From: Lloyd Zusman <ljz@...>
Date: 2009-03-18T04:52:08+09:00
Subject: Re: Interpolating $1, etc., from within a gsub block

Lloyd Zusman <ljz <at> asfast.com> writes:

> [ ... ]
>
> string.gsub!($fromre) {
>   |x|
>   $replcount += 1
>   $repl
> }
> 

Well, I came up with the following, but I'm still wondering if there
is a more elegant way to do this:

string.gsub!($fromre) {
  |x|
  $replcount += 1
  eval "$result = \"#{$to}\""
  $result
}

Then, I have to invoke my program as follows:

myprog 'abc(\S+)def' 'NEW-#{$1}-MATCH'

Is this the best I can do, or is there something more elegant?

Thanks.

-- 
 Lloyd Zusman
 ljz@asfast.com
 God bless you.