<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="use.role.as.xrefstyle"> <refmeta> <refentrytitle>use.role.as.xrefstyle</refentrytitle> <refmiscinfo class="other" otherclass="datatype">boolean</refmiscinfo> </refmeta> <refnamediv> <refname>use.role.as.xrefstyle</refname> <refpurpose>Use <tag class="attribute">role</tag> attribute for <tag class="attribute">xrefstyle</tag> on <tag>xref</tag>?</refpurpose> </refnamediv> <refsynopsisdiv> <src:fragment xml:id="use.role.as.xrefstyle.frag"> <xsl:param name="use.role.as.xrefstyle" select="1"/> </src:fragment> </refsynopsisdiv> <refsection><info><title>Description</title></info> <para>In DocBook documents that conform to a schema older than V4.3, this parameter allows <tag class="attribute">role</tag> to serve the purpose of specifying the cross reference style.</para> <para>If non-zero, the <tag class="attribute">role</tag> attribute on <tag>xref</tag> will be used to select the cross reference style. In DocBook V4.3, the <tag class="attribute">xrefstyle</tag> attribute was added for this purpose. If the <tag class="attribute">xrefstyle</tag> attribute is present, <tag class="attribute">role</tag> will be ignored, regardless of the setting of this parameter.</para> </refsection> <refsection><info><title>Example</title></info> <para>The following small stylesheet shows how to configure the stylesheets to make use of the cross reference style:</para> <programlisting><?xml version="1.0"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"> <xsl:import href="../xsl/html/docbook.xsl"/> <xsl:output method="html"/> <xsl:param name="local.l10n.xml" select="document('')"/> <l:i18n xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0"> <l:l10n xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0" language="en"> <l:context name="xref"> <l:template name="chapter" style="title" text="Chapter %n, %t"/> <l:template name="chapter" text="Chapter %n"/> </l:context> </l:l10n> </l:i18n> </xsl:stylesheet></programlisting> <para>With this stylesheet, the cross references in the following document:</para> <programlisting><?xml version="1.0" encoding="utf-8"?> <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> <book id="book"><title>Book</title> <preface> <title>Preface</title> <para>Normal: <xref linkend="ch1"/>.</para> <para>Title: <xref xrefstyle="title" linkend="ch1"/>.</para> </preface> <chapter id="ch1"> <title>First Chapter</title> <para>Irrelevant.</para> </chapter> </book></programlisting> <para>will appear as:</para> <informalexample> <para>Normal: Chapter 1.</para> <para>Title: Chapter 1, <emphasis>First Chapter</emphasis>.</para> </informalexample> </refsection> </refentry>