From: "David A. Black" <dblack@...>
Date: 2004-03-17T02:20:51+09:00
Subject: Re: reg multi match replace

Hi --

On Wed, 17 Mar 2004, Paul Vudmaska wrote:

> David A. Black wrote:
>
> >Another small suggestion:  it doesn't look like you need two captures (unless
> >you're doing something with $1 that isn't revealed here):
> >
> >  @value.gsub!(/(\{\{(.+?)\}\})/) { @values[$1] }
> >
> >                      ^^^ 
> >                      (or \w+? if wanted)
> >
> >
> >David
> >
> >  
> >
> Thanks David, Soon after i fired the email i noticed it did not work on 
> lines with 2 tokens {{one}} {{two}} so adding the ? worked great!  About 
> the inner capture, the outer one matched {{match}} and i needed just the 
> name - match - which matches the hash i pass to the template 
> {'match'=>'match value'}. Using @values[$2] matched the inner one. To be 
> honest, i did not know what $2 was, when i was considering my 
> options(like replacing {}), but then i thot "there's a $1 there must be 
> a $2" - and it worked after i put the inner capture.  i thot it was 
> great -and  a testament to the goodness of all this! The names that will 
> be in the tokens and hashes will be like 'name', 'client.name'. So per 
> your suggestion  i changed it to /(\{\{([\w\.]+?)\}\})/ which 
> accomodates the dot and is more concise to boot. Appreciate your help :0)

The thing is, you don't need an inner and outer match in the first
place, if all you want is the inner stuff.  You're just saving an
extra piece of data that you're not using.


David

-- 
David A. Black
dblack@wobblini.net