On Wednesday, May 1, 2002, at 12:43 , McElwee, Shane wrote:
> Below I've a regular expression that checks the syntax of an email
> address.
> The problem I'm having is with the underscore "_" . I've tried some
> different forms of syntax but I know its something simple I'm missing. I
> think I've been looking at it too long. The validator should allow
> usernames with periods and underscores. Any ideas?
>
> next if (!/^[\w][\w\._-]*@[\w\.-]+$/)
since john has pointed out the need to guard the "@" -
let me suggest and underscore the 'unless' syntax -
unless (<Conditional>) == if ( !<Conditional>)
At which point you might want to look at:
http://examples.oreilly.com/regex/email-opt.txt
which provides a lovely regular expression solution
for this classic problem....
since if you follow John's advice on the faq - you will
notice that you are wandering into the classically simplistic
regEx that will also blow away some 'legitimate' RFC822 and
RFC2822 compliant email addresses -
ciao
drieux
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