URL: <https://savannah.gnu.org/bugs/?68059>
Summary: [mm] ML list item vertical space not suppressed when
third ML argument is given
Group: GNU roff
Submitter: afh
Submitted: Tue 17 Feb 2026 08:28:01 PM UTC
Category: Macro package mm
Severity: 3 - Normal
Item Group: Rendering/Cosmetics
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Unlocked
Planned Release: None
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Follow-up Comments:
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Date: Tue 17 Feb 2026 08:28:01 PM UTC By: Alexis <afh>
According to groff_mm(7) the ML macro supports a third argument with which the
vertical space before included list items can be suppressed.
While this works as expected in groff 1.23.0:
groff -Tutf8 -P-cbou -mm mwe-ml-svs.mm | cat -s
This is an mm document with nested ML marked lists using
vertical space suppression.
Saturday
□ Morning
□ Noon
□ Evening
Sunday
□ Morning
□ Noon
□ Evening
the output of the same document produced with groff 1.24.0-rc3 differs in
the following:
* the pre-item space is still present
* the list items are not indented
groff -Tutf8 -P-cbou -mm mwe-ml-svs.mm | cat -s
This is an mm document with nested ML marked lists using
vertical space suppression.
Saturday
□ Morning
□ Noon
□ Evening
Sunday
□ Morning
□ Noon
□ Evening
Possibly I misunderstand documentation, yet I'd expect that passing 0 as a
third argument to ML would omit the vertical space suppression, which does not
seem to be the case for neither groff 1.23.0 nor groff 1.24.0-rc3. I'm
mentioning this here as it is somewhat related, if I misread the docs or a
separate bug report is preferred, please let me know.
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