<grammar xmlns="http://relaxng.org/ns/structure/1.0" xmlns:z="http://www.daisy.org/ns/z3998/annotations/#" xmlns:a="http://relaxng.org/ns/compatibility/annotations/1.0" xmlns:sch="http://purl.oclc.org/dsdl/schematron" xmlns:db="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" ns="http://www.daisy.org/ns/z3998/authoring/">
<info xmlns="http://docbook.org/ns/docbook" xml:lang="en">
<title>The headings module </title>
<annotation annotates="/">
<para>This module defines the h , hd and hpart elements for representing headings and heading segments. </para>
<para>More information about this module is available at http://www.daisy.org/z3998/2012/auth/cm/#z3998.headings.module</para>
</annotation>
<author>
<personname>Markus Gylling</personname>
<email>mgylling@daisy.org</email>
</author>
<copyright>
<year>2009</year>
<year>2010</year>
<year>2011</year>
<year>2012</year>
<holder>DAISY Consortium</holder>
</copyright>
<legalnotice>
<para>This module is licensed under a Creative Commons Attribution 3.0 license, a copy of which is available at
<link xlink:href="http://creativecommons.org/licenses/by/3.0/">http://creativecommons.org/licenses/by/3.0/</link>
</para>
<para>For complete licensing information, please refer to the LICENSE file that came with this distribution, a copy of which is also available from the DAISY web site at
<link xlink:href="http://www.daisy.org">www.daisy.org</link>
</para>
</legalnotice>
<revhistory>
<revision>
<date>2012-12-19</date>
<authorinitials>MGy</authorinitials>
<revdescription>
<para>Initial version</para>
</revdescription>
</revision>
</revhistory>
</info>
<div>
<define name="z3998.h">
<element name="h">
<a:documentation>The h element represents a structural heading. The h element is strongly associated with the section element and its specializations. Each section typically allows zero or one h element child. </a:documentation>
<ref name="z3998.h.attlist"/>
<ref name="z3998.h.content"/>
<sch:rule context="default:h">
<sch:assert test="normalize-space(.) or *">The h element must neither be empty nor contain only whitespace. </sch:assert>
</sch:rule>
</element>
</define>
<define name="z3998.h.attlist">
<ref name="z3998.Block.attrib"/>
</define>
<define name="z3998.h.content">
<oneOrMore>
<choice>
<ref name="z3998.Phrase.core.Text.mix.model"/>
<ref name="z3998.hpart"/>
</choice>
</oneOrMore>
</define>
</div>
<div>
<define name="z3998.hpart">
<element name="hpart">
<a:documentation>The hpart element represents a segment of a structural heading. The hpart element is typically used to separate numeric identifiers from headings or to separate segments of headings broken onto separate lines. </a:documentation>
<ref name="z3998.hpart.attlist"/>
<ref name="z3998.hpart.content"/>
<sch:rule context="default:hpart">
<sch:assert test="normalize-space(.) or *">The hpart element must neither be empty nor contain only whitespace. </sch:assert>
</sch:rule>
</element>
</define>
<define name="z3998.hpart.attlist">
<ref name="z3998.Phrase.attrib"/>
</define>
<define name="z3998.hpart.content">
<ref name="z3998.Phrase.core.Text.mix.model"/>
</define>
</div>
<div>
<define name="z3998.hd">
<element name="hd">
<a:documentation>The hd element represents a free-floating heading that is not associated with the hierarchical structure of the document. The ref attribute may be used to associate an hd element with a construct that it acts as a heading for. </a:documentation>
<ref name="z3998.hd.attlist"/>
<ref name="z3998.hd.content"/>
<sch:rule context="default:hd">
<sch:assert test="normalize-space(.) or *">The hd element must neither be empty nor contain only whitespace. </sch:assert>
</sch:rule>
</element>
</define>
<define name="z3998.hd.attlist" combine="interleave">
<ref name="z3998.Block.attrib"/>
<optional>
<ref name="z3998.ref.attrib"/>
</optional>
</define>
<define name="z3998.hd.content" combine="choice">
<ref name="z3998.Phrase.core.Text.mix.model"/>
</define>
<div>
<a:documentation>hd - default content model contribution </a:documentation>
<define name="z3998.Block.core.class" combine="choice">
<ref name="z3998.hd"/>
</define>
<define name="z3998.Block.basic.model" combine="choice">
<ref name="z3998.hd"/>
</define>
</div>
</div>
</grammar>