How do you use regex best practices with a short example?

regex, perl, best practices, pattern matching, regular expressions

This article discusses best practices for using regular expressions in Perl, with a focus on efficient pattern matching and code readability.

# Example of using regex in Perl
# This script checks if a string contains only digits
my $string = "12345";
if ($string =~ /^\d+$/) {
    print "The string contains only digits.\n";
} else {
    print "The string contains non-digit characters.\n";
}

regex perl best practices pattern matching regular expressions