class Rufo::Formatter

def skip_space_or_newline(want_semicolon = false)
  found_newline = false
  found_comment = false
  last          = nil
  while true
    case current_token_kind
    when :on_sp
      next_token
    when :on_nl, :on_ignored_nl
      next_token
      last          = :newline
      found_newline = true
    when :on_semicolon
      if !found_newline && !found_comment
        write "; "
      end
      next_token
      last = :semicolon
    when :on_comment
      write_line if last == :newline
      write_indent if found_comment
      if current_token_value.end_with?("\n")
        write current_token_value.rstrip
        write_line
      else
        write current_token_value
      end
      next_token
      found_comment = true
      last          = :comment
    else
      break
    end
  end
end