gbranden pushed a commit to branch master
in repository groff.
commit 03eeb2290ab98d33eec5015828b9ef3164d4c0a1
Author: G. Branden Robinson <[email protected]>
AuthorDate: Sun Nov 23 13:33:18 2025 -0600
groff_mm(7): Document difference from AT&T mm.
It's more of a GNU troff difference that the mm package exercises, but
worth documenting here for mm's traditional audience, which is (thought
to be) shier of employing formatter features directly than ms(7) users.
---
contrib/mm/groff_mm.7.man | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/contrib/mm/groff_mm.7.man b/contrib/mm/groff_mm.7.man
index 2d1a90721..d21e2f35b 100644
--- a/contrib/mm/groff_mm.7.man
+++ b/contrib/mm/groff_mm.7.man
@@ -301,6 +301,12 @@ and vertical ones in vees
(scaling unit
.BR v ).
.
+.I "groff mm"
+permits use of non-integral
+.I "typographer's points"
+(scaling unit
+.BR z ).
+.
Use explicit scaling units for clarity and predictable behavior.
.
.
@@ -3983,7 +3989,7 @@ the default
.
Further arguments configure the
.I type-size
-in scaled points
+in typographer's points
(on typesetting devices),
and the face
.RI ( font ).
@@ -4373,8 +4379,10 @@ assigns type sizes,
separated by spaces,
to heading levels in one-to-one correspondence.
.
-Each size is interpreted in scaled points;
-zero values are translated to
+.I "groff mm"
+interprets each size in typographer's points,
+translating
+zero values to
.BR 10 .
.
Omitted values are assumed to be\~0
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