static L<SRTEntry> parseIncompleteSRT(S text) {
  LS entries = splitAtEmptyLines(text);
  ret mapWithIndex(entries, (idx, input) -> {
    LS lines = trimAll(lines(input));
    new SRTEntry e;
    if (isInteger(first(lines)))
      lines = dropFirst(lines);
    LS time = regexpFirstGroups("^(\\d+):(\\d+)", first(lines));
    if (time != null) {
      e.start = parseInt(first(time))*60+parseInt(second(time));
      e.end = e.start+2;
      lines = dropFirst(lines);
    }
    e.index = idx+1;
    e.text = lines(lines);
    ret e;
  });
}