<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE chapter
  PUBLIC "-//Norman Walsh//DTD DocBk XML V3.1.7//EN"
  "../dtd/3.1.7/docbookx.dtd">
<chapter id="ch1">
<title>test</title>

<para>
This is a <function>foo<parameter>x</parameter><parameter>y</parameter></function>. This is just a <parameter>x</parameter>.
</para>

<para>
This is a <function>bar<parameter>x</parameter><function>y<parameter>z</parameter></function></function>. This is just a <parameter>x</parameter>.
</para>

<para>
This is a <function>bar<parameter>x</parameter><replaceable>z</replaceable></function>. This is just a <parameter>x</parameter>.
</para>

<para>
This is a just a function <function>bar</function>.
</para>

</chapter>
