List _splitExtension()

in lib/src/parsed_path.dart [187:206]

• 13 lines of code
• 5 McCabe index (conditional complexity)

  List<String> _splitExtension([int level = 1]) {
    if (level <= 0) {
      throw RangeError.value(
          level, 'level', "level's value must be greater than 0");
    }

    final file =
        parts.cast<String?>().lastWhere((p) => p != '', orElse: () => null);

    if (file == null) return ['', ''];
    if (file == '..') return ['..', ''];

    final lastDot = _kthLastIndexOf(file, '.', level);

    // If there is no dot, or it's the first character, like '.bashrc', it
    // doesn't count.
    if (lastDot <= 0) return [file, ''];

    return [file.substring(0, lastDot), file.substring(lastDot)];
  }