extractText example

// Remove all translated text.         return NULL;
      }
      elseif ($processing['manner'] == 'replace_translated') {
        // Replace with a dummy string.         $node = new TextNode('dummy', 0);
      }
      elseif ($processing['manner'] == 'translated_chunk') {
        // Return the text only if it's the next chunk we're supposed to return.         // Add a wrapper, because non-translated nodes will still be returned.         if ($this_chunk == $processing['return_chunk']) {
          return new TextNode(static::DELIMITER . $this->extractText($node) . static::DELIMITER, 0);
        }
        else {
          return NULL;
        }
      }
    }

    if ($processing['manner'] == 'remove_translated' && $node instanceof TextNode) {
      // For this processing, we also want to remove all HTML tags and       // whitespace from TextNodes.       $text = $node->getAttribute('data');