[bug #63299] [eqn] reports incorrect line numbers in diagnostics

[G. Branden Robinson]

URL:
  <https://savannah.gnu.org/bugs/?63299>

                 Summary: [eqn] reports incorrect line numbers in diagnostics
                 Project: GNU troff
               Submitter: gbranden
               Submitted: Mon 31 Oct 2022 11:58:20 PM UTC
                Category: Preprocessor eqn
                Severity: 3 - Normal
              Item Group: Warning/Suspicious behaviour
                  Status: In Progress
                 Privacy: Public
             Assigned to: gbranden
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Mon 31 Oct 2022 11:58:20 PM UTC By: G. Branden Robinson <gbranden>
See in groff 1.22.4.


$ echo .EQ | eqn >/dev/null
eqn:<standard input>:2: fatal error: end of file before .EN


...but there is no "line 2".


$ printf ".EQ\nx\n.EN\n.lf 99\n\200\n" | eqn >/dev/null
eqn:<standard input>:98: invalid input character code '128'


A line number of 98 (after it has been set to 99) is also obviously
incorrect.

Thanks to Alex Colomar for the report.







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