#data
<p>
<?hoge?>
</p>
#errors
/p;unknown namespace element;u
/p/?hoge;unknown pi;u

#data
<p>
<?xmlx?>
</p>
#errors
/p;unknown namespace element;u
/p/?xmlx;unknown pi;u

#data
<p>
<?xml-?>
</p>
#errors
/p;unknown namespace element;u
/p/?xml-;pi not defined;m

#data
<p>
<?XML-24?>
</p>
#errors
/p;unknown namespace element;u
/p/?XML-24;pi not defined;m