Barryvdh\Cors\Util\OriginMatcher::parseOriginPattern PHP Method

    public static function parseOriginPattern($originPattern, $component = -1)
    {
        $matched = preg_match('!\\A
                (?: (?P<scheme> https? ):// )?
                (?P<host> (?:\\*|[\\w-]+)(?:\\.[\\w-]+)* )
                (?: :(?P<port> (?: \\*|\\d+(?:-\\d+)? ) ) )?
            \\z!x', $originPattern, $captured);
        if (!$matched) {
            throw new \InvalidArgumentException("Invalid origin pattern {$originPattern}");
        }
        $components = ['scheme' => $captured['scheme'] ?: null, 'host' => $captured['host'], 'port' => array_key_exists('port', $captured) ? $captured['port'] : null];
        switch ($component) {
            case -1:
                return $components;
            case PHP_URL_SCHEME:
                return $components['scheme'];
            case PHP_URL_HOST:
                return $components['host'];
            case PHP_URL_PORT:
                return $components['port'];
        }
        throw new \InvalidArgumentException("Invalid component: {$component}");
    }

 /**
  * @dataProvider parseOriginPatternInvalidComponentDataProvider
  * @expectedException InvalidArgumentException
  */
 public function testParseOriginPatternInvalidComponent($pattern, $component)
 {
     OriginMatcher::parseOriginPattern($pattern, $component);
 }