parseXML static method

List<SubtitleCue> parseXML(String content)

Parse XML subtitle format (YouTube format)

Implementation

static List<SubtitleCue> parseXML(String content) {
  final cues = <SubtitleCue>[];

  try {
    // Parse XML subtitle format from YouTube
    // Format: <transcript><text start="0.0" dur="5.0">Subtitle text</text>...</transcript>
    final textPattern = RegExp(
      r'<text start="([\d.]+)" dur="([\d.]+)">(.*?)</text>',
      dotAll: true,
    );

    final matches = textPattern.allMatches(content);

    for (final match in matches) {
      final startSeconds = double.tryParse(match.group(1) ?? '0') ?? 0.0;
      final durationSeconds = double.tryParse(match.group(2) ?? '0') ?? 0.0;
      final text =
          match.group(3)?.replaceAll(RegExp(r'<[^>]+>'), '').trim() ?? '';

      if (text.isNotEmpty) {
        final start = Duration(milliseconds: (startSeconds * 1000).round());
        final end = Duration(
          milliseconds: ((startSeconds + durationSeconds) * 1000).round(),
        );

        cues.add(SubtitleCue(start: start, end: end, text: text));
      }
    }
  } catch (e) {
    // If XML parsing fails, return empty list
  }

  return cues;
}