URL: <https://savannah.gnu.org/bugs/?67577>
Summary: [troff] `\X` escape sequences suppresses adjacent
hyphenation break points
Group: GNU roff
Submitter: gbranden
Submitted: Sat 04 Oct 2025 10:19:20 AM UTC
Category: Core
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: Sat 04 Oct 2025 10:19:20 AM UTC By: G. Branden Robinson <gbranden>
Consider:
.ll 3n
\X@tty:@altar
.br
al\X@tty:@tar
.br
altar\X@tty:@
Run with `groff -T ascii` from any recent released _groff_--I tried 1.22.3,
1.22.4, and 1.23.0, and ignored diagnostics--one gets this output.
al-
tar
altar
al-
tar
That's wrong. `\X` doesn't participate in hyphenation or breaking decisions,
and should not affect them.
I have a fix pending. This bug is so old that our Texinfo manual warns the
reader about it. I think blame for it can be attributed to (are you sitting
down?) lousy choices for symbol names.
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