function TwigExtension::escapePlaceholder

Provides a placeholder wrapper around ::escapeFilter.

Parameters

\Twig\Environment $env: A Twig Environment instance.

mixed $string: The value to be escaped.

Return value

string|null The escaped, rendered output, or NULL if there is no valid output.

File

core/lib/Drupal/Core/Template/TwigExtension.php, line 392

Class

TwigExtension

A class providing Drupal Twig extensions.

Namespace

Drupal\Core\Template

Code

public function escapePlaceholder(Environment $env, $string) {
    $return = $this->escapeFilter($env, $string);
    return $return ? '<em class="placeholder">' . $return . '</em>' : NULL;
}