/** * Pre-process the template source, making all registered TemplateProcessors * do what they need to do with the template source before it is parsed. * * @param string $templateSource * @return string */ protected function preProcessTemplateSource($templateSource) { foreach ($this->renderingContext->getTemplateProcessors() as $templateProcessor) { $templateSource = $templateProcessor->preProcessSource($templateSource); } return $templateSource; }