From: James Edward Gray II <james@...>
Date: 2005-02-12T05:06:25+09:00
Subject: Re: Currency formatting with regexp

On Feb 11, 2005, at 1:46 PM, Jim Van Fleet wrote:

> It sure did, and cut my LOC count in half.

Good news.

> What does \1 signify, exactly?  Is this the active matched section of 
> the source string at the time?

In a replacement string, \N is equivalent to Perl's $N variables.  
Outside a replacement string, you can $N variables directly.  You can 
also use them in the block form of gsub().

Hope that clears it up.

James Edward Gray II