Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / Configuration / CapabilitiesPattern.cs / 1305376 / CapabilitiesPattern.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.Configuration { using System.Collections; using System.Collections.Specialized; using System.Diagnostics; using System.Globalization; using System.Reflection; using System.Security; using System.Text; using System.Text.RegularExpressions; using System.Threading; using System.Web.Caching; using System.Web.Compilation; using System.Web.Hosting; using System.Security.Permissions; // // Represents a single pattern to be expanded // internal class CapabilitiesPattern { internal String[] _strings; internal int[] _rules; internal const int Literal = 0; // literal string internal const int Reference = 1; // regex reference ${name} or $number internal const int Variable = 2; // regex reference %{name} internal static readonly Regex refPat = new Regex("\\G\\$(?:(?\\d+)|\\{(? \\w+)\\})"); internal static readonly Regex varPat = new Regex("\\G\\%\\{(? \\w+)\\}"); internal static readonly Regex textPat = new Regex("\\G[^$%\\\\]*(?:\\.[^$%\\\\]*)*"); internal static readonly Regex errorPat = new Regex(".{0,8}"); internal static readonly CapabilitiesPattern Default = new CapabilitiesPattern(); internal CapabilitiesPattern() { _strings = new String[1]; _strings[0] = String.Empty; _rules = new int[1]; _rules[0] = Variable; } internal CapabilitiesPattern(String text) { ArrayList strings = new ArrayList(); ArrayList rules = new ArrayList(); int textpos = 0; for (;;) { Match match = null; // 1: scan text if ((match = textPat.Match(text, textpos)).Success && match.Length > 0) { rules.Add(Literal); strings.Add(Regex.Unescape(match.ToString())); textpos = match.Index + match.Length; } if (textpos == text.Length) break; // 2: look for regex references if ((match = refPat.Match(text, textpos)).Success) { rules.Add(Reference); strings.Add(match.Groups["name"].Value); } // 3: look for variables else if ((match = varPat.Match(text, textpos)).Success) { rules.Add(Variable); strings.Add(match.Groups["name"].Value); } // 4: encountered a syntax error ( else { match = errorPat.Match(text, textpos); throw new ArgumentException( SR.GetString(SR.Unrecognized_construct_in_pattern, match.ToString(), text)); } textpos = match.Index + match.Length; } _strings = (String[])strings.ToArray(typeof(String)); _rules = new int[rules.Count]; for (int i = 0; i < rules.Count; i++) _rules[i] = (int)rules[i]; } internal virtual String Expand(CapabilitiesState matchstate) { StringBuilder sb = null; String result = null; for (int i = 0; i < _rules.Length; i++) { if (sb == null && result != null) sb = new StringBuilder(result); switch (_rules[i]) { case Literal: result = _strings[i]; break; case Reference: result = matchstate.ResolveReference(_strings[i]); break; case Variable: result = matchstate.ResolveVariable(_strings[i]); break; } if (sb != null && result != null) sb.Append(result); } if (sb != null) return sb.ToString(); if (result != null) return result; return String.Empty; } #if DBG internal virtual String Dump() { StringBuilder sb = new StringBuilder(); for (int i = 0; i < _rules.Length; i++) { switch (_rules[i]) { case Literal: sb.Append("\"" + _strings[i] + "\""); break; case Reference: sb.Append("${" + _strings[i] + "}"); break; default: sb.Append("??"); break; } if (i < _rules.Length - 1) sb.Append(" "); } return sb.ToString(); } internal virtual String Dump(String indent) { return indent + Dump() + "\n"; } #endif } } // 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
- WindowPattern.cs
- _CommandStream.cs
- SchemaCreator.cs
- ForwardPositionQuery.cs
- RowsCopiedEventArgs.cs
- DataGridViewTextBoxCell.cs
- XmlProcessingInstruction.cs
- ArrayTypeMismatchException.cs
- WindowsSolidBrush.cs
- SettingsProviderCollection.cs
- OSFeature.cs
- ColumnHeader.cs
- MimeBasePart.cs
- TabRenderer.cs
- TextElementAutomationPeer.cs
- EventWaitHandleSecurity.cs
- OptionalMessageQuery.cs
- XmlKeywords.cs
- FormViewDeletedEventArgs.cs
- ScriptRef.cs
- Maps.cs
- IOException.cs
- WebPartConnection.cs
- ExpressionDumper.cs
- DbConnectionStringBuilder.cs
- DataGridViewImageColumn.cs
- CryptoApi.cs
- MsmqAuthenticationMode.cs
- PLINQETWProvider.cs
- FilteredDataSetHelper.cs
- Columns.cs
- WeakRefEnumerator.cs
- BufferedReceiveElement.cs
- MaterialCollection.cs
- XPathDocumentBuilder.cs
- DependencyObjectPropertyDescriptor.cs
- EditBehavior.cs
- InputProcessorProfiles.cs
- EntityContainer.cs
- TypeUtil.cs
- HttpWriter.cs
- ButtonBase.cs
- IApplicationTrustManager.cs
- WebPartEditorApplyVerb.cs
- EUCJPEncoding.cs
- LayoutSettings.cs
- HtmlLinkAdapter.cs
- MultiPageTextView.cs
- RIPEMD160.cs
- CodeGenerationManager.cs
- ContainerFilterService.cs
- SkipStoryboardToFill.cs
- StreamGeometryContext.cs
- IntegrationExceptionEventArgs.cs
- TypePresenter.xaml.cs
- Win32.cs
- ProcessModule.cs
- HtmlInputPassword.cs
- QilBinary.cs
- AdornedElementPlaceholder.cs
- StreamGeometry.cs
- TagPrefixInfo.cs
- TextPointer.cs
- PreProcessInputEventArgs.cs
- InlineObject.cs
- ExpressionReplacer.cs
- VSWCFServiceContractGenerator.cs
- DataServiceQuery.cs
- ButtonBase.cs
- AcceleratedTokenProvider.cs
- WorkflowInvoker.cs
- MultipartContentParser.cs
- TreeViewHitTestInfo.cs
- FlowPosition.cs
- PropertyBuilder.cs
- XmlC14NWriter.cs
- BulletedList.cs
- TCPListener.cs
- Codec.cs
- QilGeneratorEnv.cs
- ToolStripArrowRenderEventArgs.cs
- DataGridViewAutoSizeColumnModeEventArgs.cs
- WindowsAuthenticationModule.cs
- MessageRpc.cs
- VariableDesigner.xaml.cs
- MasterPageCodeDomTreeGenerator.cs
- CodeGen.cs
- KnownBoxes.cs
- CodeAccessSecurityEngine.cs
- XmlDomTextWriter.cs
- TemplateXamlTreeBuilder.cs
- linebase.cs
- XsltLoader.cs
- ContentValidator.cs
- CodeObjectCreateExpression.cs
- Point3D.cs
- TypeConstant.cs
- TextWriterTraceListener.cs
- TypeDefinition.cs
- SequenceNumber.cs