<refentry xmlns="http://docbook.org/ns/docbook"
          xmlns:xlink="http://www.w3.org/1999/xlink"
          xmlns:xi="http://www.w3.org/2001/XInclude"
          xmlns:src="http://nwalsh.com/xmlns/litprog/fragment"
          xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
          version="5.0" xml:id="generate.id.attributes">
<refmeta>
<refentrytitle>generate.id.attributes</refentrytitle>
<refmiscinfo class="other" otherclass="datatype">boolean</refmiscinfo>
</refmeta>
<refnamediv>
<refname>generate.id.attributes</refname>
<refpurpose>Generate ID attributes on container elements?</refpurpose>
</refnamediv>

<refsynopsisdiv>
<src:fragment xml:id="generate.id.attributes.frag">
<xsl:param name="generate.id.attributes" select="0"/>
</src:fragment>
</refsynopsisdiv>

<refsection><info><title>Description</title></info>

<para>If non-zero, the HTML stylesheet will generate ID attributes on
containers. For example, the markup:</para>

<screen>&lt;section id="foo"&gt;&lt;title&gt;Some Title&lt;/title&gt;
&lt;para&gt;Some para.&lt;/para&gt;
&lt;/section&gt;</screen>

<para>might produce:</para>

<screen>&lt;div class="section" id="foo"&gt;
&lt;h2&gt;Some Title&lt;/h2&gt;
&lt;p&gt;Some para.&lt;/p&gt;
&lt;/div&gt;</screen>

<para>The alternative is to generate anchors:</para>

<screen>&lt;div class="section"&gt;
&lt;h2&gt;&lt;a name="foo"&gt;&lt;/a&gt;Some Title&lt;/h2&gt;
&lt;p&gt;Some para.&lt;/p&gt;
&lt;/div&gt;</screen>

<para>Because the <tag class="attribute">name</tag> attribute of
the <tag>a</tag> element and the <tag class="attribute">id</tag>
attribute of other tags are both of type <quote>ID</quote>, producing both
generates invalid documents.</para>

<para>As of version 1.50, you can use this switch to control which type of
identifier is generated. For backwards-compatibility, generating
<tag>a</tag> anchors is preferred.</para>

<para>Note: at present, this switch is incompletely implemented.
Disabling ID attributes will suppress them, but enabling ID attributes
will not suppress the anchors.</para>

</refsection>
</refentry>
