child::* selects all element children of the context node
<?xgrep-match [xgrep-test1.xml]--------------------------------?>
<para name="para1" type="zzz">
    something
	<div><para name="para1b"/></div>
  </para>
<?xgrep-match [xgrep-test1.xml]--------------------------------?>
<para name="para2" type="warning"/>
<?xgrep-match [xgrep-test1.xml]--------------------------------?>
<chapter>
    <para name="para3"/>
	<item name="item1"/>
  </chapter>
<?xgrep-match [xgrep-test1.xml]--------------------------------?>
<olist lang="olist-lang">
    <item name="item2"/>
  </olist>
<?xgrep-match [xgrep-test1.xml]--------------------------------?>
<para name="lastPara" type="warning"/>
<?xgrep-match [xgrep-test1.xml]--------------------------------?>
<doc>
    <chapter/>
	<chapter/>
	<chapter/>
	<chapter/>
	<chapter>
	  <section/>
	  <section>
	    Section2
	  </section>
	  <section/>
	</chapter>
	<chapter>
	  <title name="t1">Title</title>
	  <title name="t2">Introduction</title>
	  <title name="t3"/>
	</chapter>
	<chapter>
	  <title/>
	</chapter>
	<chapter/>

	<appendix/>
  
  </doc>
<?xgrep-match [xgrep-test1.xml]--------------------------------?>
<employee assistant="true" secretary="true1"/>
<?xgrep-match [xgrep-test1.xml]--------------------------------?>
<employee secretary="true2"/>
<?xgrep-match [xgrep-test1.xml]--------------------------------?>
<employee assistant="true" secretary="true3"/>
<?xgrep-match [xgrep-test1.xml]--------------------------------?>
<employee assistant="true4"/>
<?xgrep-match [xgrep-test1.xml]--------------------------------?>
<Cue>
    <Intensity>250</Intensity>
    <Intensity>150</Intensity>
    <Intensity>350</Intensity>
    <Intensity>266</Intensity>
  </Cue>