use strict;
my $str = 'class test1
{
}
public class test1
{
}
public class test1
{
}
public class test1
{
}
public class test1:sdfsdf
{
}
public class test1 :sdfsdf
{
}
public class test1 :sdfsdf{}
public class test1 :sdfsddf{}
public class test11 :sdfsdf{}
public class test11 :sdfsdf
{
}
public class test11
{
}
public class test11 :sdfsdfsdf {}';
my $regex = qr/.*(class)\s*test1(\s|(\s*:|:))/p;
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