Regular Match timeout processing

When you use regular matching to compare large data, the program time-out does not eject abnormally, and the computer CPU reaches 100%

In. Net4.5 Microsoft has improved methods, direct invocation is very convenient, but. Net4.5 below it, write down the way you find it.

1,. In Net4.5:

Regex reg = new Regex (regular, Regexoptions.ignorecase, Timespan.fromseconds (2));

Timespan.fromseconds is the set timeout time, such as the return is empty, fromseconds=2 is seconds, you can set the Minutes hours

2,. In Net4.0:

1 /// <summary>2         ///Regular parsing3         /// </summary>4         /// <param name= "regex" >Regular Objects</param>5         /// <param name= "Input" >the string to parse</param>6         /// <param name= "Outtimemilliseconds" >Timeout period</param>7         /// <returns></returns>8          Public StaticMatchCollection matchs (Regex regex,stringInputintouttimemilliseconds)9         {TenMatchCollection MC =NULL; OneAutoResetEvent is =NewAutoResetEvent (false); AThread T =NewThread (Delegate() -             { -MC =regex. Matches (input); the                 //Note that it is important to traverse all the matches here once, otherwise, if you traverse outside of this method. Wait conditions may also occur -                 foreach(Match minchMC) {} - Is . Set (); -             }); + T.start (); -Wait (t, Timespan.frommilliseconds (Outtimemilliseconds), is,NULL); +             returnMC; A         } at  -         /// <summary> -         ///wait for method execution to complete, or time out -         /// </summary> -         /// <param name= "T" ></param> -         /// <param name= "Outtime" ></param> in         /// <param name= "Ares" ></param> -         Private Static voidWait (Thread t, TimeSpan Outtime, WaitHandle is, WaitHandle CancelEvent) to         { + waithandle[] Ares; -             if(CancelEvent = =NULL) theAres =Newwaithandle[] {is}; *             Else $Ares =Newwaithandle[] {is, cancelevent};Panax Notoginseng             intindex =WaitHandle.WaitAny (Ares, outtime); -             if(Index! =0) && t.isalive)//if the signal is not executed, and the thread is still executing, end the thread the             { + T.abort (); At =NULL; the             } +         } -  $         /// <summary> $         ///Regular parsing -         /// </summary> -         /// <param name= "regex" >Regular Objects</param> the         /// <param name= "Input" >the string to parse</param> -         /// <param name= "Outtimemilliseconds" >Timeout period</param>Wuyi         /// <returns></returns> the          Public StaticMatch match (Regex regex,stringInputintouttimemilliseconds) -         { WuMatch m =NULL; -AutoResetEvent is =NewAutoResetEvent (false); AboutThread T =NewThread (Delegate() {m =regex. Match (input); Is. Set (); }); $ T.start (); -Wait (t, Timespan.frommilliseconds (Outtimemilliseconds), is,NULL); -             returnm; -}

View Code

Regular Match timeout processing