Crummy\Phlack\WebHook\WebHook::setDefaultOptions PHP Method

    protected function setDefaultOptions(OptionsResolver $resolver)
    {
        parent::setDefaultOptions($resolver);
        $resolver->setDefaults(['command' => function (Options $options) {
            $text = $options['text'];
            $delimiterPos = strpos($text, self::COMMAND_DELIMITER);
            $delimiterPos = false === $delimiterPos ? strpos($text, ' ') : $delimiterPos;
            return false === $delimiterPos ? $text : substr($text, 0, $delimiterPos);
        }]);
        $resolver->setNormalizers(['command' => function (Options $options, $value) {
            if (null !== $value) {
                $value = preg_replace('/[^a-z0-9\\-]/', '', strtolower($value));
                if (false === strpos($value, self::COMMAND_DELIMITER)) {
                    $value .= self::COMMAND_DELIMITER;
                }
            }
            return $value;
        }]);
    }