help needed to create Regular expression

Question

need help to create regular expression matching string

www.*.abc.*/somestring

Here * is wild card it can be anyhing like us, uk

or com, edu

like

 www.us.abc.com/somestring
www.uk.abc.edu/somestring

Answer 1

www\.([a-z]{2})\.abc\.(com|edu)/(.+)

You can then extends this regex to include other valid generic top-level domain name (net, org, ...)

www\.([a-z]{2})\.abc\.(com|edu|org|net)/(.+)

You will get the Country code top-level domain in the group number 1, the top-level domain in group 2.

Answer 2

If it's a URL, it can match any a-z character, or 0-9, or a dash (-). Each component has at least one character, so use + as the multiplier. Currently, tlds are only a-z, but this regex is a bit more robust (you never know!):

/www\.[-a-z0-9]+?\.abc\.[-a-z0-9]+?\/somestring/

It assumes nothing about the length of each component, and that it's all lowercase.

Answer 3

Put [^.]+ instead of asterisks and \. instead of dots, and you'll be done.

www\.[^.]+\.abc\.[^.]+/somestring

[^.] matches any non-dot, [^.]+ matches a string of nondots with at least one character. \. matches a dot, because . matches any character.

Answer 4

Try the following regular expression:

^www\.\w+\.abc\.\w+\/\w+$

Answer 5

Something like that:

www\.\w+\.abc\.\w+\/somestring

I do recommend to use this Online RegEx builder to learn how it works