From: Gavin Kistner <gavin.kistner@...>
Date: 2006-10-18T05:37:23+09:00
Subject: Re: Splitting a sentence with delimiter preserved

From: Ajithkumar Warrier [mailto:a.varier@gmail.com] 
> I am a newbie and the answer to this might be too simple.
> How do I improve the example below and reduce the number of passes
> over the string?
> 
>  string =  "This is an example string.  The purpose is to save the
> delimiter during split. Does this work.  Great!!!."
> 
> re = /(\.\s+)(\D)/
> string.gsub!(re,'\1'+'#'+'\2')
> b = string.split('#')
> puts b

p string.scan( /\w[^.!?]+\S+/ )

#=> ["This is an example string.", "The purpose is to save the delimiter
during split.", "Does this work.", "Great!!!."]