/**
* Wrapper method to ask for input with optional validation.
*
* @param string $question
* The question to ask.
*
* @param \commpress\Cli\InputInterface $input
* The input interface.
* @param \commpress\Cli\OutputInterface $output
* The output interface.
* @param closure|null $validator
* (Optional) The closure for the validation.
*
* @return string
* The answer.
*/
public static function ask($question, InputInterface $input, OutputInterface $output, $validator = null)
{
$question = new Question($question . ' ');
if ($validator != null) {
$question->setValidator($validator);
}
$helper = self::$instance->getHelperSet()->get('question');
return $helper->ask($input, $output, $question);
}
