From: Brian Candler <b.candler@...>
Date: 2010-03-01T22:56:59+09:00
Subject: Re: gsub for string

Robert Klemme wrote:
> You can match arbitrary characters and use capturing groups
> 
> str.gsub(/--([^-]+)--/, '-\\1--1')

which you can also do in a block form, which is sometimes clearer and 
lets you do things like modifying xxxx.

str.gsub(/--([^-]+)--/) { "-#{$1}--1" }
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