From: Sebastian Hungerecker <sepp2k@...>
Date: 2008-07-25T16:58:39+09:00
Subject: Re: Regexp Ruby selection

touffik@gmail.com wrote:
> I thought the .. between 2 "line =~" was like (...) in rubular which
> let catch the content ??

Generally in ruby .. denotes a range. Like starting_value .. end_value.
In this case though it denotes a flip flop, which is evil and should never 
ever be used because it makes my head hurt. Here's what it does though:
some_loop {
  do_something if foo .. bar
}
This will do nothing until foo is true. When foo is true it will do_something. 
It will then keep doing_something in every iteration of the loop until bar 
becomes true. After bar became true it will stop doing_something until foo is 
true again.
So as a summary: It doesn't do what you thought it did. As a matter of fact it 
doesn't do anything sane. So just keep as far away from it as possible.


HTH,
Sebastian
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