fonts in Transcript

[Stephen J. Hartley]

Yes, the troff manual talks about only four font positions, with Roman,
Italic, Bold, and Special traditionally mounted on them.  If you look at
the first edition of Kernighan and Ritchie's C book, you will notice that
they used troff to typeset their book (see the copyright page).  That book
uses the constant-width font throughout for program fragments.  Somehow
they were able to mount it with the .fp command or switch to it with the
\f mechanism.  Why doesn't it work with troff and Transcript on Sun's?