Tracked Changes XML Markup

Depending on the type of edits, the following track changes markup appears in the document source code when you activate the Track Changes feature:

Edit Type	Processing Instruction Start Marker	Processing Instruction End Marker	Attributes
Insertion	<?oxy_insert_start?>	<?oxy_insert_end?>	author, timestamp
Split	<?oxy_insert_start?>	<?oxy_insert_end?>	author, timestamp, type="split"
Surround	<?oxy_insert_start?>	<?oxy_insert_end?>	author, timestamp, type="surround"
Deletion	<?oxy_delete?>	_	author, timestamp, content
Comment	<?oxy_comment_start?>	<?oxy_comment_end?>	author, timestamp, comment, mid
Attribute Change	<?oxy_attributes?>	_	id, type, oldValue, author, timestamp

If a comment intersects another, the mid attribute is used to correctly identify start and end processing instruction markers.