webfeed/lib/domain/rss_itunes_category.dart

import 'package:xml/xml.dart';

class RssItunesCategory {
  final String category;
  final List<String> subCategories;

  RssItunesCategory({this.category, this.subCategories});

  factory RssItunesCategory.parse(XmlElement element) {
    if (element == null) return null;

    Iterable<XmlElement> subCategories;
    try {
      subCategories = element.findElements("itunes:category");
    } on StateError {
      subCategories = null;
    }
    return RssItunesCategory(
      category: element.getAttribute("text")?.trim(),
      subCategories:
          subCategories?.map((ele) => ele.getAttribute("text")?.trim())?.toList(),
    );
  }
}