ikegami wrote:
$replace contains a template. Therefore, you need a template engine to process it.
Aw /gee whiz, we don’t need no stinkin’ modules for such a trivial task. Merely render unto Perl that which is Perl’s: 
use v5.14;
my $string  =  q/ABC/;
my $search  = qr/^(A)/;
my $replace =  q/"Z\l$1Z"/;
$string =~ s/$search/$replace/gee;
say $string;

[download]
Which when run duly prints out ZaZBC.

In reply to Re^3: Interpolate into replacement with s//? by tchrist
in thread Interpolate into replacement with s//? by philkime

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