/// <summary>
/// Deserialzes from ajax XML.
/// </summary>
/// <param name="n">The n.</param>
/// <returns></returns>
internal static IJavaScriptObject DeserialzeFromAjaxXml(XmlNode n)
{
switch (n.Name)
{
case "array":
JavaScriptArray a = new JavaScriptArray();
foreach (XmlNode item in n.ChildNodes)
{
a.Add(DeserialzeFromAjaxXml(item));
}
return(a);
case "boolean":
JavaScriptBoolean b = new JavaScriptBoolean(n.InnerText == "true");
return(b);
case "number":
JavaScriptNumber i = new JavaScriptNumber();
i.Append(n.InnerText);
return(i);
case "string":
JavaScriptString s = new JavaScriptString();
s.Append(n.InnerText);
return(s);
case "object":
JavaScriptObject o = new JavaScriptObject();
foreach (XmlNode p in n.SelectNodes("property"))
{
if (p.Attributes["name"] == null || p.ChildNodes.Count != 1)
{
continue;
}
o.Add(p.Attributes["name"].Value, DeserialzeFromAjaxXml(p.ChildNodes[0]));
}
return(o);
}
return(null);
}
/// <summary>
/// Reads the next object from the JSON string.
/// </summary>
/// <returns>
/// Returns an Hashtable with all properties.
/// </returns>
internal JavaScriptObject ReadObject()
{
JavaScriptObject h = new JavaScriptObject();
string k;
if (_ch == JSON_OBJECT_BEGIN)
{
ReadNext();
ReadWhiteSpaces();
if (_ch == JSON_OBJECT_END)
{
ReadNext();
return(h);
}
while (_ch != END_OF_STRING)
{
k = ReadString();
ReadWhiteSpaces();
if (_ch != JSON_PROPERTY_SEPARATOR)
{
break;
}
ReadNext();
h.Add(k, GetObject());
ReadWhiteSpaces();
if (_ch == JSON_OBJECT_END)
{
ReadNext();
return(h);
}
else if (_ch != JSON_ITEMS_SEPARATOR)
{
break;
}
ReadNext();
ReadWhiteSpaces();
}
}
throw new NotSupportedException("obj");
}
/// <summary>
/// Converts an XML document to an IJavaScriptObject (JSON).
/// <see cref="http://www.xml.com/pub/a/2006/05/31/converting-between-xml-and-json.html?page=1">Stefan Goessner</see>
/// <see cref="http://developer.yahoo.com/common/json.html#xml">Yahoo XML JSON</see>
/// </summary>
/// <param name="n">The XmlNode to serialize to JSON.</param>
/// <returns>A IJavaScriptObject.</returns>
public static IJavaScriptObject GetIJavaScriptObjectFromXmlNode(XmlNode n)
{
if (n == null)
{
return(null);
}
//if (xpath == "" || xpath == "/")
// xpath = n.Name;
System.Text.RegularExpressions.Regex r = new System.Text.RegularExpressions.Regex(@"\w+|\W+", System.Text.RegularExpressions.RegexOptions.Compiled);
JavaScriptObject o = new JavaScriptObject();
if (n.NodeType == XmlNodeType.Element)
{
for (int i = 0; i < n.Attributes.Count; i++)
{
o.Add("@" + n.Attributes[i].Name, new JavaScriptString(n.Attributes[i].Value));
}
if (n.FirstChild != null) // element has child nodes
{
int textChild = 0;
bool hasElementChild = false;
for (XmlNode e = n.FirstChild; e != null; e = e.NextSibling)
{
if (e.NodeType == XmlNodeType.Element)
{
hasElementChild = true;
}
if (e.NodeType == XmlNodeType.Text && r.IsMatch(e.InnerText))
{
textChild++; // non-whitespace text
}
}
if (hasElementChild)
{
if (textChild < 2) // structured element with evtl. a single text node
{
for (XmlNode e = n.FirstChild; e != null; e = e.NextSibling)
{
if (e.NodeType == XmlNodeType.Text)
{
o.Add("#text", new JavaScriptString(e.InnerText));
}
else if (o.Contains(e.Name))
{
if (o[e.Name] is JavaScriptArray)
{
((JavaScriptArray)o[e.Name]).Add(GetIJavaScriptObjectFromXmlNode(e));
}
else
{
IJavaScriptObject _o = o[e.Name];
JavaScriptArray a = new JavaScriptArray();
a.Add(_o);
a.Add(GetIJavaScriptObjectFromXmlNode(e));
o[e.Name] = a;
}
}
else
{
o.Add(e.Name, GetIJavaScriptObjectFromXmlNode(e));
}
}
}
}
else if (textChild > 0)
{
if (n.Attributes.Count == 0)
{
return(new JavaScriptString(n.InnerText));
}
else
{
o.Add("#text", new JavaScriptString(n.InnerText));
}
}
}
if (n.Attributes.Count == 0 && n.FirstChild == null)
{
return(new JavaScriptString(n.InnerText));
}
}
else if (n.NodeType == XmlNodeType.Document)
{
return(GetIJavaScriptObjectFromXmlNode(((XmlDocument)n).DocumentElement));
}
else
{
throw new NotSupportedException("Unhandled node type '" + n.NodeType + "'.");
}
return(o);
}
