[thelist] Email Validator

[Maryanna Nesina]

I tried http://tech.irt.org/articles/js049/index.htm code and example
and have a question. It doesn't allow the addresses like qq at com or qq at ru is
it right?

> From: "Lachlan Cannon" <tiedefenderdelta6 at yahoo.com>
> Subject: [thelist] Email Validator
>
>
> > here is my solution to the problem (it can be spoofed, but
> > it's more difficult than the other one. I've checked it and
> > it worked in IE6, NS6, and Op5, if anyone finds a bug or
> > has an improvement, please tell me)
> >
> > var pattern=/(^[
> >
>
\-_\.a-zA-Z0-9]+)@((([0-9]{1,3}\.){3}([0-9]{1,3})((:[0-9])*))|(([a-zA-Z0-9\-
> ]+)(\.[a-zA-Z]{2,})+(\.[a-zA-Z]{2})?((:[0-9])*)))/;
>
> I think a less restrictive pattern is better (like darren's. The simpler,
> the better). Email address validation is error prone. Check:
>
>
http://aspn.activestate.com//ASPN/Reference/Products/ActivePerl/lib/Pod/perl
> faq9.html#how%20do%20i%20check%20a%20valid%20mail%20address
>
> Specifically, IP addresses can be given as 'number.number' or 'number'
(i.e.
> not just quadruple),
> you forgot the '$' at the end, so sometimes there's only a partial match,
> and, if I got it right, your pattern accepts digits in the host name only
> (when you include the '$', of course).
>
> I use the following code:
>
> function isValidEmail(str) {
>     if (!str.replace) {
>         // broswer does not support REs
>         return (str.indexOf("@") != -1);
>     }
>     else {
>         var re = new
> RegExp("^\\s*[\\w\\-\\.]+\\@[\\w\\-]+(\\.[\\w\\-]+)+\\s*$");
>         return re.test(str);
>     }
> }
>
> (I haven't included a ":port" part.)
>
> It works on old browsers as well (it has "new RegExp", not an RE literal).
>
> The following article has some more code.
>
> http://tech.irt.org/articles/js049/index.htm
>
>
>
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