ditroff font files

InfoPrint installs other files for ditroff in the /usr/lib/font/devafp directory, including these:

devafp.fontmap
File that maps ditroff fonts to AFP fonts.
*.d2afp
Special versions of the ditroff font descriptions. The d2afp command uses these files.
DESC (no extension)
troff device description, ASCII version.
DESC.out
troff device description, binary version.
*.out
troff font descriptions, binary version.