use strict;
my $str = '12345678
adfghj
AASDFGHJ
!@#$%^&
1234as
1234ASDF
1345!#$%
asdfg!@#$
ASDFGB!#$$
SSRasd
Goodone123
G00done!@#
1@a
Aa1
must have 3 of 4:
Contain Numbers
Contain a-z
Contain A-Z
contain special characters !@#$%^&*()_+
';
my $regex = qr/^ # Start of line
(?: # Start of the alternation group
(?=.*\d)(?=.*[a-z])(?=.*[A-Z]) # Conditions 1, 2, 3
|
(?=.*\d)(?=.*[a-z])(?=.*[!@#$%^&*()_+]) # Conditions 1, 2, 4
|
(?=.*\d)(?=.*[A-Z])(?=.*[!@#$%^&*()_+]) # Conditions 1, 3, 4
|
(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&*()_+]) # Conditions 2, 3, 4
|
(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&*()_+]) # Conditions 1, 3, 4
)
.* # The line itself is matched
$ # Up to the end of line/xmp;
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