2 // System.Xml.XmlDocument
5 // Daniel Weber (daniel-weber@austin.rr.com)
6 // Kral Ferch <kral_ferch@hotmail.com>
7 // Jason Diamond <jason@injektilo.org>
8 // Miguel de Icaza (miguel@ximian.com)
9 // Duncan Mak (duncan@ximian.com)
10 // Atsushi Enomoto (ginga@kit.hi-ho.ne.jp)
12 // (C) 2001 Daniel Weber
13 // (C) 2002 Kral Ferch, Jason Diamond, Miguel de Icaza, Duncan Mak,
18 // Permission is hereby granted, free of charge, to any person obtaining
19 // a copy of this software and associated documentation files (the
20 // "Software"), to deal in the Software without restriction, including
21 // without limitation the rights to use, copy, modify, merge, publish,
22 // distribute, sublicense, and/or sell copies of the Software, and to
23 // permit persons to whom the Software is furnished to do so, subject to
24 // the following conditions:
26 // The above copyright notice and this permission notice shall be
27 // included in all copies or substantial portions of the Software.
29 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
30 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
31 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
32 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
33 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
34 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
35 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
39 using System.Globalization;
\r
42 using System.Xml.XPath;
43 using System.Diagnostics;
44 using System.Collections;
52 public class XmlDocument : XmlNode
56 XmlNameTable nameTable;
57 string baseURI = String.Empty;
58 XmlImplementation implementation;
59 bool preserveWhitespace = false;
61 Hashtable idTable = new Hashtable ();
63 // MS.NET rejects undeclared entities _only_ during Load(),
64 // while ReadNode() never rejects such node. So it signs
65 // whether we are on Load() or not (MS.NET uses Loader class,
66 // but we don't have to implement Load() as such)
73 public XmlDocument () : this (null, null)
77 protected internal XmlDocument (XmlImplementation imp) : this (imp, null)
81 public XmlDocument (XmlNameTable nt) : this (null, nt)
85 XmlDocument (XmlImplementation impl, XmlNameTable nt) : base (null)
88 implementation = new XmlImplementation ();
90 implementation = impl;
92 nameTable = (nt != null) ? nt : implementation.InternalNameTable;
93 AddDefaultNameTableKeys ();
94 resolver = new XmlUrlResolver ();
100 public event XmlNodeChangedEventHandler NodeChanged;
102 public event XmlNodeChangedEventHandler NodeChanging;
104 public event XmlNodeChangedEventHandler NodeInserted;
106 public event XmlNodeChangedEventHandler NodeInserting;
108 public event XmlNodeChangedEventHandler NodeRemoved;
110 public event XmlNodeChangedEventHandler NodeRemoving;
116 public override string BaseURI {
122 public XmlElement DocumentElement {
124 XmlNode node = FirstChild;
126 while (node != null) {
127 if (node is XmlElement)
129 node = node.NextSibling;
132 return node != null ? node as XmlElement : null;
136 public virtual XmlDocumentType DocumentType {
138 for (int i = 0; i < ChildNodes.Count; i++) {
139 XmlNode n = ChildNodes [i];
140 if(n.NodeType == XmlNodeType.DocumentType)
141 return (XmlDocumentType)n;
147 public XmlImplementation Implementation {
148 get { return implementation; }
151 public override string InnerXml {
153 return base.InnerXml;
155 set { // reason for overriding
156 this.LoadXml (value);
160 public override bool IsReadOnly {
161 get { return false; }
164 internal bool IsStandalone {
166 return FirstChild != null &&
167 FirstChild.NodeType == XmlNodeType.XmlDeclaration &&
168 ((XmlDeclaration) this.FirstChild).Standalone == "yes";
172 public override string LocalName {
173 get { return "#document"; }
176 public override string Name {
177 get { return "#document"; }
180 public XmlNameTable NameTable {
181 get { return nameTable; }
184 public override XmlNodeType NodeType {
185 get { return XmlNodeType.Document; }
188 internal override XPathNodeType XPathNodeType {
190 return XPathNodeType.Root;
194 public override XmlDocument OwnerDocument {
198 public bool PreserveWhitespace {
199 get { return preserveWhitespace; }
200 set { preserveWhitespace = value; }
203 internal XmlResolver Resolver {
204 get { return resolver; }
207 internal override string XmlLang {
208 get { return String.Empty; }
211 public virtual XmlResolver XmlResolver {
212 set { resolver = value; }
215 internal override XmlSpace XmlSpace {
217 return XmlSpace.None;
221 internal Encoding TextEncoding {
223 XmlDeclaration dec = FirstChild as XmlDeclaration;
225 if (dec == null || dec.Encoding == "")
228 return Encoding.GetEncoding (dec.Encoding);
235 internal void AddIdenticalAttribute (XmlAttribute attr)
237 idTable [attr.Value] = attr;
240 public override XmlNode CloneNode (bool deep)
242 XmlDocument doc = implementation != null ? implementation.CreateDocument () : new XmlDocument ();
243 doc.baseURI = baseURI;
247 for (int i = 0; i < ChildNodes.Count; i++)
248 doc.AppendChild (doc.ImportNode (ChildNodes [i], deep));
253 public XmlAttribute CreateAttribute (string name)
257 string namespaceURI = String.Empty;
259 ParseName (name, out prefix, out localName);
261 if (prefix == "xmlns" || (prefix == "" && localName == "xmlns"))
262 namespaceURI = XmlNamespaceManager.XmlnsXmlns;
263 else if (prefix == "xml")
264 namespaceURI = XmlNamespaceManager.XmlnsXml;
266 return CreateAttribute (prefix, localName, namespaceURI );
269 public XmlAttribute CreateAttribute (string qualifiedName, string namespaceURI)
274 ParseName (qualifiedName, out prefix, out localName);
276 return CreateAttribute (prefix, localName, namespaceURI);
279 public virtual XmlAttribute CreateAttribute (string prefix, string localName, string namespaceURI)
281 return CreateAttribute (prefix, localName, namespaceURI, false, true);
284 internal XmlAttribute CreateAttribute (string prefix, string localName, string namespaceURI, bool atomizedNames, bool checkNamespace)
286 if ((localName == null) || (localName == String.Empty))
287 throw new ArgumentException ("The attribute local name cannot be empty.");
289 return new XmlAttribute (prefix, localName, namespaceURI, this, atomizedNames, checkNamespace);
292 public virtual XmlCDataSection CreateCDataSection (string data)
294 return new XmlCDataSection (data, this);
297 public virtual XmlComment CreateComment (string data)
299 return new XmlComment (data, this);
302 protected internal virtual XmlAttribute CreateDefaultAttribute (string prefix, string localName, string namespaceURI)
304 XmlAttribute attr = CreateAttribute (prefix, localName, namespaceURI);
305 attr.isDefault = true;
309 public virtual XmlDocumentFragment CreateDocumentFragment ()
311 return new XmlDocumentFragment (this);
314 public virtual XmlDocumentType CreateDocumentType (string name, string publicId,
315 string systemId, string internalSubset)
317 return new XmlDocumentType (name, publicId, systemId, internalSubset, this);
320 private XmlDocumentType CreateDocumentType (DTDObjectModel dtd)
322 return new XmlDocumentType (dtd, this);
325 public XmlElement CreateElement (string name)
327 return CreateElement (name, String.Empty);
330 public XmlElement CreateElement (
331 string qualifiedName,
337 ParseName (qualifiedName, out prefix, out localName);
339 return CreateElement (prefix, localName, namespaceURI);
342 public virtual XmlElement CreateElement (
347 if ((localName == null) || (localName == String.Empty))
348 throw new ArgumentException ("The local name for elements or attributes cannot be null or an empty string.");
349 // LAMESPEC: MS.NET has a weird behavior that they can Load() from XmlTextReader
350 // whose Namespaces = false, but their CreateElement() never allows qualified name.
351 // I leave it as it is.
352 return new XmlElement (prefix != null ? prefix : String.Empty, localName, namespaceURI != null ? namespaceURI : String.Empty, this, false);
355 public virtual XmlEntityReference CreateEntityReference (string name)
357 return new XmlEntityReference (name, this);
360 protected internal virtual XPathNavigator CreateNavigator (XmlNode node)
363 return new XPathEditableDocument (node).CreateNavigator ();
365 return new XmlDocumentNavigator (node);
369 public virtual XmlNode CreateNode (
370 string nodeTypeString,
374 return CreateNode (GetNodeTypeFromString (nodeTypeString), name, namespaceURI);
377 public virtual XmlNode CreateNode (
382 string prefix = null;
383 string localName = name;
385 if ((type == XmlNodeType.Attribute) || (type == XmlNodeType.Element) || (type == XmlNodeType.EntityReference))
386 ParseName (name, out prefix, out localName);
388 return CreateNode (type, prefix, localName, namespaceURI);
391 public virtual XmlNode CreateNode (
398 case XmlNodeType.Attribute: return CreateAttribute (prefix, name, namespaceURI);
399 case XmlNodeType.CDATA: return CreateCDataSection (null);
400 case XmlNodeType.Comment: return CreateComment (null);
401 case XmlNodeType.Document: return new XmlDocument ();
402 case XmlNodeType.DocumentFragment: return CreateDocumentFragment ();
403 case XmlNodeType.DocumentType: return CreateDocumentType (null, null, null, null);
404 case XmlNodeType.Element: return CreateElement (prefix, name, namespaceURI);
405 case XmlNodeType.EntityReference: return CreateEntityReference (null);
406 case XmlNodeType.ProcessingInstruction: return CreateProcessingInstruction (null, null);
407 case XmlNodeType.SignificantWhitespace: return CreateSignificantWhitespace (String.Empty);
408 case XmlNodeType.Text: return CreateTextNode (null);
409 case XmlNodeType.Whitespace: return CreateWhitespace (String.Empty);
410 case XmlNodeType.XmlDeclaration: return CreateXmlDeclaration ("1.0", null, null);
411 default: throw new ArgumentOutOfRangeException(String.Format("{0}\nParameter name: {1}",
412 "Specified argument was out of the range of valid values", type.ToString ()));
416 public virtual XmlProcessingInstruction CreateProcessingInstruction (
420 return new XmlProcessingInstruction (target, data, this);
423 public virtual XmlSignificantWhitespace CreateSignificantWhitespace (string text)
425 if (!XmlChar.IsWhitespace (text))
426 throw new ArgumentException ("Invalid whitespace characters.");
428 return new XmlSignificantWhitespace (text, this);
431 public virtual XmlText CreateTextNode (string text)
433 return new XmlText (text, this);
436 public virtual XmlWhitespace CreateWhitespace (string text)
438 if (!XmlChar.IsWhitespace (text))
439 throw new ArgumentException ("Invalid whitespace characters.");
441 return new XmlWhitespace (text, this);
444 public virtual XmlDeclaration CreateXmlDeclaration (string version, string encoding,
447 if (version != "1.0")
448 throw new ArgumentException ("version string is not correct.");
450 if ((standalone != null && standalone != String.Empty) && !((standalone == "yes") || (standalone == "no")))
451 throw new ArgumentException ("standalone string is not correct.");
453 return new XmlDeclaration (version, encoding, standalone, this);
456 // FIXME: Currently XmlAttributeCollection.SetNamedItem() does
457 // add to the identity table, but in fact I delayed identity
458 // check on GetIdenticalAttribute. To make such way complete,
459 // we have to use MultiMap, not Hashtable.
461 // Well, MS.NET is also fragile around here.
462 public virtual XmlElement GetElementById (string elementId)
464 XmlAttribute attr = GetIdenticalAttribute (elementId);
465 return attr != null ? attr.OwnerElement : null;
468 public virtual XmlNodeList GetElementsByTagName (string name)
470 ArrayList nodeArrayList = new ArrayList ();
471 this.SearchDescendantElements (name, name == "*", nodeArrayList);
472 return new XmlNodeArrayList (nodeArrayList);
475 public virtual XmlNodeList GetElementsByTagName (string localName, string namespaceURI)
477 ArrayList nodeArrayList = new ArrayList ();
478 this.SearchDescendantElements (localName, localName == "*", namespaceURI, namespaceURI == "*", nodeArrayList);
479 return new XmlNodeArrayList (nodeArrayList);
482 private XmlNodeType GetNodeTypeFromString (string nodeTypeString)
484 switch (nodeTypeString) {
485 case "attribute": return XmlNodeType.Attribute;
486 case "cdatasection": return XmlNodeType.CDATA;
487 case "comment": return XmlNodeType.Comment;
488 case "document": return XmlNodeType.Document;
489 case "documentfragment": return XmlNodeType.DocumentFragment;
490 case "documenttype": return XmlNodeType.DocumentType;
491 case "element": return XmlNodeType.Element;
492 case "entityreference": return XmlNodeType.EntityReference;
493 case "processinginstruction": return XmlNodeType.ProcessingInstruction;
494 case "significantwhitespace": return XmlNodeType.SignificantWhitespace;
495 case "text": return XmlNodeType.Text;
496 case "whitespace": return XmlNodeType.Whitespace;
498 throw new ArgumentException(String.Format("The string doesn't represent any node type : {0}.", nodeTypeString));
502 internal XmlAttribute GetIdenticalAttribute (string id)
504 XmlAttribute attr = this.idTable [id] as XmlAttribute;
507 if (attr.OwnerElement == null || !attr.OwnerElement.IsRooted) {
508 // idTable.Remove (id);
514 public virtual XmlNode ImportNode (XmlNode node, bool deep)
517 throw new NullReferenceException ("Null node cannot be imported.");
519 switch (node.NodeType) {
520 case XmlNodeType.Attribute:
521 XmlAttribute srcAtt = node as XmlAttribute;
522 XmlAttribute dstAtt = this.CreateAttribute (srcAtt.Prefix, srcAtt.LocalName, srcAtt.NamespaceURI);
523 for (int i = 0; i < srcAtt.ChildNodes.Count; i++)
524 dstAtt.AppendChild (this.ImportNode (srcAtt.ChildNodes [i], deep));
527 case XmlNodeType.CDATA:
528 return this.CreateCDataSection (node.Value);
530 case XmlNodeType.Comment:
531 return this.CreateComment (node.Value);
533 case XmlNodeType.Document:
534 throw new XmlException ("Document cannot be imported.");
536 case XmlNodeType.DocumentFragment:
537 XmlDocumentFragment df = this.CreateDocumentFragment ();
539 for (int i = 0; i < node.ChildNodes.Count; i++)
540 df.AppendChild (this.ImportNode (node.ChildNodes [i], deep));
543 case XmlNodeType.DocumentType:
544 throw new XmlException ("DocumentType cannot be imported.");
546 case XmlNodeType.Element:
547 XmlElement src = (XmlElement)node;
548 XmlElement dst = this.CreateElement (src.Prefix, src.LocalName, src.NamespaceURI);
549 for (int i = 0; i < src.Attributes.Count; i++) {
550 XmlAttribute attr = src.Attributes [i];
551 if(attr.Specified) // copies only specified attributes
552 dst.SetAttributeNode ((XmlAttribute) this.ImportNode (attr, deep));
555 for (int i = 0; i < src.ChildNodes.Count; i++)
556 dst.AppendChild (this.ImportNode (src.ChildNodes [i], deep));
559 case XmlNodeType.EndElement:
560 throw new XmlException ("Illegal ImportNode call for NodeType.EndElement");
561 case XmlNodeType.EndEntity:
562 throw new XmlException ("Illegal ImportNode call for NodeType.EndEntity");
564 case XmlNodeType.EntityReference:
565 return this.CreateEntityReference (node.Name);
567 case XmlNodeType.None:
568 throw new XmlException ("Illegal ImportNode call for NodeType.None");
570 case XmlNodeType.ProcessingInstruction:
571 XmlProcessingInstruction pi = node as XmlProcessingInstruction;
572 return this.CreateProcessingInstruction (pi.Target, pi.Data);
574 case XmlNodeType.SignificantWhitespace:
575 return this.CreateSignificantWhitespace (node.Value);
577 case XmlNodeType.Text:
578 return this.CreateTextNode (node.Value);
580 case XmlNodeType.Whitespace:
581 return this.CreateWhitespace (node.Value);
583 case XmlNodeType.XmlDeclaration:
584 XmlDeclaration srcDecl = node as XmlDeclaration;
585 return this.CreateXmlDeclaration (srcDecl.Version, srcDecl.Encoding, srcDecl.Standalone);
588 throw new InvalidOperationException ("Cannot import specified node type: " + node.NodeType);
592 public virtual void Load (Stream inStream)
594 XmlTextReader reader = new XmlTextReader (inStream, NameTable);
595 reader.XmlResolver = resolver;
599 public virtual void Load (string filename)
601 XmlTextReader xr = null;
603 xr = new XmlTextReader (filename, NameTable);
604 xr.XmlResolver = resolver;
612 public virtual void Load (TextReader txtReader)
614 XmlTextReader xr = new XmlTextReader (txtReader, NameTable);
615 xr.XmlResolver = resolver;
619 public virtual void Load (XmlReader xmlReader)
621 // Reset our document
622 // For now this just means removing all our children but later this
623 // may turn out o need to call a private method that resets other things
624 // like properties we have, etc.
627 this.baseURI = xmlReader.BaseURI;
628 // create all contents with use of ReadNode()
632 XmlNode n = ReadNode (xmlReader);
635 if (preserveWhitespace || n.NodeType != XmlNodeType.Whitespace)
643 public virtual void LoadXml (string xml)
645 XmlTextReader xmlReader = new XmlTextReader (
647 XmlNodeType.Document,
648 new XmlParserContext (NameTable, null, null, XmlSpace.None));
650 xmlReader.XmlResolver = resolver;
657 internal void onNodeChanged (XmlNode node, XmlNode parent, string oldValue, string newValue)
659 if (NodeChanged != null)
660 NodeChanged (node, new XmlNodeChangedEventArgs
661 (XmlNodeChangedAction.Change,
662 node, parent, oldValue, newValue));
665 internal void onNodeChanging(XmlNode node, XmlNode parent, string oldValue, string newValue)
668 throw new ArgumentException ("Node is read-only.");
669 if (NodeChanging != null)
670 NodeChanging (node, new XmlNodeChangedEventArgs
671 (XmlNodeChangedAction.Change,
672 node, parent, oldValue, newValue));
675 internal void onNodeInserted (XmlNode node, XmlNode newParent)
677 if (NodeInserted != null)
678 NodeInserted (node, new XmlNodeChangedEventArgs
679 (XmlNodeChangedAction.Insert,
680 node, null, newParent));
683 internal void onNodeInserting (XmlNode node, XmlNode newParent)
685 if (NodeInserting != null)
686 NodeInserting (node, new XmlNodeChangedEventArgs
687 (XmlNodeChangedAction.Insert,
688 node, null, newParent));
691 internal void onNodeRemoved (XmlNode node, XmlNode oldParent)
693 if (NodeRemoved != null)
694 NodeRemoved (node, new XmlNodeChangedEventArgs
695 (XmlNodeChangedAction.Remove,
696 node, oldParent, null));
699 internal void onNodeRemoving (XmlNode node, XmlNode oldParent)
701 if (NodeRemoving != null)
702 NodeRemoving (node, new XmlNodeChangedEventArgs
703 (XmlNodeChangedAction.Remove,
704 node, oldParent, null));
707 private void ParseName (string name, out string prefix, out string localName)
709 int indexOfColon = name.IndexOf (':');
711 if (indexOfColon != -1) {
712 prefix = name.Substring (0, indexOfColon);
713 localName = name.Substring (indexOfColon + 1);
720 // Reads XmlReader and creates Attribute Node.
721 private XmlAttribute ReadAttributeNode(XmlReader reader)
723 if(reader.NodeType == XmlNodeType.Element)
724 reader.MoveToFirstAttribute ();
725 else if(reader.NodeType != XmlNodeType.Attribute)
726 throw new InvalidOperationException (MakeReaderErrorMessage ("bad position to read attribute.", reader));
727 XmlAttribute attribute = CreateAttribute (reader.Prefix, reader.LocalName, reader.NamespaceURI, false, false); // different NameTable
728 ReadAttributeNodeValue (reader, attribute);
730 // Keep the current reader position
732 if (attribute.NamespaceURI == string.Empty || attribute.NamespaceURI == null)
733 res = reader.MoveToAttribute (attribute.Name);
735 res = reader.MoveToAttribute (attribute.LocalName, attribute.NamespaceURI);
736 if (reader.IsDefault)
737 attribute.SetDefault ();
741 // Reads attribute from XmlReader and then creates attribute value children. XmlAttribute also uses this.
742 internal void ReadAttributeNodeValue (XmlReader reader, XmlAttribute attribute)
744 while (reader.ReadAttributeValue ()) {
745 if (reader.NodeType == XmlNodeType.EntityReference)
746 attribute.AppendChild (CreateEntityReference (reader.Name));
748 // Children of Attribute is restricted to CharacterData and EntityReference (Comment is not allowed).
749 attribute.AppendChild (CreateTextNode (reader.Value));
753 public virtual XmlNode ReadNode (XmlReader reader)
755 switch (reader.ReadState) {
756 case ReadState.Interactive:
758 case ReadState.Initial:
766 switch (reader.NodeType) {
768 case XmlNodeType.Attribute:
769 return ReadAttributeNode (reader);
771 case XmlNodeType.CDATA:
772 n = CreateCDataSection (reader.Value);
775 case XmlNodeType.Comment:
776 n = CreateComment (reader.Value);
779 case XmlNodeType.Element:
780 XmlElement element = CreateElement (reader.Prefix, reader.LocalName, reader.NamespaceURI);
781 element.IsEmpty = reader.IsEmptyElement;
783 // set the element's attributes.
784 if (reader.MoveToFirstAttribute ()) {
786 element.SetAttributeNode (ReadAttributeNode (reader));
787 } while (reader.MoveToNextAttribute ());
788 reader.MoveToElement ();
791 int depth = reader.Depth;
793 if (element.IsEmpty) {
799 while (reader.Depth > depth) {
800 n = ReadNode (reader);
801 if (preserveWhitespace || n.NodeType != XmlNodeType.Whitespace)
802 element.AppendChild (n);
807 case XmlNodeType.ProcessingInstruction:
808 n = CreateProcessingInstruction (reader.Name, reader.Value);
811 case XmlNodeType.Text:
812 n = CreateTextNode (reader.Value);
815 case XmlNodeType.XmlDeclaration:
816 n = CreateXmlDeclaration ("1.0" , String.Empty, String.Empty);
817 n.Value = reader.Value;
820 case XmlNodeType.DocumentType:
821 DTDObjectModel dtd = null;
822 IHasXmlParserContext ctxReader = reader as IHasXmlParserContext;
823 if (ctxReader != null)
824 dtd = ctxReader.ParserContext.Dtd;
827 n = CreateDocumentType (dtd);
829 n = CreateDocumentType (reader.Name, reader ["PUBLIC"], reader ["SYSTEM"], reader.Value);
832 case XmlNodeType.EntityReference:
833 if (this.loadMode && this.DocumentType != null &&
834 DocumentType.Entities.GetNamedItem (reader.Name) == null)
835 throw new XmlException ("Reference to undeclared entity was found.");
837 n = CreateEntityReference (reader.Name);
840 case XmlNodeType.SignificantWhitespace:
841 n = CreateSignificantWhitespace (reader.Value);
844 case XmlNodeType.Whitespace:
845 n = CreateWhitespace (reader.Value);
848 case XmlNodeType.None:
852 // No idea why MS does throw NullReferenceException ;-P
853 throw new NullReferenceException ("Unexpected node type " + reader.NodeType + ".");
860 private string MakeReaderErrorMessage (string message, XmlReader reader)
862 IXmlLineInfo li = reader as IXmlLineInfo;
864 return String.Format (CultureInfo.InvariantCulture, "{0} Line number = {1}, Inline position = {2}.", message, li.LineNumber, li.LinePosition);
869 internal void RemoveIdenticalAttribute (string id)
874 public virtual void Save (Stream outStream)
876 XmlTextWriter xmlWriter = new XmlTextWriter (outStream, TextEncoding);
877 if (!PreserveWhitespace)
878 xmlWriter.Formatting = Formatting.Indented;
879 WriteContentTo (xmlWriter);
883 public virtual void Save (string filename)
885 XmlTextWriter xmlWriter = new XmlTextWriter (filename, TextEncoding);
887 if (!PreserveWhitespace)
888 xmlWriter.Formatting = Formatting.Indented;
889 WriteContentTo (xmlWriter);
895 public virtual void Save (TextWriter writer)
897 XmlTextWriter xmlWriter = new XmlTextWriter (writer);
898 if (!PreserveWhitespace)
899 xmlWriter.Formatting = Formatting.Indented;
900 if (FirstChild != null && FirstChild.NodeType != XmlNodeType.XmlDeclaration)
901 xmlWriter.WriteStartDocument ();
902 WriteContentTo (xmlWriter);
903 xmlWriter.WriteEndDocument ();
907 public virtual void Save (XmlWriter xmlWriter)
910 // This should preserve white space if PreserveWhiteSpace is true
912 bool autoXmlDecl = FirstChild != null && FirstChild.NodeType != XmlNodeType.XmlDeclaration;
914 xmlWriter.WriteStartDocument ();
915 WriteContentTo (xmlWriter);
917 xmlWriter.WriteEndDocument ();
921 public override void WriteContentTo (XmlWriter w)
923 for (int i = 0; i < ChildNodes.Count; i++)
924 ChildNodes [i].WriteTo (w);
927 public override void WriteTo (XmlWriter w)
932 private void AddDefaultNameTableKeys ()
934 // The following keys are default of MS .NET Framework
935 nameTable.Add ("#text");
936 nameTable.Add ("xml");
937 nameTable.Add ("xmlns");
938 nameTable.Add ("#entity");
939 nameTable.Add ("#document-fragment");
940 nameTable.Add ("#comment");
941 nameTable.Add ("space");
942 nameTable.Add ("id");
943 nameTable.Add ("#whitespace");
944 nameTable.Add ("http://www.w3.org/2000/xmlns/");
945 nameTable.Add ("#cdata-section");
946 nameTable.Add ("lang");
947 nameTable.Add ("#document");
948 nameTable.Add ("#significant-whitespace");