[bug #55799] -a output does not heed .char definitions

[Dave]

URL:
  <https://savannah.gnu.org/bugs/?55799>

                 Summary: -a output does not heed .char definitions
                 Project: GNU troff
            Submitted by: barx
            Submitted on: Thu 28 Feb 2019 04:31:55 PM CST
                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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Details:

When the .char request is used in groff 1.22.4, correct output is produced for
PostScript or TTY:

printf ".char a z\nplan\n" | nroff | grep pl.n
printf ".char a z\nplan\n" | groff | grep pl.n

But incorrect output is produced for ASCII approximation via -a:

printf ".char a z\nplan\n" | groff -a | grep pl.n




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