DocBook lives when each an SGML and an XML DTD. It originally began as an SGML application, however an tantamount XML application was developed & has okay, replaced a SGML 1 for virtually all utilizes. (A XML DTD began using version Four of a SGML DTD & keeps the versioning from either there.)

It utilized to be that DocBook was mostly used in the open source community only. Examples of this include a Linux Documentation Project, the GNOME and GTK+ API references, and a Linux kernel documentation. Within recent years, notwithstanding, its utilize has be additional far flung. E.g., an increasing total of organizations apply a DocBook documentation technique for completely documentation, disregarding of whether the computer software is freed when open source. Likewise, many commercial documentation information according to, or even supporting, DocBook XML use at times get available.

Norman Walsh and the DocBook Open Repository development team maintain the placed of DSSSL and XSL stylesheets for generating HTML and print (FO/PDF) output (when well as more formats, including RTF, man pages and HTML Assist) from either DocBook documents. Walsh is likewise a chief creator of the book DocBook: A Definitive Resolution, a official documentation of DocBook. This book is available on a internet under the GFDL, and as well as a print publication.

Because Docbook is XML, documents may be created & edited using any text editor, but numerous dedicated information survive that simplify a run. Emacs constitutional nXML mode comes with built-in Docbook schema tools that allows users to quickly add elements or even validate a document. There are WYSIWYG information prefer XMLMind that allow that you to watch a Docbook document when writing.

Sample code

<book id="simple_book">
  <title>Super elementary book</title>
  <chapter id="simplechapter">
    <title>Chapter One</title>
    <para>How-do-you-do globe!</para>
  </chapter>
</book>