XmlCDataSection.cs

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using System.Xml.XPath;
 
namespace System.Xml;
 
public class XmlCDataSection : XmlCharacterData
{
    public override string Name => OwnerDocument.strCDataSectionName;
 
    public override string LocalName => OwnerDocument.strCDataSectionName;
 
    public override XmlNodeType NodeType => XmlNodeType.CDATA;
 
    public override XmlNode? ParentNode
    {
        get
        {
            switch (parentNode.NodeType)
            {
            case XmlNodeType.Document:
                return null;
            case XmlNodeType.Text:
            case XmlNodeType.CDATA:
            case XmlNodeType.Whitespace:
            case XmlNodeType.SignificantWhitespace:
            {
                XmlNode xmlNode = parentNode.parentNode;
                while (xmlNode.IsText)
                {
                    xmlNode = xmlNode.parentNode;
                }
                return xmlNode;
            }
            default:
                return parentNode;
            }
        }
    }
 
    internal override XPathNodeType XPNodeType => XPathNodeType.Text;
 
    internal override bool IsText => true;
 
    public override XmlNode? PreviousText
    {
        get
        {
            if (parentNode != null && parentNode.IsText)
            {
                return parentNode;
            }
            return null;
        }
    }
 
    protected internal XmlCDataSection(string? data, XmlDocument doc)
        : base(data, doc)
    {
    }
 
    public override XmlNode CloneNode(bool deep)
    {
        return OwnerDocument.CreateCDataSection(Data);
    }
 
    public override void WriteTo(XmlWriter w)
    {
        w.WriteCData(Data);
    }
 
    public override void WriteContentTo(XmlWriter w)
    {
    }
}