///
XHTMLStream & operator<<(docstring const &);
///
+ XHTMLStream & operator<<(const char *);
+ ///
XHTMLStream & operator<<(char_type);
///
XHTMLStream & operator<<(StartTag const &);
///
bool isTagOpen(std::string const &);
///
+ void writeError(std::string const &);
+ ///
odocstream & os_;
///
// int tab_;