[bug #63289] .Bd -unfilled lines run together when .Sm and .No are both also in effect

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?63289>

                 Summary: .Bd -unfilled lines run together when .Sm and .No
are both also in effect
                 Project: GNU troff
               Submitter: None
               Submitted: Sat 29 Oct 2022 06:31:13 PM UTC
                Category: Macro mdoc
                Severity: 3 - Normal
              Item Group: Incorrect behaviour
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Sat 29 Oct 2022 06:31:13 PM UTC By: Anonymous
I noticed incorrect formatting of the URL examples in OpenBSD autoinstall(8)
man page when rendered with GNU man / nroff
(version 1.22.4, Archlinux package).[1]

I was able to cut it down to the following minimal reproducer:

.Dd bug
.Dt TEST 7
.Os
.Sh NAME
.Nm test
.Nd illustration of mdoc .Bd macro
.Sm off
.Bd -unfilled
.No line1
line2
line3
.Ed

line1 and line2 are run together in output of GNU "nroff -mdoc".

Removing either the .Sm or the .No macro makes GNU troff produce the (in my
understanding, and matching OpenBSD mandoc) correct rendering with all three
lines on separate lines.

[1]
Passage starting on line 99:
https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/share/man/man8/autoinstall.8?annotate=1.25







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