#!/usr/bin/perl
use strict; use warnings;

tr/\r\n//d for my $string = do { local $/; <> }; # slurp STDIN

printf "leader %s middle %s trailer %s\n", $1, $2, $3
  while $string =~ /(?<=(.....))CCCC(.{10})AGA(?=(.....))/g;

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In reply to Re: Regular expressions across multiple lines by Anonymous Monk
in thread Regular expressions across multiple lines by abcd

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