ydSLitProg is an SGML DTD intended to write literate programs. It is only a prototype for now, and comes with an sgmlspl spec file which converts an ydSLitProg file into a CWEB file. A converter from ydSLitProg to FWEB is being written as well.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.