PREUN

/bin/sh

if [ "$1" = "0" ] ; then
    /usr/bin/install-catalog --remove /etc/sgml/xml-docbook-4.2.cat /usr/share/sgml/docbook/xml-dtd-4.2/catalog > /dev/null
    /usr/bin/xmlcatalog --noout --del /usr/share/sgml/docbook/xml-dtd-4.2/catalog.xml /etc/xml/catalog
fi

POSTIN

/bin/sh

if ! grep -q /etc/sgml/xml-docbook-4.2.cat /etc/sgml/catalog ; then
    /usr/bin/install-catalog --add /etc/sgml/xml-docbook-4.2.cat /usr/share/sgml/docbook/xml-dtd-4.2/catalog > /dev/null
fi
if ! grep -q /usr/share/sgml/docbook/xml-dtd-4.2/catalog.xml /etc/xml/catalog ; then
    /usr/bin/xmlcatalog --noout --add nextCatalog "" /usr/share/sgml/docbook/xml-dtd-4.2/catalog.xml /etc/xml/catalog
fi