Need for jumpers or "codas" in syntax?

[amiika]

Is there a need for jumps / codas / and signs?

D.C
D.C. al Fine
D.C. al Coda
D.C. al Segno

There could be a some kind of rule and repeat mechanism in the player part

  rule jumper
  ('[DC]' / '[DCF]' / '[F]' / '[S]' / '[DS]' / '[DSF]')
  {
    def value
      {
        :jumper=>text_value
      }
    end
  }
  end