Follow-up Comment #4, bug #62040 (project groff): This bug is not in groff 1.22.4. I exposed it at a considerable distance with the following commit.
commit 384b5b2b235a053d905304abfe24712afe90d441 (HEAD, refs/bisect/bad) Author: G. Branden Robinson <[email protected]> Date: Thu May 20 00:36:35 2021 +1000 tmac/an-old.tmac: Drop no-op .tl requests. * tmac/an-old.tmac (an-header, an-footer): Drop no-op .tl requests. [...] diff --git a/tmac/an-old.tmac b/tmac/an-old.tmac index 1747728a5..ed4769367 100644 --- a/tmac/an-old.tmac +++ b/tmac/an-old.tmac @@ -284,9 +284,7 @@ . ps \\n[PS]u . vs \\n[VS]u . lt \\n[LT]u -. ie \\n[an-is-output-html] \ -. tl '''' -. el \{\ +. if !\\n[an-is-output-html] \ . if !\\n[cR] \ . sp .5i . PT @@ -310,10 +308,7 @@ . ps \\n[PS]u . vs \\n[VS]u . lt \\n[LT]u -. ie \\n[an-is-output-html] \{\ -. tl '''' -. \} -. el \{\ +. if !\\n[an-is-output-html] \{\ . ie \\n[cR] \ . ds an-outer-footer-text "\\*[an-title](\\*[an-section])\" . el \{\ I say "exposed" rather than "caused" because a change to a macro package should not be able to make the output driver drop core. It seems reasonable to infer that a raw roff document could be constructed that would provoke the same behavior. With respect to _why_ this change exposed the bug, my surmise remains consistent with comment #1. I think the blank titles put nodes on the output, such that was no longer "nothing" where the output driver was expecting "something". _______________________________________________________ Reply to this item at: <https://savannah.gnu.org/bugs/?62040> _______________________________________________ Message sent via Savannah https://savannah.gnu.org/
