void printraw(std::ostream & os) const;
void printtree(std::ostream & os, unsigned indent) const;
void print(std::ostream & os, unsigned upper_precedence=0) const;
void printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence) const;
bool info(unsigned inf) const;
void printraw(std::ostream & os) const;
void printtree(std::ostream & os, unsigned indent) const;
void print(std::ostream & os, unsigned upper_precedence=0) const;
void printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence) const;
bool info(unsigned inf) const;