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
- Composition.cs
- BitmapSizeOptions.cs
- InvalidWorkflowException.cs
- ActivityWithResultWrapper.cs
- RuleConditionDialog.Designer.cs
- Keyboard.cs
- DictionarySurrogate.cs
- CryptoApi.cs
- FormViewInsertEventArgs.cs
- XmlElementList.cs
- PasswordPropertyTextAttribute.cs
- InvokeHandlers.cs
- PropertyGridView.cs
- LogicalExpr.cs
- XsdDuration.cs
- HwndSourceKeyboardInputSite.cs
- DataControlButton.cs
- Point3DCollection.cs
- WpfKnownMember.cs
- ColumnBinding.cs
- MutexSecurity.cs
- OleDbInfoMessageEvent.cs
- AssemblyGen.cs
- MessageQueuePermissionAttribute.cs
- WindowsListViewGroup.cs
- AttachedPropertyBrowsableForTypeAttribute.cs
- TemplateBindingExtension.cs
- QueryStringParameter.cs
- SapiRecoInterop.cs
- OleDbFactory.cs
- ConfigsHelper.cs
- BatchParser.cs
- BaseCodeDomTreeGenerator.cs
- WindowsToolbarItemAsMenuItem.cs
- Transactions.cs
- WebControlToolBoxItem.cs
- DateTimeFormat.cs
- WindowsStartMenu.cs
- Privilege.cs
- PageCache.cs
- UrlAuthFailureHandler.cs
- ActivitySurrogateSelector.cs
- RangeValidator.cs
- MultipleViewPattern.cs
- ActivityStatusChangeEventArgs.cs
- UIElementCollection.cs
- BroadcastEventHelper.cs
- SingleQueryOperator.cs
- DataShape.cs
- SortDescriptionCollection.cs
- DataReceivedEventArgs.cs
- XmlSubtreeReader.cs
- LazyInitializer.cs
- CultureInfoConverter.cs
- DesignerActionItemCollection.cs
- TaskFactory.cs
- DmlSqlGenerator.cs
- AxisAngleRotation3D.cs
- WrappedReader.cs
- TemplatePropertyEntry.cs
- TextViewBase.cs
- SpecularMaterial.cs
- CryptoApi.cs
- ComponentEditorForm.cs
- EmptyStringExpandableObjectConverter.cs
- OdbcConnectionPoolProviderInfo.cs
- DataControlFieldHeaderCell.cs
- EntityTemplateFactory.cs
- ExpandSegmentCollection.cs
- MessageHeaderInfoTraceRecord.cs
- _HelperAsyncResults.cs
- TextElementAutomationPeer.cs
- AxWrapperGen.cs
- TemplatePropertyEntry.cs
- WorkItem.cs
- NetTcpSection.cs
- SqlCharStream.cs
- SiteIdentityPermission.cs
- AddInAttribute.cs
- GestureRecognizer.cs
- DataTableMappingCollection.cs
- ChannelManager.cs
- GraphicsPath.cs
- SqlMethodAttribute.cs
- LassoHelper.cs
- XmlNodeReader.cs
- ValidatorCollection.cs
- AssociatedControlConverter.cs
- ListBox.cs
- EdmProviderManifest.cs
- GregorianCalendar.cs
- TextFormatterContext.cs
- TriggerAction.cs
- ToolStripContentPanel.cs
- SpeechSeg.cs
- SessionStateContainer.cs
- Merger.cs
- Config.cs
- TraceHandlerErrorFormatter.cs
- ipaddressinformationcollection.cs