code: def t_INITIAL_bin_NEWLINE(t):
      r'\r?\n'
      global LABELS_ALLOWED
  
      t.lexer.lineno += 1
      t.value = '\n'
      LABELS_ALLOWED = True
      return f t_INITIAL_bin_NEWLINE(t):
      r'\r?\n'
      global LABELS_ALLOWED
  
      t.lexer.lineno += 1
      t.value = '\n'
      LABELS_ALLOWED = True
      return t
docs: r'\r?\n