Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / Xml / System / Xml / Core / ReadOnlyTernaryTree.cs / 1 / ReadOnlyTernaryTree.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- using System; using System.IO; using System.Diagnostics; namespace System.Xml { // Array index to indicate the meaning of the each byte. internal enum TernaryTreeByte {characterByte = 0, leftTree = 1, rightTree = 2, data = 3}; // // XSL HTML output method properties // // Keep the first four bits in [....], so that the element and attribute mask operation can be combined. internal enum ElementProperties : uint {DEFAULT = 0, URI_PARENT = 1, BOOL_PARENT = 2, NAME_PARENT = 4, EMPTY = 8, NO_ENTITIES = 16, HEAD = 32, BLOCK_WS = 64, HAS_NS = 128} internal enum AttributeProperties : uint {DEFAULT = 0, URI = 1, BOOLEAN = 2, NAME = 4} /** * TernaryTreeRO * ------------- * * Ternary tree implementation used to make fast dictionary lookups in pre-generated * ternary trees. * * Note: Only strings composed of ASCII characters can exist in the tree. */ ///internal class TernaryTreeReadOnly { byte [] nodeBuffer; //define the array positions /// public TernaryTreeReadOnly(byte [] nodeBuffer) { this.nodeBuffer = nodeBuffer; } /* --------------------------------------------------------------------------- findStringI() Find a Unicode string in the ternary tree and return the data byte it's mapped to. Find is case-insensitive. */ /// public byte FindCaseInsensitiveString(String stringToFind) { //Debug.Assert(wszFind != null && wszFind.Length != 0); int stringPos = 0, nodePos = 0; int charToFind, charInTheTree; byte [] node = nodeBuffer; charToFind = stringToFind[stringPos]; if (charToFind > 'z') return 0; // Ternary tree only stores ASCII strings if (charToFind >= 'a') charToFind -= ('a' - 'A'); // Normalize to upper case while (true) { int pos = nodePos * 4; charInTheTree = node[pos + (int)TernaryTreeByte.characterByte]; //Console.WriteLine("charToFind: {0},charInTheTree: {1}, nodePos: {2}", charToFind, charInTheTree, nodePos); if (charToFind < charInTheTree) { // If input character is less than the tree character, take the left branch if (node[pos + (int)TernaryTreeByte.leftTree] == 0x0) { break; } nodePos = nodePos + node[pos + (int)TernaryTreeByte.leftTree]; } else if (charToFind > charInTheTree) { // If input character is greater than the tree character, take the right branch if (node[pos + (int)TernaryTreeByte.rightTree] == 0x0) break; nodePos = nodePos + node[pos + (int)TernaryTreeByte.rightTree]; } else { // If input character is equal to the tree character, take the equal branch if (charToFind == 0) return node[pos + (int)TernaryTreeByte.data]; // The offset for the equal branch is always one ++nodePos; // Move to the next input character ++stringPos; if (stringPos == stringToFind.Length) { charToFind = 0; } else { charToFind = stringToFind[stringPos]; if (charToFind > 'z') return 0; // Ternary tree only stores ASCII strings if (charToFind >= 'a') charToFind -= ('a' - 'A'); // Normalize to upper case } } } // Return default return 0; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- using System; using System.IO; using System.Diagnostics; namespace System.Xml { // Array index to indicate the meaning of the each byte. internal enum TernaryTreeByte {characterByte = 0, leftTree = 1, rightTree = 2, data = 3}; // // XSL HTML output method properties // // Keep the first four bits in [....], so that the element and attribute mask operation can be combined. internal enum ElementProperties : uint {DEFAULT = 0, URI_PARENT = 1, BOOL_PARENT = 2, NAME_PARENT = 4, EMPTY = 8, NO_ENTITIES = 16, HEAD = 32, BLOCK_WS = 64, HAS_NS = 128} internal enum AttributeProperties : uint {DEFAULT = 0, URI = 1, BOOLEAN = 2, NAME = 4} /** * TernaryTreeRO * ------------- * * Ternary tree implementation used to make fast dictionary lookups in pre-generated * ternary trees. * * Note: Only strings composed of ASCII characters can exist in the tree. */ ///internal class TernaryTreeReadOnly { byte [] nodeBuffer; //define the array positions /// public TernaryTreeReadOnly(byte [] nodeBuffer) { this.nodeBuffer = nodeBuffer; } /* --------------------------------------------------------------------------- findStringI() Find a Unicode string in the ternary tree and return the data byte it's mapped to. Find is case-insensitive. */ /// public byte FindCaseInsensitiveString(String stringToFind) { //Debug.Assert(wszFind != null && wszFind.Length != 0); int stringPos = 0, nodePos = 0; int charToFind, charInTheTree; byte [] node = nodeBuffer; charToFind = stringToFind[stringPos]; if (charToFind > 'z') return 0; // Ternary tree only stores ASCII strings if (charToFind >= 'a') charToFind -= ('a' - 'A'); // Normalize to upper case while (true) { int pos = nodePos * 4; charInTheTree = node[pos + (int)TernaryTreeByte.characterByte]; //Console.WriteLine("charToFind: {0},charInTheTree: {1}, nodePos: {2}", charToFind, charInTheTree, nodePos); if (charToFind < charInTheTree) { // If input character is less than the tree character, take the left branch if (node[pos + (int)TernaryTreeByte.leftTree] == 0x0) { break; } nodePos = nodePos + node[pos + (int)TernaryTreeByte.leftTree]; } else if (charToFind > charInTheTree) { // If input character is greater than the tree character, take the right branch if (node[pos + (int)TernaryTreeByte.rightTree] == 0x0) break; nodePos = nodePos + node[pos + (int)TernaryTreeByte.rightTree]; } else { // If input character is equal to the tree character, take the equal branch if (charToFind == 0) return node[pos + (int)TernaryTreeByte.data]; // The offset for the equal branch is always one ++nodePos; // Move to the next input character ++stringPos; if (stringPos == stringToFind.Length) { charToFind = 0; } else { charToFind = stringToFind[stringPos]; if (charToFind > 'z') return 0; // Ternary tree only stores ASCII strings if (charToFind >= 'a') charToFind -= ('a' - 'A'); // Normalize to upper case } } } // Return default return 0; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- XomlCompilerHelpers.cs
- UIElementIsland.cs
- ThemeInfoAttribute.cs
- EventlogProvider.cs
- FontStretches.cs
- ZoneButton.cs
- CellParagraph.cs
- HostedHttpContext.cs
- BitmapDownload.cs
- FactoryGenerator.cs
- wmiprovider.cs
- NavigationPropertySingletonExpression.cs
- EncodingFallbackAwareXmlTextWriter.cs
- EntityDataSourceSelectedEventArgs.cs
- ZipPackagePart.cs
- EventMappingSettings.cs
- TextModifier.cs
- DataGridViewColumn.cs
- DesignTimeParseData.cs
- WebAdminConfigurationHelper.cs
- MD5.cs
- ADConnectionHelper.cs
- ObjectNavigationPropertyMapping.cs
- ResumeStoryboard.cs
- ToolStripMenuItem.cs
- MdbDataFileEditor.cs
- ImplicitInputBrush.cs
- SqlIdentifier.cs
- SerializationInfo.cs
- RegexReplacement.cs
- RMEnrollmentPage2.cs
- XslAst.cs
- XPathExpr.cs
- XamlTypeWithExplicitNamespace.cs
- ChangeBlockUndoRecord.cs
- BypassElementCollection.cs
- SourceElementsCollection.cs
- CircleHotSpot.cs
- HtmlAnchor.cs
- StructuredTypeInfo.cs
- ImmutableObjectAttribute.cs
- FileDialogCustomPlacesCollection.cs
- MethodImplAttribute.cs
- ZipIOExtraFieldPaddingElement.cs
- TargetConverter.cs
- RowUpdatedEventArgs.cs
- FormatterServices.cs
- CodeDirectoryCompiler.cs
- InputChannelAcceptor.cs
- TlsnegoTokenProvider.cs
- _DisconnectOverlappedAsyncResult.cs
- AmbientValueAttribute.cs
- TemplateComponentConnector.cs
- BinaryUtilClasses.cs
- VirtualPathUtility.cs
- TimestampInformation.cs
- ScrollableControlDesigner.cs
- BitmapImage.cs
- XmlQueryOutput.cs
- SerializationInfoEnumerator.cs
- StructuredTypeEmitter.cs
- SchemaAttDef.cs
- XmlAggregates.cs
- WindowHideOrCloseTracker.cs
- SizeAnimation.cs
- storepermission.cs
- ChannelServices.cs
- DataGridRow.cs
- ExtendedProtectionPolicy.cs
- CLSCompliantAttribute.cs
- XmlDataSource.cs
- WebPartsPersonalizationAuthorization.cs
- BitArray.cs
- DaylightTime.cs
- Win32.cs
- PreservationFileReader.cs
- Stackframe.cs
- _ServiceNameStore.cs
- CustomUserNameSecurityTokenAuthenticator.cs
- HostedTcpTransportManager.cs
- ModelProperty.cs
- XmlAttributeOverrides.cs
- StructuredType.cs
- Matrix3D.cs
- UpdateEventArgs.cs
- Util.cs
- EntityDataSourceQueryBuilder.cs
- WindowProviderWrapper.cs
- DataBindingList.cs
- XmlHierarchicalDataSourceView.cs
- SizeAnimationBase.cs
- DataFormats.cs
- ConfigurationSettings.cs
- DiscoveryServerProtocol.cs
- TableLayoutPanel.cs
- Processor.cs
- _LoggingObject.cs
- PeerNearMe.cs
- Memoizer.cs
- LogWriteRestartAreaAsyncResult.cs