TwigExtension::getFilters

public TwigExtension::getFilters()

public function getFilters() {
  return array(
    // Translation filters.
    new \Twig_SimpleFilter('t', 't', array('is_safe' => array('html'))),
    new \Twig_SimpleFilter('trans', 't', array('is_safe' => array('html'))),
    // The "raw" filter is not detectable when parsing "trans" tags. To detect
    // which prefix must be used for translation (@, !, %), we must clone the
    // "raw" filter and give it identifiable names. These filters should only
    // be used in "trans" tags.
    // @see TwigNodeTrans::compileString()
    new \Twig_SimpleFilter('placeholder', [$this, 'escapePlaceholder'], array('is_safe' => array('html'), 'needs_environment' => TRUE)),

    // Replace twig's escape filter with our own.
    new \Twig_SimpleFilter('drupal_escape', [$this, 'escapeFilter'], array('needs_environment' => TRUE, 'is_safe_callback' => 'twig_escape_filter_is_safe')),

    // Implements safe joining.
    // @todo Make that the default for |join? Upstream issue:
    //   https://github.com/fabpot/Twig/issues/1420
    new \Twig_SimpleFilter('safe_join', [$this, 'safeJoin'], ['needs_environment' => TRUE, 'is_safe' => ['html']]),

    // Array filters.
    new \Twig_SimpleFilter('without', 'twig_without'),

    // CSS class and ID filters.
    new \Twig_SimpleFilter('clean_class', '\Drupal\Component\Utility\Html::getClass'),
    new \Twig_SimpleFilter('clean_id', '\Drupal\Component\Utility\Html::getId'),
    // This filter will render a renderable array to use the string results.
    new \Twig_SimpleFilter('render', array($this, 'renderVar')),
    new \Twig_SimpleFilter('format_date', array($this->dateFormatter, 'format')),
  );
}