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,
15 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
17 // Permission is hereby granted, free of charge, to any person obtaining
18 // a copy of this software and associated documentation files (the
19 // "Software"), to deal in the Software without restriction, including
20 // without limitation the rights to use, copy, modify, merge, publish,
21 // distribute, sublicense, and/or sell copies of the Software, and to
22 // permit persons to whom the Software is furnished to do so, subject to
23 // the following conditions:
25 // The above copyright notice and this permission notice shall be
26 // included in all copies or substantial portions of the Software.
28 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
29 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
30 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
31 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
32 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
33 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
34 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
37 using System.Globalization;
39 using System.Security.Permissions;
41 using System.Xml.XPath;
42 using System.Diagnostics;
43 using System.Collections;
46 using System.Xml.Schema;
52 public class XmlDocument : XmlNode, IHasXmlChildNode
55 static readonly Type [] optimal_create_types = new Type [] {typeof (string), typeof (string), typeof (string)};
56 bool optimal_create_element, optimal_create_attribute;
58 XmlNameTable nameTable;
59 string baseURI = String.Empty;
60 XmlImplementation implementation;
61 bool preserveWhitespace = false;
63 Hashtable idTable = new Hashtable ();
64 XmlNameEntryCache nameCache;
65 XmlLinkedNode lastLinkedChild;
66 XmlAttribute nsNodeXml;
69 IXmlSchemaInfo schemaInfo;
72 // MS.NET rejects undeclared entities _only_ during Load(),
73 // while ReadNode() never rejects such node. So it signs
74 // whether we are on Load() or not (MS.NET uses Loader class,
75 // but we don't have to implement Load() as such)
82 public XmlDocument () : this (null, null)
86 protected internal XmlDocument (XmlImplementation imp) : this (imp, null)
90 public XmlDocument (XmlNameTable nt) : this (null, nt)
94 XmlDocument (XmlImplementation impl, XmlNameTable nt) : base (null)
97 implementation = new XmlImplementation ();
99 implementation = impl;
101 nameTable = (nt != null) ? nt : implementation.InternalNameTable;
102 nameCache = new XmlNameEntryCache (nameTable);
103 AddDefaultNameTableKeys ();
104 resolver = new XmlUrlResolver ();
106 Type type = GetType ();
107 optimal_create_element = type.GetMethod ("CreateElement", optimal_create_types).DeclaringType == typeof (XmlDocument);
108 optimal_create_attribute = type.GetMethod ("CreateAttribute", optimal_create_types).DeclaringType == typeof (XmlDocument);
114 public event XmlNodeChangedEventHandler NodeChanged;
116 public event XmlNodeChangedEventHandler NodeChanging;
118 public event XmlNodeChangedEventHandler NodeInserted;
120 public event XmlNodeChangedEventHandler NodeInserting;
122 public event XmlNodeChangedEventHandler NodeRemoved;
124 public event XmlNodeChangedEventHandler NodeRemoving;
130 internal XmlAttribute NsNodeXml {
132 if (nsNodeXml == null) {
133 nsNodeXml = CreateAttribute ("xmlns", "xml", "http://www.w3.org/2000/xmlns/");
134 nsNodeXml.Value = "http://www.w3.org/XML/1998/namespace";
140 XmlLinkedNode IHasXmlChildNode.LastLinkedChild {
141 get { return lastLinkedChild; }
142 set { lastLinkedChild = value; }
145 public override string BaseURI {
151 public XmlElement DocumentElement {
153 XmlNode node = FirstChild;
155 while (node != null) {
156 if (node is XmlElement)
158 node = node.NextSibling;
161 return node != null ? node as XmlElement : null;
165 public virtual XmlDocumentType DocumentType {
167 for (XmlNode n = FirstChild; n != null; n = n.NextSibling) {
168 if (n.NodeType == XmlNodeType.DocumentType)
169 return (XmlDocumentType) n;
170 else if (n.NodeType == XmlNodeType.Element) // document element
178 public XmlImplementation Implementation {
179 get { return implementation; }
183 public override string InnerText {
184 set { throw new InvalidOperationException (); }
188 public override string InnerXml {
190 return base.InnerXml;
192 set { // reason for overriding
193 this.LoadXml (value);
197 public override bool IsReadOnly {
198 get { return false; }
201 internal bool IsStandalone {
203 return FirstChild != null &&
204 FirstChild.NodeType == XmlNodeType.XmlDeclaration &&
205 ((XmlDeclaration) this.FirstChild).Standalone == "yes";
209 public override string LocalName {
210 get { return "#document"; }
213 public override string Name {
214 get { return "#document"; }
217 internal XmlNameEntryCache NameCache {
218 get { return nameCache; }
221 public XmlNameTable NameTable {
222 get { return nameTable; }
225 public override XmlNodeType NodeType {
226 get { return XmlNodeType.Document; }
229 internal override XPathNodeType XPathNodeType {
231 return XPathNodeType.Root;
235 public override XmlDocument OwnerDocument {
239 public bool PreserveWhitespace {
240 get { return preserveWhitespace; }
241 set { preserveWhitespace = value; }
244 internal XmlResolver Resolver {
245 get { return resolver; }
248 internal override string XmlLang {
249 get { return String.Empty; }
252 public virtual XmlResolver XmlResolver {
253 set { resolver = value; }
256 internal override XmlSpace XmlSpace {
258 return XmlSpace.None;
262 internal Encoding TextEncoding {
264 XmlDeclaration dec = FirstChild as XmlDeclaration;
266 if (dec == null || dec.Encoding == "")
269 return Encoding.GetEncoding (dec.Encoding);
274 public override XmlNode ParentNode {
278 public XmlSchemaSet Schemas {
281 schemas = new XmlSchemaSet ();
284 set { schemas = value; }
287 public override IXmlSchemaInfo SchemaInfo {
288 get { return schemaInfo; }
289 internal set { schemaInfo = value; }
296 internal void AddIdenticalAttribute (XmlAttribute attr)
298 idTable [attr.Value] = attr;
301 public override XmlNode CloneNode (bool deep)
303 XmlDocument doc = implementation != null ? implementation.CreateDocument () : new XmlDocument ();
304 doc.baseURI = baseURI;
308 for (XmlNode n = FirstChild; n != null; n = n.NextSibling)
309 doc.AppendChild (doc.ImportNode (n, deep), false);
314 public XmlAttribute CreateAttribute (string name)
318 string namespaceURI = String.Empty;
320 ParseName (name, out prefix, out localName);
322 if (prefix == "xmlns" || (prefix == "" && localName == "xmlns"))
323 namespaceURI = XmlNamespaceManager.XmlnsXmlns;
324 else if (prefix == "xml")
325 namespaceURI = XmlNamespaceManager.XmlnsXml;
327 return CreateAttribute (prefix, localName, namespaceURI );
330 public XmlAttribute CreateAttribute (string qualifiedName, string namespaceURI)
335 ParseName (qualifiedName, out prefix, out localName);
337 return CreateAttribute (prefix, localName, namespaceURI);
340 public virtual XmlAttribute CreateAttribute (string prefix, string localName, string namespaceURI)
342 if ((localName == null) || (localName == String.Empty))
343 throw new ArgumentException ("The attribute local name cannot be empty.");
345 return new XmlAttribute (prefix, localName, namespaceURI, this, false, true);
348 internal XmlAttribute CreateAttribute (string prefix, string localName, string namespaceURI, bool atomizedNames, bool checkNamespace)
350 if (optimal_create_attribute)
351 return new XmlAttribute (prefix, localName, namespaceURI, this, atomizedNames, checkNamespace);
353 return CreateAttribute (prefix, localName, namespaceURI);
356 public virtual XmlCDataSection CreateCDataSection (string data)
358 return new XmlCDataSection (data, this);
361 public virtual XmlComment CreateComment (string data)
363 return new XmlComment (data, this);
366 protected internal virtual XmlAttribute CreateDefaultAttribute (string prefix, string localName, string namespaceURI)
368 XmlAttribute attr = CreateAttribute (prefix, localName, namespaceURI);
369 attr.isDefault = true;
373 public virtual XmlDocumentFragment CreateDocumentFragment ()
375 return new XmlDocumentFragment (this);
378 [PermissionSet (SecurityAction.InheritanceDemand, Unrestricted = true)]
379 public virtual XmlDocumentType CreateDocumentType (string name, string publicId,
380 string systemId, string internalSubset)
382 return new XmlDocumentType (name, publicId, systemId, internalSubset, this);
385 private XmlDocumentType CreateDocumentType (DTDObjectModel dtd)
387 return new XmlDocumentType (dtd, this);
390 public XmlElement CreateElement (string name)
392 return CreateElement (name, String.Empty);
395 public XmlElement CreateElement (
396 string qualifiedName,
402 ParseName (qualifiedName, out prefix, out localName);
404 return CreateElement (prefix, localName, namespaceURI);
407 public virtual XmlElement CreateElement (
412 // LAMESPEC: MS.NET has a weird behavior that they can Load() from XmlTextReader
413 // whose Namespaces = false, but their CreateElement() never allows qualified name.
414 // I leave it as it is.
415 return new XmlElement (prefix != null ? prefix : String.Empty, localName, namespaceURI != null ? namespaceURI : String.Empty, this, false);
418 internal XmlElement CreateElement (
424 if ((localName == null) || (localName == String.Empty))
425 throw new ArgumentException ("The local name for elements or attributes cannot be null or an empty string.");
426 if (optimal_create_element)
427 // LAMESPEC: MS.NET has a weird behavior that they can Load() from XmlTextReader
428 // whose Namespaces = false, but their CreateElement() never allows qualified name.
429 // I leave it as it is.
430 return new XmlElement (prefix != null ? prefix : String.Empty, localName, namespaceURI != null ? namespaceURI : String.Empty, this, nameAtomized);
432 return CreateElement (prefix, localName, namespaceURI);
435 public virtual XmlEntityReference CreateEntityReference (string name)
437 return new XmlEntityReference (name, this);
441 public override XPathNavigator CreateNavigator ()
443 return CreateNavigator (this);
447 protected internal virtual XPathNavigator CreateNavigator (XmlNode node)
450 return new XPathEditableDocument (node).CreateNavigator ();
452 return new XmlDocumentNavigator (node);
456 public virtual XmlNode CreateNode (
457 string nodeTypeString,
461 return CreateNode (GetNodeTypeFromString (nodeTypeString), name, namespaceURI);
464 public virtual XmlNode CreateNode (
469 string prefix = null;
470 string localName = name;
472 if ((type == XmlNodeType.Attribute) || (type == XmlNodeType.Element) || (type == XmlNodeType.EntityReference))
473 ParseName (name, out prefix, out localName);
475 return CreateNode (type, prefix, localName, namespaceURI);
478 public virtual XmlNode CreateNode (
485 case XmlNodeType.Attribute: return CreateAttribute (prefix, name, namespaceURI);
486 case XmlNodeType.CDATA: return CreateCDataSection (null);
487 case XmlNodeType.Comment: return CreateComment (null);
488 case XmlNodeType.Document: return new XmlDocument ();
489 case XmlNodeType.DocumentFragment: return CreateDocumentFragment ();
490 case XmlNodeType.DocumentType: return CreateDocumentType (null, null, null, null);
491 case XmlNodeType.Element: return CreateElement (prefix, name, namespaceURI);
492 case XmlNodeType.EntityReference: return CreateEntityReference (null);
493 case XmlNodeType.ProcessingInstruction: return CreateProcessingInstruction (null, null);
494 case XmlNodeType.SignificantWhitespace: return CreateSignificantWhitespace (String.Empty);
495 case XmlNodeType.Text: return CreateTextNode (null);
496 case XmlNodeType.Whitespace: return CreateWhitespace (String.Empty);
497 case XmlNodeType.XmlDeclaration: return CreateXmlDeclaration ("1.0", null, null);
500 throw new ArgumentException (
501 #else // makes less sense
502 throw new ArgumentOutOfRangeException (
504 String.Format("{0}\nParameter name: {1}",
505 "Specified argument was out of the range of valid values", type.ToString ()));
509 public virtual XmlProcessingInstruction CreateProcessingInstruction (
513 return new XmlProcessingInstruction (target, data, this);
516 public virtual XmlSignificantWhitespace CreateSignificantWhitespace (string text)
518 if (!XmlChar.IsWhitespace (text))
519 throw new ArgumentException ("Invalid whitespace characters.");
521 return new XmlSignificantWhitespace (text, this);
524 public virtual XmlText CreateTextNode (string text)
526 return new XmlText (text, this);
529 public virtual XmlWhitespace CreateWhitespace (string text)
531 if (!XmlChar.IsWhitespace (text))
532 throw new ArgumentException ("Invalid whitespace characters.");
534 return new XmlWhitespace (text, this);
537 public virtual XmlDeclaration CreateXmlDeclaration (string version, string encoding,
540 if (version != "1.0")
541 throw new ArgumentException ("version string is not correct.");
543 if ((standalone != null && standalone != String.Empty) && !((standalone == "yes") || (standalone == "no")))
544 throw new ArgumentException ("standalone string is not correct.");
546 return new XmlDeclaration (version, encoding, standalone, this);
549 // FIXME: Currently XmlAttributeCollection.SetNamedItem() does
550 // add to the identity table, but in fact I delayed identity
551 // check on GetIdenticalAttribute. To make such way complete,
552 // we have to use MultiMap, not Hashtable.
554 // Well, MS.NET is also fragile around here.
555 public virtual XmlElement GetElementById (string elementId)
557 XmlAttribute attr = GetIdenticalAttribute (elementId);
558 return attr != null ? attr.OwnerElement : null;
561 public virtual XmlNodeList GetElementsByTagName (string name)
563 ArrayList nodeArrayList = new ArrayList ();
564 this.SearchDescendantElements (name, name == "*", nodeArrayList);
565 return new XmlNodeArrayList (nodeArrayList);
568 public virtual XmlNodeList GetElementsByTagName (string localName, string namespaceURI)
570 ArrayList nodeArrayList = new ArrayList ();
571 this.SearchDescendantElements (localName, localName == "*", namespaceURI, namespaceURI == "*", nodeArrayList);
572 return new XmlNodeArrayList (nodeArrayList);
575 private XmlNodeType GetNodeTypeFromString (string nodeTypeString)
577 #if NET_2_0 // actually should be done in any version
578 if (nodeTypeString == null)
579 throw new ArgumentNullException ("nodeTypeString");
581 switch (nodeTypeString) {
582 case "attribute": return XmlNodeType.Attribute;
583 case "cdatasection": return XmlNodeType.CDATA;
584 case "comment": return XmlNodeType.Comment;
585 case "document": return XmlNodeType.Document;
586 case "documentfragment": return XmlNodeType.DocumentFragment;
587 case "documenttype": return XmlNodeType.DocumentType;
588 case "element": return XmlNodeType.Element;
589 case "entityreference": return XmlNodeType.EntityReference;
590 case "processinginstruction": return XmlNodeType.ProcessingInstruction;
591 case "significantwhitespace": return XmlNodeType.SignificantWhitespace;
592 case "text": return XmlNodeType.Text;
593 case "whitespace": return XmlNodeType.Whitespace;
595 throw new ArgumentException(String.Format("The string doesn't represent any node type : {0}.", nodeTypeString));
599 internal XmlAttribute GetIdenticalAttribute (string id)
601 XmlAttribute attr = this.idTable [id] as XmlAttribute;
604 if (attr.OwnerElement == null || !attr.OwnerElement.IsRooted) {
605 // idTable.Remove (id);
611 public virtual XmlNode ImportNode (XmlNode node, bool deep)
614 throw new NullReferenceException ("Null node cannot be imported.");
616 switch (node.NodeType) {
617 case XmlNodeType.Attribute:
618 XmlAttribute srcAtt = node as XmlAttribute;
619 XmlAttribute dstAtt = this.CreateAttribute (srcAtt.Prefix, srcAtt.LocalName, srcAtt.NamespaceURI);
620 for (XmlNode n = srcAtt.FirstChild; n != null; n = n.NextSibling)
621 dstAtt.AppendChild (this.ImportNode (n, deep));
624 case XmlNodeType.CDATA:
625 return this.CreateCDataSection (node.Value);
627 case XmlNodeType.Comment:
628 return this.CreateComment (node.Value);
630 case XmlNodeType.Document:
631 throw new XmlException ("Document cannot be imported.");
633 case XmlNodeType.DocumentFragment:
634 XmlDocumentFragment df = this.CreateDocumentFragment ();
636 for (XmlNode n = node.FirstChild; n != null; n = n.NextSibling)
637 df.AppendChild (this.ImportNode (n, deep));
640 case XmlNodeType.DocumentType:
641 return ((XmlDocumentType) node).CloneNode (deep);
643 case XmlNodeType.Element:
644 XmlElement src = (XmlElement)node;
645 XmlElement dst = this.CreateElement (src.Prefix, src.LocalName, src.NamespaceURI);
646 for (int i = 0; i < src.Attributes.Count; i++) {
647 XmlAttribute attr = src.Attributes [i];
648 if(attr.Specified) // copies only specified attributes
649 dst.SetAttributeNode ((XmlAttribute) this.ImportNode (attr, deep));
652 for (XmlNode n = src.FirstChild; n != null; n = n.NextSibling)
653 dst.AppendChild (this.ImportNode (n, deep));
656 case XmlNodeType.EndElement:
657 throw new XmlException ("Illegal ImportNode call for NodeType.EndElement");
658 case XmlNodeType.EndEntity:
659 throw new XmlException ("Illegal ImportNode call for NodeType.EndEntity");
661 case XmlNodeType.EntityReference:
662 return this.CreateEntityReference (node.Name);
664 case XmlNodeType.None:
665 throw new XmlException ("Illegal ImportNode call for NodeType.None");
667 case XmlNodeType.ProcessingInstruction:
668 XmlProcessingInstruction pi = node as XmlProcessingInstruction;
669 return this.CreateProcessingInstruction (pi.Target, pi.Data);
671 case XmlNodeType.SignificantWhitespace:
672 return this.CreateSignificantWhitespace (node.Value);
674 case XmlNodeType.Text:
675 return this.CreateTextNode (node.Value);
677 case XmlNodeType.Whitespace:
678 return this.CreateWhitespace (node.Value);
680 case XmlNodeType.XmlDeclaration:
681 XmlDeclaration srcDecl = node as XmlDeclaration;
682 return this.CreateXmlDeclaration (srcDecl.Version, srcDecl.Encoding, srcDecl.Standalone);
685 throw new InvalidOperationException ("Cannot import specified node type: " + node.NodeType);
689 public virtual void Load (Stream inStream)
691 XmlTextReader reader = new XmlTextReader (inStream, NameTable);
692 reader.XmlResolver = resolver;
693 XmlValidatingReader vr = new XmlValidatingReader (reader);
694 vr.EntityHandling = EntityHandling.ExpandCharEntities;
695 vr.ValidationType = ValidationType.None;
699 public virtual void Load (string filename)
701 XmlTextReader xr = null;
703 xr = new XmlTextReader (filename, NameTable);
704 xr.XmlResolver = resolver;
705 XmlValidatingReader vr = new XmlValidatingReader (xr);
706 vr.EntityHandling = EntityHandling.ExpandCharEntities;
707 vr.ValidationType = ValidationType.None;
715 public virtual void Load (TextReader txtReader)
717 XmlTextReader xr = new XmlTextReader (txtReader, NameTable);
718 XmlValidatingReader vr = new XmlValidatingReader (xr);
719 vr.EntityHandling = EntityHandling.ExpandCharEntities;
720 vr.ValidationType = ValidationType.None;
721 xr.XmlResolver = resolver;
725 public virtual void Load (XmlReader xmlReader)
727 // Reset our document
728 // For now this just means removing all our children but later this
729 // may turn out o need to call a private method that resets other things
730 // like properties we have, etc.
733 this.baseURI = xmlReader.BaseURI;
734 // create all contents with use of ReadNode()
738 XmlNode n = ReadNode (xmlReader);
741 if (preserveWhitespace || n.NodeType != XmlNodeType.Whitespace)
742 AppendChild (n, false);
743 } while (xmlReader.NodeType != XmlNodeType.EndElement);
745 if (xmlReader.Settings != null)
746 schemas = xmlReader.Settings.Schemas;
753 public virtual void LoadXml (string xml)
755 XmlTextReader xmlReader = new XmlTextReader (
757 XmlNodeType.Document,
758 new XmlParserContext (NameTable, new XmlNamespaceManager (NameTable), null, XmlSpace.None));
760 xmlReader.XmlResolver = resolver;
767 internal void onNodeChanged (XmlNode node, XmlNode parent, string oldValue, string newValue)
769 if (NodeChanged != null)
770 NodeChanged (node, new XmlNodeChangedEventArgs
771 (node, parent, parent, oldValue, newValue, XmlNodeChangedAction.Change));
774 internal void onNodeChanging(XmlNode node, XmlNode parent, string oldValue, string newValue)
777 throw new ArgumentException ("Node is read-only.");
778 if (NodeChanging != null)
779 NodeChanging (node, new XmlNodeChangedEventArgs
780 (node, parent, parent, oldValue, newValue, XmlNodeChangedAction.Change));
783 internal void onNodeInserted (XmlNode node, XmlNode newParent)
785 if (NodeInserted != null)
786 NodeInserted (node, new XmlNodeChangedEventArgs
787 (node, null, newParent, null, null, XmlNodeChangedAction.Insert));
790 internal void onNodeInserting (XmlNode node, XmlNode newParent)
792 if (NodeInserting != null)
793 NodeInserting (node, new XmlNodeChangedEventArgs
794 (node, null, newParent, null, null, XmlNodeChangedAction.Insert));
797 internal void onNodeRemoved (XmlNode node, XmlNode oldParent)
799 if (NodeRemoved != null)
800 NodeRemoved (node, new XmlNodeChangedEventArgs
801 (node, oldParent, null, null, null, XmlNodeChangedAction.Remove));
804 internal void onNodeRemoving (XmlNode node, XmlNode oldParent)
806 if (NodeRemoving != null)
807 NodeRemoving (node, new XmlNodeChangedEventArgs
808 (node, oldParent, null, null, null, XmlNodeChangedAction.Remove));
811 private void ParseName (string name, out string prefix, out string localName)
813 int indexOfColon = name.IndexOf (':');
815 if (indexOfColon != -1) {
816 prefix = name.Substring (0, indexOfColon);
817 localName = name.Substring (indexOfColon + 1);
824 // Reads XmlReader and creates Attribute Node.
825 private XmlAttribute ReadAttributeNode (XmlReader reader)
827 if (reader.NodeType == XmlNodeType.Element)
828 reader.MoveToFirstAttribute ();
829 else if (reader.NodeType != XmlNodeType.Attribute)
830 throw new InvalidOperationException (MakeReaderErrorMessage ("bad position to read attribute.", reader));
831 XmlAttribute attribute = CreateAttribute (reader.Prefix, reader.LocalName, reader.NamespaceURI);
833 if (reader.SchemaInfo != null)
834 SchemaInfo = reader.SchemaInfo;
836 bool isDefault = reader.IsDefault;
838 ReadAttributeNodeValue (reader, attribute);
841 attribute.SetDefault ();
846 // Reads attribute from XmlReader and then creates attribute value children. XmlAttribute also uses this.
847 internal void ReadAttributeNodeValue (XmlReader reader, XmlAttribute attribute)
849 while (reader.ReadAttributeValue ()) {
850 if (reader.NodeType == XmlNodeType.EntityReference)
851 attribute.AppendChild (CreateEntityReference (reader.Name), false); // omit node type check
853 // Children of Attribute is restricted to CharacterData and EntityReference (Comment is not allowed).
854 attribute.AppendChild (CreateTextNode (reader.Value), false); // omit node type check
858 [PermissionSet (SecurityAction.InheritanceDemand, Unrestricted = true)]
859 public virtual XmlNode ReadNode (XmlReader reader)
861 if (PreserveWhitespace)
862 return ReadNodeCore (reader);
863 XmlTextReader xtr = reader as XmlTextReader;
864 if (xtr != null && xtr.WhitespaceHandling ==
865 WhitespaceHandling.All) {
867 xtr.WhitespaceHandling = WhitespaceHandling.Significant;
868 return ReadNodeCore (reader);
870 xtr.WhitespaceHandling = WhitespaceHandling.All;
874 return ReadNodeCore (reader);
877 XmlNode ReadNodeCore (XmlReader reader)
879 switch (reader.ReadState) {
880 case ReadState.Interactive:
882 case ReadState.Initial:
884 if (reader.SchemaInfo != null)
885 SchemaInfo = reader.SchemaInfo;
894 switch (reader.NodeType) {
896 case XmlNodeType.Attribute:
897 string localName = reader.LocalName;
898 string ns = reader.NamespaceURI;
899 n = ReadAttributeNode (reader);
900 // Keep the current reader position on attribute.
901 reader.MoveToAttribute (localName, ns);
904 case XmlNodeType.CDATA:
905 n = CreateCDataSection (reader.Value);
908 case XmlNodeType.Comment:
909 n = CreateComment (reader.Value);
912 case XmlNodeType.Element:
913 XmlElement element = CreateElement (reader.Prefix, reader.LocalName, reader.NamespaceURI, reader.NameTable == this.NameTable);
915 if (reader.SchemaInfo != null)
916 SchemaInfo = reader.SchemaInfo;
918 element.IsEmpty = reader.IsEmptyElement;
920 // set the element's attributes.
921 for (int i = 0; i < reader.AttributeCount; i++) {
922 reader.MoveToAttribute (i);
923 element.SetAttributeNode (
924 ReadAttributeNode (reader));
925 reader.MoveToElement ();
927 // FIXME: the code below should be fine and
928 // in some XmlReaders it is much faster, but
929 // caused some breakage in sys.data test.
931 if (reader.MoveToFirstAttribute ()) {
933 element.SetAttributeNode (ReadAttributeNode (reader));
934 } while (reader.MoveToNextAttribute ());
935 reader.MoveToElement ();
938 reader.MoveToElement ();
940 int depth = reader.Depth;
942 if (reader.IsEmptyElement) {
948 while (reader.Depth > depth) {
949 n = ReadNodeCore (reader);
950 if (preserveWhitespace || n.NodeType != XmlNodeType.Whitespace)
951 element.AppendChild (n, false);
956 case XmlNodeType.ProcessingInstruction:
957 n = CreateProcessingInstruction (reader.Name, reader.Value);
960 case XmlNodeType.Text:
961 n = CreateTextNode (reader.Value);
964 case XmlNodeType.XmlDeclaration:
965 n = CreateXmlDeclaration ("1.0" , String.Empty, String.Empty);
966 n.Value = reader.Value;
969 case XmlNodeType.DocumentType:
970 DTDObjectModel dtd = null;
971 IHasXmlParserContext ctxReader = reader as IHasXmlParserContext;
972 if (ctxReader != null)
973 dtd = ctxReader.ParserContext.Dtd;
976 n = CreateDocumentType (dtd);
978 n = CreateDocumentType (reader.Name, reader ["PUBLIC"], reader ["SYSTEM"], reader.Value);
981 case XmlNodeType.EntityReference:
982 if (this.loadMode && this.DocumentType != null &&
983 DocumentType.Entities.GetNamedItem (reader.Name) == null)
984 throw new XmlException ("Reference to undeclared entity was found.");
986 n = CreateEntityReference (reader.Name);
987 // IF argument XmlReader can resolve entity,
988 // ReadNode() also fills children _from it_.
989 // In this case, it is not from doctype node.
990 // (it is kind of sucky design, but it happens
991 // anyways when we modify doctype node).
993 // It does not happen when !CanResolveEntity.
994 // (In such case AppendChild() will resolve
995 // entity content, as XmlEntityReference does.)
996 if (reader.CanResolveEntity)
998 reader.ResolveEntity ();
1000 for (XmlNode child; reader.NodeType != XmlNodeType.EndEntity && (child = ReadNode (reader)) != null;)
1001 n.InsertBefore (child, null, false, false);
1005 case XmlNodeType.SignificantWhitespace:
1006 n = CreateSignificantWhitespace (reader.Value);
1009 case XmlNodeType.Whitespace:
1010 n = CreateWhitespace (reader.Value);
1013 case XmlNodeType.None:
1017 // No idea why MS does throw NullReferenceException ;-P
1018 throw new NullReferenceException ("Unexpected node type " + reader.NodeType + ".");
1025 private string MakeReaderErrorMessage (string message, XmlReader reader)
1027 IXmlLineInfo li = reader as IXmlLineInfo;
1029 return String.Format (CultureInfo.InvariantCulture, "{0} Line number = {1}, Inline position = {2}.", message, li.LineNumber, li.LinePosition);
1034 internal void RemoveIdenticalAttribute (string id)
1036 idTable.Remove (id);
1039 public virtual void Save (Stream outStream)
1041 XmlTextWriter xmlWriter = new XmlTextWriter (outStream, TextEncoding);
1042 if (!PreserveWhitespace)
1043 xmlWriter.Formatting = Formatting.Indented;
1044 WriteContentTo (xmlWriter);
1048 public virtual void Save (string filename)
1050 XmlTextWriter xmlWriter = new XmlTextWriter (filename, TextEncoding);
1052 if (!PreserveWhitespace)
1053 xmlWriter.Formatting = Formatting.Indented;
1054 WriteContentTo (xmlWriter);
1060 public virtual void Save (TextWriter writer)
1062 XmlTextWriter xmlWriter = new XmlTextWriter (writer);
1063 if (!PreserveWhitespace)
1064 xmlWriter.Formatting = Formatting.Indented;
1065 if (FirstChild != null && FirstChild.NodeType != XmlNodeType.XmlDeclaration)
1066 xmlWriter.WriteStartDocument ();
1067 WriteContentTo (xmlWriter);
1068 xmlWriter.WriteEndDocument ();
1072 public virtual void Save (XmlWriter xmlWriter)
1075 // This should preserve white space if PreserveWhiteSpace is true
1077 bool autoXmlDecl = FirstChild != null && FirstChild.NodeType != XmlNodeType.XmlDeclaration;
1079 xmlWriter.WriteStartDocument ();
1080 WriteContentTo (xmlWriter);
1082 xmlWriter.WriteEndDocument ();
1086 public override void WriteContentTo (XmlWriter w)
1088 for (XmlNode n = FirstChild; n != null; n = n.NextSibling)
1092 public override void WriteTo (XmlWriter w)
1097 private void AddDefaultNameTableKeys ()
1099 // The following keys are default of MS .NET Framework
1100 nameTable.Add ("#text");
1101 nameTable.Add ("xml");
1102 nameTable.Add ("xmlns");
1103 nameTable.Add ("#entity");
1104 nameTable.Add ("#document-fragment");
1105 nameTable.Add ("#comment");
1106 nameTable.Add ("space");
1107 nameTable.Add ("id");
1108 nameTable.Add ("#whitespace");
1109 nameTable.Add ("http://www.w3.org/2000/xmlns/");
1110 nameTable.Add ("#cdata-section");
1111 nameTable.Add ("lang");
1112 nameTable.Add ("#document");
1113 nameTable.Add ("#significant-whitespace");
1116 internal void CheckIdTableUpdate (XmlAttribute attr, string oldValue, string newValue)
1118 if (idTable [oldValue] == attr) {
1119 idTable.Remove (oldValue);
1120 idTable [newValue] = attr;
1125 public void Validate (ValidationEventHandler handler)
1127 Validate (handler, this,
1128 XmlSchemaValidationFlags.ProcessIdentityConstraints);
1131 public void Validate (ValidationEventHandler handler,
1134 Validate (handler, node,
1135 XmlSchemaValidationFlags.ProcessIdentityConstraints);
1138 private void Validate (ValidationEventHandler handler,
1139 XmlNode node, XmlSchemaValidationFlags flags)
1141 XmlReaderSettings settings = new XmlReaderSettings ();
1142 settings.NameTable = NameTable;
1143 settings.Schemas = schemas;
1144 settings.Schemas.XmlResolver = resolver;
1145 settings.XmlResolver = resolver;
1146 settings.ValidationFlags = flags;
1147 settings.ValidationType = ValidationType.Schema;
1148 XmlReader r = XmlReader.Create (
1149 new XmlNodeReader (node), settings);