use strict;
my $str = '1.0.0
1.1.0
1.1.1
3.4.9
3.5.0
3.5.1
3.5.2
3.5.9
3.6.0
3.6.1
4.5.0
6.2.0
6.2.1
6.1.34
6.1.347
7.10.347
6.1.10
6.10.2
6.10.2
6.1.11
60.1.2
60.10.2
I am a string...
6.1.1234234
6.1.2
4.1.2
7..
05.34.35
0.15.54
6.1.13
94530.5435436.5435435
50.12.23';
my $regex = qr/([3]\.[5]\.([0-9]$|[1-9]\d{1,}))|([3]\.([6-9]|[1-9]\d{1,})\.\d*)|(([4-9]|[1-9]\d{1,})\.\d*\.\d*)/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