public String toInnerHtml(Node node,Appendable appendable){
  NodeVisitor renderer=createRenderer(appendable);
  node.visitChildren(renderer);
  return appendable.toString();
}

public String toInnerHtml ( Node node , Appendable appendable ) { NodeVisitor renderer = createRenderer ( appendable ) ; node . visitChildren ( renderer ) ; return appendable . toString ( ) ; }
renders node children to appendable .
