[groff] 25/32: [tbl]: Regression-test Savannah #61040.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 2d2bb4749aa2b490bb7f6275fa45eff97aeca31b
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Tue Nov 29 07:46:59 2022 -0600

    [tbl]: Regression-test Savannah #61040.
    
    * src/preproc/tbl/tests/save-and-restore-line-numbering.sh: Do it.
    * src/preproc/tbl/tbl.am (tbl_TESTS): Run test.
    
    Test fails at this commit.
---
 ChangeLog                                          |  8 ++
 src/preproc/tbl/tbl.am                             |  1 +
 .../tbl/tests/save-and-restore-line-numbering.sh   | 85 ++++++++++++++++++++++
 3 files changed, 94 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index da18773c7..8173b0cb8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2022-11-29  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+       [tbl]: Regression-test Savannah #61040.
+
+       * src/preproc/tbl/tests/save-and-restore-line-numbering.sh: Do
+       it.
+       * src/preproc/tbl/tbl.am (tbl_TESTS): Run test.
+
 2022-11-28  G. Branden Robinson <g.branden.robinson@gmail.com>
 
        [troff]: Implement new `.nn` register to report the remaining
diff --git a/src/preproc/tbl/tbl.am b/src/preproc/tbl/tbl.am
index b2b1b3c4f..ed092ad4a 100644
--- a/src/preproc/tbl/tbl.am
+++ b/src/preproc/tbl/tbl.am
@@ -35,6 +35,7 @@ tbl_TESTS = \
   src/preproc/tbl/tests/do-not-segv-when-backslash-R-in-text-block.sh \
   src/preproc/tbl/tests/format-time-diagnostics-work.sh \
   src/preproc/tbl/tests/save-and-restore-hyphenation-parameters.sh \
+  src/preproc/tbl/tests/save-and-restore-line-numbering.sh \
   src/preproc/tbl/tests/save-and-restore-tab-stops.sh \
   src/preproc/tbl/tests/table-lacks-spurious-top-border.sh
 TESTS += $(tbl_TESTS)
diff --git a/src/preproc/tbl/tests/save-and-restore-line-numbering.sh 
b/src/preproc/tbl/tests/save-and-restore-line-numbering.sh
new file mode 100755
index 000000000..592b43acd
--- /dev/null
+++ b/src/preproc/tbl/tests/save-and-restore-line-numbering.sh
@@ -0,0 +1,85 @@
+#!/bin/sh
+#
+# Copyright (C) 2022 Free Software Foundation, Inc.
+#
+# This file is part of groff.
+#
+# groff is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# groff is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+groff="${abs_top_builddir:-.}/test-groff"
+
+fail=
+
+wail () {
+    echo ...FAILED >&2
+    fail=YES
+}
+
+# Regression-test Savannah #60140.
+#
+# Line numbering needs to be suspended within a table and restored
+# afterward.  Historical implementations handled line numbering in
+# tables badly when text blocks were used.
+
+input='.nm 1
+Here is a line of output.
+Sic transit adispicing meatballs.
+We pad it out with more content to ensure that the line breaks.
+.TS
+L.
+This is my table.
+There are many like it but this one is mine.
+T{
+Ut enim ad minima veniam,
+quis nostrum exercitationem ullam corporis suscipitlaboriosam,
+nisi ut aliquid ex ea commodi consequatur?
+T}
+.TE
+What is the line number now?'
+
+output=$(printf "%s\n" "$input" | "$groff" -Tascii -P-cbou -t)
+echo "$output"
+
+echo "testing that line numbering is suppressed in table" >&2
+echo "$output" | grep -Fqx 'This is my table.' || wail
+
+echo "testing that line numbering is restored after table" >&2
+echo "$output" | grep -Eq '3 +What is the line number now\?' || wail
+
+input='.nf
+.nm 1
+test of line numbering suppression
+five
+four
+.nn 3
+three
+.TS
+L.
+I am a table.
+I have two rows.
+.TE
+two
+one
+numbering returns here'
+
+output=$(printf "%s\n" "$input" | "$groff" -Tascii -P-cbou -t)
+echo "$output"
+
+echo "testing that suppressed numbering is restored correctly" >&2
+echo "$output" | grep -Eq '4 +numbering returns here' || wail
+
+test -z "$fail"
+
+# vim:set ai et sw=4 ts=4 tw=72: