From: Ralph Shnelvar <ralphs@...32.com>
Date: 2009-11-27T04:51:02+09:00
Subject: Pattern match to fail if two periods in a row

Ok ... I really tried.  And I used http://rubular.com/  (really nice)

And I read and reread the pickaxe book section on regular
expressions.

In other words ... I tried.

So ..

How does one create an expression that fails if there are two or more periods
(e.g. "..") in a row?