square_brackets_double_line_break-in.R

a[[b]]


a[[
  2
]
]

a[[
  2
]]


a[[
2
  ]]


a[[
  2
] #
]


a[[

  2


]]


a[[

  # this comment shouldn't mess
  1, c(

    1, 2

    # neither should this one

    )


]]