Introduction to DocBook-4.5 XML DTD
        
        
          The DocBook-4.5 XML DTD-4.5
          package contains document type definitions for verification of XML
          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 12.4
          platform.
        
        
          Package Information
        
        
        
          DocBook-4.5 XML DTD Dependencies
        
        
          Required
        
        
          libarchive-3.8.1 and libxml2-2.14.5
        
       
      
        
          Installation of DocBook-4.5 XML DTD
        
        
          ![[Note]](../images/note.png) 
          
            Note
          
          
            The package source is distributed in zip format and requires unzip (actually a symlink to
            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 XML DTD by running
          the following commands as the root
          user:
        
        install -v -d -m755 /usr/share/xml/docbook/xml-dtd-4.5         &&
install -v -d -m755 /etc/xml                                   &&
cp -v -af --no-preserve=ownership docbook.cat *.dtd ent/ *.mod \
    /usr/share/xml/docbook/xml-dtd-4.5
        
          Create (or update) and populate the /etc/xml/docbook catalog file by running the
          following commands as the root
          user:
        
        if [ ! -e /etc/xml/docbook ]; then
    xmlcatalog --noout --create /etc/xml/docbook
fi &&
xmlcatalog --noout --add "public"                            \
    "-//OASIS//DTD DocBook XML V4.5//EN"                     \
    "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" \
    /etc/xml/docbook &&
xmlcatalog --noout --add "public"                            \
    "-//OASIS//DTD DocBook XML CALS Table Model V4.5//EN"    \
    "file:///usr/share/xml/docbook/xml-dtd-4.5/calstblx.dtd" \
    /etc/xml/docbook &&
xmlcatalog --noout --add "public"                            \
    "-//OASIS//DTD XML Exchange Table Model 19990315//EN"    \
    "file:///usr/share/xml/docbook/xml-dtd-4.5/soextblx.dtd" \
    /etc/xml/docbook &&
xmlcatalog --noout --add "public"                              \
    "-//OASIS//ELEMENTS DocBook XML Information Pool V4.5//EN" \
    "file:///usr/share/xml/docbook/xml-dtd-4.5/dbpoolx.mod"    \
    /etc/xml/docbook &&
xmlcatalog --noout --add "public"                                \
    "-//OASIS//ELEMENTS DocBook XML Document Hierarchy V4.5//EN" \
    "file:///usr/share/xml/docbook/xml-dtd-4.5/dbhierx.mod"      \
    /etc/xml/docbook &&
xmlcatalog --noout --add "public"                            \
    "-//OASIS//ELEMENTS DocBook XML HTML Tables V4.5//EN"    \
    "file:///usr/share/xml/docbook/xml-dtd-4.5/htmltblx.mod" \
    /etc/xml/docbook &&
xmlcatalog --noout --add "public"                           \
    "-//OASIS//ENTITIES DocBook XML Notations V4.5//EN"     \
    "file:///usr/share/xml/docbook/xml-dtd-4.5/dbnotnx.mod" \
    /etc/xml/docbook &&
xmlcatalog --noout --add "public"                                \
    "-//OASIS//ENTITIES DocBook XML Character Entities V4.5//EN" \
    "file:///usr/share/xml/docbook/xml-dtd-4.5/dbcentx.mod"      \
    /etc/xml/docbook &&
xmlcatalog --noout --add "public"                                         \
    "-//OASIS//ENTITIES DocBook XML Additional General Entities V4.5//EN" \
    "file:///usr/share/xml/docbook/xml-dtd-4.5/dbgenent.mod"              \
    /etc/xml/docbook &&
xmlcatalog --noout --add "rewriteSystem"        \
    "http://www.oasis-open.org/docbook/xml/4.5" \
    "file:///usr/share/xml/docbook/xml-dtd-4.5" \
    /etc/xml/docbook &&
xmlcatalog --noout --add "rewriteURI"           \
    "http://www.oasis-open.org/docbook/xml/4.5" \
    "file:///usr/share/xml/docbook/xml-dtd-4.5" \
    /etc/xml/docbook
        
          Create (or update) and populate the /etc/xml/catalog catalog file by running the
          following commands as the root
          user:
        
        if [ ! -e /etc/xml/catalog ]; then
    xmlcatalog --noout --create /etc/xml/catalog
fi &&
xmlcatalog --noout --add "delegatePublic" \
    "-//OASIS//ENTITIES DocBook XML"      \
    "file:///etc/xml/docbook"             \
    /etc/xml/catalog                      &&
xmlcatalog --noout --add "delegatePublic" \
    "-//OASIS//DTD DocBook XML"           \
    "file:///etc/xml/docbook"             \
    /etc/xml/catalog                      &&
xmlcatalog --noout --add "delegateSystem" \
    "http://www.oasis-open.org/docbook/"  \
    "file:///etc/xml/docbook"             \
    /etc/xml/catalog                      &&
xmlcatalog --noout --add "delegateURI"    \
    "http://www.oasis-open.org/docbook/"  \
    "file:///etc/xml/docbook"             \
    /etc/xml/catalog
       
      
        
          Configuring DocBook-4.5 XML DTD
        
        
          
            Config Files
          
          
            /etc/xml/catalog and /etc/xml/docbook
          
         
        
          
            Configuration Information
          
          
            ![[Caution]](../images/caution.png) 
            
              Caution
            
            
              Various BLFS packages request DocBook
              XML DTD version 4.x before V4.5, so the following step
              must be done for those packages to be built successfully.
            
           
          
            The above installation creates the files and updates the
            catalogs. In order to utilize DocBook
            XML DTD V4.5 when any version 4.x is requested in the
            System Identifier, you need to add additional statements to the
            catalog files. If you have any of the DocBook XML DTD's referenced below already
            installed on your system, remove those entries from the
            for command below
            (issue the commands as the root
            user):
          
          for DTDVERSION in 4.1.2 4.2 4.3 4.4
do
  xmlcatalog --noout --add "public"                                  \
    "-//OASIS//DTD DocBook XML V$DTDVERSION//EN"                     \
    "http://www.oasis-open.org/docbook/xml/$DTDVERSION/docbookx.dtd" \
    /etc/xml/docbook
  xmlcatalog --noout --add "rewriteSystem"              \
    "http://www.oasis-open.org/docbook/xml/$DTDVERSION" \
    "file:///usr/share/xml/docbook/xml-dtd-4.5"         \
    /etc/xml/docbook
  
  xmlcatalog --noout --add "rewriteURI"                 \
    "http://www.oasis-open.org/docbook/xml/$DTDVERSION" \
    "file:///usr/share/xml/docbook/xml-dtd-4.5"         \
    /etc/xml/docbook
  
  xmlcatalog --noout --add "delegateSystem"              \
    "http://www.oasis-open.org/docbook/xml/$DTDVERSION/" \
    "file:///etc/xml/docbook"                            \
    /etc/xml/catalog
  
  xmlcatalog --noout --add "delegateURI"                 \
    "http://www.oasis-open.org/docbook/xml/$DTDVERSION/" \
    "file:///etc/xml/docbook"                            \
    /etc/xml/catalog
done