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<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
-
- This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
- project.
-
- Copyright (C) 1998-2018 OpenLink Software
-
- This project is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; only version 2 of the License, dated June 1991.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-
-->
<refentry id="xpf_last">
<refmeta>
<refentrytitle>last</refentrytitle>
<refmiscinfo>XPATH</refmiscinfo>
</refmeta>
<refnamediv>
<refname>last</refname>
<refpurpose>Returns the context size from expression evaluation context.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="xpf_syn_last">
<funcprototype id="xpf_proto_last">
<funcdef>number <function>last</function></funcdef>
<void/>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="xpf_desc_last"><title>Description</title>
<para>
Context size is the number of nodes in the node-set where the context node comes from.
For the most popular case, when last() is used inside a predicate,
and the predicate relates to some axis of the path,
last() is the number of elements found by that axis at once;
in other words, the number of elements to be tested by predicate.
</para></refsect1>
<refsect1 id="xpf_ret_last"><title>Return Types</title><para>Positive integer.</para></refsect1>
<refsect1 id="xpf_examples_last"><title>Examples</title>
<example id="xpf_ex_last"><title>Call of last() inside a predicate</title>
<para>Find all waybills with more than one <address> child inside the <waybill> element.</para>
<screen>//waybill/address[last()>1]</screen>
</example>
</refsect1>
<refsect1 id="xpf_seealso_last"><title>See Also</title>
<para><link linkend="xpf_position">position()</link><link linkend="xpf_count">count()</link></para>
</refsect1>
</refentry>
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