/// <summary>
/// Save a OPML category to a specified location.
/// </summary>
/// <param name="opmlCategory">Category structure</param>
/// <param name="path">Save location</param>
public static void Export(IOpmlCategory opmlCategory, string path)
{
Export(opmlCategory, path, new OpmlExportSettings());
}
/// <summary>
/// Save a OPML category to a specified location.
/// </summary>
/// <param name="opmlCategory">Category structure</param>
/// <param name="path">Save location</param>
/// <param name="settings">Optional settings object</param>
public static void Export(IOpmlCategory opmlCategory, string path, OpmlExportSettings settings)
{
try
{
XmlDocument xmlDoc = new XmlDocument();
XmlDeclaration decl = xmlDoc.CreateXmlDeclaration("1.0", "UTF-8", null);
xmlDoc.AppendChild(decl);
XmlComment elComment = xmlDoc.CreateComment(settings.Comment);
xmlDoc.AppendChild(elComment);
XmlElement elOpml = xmlDoc.CreateElement("opml");
switch (settings.OpmlVersion)
{
case OpmlVersion.V10:
elOpml.SetAttribute("version", "1.0");
break;
case OpmlVersion.V11:
elOpml.SetAttribute("version", "1.1");
break;
case OpmlVersion.V20:
elOpml.SetAttribute("version", "2.0");
break;
default:
break;
}
xmlDoc.AppendChild(elOpml);
XmlElement elHead = xmlDoc.CreateElement("head");
elOpml.AppendChild(elHead);
XmlElement elTitle = xmlDoc.CreateElement("title");
elTitle.InnerText = settings.Title;
elHead.AppendChild(elTitle);
XmlElement elDate = xmlDoc.CreateElement("dateCreated");
elDate.InnerText = DateTime.Now.ToString();
elHead.AppendChild(elDate);
XmlElement elOwner = xmlDoc.CreateElement("ownerName");
elOwner.InnerText = settings.OwnerName;
elHead.AppendChild(elOwner);
XmlElement elBody = xmlDoc.CreateElement("body");
elOpml.AppendChild(elBody);
if (!settings.UseFirstCategoryAsRoot)
{
XmlElement elOutline = xmlDoc.CreateElement("outline");
elOutline.SetAttribute("text", opmlCategory.Title);
elOutline.SetAttribute("title", opmlCategory.Title);
elBody.AppendChild(elOutline);
appendBodyElement(xmlDoc, elOutline, opmlCategory);
}
else
{
appendBodyElement(xmlDoc, elBody, opmlCategory);
}
xmlDoc.Save(path);
}
catch (Exception ex)
{
errors.Add(ex);
}
}
private static void appendBodyElement(XmlDocument xmlDoc, XmlElement parentElement, IOpmlCategory opmlCategory)
{
foreach (IOpmlCategory subCat in opmlCategory.Categories)
{
XmlElement elOutline = xmlDoc.CreateElement("outline");
elOutline.SetAttribute("text", subCat.Title);
elOutline.SetAttribute("title", subCat.Title);
parentElement.AppendChild(elOutline);
appendBodyElement(xmlDoc, elOutline, subCat);
}
foreach (Feed feed in opmlCategory.Feeds)
{
XmlElement elFeed = xmlDoc.CreateElement("outline");
elFeed.SetAttribute("text", feed.Title);
elFeed.SetAttribute("title", feed.Title);
elFeed.SetAttribute("type", "rss");
elFeed.SetAttribute("xmlUrl", feed.XmlUri.Uri);
elFeed.SetAttribute("htmlUrl", feed.WebUri.Uri);
if (feed.Language.Trim().Length == 2)
elFeed.SetAttribute("language", feed.Language);
parentElement.AppendChild(elFeed);
}
}
