I use this script for practicing regex: 

#!/usr/bin/env perl
use strict;
use warnings;
use 5.014;

my $string;
my $pattern;

while ( ( say "Input template string:" ) && ( $string = <> ) ) {
    while ( ( say "Input pattern:" ) && ( $pattern = <STDIN> ) ) {
        chomp $pattern;
        my $regex = qr/$pattern/p;
        $string =~ $regex;
        say "${^PREMATCH} \x{25a0}\x{25a0}${^MATCH}\x{25a0}\x{25a0} ${
+^POSTMATCH}";
    }
}

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In reply to Regex practice script by kindlychung

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