From: Steve Klabnik Date: 2011-03-12T08:44:11+09:00 Subject: Re: Is an elsif loop possible? --001636ed6be8d6c7d3049e3d89c9 Content-Type: text/plain; charset=ISO-8859-1 Agreed, especially in this instance. You want to process until the input is correct. 'while not' is just awkward. --001636ed6be8d6c7d3049e3d89c9--