visitProcessing method
Visit an XmlProcessing node.
Implementation
@override
void visitProcessing(XmlProcessing node) {
buffer.write(XmlToken.openProcessing);
buffer.write(node.target);
if (node.text.isNotEmpty) {
buffer.write(XmlToken.whitespace);
buffer.write(node.text);
}
buffer.write(XmlToken.closeProcessing);
}