use strict;
my $str = '/git/sdf/HEAD
/git/blablabla/blabla/objects/info/sdfs
/git/daf/git-receive-pack';
my $regex = qr/(?x)^\/git\/
(
.*\/
(
HEAD|
info\/refs|
objects\/
(
info\/[^\/]+|
[0-9a-f]{2}\/[0-9a-f]{38}|
pack\/pack-[0-9a-f]{40}\.
(pack|idx)
)|
git-(upload|receive)-pack
)
)
/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