XML テキスト表現から XmlReader オブジェクトを作成する C# スニペット？

gistfile1.cs

XmlReader createXMLReader(string text_representation) {
    XmlReaderSettings       settings    = new XmlReaderSettings();
    settings.NameTable = new NameTable();

    XmlNamespaceManager     manager     = new XmlNamespaceManager( settings.NameTable );
    XmlParserContext        context     = new XmlParserContext( settings.NameTable,
                                                                manager,
                                                                "ja",
                                                                XmlSpace.Default
                                                                );
    XmlReader               reader      = XmlReader.Create( new XmlTextReader( text_representation,
                                                                               XmlNodeType.Document,
                                                                               context
                                                                               ),
                                                            settings );

    return reader;
}