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Wednesday, March 10, 2010


[Rails] Re: Is there a rails way to validate format of an email addr

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Marnen Laibow-Koser wrote:
> Robert Walker wrote:
>> Rajinder Yadav wrote:
>>> How can I validate and email address without using complex reg-ex is
>>> there a simple rails way to do this?
>>
>> Are you nuts? That's just the sort of thing Regexp was designed to do.
>> And, it's not really all that complex.
>
> Yes it is. The *only* correct regexps I am aware of for e-mail
> addresses are on the order of a page in length. All shorter regexps
> reject some valid e-mail addresses.

Thanks Marnen. I stand corrected.

However, just to clarify, are you saying that Regexp is still the best
approach? Given that what you're saying is true, which I'm sure it is,
then I could imagine that performing this validation without using
Regexp would be even more complex and require quite a bit more code.
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