===================================================================
RCS file: /cvs/mandoc/tbl_layout.c,v
retrieving revision 1.19
retrieving revision 1.21
diff -u -p -r1.19 -r1.21
--- mandoc/tbl_layout.c	2011/04/07 01:08:42	1.19
+++ mandoc/tbl_layout.c	2011/09/03 00:29:21	1.21
@@ -1,4 +1,4 @@
-/*	$Id: tbl_layout.c,v 1.19 2011/04/07 01:08:42 joerg Exp $ */
+/*	$Id: tbl_layout.c,v 1.21 2011/09/03 00:29:21 kristaps Exp $ */
 /*
  * Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -72,6 +72,23 @@ mods(struct tbl_node *tbl, struct tbl_cell *cp, 
 	char		 buf[5];
 	int		 i;
 
+	/* Not all types accept modifiers. */
+
+	switch (cp->pos) {
+	case (TBL_CELL_DOWN):
+		/* FALLTHROUGH */
+	case (TBL_CELL_HORIZ):
+		/* FALLTHROUGH */
+	case (TBL_CELL_DHORIZ):
+		/* FALLTHROUGH */
+	case (TBL_CELL_VERT):
+		/* FALLTHROUGH */
+	case (TBL_CELL_DVERT):
+		return(1);
+	default:
+		break;
+	}
+
 mod:
 	/* 
 	 * XXX: since, at least for now, modifiers are non-conflicting
@@ -156,6 +173,8 @@ mod:
 		goto mod;
 	case ('f'):
 		break;
+	case ('r'):
+		/* FALLTHROUGH */
 	case ('b'):
 		/* FALLTHROUGH */
 	case ('i'):
@@ -168,11 +187,19 @@ mod:
 	}
 
 	switch (tolower((unsigned char)p[(*pos)++])) {
+	case ('3'):
+		/* FALLTHROUGH */
 	case ('b'):
 		cp->flags |= TBL_CELL_BOLD;
 		goto mod;
+	case ('2'):
+		/* FALLTHROUGH */
 	case ('i'):
 		cp->flags |= TBL_CELL_ITALIC;
+		goto mod;
+	case ('1'):
+		/* FALLTHROUGH */
+	case ('r'):
 		goto mod;
 	default:
 		break;