Select a HostName with Regex in C# ?

[Mohammad Dayyan]

Hi, There are some addresses as follows :

http://rs320tl.rapidshare.com/files/119371167/sth.rar

I'm gonna select rs320tl.rapidshare.com with Regex, but I'm not familiar with Regular Expressions. Would you please guide me ? Thanks. PS. rs320tl in the address is variable.

[tonyonlinux]

^(ftp|http|file)://([^/]+)(/.*)?(/.*)

so

http :// www.codeproject.com /forum /xxx.html
1 2 3 4

so the reg expression would spit out $1 = http $2 = www.codeproject.com $3 = /forum $4 = /xxx.html hope this helps.

[AspDotNetDev]

Try this instead of a Regex:

MessageBox.Show((new Uri("http://rs320tl.rapidshare.com/files/119371167/sth.rar")).Host);

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[OriginalGriff]

I didn't know that a Uri broke it down for you - thanks for that!:thumbsup:

You should never use standby on an elephant. It always crashes when you lift the ears. - Mark Wallace C/C++ (I dont see a huge difference between them, and the 'benefits' of C++ are questionable, who needs inheritance when you have copy and paste) - fat_boy

[Gaurav Dudeja India]

Under which namespace .host is come

[AspDotNetDev]

I think you mean Uri. It's in the System namespace.

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[Mohammad Dayyan]

Thanks, but it throws an Exceptions on

MessageBox.Show((new Uri("rs320tl.rapidshare.com")).Host);

[Mohammad Dayyan]

Thanks, How can I store $2 in a string?

[AspDotNetDev]

Try this:

MessageBox.Show((new UriBuilder("rs320tl.rapidshare.com")).Host);

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[AspDotNetDev]

string str = (new Regex("the pattern")).Match("the string").Groups[2].Value;

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[Mohammad Dayyan]

It doesn't work with www.codeproject.com