/// <summary>
/// Recursively evaluates the template nodes returned from the bot
/// </summary>
/// <param name="node">the node to evaluate</param>
/// <param name="query">the query that produced this node</param>
/// <param name="request">the request from the user</param>
/// <param name="result">the result to be sent to the user</param>
/// <param name="user">the user who originated the request</param>
/// <returns>the output string</returns>
private string ProcessNode(XmlNode node, SubQuery query, Request request, Result result, User user)
{
// check for timeout (to avoid infinite loops)
if (request.StartedOn.AddMilliseconds(request.Bot.TimeOut) < DateTime.Now)
{
request.Bot.WriteToLog("WARNING! Request timeout. User: "******" raw input: \"" + request.RawInput + "\" processing template: \"" + query.Template + "\"");
request.HasTimedOut = true;
return(string.Empty);
}
// process the node
string tagName = node.Name.ToLower();
if (tagName == "template")
{
StringBuilder templateResult = new StringBuilder();
if (node.HasChildNodes)
{
// recursively check
foreach (XmlNode childNode in node.ChildNodes)
{
templateResult.Append(ProcessNode(childNode, query, request, result, user));
}
}
return(templateResult.ToString());
}
else
{
AIMLTagHandler tagHandler = null;
tagHandler = getBespokeTags(user, query, request, result, node);
if (Equals(null, tagHandler))
{
switch (tagName)
{
case "bot":
tagHandler = new AIMLTagHandlers.Bot(this, user, query, request, result, node);
break;
case "condition":
tagHandler = new AIMLTagHandlers.Condition(this, user, query, request, result, node);
break;
case "date":
tagHandler = new AIMLTagHandlers.Date(this, user, query, request, result, node);
break;
case "formal":
tagHandler = new AIMLTagHandlers.Formal(this, user, query, request, result, node);
break;
case "gender":
tagHandler = new AIMLTagHandlers.Gender(this, user, query, request, result, node);
break;
case "get":
tagHandler = new AIMLTagHandlers.Get(this, user, query, request, result, node);
break;
case "gossip":
tagHandler = new AIMLTagHandlers.Gossip(this, user, query, request, result, node);
break;
case "id":
tagHandler = new AIMLTagHandlers.Id(this, user, query, request, result, node);
break;
case "input":
tagHandler = new AIMLTagHandlers.Input(this, user, query, request, result, node);
break;
case "javascript":
tagHandler = new AIMLTagHandlers.Javascript(this, user, query, request, result, node);
break;
case "learn":
tagHandler = new AIMLTagHandlers.Learn(this, user, query, request, result, node);
break;
case "lowercase":
tagHandler = new AIMLTagHandlers.Lowercase(this, user, query, request, result, node);
break;
case "person":
tagHandler = new AIMLTagHandlers.Person(this, user, query, request, result, node);
break;
case "person2":
tagHandler = new AIMLTagHandlers.Person2(this, user, query, request, result, node);
break;
case "random":
tagHandler = new AIMLTagHandlers.Random(this, user, query, request, result, node);
break;
case "sentence":
tagHandler = new AIMLTagHandlers.Sentence(this, user, query, request, result, node);
break;
case "set":
tagHandler = new AIMLTagHandlers.Set(this, user, query, request, result, node);
break;
case "size":
tagHandler = new AIMLTagHandlers.Size(this, user, query, request, result, node);
break;
case "sr":
tagHandler = new AIMLTagHandlers.Sr(this, user, query, request, result, node);
break;
case "srai":
tagHandler = new AIMLTagHandlers.Srai(this, user, query, request, result, node);
break;
case "star":
tagHandler = new AIMLTagHandlers.Star(this, user, query, request, result, node);
break;
case "system":
tagHandler = new AIMLTagHandlers.System(this, user, query, request, result, node);
break;
case "that":
tagHandler = new AIMLTagHandlers.That(this, user, query, request, result, node);
break;
case "thatstar":
tagHandler = new AIMLTagHandlers.ThatStar(this, user, query, request, result, node);
break;
case "think":
tagHandler = new AIMLTagHandlers.Think(this, user, query, request, result, node);
break;
case "topicstar":
tagHandler = new AIMLTagHandlers.TopicStar(this, user, query, request, result, node);
break;
case "uppercase":
tagHandler = new AIMLTagHandlers.Uppercase(this, user, query, request, result, node);
break;
case "version":
tagHandler = new AIMLTagHandlers.Version(this, user, query, request, result, node);
break;
default:
tagHandler = null;
break;
}
}
if (Equals(null, tagHandler))
{
return(node.InnerText);
}
else
{
if (tagHandler.IsRecursive)
{
if (node.HasChildNodes)
{
// recursively check
foreach (XmlNode childNode in node.ChildNodes)
{
if (childNode.NodeType != XmlNodeType.Text)
{
childNode.InnerXml = ProcessNode(childNode, query, request, result, user);
}
}
}
return(tagHandler.Transform());
}
else
{
string resultNodeInnerXML = tagHandler.Transform();
XmlNode resultNode = AIMLTagHandler.GetNode("<node>" + resultNodeInnerXML + "</node>");
if (resultNode.HasChildNodes)
{
StringBuilder recursiveResult = new StringBuilder();
// recursively check
foreach (XmlNode childNode in resultNode.ChildNodes)
{
recursiveResult.Append(ProcessNode(childNode, query, request, result, user));
}
return(recursiveResult.ToString());
}
else
{
return(resultNode.InnerXml);
}
}
}
}
}