Problem with RegEx in ServiceNow

[Community Alums]

So I have a requirement to allow URLs, No spaces and comma delimited.  A dash "-" is allowed just not at beginning or beside a period "." And lastly * is only available in the first portion of the URL. I have create a regular expression that passes via regex101, but in my ServiceNow instance it fails.

Pass would be:

www.test.com
www.example.com,www-01.user.com,www.user-test.com,*.example.com
*.example.com,test.user.com

Fail:

www*.example.com
-www.example.com
www-.example.com
www.-example.com

Here is my RegEx:

^(([a-zA-Z0-9-]{1,}[a-zA-Z0-9]{1,150}\.[a-zA-Z0-9]{1,150}[a-zA-Z0-9-]{1,150}\.[a-zA-Z0-9]{1,150})|^([*]{1,1}\.[a-zA-Z0-9]{1,150}[a-zA-Z0-9-]{1,150}\.[a-zA-Z0-9]{1,150}))|((\,[a-zA-Z0-9-]{1,}[a-zA-Z0-9]{1,150}\.[a-zA-Z0-9]{1,150}[a-zA-Z0-9-]{1,150}\.[a-zA-Z0-9]{1,150})|(\,[*]{1,1}\.[a-zA-Z0-9]{1,150}[a-zA-Z0-9-]{1,150}\.[a-zA-Z0-9]{1,150}))

[Sasha Sobolev]

It is working in my test - do you have it set up this way?

using - ^(([a-zA-Z0-9]+([a-zA-Z0-9-]*[a-zA-Z0-9]+|[a-zA-Z0-9]*)|\*)\.[a-zA-Z0-9]+([a-zA-Z0-9-]*[a-zA-Z0-9]+|[a-zA-Z0-9]*)\.[a-zA-Z0-9]+([a-zA-Z0-9-]*[a-zA-Z0-9]+|[a-zA-Z0-9]*))

[Community Alums · Accepted solution]

I got the Client script version to work, the user can enter values in a single field and the array works perfect.  The script you posted the test line was backwards.

 if (!urlArray[x].test(re))

should actually be (!re.test(urlArray[x])) and then it worked perfectly.  Also I mistakenly had a return true from the client script Yousaf provided below.  I also got the - to work in beginning and not near a . and I got only the since * to work.  Here is my final solution.

function onChange(control, oldValue, newValue, isLoading, isTemplate) {
    if (isLoading || newValue == '') {
        return;
    }
    var urlArray = [];
    var urlField = g_form.getValue('provide_url');
    urlArray = urlField.split(',');
    // This will restrict the usages of certain special characters. 
    
    var re = /^(([a-zA-Z0-9-]{1,}[a-zA-Z0-9]{1,}\.[a-zA-Z0-9]{1,}[a-zA-Z0-9-]{1,150}\.[a-zA-Z0-9]{1,})|^([*]{1,1}\.[a-zA-Z0-9]{1,}[a-zA-Z0-9-]{1,}\.[a-zA-Z0-9]{1,}))$/;
    
    for (var x = 0; x < urlArray.length; x++) {
        if (!re.test(urlArray[x])) {
            g_form.showFieldMsg('provide_url','Invalid URL entry, please exclude slashes, colons and spaces.','error');
            return false;
        }
    }
}

[Yousaf]

Hi Brian,

I guess its working please check and let me know just removed -

^(([a-zA-Z0-9]{1,}[a-zA-Z0-9]{1,150}\.[a-zA-Z0-9]{1,150}[a-zA-Z0-9-]{1,150}\.[a-zA-Z0-9]{1,150})|^([*]{1,1}\.[a-zA-Z0-9]{1,150}[a-zA-Z0-9-]{1,150}\.[a-zA-Z0-9]{1,150}))|((\,[a-zA-Z0-9-]{1,}[a-zA-Z0-9]{1,150}\.[a-zA-Z0-9]{1,150}[a-zA-Z0-9-]{1,150}\.[a-zA-Z0-9]{1,150})|(\,[*]{1,1}\.[a-zA-Z0-9]{1,150}[a-zA-Z0-9-]{1,150}\.[a-zA-Z0-9]{1,150}))

[Community Alums]

www.user.com,www-www.text.com,www.w-user.com,*.example.com 

Came back as invalid for your string as well.

[Yousaf]

Accepting here weird.