From: Joel VanderWerf <joelvanderwerf@...>
Date: 2010-10-19T02:23:06+09:00
Subject: Re: data type for a string value

On 10/17/2010 08:00 PM, Jack Su wrote:
> No, and Yes. there are a set of them, such as '1,234' and '2010-09-09'
> and '09/09/2010'. That is the point. a human can see it right away, but
> a computer will need to need to figure this out.

Regexes may not be as costly as you assume for simple formats like 
these. Or did you run benchmarks?