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Re: [FWP] IP address regex golf

On Fri, Apr 28, 2000 at 11:24:27PM -0500, Keith Calvert Ivey wrote:

> That doesn't work.  Try 512.1.1.1, for example, or anything 
> else that has a number greater than 256 without the 256 bit 
> set.  Try this:

You have to negate the 255:

	/(\d+)\.(\d+)\.(\d+)\.(\d+)/ && !((1 | $1 | $2 | $3 | $4) & ~255

should do the trick.

  Holger


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