Yves Cloutier <yves.clout...@gmail.com> writes: > Hello, > > I'm in search of any documentation that provides insight into the design > and implementation of a *roff. > > I know source code exists for a few implementations like Plan 9, Heirloom, > Groff and Neatroff. > > However what I'm in search of is something a bit more high-level than > source code. Rather some design/implementation documentation that explains > an *approach* to implementing a *roff. > > Would anyone know if anything like this exists?
I'd have a look at: Software Tools in Pascal by Brian W. Kernighan and P.J. Plauger I found it pretty interesting to see how the macro processor can be run before the low-level roff commands and how the very very basic roff was implemented. Many gems in the book - really like the getchar, putchar definition/implementation. However it is light years away from a complete groff though - but as a starting point it is great, regards, Gaius
