gbranden pushed a commit to branch master
in repository groff.
commit 651aa3d2f2b8762b1da3fe211f429b3196f480b3
Author: G. Branden Robinson <[email protected]>
AuthorDate: Mon Oct 5 02:07:33 2026 -0500
groff_mm(7): Clarify register configuration.
Thanks to Larry Kollar for raising this issue in the "UTP Revisited"
project.
ANNOUNCE: Acknowledge Larry.
---
ANNOUNCE | 1 +
contrib/mm/groff_mm.7.man | 18 ++++++++++++++++++
2 files changed, 19 insertions(+)
diff --git a/ANNOUNCE b/ANNOUNCE
index 634f123fd..203dcdaea 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -238,6 +238,7 @@ Jeff Conrad
Johannes Altmanninger
John Gardner
Karl Berry
+Larry Kollar
Luis Rivera
Martin Simmons
Morten Bo Johansen
diff --git a/contrib/mm/groff_mm.7.man b/contrib/mm/groff_mm.7.man
index 5601fc7a0..b85461c01 100644
--- a/contrib/mm/groff_mm.7.man
+++ b/contrib/mm/groff_mm.7.man
@@ -4713,6 +4713,24 @@ The default
.SH Registers
.\" ====================================================================
.
+Register names of one character in length generally
+.I must
+be configured from the command line,
+because they affect
+.IR mm 's
+initialization.
+.
+Those of greater length generally
+.I cannot
+be usefully configured at the command line;
+package initialization overrides their assignments.
+.
+Use
+.B nr
+requests at the beginning of input to configure the latter kind.
+.
+.
+.P
Default register values,
where meaningful,
are shown in parentheses.
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