# Register a delimiter processor
	private fun add_delimiter_processor(delimiter_processor: MdDelimiterProcessor, map: Map[Char, MdDelimiterProcessor]) do
		var opening = delimiter_processor.opening_delimiter
		var closing = delimiter_processor.closing_delimiter
		if opening == closing then
			if map.has_key(opening) then
				var old = map[opening]
				if old.opening_delimiter == old.closing_delimiter then
					var s: MdStaggeredDelimiterProcessor
					if old isa MdStaggeredDelimiterProcessor then
						s = old
					else
						s = new MdStaggeredDelimiterProcessor(opening)
						s.add old
					end
					s.add delimiter_processor
					map[opening] = s
				else
					add_delimiter_processor_for_char(opening, delimiter_processor, map)
				end
			else
				add_delimiter_processor_for_char(opening, delimiter_processor, map)
			end
		else
			add_delimiter_processor_for_char(opening, delimiter_processor, map)
			add_delimiter_processor_for_char(closing, delimiter_processor, map)
		end
	end