Finish the eqn syntactic parser. This correctly parses terms and does

the proper `define' dance, which amounts to pure word-replace (you can,
say, define `foo' as `define' then define `define' as something else).
eqn.c is now ready for some semantic parsing of `box' and `eqn'
productions as defined by the grammar.

1 files changed, 11 insertions, 8 deletions

diff --git a/libroff.h b/libroff.h
index 4691c2d1..1cb2f534 100644
--- a/libroff.h
+++ b/libroff.h
@@ -42,21 +42,24 @@ struct	tbl_node {
 	struct tbl_node	 *next;
 };
 
-struct	eqn_def {
-	char		 *key;
-	size_t		  keysz;
-	char		 *val;
-	size_t		  valsz;
-};
-
 struct	eqn_node {
 	struct eqn_def	 *defs;
 	size_t		  defsz;
+	char		 *data;
+	size_t		  cur;
+	size_t		  sz;
 	struct eqn	  eqn;
 	struct mparse	 *parse;
 	struct eqn_node  *next;
 };
 
+struct	eqn_def {
+	char		 *key;
+	size_t		  keysz;
+	char		 *val;
+	size_t		  valsz;
+};
+
 struct tbl_node	*tbl_alloc(int, int, struct mparse *);
 void		 tbl_restart(int, int, struct tbl_node *);
 void		 tbl_free(struct tbl_node *);
@@ -69,7 +72,7 @@ int		 tbl_cdata(struct tbl_node *, int, const char *);
 const struct tbl_span	*tbl_span(struct tbl_node *);
 void		 tbl_end(struct tbl_node *);
 struct eqn_node	*eqn_alloc(int, int, struct mparse *);
-void		 eqn_end(struct eqn_node *);
+enum rofferr	 eqn_end(struct eqn_node *);
 void		 eqn_free(struct eqn_node *);
 enum rofferr 	 eqn_read(struct eqn_node **, int, 
 			const char *, int, int *);