Validate URLs via Regex?

Question

I have the following Regex

"^http\\\\://[a-zA-Z0-9\\\\-\\\\.]+\\\\.[a-zA-Z]{2,3}(/\\\\S*)?$";

But I'm not sure that it's validating URLs correctly. Is anyone able to assist me or see what's wrong with this?

Thanks

What paradigm are you using it? A lot of frameworks have this functionality built in. — Yuriy Faktorovich, Jun 20 '11 at 04:43

score 2 · Answer 1 · edited May 23 '17 at 10:08

2

If you want a solid pattern read here.

Looks like Rakesh some good mods to your existing pattern; however, if I were you I would consider the aforementioned patterns because they are a bit more robust depending on your scenario.

edited May 23 '17 at 10:08

Community

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answered Jun 20 '11 at 04:53

Mike Veigel

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Rakesh Sankar · Accepted Answer · 2011-06-20T05:05:52.340

1

Try this, there a quite a bit of escapes "/" in your version

var subUrlSTR = "http://subdomain.stackoverflow.com";
var urlSTR = "http://stackoverflow.com";
var result = /http:\/\/[A-Za-z0-9\.-]{3,}\.[A-Za-z]{3}/;
console.log(subUrlSTR.match(result));
console.log(urlSTR.match(result));

See it working here

edited Jun 20 '11 at 05:05

answered Jun 20 '11 at 04:43

Rakesh Sankar

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thanks a lot :) I do only want to match http://*.example.com where * can be any valid ? So i.e. http://www.example.com or http://blog.example.com ? – Tom Jun 20 '11 at 05:01

score 0 · Answer 3 · answered Jun 20 '11 at 05:00

0

if (Uri.TryCreate(stringUrl, UriKind.Absolute, out uri))
{
    ...
}

answered Jun 20 '11 at 05:00

Yuriy Faktorovich

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Validate URLs via Regex?

3 Answers3