PHP has such function, i suppose perl have one too.
If its complient i dont know.

>
> Hi!
>
> I need a regular expression (as simple as possible) for checking the
> validity of an http://../ URL. I need it to conform with DNS, HTTP and URL
> RFCs as much as possible without being too complex.
>
> Regards,
>
> Shlomi Fish
>
>
>
> ----------------------------------------------------------------------
> Shlomi Fish        [EMAIL PROTECTED]
> Home Page:         http://t2.technion.ac.il/~shlomif/
> Home E-mail:       [EMAIL PROTECTED]
>
> "Let's suppose you have a table with 2^n cups..."
> "Wait a second - is n a natural number?"
>
>
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