Would: 1. 12 .13. 14 089.23.45.67 Both match that? (Your general point is made though - RegExes look fine to the person that just crafted them, but are

Would: 1. 12 .13. 14 089.23.45.67 Both match that? (Your general point is made though - RegExes look fine to the person that just crafted them, but are opaque to the casual observer)