[2.0] Regex match if it doesn't end with?

I basically want a regex expression that only matches if the string doesn't end in ".php".

The only thing I know of would be "[^.php]". But because of how [^x] works, it would also match things ending in "php.", etc.

I think the regex you want is: \.php$ and then just do a not of the IsMatch()

Hey,

Where are you getting the string from? Are you looping through a set of files on the file system? If so, why not use the methods on the Path Class:

http://msdn.microsoft.com/en-us/libr...h_methods.aspx

Such as, GetExtension:

http://msdn.microsoft.com/en-us/libr...extension.aspx

Just thought I would put it out there as an alternative.

Hope that helps!!

Gary

Both options are very workable :) To use "pure" regex, a negative look-behind assertion would be what you're after:

Code:

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Regex t = new Regex(@".*$(?<!\.php)");
Console.WriteLine(t.IsMatch("myfile.txt") + "  *" + t.Match("myfile.txt").Value + "*");
Console.WriteLine(t.IsMatch("myfile.php") + "  *" + t.Match("myfile.php").Value + "*");
Console.WriteLine(t.IsMatch("myfile.php.txt") + "  *" + t.Match("myfile.php.txt").Value + "*");

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