[bug #64594] "warning: cannot select font 'C'"

[M Hickford]

URL:
  <https://savannah.gnu.org/bugs/?64594>

                 Summary: "warning: cannot select font 'C'"
                   Group: GNU roff
               Submitter: hickford
               Submitted: Thu 24 Aug 2023 09:58:29 PM UTC
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Thu 24 Aug 2023 09:58:29 PM UTC By: M Hickford <hickford>
Hi. The following man page:


.\" Automatically generated by Pandoc 3.1.6.1
.\"
.\" Define V font for inline verbatim, using C font in formats
.\" that render this, and otherwise B font.
.ie "\f[CB]x\f[]"x" \{\
. ftr V B
. ftr VI BI
. ftr VB B
. ftr VBI BI
.\}
.el \{\
. ftr V CR
. ftr VI CI
. ftr VB CB
. ftr VBI CBI
.\}
.TH "" "" "" "" ""
.hy
.PP
Paragraph with \f[V]inline code\f[R]
.IP
.nf
\f[C]
Code block line 1
Code block line 2
Code block line 3
\f[R]
.fi


Gives warnings with `man -l example.1 | grep warn`


troff:<standard input>:5: warning: cannot select font 'CB'
troff:<standard input>:23: warning: cannot select font 'C'


It's unclear to me whether this is an issue in groff or pandoc. I also
reported the issue to pandoc https://github.com/jgm/pandoc/issues/9020







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