gbranden pushed a commit to branch master
in repository groff.
commit e0bfeaae25224b1c6d26d305320237a9bf79cf5e
Author: G. Branden Robinson <[email protected]>
AuthorDate: Sun Aug 10 10:54:00 2025 -0500
[man]: Test "paragraph reset" of hyphenation mode.
* tmac/tests/an_paragraph-reset-restores-hyphenation-mode.sh: Add test.
* tmac/tmac.am (tmac_TESTS): Run test.
Prompted by discussion with Russ Allbery in Savannah #67363.
---
ChangeLog | 8 +
...an_paragraph-reset-restores-hyphenation-mode.sh | 178 +++++++++++++++++++++
tmac/tmac.am | 1 +
3 files changed, 187 insertions(+)
diff --git a/ChangeLog b/ChangeLog
index f9dd32fe4..0d7397c7d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2025-08-10 G. Branden Robinson <[email protected]>
+
+ * tmac/tests/an_paragraph-reset-restores-hyphenation-mode.sh:
+ Add test.
+ * tmac/tmac.am (tmac_TESTS): Run test.
+
+ Prompted by discussion with Russ Allbery in Savannah #67363.
+
2025-08-09 G. Branden Robinson <[email protected]>
* doc/ms.ms.in: Fix missing brace escape sequence.
diff --git a/tmac/tests/an_paragraph-reset-restores-hyphenation-mode.sh
b/tmac/tests/an_paragraph-reset-restores-hyphenation-mode.sh
new file mode 100755
index 000000000..f30d726ee
--- /dev/null
+++ b/tmac/tests/an_paragraph-reset-restores-hyphenation-mode.sh
@@ -0,0 +1,178 @@
+#!/bin/sh
+#
+# Copyright (C) 2025 G. Branden Robinson
+#
+# 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="${abs_top_builddir:-.}/test-groff"
+
+fail=
+
+wail () {
+ echo "...FAILED" >&2
+ fail=YES
+}
+
+# Ensure that the document's configured hyphenation mode is restored
+# upon a "paragraph reset".
+
+input1='.
+.TH foo 1 2025-08-10 "groff test suite"
+.SH Name
+foo \- frobnicate a bar
+.SH Description
+aardvarks
+abandoned
+abasement
+abatement
+abattoirs
+abdicated
+.nh \" should prevent hyphenation of next word
+abdicates
+.P
+abdominal
+abductees
+abducting
+abduction
+abductors
+abhorrent
+.hy \" should be a no-op
+abhorring
+.P
+abilities
+ablatives
+ablutions
+abnegated
+abnegates
+abolished
+abolishes
+.'
+
+output1=$(printf "%s\n" "$input1" \
+ | "$groff" -r LL=72n -m an -T ascii -P -cbou)
+echo "$output1"
+
+echo "checking that last word in first paragraph is not hyphenated" >&2
+echo "$output1" | grep -q ' abdicated$' || wail
+
+echo "checking that last word in second paragraph is hyphenated" >&2
+echo "$output1" | grep -q ' abhor-$' || wail
+
+echo "checking that last word in third paragraph is hyphenated" >&2
+echo "$output1" | grep -q ' abol-$' || wail
+
+input2='.
+.TH bar 1 2025-08-10 "groff test suite"
+.nr HY 0 \" page author hates automatic hyphenation
+.SH Name
+bar \- consume the output of foo(1)
+.SH Description
+abolition
+abominate
+aborigine
+abortions
+abounding
+abrasions
+.nh \" should be a no-op
+abrasives
+.P
+abridging
+abrogated
+abrogates
+abruptest
+abscessed
+abscesses
+.hy \" should permit hyphenation of next word
+abscissae
+.P
+abscissas
+absconded
+absentees
+absenting
+absolutes
+absolving
+absorbent
+.'
+
+output2=$(printf "%s\n" "$input2" \
+ | "$groff" -r LL=72n -m an -T ascii -P -cbou)
+echo "$output2"
+
+echo "checking that last word in first paragraph is not hyphenated" \
+ "(.nr HY 0)" >&2
+echo "$output2" | grep -q ' abrasives$' || wail
+
+echo "checking that last word in second paragraph is hyphenated" \
+ "(.nr HY 0)" >&2
+echo "$output2" | grep -q ' abscis-$' || wail
+
+echo "checking that last word in third paragraph is not hyphenated" \
+ "(.nr HY 0)" >&2
+echo "$output2" | grep -q ' absorbent$' || wail
+
+input3='.
+.TH baz 1 2025-08-10 "groff test suite"
+.nr HY 1 \" page author is virtuous aspiring typographer
+.SH Name
+baz \- reverse the transformation performed by bar(1)
+.SH Description
+absorbing
+abstained
+abstainer
+abstinent
+abstracts
+absurdest
+.nh \" should prevent hyphenation of next word
+absurdity
+.P
+abundance
+abusively
+abutments
+abysmally
+academics
+academies
+.hy \" should be a no-op
+accenting
+.P
+accepting
+accessing
+accession
+accessory
+accidents
+acclaimed
+acclimate
+.'
+
+output3=$(printf "%s\n" "$input3" \
+ | "$groff" -r LL=72n -m an -T ascii -P -cbou)
+echo "$output3"
+
+echo "checking that last word in first paragraph is not hyphenated" \
+ "(.nr HY 1)" >&2
+echo "$output3" | grep -q ' absurdity$' || wail
+
+echo "checking that last word in second paragraph is hyphenated" \
+ "(.nr HY 1)" >&2
+echo "$output3" | grep -q ' accent-$' || wail
+
+echo "checking that last word in third paragraph is hyphenated" \
+ "(.nr HY 1)" >&2
+echo "$output3" | grep -q ' accli-$' || wail
+
+test -z "$fail"
+
+# vim:set autoindent expandtab shiftwidth=4 tabstop=4 textwidth=72:
diff --git a/tmac/tmac.am b/tmac/tmac.am
index 8fa1c2a5f..61b9626d9 100644
--- a/tmac/tmac.am
+++ b/tmac/tmac.am
@@ -180,6 +180,7 @@ tmac_TESTS = \
tmac/tests/an_page-footers-present.sh \
tmac/tests/an_page-header-has-current-data.sh \
tmac/tests/an_paragraph-reset-preserves-line-length.sh \
+ tmac/tests/an_paragraph-reset-restores-hyphenation-mode.sh \
tmac/tests/an_reset-hyphenation-correctly.sh \
tmac/tests/an_title-abbreviation-works.sh \
tmac/tests/an_use-input-traps-correctly.sh \
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