Multiple tbl(7) improvements:

* Do not discard data that lacks a matching layout cell but remains
within the number of columns of the table as a whole.
* Do not insert dummy data rows for any layout row starting with a
horizontal line, but only for layout rows that would discard all
the data on a matching non-empty data row.
* Print horizontal lines specified in the layout even if there is
no matching data cell.
* Improve the logic for extending vertical lines to adjacent rows,
for choosing cross marks versus line segments, and some related details.

1 files changed, 6 insertions, 3 deletions

diff --git a/regress/tbl/layout/Makefile b/regress/tbl/layout/Makefile
index 9ad5d7f9..9cc65754 100644
--- a/regress/tbl/layout/Makefile
+++ b/regress/tbl/layout/Makefile
@@ -1,12 +1,15 @@
 # $OpenBSD: Makefile,v 1.2 2015/01/30 00:27:09 schwarze Exp $
 
-REGRESS_TARGETS	 = center complex empty emptyline numbers span
+REGRESS_TARGETS	 = center complex empty emptyline
+REGRESS_TARGETS	+= lines lines-nogroff numbers span
 LINT_TARGETS	 = complex empty
 
-# groff-1.22.3 defect:
+# groff-1.22.3 defects:
 # - When the layout is completely empty,
 #   GNU eqn produces no output whatsoever for the whole table.
+# - When there is no horizontal line at the top,
+#   vertical lines extend beyond the top of the table.
 
-SKIP_GROFF	 = empty
+SKIP_GROFF	 = empty lines-nogroff
 
 .include <bsd.regress.mk>