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> -----Original Message-----
> From: list-bounce / example.com 
> [mailto:list-bounce / example.com] On Behalf Of Peter Bailey
> Sent: Monday, August 13, 2007 12:00 PM
> To: ruby-talk ML
> Subject: confused by back refs in gsub
> 
> Can someone tell me why, in my code below, I'm getting part 
> of the original search in my substitution in my result, when, 
> I'm not asking for it, or at least, I don't think I'm asking for it.
> 
> Thanks,
> Peter
> 
> 
> Original line:
> <registrantName>Normandy Group LLC</registrantName>
> 
> My Code:
> xmlfile.gsub!(/<registrantName>(.*)<\/registrantName>/,
> '<SUB.HEAD4>\&</SUB.HEAD4>')
> I've tried "\1" instead of "\&," too. Same result. I've also 
> tried putting in "?" marks to make it non-greedy. Same result.
> 
> Yields:
> <SUB.HEAD4><registrantName>Normandy Group 
> LLC</registrantName></SUB.HEAD4>
> 
> What I want:
> <SUB.HEAD4>Normandy Group LLC(/SUB.HEAD4>
> --
> Posted via http://www.ruby-forum.com/.
>

If you're hardcoding replacements like that and are certain that your source
is well formed xml, you could also just skip the back references:

irb(main):001:0> "<registrantName>Normandy Group
LLC</registrantName>".gsub!(/registrantName>/, 'SUB.HEAD4>')
=> "<SUB.HEAD4>Normandy Group LLC</SUB.HEAD4>"
irb(main):002:0> 

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