Re: [tmac] options "-mandoc" and '-C' are not compatible

[Bjarni Ingi Gislason]

On Sun, Jul 10, 2022 at 04:07:06AM -0500, G. Branden Robinson wrote:
> At 2022-07-10T02:04:10+0000, Bjarni Ingi Gislason wrote:
> >   A test case:
> > 
> > zcat /usr/share/man/man1/test.1.gz | test-nroff -mandoc -C -z
> > 
> >   produces a lot of warnings, while '-man' does not.
> > 
> 
> I can't reproduce this.
> 
>   $ ./build/test-groff -mandoc -C -Tutf8
>   .TH foo 1 2022-07-10 "bogus man\[-]page"
> <Control+D>
>   foo(1)                      General Commands Manual                     
> foo(1)
> 
>   bogus man-page                    2022???07???10                            
> foo(1)
> 
> I note that "test-nroff" is your own creation and that your running
> version of groff has signficant divergence from groff Git.
> 
>[...]

  Thanks for testing.

  I use stripped tmac files and "andoc.tmac" caused the bug in
compatibility mode.

  There is a comment in the file about

.\" Due to a bug in GNU troff it necessary to have a no-op line between
.\" '.do' and '\*'.             ^

   missing                      is


  The fix is to change the '.' line before the '\\*(...' lines to,
for example,

.do nop\" DO NOT REMOVE the line, see an earlier comment

N.B.

  The comment about the bug should also be in the general documentation.