Question

I have the following regex to check for relative url there is a function that checks the url and returns true if its ok, the following works:

MyCustomPage.aspx?name=John&last=smith&type=Person

But the follwing when i have more than two words in the last name with a space separating them returns false

MyCustomPage.aspx?name=John&last=smith+connors&type=Person

See the +connors, this would not evaluate… but if i remove the check.. it goes through fine..

This is the regex

Regex IsRelative = new Regex(@"^([a-zA-Z0-9]+)+\.[a-zA-Z/]*(((\?)([a-zA-Z]*=\w*)){1}((&)([a-zA-Z]*=\w*))*)?$");

in my function i check if the url is valid based on that regex

IsRelative(MyUrl)

I need it to let it pass if there is a space in there but i am not sure how.. anyhelp would be appreciated.

Answer 1

You should allow plus signs (+) as the argument values:

Regex IsRelative = new Regex(@"^([a-zA-Z0-9]+)+\.[a-zA-Z/]*(((\?)([a-zA-Z]*=[\w\+]*)){1}((&)([a-zA-Z]*=[\w\+]*))*)?$");

Here, I changed \w into [\w\+], where the regex checks for argument values. With this change you will be allowing urls that have plus signs (+) at the right of the equal sign (=) of each argument.