<?xml version="1.0" encoding="utf-8"?>
<s:schema xmlns:s="http://purl.oclc.org/dsdl/schematron"
          xmlns:db="http://docbook.org/ns/docbook">
   <s:ns prefix="db" uri="http://docbook.org/ns/docbook"/>
   <s:pattern>
      <s:title>Glossary 'firstterm' type constraint</s:title>
      <s:rule context="db:firstterm[@linkend]">
         <s:assert test="local-name(//*[@xml:id=current()/@linkend]) = 'glossentry' and namespace-uri(//*[@xml:id=current()/@linkend]) = 'http://docbook.org/ns/docbook'">@linkend on firstterm must point to a glossentry.</s:assert>
      </s:rule>
   </s:pattern>
   <s:pattern>
      <s:title>Footnote reference type constraint</s:title>
      <s:rule context="db:footnoteref">
         <s:assert test="local-name(//*[@xml:id=current()/@linkend]) = 'footnote' and namespace-uri(//*[@xml:id=current()/@linkend]) = 'http://docbook.org/ns/docbook'">@linkend on footnoteref must point to a footnote.</s:assert>
      </s:rule>
   </s:pattern>
   <s:pattern>
      <s:title>Glossary 'glossterm' type constraint</s:title>
      <s:rule context="db:glossterm[@linkend]">
         <s:assert test="local-name(//*[@xml:id=current()/@linkend]) = 'glossentry' and namespace-uri(//*[@xml:id=current()/@linkend]) = 'http://docbook.org/ns/docbook'">@linkend on glossterm must point to a glossentry.</s:assert>
      </s:rule>
   </s:pattern>
   <s:pattern>
      <s:title>Synopsis fragment type constraint</s:title>
      <s:rule context="db:synopfragmentref">
         <s:assert test="local-name(//*[@xml:id=current()/@linkend]) = 'synopfragment' and namespace-uri(//*[@xml:id=current()/@linkend]) = 'http://docbook.org/ns/docbook'">@linkend on synopfragmentref must point to a synopfragment.</s:assert>
      </s:rule>
   </s:pattern>
   <s:pattern>
      <s:title>Glosssary 'see' type constraint</s:title>
      <s:rule context="db:glosssee[@otherterm]">
         <s:assert test="local-name(//*[@xml:id=current()/@otherterm]) = 'glossentry' and namespace-uri(//*[@xml:id=current()/@otherterm]) = 'http://docbook.org/ns/docbook'">@otherterm on glosssee must point to a glossentry.</s:assert>
      </s:rule>
   </s:pattern>
   <s:pattern>
      <s:title>Glossary 'seealso' type constraint</s:title>
      <s:rule context="db:glossseealso[@otherterm]">
         <s:assert test="local-name(//*[@xml:id=current()/@otherterm]) = 'glossentry' and namespace-uri(//*[@xml:id=current()/@otherterm]) = 'http://docbook.org/ns/docbook'">@otherterm on glossseealso must point to a glossentry.</s:assert>
      </s:rule>
   </s:pattern>
   <s:pattern>
      <s:title>Glossary term definition constraint</s:title>
      <s:rule context="db:termdef">
         <s:assert test="count(db:firstterm) = 1">A termdef must contain exactly one firstterm</s:assert>
      </s:rule>
   </s:pattern>
   <s:pattern>
      <s:title>Cardinality of segments and titles</s:title>
      <s:rule context="db:seglistitem">
         <s:assert test="count(db:seg) = count(../db:segtitle)">The number of seg elements must be the same as the number of segtitle elements in the parent segmentedlist</s:assert>
      </s:rule>
   </s:pattern>
   <s:pattern>
      <s:title>Root must have version</s:title>
      <s:rule context="/db:para">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:set">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:book">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:dedication">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:acknowledgements">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:colophon">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:appendix">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:chapter">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:part">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:preface">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:section">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:article">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:sect1">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:sect2">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:sect3">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:sect4">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:sect5">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:reference">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:refentry">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:refsection">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:refsect1">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:refsect2">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:refsect3">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:glossary">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:bibliography">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:index">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:setindex">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
      <s:rule context="/db:toc">
         <s:assert test="@version">The root element must have a version attribute.</s:assert>
      </s:rule>
   </s:pattern>
   <s:pattern>
      <s:title>Element exclusion</s:title>
      <s:rule context="db:annotation">
         <s:assert test="not(.//db:annotation)">annotation must not occur in the descendants of annotation</s:assert>
      </s:rule>
      <s:rule context="db:caution">
         <s:assert test="not(.//db:caution)">caution must not occur in the descendants of caution</s:assert>
         <s:assert test="not(.//db:important)">important must not occur in the descendants of caution</s:assert>
         <s:assert test="not(.//db:note)">note must not occur in the descendants of caution</s:assert>
         <s:assert test="not(.//db:tip)">tip must not occur in the descendants of caution</s:assert>
         <s:assert test="not(.//db:warning)">warning must not occur in the descendants of caution</s:assert>
      </s:rule>
      <s:rule context="db:important">
         <s:assert test="not(.//db:caution)">caution must not occur in the descendants of important</s:assert>
         <s:assert test="not(.//db:important)">important must not occur in the descendants of important</s:assert>
         <s:assert test="not(.//db:note)">note must not occur in the descendants of important</s:assert>
         <s:assert test="not(.//db:tip)">tip must not occur in the descendants of important</s:assert>
         <s:assert test="not(.//db:warning)">warning must not occur in the descendants of important</s:assert>
      </s:rule>
      <s:rule context="db:note">
         <s:assert test="not(.//db:caution)">caution must not occur in the descendants of note</s:assert>
         <s:assert test="not(.//db:important)">important must not occur in the descendants of note</s:assert>
         <s:assert test="not(.//db:note)">note must not occur in the descendants of note</s:assert>
         <s:assert test="not(.//db:tip)">tip must not occur in the descendants of note</s:assert>
         <s:assert test="not(.//db:warning)">warning must not occur in the descendants of note</s:assert>
      </s:rule>
      <s:rule context="db:tip">
         <s:assert test="not(.//db:caution)">caution must not occur in the descendants of tip</s:assert>
         <s:assert test="not(.//db:important)">important must not occur in the descendants of tip</s:assert>
         <s:assert test="not(.//db:note)">note must not occur in the descendants of tip</s:assert>
         <s:assert test="not(.//db:tip)">tip must not occur in the descendants of tip</s:assert>
         <s:assert test="not(.//db:warning)">warning must not occur in the descendants of tip</s:assert>
      </s:rule>
      <s:rule context="db:warning">
         <s:assert test="not(.//db:caution)">caution must not occur in the descendants of warning</s:assert>
         <s:assert test="not(.//db:important)">important must not occur in the descendants of warning</s:assert>
         <s:assert test="not(.//db:note)">note must not occur in the descendants of warning</s:assert>
         <s:assert test="not(.//db:tip)">tip must not occur in the descendants of warning</s:assert>
         <s:assert test="not(.//db:warning)">warning must not occur in the descendants of warning</s:assert>
      </s:rule>
      <s:rule context="db:caption">
         <s:assert test="not(.//db:caution)">caution must not occur in the descendants of caption</s:assert>
         <s:assert test="not(.//db:equation)">equation must not occur in the descendants of caption</s:assert>
         <s:assert test="not(.//db:example)">example must not occur in the descendants of caption</s:assert>
         <s:assert test="not(.//db:figure)">figure must not occur in the descendants of caption</s:assert>
         <s:assert test="not(.//db:important)">important must not occur in the descendants of caption</s:assert>
         <s:assert test="not(.//db:note)">note must not occur in the descendants of caption</s:assert>
         <s:assert test="not(.//db:sidebar)">sidebar must not occur in the descendants of caption</s:assert>
         <s:assert test="not(.//db:table)">table must not occur in the descendants of caption</s:assert>
         <s:assert test="not(.//db:task)">task must not occur in the descendants of caption</s:assert>
         <s:assert test="not(.//db:tip)">tip must not occur in the descendants of caption</s:assert>
         <s:assert test="not(.//db:warning)">warning must not occur in the descendants of caption</s:assert>
      </s:rule>
      <s:rule context="db:equation">
         <s:assert test="not(.//db:caution)">caution must not occur in the descendants of equation</s:assert>
         <s:assert test="not(.//db:equation)">equation must not occur in the descendants of equation</s:assert>
         <s:assert test="not(.//db:example)">example must not occur in the descendants of equation</s:assert>
         <s:assert test="not(.//db:figure)">figure must not occur in the descendants of equation</s:assert>
         <s:assert test="not(.//db:important)">important must not occur in the descendants of equation</s:assert>
         <s:assert test="not(.//db:note)">note must not occur in the descendants of equation</s:assert>
         <s:assert test="not(.//db:table)">table must not occur in the descendants of equation</s:assert>
         <s:assert test="not(.//db:tip)">tip must not occur in the descendants of equation</s:assert>
         <s:assert test="not(.//db:warning)">warning must not occur in the descendants of equation</s:assert>
      </s:rule>
      <s:rule context="db:example">
         <s:assert test="not(.//db:caution)">caution must not occur in the descendants of example</s:assert>
         <s:assert test="not(.//db:equation)">equation must not occur in the descendants of example</s:assert>
         <s:assert test="not(.//db:example)">example must not occur in the descendants of example</s:assert>
         <s:assert test="not(.//db:figure)">figure must not occur in the descendants of example</s:assert>
         <s:assert test="not(.//db:important)">important must not occur in the descendants of example</s:assert>
         <s:assert test="not(.//db:note)">note must not occur in the descendants of example</s:assert>
         <s:assert test="not(.//db:table)">table must not occur in the descendants of example</s:assert>
         <s:assert test="not(.//db:tip)">tip must not occur in the descendants of example</s:assert>
         <s:assert test="not(.//db:warning)">warning must not occur in the descendants of example</s:assert>
      </s:rule>
      <s:rule context="db:figure">
         <s:assert test="not(.//db:caution)">caution must not occur in the descendants of figure</s:assert>
         <s:assert test="not(.//db:equation)">equation must not occur in the descendants of figure</s:assert>
         <s:assert test="not(.//db:example)">example must not occur in the descendants of figure</s:assert>
         <s:assert test="not(.//db:figure)">figure must not occur in the descendants of figure</s:assert>
         <s:assert test="not(.//db:important)">important must not occur in the descendants of figure</s:assert>
         <s:assert test="not(.//db:note)">note must not occur in the descendants of figure</s:assert>
         <s:assert test="not(.//db:table)">table must not occur in the descendants of figure</s:assert>
         <s:assert test="not(.//db:tip)">tip must not occur in the descendants of figure</s:assert>
         <s:assert test="not(.//db:warning)">warning must not occur in the descendants of figure</s:assert>
      </s:rule>
      <s:rule context="db:table">
         <s:assert test="not(.//db:caution)">caution must not occur in the descendants of table</s:assert>
         <s:assert test="not(.//db:equation)">equation must not occur in the descendants of table</s:assert>
         <s:assert test="not(.//db:example)">example must not occur in the descendants of table</s:assert>
         <s:assert test="not(.//db:figure)">figure must not occur in the descendants of table</s:assert>
         <s:assert test="not(.//db:important)">important must not occur in the descendants of table</s:assert>
         <s:assert test="not(.//db:informaltable)">informaltable must not occur in the descendants of table</s:assert>
         <s:assert test="not(.//db:note)">note must not occur in the descendants of table</s:assert>
         <s:assert test="not(.//db:tip)">tip must not occur in the descendants of table</s:assert>
         <s:assert test="not(.//db:warning)">warning must not occur in the descendants of table</s:assert>
      </s:rule>
      <s:rule context="db:footnote">
         <s:assert test="not(.//db:caution)">caution must not occur in the descendants of footnote</s:assert>
         <s:assert test="not(.//db:epigraph)">epigraph must not occur in the descendants of footnote</s:assert>
         <s:assert test="not(.//db:equation)">equation must not occur in the descendants of footnote</s:assert>
         <s:assert test="not(.//db:example)">example must not occur in the descendants of footnote</s:assert>
         <s:assert test="not(.//db:figure)">figure must not occur in the descendants of footnote</s:assert>
         <s:assert test="not(.//db:footnote)">footnote must not occur in the descendants of footnote</s:assert>
         <s:assert test="not(.//db:important)">important must not occur in the descendants of footnote</s:assert>
         <s:assert test="not(.//db:indexterm)">indexterm must not occur in the descendants of footnote</s:assert>
         <s:assert test="not(.//db:note)">note must not occur in the descendants of footnote</s:assert>
         <s:assert test="not(.//db:sidebar)">sidebar must not occur in the descendants of footnote</s:assert>
         <s:assert test="not(.//db:table)">table must not occur in the descendants of footnote</s:assert>
         <s:assert test="not(.//db:task)">task must not occur in the descendants of footnote</s:assert>
         <s:assert test="not(.//db:tip)">tip must not occur in the descendants of footnote</s:assert>
         <s:assert test="not(.//db:warning)">warning must not occur in the descendants of footnote</s:assert>
      </s:rule>
      <s:rule context="db:sidebar">
         <s:assert test="not(.//db:sidebar)">sidebar must not occur in the descendants of sidebar</s:assert>
      </s:rule>
   </s:pattern>
</s:schema>