/** * Visit this content. * @param IdmlVisitor $visitor * @param int $depth */ public function accept(IdmlVisitor $visitor, $depth = 0) { $visitor->visitContent($this, $depth); // Produce the text and IDML processing instruction nodes foreach ($this->childrenElements as $child) { $child->accept($visitor, $depth + 1); } $visitor->visitContentEnd($this, $depth); }