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
- NameNode.cs
- SerializationUtilities.cs
- TextParentUndoUnit.cs
- Gdiplus.cs
- WizardStepBase.cs
- OpenFileDialog.cs
- DocumentViewerBaseAutomationPeer.cs
- GPPOINT.cs
- MimeBasePart.cs
- Pen.cs
- EUCJPEncoding.cs
- _ContextAwareResult.cs
- ThemeInfoAttribute.cs
- FontNameConverter.cs
- ProcessHostMapPath.cs
- AssemblyGen.cs
- InsufficientMemoryException.cs
- recordstatescratchpad.cs
- XPathParser.cs
- HtmlGenericControl.cs
- ConditionCollection.cs
- RegexReplacement.cs
- OdbcConnectionFactory.cs
- SqlTriggerContext.cs
- RecordBuilder.cs
- Converter.cs
- SimplePropertyEntry.cs
- LayoutEvent.cs
- DefaultExpressionVisitor.cs
- ContentPathSegment.cs
- TransformerTypeCollection.cs
- HWStack.cs
- CheckBox.cs
- ModifierKeysValueSerializer.cs
- AuthenticationException.cs
- WebServiceResponseDesigner.cs
- SqlRowUpdatingEvent.cs
- RotateTransform3D.cs
- InstancePersistenceEvent.cs
- EntityContainerEntitySetDefiningQuery.cs
- SwitchExpression.cs
- Padding.cs
- AppearanceEditorPart.cs
- XmlSchemaRedefine.cs
- AssociativeAggregationOperator.cs
- CompilerError.cs
- Classification.cs
- ScriptRegistrationManager.cs
- WebConfigurationHostFileChange.cs
- MatrixKeyFrameCollection.cs
- handlecollector.cs
- WebDisplayNameAttribute.cs
- LabelEditEvent.cs
- XsdValidatingReader.cs
- FormatVersion.cs
- HTMLTextWriter.cs
- GroupBox.cs
- ToolStripActionList.cs
- WinEventWrap.cs
- ConfigurationManagerInternalFactory.cs
- RichTextBox.cs
- BinaryFormatter.cs
- SoapIncludeAttribute.cs
- ProcessThreadDesigner.cs
- EmissiveMaterial.cs
- ConfigurationErrorsException.cs
- ReflectionUtil.cs
- NestPullup.cs
- Point.cs
- DataServiceSaveChangesEventArgs.cs
- BuilderPropertyEntry.cs
- ObjectPropertyMapping.cs
- SqlError.cs
- ManipulationDeltaEventArgs.cs
- DesignerCategoryAttribute.cs
- RegistrySecurity.cs
- ColumnMapVisitor.cs
- EmptyImpersonationContext.cs
- SerializationInfo.cs
- OrthographicCamera.cs
- webproxy.cs
- Bidi.cs
- SortExpressionBuilder.cs
- HtmlHistory.cs
- LicenseProviderAttribute.cs
- ObjectTokenCategory.cs
- safelink.cs
- FillRuleValidation.cs
- Panel.cs
- MdiWindowListStrip.cs
- DescendentsWalker.cs
- ValidationErrorCollection.cs
- DataGridViewCellPaintingEventArgs.cs
- NetworkInformationException.cs
- PageVisual.cs
- SecurityHelper.cs
- StyleCollection.cs
- XmlDataProvider.cs
- X509ThumbprintKeyIdentifierClause.cs
- CredentialSelector.cs