RssCategory.cs

using System;
using System.Collections.Generic;
using System.Xml;
using Waher.Content.Xml;
 
namespace Waher.Content.Rss
{
    public class RssCategory
    {
        public RssCategory(XmlElement Xml, Uri BaseUri)
        {
            if (Xml is null)
                throw new ArgumentNullException(nameof(Xml));
 
            List<RssWarning> Warnings = new List<RssWarning>();
 
            this.Name = Xml.InnerText;
 
            if (Xml.HasAttribute("url"))
            {
                string s = XML.Attribute(Xml, "url");
                if (Uri.TryCreate(BaseUri, s, out Uri Url))
                    this.Domain = Url;
                else
                    Warnings.Add(new RssWarning(Xml, "Invalid URI: " + s));
            }
            else
                this.Domain = null;
 
            this.Warnings = Warnings.ToArray();
        }
 
        public RssWarning[] Warnings { get; }
 
        public Uri Domain { get; } = null;
 
        public string Name { get; }
    }
}