public function CodeMirrorEditor::process in The CodeMirror Editor 8

Performs the filter processing.

Parameters

string $text: The text string to be filtered.

string $langcode: The language code of the text to be filtered.

Return value

\Drupal\filter\FilterProcessResult The filtered text, wrapped in a FilterProcessResult object, and possibly with associated assets, cacheability metadata and placeholders.

Overrides FilterInterface::process

File

src/Plugin/Filter/CodeMirrorEditor.php, line 40

Class

CodeMirrorEditor: Provides a 'CodeMirror' filter.

Namespace

Drupal\codemirror_editor\Plugin\Filter

Code

public function process($text, $langcode) {
  $options = $this->settings;
  $options['readOnly'] = TRUE;
  $options['toolbar'] = FALSE;
  $pattern = '#<code\\s+?data-mode\\s*?=\\s*?"([a-z0-9_/\\-]*?)"[^>]*?>(.*?)</\\s*code\\s*>#is';
  $processor = function ($matches) use ($options) {
    $options['mode'] = self::normalizeMode($matches[1]);
    $options = Html::escape(json_encode($options));
    $code = Html::escape($matches[2]);
    return '<code data-codemirror="' . $options . '">' . $code . '</code>';
  };
  $output = preg_replace_callback($pattern, $processor, $text, -1, $count);
  if ($count > 0) {
    $build['#attached']['library'][] = 'codemirror_editor/formatter';
    \Drupal::service('renderer')
      ->render($build);
  }
  return new FilterProcessResult($output);
}

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