[bug #64131] [troff] read-only registers can be removed

[G. Branden Robinson]

URL:
  <https://savannah.gnu.org/bugs/?64131>

                 Summary: [troff] read-only registers can be removed
                   Group: GNU roff
               Submitter: gbranden
               Submitted: Mon 01 May 2023 12:14:24 PM UTC
                Category: Core
                Severity: 3 - Normal
              Item Group: Incorrect behaviour
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None


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Follow-up Comments:


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Date: Mon 01 May 2023 12:14:24 PM UTC By: G. Branden Robinson <gbranden>

.tm .u=\n[.u]
.u=1
.rr .u
.tm .u=\n[.u]
.u=troff: backtrace: file '<standard input>':2
troff:<standard input>:2: warning: register '.u' not defined


Seriously?

Is this AT&T troff compatible?







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