Question

Hi I want to be able to set the regular expression to allow for dates to be entered like this

01/01/1900 or 01/01/70, I have the following but not sure how to make it so that it takes 4 or 2 at the end.

^([1-9]|0[1-9]|1[012])[- /.]([1-9]|0[1-9]|[12][0-9]|3[01])[- /.][0-9]{4}$

The other one I would like to know is for URL

This one I have no idea how do I make it so that it matches correct URL’s?

Thank you

Answer 1

This should match two our four digit numbers:

\d{2}(\d{2})?

Your full regex would be something like this:

^([1-9]|0[1-9]|1[012])[- /.]([1-9]|0[1-9]|[12][0-9]|3[01])[- /.]\d{2}(\d{2})?$

URLs are hard to test. http://localhost is a valid URL and so it https://test.example.co.uk:443/index.ece?foo=bar. I would look for something in your language to test this for you or do a very simple test like this (you will have to delimit some special chars depending on the regex engine you use):

^https?://