formatLyric static method

List<Lyric> formatLyric(String lyricStr)

格式化歌词

Implementation

static List<Lyric> formatLyric(String lyricStr) {
  if (lyricStr.trim().length == 0) {
    return [];
  }
  lyricStr = lyricStr.replaceAll("\r", "");
  RegExp reg = RegExp(r"""\[(.*?):(.*?)\](.*?)\n""");

  late Iterable<Match> matches;
  try {
    matches = reg.allMatches(lyricStr);
  } catch (e) {
    print(e.toString());
  }

  List<Lyric> lyrics = [];
  List<Match> list = matches.toList();
  for (int i = 0; i < list.length; i++) {
    var temp = list[i];
    var title = temp[1];
    if (!tags.contains(title) && list[i][3] != "") {
      lyrics.add(
        Lyric(
          lyric: list[i][3],
          startTime: lyricTimeToDuration(
            "${temp[1]}:${temp[2]}",
          ),
        ),
      );
    }
  }
  //移除所有空歌词
  lyrics.removeWhere((lyric) => lyric.lyric!.trim().isEmpty);
  for (int i = 0; i < lyrics.length - 1; i++) {
    lyrics[i].endTime = lyrics[i + 1].startTime;
  }
  lyrics.last.endTime = Duration(hours: 200);
  return lyrics;
}