Perl Regex Variables Matching Guide

In Perl, variables can be used to match regular expressions. There are two common methods to achieve this.

1. – Can you please explain that again in simpler terms?

my $string = "Hello, World!";
my $pattern = "W(o\\w+)";
if ($string =~ /$pattern/) {
    my $match = $1;
    print "Matched: $match\n";
}

In the example above, matching is done using $string =~ /$pattern/, the result is stored in the variable $1, and then the matching result is printed using the print statement.

1. Could you clarify that for me?
2. The teacher asked the students to complete the assignment by the end of the week.
3. I need to take a break.

my $string = "Hello, World!";
my $pattern = "W(o\\w+)";
if ($string =~ m/$pattern/) {
    my $match = $1;
    print "Matched: $match\n";
}

In the example above, matching is done with $string =~ m/$pattern and the result is stored in the variable $1, then using a print statement to output the matching result.

Using either the =~ operator or the m// operator, you can store the matching results in a variable for further manipulation.