If you have a small number of different conditions, you may wish to use a dispatch table.

use strict;
use warnings;

my %condition = (
  '(A&B)|(C&D)' => sub {
        my ($aa, $bb, $cc, $dd) = @_;
        return ($aa && $bb ) || ($cc && $dd );
  },
  'A|(B&C&D)' => sub {
        my ($aa, $bb, $cc, $dd) = @_;
        return $aa || ($bb && $cc && $dd );         
  }
);

my @flags = qw( 0 1 1 1 );

my @conditions_to_check = (
    'A|(B&C&D)', 
    'FOO', 
    '(A&B)|(C&D)' 
 );

for my $cond_name ( @conditions_to_check ) {
    
    if( exists $condition{$cond_name} ) {
        
        if ( $condition{$cond_name} ->(@flags) ) {
            print "Condition '$cond_name' is true\n" 
        }
        else {
            print "Condition '$cond_name' is false\n" 
        }
    }
    else {
        print "Condition '$cond_name' is not defined\n";
    }
}

__DATA__
Condition 'A|(B&C&D)' is true
Condition 'FOO' is not defined
Condition '(A&B)|(C&D)' is true

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TGI says moo

In reply to Re^5: Using a stored condition by TGI
in thread Using a stored condition by legend

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