Update of bug #64515 (project groff):
Status: In Progress => Fixed
Open/Closed: Open => Closed
Planned Release: None => 1.24.0
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Follow-up Comment #2:
commit 2a22ee31ebdaeab02a58825b3c4450c7bb70beee
Author: G. Branden Robinson <g.branden.robin...@gmail.com>
Date: Fri Aug 4 09:28:55 2023 -0500
[man]: Deprecate `SB` macro.
It is a SunOS 4.0 (1988) extension that in most contexts, does nothing
you can't achieve with `SM` and `B` together (in either order).
Study of the SunOS 4 man page corpus suggests a reason for its
introduction of this macro: use of `SB` immediately after `TP` was
common (610 out of 2,111 occurrences). The problem with `TP` and the
mechanism suggested above is that input traps in troff normally ignore
the `\c` escape sequence, the use of which would be necessary to get the
desired effect. In groff since 1.22.4, the man(7) `TP` macro uses GNU
troff's `itc` request, which _does_ respect `\c`. (mandoc(1) behaves
compatibly with groff man >= 1.22.4.) Solaris 11 switched to groff as
its troff implementation, so there is no reason for newly written or
currently maintained man pages to employ `SB`.
* tmac/an.tmac (SB): Throw deprecation warning.
* tmac/groff_man.7.man.in (Description): Move macro from table to
deprecation list.
(Font style macros): Move description from here...
(Deprecated features): ...to here.
(Portability): Drop mention, since we don't encourage people to
use it at all.
Fixes <https://savannah.gnu.org/bugs/?64515>.
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