parseHtml function

@visibleForTesting void parseHtml(Subtitle subtitle)

Implementation

@visibleForTesting
void parseHtml(Subtitle subtitle) {
  //https://regex101.com/r/LtkFNE/4
  final RegExp detectAll = RegExp(
      r'((<(b|i|u|(font color="((#([0-9a-fA-F]+))|((rgb|rgba)\(((\d{1,3}),(\d{1,3}),(\d{1,3})|(\d{1,3}),(\d{1,3}),(\d{1,3}),(0?\.[1-9]{1,2}|1))\))|([a-z]+))"))>)+)([^<|>|\/]+)((<\/(b|i|u|font)>)+)+|([^<|>|\/]+)');

  final RegExp detectFont = RegExp(r'(<font color=")');
  final RegExp detectI = RegExp(r'(<i>)');
  final RegExp detectB = RegExp(r'(<b>)');
  final RegExp detectU = RegExp(r'(<u>)');

  for (String line in subtitle.rawLines) {
    int index = subtitle.rawLines.indexOf(line);
    Iterable<Match> allMatches = detectAll.allMatches(line);

    for (Match match in allMatches) {
      String? firstMatch = match.group(1);
      // not coded text
      if (match.group(23) != null) {
        subtitle.parsedLines[index].subLines
            .add(SubLine(rawString: match.group(23)));
        continue;
      }
      //Html-coded text
      else {
        SubLine subLineWithCode = SubLine();

        if (detectI.hasMatch(firstMatch!)) {
          subLineWithCode.htmlCode.i = true;
        }

        if (detectB.hasMatch(firstMatch)) {
          subLineWithCode.htmlCode.b = true;
        }
        if (detectU.hasMatch(firstMatch)) {
          subLineWithCode.htmlCode.u = true;
        }
        //font color
        if (detectFont.hasMatch(firstMatch)) {
          //hexColor
          if (match.group(7) != null) {
            subLineWithCode.htmlCode.fontColor = Color.hex(match.group(7)!);
          }
          //rgb or rgba
          if (match.group(8) != null) {
            if (match.group(9) == 'rgb') {
              subLineWithCode.htmlCode.fontColor = Color.createRgba(
                  int.parse(match.group(11)!),
                  int.parse(match.group(12)!),
                  int.parse(match.group(13)!));
            }
            if (match.group(9) == 'rgba') {
              subLineWithCode.htmlCode.fontColor = Color.createRgba(
                  int.parse(match.group(14)!),
                  int.parse(match.group(15)!),
                  int.parse(match.group(16)!),
                  num.parse(match.group(17)!));
            }
          }

          // if color word names
          if (match.group(18) != null) {
            subLineWithCode.htmlCode.fontColor = colorMap.entries
                .firstWhere((MapEntry entry) => entry.key == match.group(18))
                .value;
          }
        }
        subLineWithCode.rawString = match.group(19);

        subtitle.parsedLines[index].subLines.add(subLineWithCode);
      }
    }
  }
}