try "bar$1"?


update:
Won't give an error but doesn't work...
I assume you need the outpur blah barfoo blah like the regex: s/(foo)/bar$1/does...
this created foo bar blah...

weird thing is that the parentheses are evaluated correctly in the regex: this works: 
my $regex = ['(foo)','bar'];
$string =~ s/$regex->[0]/$regex->[1]$1/;

[download]


update2:
dave_the_m was quicker and right, it's 
#!/usr/bin/perl
use strict;

my $regex = ['(foo)', '"bar$1"' ];
my $string = 'blah foo blah';
$string =~ s/$regex->[0]/$regex->[1]/ee;
print "$string\n";

[download]
"We all agree on the necessity of compromise. We just can't agree on when it's necessary to compromise." - Larry Wall.

In reply to Re: Regex Substitution, Interpolating on the RHS? by jbrugger
in thread Regex Substitution, Interpolating on the RHS? by Cody Pendant

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.