Extract string value from `MDLine`.

Property definitions

	# Extract string value from `MDLine`.
	protected fun extract_value(line: MDLine): String is abstract

lib/markdown/markdown.nit:1929,2--1930,62

	redef fun extract_value(line) do
		return line.value.substring_from(line.value.index_of('.') + 2)
	end

lib/markdown/markdown.nit:1939,2--1941,4

	redef fun extract_value(line) do
		return line.value.substring_from(line.leading + 2)
	end

lib/markdown/markdown.nit:1950,2--1952,4