//--- Extension Methods ---
public static StringBuilder AppendLiteral(this StringBuilder builder, DekiScriptLiteral literal) {
if(literal is DekiScriptString) {
builder.Append(((DekiScriptString)literal).Value);
} else {
builder.Append(literal.ToString());
}
return builder;
}
private void AddText(XmlNode context, DekiScriptLiteral literal) {
if(context == null) {
ConvertStateToHtml(null);
}
// TODO (steveb): this is just plain retarded; why do we need to distinguish between string and non-string?!?
if(literal is DekiScriptString) {
(context ?? _body).AppendChild(_document.CreateTextNode(((DekiScriptString)literal).Value));
} else {
(context ?? _body).AppendChild(_document.CreateTextNode(literal.ToString()));
}
}
internal void InsertValueBeforeNode(XmlNode parent, XmlNode reference, DekiScriptLiteral value) {
if((value is DekiScriptXml) || (value is DekiScriptUri)) {
XDoc xml = value.AsEmbeddableXml(Mode == DekiScriptEvalMode.EvaluateSafeMode);
if(xml.HasName("html")) {
// TODO (steveb): merge XML namespaces
// merge <head> and <tail> sections
AddHeadElements(xml);
AddTailElements(xml);
// loop over body elements in response
foreach(XDoc body in xml["body"]) {
string target = body["@target"].AsText;
string conflict = body["@conflict"].AsText ?? "ignore";
// check if the main body is targeted or something else
if(string.IsNullOrEmpty(target)) {
// append body nodes
foreach(XmlNode node in body.AsXmlNode.ChildNodes) {
parent.InsertBefore(parent.OwnerDocument.ImportNode(node, true), reference);
}
} else {
// check if the targeted body already exists
if(Bodies.ContainsKey(target) && !StringUtil.EqualsInvariant(conflict, "replace")) {
if(StringUtil.EqualsInvariant(conflict, "append")) {
// append nodes to existing body
Bodies[target].Add(body.AsXmlNode);
}
} else {
// create a new body element
List<XmlNode> list = new List<XmlNode>();
list.Add(body.AsXmlNode);
Bodies[target] = list;
}
}
}
} else if(!xml.IsEmpty) {
// replace the current node with the entire document
parent.InsertBefore(parent.OwnerDocument.ImportNode(xml.AsXmlNode, true), reference);
}
} else if(value is DekiScriptComplexLiteral) {
// append text respresentation of value
parent.InsertBefore(CreateTextNode(value.ToString()), reference);
} else {
// append value cast to text
string text = value.AsString();
if(!string.IsNullOrEmpty(text)) {
parent.InsertBefore(CreateTextNode(text), reference);
}
}
}
