From: Robert Klemme <shortcutter@...>
Date: 2008-12-07T20:08:44+09:00
Subject: Re: Proximity searches in Ruby

On 06.12.2008 14:30, Robert Dober wrote:
> On Sat, Dec 6, 2008 at 2:06 PM, Michael Fellinger <m.fellinger@gmail.com> wrote:
>>> File::read("test.data").scan  %r{Hello.{0,10}World}im
>> That would be 10 characters
> Huh??

I guess Michael's point was that your version is not a scaled down 
version of mine because it defines "proximity" differently: your version 
uses character count while my version uses word count.

Another difference is that in your case order matters.  Here's an 
attempt to fix both:

# untested
s.scan %r{
   \b
   (?:
       hello\W+(?:\w+\W+){0,10}world
   |   world\W+(?:\w+\W+){0,10}hello
   )
   \b
}mix

Cheers

	robert