Introduction to DocBook-4.5 SGML DTD

The DocBook-4.5 SGML DTD package contains document type definitions for verification of SGML data files against the DocBook rule set. These are useful for structuring books and software documentation to a standard allowing you to utilize transformations already written for that standard.

This package is known to build and work properly using an LFS 12.1 platform.

Package Information

DocBook-4.5 SGML DTD Dependencies


sgml-common-0.6.3 and UnZip-6.0 (or libarchive-3.7.2)

Installation of DocBook-4.5 SGML DTD



The package source is distributed in zip format and requires unzip (or bsdunzip from libarchive). You should create a directory and change to that directory before unzipping the file to ease the removal of the source files after the package has been installed.

Install DocBook-4.5 SGML DTD by running the following commands:

sed -i -e '/ISO 8879/d' \
       -e '/gml/d'

This package does not come with a test suite.

Now, as the root user:

install -v -d /usr/share/sgml/docbook/sgml-dtd-4.5 &&
chown -R root:root . &&

install -v /usr/share/sgml/docbook/sgml-dtd-4.5/catalog &&
cp -v -af *.dtd *.mod *.dcl /usr/share/sgml/docbook/sgml-dtd-4.5 &&

install-catalog --add /etc/sgml/ \
    /usr/share/sgml/docbook/sgml-dtd-4.5/catalog &&

install-catalog --add /etc/sgml/ \

Command Explanations

sed -i -e '/ISO 8879/d' -e '/gml/d' This command removes the ENT definitions from the catalog file.

Configuring DocBook-4.5 SGML DTD

Config Files


Configuration Information

The above installation script updates the catalog.

Using only the most current 4.x version of DocBook SGML DTD requires the following (perform as the root user):

cat >> /usr/share/sgml/docbook/sgml-dtd-4.5/catalog << "EOF"
  -- Begin Single Major Version catalog changes --

PUBLIC "-//OASIS//DTD DocBook V4.4//EN" "docbook.dtd"
PUBLIC "-//OASIS//DTD DocBook V4.3//EN" "docbook.dtd"
PUBLIC "-//OASIS//DTD DocBook V4.2//EN" "docbook.dtd"
PUBLIC "-//OASIS//DTD DocBook V4.1//EN" "docbook.dtd"
PUBLIC "-//OASIS//DTD DocBook V4.0//EN" "docbook.dtd"

  -- End Single Major Version catalog changes --


Installed Programs: None
Installed Libraries: None
Installed Files: SGML DTD and MOD files
Installed Directory: /usr/share/sgml/docbook/sgml-dtd-4.5

Short Descriptions

SGML DTD files

contains a document type definition which defines the element types and the attribute lists that can be used in the corresponding SGML files

SGML MOD files

contains components of the document type definition that are sourced into the DTD files