===================================================================
RCS file: /cvs/mandoc/tbl_data.c,v
retrieving revision 1.17
retrieving revision 1.20
diff -u -p -r1.17 -r1.20
--- mandoc/tbl_data.c	2011/01/10 14:56:06	1.17
+++ mandoc/tbl_data.c	2011/01/25 12:16:22	1.20
@@ -1,6 +1,7 @@
-/*	$Id: tbl_data.c,v 1.17 2011/01/10 14:56:06 kristaps Exp $ */
+/*	$Id: tbl_data.c,v 1.20 2011/01/25 12:16:22 schwarze Exp $ */
 /*
- * Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -30,7 +31,9 @@
 
 static	int	data(struct tbl_node *, struct tbl_span *, 
 			int, const char *, int *);
+static	struct tbl_span	*newspan(struct tbl_node *, struct tbl_row *);
 
+
 static int
 data(struct tbl_node *tbl, struct tbl_span *dp, 
 		int ln, const char *p, int *pos)
@@ -122,7 +125,8 @@ data(struct tbl_node *tbl, struct tbl_span *dp, 
 		dat->pos = TBL_DATA_DATA;
 
 	if (TBL_CELL_HORIZ == dat->layout->pos ||
-			TBL_CELL_DHORIZ == dat->layout->pos)
+			TBL_CELL_DHORIZ == dat->layout->pos ||
+			TBL_CELL_DOWN == dat->layout->pos)
 		if (TBL_DATA_DATA == dat->pos && '\0' != *dat->string)
 			TBL_MSG(tbl, MANDOCERR_TBLIGNDATA, ln, sv);
 
@@ -165,9 +169,33 @@ tbl_cdata(struct tbl_node *tbl, int ln, const char *p)
 	} else
 		dat->string = mandoc_strdup(p);
 
+	if (TBL_CELL_DOWN == dat->layout->pos) 
+		TBL_MSG(tbl, MANDOCERR_TBLIGNDATA, ln, pos);
+
 	return(0);
 }
 
+static struct tbl_span *
+newspan(struct tbl_node *tbl, struct tbl_row *rp)
+{
+	struct tbl_span	*dp;
+
+	dp = mandoc_calloc(1, sizeof(struct tbl_span));
+	dp->tbl = &tbl->opts;
+	dp->layout = rp;
+	dp->head = tbl->first_head;
+
+	if (tbl->last_span) {
+		tbl->last_span->next = dp;
+		tbl->last_span = dp;
+	} else {
+		tbl->last_span = tbl->first_span = dp;
+		dp->flags |= TBL_SPAN_FIRST;
+	}
+
+	return(dp);
+}
+
 int
 tbl_data(struct tbl_node *tbl, int ln, const char *p)
 {
@@ -188,33 +216,38 @@ tbl_data(struct tbl_node *tbl, int ln, const char *p)
 	 * If there's no last parsed span, use the first row.  Lastly,
 	 * if the last span was a horizontal line, use the same layout
 	 * (it doesn't "consume" the layout).
-	 *
-	 * In the end, this can be NULL!
 	 */
 
 	if (tbl->last_span) {
 		assert(tbl->last_span->layout);
-		if (tbl->last_span->pos == TBL_SPAN_DATA)
-			rp = tbl->last_span->layout->next;
-		else
+		if (tbl->last_span->pos == TBL_SPAN_DATA) {
+			for (rp = tbl->last_span->layout->next;
+					rp && rp->first; rp = rp->next) {
+				switch (rp->first->pos) {
+				case (TBL_CELL_HORIZ):
+					dp = newspan(tbl, rp);
+					dp->pos = TBL_SPAN_HORIZ;
+					continue;
+				case (TBL_CELL_DHORIZ):
+					dp = newspan(tbl, rp);
+					dp->pos = TBL_SPAN_DHORIZ;
+					continue;
+				default:
+					break;
+				}
+				break;
+			}
+		} else
 			rp = tbl->last_span->layout;
+
 		if (NULL == rp)
 			rp = tbl->last_span->layout;
 	} else
 		rp = tbl->first_row;
 
-	dp = mandoc_calloc(1, sizeof(struct tbl_span));
-	dp->tbl = &tbl->opts;
-	dp->layout = rp;
-	dp->head = tbl->first_head;
+	assert(rp);
 
-	if (tbl->last_span) {
-		tbl->last_span->next = dp;
-		tbl->last_span = dp;
-	} else {
-		tbl->last_span = tbl->first_span = dp;
-		dp->flags |= TBL_SPAN_FIRST;
-	}
+	dp = newspan(tbl, rp);
 
 	if ( ! strcmp(p, "_")) {
 		dp->pos = TBL_SPAN_HORIZ;