XML.ProcessingInstruction
A processing instruction that is encountered outside the document type declaration is represented by a syntax element with field type XML.ProcessingInstruction.
This is a name-value element; the name of the syntax element is
the processing instruction target name, and the value of the syntax
element is the character data of the processing instruction. The value
of the syntax element must not be empty. The name cannot be XML in
either uppercase or lowercase.
If the value of the element contains the character sequence
?>,
the sequence is replaced with the text ?>.
This ensures that the content of the processing instruction cannot
prematurely terminate the processing instruction. Occurrences of the
following characters are not translated to their escape sequences:< > & " ' The following shows an example of the XML processing instruction in an XML document:
<example><?target This is a PI.?></example>