Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Xml / System / Xml / XPath / Internal / baseaxisquery.cs / 1 / baseaxisquery.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- namespace MS.Internal.Xml.XPath { using System; using System.Xml; using System.Xml.XPath; using System.Diagnostics; using System.Globalization; using System.Xml.Xsl; using System.Collections; internal abstract class BaseAxisQuery : Query { internal Query qyInput; bool nameTest; string name; string prefix; string nsUri; XPathNodeType typeTest; // these two things are the state of this class // that need to be reset whenever the context changes. protected XPathNavigator currentNode; protected int position; protected BaseAxisQuery(Query qyInput) { this.name = string.Empty; this.prefix = string.Empty; this.nsUri = string.Empty; this.qyInput = qyInput; } protected BaseAxisQuery(Query qyInput, string name, string prefix, XPathNodeType typeTest) { Debug.Assert(qyInput != null); this.qyInput = qyInput; this.name = name; this.prefix = prefix; this.typeTest = typeTest; this.nameTest = prefix.Length != 0 || name.Length != 0; this.nsUri = string.Empty; } protected BaseAxisQuery(BaseAxisQuery other) : base(other) { this.qyInput = Clone(other.qyInput); this.name = other.name; this.prefix = other.prefix; this.nsUri = other.nsUri; this.typeTest = other.typeTest; this.nameTest = other.nameTest; this.position = other.position; this.currentNode = other.currentNode; } public override void Reset() { position = 0; currentNode = null; // After this current will not point to context node from Evaluate() call // But this is ok, becuase there is no public Reset() on XPathNodeIterator qyInput.Reset(); } public override void SetXsltContext(XsltContext context) { Debug.Assert(context != null); nsUri = context.LookupNamespace(prefix); qyInput.SetXsltContext(context); } protected string Name { get { return name; } } protected string Prefix { get { return prefix; } } protected string Namespace { get { return nsUri; } } protected bool NameTest { get { return nameTest; } } protected XPathNodeType TypeTest { get { return typeTest; } } public override int CurrentPosition { get { return position; } } public override XPathNavigator Current { get { return currentNode; } } public virtual bool matches(XPathNavigator e) { if ( TypeTest == e.NodeType || TypeTest == XPathNodeType.All || TypeTest == XPathNodeType.Text && (e.NodeType == XPathNodeType.Whitespace || e.NodeType == XPathNodeType.SignificantWhitespace) ) { if (NameTest) { if (name.Equals(e.LocalName) || name.Length == 0) { if (nsUri.Equals(e.NamespaceURI)){ return true; } } } else { return true; } } return false; } public override object Evaluate(XPathNodeIterator nodeIterator) { ResetCount(); Reset(); qyInput.Evaluate(nodeIterator); AssertQuery(qyInput); return this; } public override double XsltDefaultPriority { get { if (qyInput.GetType() != typeof(ContextQuery)) { return 0.5; // a/b a[b] id('s')/a } Debug.Assert(this is AttributeQuery || this is ChildrenQuery); if (name.Length != 0) { return 0; // p:foo, foo, processing-instruction("foo") } if (prefix.Length != 0) { return -0.25; // p:* } return -0.5; // *, text(), node() } } public override XPathResultType StaticType { get { return XPathResultType.NodeSet; } } public override void PrintQuery(XmlWriter w) { w.WriteStartElement(this.GetType().Name); if (NameTest) { w.WriteAttributeString("name", Prefix.Length != 0 ? Prefix + ':' + Name : Name); } if (TypeTest != XPathNodeType.Element) { w.WriteAttributeString("nodeType", TypeTest.ToString()); } qyInput.PrintQuery(w); w.WriteEndElement(); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- CryptoApi.cs
- SettingsAttributes.cs
- MeshGeometry3D.cs
- SpecularMaterial.cs
- Base64Stream.cs
- PtsHelper.cs
- AsyncStreamReader.cs
- SettingsPropertyValue.cs
- DataObject.cs
- StringUtil.cs
- MenuItem.cs
- ValuePatternIdentifiers.cs
- indexingfiltermarshaler.cs
- HttpResponseHeader.cs
- StylusPointPropertyUnit.cs
- DbgUtil.cs
- MobileCapabilities.cs
- OdbcInfoMessageEvent.cs
- Metadata.cs
- PerfProviderCollection.cs
- RadioButtonStandardAdapter.cs
- SqlDataAdapter.cs
- QilXmlWriter.cs
- View.cs
- XmlDataSource.cs
- HtmlForm.cs
- _RequestCacheProtocol.cs
- DefaultEventAttribute.cs
- RadioButtonPopupAdapter.cs
- JsonSerializer.cs
- SHA1Managed.cs
- SQLDateTimeStorage.cs
- DropDownButton.cs
- KeyPullup.cs
- TextHintingModeValidation.cs
- TdsParserSessionPool.cs
- CodeArrayCreateExpression.cs
- SamlSubject.cs
- AttachedAnnotationChangedEventArgs.cs
- HtmlElementEventArgs.cs
- Delegate.cs
- EntityUtil.cs
- EntityDataSourceState.cs
- ErrorWrapper.cs
- RelationshipManager.cs
- LockedHandleGlyph.cs
- DataBoundControlAdapter.cs
- ServiceMemoryGates.cs
- BuildDependencySet.cs
- XpsSerializerWriter.cs
- Environment.cs
- DesignerTransactionCloseEvent.cs
- Window.cs
- BrowserDefinition.cs
- FieldTemplateUserControl.cs
- MailAddressCollection.cs
- BypassElementCollection.cs
- WebPartVerbCollection.cs
- SynthesizerStateChangedEventArgs.cs
- EFDataModelProvider.cs
- RuleSettingsCollection.cs
- DataGridViewColumnConverter.cs
- ProcessInputEventArgs.cs
- ServiceDescription.cs
- X509Certificate.cs
- CodeAssignStatement.cs
- ToolStripPanelRenderEventArgs.cs
- RadialGradientBrush.cs
- CompilerScopeManager.cs
- FocusChangedEventArgs.cs
- GeneralTransformGroup.cs
- ProjectedWrapper.cs
- Vector3DAnimationBase.cs
- EncodingDataItem.cs
- DateTimeFormatInfo.cs
- BamlWriter.cs
- ActiveXHost.cs
- PenLineJoinValidation.cs
- ChineseLunisolarCalendar.cs
- DataGridRowHeader.cs
- StringStorage.cs
- ListSortDescription.cs
- PackagingUtilities.cs
- UserThread.cs
- PropertyMetadata.cs
- GridViewItemAutomationPeer.cs
- ContractMapping.cs
- EncoderFallback.cs
- InvalidCastException.cs
- SqlClientMetaDataCollectionNames.cs
- WebPartVerb.cs
- BooleanExpr.cs
- MiniCustomAttributeInfo.cs
- LogReservationCollection.cs
- AlphaSortedEnumConverter.cs
- IgnorePropertiesAttribute.cs
- TagPrefixAttribute.cs
- Shared.cs
- Frame.cs
- TypeListConverter.cs