XmlText.cs

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using System.Xml.XPath;
 
namespace System.Xml;
 
public class XmlText : XmlCharacterData
{
    public override string Name => OwnerDocument.strTextName;
 
    public override string LocalName => OwnerDocument.strTextName;
 
    public override XmlNodeType NodeType => XmlNodeType.Text;
 
    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;
            }
        }
    }
 
    public override string? Value
    {
        get
        {
            return Data;
        }
        set
        {
            Data = value;
            XmlNode xmlNode = parentNode;
            if (xmlNode != null && xmlNode.NodeType == XmlNodeType.Attribute && xmlNode is XmlUnspecifiedAttribute { Specified: false } xmlUnspecifiedAttribute)
            {
                xmlUnspecifiedAttribute.SetSpecified(f: true);
            }
        }
    }
 
    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;
        }
    }
 
    internal XmlText(string strData)
        : this(strData, null)
    {
    }
 
    protected internal XmlText(string? strData, XmlDocument doc)
        : base(strData, doc)
    {
    }
 
    public override XmlNode CloneNode(bool deep)
    {
        return OwnerDocument.CreateTextNode(Data);
    }
 
    public virtual XmlText SplitText(int offset)
    {
        XmlNode xmlNode = ParentNode;
        int length = Length;
        if (offset > length)
        {
            throw new ArgumentOutOfRangeException("offset");
        }
        if (xmlNode == null)
        {
            throw new InvalidOperationException(System.SR.Xdom_TextNode_SplitText);
        }
        int count = length - offset;
        string text = Substring(offset, count);
        DeleteData(offset, count);
        XmlText xmlText = OwnerDocument.CreateTextNode(text);
        xmlNode.InsertAfter(xmlText, this);
        return xmlText;
    }
 
    public override void WriteTo(XmlWriter w)
    {
        w.WriteString(Data);
    }
 
    public override void WriteContentTo(XmlWriter w)
    {
    }
}