Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Net / System / Net / _ShellExpression.cs / 1 / _ShellExpression.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Net { using System; internal struct ShellExpression { private enum ShExpTokens { Asterisk = -1, Question = -2, AugmentedDot = -3, AugmentedAsterisk = -4, AugmentedQuestion = -5, Start = -6, End = -7 } private ShExpTokens[] pattern; private int[] match; // Normally would defer parsing, but we want to throw here if it's invalid. internal ShellExpression(string pattern) { this.pattern = null; this.match = null; GlobalLog.Print("ShellServices.ShellExpression#" + ValidationHelper.HashString(this) + "::.ctor() pattern:" + ValidationHelper.ToString(pattern)); Parse(pattern); } /* // Consider removing. internal void SetPattern(string pattern) { GlobalLog.Print("ShellServices.ShellExpression#" + ValidationHelper.HashString(this) + "::SetPattern() pattern:" + ValidationHelper.ToString(pattern)); Parse(pattern); } */ internal bool IsMatch(string target) { GlobalLog.Print("ShellServices.ShellExpression#" + ValidationHelper.HashString(this) + "::IsMatch() target:" + ValidationHelper.ToString(target)); int i = 0; int j = 0; bool reverse = false; bool matched = false; while (true) { if (!reverse) { if (j > target.Length) { break; } switch (pattern[i]) { case ShExpTokens.Asterisk: match[i++] = j = target.Length; continue; case ShExpTokens.Question: if (j == target.Length) { reverse = true; } else { match[i++] = ++j; } continue; case ShExpTokens.AugmentedDot: if (j == target.Length) { match[i++] = j; } else if (target[j] == '.') { match[i++] = ++j; } else { reverse = true; } continue; case ShExpTokens.AugmentedAsterisk: if (j == target.Length || target[j] == '.') { reverse = true; } else { match[i++] = ++j; } continue; case ShExpTokens.AugmentedQuestion: if (j == target.Length || target[j] == '.') { match[i++] = j; } else { match[i++] = ++j; } continue; case ShExpTokens.Start: if (j != 0) { break; } match[i++] = 0; continue; case ShExpTokens.End: if (j == target.Length) { matched = true; break; } reverse = true; continue; default: if (j < target.Length && (int) pattern[i] == (int) char.ToLowerInvariant(target[j])) { match[i++] = ++j; } else { reverse = true; } continue; } } else { switch (pattern[--i]) { case ShExpTokens.Asterisk: case ShExpTokens.AugmentedQuestion: if (match[i] != match[i - 1]) { j = --match[i++]; reverse = false; } continue; case ShExpTokens.Start: case ShExpTokens.End: break; case ShExpTokens.Question: case ShExpTokens.AugmentedDot: case ShExpTokens.AugmentedAsterisk: default: continue; } } break; } GlobalLog.Print("ShellServices.ShellExpression#" + ValidationHelper.HashString(this) + "::IsMatch() return:" + matched.ToString()); return matched; } private void Parse(string patString) { pattern = new ShExpTokens[patString.Length + 2]; // 2 for the start, end match = null; int i = 0; pattern[i++] = ShExpTokens.Start; for (int j = 0; j < patString.Length; j++) { switch (patString[j]) { case '?': pattern[i++] = ShExpTokens.Question; break; case '*': pattern[i++] = ShExpTokens.Asterisk; break; case '^': if (j < patString.Length - 1) { j++; } else { pattern = null; if (Logging.On) Logging.PrintWarning(Logging.Web, SR.GetString(SR.net_log_shell_expression_pattern_format_warning, patString)); throw new FormatException(SR.GetString(SR.net_format_shexp, patString)); } switch (patString[j]) { case '.': pattern[i++] = ShExpTokens.AugmentedDot; break; case '?': pattern[i++] = ShExpTokens.AugmentedQuestion; break; case '*': pattern[i++] = ShExpTokens.AugmentedAsterisk; break; default: pattern = null; if (Logging.On) Logging.PrintWarning(Logging.Web, SR.GetString(SR.net_log_shell_expression_pattern_format_warning, patString)); throw new FormatException(SR.GetString(SR.net_format_shexp, patString)); } break; default: pattern[i++] = (ShExpTokens) (int) char.ToLowerInvariant(patString[j]); break; } } pattern[i++] = ShExpTokens.End; match = new int[i]; } } }
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SmiContext.cs
- HttpModulesSection.cs
- basevalidator.cs
- ServiceKnownTypeAttribute.cs
- LocatorGroup.cs
- UnsafeNativeMethods.cs
- DSASignatureDeformatter.cs
- ToolCreatedEventArgs.cs
- PropertyTabChangedEvent.cs
- ProxySimple.cs
- PreviewPageInfo.cs
- CodeIdentifier.cs
- DrawingAttributeSerializer.cs
- LinqDataSourceInsertEventArgs.cs
- Int32RectValueSerializer.cs
- BitmapEffect.cs
- RoleServiceManager.cs
- Rfc4050KeyFormatter.cs
- DoubleCollectionConverter.cs
- StylusPointPropertyInfoDefaults.cs
- Parameter.cs
- TextBoxView.cs
- StateManagedCollection.cs
- RuntimeWrappedException.cs
- RedirectionProxy.cs
- MultiView.cs
- ExpressionTextBox.xaml.cs
- BinaryReader.cs
- RuntimeWrappedException.cs
- SecurityRequiresReviewAttribute.cs
- mongolianshape.cs
- WizardStepBase.cs
- FontWeights.cs
- DBConcurrencyException.cs
- PolicyLevel.cs
- EncoderFallback.cs
- TreeView.cs
- TemplatePropertyEntry.cs
- ComAwareEventInfo.cs
- VarRemapper.cs
- FontFamilyValueSerializer.cs
- ProviderCommandInfoUtils.cs
- Encoder.cs
- ScrollContentPresenter.cs
- WhitespaceSignificantCollectionAttribute.cs
- HttpRequestTraceRecord.cs
- MarkupCompilePass2.cs
- XmlHierarchicalDataSourceView.cs
- XmlAtomicValue.cs
- BuiltInExpr.cs
- HttpHeaderCollection.cs
- ColumnResult.cs
- DesignBindingConverter.cs
- HtmlInputPassword.cs
- SecurityRuntime.cs
- XPathChildIterator.cs
- HttpModulesSection.cs
- AutoSizeComboBox.cs
- AnnotationComponentManager.cs
- QuaternionValueSerializer.cs
- CapiHashAlgorithm.cs
- TextReader.cs
- SqlProviderServices.cs
- LocalizableAttribute.cs
- FixedPageStructure.cs
- Stopwatch.cs
- Assembly.cs
- EditorPartChrome.cs
- IssuanceLicense.cs
- DocumentAutomationPeer.cs
- BaseDataListActionList.cs
- AsyncPostBackErrorEventArgs.cs
- AssemblyFilter.cs
- CompiledRegexRunner.cs
- ConfigXmlCDataSection.cs
- PixelShader.cs
- RegistryPermission.cs
- AstNode.cs
- DataGridLinkButton.cs
- RectangleHotSpot.cs
- VideoDrawing.cs
- SynchronizedDispatch.cs
- MultilineStringConverter.cs
- RegistryPermission.cs
- OleDbInfoMessageEvent.cs
- PreservationFileReader.cs
- ModelItemCollectionImpl.cs
- BitmapDownload.cs
- HtmlControl.cs
- ListViewSelectEventArgs.cs
- ListBoxItemWrapperAutomationPeer.cs
- ValidatorCollection.cs
- Activator.cs
- SnapLine.cs
- HtmlDocument.cs
- TranslateTransform3D.cs
- SafeBitVector32.cs
- GeometryGroup.cs
- UIHelper.cs
- TypeSemantics.cs