[bug #60530] [man] needs to remap C* fonts if output driver is dvi

[G. Branden Robinson]

URL:
  <https://savannah.gnu.org/bugs/?60530>

                 Summary: [man] needs to remap C* fonts if output driver is
dvi
                 Project: GNU troff
            Submitted by: gbranden
            Submitted on: Wed 05 May 2021 12:29:08 PM UTC
                Category: Macro - man
                Severity: 3 - Normal
              Item Group: Warning/Suspicious behaviour
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None

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Details:

The DVI output driver has its own universe of fonts.  Its equivalent of
Courier, "CW", exists but only has roman and italic styles.  No bold and no
bold-italics.  Unfortunate.


$ printf '.TH cr 1\n.EX\nfoo\n.EE\n' | groff -Tdvi -z -man -b -ww
/usr/share/groff/1.22.4/tmac/an-ext.tmac:188: backtrace: macro 'EX'
troff: <standard input>:2: warning: can't find font 'CR'


an-old.tmac should remap Courier fonts as follows to accommodate the EX macro
and users who request them with font escapes.

CR -> CW
CB -> CW
CI -> CWI
CBI -> CWI





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