From: Eero Saynatkari <eero.saynatkari@...>
Date: 2006-08-12T13:29:16+09:00
Subject: Re: String#split(/\s+/) vs. String#split(/(\s+)/)

Sam Kong wrote:
> Hello Rubyists,
> 
> I'm reading Ruby Cookbook.
> The first chapter is about String.
> One of the examples shows the differenct between String#split(/\s+/) and 
> String#split(/(\s+)/) without much explanation.
> I understand what sub-grouping is in regex.
> Bug I don't understand what role that plays in String#split.
> 
> s = "one two  three"
> 
> p s.split(/\s+/) #=> ["one", "two", "three"]
> p s.split(/(\s+)/) #=> ["one", " ", "two", "  ", "three"]

 # Try this one
 p s.split /((((\s+))))/

> 
> Could anybody explain it, please?
> 
> Thanks,
> Sam


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