JavaScript Regex for URL when the URL may or may not contain HTTP and WWW

Question

I am using JavaScript regex that will check for the URL.

(?i)\b((?:[a-z][\w-]+:(?:/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))

I use this Regex to send messages to Twitter. What happens is that this makes sure that the URL contains WWW and/or HTTP.

But the problem is if the URL is like Guaridan.com.uk Twitter consideres it as a URL.

So how can I modify my Regex that it will not check for HTTP or WWW, meaning if it is there then it would not take any effect.

So it would match like My.co.com or dummy.com.in.

If you use jquery, why don't use use jquery's URL validation routines? — fge
– fge, Commented Jan 4, 2012 at 10:31
@fge i dont know anything about it. can you post some example — Moons
– Moons, Commented Jan 4, 2012 at 10:33
Tested www.guardian.co.uk in the referred jQuery page, it does not validate. — pakopa
– pakopa, Commented Jan 10, 2012 at 10:16
@fge there is nothing in the jQuery API regarding url validation. Pehraps you are thinking about plugins — charlietfl
– charlietfl, Commented Nov 12, 2012 at 5:18

pakopa · Accepted Answer · 2012-01-04 14:50:08Z

1

If you want to match just domain names you have to match almost any word plus ".", "_" and "-" signs. An approach may be match at least the root domains (.com,.net,.us,.co.uk,.es,.fr ... and so on) but the list will be huge. You may want to match just anything that has dot separated words, not that it is going to be a domain for sure but you might try connecting to it.

This regex: ([\d\w]+?:\/\/)?([\w\d\.\-]+)(\.\w+)(:\d{1,5})?(\/\S*)?

will match:

group 1 as protocol:// (optional)
group 2 concat group 3 as domain
group 3 is the top level domain
group 4 as :port (optional)
group 5 as query (optional)

answered Jan 4, 2012 at 14:50

pakopa

7031 gold badge5 silver badges8 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Jason Sturges · Accepted Answer · 2012-11-12 05:21:23Z

1

jQuery regular expression for www and http URL format.

Regular expression that accept www as well as http URL is given below:

var pattern = /(?:https?:\/\/)?(?:www\.)?(?:https?:\/\/)?(?:www\.)(?:https?:\/\/)?(?:www\.)?(\/\S*)?/;

Regular expression that accept www, http, abc.com is given below:

var pattern = ([\d\w]+?:\/\/)?([\w\d\.\-]+)(\.\w+)(:\d{1,5})?(\/\S*)?

edited Nov 12, 2012 at 5:21

Jason Sturges

16k14 gold badges63 silver badges82 bronze badges

answered Nov 12, 2012 at 4:52

miss shaikh

111 bronze badge

2 Comments

Mateng Over a year ago

Welcome to SO! Can you reformat your answer a little, putting the Regex into code brackets? Also recheck for typos, please.

miss shaikh Over a year ago

its up to ur need where u using this Regex, just put urself code brackets or semicolon.like i add this Regex in my jqueryvalidation.js as "url": { "regex": /(?:https?:\/\/)?(?:www\.)?(?:https?:\/\/)?(?:www\.)(?:https?:\/\/)?(?:www\.)?(\/\S*)?/i, "alertText": "* Invalid URL" }

Jignesh Patel - Web Developer · Accepted Answer · 2014-10-17 12:47:35Z

0

Try This...

/^http:\/\/|(www\.)?[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}(:[0-9]{1,5})?(\/.*)?$/

It's working exactly what peoples are want.

it takes with or with out http://, https://, and www.

edited Oct 17, 2014 at 12:47

answered Oct 17, 2014 at 12:16

Jignesh Patel - Web Developer

1112 silver badges6 bronze badges

Collectives™ on Stack Overflow

JavaScript Regex for URL when the URL may or may not contain HTTP and WWW

3 Answers 3

Comments

2 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related