class Rufo::Formatter

def track_alignment(key, target, offset = 0, id = nil)
  last = target.last
  if last && last[0] == @line
    # Track only the first alignment in a line
    return
  end
  @line_to_alignments_positions[@line] << [key, @column, target, target.size]
  info = [@line, @column, @indent, id, offset]
  target << info
  info
end