Re: Error validating email addresses in Core Data
Re: Error validating email addresses in Core Data
- Subject: Re: Error validating email addresses in Core Data
- From: Kyle Sluder <email@hidden>
- Date: Fri, 15 Apr 2011 08:17:35 -0700
On Apr 15, 2011, at 6:30 AM, Michael Crawford <email@hidden> wrote:
> I'm trying to validate email addresses in Core Data but the regular expression I'm using doesn't seem to work even though it looks correct. I'm using the following expression:
>
> ^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$
>
You cannot validate emails using a regular expression. They cannot describe all valid email addresses.
Even as a basic sanity check, your regexp is incorrect. It fails to allow for plus signs, for example, thus prohibiting use of Gmail's plus-addressing feature, which sends all mail addressed to email@hidden to email@hidden.
--Kyle Sluder_______________________________________________
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