Get domainname from string via regular expression

Question

I'm trying to get the domain name from a string. From this URL http://www.tvstore.nl/product/572875/samsung-ue48ju7500.html

I'd like to get www.tvstore.nl as a result. However, with this function I just get www.tvstore. What am I missing? I want this to work for any TLD, whether that's .com, .org, .de, .co etc.

Protected Function ExtractDomainFromURL(ByVal sURL As String) As String
    Dim rg As New Regex("://(?<host>([a-z\d][-a-z\d]*[a-z\d]\.)*[a-z][-a-z\d]+[a-z])")
    If rg.IsMatch(sURL) Then
        Return rg.Match(sURL).Result("${host}")
    Else
        Return String.Empty
    End If
End Function

vks · Accepted Answer · 2015-05-09 05:09:59Z

1

:\/\/(?<host>([a-z\d][-a-z\d]*[a-z\d]\.)*[a-z][-a-z\d]*[a-z])

                                                     ^^

Just change the quantifier from + to *.As you have used + it is expecting a 3 letter word ,whereas you have only 2 i.e nl.See demo.

https://regex101.com/r/iV6mP5/3

answered May 9, 2015 at 5:09

vks

68.1k11 gold badges96 silver badges132 bronze badges

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

Collectives™ on Stack Overflow

Get domainname from string via regular expression

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related