class SimplePoParser::Parser

def previous_multiline(key)
  begin
    # scan multilines until no further multiline is hit
    # /#\|\p{Blank}"/ needs to catch the double quote to ensure it hits a previous
    # multiline and not another line type.
    if @scanner.scan(/#\|\p{Blank}*"/)
      @scanner.pos = @scanner.pos - 1 # go one character back, so we can reuse the "message line" method
      add_result(key, message_line)
      previous_multiline(key) # go on until we no longer hit a multiline line
    end
  rescue PoSyntaxError => pe
    raise PoSyntaxError, "Syntax error in previous_multiline\n" + pe.message, pe.backtrace
  end
end