use strict;
my $str = 'Error
at getCallerTag (http://localhost:4577/js/base/logger.js:31:17)
at Object.logIt (http://localhost:4577/js/base/logger.js:25:18)
at Object.debug (http://localhost:4577/js/base/logger.js:11:12)
at HTMLInputElement.updateFileNames (http://localhost:4577/js/modules/pdf.js:12:11)
at HTMLInputElement.n.event.dispatch (http://localhost:4577/vendor/js/jquery-2.2.3.min.js:3:7537)
at HTMLInputElement.r.handle (http://localhost:4577/vendor/js/jquery-2.2.3.min.js:3:5620)
> match[1] = \'updateFileNames\', match[2] = \'modules\', match[3] = \'pdf\', match[4] = \'12:11\'
Error
at getCallerTag (http://localhost:4577/js/base/logger.js:31:17)
at Object.logIt (http://localhost:4577/js/base/logger.js:25:18)
at Object.debug (http://localhost:4577/js/base/logger.js:11:12)
at Object.Foo (http://localhost:4577/js/base/components.js:75:21)
at HTMLInputElement.n.event.dispatch (http://localhost:4577/vendor/js/jquery-2.2.3.min.js:3:7537)
at HTMLInputElement.r.handle (http://localhost:4577/vendor/js/jquery-2.2.3.min.js:3:5620)
> match[1] = \'Foo\', match[2] = \'base\', match[3] = \'components\', match[4] = \'75:21\'';
my $regex = qr/at .*\.(\w*) \(.*js\/(\w*)\/(?!logger)(\w*)\..{2,4}:(\d*:\d*)\)/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