From: "Wolfgang Nádasi-Donner" <ed.odanow@...>
Date: 2008-01-17T07:03:16+09:00
Subject: Re: regular expression

Rick Denatale wrote:
> Something like this?
> irb(main):001:0> "frabelious" =~ /a.*?e.*?i.*?o.*?u/
> => 2

This doesn't work as expected...

irb(main):001:0> "xaxxixxexxixxuxxoxxuxx".match(/a.*?e.*?i.*?o.*?u/)[0]
=> "axxixxexxixxuxxoxxu"

..., because it allows all wovels in any order in the word, if there is 
one possible grouping with the wanted ordering - The subpattern "a.*?e" 
for example allows any number of "a"s, "i"s, "o"s, and "u"s between the 
"a" and the "e".

Wolfgang Nádasi-Donner
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