<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="current.docid"> <refmeta> <refentrytitle>current.docid</refentrytitle> <refmiscinfo class="other" otherclass="datatype">string</refmiscinfo> </refmeta> <refnamediv> <refname>current.docid</refname> <refpurpose>targetdoc identifier for the document being processed</refpurpose> </refnamediv> <refsynopsisdiv> <src:fragment xml:id="current.docid.frag"> <xsl:param name="current.docid"/> </src:fragment> </refsynopsisdiv> <refsection><info><title>Description</title></info> <para>When olinks between documents are resolved for HTML output, the stylesheet can compute the relative path between the current document and the target document. The stylesheet needs to know the <literal>targetdoc</literal> identifiers for both documents, as they appear in the <parameter>target.database.document</parameter> database file. This parameter passes to the stylesheet the targetdoc identifier of the current document, since that identifier does not appear in the document itself. </para> <para>This parameter can also be used for print output. If an olink's <literal>targetdoc</literal> id differs from the <literal>current.docid</literal>, then the stylesheet can append the target document's title to the generated olink text. That identifies to the reader that the link is to a different document, not the current document. See also <parameter>olink.doctitle</parameter> to enable that feature.</para> </refsection> </refentry>