class RDoc::RD::BlockParser

def parse src
  @src = src
  @src.push false

  @footnotes = []
  @labels    = {}

  # @i: index(line no.) of src
  @i = 0

  # stack for current indentation
  @indent_stack = []

  # how indented.
  @current_indent = @indent_stack.join("")

  # RDoc::RD::BlockParser for tmp src
  @subparser = nil

  # which part is in now
  @in_part = nil
  @part_content = []

  @in_verbatim = false

  @yydebug = true

  document = do_parse

  unless @footnotes.empty? then
    blankline = document.parts.pop

    document.parts << RDoc::Markup::Rule.new(1)
    document.parts.concat @footnotes

    document.parts.push blankline
  end

  document
end