# Markdown post processor
#
# A Markdown AST visitor called after parsing from a MdParser
abstract class MdPostProcessor
	super MdVisitor

	# Document behing processed
	#
	# Availlable only during a call to `post_process`.
	var document: nullable MdDocument = null

	# Post process the `document` parsed by `parser`
	fun post_process(parser: MdParser, document: MdDocument) do
		self.document = document
		enter_visit(document)
		self.document = null
	end

	# Call `MdNode::post_process`
	redef fun visit(node) do node.post_process(self)
end