This material can serve as a lean reference source for the elements in the dtds. They provide the nesting structure and content models for the dtds.

• DocBook DTDs
  • SGML
    • DocBook SGML V4.1
  • XML
    • DocBook XML DTD V4.1.2
    • Simplified DocBook XML V4.1.2.4
    • Simplified DocBook XML V4.1.2.4 - RefEntry
    • DocBook XML JRefEntry V1.0
    • DocBook XML WebSite V1.8
    • DocBook XML Slides V1.1
• HTML and XHTML
  • HTML
    • HTML 3.2 Final
    • HTML 4.01 Transitional
    • HTML 4.01 Strict
  • XHTML
    • XHTML Basic 1.0
    • Extensible HTML version 1.0 Transitional
    • Extensible HTML version 1.0 Strict
    • XHTML 1.1
• W3C-XSL (Unofficial: for editing XSL stylesheets)
  • XSLT - no result elements
  • XSLT - HTML 4.0 Strict result elements
  • XSL-FO
• Open Source Metadata Framework V1.1
• XBEL: XML Bookmark Exchange Language
• W3C XML Schema V1.0

The pages were generated using a customized version of dtdparse, a perl package distributed by DocBook maintainer Norm Walsh.

These tools and most of the DTDs here are available at Norm's site:

http://nwalsh.com