toTitleCase method

Implementation

String toTitleCase() {
  return toLowerCase().replaceAllMapped(
      RegExp(
          r'[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+'),
      (Match match) {
    if (exceptions.contains(match[0])) {
      return match[0]!;
    }
    return "${match[0]?[0].toUpperCase()}${match[0]?.substring(1).toLowerCase()}";
  }).replaceAll(RegExp(r'(_|-)+'), ' ');
}