Regular expession for domain name

Question

Can someone please tell regular expression for this:

anytext.com
anytext.org
anytext.net
anytext.mil
anytext.gov

The requirement is any text given except these domain names (org, net, com, gov, mit) should be invalid.

Cuurently I am giving this regular expression which is not working:

/^[\w-\.]+.(?com)(?org)(?mil)(?net)(?edu)(?gov)?$/

`\w` includes underscores which are not allowed in internet domain names. — Richard, Jul 05 '17 at 08:46
@Richard: [sure?](https://stackoverflow.com/a/2183140/989121) — georg, Jul 05 '17 at 08:47
Anything wrong with a simple alternation? `(com|org|mil|net|edu|)` — CBroe, Jul 05 '17 at 08:48
i want only the above mentioned list to work, anything else after dot(.) should be invalid like : groupinfra.xyz — user3766619, Jul 05 '17 at 08:50
@georg Yes, but I should have said *host*names of course (and any URL uses hostnames). — Richard, Jul 05 '17 at 08:51
@user3766619 That will match `www.milmilmilgovcomorg` because you allow repetition of the TLD part. It also doesn't match `experts-exchange.com` (I'll now wash my keyboard :-) ). — Richard, Jul 05 '17 at 09:29

score 2 · Answer 1 · answered Jul 05 '17 at 08:48

2

This should work for you:

var regexp = /^[A-Za-z0-9-\.]+\.(com|org|mil|net|gov)$/

console.log('anytext.com', regexp.test('anytext.com'))

answered Jul 05 '17 at 08:48

dloeda

1

Just an FYI, this is very "anglo-centric". – evolutionxbox Jul 05 '17 at 08:48
Yes, it's not exactly "any text" – Caius Jard Jul 05 '17 at 08:49
@evolutionxbox Could you explain a little bit?, please – dloeda Jul 05 '17 at 08:53
You're only matching the latin alphabet. What about non-latin alphabet URLs? – evolutionxbox Jul 05 '17 at 08:55
@evolutionxbox Are internationalised characters allowed within .com/.net/.mil/.gov? – Richard Jul 05 '17 at 09:31
@evolutionxbox I suppose that depends on the problem. If your solution doesn't need non-latin alphabet the solution is more readable. But, How do you match all non-latin allowed chars? – dloeda Jul 05 '17 at 09:35
@dloeda Honestly, I wasn't saying your solution was wrong. I had only hoped to make note that it was a solution which only supports a portion of web users. – evolutionxbox Jul 05 '17 at 09:36
@evolutionxbox sorry if I seem rude, it isn't my intention. I search in SO about that and they sort out via Unicode matching. Thanks for question this, really appreciated it – dloeda Jul 05 '17 at 09:40

1 Answers1