Mono.Documentation.MDocToHtmlConverter.GetOverview C# (CSharp) Method

	private XmlDocument GetOverview (IEnumerable<string> directories)
	{
		var index = new XmlDocument ();

		var overview  = index.CreateElement ("Overview");
		var assemblies= index.CreateElement ("Assemblies");
		var types     = index.CreateElement ("Types");
		var ems       = index.CreateElement ("ExtensionMethods");

		index.AppendChild (overview);
		overview.AppendChild (assemblies);
		overview.AppendChild (types);
		overview.AppendChild (ems);

		bool first = true;

		foreach (var dir in directories) {
			var indexFile = Path.Combine (dir, "index.xml");
			try {
				var doc = new XmlDocument ();
				doc.Load (indexFile);
				if (first) {
					var c = doc.SelectSingleNode ("/Overview/Copyright");
					var t = doc.SelectSingleNode ("/Overview/Title");
					var r = doc.SelectSingleNode ("/Overview/Remarks");
					if (c != null && t != null && r != null) {
						var e = index.CreateElement ("Copyright");
						e.InnerXml = c.InnerXml;
						overview.AppendChild (e);

						e = index.CreateElement ("Title");
						e.InnerXml = t.InnerXml;
						overview.AppendChild (e);

						e = index.CreateElement ("Remarks");
						e.InnerXml = r.InnerXml;
						overview.AppendChild (e);

						first = false;
					}
				}
				AddAssemblies (assemblies, doc);
				AddTypes (types, doc, dir);
				AddChildren (ems, doc, "/Overview/ExtensionMethods");
			}
			catch (Exception e) {
				Message (TraceLevel.Warning, "Could not load documentation index '{0}': {1}",
						indexFile, e.Message);
			}
		}

		return index;
	}