Re: Search method or RegExp?

RobG wrote:
[...] "Ben Amada" [...] wrote:
Hi all. I know very little about regular expressions, but wanted to use one
to validate an email address a user would be entering before the form is
submitted.

Rigorous validation of e-mail address is impossible,

Correct, client-side. Server-side you stand a very good chance.

the best you can do client-side is a rough test

It would not be too difficult to implement the address specification of
RFC2822 in a Regular Expression though. I have done that twice or more
now here, so searching the archives is probably not a bad idea.

then send an email to the address to verify it.

It has been my observation that is possible server-side to get a reliable
test result in most cases without sending an e-mail, using an automated
SMTP probe, provided the testing server is, or has access to, a properly
configured MX.

But, as you say, only sending an e-mail and having the receiver confirm
it can make sure that e-mails to the mailbox are actually read.


PointedEars
--
var bugRiddenCrashPronePieceOfJunk = (
navigator.userAgent.indexOf('MSIE 5') != -1
&& navigator.userAgent.indexOf('Mac') != -1
) // Plone, register_function.js:16
.

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