On 04/09/2010 10:40 AM, Nathan wrote:
>> "tttttattttt".match(/ttt(?=a)/) # http://rubular.com/r/21Zo6JP09f
> => ["ttt"]
>> "tttttattttt".match(/(?=a)ttt/) # http://rubular.com/r/d1VSUwwZUu
> => nil
> 
> Why? And how can I get this effect?

It seems you have just demonstrated how to get the effect you described.

For more info:

http://www.geocities.jp/kosako3/oniguruma/doc/RE.txt

Note: you need Ruby 1.9.

Kind regards

	robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/