[bug #64421] [mom] the word "black" spuriously appears in output

[G. Branden Robinson]

Follow-up Comment #13, bug #64421 (project groff):


[comment #12 comment #12:]
> I reinstalled the old package version from a separate terminal in between
running these.
> 
> -verbatim-
> gnoack:~/momrepro$ sh repro.sh > groff-1.22.4-10-d.pdf
> troff: <standard input>:5: can't transparently output node at top level
 
> Interesting is also that the invocation with the old groff version is
printing this warning, while the new groff version does not.

That is, I suspect, a red herring and an unrelated change.

https://git.savannah.gnu.org/cgit/groff.git/commit/?id=557bc0558dfdee7e3f2011433cf4606052e4e7e1

But I won't claim I'm certain until we've found the root cause of this one.

> I can also confirm that it works with the Postscript backend, when groff is
invoked with groff -mom -Tps. That file is also attached.
> 
> (file #54949, file #54950, file #54951)

To clarify, you're saying that the problem reproduces regardless of output
driver, and that the word "black" spuriously appears in PostScript output as
well as PDF.

I think it unlikely that output driver behavior is to blame here.  The
incorrect output is probably in _troff_(1) output, and the output drivers are
doing what they're told.  (You could also test _grodvi_ by saying `groff -mom
-Tdvi` and using _xdvi_(1) to view the output--assuming you have TeX
installed.

When able to reproduce with Arch groff 1.23.0-3, can you attach the output of


groff -mom -Tpdf -Z < foo.mom > foo.grout


please?




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