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C# RegexMatchTimeoutException类代码示例

本文整理汇总了C#中System.Text.RegularExpressions.RegexMatchTimeoutException的典型用法代码示例。如果您正苦于以下问题:C# RegexMatchTimeoutException类的具体用法?C# RegexMatchTimeoutException怎么用?C# RegexMatchTimeoutException使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。


RegexMatchTimeoutException类属于System.Text.RegularExpressions命名空间,在下文中一共展示了RegexMatchTimeoutException类的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: Main

//引入命名空间
using System;
using System.ComponentModel;
using System.Diagnostics;
using System.Security;
using System.Text.RegularExpressions;
using System.Threading;

public class Example
{
   const int MaxTimeoutInSeconds = 2;
   
   public static void Main()
   {
      TimeSpan timeout = new TimeSpan(0, 0, 1);
      string input = "aaaaaaaaaaaaaaaaaaaaaa>";
      if (ValidateInput(input, timeout))
         // Perform some operation with valid input string.
         Console.WriteLine("'{0}' is a valid string.", input); 
   } 

   private static bool ValidateInput(string input, TimeSpan timeout)
   {
      string pattern = "(a+)+$";      
      try {
         return Regex.IsMatch(input, pattern, 
                              RegexOptions.IgnoreCase, timeout);
      }
      catch (RegexMatchTimeoutException e) {
         // Increase the timeout interval and retry.
         timeout = timeout.Add(new TimeSpan(0, 0, 1));
         Console.WriteLine("Changing the timeout interval to {0}", 
                           timeout); 
         if (timeout.TotalSeconds <= MaxTimeoutInSeconds) {
            // Pause for a short period.
            Thread.Sleep(250);
            return ValidateInput(input, timeout);
         }   
         else {
            Console.WriteLine("Timeout interval of {0} exceeded.", 
                              timeout);
            // Write to event log named RegexTimeouts
            try {
               if (! EventLog.SourceExists("RegexTimeouts"))
                  EventLog.CreateEventSource("RegexTimeouts", "RegexTimeouts");

               EventLog log = new EventLog("RegexTimeouts");
               log.Source = "RegexTimeouts";
               string msg = String.Format("Timeout after {0} matching '{1}' with '{2}.",
                                          e.MatchTimeout, e.Input, e.Pattern);
               log.WriteEntry(msg, EventLogEntryType.Error);
            }
            // Do nothing to handle the exceptions.
            catch (SecurityException) { }
            catch (InvalidOperationException) { }
            catch (Win32Exception) { }
            return false;
         }   
      }
   }
}
开发者ID:.NET开发者,项目名称:System.Text.RegularExpressions,代码行数:61,代码来源:RegexMatchTimeoutException

输出:

Changing the timeout interval to 00:00:02
Changing the timeout interval to 00:00:03
Timeout interval of 00:00:03 exceeded.


注:本文中的System.Text.RegularExpressions.RegexMatchTimeoutException类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。