Abigail is (as usual) correct. However, if I were doing this, I'd code that as: 
    my $goodnames = qr/@{[join '|', map "\Q$_", sort @names]}/;

[download]
Or, if I were golfing: 
    my $goodnames = qr/@{[join'|',map"\Q$_",sort@names]}/;

;-)

[download]

And, if I were going to be interpolating arrays into regexes on a regular basis, I'd probably modularize the process thus: 

    use Interpolation 
        OR => sub { join '|', map "\Q$_", sort @{$_[0]} };
 
    # and later...

    my $goodnames = qr/$OR{\@names}/;

[download]

BTW, arrays will interpolate disjunctively in Perl 6, so eventually you'll be able to just write: 

    # Perl 6 code
    my $goodnames = /@names/;

[download]

Yet another feature for Abigail to not be impressed by, I guess. ;-)

In reply to Re: Re: Good Idiom for Matching List? by TheDamian
in thread Good Idiom for Matching List? by John M. Dlugosz

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