# File lib/org-ruby/line.rb, line 197
    def block_header_arguments
      header_arguments = { }

      if @line =~ BlockRegexp
        header_arguments_string = $5
        harray = header_arguments_string.split(' ')
        harray.each_with_index do |arg, i|
          next_argument = harray[i + 1]
          if arg =~ /^:/ and not (next_argument.nil? or next_argument =~ /^:/)
            header_arguments[arg] = next_argument
          end
        end
      end

      header_arguments
    end