From The Free On-line Dictionary of Computing (19 Sep 2003) [foldoc]:
FunnelWeb
A literate-programming tool by Ross Williams
<ross@spam.adelaide.edu.au>. It emphasises simplicity and
reliability. It provides a macro facility and assists in
the production of typeset documentation. It is independent
of the input programming language.
Posted to comp.sources.unix volume 26 under CopyLeft. Runs
on Sun, Vax, Macintosh and IBM PC.
(1993-04-11)