<?php

namespace Drupal\{{ machine_name }};

/**
 * Twig extension.
 */
class {{ class }} extends \Twig_Extension {

  /**
   * {@inheritdoc}
   */
  public function getName() {
    return '{{ machine_name }}';
  }

  /**
   * {@inheritdoc}
   */
  public function getFunctions() {
    return [
      new \Twig_SimpleFunction('foo', function ($argument = NULL) {
        return 'Foo: ' . $argument;
      }),
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function getFilters() {
    return [
      new \Twig_SimpleFilter('bar', function ($text) {
        return str_replace('bar', 'BAR', $text);
      }),
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function getTests() {
    return [
      new \Twig_SimpleTest('color', function ($text) {
        return preg_match('/^#(?:[0-9a-f]{3}){1,2}$/i', $text);
      }),
    ];
  }

}