How does lookahead and lookbehind interact with Unicode and encodings?

In Perl, lookahead and lookbehind assertions allow you to check for patterns without consuming characters in the string being matched. When working with Unicode and different encodings, it's important to ensure that your regex patterns are properly defined to account for multi-byte characters and ensure accurate matching.

Perl, Regex, Lookahead, Lookbehind, Unicode, Encoding


# Example of lookahead and lookbehind in Perl
use strict;
use warnings;
use feature 'say';

my $string = 'example ñ泡テスト characters';
if ($string =~ /(?<=example\s)(?=\S)/) {
    say "Lookbehind and lookahead test passed!";
}

Perl Regex Lookahead Lookbehind Unicode Encoding

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