Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / 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
- BooleanFunctions.cs
- ByteBufferPool.cs
- RowsCopiedEventArgs.cs
- CircleHotSpot.cs
- IConvertible.cs
- EditorPartChrome.cs
- WindowsSolidBrush.cs
- EventMap.cs
- DataSysAttribute.cs
- AdRotatorDesigner.cs
- XsdBuildProvider.cs
- WebPartConnection.cs
- CustomErrorsSection.cs
- SapiRecognizer.cs
- KnownBoxes.cs
- ToolStripContentPanel.cs
- CustomAttribute.cs
- SplitterCancelEvent.cs
- ProfileSettings.cs
- COM2ComponentEditor.cs
- XmlDomTextWriter.cs
- ValidatingReaderNodeData.cs
- QilDataSource.cs
- ArrangedElementCollection.cs
- ExtensionSurface.cs
- DataControlFieldTypeEditor.cs
- SByte.cs
- QueryOperationResponseOfT.cs
- Activator.cs
- SqlBulkCopy.cs
- WebSysDescriptionAttribute.cs
- DefaultProxySection.cs
- XmlQueryStaticData.cs
- EncoderReplacementFallback.cs
- Relationship.cs
- HandleRef.cs
- TransformerTypeCollection.cs
- Codec.cs
- WmlPanelAdapter.cs
- MessageSmuggler.cs
- Binding.cs
- XmlDataSourceNodeDescriptor.cs
- RemoteHelper.cs
- ConfigurationManagerHelperFactory.cs
- __ComObject.cs
- SiteMapNode.cs
- CodeParameterDeclarationExpression.cs
- Track.cs
- HtmlTable.cs
- HttpFileCollection.cs
- Comparer.cs
- IfAction.cs
- VisualStyleInformation.cs
- Menu.cs
- BezierSegment.cs
- X509IssuerSerialKeyIdentifierClause.cs
- WindowHideOrCloseTracker.cs
- CodeBlockBuilder.cs
- ExpandCollapseProviderWrapper.cs
- EntityDataSourceState.cs
- ConnectionManagementSection.cs
- EntitySet.cs
- SoapIncludeAttribute.cs
- AlignmentYValidation.cs
- returneventsaver.cs
- XmlAutoDetectWriter.cs
- SoapAttributes.cs
- DateTimeValueSerializer.cs
- BaseCAMarshaler.cs
- Mutex.cs
- AnnotationDocumentPaginator.cs
- DataReaderContainer.cs
- SchemaCollectionPreprocessor.cs
- PathFigureCollectionValueSerializer.cs
- ArraySegment.cs
- CalendarDay.cs
- MenuItemStyle.cs
- XpsFilter.cs
- JoinTreeSlot.cs
- LinqDataSourceSelectEventArgs.cs
- ZipIOFileItemStream.cs
- ResolveCriteriaCD1.cs
- MobileControlsSection.cs
- UInt16.cs
- IndicFontClient.cs
- ItemContainerGenerator.cs
- NamespaceQuery.cs
- _ContextAwareResult.cs
- ExpressionBuilderContext.cs
- SRGSCompiler.cs
- FileRecordSequenceCompletedAsyncResult.cs
- HtmlTitle.cs
- EncryptedType.cs
- StorageRoot.cs
- PersonalizationEntry.cs
- SamlAssertionKeyIdentifierClause.cs
- TypePropertyEditor.cs
- Mouse.cs
- StylusPointCollection.cs
- ResourceAttributes.cs