Aldric Giacomoni wrote:
> Robert Walker wrote:
>> 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.
> 
> The best approach is to download a plugin for email validation, because 
> someone, somewhere, has already done all the work ;-)

I wouldn't trust those plugins without inspecting their algorithms.  I 
would probably use something like the following regex:
/^...@.+\..+$/

This checks that it's of the form "[email protected]", but 
performs no further validation.

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
[email protected]
-- 
Posted via http://www.ruby-forum.com/.

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