1 files changed, 77 insertions, 0 deletions
diff --git a/roff.h b/roff.h
index e9566c1a..232100c8 100644
--- a/roff.h
+++ b/roff.h
@@ -16,6 +16,36 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+struct	mdoc_arg;
+union	mdoc_data;
+
+enum	roff_sec {
+	SEC_NONE = 0,
+	SEC_NAME,
+	SEC_LIBRARY,
+	SEC_SYNOPSIS,
+	SEC_DESCRIPTION,
+	SEC_CONTEXT,
+	SEC_IMPLEMENTATION,	/* IMPLEMENTATION NOTES */
+	SEC_RETURN_VALUES,
+	SEC_ENVIRONMENT,
+	SEC_FILES,
+	SEC_EXIT_STATUS,
+	SEC_EXAMPLES,
+	SEC_DIAGNOSTICS,
+	SEC_COMPATIBILITY,
+	SEC_ERRORS,
+	SEC_SEE_ALSO,
+	SEC_STANDARDS,
+	SEC_HISTORY,
+	SEC_AUTHORS,
+	SEC_CAVEATS,
+	SEC_BUGS,
+	SEC_SECURITY,
+	SEC_CUSTOM,
+	SEC__MAX
+};
+
 enum	roff_type {
 	ROFFT_ROOT,
 	ROFFT_BLOCK,
@@ -27,3 +57,50 @@ enum	roff_type {
 	ROFFT_TBL,
 	ROFFT_EQN
 };
+
+/*
+ * Indicates that a BODY's formatting has ended, but
+ * the scope is still open.  Used for badly nested blocks.
+ */
+enum	mdoc_endbody {
+	ENDBODY_NOT = 0,
+	ENDBODY_SPACE,	/* Is broken: append a space. */
+	ENDBODY_NOSPACE	/* Is broken: don't append a space. */
+};
+
+struct	roff_node {
+	struct roff_node *parent;  /* Parent AST node. */
+	struct roff_node *child;   /* First child AST node. */
+	struct roff_node *last;    /* Last child AST node. */
+	struct roff_node *next;    /* Sibling AST node. */
+	struct roff_node *prev;    /* Prior sibling AST node. */
+	struct roff_node *head;    /* BLOCK */
+	struct roff_node *body;    /* BLOCK/ENDBODY */
+	struct roff_node *tail;    /* BLOCK */
+	struct mdoc_arg	 *args;    /* BLOCK/ELEM */
+	union mdoc_data	 *norm;    /* Normalized arguments. */
+	char		 *string;  /* TEXT */
+	const struct tbl_span *span; /* TBL */
+	const struct eqn *eqn;	   /* EQN */
+	int		  nchild;  /* Number of child nodes. */
+	int		  line;    /* Input file line number. */
+	int		  pos;     /* Input file column number. */
+	int		  tok;     /* Request or macro ID. */
+	int		  flags;
+#define	MDOC_VALID	 (1 << 0)  /* Has been validated. */
+#define	MDOC_ENDED	 (1 << 1)  /* Gone past body end mark. */
+#define MDOC_EOS	 (1 << 2)  /* At sentence boundary. */
+#define	MDOC_LINE	 (1 << 3)  /* First macro/text on line. */
+#define MDOC_SYNPRETTY	 (1 << 4)  /* SYNOPSIS-style formatting. */
+#define MDOC_BROKEN	 (1 << 5)  /* Must validate parent when ending. */
+#define	MDOC_DELIMO	 (1 << 6)
+#define	MDOC_DELIMC	 (1 << 7)
+#define	MAN_VALID	  MDOC_VALID
+#define	MAN_EOS		  MDOC_EOS
+#define	MAN_LINE	  MDOC_LINE
+	int		  prev_font; /* Before entering this node. */
+	int		  aux;     /* Decoded node data, type-dependent. */
+	enum roff_type	  type;    /* AST node type. */
+	enum roff_sec	  sec;     /* Current named section. */
+	enum mdoc_endbody end;     /* BODY */
+};