> interesting preprocessors that are, alas, mostly lost: ideal, prefer, eqn.

> (If anybody has ideal, I'd love to get it. Even its author, Chris Van Wyk,

> doesn't have it.)

Is the source for ideal, command, manual and the document which

appears in the Tenth Edition Manual, all of which are in the
source that was recently released, not what you are after?

On Mon, Aug 28, 2017 at 1:04 PM, Doug McIlroy <doug@cs.dartmouth.edu> wrote:

> As a *roff fan, I'd love, love, love to see the original roff sources.
> Especially anything that uses pic/eqn/chem/etc.

I have the source for CSTR 155, a trilogy on raster ellipses. It uses
interesting preprocessors that are, alas, mostly lost: ideal, prefer, eqn.
(If anybody has ideal, I'd love to get it. Even its author, Chris Van Wyk,
doesn't have it.)

Doug