int ctf_visitor_print_xml(FILE *fd, int depth, struct ctf_node *node);
int ctf_visitor_semantic_check(FILE *fd, int depth, struct ctf_node *node);
int ctf_visitor_parent_links(FILE *fd, int depth, struct ctf_node *node);
int ctf_visitor_print_xml(FILE *fd, int depth, struct ctf_node *node);
int ctf_visitor_semantic_check(FILE *fd, int depth, struct ctf_node *node);
int ctf_visitor_parent_links(FILE *fd, int depth, struct ctf_node *node);