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List: ruby-talk
Subject: Re: [NEWBIE] Extract all occurences from a text
From: gabriele renzi <surrender_it () rc1 ! vip ! ukl ! yahoo ! com>
Date: 2004-04-23 13:54:05
Message-ID: aj7i80t7cqdbr0ldl91oev48surr73ch4e () 4ax ! com
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il Fri, 23 Apr 2004 15:43:24 +0200, Kristof Bastiaensen
<kristof@vleeuwen.org> ha scritto::
>On Fri, 23 Apr 2004 05:08:00 -0700, David Alan Black wrote:
>
>>>
>>> you could simply do:
>>>
>>> lines=[]
>
>This line has no effect, the Array will be discarded
>at the next expression
>
>>> open(filename) do |f|
>>> lines= f.grep your_regexp
>>> end
>>
just try it ;P
If you do not initialize a variable outside of a block it will be
discarded when the block ends.
This will change in ruby2 and work like you expect (I expect the
behaviour it has ATM)
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