/// <summary>
        ///   Visits the <c>a</c> extended documentation element.
        /// </summary>
        ///
        public override void VisitAnchor(Anchor anchor)
        {
            string url  = DistributionManager.GetDocumentationUrl(anchor.Href);
            string text = parse(anchor.Href, false);

            if (!String.IsNullOrEmpty(anchor.Content))
            {
                text = anchor.Content;
            }

            builder.Append(hyperlink(url, text));
        }
        /// <summary>
        ///   Visits the <c>see</c> documentation element.
        /// </summary>
        ///
        public override void VisitSee(See see)
        {
            string url  = DistributionManager.GetDocumentationUrl(see.Cref);
            string text = parse(see.Cref, false);

            if (!String.IsNullOrEmpty(see.Content))
            {
                text = see.Content;
            }

            builder.Append(hyperlink(url, text));
        }
        /// <summary>
        ///   Visits the <c>seealso</c> documentation element.
        /// </summary>
        ///
        public override void VisitSeeAlso(SeeAlso seeAlso)
        {
            string url  = DistributionManager.GetDocumentationUrl(seeAlso.Cref);
            string text = parse(seeAlso.Cref, false);

            var hyperlink = new HyperlinkViewModel()
            {
                Url = url, Text = text
            };

            if (!String.IsNullOrEmpty(seeAlso.Content))
            {
                hyperlink.Text = seeAlso.Content;
            }

            current.SeeAlso.Add(hyperlink);
        }