lpw – A literate programming environment for Macs
The environment offers a WYSIWYG word processor based on style sheets, and a project management system (among other things).
Shareware: A fee is required
Maybe you are interested in the following packages as well.
- cwebbin: CWEB for ANSI-C/C++ compilers on UNIX/Linux, MS/Windows, and Amiga
- clip: A language-independent literate programming tool
- cnoweb: Simple "quality" printing of C sources
- knit: Tangle and weave with multiple change files