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How to interpret: "^\w+[\\]\w+$"

Greetings:

I'm trying to debug code written by another developer. What happens is the user is prompted to enter a domain and user name in order to proceed. The code looks like this:

s.Owner = InputBox.Show(InputBox.IOptions.O_Cancel, ..., @"^\w+[\\]\w+$", @" Enter domain\username");

I'm guessing that after the user clicks the 'OK' button, the domain and user name are processed via the regular expression. If I were to enter the following, what should be expected?

MyDomain\JoeUser

Thanks!

John500

ASKER

Also, if I were to test this expression using the utility seen in the picture below, can anyone tell me what the correct steps are to test the expession? I know I have to create the object, but then what?

John500

ASKER

Forgot the file:
regular-expression.JPG

ASKER CERTIFIED SOLUTION

Fernando Soto

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Fernando Soto

In your post using Regular Expression Demo program you do not see a result because the input string is invalid.

"\MyDomain\JoeUser"

The very first character \ causes it to fail because it is not defined by \w as being a first character. The following would be correct:

"MyDomain\JoeUser"

John500

ASKER

Fernando,

Thanks much for the detailed answer.

That's what I needed .... !

Fernando Soto

Not a problem, always glad to help. ;=)

How to interpret: &quot;^\w+[\\]\w+$&quot;

How to interpret: "^\w+[\\]\w+$"