use strict;
my $str = 'From: Creedence Colossal <tmpwchange@gmail.com> To: "tmpwchange@gmail.com" N4EYN5DW9CT <tmpwchange@gmail.com> Subject: +14242767352 5/18/2021 9:22:23 PM Return-Path: <tmpwchange@gmail.com> Received: from [192.168.1.34] (047-232-149-032.res.spectrum.com. [47.232.149.32]) by smtp.gmail.com with ESMTPSA id x6sm4564717pfj.24.2021.05.18.21.22.51 for 9GS4C81 <tmpwchange@gmail.com> (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 18 May 2021 21:22:52 -0700 (PDT) Date: Tue, 18 May 2021 21:22:23 -0700 Message-Id: <U8F57JFLRDU4.QQL5G9PGZESZ2@DESKTOP-6PJ7AGK> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 9GS4C84 -- This 8001355 email ESMTPSA has been checked for viruses by Avast antivirus software.';
my $regex = qr/\s(?=\w*[0-9])(?=\w*[A-Z])([A-Z\d]{11}|[A-Z\d]{7})\s/p;
if ( $str =~ /$regex/g ) {
print "Whole match is ${^MATCH} and its start/end positions can be obtained via \$-[0] and \$+[0]\n";
# print "Capture Group 1 is $1 and its start/end positions can be obtained via \$-[1] and \$+[1]\n";
# print "Capture Group 2 is $2 ... and so on\n";
}
# ${^POSTMATCH} and ${^PREMATCH} are also available with the use of '/p'
# Named capture groups can be called via $+{name}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Perl, please visit: http://perldoc.perl.org/perlre.html