CGI.pm and form validation

[Smith, Jim R]

I've created a CGI program that asks a user to fill in a number of fields.
I would like to validate that the required data is present and in correct
format.
A date, time, phone number, Ip Address etc.
Obviously I could code a number of regex's, but I was wondering if there was
a module or script
that I could use along with CGI.pm.
Any Suggestions ?
Regards,
JimBob