345 struct	mdoc_node {  struct
346 	struct mdoc_node *parent; /* parent AST node */  argument
347 	struct mdoc_node *child; /* first child AST node */  argument
348 	struct mdoc_node *last; /* last child AST node */  argument
349 	struct mdoc_node *next; /* sibling AST node */  argument
350 	struct mdoc_node *prev; /* prior sibling AST node */  argument
370 	struct mdoc_node *pending; /* BLOCK */  argument
371 	struct mdoc_node *head; /* BLOCK */  argument
372 	struct mdoc_node *body; /* BLOCK */  argument
373 	struct mdoc_node *tail; /* BLOCK */  argument
390 const struct mdoc_node *mdoc_node(const struct mdoc *);  argument