URL: <https://savannah.gnu.org/bugs/?66392>
Summary: [troff] loses track of hyphenation mode in
environment 1
Group: GNU roff
Submitter: gbranden
Submitted: Thu 31 Oct 2024 09:35:41 AM UTC
Category: Macro package me
Severity: 3 - Normal
Item Group: Incorrect behaviour
Status: In Progress
Privacy: Public
Assigned to: gbranden
Open/Closed: Open
Discussion Lock: Any
Planned Release: None
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Follow-up Comments:
-------------------------------------------------------
Date: Thu 31 Oct 2024 09:35:41 AM UTC By: G. Branden Robinson <gbranden>
Problem affects _groff_ 1.22.3 and probably goes way back.
$ git diff doc/meintro.me.in
diff --git a/doc/meintro.me.in b/doc/meintro.me.in
index bf01a3fcf..0a346c913 100644
--- a/doc/meintro.me.in
+++ b/doc/meintro.me.in
@@ -656,7 +656,9 @@ and
to surround the quote.
For example,
the input:
+.tm GBR1: .hla=\n[.hla], .hy=\n[.hy]
.(b
+.tm GBR2: .hla=\n[.hla], .hy=\n[.hy]
As Weizenbaum points out:
\&.(q
It is said that to explain is to explain away.
@@ -664,6 +666,7 @@ This maxim is nowhere so well fulfilled
as in the areas of computer programming,...
\&.)q
.)b
+.tm GBR3: .hla=\n[.hla], .hy=\n[.hy]
generates as output:
.lp
As Weizenbaum points out:
$ ~/groff-1.22.3/bin/groff -me -z build/doc/meintro.me
GBR1: .hla=us, .hy=14
GBR2: .hla=us, .hy=1
GBR3: .hla=us, .hy=14
The same problem happens with environment 2, but since _me_ uses that for
headers and footers, where hyphenation breaking typically does not occur, it
would be harder to notice.
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