AlphaDashValidator.php in Form API Validation 8.2
File
src/Plugin/FapiValidationValidator/AlphaDashValidator.phpView source
<?php
namespace Drupal\fapi_validation\Plugin\FapiValidationValidator;
use Drupal\Core\Form\FormStateInterface;
use Drupal\fapi_validation\FapiValidationValidatorsInterface;
use Drupal\fapi_validation\Validator;
/**
 * Fapi Validation Plugin for Alpha Dash validation.
 *
 * @FapiValidationValidator(
 *   id = "alpha_dash",
 *   error_message = "Use only alpha numerics, hyphen and underscore at %field."
 * )
 */
class AlphaValidator implements FapiValidationValidatorsInterface {
  /**
   * {@inheritdoc}
   */
  public function validate(Validator $validator, array $element, FormStateInterface $form_state) {
    return (bool) preg_match('/^[-\\pL\\pN_]+$/uD', (string) $validator
      ->getValue());
  }
}Classes
| Name   | Description | 
|---|---|
| AlphaValidator | Fapi Validation Plugin for Alpha Dash validation. | 
