public function alpha(array $options) {
        if (!$options['regex'])
            $options['regex'] = ($options['acceptSpace']) ? '/[^a-zA-Z\s]/' : '/[^a-zA-Z]/';
        if (!preg_match($options['regex'], $this->elementData))
            return true;

        $this->addError($this->checkMessage('Value can only contain alphabets', $options));
        return false;
    }