URL: <https://savannah.gnu.org/bugs/?67575>
Summary: grotty spurious warning: unrecognized X command 'sgr
0' ignored
Group: GNU roff
Submitter: vinc17
Submitted: ven. 03 oct. 2025 13:30:50
Category: Driver grotty
Severity: 3 - Normal
Item Group: None
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: ven. 03 oct. 2025 13:30:50 By: Vincent Lefèvre <vinc17>
With groff 1.23.0 (groff-base 1.23.0-9 Debian package), I get the following
annoying warning:
cventin:~> echo '.TH' | groff -Tutf8 -mandoc
grotty:<standard input>:6: warning: unrecognized X command 'sgr 0' ignored
()
()
()
This was reported here:
https://lists.gnu.org/archive/html/groff/2023-07/msg00049.html
so more than 2 years ago. But apparently nothing was done.
According to strace, the following seems to be run:
cventin:~> echo '.TH' | troff -mandoc -Tutf8 | grotty
grotty:<standard input>:6: warning: unrecognized X command 'sgr 0' ignored
()
()
()
In the output of
echo '.TH' | troff -mandoc -Tutf8
there is "x X tty: sgr 0", and I suppose that this is what triggers the
warning in grotty.
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