-- input --
account expenses:food ; my account
-- expect --
Journal
  AccountDirective j:1:1-2:1
    Account j:1:9-1:22
      SubAccount: "expenses" j:1:9-1:17
      SubAccount: "food" j:1:18-1:22
    Comment j:1:23-2:0
      Marker: ";"
      Text: "my account"