Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / 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 sync, 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.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- XsdDuration.cs
- DataFormats.cs
- sqlser.cs
- XmlSerializationGeneratedCode.cs
- StringSorter.cs
- Brush.cs
- MDIWindowDialog.cs
- TransformedBitmap.cs
- BasicExpressionVisitor.cs
- ToolStripRenderEventArgs.cs
- RuntimeConfig.cs
- Decorator.cs
- ServiceHttpHandlerFactory.cs
- MatrixConverter.cs
- ComPlusContractBehavior.cs
- XmlSchemaValidationException.cs
- TextStore.cs
- ResourceKey.cs
- PropertyEmitter.cs
- InvalidCastException.cs
- ParamArrayAttribute.cs
- ChannelCredentials.cs
- DesignerTextWriter.cs
- DataGridViewCellStateChangedEventArgs.cs
- DataPagerFieldCollection.cs
- StaticResourceExtension.cs
- TextFindEngine.cs
- DBPropSet.cs
- Rect3DValueSerializer.cs
- ActivityPreviewDesigner.cs
- TextServicesContext.cs
- Composition.cs
- SortAction.cs
- HwndSubclass.cs
- ResourceDictionary.cs
- DetailsViewModeEventArgs.cs
- UserControlDocumentDesigner.cs
- PageSetupDialog.cs
- PolicyChain.cs
- HttpPostedFileBase.cs
- TableSectionStyle.cs
- ToolboxBitmapAttribute.cs
- OLEDB_Util.cs
- ItemDragEvent.cs
- ConfigXmlComment.cs
- SingleSelectRootGridEntry.cs
- WebPartEditorOkVerb.cs
- IndexedString.cs
- HttpRequestCacheValidator.cs
- JsonSerializer.cs
- DocumentScope.cs
- NetTcpBinding.cs
- MediaEntryAttribute.cs
- MailAddressParser.cs
- SQLCharsStorage.cs
- HttpGetProtocolImporter.cs
- ListView.cs
- ContractSearchPattern.cs
- SponsorHelper.cs
- MailWriter.cs
- Int32Rect.cs
- LassoSelectionBehavior.cs
- DataService.cs
- IdentityModelDictionary.cs
- SqlConnectionPoolGroupProviderInfo.cs
- QueryCacheManager.cs
- SplitterPanel.cs
- ModifiableIteratorCollection.cs
- WebReferencesBuildProvider.cs
- Parser.cs
- HostTimeoutsElement.cs
- RSAOAEPKeyExchangeFormatter.cs
- WebConvert.cs
- DataColumnPropertyDescriptor.cs
- NamespaceInfo.cs
- DiagnosticsConfigurationHandler.cs
- Help.cs
- AssemblySettingAttributes.cs
- ContainerVisual.cs
- InputLanguageCollection.cs
- HttpFileCollection.cs
- Point3DCollection.cs
- _emptywebproxy.cs
- GlyphShapingProperties.cs
- SchemaCollectionCompiler.cs
- TemplateControlBuildProvider.cs
- TCPClient.cs
- TextDecorationLocationValidation.cs
- _OSSOCK.cs
- RepeatEnumerable.cs
- TextAutomationPeer.cs
- ContextMenu.cs
- AsyncCompletedEventArgs.cs
- Schema.cs
- RequestBringIntoViewEventArgs.cs
- As.cs
- ToolStripScrollButton.cs
- ModelTreeEnumerator.cs
- TypeLoadException.cs
- IntegerValidatorAttribute.cs