Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Globalization / SortKey.cs / 1 / SortKey.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== //////////////////////////////////////////////////////////////////////////// // // Class: SortKey // // Purpose: This class implements a set of methods for retrieving // sort key information. // // Date: August 12, 1998 // //////////////////////////////////////////////////////////////////////////// namespace System.Globalization { using System; using System.Runtime.CompilerServices; [System.Runtime.InteropServices.ComVisible(true)] [Serializable] public class SortKey { //--------------------------------------------------------------------// // Internal Information // //-------------------------------------------------------------------// // // Variables. // internal int win32LCID; // 32-bit Win32 locale ID. It may contain a 4-bit sort ID. internal CompareOptions options; // options internal String m_String; // original string internal byte[] m_KeyData; // sortkey data // Mask used to check if the c'tor has the right flags. private const CompareOptions ValidSortkeyCtorMaskOffFlags = ~(CompareOptions.IgnoreCase | CompareOptions.IgnoreSymbols | CompareOptions.IgnoreNonSpace | CompareOptions.IgnoreWidth | CompareOptions.IgnoreKanaType | CompareOptions.StringSort); //////////////////////////////////////////////////////////////////////// // // SortKey Constructor // // Implements CultureInfo.CompareInfo.GetSortKey(). // Package access only. // //////////////////////////////////////////////////////////////////////// unsafe internal SortKey(void* pSortingFile, int win32LCID, String str, CompareOptions options) { if (str==null) { throw new ArgumentNullException("str"); } // // WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! // // This parameter check was added in Whidbey prior to Beta 2. We are keeping this // change in mind in case we hear of any issues with it. // // WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! // if ((options & ValidSortkeyCtorMaskOffFlags) != 0) { throw new ArgumentException(Environment.GetResourceString("Argument_InvalidFlag"), "options"); } //This takes the sort id from CompareInfo, so we should be able to skip initializing it. this.win32LCID = win32LCID; this.options = options; m_String = str; //We need an initialized SortTable here, but since we're getting this as an instance //method off of a CompareInfo, we're guaranteed that that already happened. m_KeyData = CompareInfo.nativeCreateSortKey(pSortingFile, str, (int)options, win32LCID); } #if !FEATURE_PAL // // The following constructor is designed to be called from CompareInfo to get the // the sort key of specific string for synthetic culture // //internal SortKey(int win32LCID, String str, CompareOptions options) { if (str==null) { throw new ArgumentNullException("str"); } if ((options & ValidSortkeyCtorMaskOffFlags) != 0) { throw new ArgumentException(Environment.GetResourceString("Argument_InvalidFlag"), "options"); } if (CultureInfo.GetNativeSortKey(win32LCID, CompareInfo.GetNativeCompareFlags(options), str, str.Length, out m_KeyData) <= 0) { throw new ArgumentException(Environment.GetResourceString("Argument_InvalidFlag"), "str"); } this.win32LCID = win32LCID; this.options = options; this.m_String = str; } #endif // !FEATURE_PAL //////////////////////////////////////////////////////////////////////// // // GetOriginalString // // Returns the original string used to create the current instance // of SortKey. // //////////////////////////////////////////////////////////////////////// public virtual String OriginalString { get { return (m_String); } } //////////////////////////////////////////////////////////////////////// // // GetKeyData // // Returns a byte array representing the current instance of the // sort key. // //////////////////////////////////////////////////////////////////////// public virtual byte[] KeyData { get { return (byte[])(m_KeyData.Clone()); } } //////////////////////////////////////////////////////////////////////// // // Compare // // Compares the two sort keys. Returns 0 if the two sort keys are // equal, a number less than 0 if sortkey1 is less than sortkey2, // and a number greater than 0 if sortkey1 is greater than sortkey2. // //////////////////////////////////////////////////////////////////////// public static int Compare(SortKey sortkey1, SortKey sortkey2) { if (sortkey1==null || sortkey2==null) { throw new ArgumentNullException((sortkey1==null ? "sortkey1": "sortkey2")); } byte[] key1Data = sortkey1.m_KeyData; byte[] key2Data = sortkey2.m_KeyData; BCLDebug.Assert(key1Data!=null, "key1Data!=null"); BCLDebug.Assert(key2Data!=null, "key2Data!=null"); if (key1Data.Length == 0) { if (key2Data.Length == 0) { return (0); } return (-1); } if (key2Data.Length == 0) { return (1); } int compLen = (key1Data.Length key2Data[i]) { return (1); } if (key1Data[i]
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- UpdatePanelControlTrigger.cs
- XmlHierarchicalEnumerable.cs
- ContextStack.cs
- ResourceWriter.cs
- TableItemPattern.cs
- AbsoluteQuery.cs
- TabletDevice.cs
- OSFeature.cs
- SimpleType.cs
- CompositeCollectionView.cs
- IsolatedStorageFilePermission.cs
- DbConnectionPool.cs
- ComPlusDiagnosticTraceSchemas.cs
- TypeCodeDomSerializer.cs
- AmbientLight.cs
- TimerElapsedEvenArgs.cs
- TcpClientChannel.cs
- SiteOfOriginPart.cs
- TemplateColumn.cs
- UiaCoreApi.cs
- ValueTable.cs
- SafeMILHandle.cs
- IIS7UserPrincipal.cs
- ObjectListField.cs
- WebPartsPersonalizationAuthorization.cs
- XmlNamespaceMappingCollection.cs
- ErrorWebPart.cs
- SQLString.cs
- TransformCollection.cs
- ButtonFieldBase.cs
- Utils.cs
- InstanceNormalEvent.cs
- AnnotationService.cs
- BinaryCommonClasses.cs
- UnsafeMethods.cs
- Compiler.cs
- ScriptingRoleServiceSection.cs
- AdRotatorDesigner.cs
- Point3DAnimationBase.cs
- SplitterCancelEvent.cs
- DateTimeOffsetAdapter.cs
- XamlVector3DCollectionSerializer.cs
- Mappings.cs
- EffectiveValueEntry.cs
- DispatcherExceptionFilterEventArgs.cs
- SafeProcessHandle.cs
- PageCache.cs
- ConfigDefinitionUpdates.cs
- KeyedQueue.cs
- FunctionParameter.cs
- ProfileManager.cs
- SafeCryptContextHandle.cs
- GenericFlowSwitchHelper.cs
- X509IssuerSerialKeyIdentifierClause.cs
- configsystem.cs
- DirectoryGroupQuery.cs
- TreeViewCancelEvent.cs
- BitmapEffectCollection.cs
- InstallerTypeAttribute.cs
- SafeProcessHandle.cs
- InstanceDataCollection.cs
- HtmlHead.cs
- RegexCharClass.cs
- SafeNativeMethods.cs
- TemplateEditingService.cs
- ReturnValue.cs
- SamlAuthorityBinding.cs
- LicenseManager.cs
- FormattedText.cs
- OleDbException.cs
- CustomPopupPlacement.cs
- DispatcherExceptionEventArgs.cs
- AccessControlList.cs
- RequestQueryProcessor.cs
- CreateUserWizardAutoFormat.cs
- ErrorFormatter.cs
- NonClientArea.cs
- AmbientValueAttribute.cs
- CacheEntry.cs
- ExceptionTrace.cs
- QueryStoreStatusRequest.cs
- Collection.cs
- DetailsViewUpdatedEventArgs.cs
- BinaryOperationBinder.cs
- Assert.cs
- IResourceProvider.cs
- InfoCardRSAPKCS1SignatureDeformatter.cs
- BooleanFacetDescriptionElement.cs
- DCSafeHandle.cs
- OrderedDictionary.cs
- AtomicFile.cs
- OSFeature.cs
- ChannelManagerBase.cs
- InputLanguageCollection.cs
- IgnorePropertiesAttribute.cs
- XsdDataContractExporter.cs
- SmtpNetworkElement.cs
- CodeCatchClause.cs
- Scene3D.cs
- HtmlLink.cs