1 files changed, 78 insertions, 0 deletions
diff --git a/src/preproc/tbl/tests/check-horizontal-line-length.sh b/src/preproc/tbl/tests/check-horizontal-line-length.sh
new file mode 100755
index 0000000..3d5e2a2
--- /dev/null
+++ b/src/preproc/tbl/tests/check-horizontal-line-length.sh
@@ -0,0 +1,78 @@
+#!/bin/sh
+#
+# Copyright (C) 2022 Free Software Foundation, Inc.
+#
+# This file is part of groff.
+#
+# groff is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# groff is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+groff="${abs_top_builddir:-.}/test-groff"
+fail=
+
+wail () {
+    echo "...FAILED" >&2
+    echo "$output"
+    fail=yes
+}
+
+# GNU tbl draws horizontal lines 1n wider than they need to be on nroff
+# devices to enable them to cross a vertical line on the right-hand
+# side.
+
+input='.ll 10n
+.TS
+L.
+_
+1234567890
+.TE
+.pl \n(nlu
+'
+
+echo "checking length of plain horizontal rule" >&2
+output=$(printf "%s" "$input" | "$groff" -Tascii -t)
+echo "$output" | grep -Eqx -- '-{11}' || wail
+
+input='.ll 12n
+.TS
+| L |.
+_
+1234567890
+_
+.TE
+.pl \n(nlu
+'
+
+echo "checking intersection of vertical and horizontal rules" >&2
+output=$(printf "%s" "$input" | "$groff" -Tascii -t)
+echo "$output" | sed -n '1p' | grep -Eqx '\+-{12}\+' || wail
+echo "$output" | sed -n '3p' | grep -Eqx '\+-{12}\+' || wail
+
+input='.ll 12n
+.TS
+box;
+L.
+1234567890
+.TE
+.pl \n(nlu
+'
+
+echo "checking width of boxed table" >&2
+output=$(printf "%s" "$input" | "$groff" -Tascii -t)
+echo "$output" | sed -n '1p' | grep -Eqx '\+-{12}\+' || wail
+echo "$output" | sed -n '3p' | grep -Eqx '\+-{12}\+' || wail
+
+test -z "$fail"
+
+# vim:set ai et sw=4 ts=4 tw=72: