+int mdoc_vwarn(struct mdoc *, int, int,
+ enum mdoc_warn, const char *, ...);
+void mdoc_vmsg(struct mdoc *, int, int,
+ const char *, ...);
+int mdoc_verr(struct mdoc *, int, int,
+ const char *, ...);
+
+int mdoc_macro(MACRO_PROT_ARGS);
+int mdoc_find(const struct mdoc *, const char *);
+int mdoc_word_alloc(struct mdoc *,
+ int, int, const char *);
+int mdoc_elem_alloc(struct mdoc *, int, int,
+ int, size_t, const struct mdoc_arg *);
+int mdoc_block_alloc(struct mdoc *, int, int,
+ int, size_t, const struct mdoc_arg *);
+int mdoc_root_alloc(struct mdoc *);
+int mdoc_head_alloc(struct mdoc *, int, int, int);
+int mdoc_tail_alloc(struct mdoc *, int, int, int);
+int mdoc_body_alloc(struct mdoc *, int, int, int);
+void mdoc_node_free(struct mdoc_node *);
+void mdoc_node_freelist(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_iscdelim(char);
+size_t mdoc_isescape(const char *);
+enum mdoc_sec mdoc_atosec(const char *);
+enum mdoc_msec mdoc_atomsec(const char *);
+enum mdoc_vol mdoc_atovol(const char *);
+enum mdoc_arch mdoc_atoarch(const char *);
+time_t mdoc_atotime(const char *);
+
+char *mdoc_type2a(enum mdoc_type);
+char *mdoc_node2a(struct mdoc_node *);
+
+int mdoc_valid_pre(struct mdoc *,
+ const struct mdoc_node *);
+int mdoc_valid_post(struct mdoc *);
+int mdoc_action_pre(struct mdoc *, struct mdoc_node *);
+int mdoc_action_post(struct mdoc *);
+
+int mdoc_argv(struct mdoc *, int, int,
+ struct mdoc_arg *, int *, char *);
+#define ARGV_ERROR (-1)
+#define ARGV_EOLN (0)
+#define ARGV_ARG (1)
+#define ARGV_WORD (2)
+void mdoc_argv_free(int, struct mdoc_arg *);
+int mdoc_args(struct mdoc *, int,
+ int *, char *, int, char **);
+#define ARGS_ERROR (-1)
+#define ARGS_EOLN (0)
+#define ARGS_WORD (1)
+#define ARGS_PUNCT (2)
+#define ARGS_QWORD (3)
+#define ARGS_PHRASE (4)
+
+int xstrlcats(char *, const struct mdoc_node *, size_t);
+int xstrlcat(char *, const char *, size_t);
+int xstrlcpy(char *, const char *, size_t);
+int xstrcmp(const char *, const char *);
+int xstrncmp(const char *, const char *, size_t);
+void *xcalloc(size_t, size_t);
+char *xstrdup(const char *);
+
+int macro_end(struct mdoc *);