public void EvaluateContent(XDoc script, DekiScriptEnv env, DekiScriptEvalMode mode, out bool scripted) {
scripted = false;
switch(mode) {
case DekiScriptEvalMode.None:
break;
case DekiScriptEvalMode.Evaluate:
case DekiScriptEvalMode.EvaluateSafeMode: {
var expr = DekiScriptParser.Parse(script);
try {
expr = DekiContext.Current.Instance.ScriptRuntime.Evaluate(expr, mode, env);
} catch(Exception e) {
var error = DekiScriptLibrary.MakeErrorObject(e, env);
DekiContext.Current.Instance.ScriptRuntime.LogExceptionInOutput(error);
expr = DekiScriptExpression.Constant(DekiScriptLibrary.WebShowError((Hashtable)error.NativeValue));
}
// check if outcome is an XML document
var xml = expr as DekiScriptXml;
if(xml != null) {
// check if outcome is the expected content document
if(xml.Value.HasName("content")) {
script.Replace(((DekiScriptXml)expr).Value);
} else {
// remove all contents from existing document and append new document
script.RemoveNodes();
script.Start("body").Add(xml.Value).End();
}
} else if(expr is DekiScriptString) {
// remove all contents from existing document and append new document
script.RemoveNodes();
script.Start("body").Value(((DekiScriptString)expr).Value).End();
} else {
// remove all contents from existing document and append new document
script.RemoveNodes();
script.Start("body").Value(expr.ToString()).End();
}
}
break;
case DekiScriptEvalMode.EvaluateEditOnly:
case DekiScriptEvalMode.EvaluateSaveOnly:
case DekiScriptEvalMode.Verify: {
DekiScriptEvalContext context = new DekiScriptEvalContext(script, mode, false, DekiContext.Current.Instance.ScriptRuntime.GetMaxOutputSize(mode));
// add <head> and <tail> sections
context.AddHeadElements(script);
context.AddTailElements(script);
script["head"].RemoveNodes();
script["tail"].RemoveNodes();
// evaluate the script
bool error = false;
DekiScriptInterpreter.Evaluate(script, (XmlElement)script.Root.AsXmlNode, context, env, DekiContext.Current.Instance.ScriptRuntime, out scripted, ref error);
if((mode == DekiScriptEvalMode.Verify) || !error) {
context.MergeContextIntoDocument(script.AsXmlNode.OwnerDocument);
}
}
break;
default:
throw new InvalidOperationException(string.Format("unrecognized evaluation mode '{0}'", mode));
}
}
