At 2024-03-18T13:00:19-0500, G. Branden Robinson wrote: > At 2024-03-18T12:56:45-0500, G. Branden Robinson wrote: > > It is not a goal of groff to behave identically to mandoc(1) in the > > face of unspecified input. Is your input specified somewhere? (I > > don't have the command of mdoc(7) that I do of man(7), and as we've > > seen, my grasp of the latter is not flawless.) Can you come up with > > input that _is_ specified and yet still manifests this behavior? > > > > And, yeah, I noticed the oblique face getting stuck on, too, when I > > scrolled to the end of the document. > > ...at the same time, this bad rendering doesn't happen with groff > 1.22.4 or groff 1.23.0, so I might have inadvertently made groff > mdoc(7) less robust here. I'll bisect and see what I can see.
I was afraid of this.
df1fc139af57e947f038c52b3753dda411c3fc2e is the first bad commit
commit df1fc139af57e947f038c52b3753dda411c3fc2e
Author: G. Branden Robinson <g.branden.robin...@gmail.com>
Date: Sun Sep 3 20:58:42 2023 -0500
tmac/doc.tmac: Don't set `Ar` ellipsis in italics.
* tmac/doc.tmac (doc-str-Ar-default, Ar): Stop setting ellipsis in
italics.
* tmac/groff_mdoc.7.man (Arguments): De-document apology for former
behavior.
ChangeLog | 7 +++++++
tmac/doc.tmac | 4 ++--
tmac/groff_mdoc.7.man | 11 -----------
3 files changed, 9 insertions(+), 13 deletions(-)
The wonderful thing about mdoc having its own macro processing system is
that it's so fragile.
diff --git a/tmac/doc.tmac b/tmac/doc.tmac
index 52ed73714..8bbcca8a7 100644
--- a/tmac/doc.tmac
+++ b/tmac/doc.tmac
@@ -789,7 +789,7 @@
.\" NS
.\" NS width register 'Ar' set in doc-common
.
-.ds doc-str-Ar-default "file\ .\|.\|.
+.ds doc-str-Ar-default file \f[].\|.\|.\"
.
.eo
.de Ar
@@ -802,7 +802,7 @@
.
. \" no argument
. if !\n[.$] \
-. nop \)\*[doc-str-Ar-default]\&\f[]
+. nop \)\*[doc-str-Ar-default]\&
. \}
.
. if !\n[doc-arg-count] \
Back to the drawing board.
Regards,
Branden
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