+int mdoc_err(struct mdoc *, int, int, enum mdoc_err);
+int mdoc_warn(struct mdoc *, int, int, enum mdoc_warn);
+void mdoc_msg(struct mdoc *, int, const char *, ...);
+int mdoc_macro(struct mdoc *, int, int, int *, char *);
+int mdoc_find(const struct mdoc *, const char *);
+void mdoc_word_alloc(struct mdoc *, int, const char *);
+void mdoc_elem_alloc(struct mdoc *, int, int,
+ size_t, const struct mdoc_arg *,
+ size_t, const char **);
+void mdoc_block_alloc(struct mdoc *, int, int,
+ size_t, const struct mdoc_arg *);
+void mdoc_head_alloc(struct mdoc *,
+ int, int, size_t, const char **);
+void mdoc_body_alloc(struct mdoc *, int, int);
+void mdoc_node_free(struct mdoc_node *);
+void mdoc_sibling(struct mdoc *, int, struct mdoc_node **,
+ struct mdoc_node **, struct mdoc_node *);
+void *mdoc_tokhash_alloc(void);
+int mdoc_tokhash_find(const void *, const char *);
+void mdoc_tokhash_free(void *);
+int mdoc_isdelim(const char *);
+int mdoc_iscdelim(char);
+enum mdoc_sec mdoc_atosec(size_t, const char **);
+enum mdoc_msec mdoc_atomsec(const char *);
+enum mdoc_vol mdoc_atovol(const char *);
+enum mdoc_arch mdoc_atoarch(const char *);
+enum mdoc_att mdoc_atoatt(const char *);
+time_t mdoc_atotime(const char *);