промежуточный выходной формат GNU roff (GNU roff intermediate output format)
Файлы (Files)
/usr/local/share/groff/1.23.0/font/devname/DESC
Device description file for device name.
src/libs/libdriver/input.cpp
Defines the parser and postprocessor for the intermediate
output. It is located relative to the top directory of
the groff source tree. This parser is the definitive
specification of the groff intermediate output format.
