DocBook is an XML vocabulary which enables you to create document content in a presentation-neutral form that captures the logical structure of the content. Using the DocBook Project XSL stylesheets, you can publish DocBook content as HTML pages and PDF files and other formats, including man pages, HTML Help, and JavaHelp.
Rundoc is an Ant task designed to help with the single- sourcing of program documentation. This task replaces special commands embedded within text files with their output in a specified format. Currently, only Docbook format is supported. It was written to keep sample code output in program documentation synchronized with the actual output of the current code, by running the referenced code when the documentation is built.
GXPARSE is not a new XML parser, but is an additional processing layer that makes it much easier to use event-based parsers like the SAX parser. It supports both direct sequential output and random access output (via the Resequencer interface). The random access mode delays output until all input has been processed, but makes it much easier to handle ID/IDREF attributes. GXPARSE maintains most advantages of the event-based parser. Application development and maintenance is considerably easier, but processing is a little slower.
deplate converts wiki-like markup to LaTeX (standard classes, koma, dramatist, sweave), HTML/PHP (single page, chunked/website, HTML, or s5-based slideshow), DocBook (article, book, man/ref page), and really plain text. Currently supported input formats are viki and Ruby's rdoc. The viki markup supports footnotes, citations, index, table of contents, embedded LaTeX for mathematics, integration with R for dynamically generated figures and tables, and more. Output can be customized via page templates.
html2db.xsl converts an XHTML source document into a Docbook output document. It provides features for customizing the generation of the output, so that the output can be tuned by annotating the source, rather than hand-editing the output. This makes it useful in a processing pipeline where the source documents are maintained in HTML, although it can be used as a one-time conversion tool too.
DocBook XSL Configurator is an umbrella project currently consisting of three similar Java Swing applications used to create DocBook XSL customization layers, run external subprocesses that format DocBook XML, and view the results. Users click through tables, select parameters, edit those parameters, include the customization layer in a project, write out the customization layer as an XSL file, and apply the XSL to the project's XML using the project's specified XSLT processor. DocBook XSL Configurator then runs a project's FO processor, PDF/PostScript viewer, HTML viewer, or man page viewer as an external subprocess.