gfody

XmlElement JsonToXml(string json, string root = "root", string unnamed_array_item = "item")
{
	var r = new Regex(@"\s*([\[\]{}]|""([^""]*)""\s*:|(true|false|null|-?\d+(?:\.\d+)?|""[^""]*"")\s*),?", RegexOptions.Multiline | RegexOptions.Compiled);
	var doc = new XmlDocument(); var n = doc.CreateElement(root); var s = new Stack<XmlElement>(); string name = null, value = "";
	var m = r.Match(json);
	while (m.Success)
	{
		if (m.Groups[1].Value == "]") name = null;
		else if (m.Groups[1].Value == "[") name = name ?? unnamed_array_item;
		else if (m.Groups[1].Value.EndsWith(":")) name = m.Groups[2].Value;