use strict;
my $str = '13245DE
1324
13245 DE
13245-DE
13245-de
13245 de
DE 13245
DE-13245
de 13245
de-13245
132
123456
12345 d
d 12345
asdf';
my $regex = qr/([a-zA-Z]{2})?[\s-]*[0-9]{4,5}[\s-]*([a-zA-Z]{2})?/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