[bug #59179] man: cR and X registers used together lose the page number

[G. Branden Robinson]

URL:
  <https://savannah.gnu.org/bugs/?59179>

                 Summary: man: cR and X registers used together lose the page
number
                 Project: GNU troff
            Submitted by: gbranden
            Submitted on: Fri 25 Sep 2020 01:15:43 PM UTC
                Category: Macro - man
                Severity: 3 - Normal
              Item Group: Incorrect behaviour
                  Status: In Progress
                 Privacy: Public
             Assigned to: gbranden
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None

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Details:


printf '.TH foo 1\n' | groff -Tps -b -ww -z -rcR=1 -rX1 -man
/usr/share/groff/1.22.4/tmac/an-old.tmac:275: backtrace: macro 'BT'
/usr/share/groff/1.22.4/tmac/an-old.tmac:335: backtrace: macro 'an-p-footer'
/usr/share/groff/1.22.4/tmac/an-old.tmac:344: backtrace: trap-invoked macro
'an-end'
troff: warning: macro 'an-page-string' not defined


Judging by `git blame`, this problem dates back to 2007 or 2001.  At first I
thought _I_ broke it, but this now seems impossible. :P






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