use strict;
my $str = 'HSIT9
8411.ABC
8411.T
HCEIU-A9
8345.SI';
my $regex = qr/^(?!.*(?:[0-9]{4,5}\.FU|[0-9]{4,5}\.NG|[0-9]{4,5}\.SP|[0-9]{4,5}\.T|JGB[A-Z][0-9]|JNI[A-Z][0-9]|JN4F[A-Z][0-9]|JNM[A-Z][0-9]|JTI[A-Z][0-9]|JTM[A-Z][0-9]|NIY[A-Z][0-9]|SSI[A-Z][0-9]|JNI[A-Z][0-9]-[A-Z][0-9]|JTI[A-Z][0-9]-[A-Z][0-9]|[0-9]{4,5}\.HK|HSI[A-Z][0-9]|HMH[A-Z][0-9]|HCEI[A-Z][0-9]|HCEI[A-Z][0-9]-[A-Z][0-9]|\.SI|SFC[A-Z][0-9])).+/mp;
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