# Indented code blocks parser
class MdIndentedCodeBlockParser
	super MdBlockParser

	redef type BLOCK: MdIndentedCodeBlock
	redef var block = new MdIndentedCodeBlock(location, use_tabs) is lazy

	# Indent is tab?
	var use_tabs: Bool

	# Block content
	var content = new Buffer

	redef fun try_continue(state) do
		if state.indent >= 4 then
			return new MdBlockContinue.at_column(state.column + 4)
		else if state.is_blank then
			return new MdBlockContinue.at_index(state.next_non_space_index)
		end
		return null
	end

	redef fun add_line(line) do
		if not content.is_empty then
			content.add('\n')
		end
		content.append(line)
	end

	redef fun finalize(parser) do
		super

		add_line(" ")
		var content = self.content.to_s
		var literal = content.replace_first(re_trailing_blank_lines, "\n")
		block.literal = literal

		var lines = literal.split("\n")
		location.line_end = location.line_start + lines.length - 2
		location.column_end = content_offset + lines[lines.length - 2].length + 4
	end
end