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DZone > Performance Zone > How to run regular expressions faster in C#

How to run regular expressions faster in C#

Senthil Kumar user avatar by
Senthil Kumar
·
Apr. 08, 15 · Performance Zone · Interview
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If you want the regular expression to run faster , you can set the RegexOptions.Compiled value to the regex constructor. This will compile the regex in to their own assembly which will run a little faster.

Below is a sample code snippet demonstrating the usage of RegexOptions.Compiled.

//  Validating a Zip codes in C# using Regular Expression
2
string GKZipCode = @"^\d{5}(-?\d{4})?$";
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Regex regex = new Regex(GKZipCode, RegexOptions.Compiled);
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bool Matching = regex.IsMatch("15689");
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Console.WriteLine(Matching);
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Console.ReadLine();


Snippet (programming) Assembly (CLI)

Published at DZone with permission of Senthil Kumar, DZone MVB. See the original article here.

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