public static bool checkKey(JavaScriptObject obj, String key)
{
if (obj == null)
{
return(false);
}
if (String.IsNullOrEmpty(key))
{
return(false);
}
if (!obj.Contains(key))
{
return(false);
}
return(true);
}
/// <summary>
/// 用sub中的内容覆盖main中的内容
/// </summary>
/// <param name="jsMain"></param>
/// <param name="jsSub"></param>
/// <returns></returns>
public static IJavaScriptObject OrJson(IJavaScriptObject jsMain, IJavaScriptObject jsSub)
{
if (jsSub == null) //jsSub为NULL
{
//直接覆盖输出
return(null);
}
else if (
jsSub is JavaScriptNumber || //jsSub为数字类型
jsSub is JavaScriptBoolean || //jsSub为布尔类型
jsSub is JavaScriptString //jsSub为文本类型
)
{
//基本数据类型直接复制输出
return(jsSub);
}
else if (jsSub is JavaScriptArray) //jsSub为数组类型
{
JavaScriptArray jsNew = new JavaScriptArray();
if (jsMain is JavaScriptArray)
{
JavaScriptArray jaSub = jsSub as JavaScriptArray;
JavaScriptArray jaMain = jsMain as JavaScriptArray;
for (int i = 0; i < jaSub.Count; i++)
{
IJavaScriptObject q;
if (i < jaMain.Count && jaMain[i] != null && jaSub[i] != null && jaMain[i].GetType() == jaSub[i].GetType())
{
q = OrJson(jaMain[i], jaSub[i]);
}
else
{
q = jaSub[i];
}
jsNew.Add(q);
}
if (jaMain.Count > jaSub.Count)
{
for (int j = jaSub.Count; j < jaMain.Count; j++)
{
jsNew.Add(jaMain[j]);
}
}
}
else
{
JavaScriptArray jaSub = jsSub as JavaScriptArray;
for (int i = 0; i < jaSub.Count; i++)
{
jsNew.Add(jaSub[i]);
}
}
return(jsNew);
}
else if (jsSub is JavaScriptObject) //jsSub为对象类型
{
JavaScriptObject jsNew = new JavaScriptObject();
if (jsMain is JavaScriptObject)
{
JavaScriptObject joSub = jsSub as JavaScriptObject;
JavaScriptObject joMain = jsMain as JavaScriptObject;
foreach (string k in joSub.Keys)
{
if (joMain.Contains(k) && joSub[k] != null && joMain[k] != null && joSub[k].GetType() == joMain[k].GetType())
{
IJavaScriptObject q = OrJson(joMain[k], joSub[k]);
jsNew.Add(k, q);
}
else
{
jsNew.Add(k, joSub[k]);
}
}
foreach (string k in joMain.Keys)
{
if (!jsNew.Contains(k))
{
jsNew.Add(k, joMain[k]);
}
}
}
else
{
JavaScriptObject joSub = jsSub as JavaScriptObject;
foreach (string k in joSub.Keys)
{
jsNew.Add(k, joSub[k]);
}
}
return(jsNew);
}
else
{
//未知的jsSub类型,不修改jsMain
return(jsMain);
}
}
/// <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;
}