[bug #59522] an-ext.tmac: can't find font 'CR' for a dvi-device

[Bjarni Ingi Gislason]

URL:
  <https://savannah.gnu.org/bugs/?59522>

                 Summary: an-ext.tmac: can't find font 'CR' for a dvi-device
                 Project: GNU troff
            Submitted by: bjarniig
            Submitted on: Mon 23 Nov 2020 09:41:30 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:

tmac/an-ext.tmac: can't find font 'CR' for a dvi-device

  Found with "test-groff -Tdvi -man groff_char.7.man".

  A simpler test is "groff -Tdvi -fC /dev/null"

  A font file 'CR' is not in the "font/devdvi" directory,
but 'CW' is.

  The macro 'EX' has these lines:
.verbatim+
.\" Start example.
.de EX
.  do ds mF \\n[.fam]
.  nr mE \\n(.f
.  nr sP \\n(PD \" Save paragraph distance.
.  nr PD 1v
.  nf
.  nh
.  do fam C
.  ft CW
..


  A simple work around fix is to create a link from 'CR' to 'CW' in the
directory "font/devdvi",
and add 'CR' to the ".gitignore" file.

  It looks like that the ".fam" request looks for an 'R' style font,
here 'CR', and does not find any.

  That does not affect the result of ".ft CW"; meaning "troff" outputs
for example:

x font 17 CW





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