# Add a `block_parser` block's as child of the active block parser block
	private fun add_child(block_parser: MdBlockParser) do
		# Finalize non-parentable blocks
		while not active_block_parser.block.can_contain(block_parser.block) do
			active_block_parser.finalize(self)
		end
		# Append block block parser block to its parent
		active_block_parser.block.append_child(block_parser.block)
		activate_block_parser(block_parser)
	end