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Replying to myself, here is a corrected and simplified version:

#!/usr/bin/perl use Test2::V0; #FROM DATABASE TEXT my $line = "Her house is on 34th Mt. Whitney St. near St. Mt. Helens S +t."; #FROM INCOMING FORM INPUTS my $query = qr'(St\.\s)(Mt\.\s)(?=Helens)'; my $substitution = 'Mount ${1}'; # USER MAY HAVE ENTERED "$1" #FOR RETURNED HTML HIGHLIGHT OF CHANGES my $start = '<span class="highlight">'; my $end = '</span>'; my $replace = $start . $substitution . $end; eval "\$line =~ s{\$query}{$replace}g;"; die $@ if $@; is $line, 'Her house is on 34th Mt. Whitney St. near <span class="high +light">Mount St. </span>Helens St.', 'pattern substitution'; done_testing;

Greetings,
-jo

$gryYup$d0ylprbpriprrYpkJl2xyl~rzg??P~5lp2hyl0p$

In reply to Re^2: Evaluating user-entered captured groups during Perl substitution by jo37
in thread [SOLVED] Evaluating user-entered captured groups during Perl substitution by Polyglot

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