<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="linenumbering.extension"> <refmeta> <refentrytitle>linenumbering.extension</refentrytitle> <refmiscinfo class="other" otherclass="datatype">boolean</refmiscinfo> </refmeta> <refnamediv> <refname>linenumbering.extension</refname> <refpurpose>Enable the line numbering extension</refpurpose> </refnamediv> <refsynopsisdiv> <src:fragment xml:id="linenumbering.extension.frag"> <xsl:param name="linenumbering.extension" select="1"/> </src:fragment> </refsynopsisdiv> <refsection><info><title>Description</title></info> <para>If non-zero, verbatim environments (<tag>address</tag>, <tag>literallayout</tag>, <tag>programlisting</tag>, <tag>screen</tag>, <tag>synopsis</tag>) that specify line numbering will have line numbers. </para> </refsection> </refentry>