Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Text / EncoderExceptionFallback.cs / 1 / EncoderExceptionFallback.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // EncoderExceptionFallback.cs namespace System.Text { using System; using System.Runtime.Serialization; [Serializable] public sealed class EncoderExceptionFallback : EncoderFallback { // Construction public EncoderExceptionFallback() { } public override EncoderFallbackBuffer CreateFallbackBuffer() { return new EncoderExceptionFallbackBuffer(); } // Maximum number of characters that this instance of this fallback could return public override int MaxCharCount { get { return 0; } } public override bool Equals(Object value) { EncoderExceptionFallback that = value as EncoderExceptionFallback; if (that != null) { return (true); } return (false); } public override int GetHashCode() { return 654; } } public sealed class EncoderExceptionFallbackBuffer : EncoderFallbackBuffer { public override bool Fallback(char charUnknown, int index) { // Fall back our char throw new EncoderFallbackException( Environment.GetResourceString("Argument_InvalidCodePageConversionIndex", (int)charUnknown, index), charUnknown, index); } public override bool Fallback(char charUnknownHigh, char charUnknownLow, int index) { if (!Char.IsHighSurrogate(charUnknownHigh)) { throw new ArgumentOutOfRangeException("charUnknownHigh", Environment.GetResourceString("ArgumentOutOfRange_Range", 0xD800, 0xDBFF)); } if (!Char.IsLowSurrogate(charUnknownLow)) { throw new ArgumentOutOfRangeException("CharUnknownLow", Environment.GetResourceString("ArgumentOutOfRange_Range", 0xDC00, 0xDFFF)); } int iTemp = Char.ConvertToUtf32(charUnknownHigh, charUnknownLow); // Fall back our char throw new EncoderFallbackException( Environment.GetResourceString("Argument_InvalidCodePageConversionIndex", iTemp, index), charUnknownHigh, charUnknownLow, index); } public override char GetNextChar() { return (char)0; } public override bool MovePrevious() { // Exception fallback doesn't have anywhere to back up to. return false; } // Exceptions are always empty public override int Remaining { get { return 0; } } } [Serializable] public sealed class EncoderFallbackException : ArgumentException { char charUnknown; char charUnknownHigh; char charUnknownLow; int index; public EncoderFallbackException() : base(Environment.GetResourceString("Arg_ArgumentException")) { SetErrorCode(__HResults.COR_E_ARGUMENT); } public EncoderFallbackException(String message) : base(message) { SetErrorCode(__HResults.COR_E_ARGUMENT); } public EncoderFallbackException(String message, Exception innerException) : base(message, innerException) { SetErrorCode(__HResults.COR_E_ARGUMENT); } internal EncoderFallbackException(SerializationInfo info, StreamingContext context) : base(info, context) { } internal EncoderFallbackException( String message, char charUnknown, int index) : base(message) { this.charUnknown = charUnknown; this.index = index; } internal EncoderFallbackException( String message, char charUnknownHigh, char charUnknownLow, int index) : base(message) { if (!Char.IsHighSurrogate(charUnknownHigh)) { throw new ArgumentOutOfRangeException("charUnknownHigh", Environment.GetResourceString("ArgumentOutOfRange_Range", 0xD800, 0xDBFF)); } if (!Char.IsLowSurrogate(charUnknownLow)) { throw new ArgumentOutOfRangeException("CharUnknownLow", Environment.GetResourceString("ArgumentOutOfRange_Range", 0xDC00, 0xDFFF)); } this.charUnknownHigh = charUnknownHigh; this.charUnknownLow = charUnknownLow; this.index = index; } public char CharUnknown { get { return (charUnknown); } } public char CharUnknownHigh { get { return (charUnknownHigh); } } public char CharUnknownLow { get { return (charUnknownLow); } } public int Index { get { return index; } } // Return true if the unknown character is a surrogate pair. public bool IsUnknownSurrogate() { return (this.charUnknownHigh != '\0'); } } }
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- TreeView.cs
- SBCSCodePageEncoding.cs
- MLangCodePageEncoding.cs
- ReaderWriterLockWrapper.cs
- ToolTipService.cs
- FontUnit.cs
- FileSecurity.cs
- PanelDesigner.cs
- TransformerTypeCollection.cs
- XmlFileEditor.cs
- SingleAnimation.cs
- XmlAggregates.cs
- ObfuscationAttribute.cs
- XPathPatternBuilder.cs
- DataGridViewSelectedCellCollection.cs
- FontStyle.cs
- WebServiceMethodData.cs
- StringResourceManager.cs
- RepeatButtonAutomationPeer.cs
- PersonalizationStateInfo.cs
- PagesChangedEventArgs.cs
- DataGridViewLinkCell.cs
- SqlHelper.cs
- WsdlInspector.cs
- SelectionPattern.cs
- LineServicesRun.cs
- DeviceSpecific.cs
- HyperLinkField.cs
- ApplicationServicesHostFactory.cs
- XPathDocumentNavigator.cs
- StylusPointPropertyUnit.cs
- ForeignKeyConstraint.cs
- CodeDirectoryCompiler.cs
- DocumentViewerConstants.cs
- UnmanagedMemoryStream.cs
- WebConfigurationHostFileChange.cs
- COM2TypeInfoProcessor.cs
- DataObjectFieldAttribute.cs
- Graph.cs
- ProjectedSlot.cs
- ObjectStateEntry.cs
- StringConcat.cs
- LoginCancelEventArgs.cs
- CharEnumerator.cs
- IsolatedStorage.cs
- SqlDataSourceCommandEventArgs.cs
- SystemUdpStatistics.cs
- ClientScriptManager.cs
- XmlLoader.cs
- __ConsoleStream.cs
- WebPartTransformerAttribute.cs
- LinqDataSource.cs
- OrthographicCamera.cs
- WebBrowserSiteBase.cs
- DoubleKeyFrameCollection.cs
- FontFamily.cs
- UnsafeNativeMethods.cs
- CompModSwitches.cs
- C14NUtil.cs
- MulticastDelegate.cs
- DoubleAnimationClockResource.cs
- XmlValidatingReader.cs
- WeakEventTable.cs
- DataGridPageChangedEventArgs.cs
- Win32NamedPipes.cs
- UnsafeNativeMethods.cs
- CuspData.cs
- DesignerOptionService.cs
- TemplatePropertyEntry.cs
- QilPatternVisitor.cs
- TextTrailingCharacterEllipsis.cs
- XmlSchemaSimpleTypeUnion.cs
- DataBindingHandlerAttribute.cs
- ResourceDictionaryCollection.cs
- Privilege.cs
- SafeCloseHandleCritical.cs
- ThrowHelper.cs
- HttpPostedFile.cs
- ChannelManager.cs
- MatrixConverter.cs
- QilList.cs
- HttpGetClientProtocol.cs
- ScriptingScriptResourceHandlerSection.cs
- SqlParameter.cs
- TreeWalkHelper.cs
- LiteralDesigner.cs
- StyleHelper.cs
- XmlText.cs
- AddressHeader.cs
- LinearKeyFrames.cs
- CacheVirtualItemsEvent.cs
- ISessionStateStore.cs
- ViewKeyConstraint.cs
- WebPartZoneAutoFormat.cs
- XPathNode.cs
- MD5.cs
- RequestCacheValidator.cs
- PathData.cs
- XmlDeclaration.cs
- IisTraceListener.cs