{ _leading.erase(); _content.erase(); _end_leading.erase(); _trailing.erase();
{ while(!empty()) { XMLNode* node = back(); pop_back();
	void clear()	{		_leading.erase();		_content.erase();		_end_leading.erase();		_trailing.erase();		_attributes.clear();		_children.clear();		XS_String::erase();	}