NavigatorConstructor.cs

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using System.Xml.XPath;
 
namespace System.Xml.Xsl.Runtime;
 
internal sealed class NavigatorConstructor
{
    private object _cache;
 
    public XPathNavigator GetNavigator(XmlEventCache events, XmlNameTable nameTable)
    {
        if (_cache == null)
        {
            XPathDocument xPathDocument = new XPathDocument(nameTable);
            XmlRawWriter xmlRawWriter = xPathDocument.LoadFromWriter(XPathDocument.LoadFlags.AtomizeNames | ((!events.HasRootNode) ? XPathDocument.LoadFlags.Fragment : XPathDocument.LoadFlags.None), events.BaseUri);
            events.EventsToWriter(xmlRawWriter);
            xmlRawWriter.Close();
            _cache = xPathDocument;
        }
        return ((XPathDocument)_cache).CreateNavigator();
    }
 
    public XPathNavigator GetNavigator(string text, string baseUri, XmlNameTable nameTable)
    {
        if (_cache == null)
        {
            XPathDocument xPathDocument = new XPathDocument(nameTable);
            XmlRawWriter xmlRawWriter = xPathDocument.LoadFromWriter(XPathDocument.LoadFlags.AtomizeNames, baseUri);
            xmlRawWriter.WriteString(text);
            xmlRawWriter.Close();
            _cache = xPathDocument;
        }
        return ((XPathDocument)_cache).CreateNavigator();
    }
}