use strict;
my $str = 'RIGHT:
*
DE*
de*
GB5*
gb5*
DE*123
DE**123
de*123
DE123456
WRONG:
**
*DE
*de
D
D*
D**
d*
DE
DE123
DE123**
de
D1*
1
1*
123*
1234
DE1234567
DE123456*';
my $regex = qr/^([A-Za-z]{2}[0-9*]{0,6}|\*)$/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