i]-[a-z]+|[x]-[a-z]{1,8})(-[a-z]{1,8})*$/Di';

    /***********************************************************************************
     *  NOTE:  Custom assertions may be added below this line.                         *
     *         They SHOULD be marked as `protected` to ensure the call is forced       *
     *          through __callStatic().                                                *
     *         Assertions marked `public` are called directly and will                 *
     *          not handle any custom exception passed to it.                          *
     ***********************************************************************************/


    /**
     * @param string $value
     * @param string $message
     */
    protected static function validLang(string $value, string $message = ''): void
    {
        if (filter_var($value, FILTER_VALIDATE_REGEXP, ['options' => ['regexp' => self::$lang_regex]]) === false) {
            throw new InvalidArgumentException(sprintf(
                $message ?: '\'%s\' is not a valid xs:language',
                $value,
            ));
        }
    }
}