1157 lines
33 KiB
C#
1157 lines
33 KiB
C#
//
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// System.Xml.XmlDocument
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//
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// Authors:
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// Daniel Weber (daniel-weber@austin.rr.com)
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// Kral Ferch <kral_ferch@hotmail.com>
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// Jason Diamond <jason@injektilo.org>
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// Miguel de Icaza (miguel@ximian.com)
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// Duncan Mak (duncan@ximian.com)
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// Atsushi Enomoto (ginga@kit.hi-ho.ne.jp)
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//
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// (C) 2001 Daniel Weber
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// (C) 2002 Kral Ferch, Jason Diamond, Miguel de Icaza, Duncan Mak,
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// Atsushi Enomoto
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// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System.Globalization;
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using System.IO;
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using System.Security.Permissions;
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using System.Text;
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using System.Xml.XPath;
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using System.Diagnostics;
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using System.Collections;
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using Mono.Xml;
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#if NET_2_0
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using System.Xml.Schema;
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using Mono.Xml.XPath;
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#endif
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namespace System.Xml
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{
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public class XmlDocument : XmlNode, IHasXmlChildNode
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{
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#region Fields
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static readonly Type [] optimal_create_types = new Type [] {typeof (string), typeof (string), typeof (string)};
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bool optimal_create_element, optimal_create_attribute;
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XmlNameTable nameTable;
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string baseURI = String.Empty;
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XmlImplementation implementation;
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bool preserveWhitespace = false;
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XmlResolver resolver;
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Hashtable idTable = new Hashtable ();
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XmlNameEntryCache nameCache;
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XmlLinkedNode lastLinkedChild;
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XmlAttribute nsNodeXml;
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#if NET_2_0
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XmlSchemaSet schemas;
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IXmlSchemaInfo schemaInfo;
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#endif
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// MS.NET rejects undeclared entities _only_ during Load(),
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// while ReadNode() never rejects such node. So it signs
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// whether we are on Load() or not (MS.NET uses Loader class,
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// but we don't have to implement Load() as such)
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bool loadMode;
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#endregion
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#region Constructors
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public XmlDocument () : this (null, null)
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{
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}
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protected internal XmlDocument (XmlImplementation imp) : this (imp, null)
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{
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}
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public XmlDocument (XmlNameTable nt) : this (null, nt)
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{
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}
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XmlDocument (XmlImplementation impl, XmlNameTable nt) : base (null)
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{
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if (impl == null)
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implementation = new XmlImplementation ();
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else
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implementation = impl;
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nameTable = (nt != null) ? nt : implementation.InternalNameTable;
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nameCache = new XmlNameEntryCache (nameTable);
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AddDefaultNameTableKeys ();
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resolver = new XmlUrlResolver ();
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Type type = GetType ();
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optimal_create_element = type.GetMethod ("CreateElement", optimal_create_types).DeclaringType == typeof (XmlDocument);
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optimal_create_attribute = type.GetMethod ("CreateAttribute", optimal_create_types).DeclaringType == typeof (XmlDocument);
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}
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#endregion
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#region Events
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public event XmlNodeChangedEventHandler NodeChanged;
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public event XmlNodeChangedEventHandler NodeChanging;
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public event XmlNodeChangedEventHandler NodeInserted;
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public event XmlNodeChangedEventHandler NodeInserting;
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public event XmlNodeChangedEventHandler NodeRemoved;
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public event XmlNodeChangedEventHandler NodeRemoving;
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#endregion
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#region Properties
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internal XmlAttribute NsNodeXml {
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get {
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if (nsNodeXml == null) {
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nsNodeXml = CreateAttribute ("xmlns", "xml", "http://www.w3.org/2000/xmlns/");
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nsNodeXml.Value = "http://www.w3.org/XML/1998/namespace";
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}
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return nsNodeXml;
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}
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}
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XmlLinkedNode IHasXmlChildNode.LastLinkedChild {
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get { return lastLinkedChild; }
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set { lastLinkedChild = value; }
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}
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public override string BaseURI {
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get {
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return baseURI;
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}
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}
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public XmlElement DocumentElement {
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get {
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XmlNode node = FirstChild;
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while (node != null) {
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if (node is XmlElement)
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break;
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node = node.NextSibling;
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}
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return node != null ? node as XmlElement : null;
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}
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}
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public virtual XmlDocumentType DocumentType {
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get {
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for (XmlNode n = FirstChild; n != null; n = n.NextSibling) {
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if (n.NodeType == XmlNodeType.DocumentType)
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return (XmlDocumentType) n;
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else if (n.NodeType == XmlNodeType.Element) // document element
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return null;
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}
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return null;
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}
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}
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public XmlImplementation Implementation {
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get { return implementation; }
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}
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#if NET_4_0
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public override string InnerText {
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set { throw new InvalidOperationException (); }
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}
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#endif
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public override string InnerXml {
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get {
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return base.InnerXml;
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}
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set { // reason for overriding
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this.LoadXml (value);
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}
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}
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public override bool IsReadOnly {
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get { return false; }
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}
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internal bool IsStandalone {
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get {
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return FirstChild != null &&
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FirstChild.NodeType == XmlNodeType.XmlDeclaration &&
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((XmlDeclaration) this.FirstChild).Standalone == "yes";
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}
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}
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public override string LocalName {
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get { return "#document"; }
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}
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public override string Name {
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get { return "#document"; }
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}
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internal XmlNameEntryCache NameCache {
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get { return nameCache; }
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}
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public XmlNameTable NameTable {
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get { return nameTable; }
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}
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public override XmlNodeType NodeType {
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get { return XmlNodeType.Document; }
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}
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internal override XPathNodeType XPathNodeType {
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get {
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return XPathNodeType.Root;
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}
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}
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public override XmlDocument OwnerDocument {
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get { return null; }
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}
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public bool PreserveWhitespace {
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get { return preserveWhitespace; }
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set { preserveWhitespace = value; }
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}
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internal XmlResolver Resolver {
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get { return resolver; }
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}
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internal override string XmlLang {
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get { return String.Empty; }
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}
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public virtual XmlResolver XmlResolver {
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set { resolver = value; }
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}
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internal override XmlSpace XmlSpace {
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get {
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return XmlSpace.None;
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}
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}
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internal Encoding TextEncoding {
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get {
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XmlDeclaration dec = FirstChild as XmlDeclaration;
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if (dec == null || dec.Encoding == "")
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return null;
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return Encoding.GetEncoding (dec.Encoding);
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}
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}
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#if NET_2_0
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public override XmlNode ParentNode {
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get { return null; }
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}
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public XmlSchemaSet Schemas {
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get {
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if (schemas == null)
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schemas = new XmlSchemaSet ();
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return schemas;
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}
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set { schemas = value; }
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}
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public override IXmlSchemaInfo SchemaInfo {
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get { return schemaInfo; }
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internal set { schemaInfo = value; }
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}
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#endif
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#endregion
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#region Methods
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internal void AddIdenticalAttribute (XmlAttribute attr)
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{
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idTable [attr.Value] = attr;
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}
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public override XmlNode CloneNode (bool deep)
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{
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XmlDocument doc = implementation != null ? implementation.CreateDocument () : new XmlDocument ();
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doc.baseURI = baseURI;
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if(deep)
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{
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for (XmlNode n = FirstChild; n != null; n = n.NextSibling)
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doc.AppendChild (doc.ImportNode (n, deep), false);
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}
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return doc;
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}
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public XmlAttribute CreateAttribute (string name)
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{
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string prefix;
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string localName;
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string namespaceURI = String.Empty;
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ParseName (name, out prefix, out localName);
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if (prefix == "xmlns" || (prefix == "" && localName == "xmlns"))
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namespaceURI = XmlNamespaceManager.XmlnsXmlns;
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else if (prefix == "xml")
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namespaceURI = XmlNamespaceManager.XmlnsXml;
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return CreateAttribute (prefix, localName, namespaceURI );
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}
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public XmlAttribute CreateAttribute (string qualifiedName, string namespaceURI)
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{
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string prefix;
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string localName;
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ParseName (qualifiedName, out prefix, out localName);
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return CreateAttribute (prefix, localName, namespaceURI);
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}
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public virtual XmlAttribute CreateAttribute (string prefix, string localName, string namespaceURI)
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{
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if ((localName == null) || (localName == String.Empty))
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throw new ArgumentException ("The attribute local name cannot be empty.");
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return new XmlAttribute (prefix, localName, namespaceURI, this, false, true);
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}
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internal XmlAttribute CreateAttribute (string prefix, string localName, string namespaceURI, bool atomizedNames, bool checkNamespace)
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{
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if (optimal_create_attribute)
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return new XmlAttribute (prefix, localName, namespaceURI, this, atomizedNames, checkNamespace);
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else
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return CreateAttribute (prefix, localName, namespaceURI);
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}
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public virtual XmlCDataSection CreateCDataSection (string data)
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{
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return new XmlCDataSection (data, this);
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}
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public virtual XmlComment CreateComment (string data)
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{
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return new XmlComment (data, this);
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}
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protected internal virtual XmlAttribute CreateDefaultAttribute (string prefix, string localName, string namespaceURI)
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{
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XmlAttribute attr = CreateAttribute (prefix, localName, namespaceURI);
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attr.isDefault = true;
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return attr;
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}
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public virtual XmlDocumentFragment CreateDocumentFragment ()
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{
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return new XmlDocumentFragment (this);
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}
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[PermissionSet (SecurityAction.InheritanceDemand, Unrestricted = true)]
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public virtual XmlDocumentType CreateDocumentType (string name, string publicId,
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string systemId, string internalSubset)
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{
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return new XmlDocumentType (name, publicId, systemId, internalSubset, this);
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}
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private XmlDocumentType CreateDocumentType (DTDObjectModel dtd)
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{
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return new XmlDocumentType (dtd, this);
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}
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public XmlElement CreateElement (string name)
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{
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return CreateElement (name, String.Empty);
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}
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public XmlElement CreateElement (
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string qualifiedName,
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string namespaceURI)
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{
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string prefix;
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string localName;
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ParseName (qualifiedName, out prefix, out localName);
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return CreateElement (prefix, localName, namespaceURI);
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}
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public virtual XmlElement CreateElement (
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string prefix,
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string localName,
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string namespaceURI)
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{
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// LAMESPEC: MS.NET has a weird behavior that they can Load() from XmlTextReader
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// whose Namespaces = false, but their CreateElement() never allows qualified name.
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// I leave it as it is.
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return new XmlElement (prefix != null ? prefix : String.Empty, localName, namespaceURI != null ? namespaceURI : String.Empty, this, false);
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}
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internal XmlElement CreateElement (
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string prefix,
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string localName,
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string namespaceURI,
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bool nameAtomized)
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{
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if ((localName == null) || (localName == String.Empty))
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throw new ArgumentException ("The local name for elements or attributes cannot be null or an empty string.");
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if (optimal_create_element)
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// LAMESPEC: MS.NET has a weird behavior that they can Load() from XmlTextReader
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// whose Namespaces = false, but their CreateElement() never allows qualified name.
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// I leave it as it is.
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return new XmlElement (prefix != null ? prefix : String.Empty, localName, namespaceURI != null ? namespaceURI : String.Empty, this, nameAtomized);
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else
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return CreateElement (prefix, localName, namespaceURI);
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}
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public virtual XmlEntityReference CreateEntityReference (string name)
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{
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return new XmlEntityReference (name, this);
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}
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#if NET_2_0
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public override XPathNavigator CreateNavigator ()
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{
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return CreateNavigator (this);
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}
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#endif
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protected internal virtual XPathNavigator CreateNavigator (XmlNode node)
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{
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#if NET_2_0
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return new XPathEditableDocument (node).CreateNavigator ();
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#else
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return new XmlDocumentNavigator (node);
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#endif
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}
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public virtual XmlNode CreateNode (
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string nodeTypeString,
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string name,
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string namespaceURI)
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{
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return CreateNode (GetNodeTypeFromString (nodeTypeString), name, namespaceURI);
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}
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public virtual XmlNode CreateNode (
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XmlNodeType type,
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string name,
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string namespaceURI)
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{
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string prefix = null;
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string localName = name;
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if ((type == XmlNodeType.Attribute) || (type == XmlNodeType.Element) || (type == XmlNodeType.EntityReference))
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ParseName (name, out prefix, out localName);
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return CreateNode (type, prefix, localName, namespaceURI);
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}
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public virtual XmlNode CreateNode (
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XmlNodeType type,
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string prefix,
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string name,
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string namespaceURI)
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{
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switch (type) {
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case XmlNodeType.Attribute: return CreateAttribute (prefix, name, namespaceURI);
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case XmlNodeType.CDATA: return CreateCDataSection (null);
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case XmlNodeType.Comment: return CreateComment (null);
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case XmlNodeType.Document: return new XmlDocument ();
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case XmlNodeType.DocumentFragment: return CreateDocumentFragment ();
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case XmlNodeType.DocumentType: return CreateDocumentType (null, null, null, null);
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case XmlNodeType.Element: return CreateElement (prefix, name, namespaceURI);
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case XmlNodeType.EntityReference: return CreateEntityReference (null);
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case XmlNodeType.ProcessingInstruction: return CreateProcessingInstruction (null, null);
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case XmlNodeType.SignificantWhitespace: return CreateSignificantWhitespace (String.Empty);
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case XmlNodeType.Text: return CreateTextNode (null);
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case XmlNodeType.Whitespace: return CreateWhitespace (String.Empty);
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case XmlNodeType.XmlDeclaration: return CreateXmlDeclaration ("1.0", null, null);
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default:
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#if NET_2_0
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throw new ArgumentException (
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#else // makes less sense
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throw new ArgumentOutOfRangeException (
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#endif
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String.Format("{0}\nParameter name: {1}",
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"Specified argument was out of the range of valid values", type.ToString ()));
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}
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}
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public virtual XmlProcessingInstruction CreateProcessingInstruction (
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string target,
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string data)
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{
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return new XmlProcessingInstruction (target, data, this);
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}
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public virtual XmlSignificantWhitespace CreateSignificantWhitespace (string text)
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{
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if (!XmlChar.IsWhitespace (text))
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throw new ArgumentException ("Invalid whitespace characters.");
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return new XmlSignificantWhitespace (text, this);
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}
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public virtual XmlText CreateTextNode (string text)
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{
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return new XmlText (text, this);
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}
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public virtual XmlWhitespace CreateWhitespace (string text)
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{
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if (!XmlChar.IsWhitespace (text))
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throw new ArgumentException ("Invalid whitespace characters.");
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return new XmlWhitespace (text, this);
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}
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public virtual XmlDeclaration CreateXmlDeclaration (string version, string encoding,
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string standalone)
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{
|
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if (version != "1.0")
|
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throw new ArgumentException ("version string is not correct.");
|
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if ((standalone != null && standalone != String.Empty) && !((standalone == "yes") || (standalone == "no")))
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throw new ArgumentException ("standalone string is not correct.");
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return new XmlDeclaration (version, encoding, standalone, this);
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}
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// FIXME: Currently XmlAttributeCollection.SetNamedItem() does
|
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// add to the identity table, but in fact I delayed identity
|
|
// check on GetIdenticalAttribute. To make such way complete,
|
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// we have to use MultiMap, not Hashtable.
|
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//
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// Well, MS.NET is also fragile around here.
|
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public virtual XmlElement GetElementById (string elementId)
|
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{
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XmlAttribute attr = GetIdenticalAttribute (elementId);
|
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return attr != null ? attr.OwnerElement : null;
|
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}
|
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|
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public virtual XmlNodeList GetElementsByTagName (string name)
|
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{
|
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ArrayList nodeArrayList = new ArrayList ();
|
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this.SearchDescendantElements (name, name == "*", nodeArrayList);
|
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return new XmlNodeArrayList (nodeArrayList);
|
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}
|
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|
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public virtual XmlNodeList GetElementsByTagName (string localName, string namespaceURI)
|
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{
|
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ArrayList nodeArrayList = new ArrayList ();
|
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this.SearchDescendantElements (localName, localName == "*", namespaceURI, namespaceURI == "*", nodeArrayList);
|
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return new XmlNodeArrayList (nodeArrayList);
|
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}
|
|
|
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private XmlNodeType GetNodeTypeFromString (string nodeTypeString)
|
|
{
|
|
#if NET_2_0 // actually should be done in any version
|
|
if (nodeTypeString == null)
|
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throw new ArgumentNullException ("nodeTypeString");
|
|
#endif
|
|
switch (nodeTypeString) {
|
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case "attribute": return XmlNodeType.Attribute;
|
|
case "cdatasection": return XmlNodeType.CDATA;
|
|
case "comment": return XmlNodeType.Comment;
|
|
case "document": return XmlNodeType.Document;
|
|
case "documentfragment": return XmlNodeType.DocumentFragment;
|
|
case "documenttype": return XmlNodeType.DocumentType;
|
|
case "element": return XmlNodeType.Element;
|
|
case "entityreference": return XmlNodeType.EntityReference;
|
|
case "processinginstruction": return XmlNodeType.ProcessingInstruction;
|
|
case "significantwhitespace": return XmlNodeType.SignificantWhitespace;
|
|
case "text": return XmlNodeType.Text;
|
|
case "whitespace": return XmlNodeType.Whitespace;
|
|
default:
|
|
throw new ArgumentException(String.Format("The string doesn't represent any node type : {0}.", nodeTypeString));
|
|
}
|
|
}
|
|
|
|
internal XmlAttribute GetIdenticalAttribute (string id)
|
|
{
|
|
XmlAttribute attr = this.idTable [id] as XmlAttribute;
|
|
if (attr == null)
|
|
return null;
|
|
if (attr.OwnerElement == null || !attr.OwnerElement.IsRooted) {
|
|
// idTable.Remove (id);
|
|
return null;
|
|
}
|
|
return attr;
|
|
}
|
|
|
|
public virtual XmlNode ImportNode (XmlNode node, bool deep)
|
|
{
|
|
if (node == null)
|
|
throw new NullReferenceException ("Null node cannot be imported.");
|
|
|
|
switch (node.NodeType) {
|
|
case XmlNodeType.Attribute:
|
|
XmlAttribute srcAtt = node as XmlAttribute;
|
|
XmlAttribute dstAtt = this.CreateAttribute (srcAtt.Prefix, srcAtt.LocalName, srcAtt.NamespaceURI);
|
|
for (XmlNode n = srcAtt.FirstChild; n != null; n = n.NextSibling)
|
|
dstAtt.AppendChild (this.ImportNode (n, deep));
|
|
return dstAtt;
|
|
|
|
case XmlNodeType.CDATA:
|
|
return this.CreateCDataSection (node.Value);
|
|
|
|
case XmlNodeType.Comment:
|
|
return this.CreateComment (node.Value);
|
|
|
|
case XmlNodeType.Document:
|
|
throw new XmlException ("Document cannot be imported.");
|
|
|
|
case XmlNodeType.DocumentFragment:
|
|
XmlDocumentFragment df = this.CreateDocumentFragment ();
|
|
if(deep)
|
|
for (XmlNode n = node.FirstChild; n != null; n = n.NextSibling)
|
|
df.AppendChild (this.ImportNode (n, deep));
|
|
return df;
|
|
|
|
case XmlNodeType.DocumentType:
|
|
return ((XmlDocumentType) node).CloneNode (deep);
|
|
|
|
case XmlNodeType.Element:
|
|
XmlElement src = (XmlElement)node;
|
|
XmlElement dst = this.CreateElement (src.Prefix, src.LocalName, src.NamespaceURI);
|
|
for (int i = 0; i < src.Attributes.Count; i++) {
|
|
XmlAttribute attr = src.Attributes [i];
|
|
if(attr.Specified) // copies only specified attributes
|
|
dst.SetAttributeNode ((XmlAttribute) this.ImportNode (attr, deep));
|
|
}
|
|
if(deep)
|
|
for (XmlNode n = src.FirstChild; n != null; n = n.NextSibling)
|
|
dst.AppendChild (this.ImportNode (n, deep));
|
|
return dst;
|
|
|
|
case XmlNodeType.EndElement:
|
|
throw new XmlException ("Illegal ImportNode call for NodeType.EndElement");
|
|
case XmlNodeType.EndEntity:
|
|
throw new XmlException ("Illegal ImportNode call for NodeType.EndEntity");
|
|
|
|
case XmlNodeType.EntityReference:
|
|
return this.CreateEntityReference (node.Name);
|
|
|
|
case XmlNodeType.None:
|
|
throw new XmlException ("Illegal ImportNode call for NodeType.None");
|
|
|
|
case XmlNodeType.ProcessingInstruction:
|
|
XmlProcessingInstruction pi = node as XmlProcessingInstruction;
|
|
return this.CreateProcessingInstruction (pi.Target, pi.Data);
|
|
|
|
case XmlNodeType.SignificantWhitespace:
|
|
return this.CreateSignificantWhitespace (node.Value);
|
|
|
|
case XmlNodeType.Text:
|
|
return this.CreateTextNode (node.Value);
|
|
|
|
case XmlNodeType.Whitespace:
|
|
return this.CreateWhitespace (node.Value);
|
|
|
|
case XmlNodeType.XmlDeclaration:
|
|
XmlDeclaration srcDecl = node as XmlDeclaration;
|
|
return this.CreateXmlDeclaration (srcDecl.Version, srcDecl.Encoding, srcDecl.Standalone);
|
|
|
|
default:
|
|
throw new InvalidOperationException ("Cannot import specified node type: " + node.NodeType);
|
|
}
|
|
}
|
|
|
|
public virtual void Load (Stream inStream)
|
|
{
|
|
XmlTextReader reader = new XmlTextReader (inStream, NameTable);
|
|
reader.XmlResolver = resolver;
|
|
XmlValidatingReader vr = new XmlValidatingReader (reader);
|
|
vr.EntityHandling = EntityHandling.ExpandCharEntities;
|
|
vr.ValidationType = ValidationType.None;
|
|
Load (vr);
|
|
}
|
|
|
|
public virtual void Load (string filename)
|
|
{
|
|
XmlTextReader xr = null;
|
|
try {
|
|
xr = new XmlTextReader (filename, NameTable);
|
|
xr.XmlResolver = resolver;
|
|
XmlValidatingReader vr = new XmlValidatingReader (xr);
|
|
vr.EntityHandling = EntityHandling.ExpandCharEntities;
|
|
vr.ValidationType = ValidationType.None;
|
|
Load (vr);
|
|
} finally {
|
|
if (xr != null)
|
|
xr.Close ();
|
|
}
|
|
}
|
|
|
|
public virtual void Load (TextReader txtReader)
|
|
{
|
|
XmlTextReader xr = new XmlTextReader (txtReader, NameTable);
|
|
XmlValidatingReader vr = new XmlValidatingReader (xr);
|
|
vr.EntityHandling = EntityHandling.ExpandCharEntities;
|
|
vr.ValidationType = ValidationType.None;
|
|
xr.XmlResolver = resolver;
|
|
Load (vr);
|
|
}
|
|
|
|
public virtual void Load (XmlReader reader)
|
|
{
|
|
// Reset our document
|
|
// For now this just means removing all our children but later this
|
|
// may turn out o need to call a private method that resets other things
|
|
// like properties we have, etc.
|
|
RemoveAll ();
|
|
|
|
this.baseURI = reader.BaseURI;
|
|
// create all contents with use of ReadNode()
|
|
try {
|
|
loadMode = true;
|
|
do {
|
|
XmlNode n = ReadNode (reader);
|
|
if (n == null)
|
|
break;
|
|
if (preserveWhitespace || n.NodeType != XmlNodeType.Whitespace)
|
|
AppendChild (n, false);
|
|
} while (reader.NodeType != XmlNodeType.EndElement);
|
|
#if NET_2_0
|
|
if (reader.Settings != null)
|
|
schemas = reader.Settings.Schemas;
|
|
#endif
|
|
} finally {
|
|
loadMode = false;
|
|
}
|
|
}
|
|
|
|
public virtual void LoadXml (string xml)
|
|
{
|
|
XmlTextReader xmlReader = new XmlTextReader (
|
|
xml,
|
|
XmlNodeType.Document,
|
|
new XmlParserContext (NameTable, new XmlNamespaceManager (NameTable), null, XmlSpace.None));
|
|
try {
|
|
xmlReader.XmlResolver = resolver;
|
|
Load (xmlReader);
|
|
} finally {
|
|
xmlReader.Close ();
|
|
}
|
|
}
|
|
|
|
internal void onNodeChanged (XmlNode node, XmlNode parent, string oldValue, string newValue)
|
|
{
|
|
if (NodeChanged != null)
|
|
NodeChanged (node, new XmlNodeChangedEventArgs
|
|
(node, parent, parent, oldValue, newValue, XmlNodeChangedAction.Change));
|
|
}
|
|
|
|
internal void onNodeChanging(XmlNode node, XmlNode parent, string oldValue, string newValue)
|
|
{
|
|
if (node.IsReadOnly)
|
|
throw new ArgumentException ("Node is read-only.");
|
|
if (NodeChanging != null)
|
|
NodeChanging (node, new XmlNodeChangedEventArgs
|
|
(node, parent, parent, oldValue, newValue, XmlNodeChangedAction.Change));
|
|
}
|
|
|
|
internal void onNodeInserted (XmlNode node, XmlNode newParent)
|
|
{
|
|
if (NodeInserted != null)
|
|
NodeInserted (node, new XmlNodeChangedEventArgs
|
|
(node, null, newParent, null, null, XmlNodeChangedAction.Insert));
|
|
}
|
|
|
|
internal void onNodeInserting (XmlNode node, XmlNode newParent)
|
|
{
|
|
if (NodeInserting != null)
|
|
NodeInserting (node, new XmlNodeChangedEventArgs
|
|
(node, null, newParent, null, null, XmlNodeChangedAction.Insert));
|
|
}
|
|
|
|
internal void onNodeRemoved (XmlNode node, XmlNode oldParent)
|
|
{
|
|
if (NodeRemoved != null)
|
|
NodeRemoved (node, new XmlNodeChangedEventArgs
|
|
(node, oldParent, null, null, null, XmlNodeChangedAction.Remove));
|
|
}
|
|
|
|
internal void onNodeRemoving (XmlNode node, XmlNode oldParent)
|
|
{
|
|
if (NodeRemoving != null)
|
|
NodeRemoving (node, new XmlNodeChangedEventArgs
|
|
(node, oldParent, null, null, null, XmlNodeChangedAction.Remove));
|
|
}
|
|
|
|
private void ParseName (string name, out string prefix, out string localName)
|
|
{
|
|
int indexOfColon = name.IndexOf (':');
|
|
|
|
if (indexOfColon != -1) {
|
|
prefix = name.Substring (0, indexOfColon);
|
|
localName = name.Substring (indexOfColon + 1);
|
|
} else {
|
|
prefix = "";
|
|
localName = name;
|
|
}
|
|
}
|
|
|
|
// Reads XmlReader and creates Attribute Node.
|
|
private XmlAttribute ReadAttributeNode (XmlReader reader)
|
|
{
|
|
if (reader.NodeType == XmlNodeType.Element)
|
|
reader.MoveToFirstAttribute ();
|
|
else if (reader.NodeType != XmlNodeType.Attribute)
|
|
throw new InvalidOperationException (MakeReaderErrorMessage ("bad position to read attribute.", reader));
|
|
XmlAttribute attribute = CreateAttribute (reader.Prefix, reader.LocalName, reader.NamespaceURI);
|
|
#if NET_2_0
|
|
if (reader.SchemaInfo != null)
|
|
SchemaInfo = reader.SchemaInfo;
|
|
#endif
|
|
bool isDefault = reader.IsDefault;
|
|
|
|
ReadAttributeNodeValue (reader, attribute);
|
|
|
|
if (isDefault)
|
|
attribute.SetDefault ();
|
|
|
|
return attribute;
|
|
}
|
|
|
|
// Reads attribute from XmlReader and then creates attribute value children. XmlAttribute also uses this.
|
|
internal void ReadAttributeNodeValue (XmlReader reader, XmlAttribute attribute)
|
|
{
|
|
while (reader.ReadAttributeValue ()) {
|
|
if (reader.NodeType == XmlNodeType.EntityReference)
|
|
attribute.AppendChild (CreateEntityReference (reader.Name), false); // omit node type check
|
|
else
|
|
// Children of Attribute is restricted to CharacterData and EntityReference (Comment is not allowed).
|
|
attribute.AppendChild (CreateTextNode (reader.Value), false); // omit node type check
|
|
}
|
|
}
|
|
|
|
[PermissionSet (SecurityAction.InheritanceDemand, Unrestricted = true)]
|
|
public virtual XmlNode ReadNode (XmlReader reader)
|
|
{
|
|
if (PreserveWhitespace)
|
|
return ReadNodeCore (reader);
|
|
XmlTextReader xtr = reader as XmlTextReader;
|
|
if (xtr != null && xtr.WhitespaceHandling ==
|
|
WhitespaceHandling.All) {
|
|
try {
|
|
xtr.WhitespaceHandling = WhitespaceHandling.Significant;
|
|
return ReadNodeCore (reader);
|
|
} finally {
|
|
xtr.WhitespaceHandling = WhitespaceHandling.All;
|
|
}
|
|
}
|
|
else
|
|
return ReadNodeCore (reader);
|
|
}
|
|
|
|
XmlNode ReadNodeCore (XmlReader reader)
|
|
{
|
|
switch (reader.ReadState) {
|
|
case ReadState.Interactive:
|
|
break;
|
|
case ReadState.Initial:
|
|
#if NET_2_0
|
|
if (reader.SchemaInfo != null)
|
|
SchemaInfo = reader.SchemaInfo;
|
|
#endif
|
|
reader.Read ();
|
|
break;
|
|
default:
|
|
return null;
|
|
}
|
|
|
|
XmlNode n;
|
|
switch (reader.NodeType) {
|
|
|
|
case XmlNodeType.Attribute:
|
|
string localName = reader.LocalName;
|
|
string ns = reader.NamespaceURI;
|
|
n = ReadAttributeNode (reader);
|
|
// Keep the current reader position on attribute.
|
|
reader.MoveToAttribute (localName, ns);
|
|
return n;
|
|
|
|
case XmlNodeType.CDATA:
|
|
n = CreateCDataSection (reader.Value);
|
|
break;
|
|
|
|
case XmlNodeType.Comment:
|
|
n = CreateComment (reader.Value);
|
|
break;
|
|
|
|
case XmlNodeType.Element:
|
|
XmlElement element = CreateElement (reader.Prefix, reader.LocalName, reader.NamespaceURI, reader.NameTable == this.NameTable);
|
|
#if NET_2_0
|
|
if (reader.SchemaInfo != null)
|
|
element.SchemaInfo = reader.SchemaInfo;
|
|
#endif
|
|
element.IsEmpty = reader.IsEmptyElement;
|
|
|
|
// set the element's attributes.
|
|
for (int i = 0; i < reader.AttributeCount; i++) {
|
|
reader.MoveToAttribute (i);
|
|
element.SetAttributeNode (
|
|
ReadAttributeNode (reader));
|
|
reader.MoveToElement ();
|
|
}
|
|
// FIXME: the code below should be fine and
|
|
// in some XmlReaders it is much faster, but
|
|
// caused some breakage in sys.data test.
|
|
/*
|
|
if (reader.MoveToFirstAttribute ()) {
|
|
do {
|
|
element.SetAttributeNode (ReadAttributeNode (reader));
|
|
} while (reader.MoveToNextAttribute ());
|
|
reader.MoveToElement ();
|
|
}
|
|
*/
|
|
reader.MoveToElement ();
|
|
|
|
int depth = reader.Depth;
|
|
|
|
if (reader.IsEmptyElement) {
|
|
n = element;
|
|
break;
|
|
}
|
|
|
|
reader.Read ();
|
|
while (reader.Depth > depth) {
|
|
n = ReadNodeCore (reader);
|
|
if (preserveWhitespace || n.NodeType != XmlNodeType.Whitespace)
|
|
element.AppendChild (n, false);
|
|
}
|
|
n = element;
|
|
break;
|
|
|
|
case XmlNodeType.ProcessingInstruction:
|
|
n = CreateProcessingInstruction (reader.Name, reader.Value);
|
|
break;
|
|
|
|
case XmlNodeType.Text:
|
|
n = CreateTextNode (reader.Value);
|
|
break;
|
|
|
|
case XmlNodeType.XmlDeclaration:
|
|
n = CreateXmlDeclaration ("1.0" , String.Empty, String.Empty);
|
|
n.Value = reader.Value;
|
|
break;
|
|
|
|
case XmlNodeType.DocumentType:
|
|
DTDObjectModel dtd = null;
|
|
IHasXmlParserContext ctxReader = reader as IHasXmlParserContext;
|
|
if (ctxReader != null)
|
|
dtd = ctxReader.ParserContext.Dtd;
|
|
|
|
if (dtd != null)
|
|
n = CreateDocumentType (dtd);
|
|
else
|
|
n = CreateDocumentType (reader.Name, reader ["PUBLIC"], reader ["SYSTEM"], reader.Value);
|
|
break;
|
|
|
|
case XmlNodeType.EntityReference:
|
|
if (this.loadMode && this.DocumentType != null &&
|
|
DocumentType.Entities.GetNamedItem (reader.Name) == null)
|
|
throw new XmlException ("Reference to undeclared entity was found.");
|
|
|
|
n = CreateEntityReference (reader.Name);
|
|
// IF argument XmlReader can resolve entity,
|
|
// ReadNode() also fills children _from it_.
|
|
// In this case, it is not from doctype node.
|
|
// (it is kind of sucky design, but it happens
|
|
// anyways when we modify doctype node).
|
|
//
|
|
// It does not happen when !CanResolveEntity.
|
|
// (In such case AppendChild() will resolve
|
|
// entity content, as XmlEntityReference does.)
|
|
if (reader.CanResolveEntity)
|
|
{
|
|
reader.ResolveEntity ();
|
|
reader.Read ();
|
|
for (XmlNode child; reader.NodeType != XmlNodeType.EndEntity && (child = ReadNode (reader)) != null;)
|
|
n.InsertBefore (child, null, false, false);
|
|
}
|
|
break;
|
|
|
|
case XmlNodeType.SignificantWhitespace:
|
|
n = CreateSignificantWhitespace (reader.Value);
|
|
break;
|
|
|
|
case XmlNodeType.Whitespace:
|
|
n = CreateWhitespace (reader.Value);
|
|
break;
|
|
|
|
case XmlNodeType.None:
|
|
return null;
|
|
|
|
default:
|
|
// No idea why MS does throw NullReferenceException ;-P
|
|
throw new NullReferenceException ("Unexpected node type " + reader.NodeType + ".");
|
|
}
|
|
|
|
reader.Read ();
|
|
return n;
|
|
}
|
|
|
|
private string MakeReaderErrorMessage (string message, XmlReader reader)
|
|
{
|
|
IXmlLineInfo li = reader as IXmlLineInfo;
|
|
if (li != null)
|
|
return String.Format (CultureInfo.InvariantCulture, "{0} Line number = {1}, Inline position = {2}.", message, li.LineNumber, li.LinePosition);
|
|
else
|
|
return message;
|
|
}
|
|
|
|
internal void RemoveIdenticalAttribute (string id)
|
|
{
|
|
idTable.Remove (id);
|
|
}
|
|
|
|
public virtual void Save (Stream outStream)
|
|
{
|
|
XmlTextWriter xmlWriter = new XmlTextWriter (outStream, TextEncoding);
|
|
if (!PreserveWhitespace)
|
|
xmlWriter.Formatting = Formatting.Indented;
|
|
WriteContentTo (xmlWriter);
|
|
xmlWriter.Flush ();
|
|
}
|
|
|
|
public virtual void Save (string filename)
|
|
{
|
|
XmlTextWriter xmlWriter = new XmlTextWriter (filename, TextEncoding);
|
|
try {
|
|
if (!PreserveWhitespace)
|
|
xmlWriter.Formatting = Formatting.Indented;
|
|
WriteContentTo (xmlWriter);
|
|
} finally {
|
|
xmlWriter.Close ();
|
|
}
|
|
}
|
|
|
|
public virtual void Save (TextWriter writer)
|
|
{
|
|
XmlTextWriter xmlWriter = new XmlTextWriter (writer);
|
|
if (!PreserveWhitespace)
|
|
xmlWriter.Formatting = Formatting.Indented;
|
|
if (FirstChild != null && FirstChild.NodeType != XmlNodeType.XmlDeclaration)
|
|
xmlWriter.WriteStartDocument ();
|
|
WriteContentTo (xmlWriter);
|
|
xmlWriter.WriteEndDocument ();
|
|
xmlWriter.Flush ();
|
|
}
|
|
|
|
public virtual void Save (XmlWriter w)
|
|
{
|
|
//
|
|
// This should preserve white space if PreserveWhiteSpace is true
|
|
//
|
|
bool autoXmlDecl = FirstChild != null && FirstChild.NodeType != XmlNodeType.XmlDeclaration;
|
|
if (autoXmlDecl)
|
|
w.WriteStartDocument ();
|
|
WriteContentTo (w);
|
|
if (autoXmlDecl)
|
|
w.WriteEndDocument ();
|
|
w.Flush ();
|
|
}
|
|
|
|
public override void WriteContentTo (XmlWriter xw)
|
|
{
|
|
for (XmlNode n = FirstChild; n != null; n = n.NextSibling)
|
|
n.WriteTo (xw);
|
|
}
|
|
|
|
public override void WriteTo (XmlWriter w)
|
|
{
|
|
WriteContentTo (w);
|
|
}
|
|
|
|
private void AddDefaultNameTableKeys ()
|
|
{
|
|
// The following keys are default of MS .NET Framework
|
|
nameTable.Add ("#text");
|
|
nameTable.Add ("xml");
|
|
nameTable.Add ("xmlns");
|
|
nameTable.Add ("#entity");
|
|
nameTable.Add ("#document-fragment");
|
|
nameTable.Add ("#comment");
|
|
nameTable.Add ("space");
|
|
nameTable.Add ("id");
|
|
nameTable.Add ("#whitespace");
|
|
nameTable.Add ("http://www.w3.org/2000/xmlns/");
|
|
nameTable.Add ("#cdata-section");
|
|
nameTable.Add ("lang");
|
|
nameTable.Add ("#document");
|
|
nameTable.Add ("#significant-whitespace");
|
|
}
|
|
|
|
internal void CheckIdTableUpdate (XmlAttribute attr, string oldValue, string newValue)
|
|
{
|
|
if (idTable [oldValue] == attr) {
|
|
idTable.Remove (oldValue);
|
|
idTable [newValue] = attr;
|
|
}
|
|
}
|
|
|
|
#if NET_2_0
|
|
public void Validate (ValidationEventHandler validationEventHandler)
|
|
{
|
|
Validate (validationEventHandler, this,
|
|
XmlSchemaValidationFlags.ProcessIdentityConstraints);
|
|
}
|
|
|
|
public void Validate (ValidationEventHandler validationEventHandler, XmlNode nodeToValidate)
|
|
{
|
|
Validate (validationEventHandler, nodeToValidate,
|
|
XmlSchemaValidationFlags.ProcessIdentityConstraints);
|
|
}
|
|
|
|
private void Validate (ValidationEventHandler handler,
|
|
XmlNode node, XmlSchemaValidationFlags flags)
|
|
{
|
|
XmlReaderSettings settings = new XmlReaderSettings ();
|
|
settings.NameTable = NameTable;
|
|
settings.Schemas = schemas;
|
|
settings.Schemas.XmlResolver = resolver;
|
|
settings.XmlResolver = resolver;
|
|
settings.ValidationFlags = flags;
|
|
settings.ValidationType = ValidationType.Schema;
|
|
XmlReader r = XmlReader.Create (
|
|
new XmlNodeReader (node), settings);
|
|
while (!r.EOF)
|
|
r.Read ();
|
|
}
|
|
#endif
|
|
|
|
#endregion
|
|
}
|
|
}
|