public function TwigExtension::getFilters in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Template/TwigExtension.php \Drupal\Core\Template\TwigExtension::getFilters()
2. 10 core/lib/Drupal/Core/Template/TwigExtension.php \Drupal\Core\Template\TwigExtension::getFilters()

File

core/lib/Drupal/Core/Template/TwigExtension.php, line 159

Class

TwigExtension

A class providing Drupal Twig extensions.

Namespace

Drupal\Core\Template

Code

public function getFilters() {
  return [
    // Translation filters.
    new \Twig_SimpleFilter('t', 't', [
      'is_safe' => [
        'html',
      ],
    ]),
    new \Twig_SimpleFilter('trans', 't', [
      'is_safe' => [
        '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',
    ], [
      'is_safe' => [
        'html',
      ],
      'needs_environment' => TRUE,
    ]),
    // Replace twig's escape filter with our own.
    new \Twig_SimpleFilter('drupal_escape', [
      $this,
      'escapeFilter',
    ], [
      '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', [
      $this,
      'withoutFilter',
    ]),
    // 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', [
      $this,
      'renderVar',
    ]),
    new \Twig_SimpleFilter('format_date', [
      $this->dateFormatter,
      'format',
    ]),
  ];
}