DocBook (
http://www.oasis-open.org/docbook/
) is an agreed upon
SGML/
XML DTD used for writing books and papers about computer hardware and software.
The home of
DocBook: The Definitive Guide http://www.docbook.org/
Have a look at the wiki as well:
http://wiki.docbook.org/topic
See also
http://freshmeat.net/projects/docbook2x/
for a tool to convert DocBook formatted files into Texinfo or man page formatted files.
The docbook sf-project includes xslt and dsssl stylesheets. Normally that would be towards pdf, html, xml, rtf, but I would think tex as well, texinfo I'm not sure about. VL 16/6-03.Online DocBook Validator and XML -> HTML/PDF Transformer:
http://validate.sf.net
A bit old but impressive list of tools about Docbook:
http://www.dpawson.co.uk/docbook/tools.html
includes many pointers to SourceForge-hosted projects (db2latex, etc.).
CM 17/6/03.
I wonder if
http://freshmeat.net/projects/remark/
might help convert some docs into this format...