I'm assuming all the functions are logically valid, and using eval: 
use strict;
use warnings;

my (@truth, $c1, $c2, $line, $logic, $v, $c, $cref);
my $max = 4;                 ## Max number of vars

$truth[0] = '0 1';
for (1..($max-1)) {
    ($c1 = $truth[$_-1]) =~ s/(\d+)/0$1/g;
    ($c2 = $truth[$_-1]) =~ s/(\d+)/1$1/g;
    $truth[$_] = "$c1 $c2";
}
for (0..($max-1)) {
    my @comb = split(/ /, $truth[$_]);
    $truth[$_] = \@comb;
}

for (<DATA>) {
    my %vars;
    chomp($line = $_);

    @_ = $line =~ /(\w+)/g;
    $v = ''; $c = 0;
    for (sort @_) {          ## Sort and retrieve
        if ($_ ne $v) {      ## unique var names
            $vars{$v = $_} = $c++;
        }
    }

    print $line . "\n";
    print join(' ', sort {$vars{$a} <=> $vars{$b}} keys %vars) . "\n";

    $cref = $truth[scalar(keys %vars) - 1];
    for (@$cref) {
        $logic = $line;      ## Replace var names with
        $logic =~ s/(\w+)/substr($_, $vars{$1}, 1)/eg;
        print $_ . ' ' . eval($logic) . "\n";
    }                        ## logic values and evaluate
    print "\n";
}

__DATA__
((S0*B)|((!S0)*A))
((A*B)^C)

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In reply to Re: parser for evaluating arbitrarily complex boolean function in a string by TedPride
in thread parser for evaluating arbitrarily complex boolean function in a string by jce

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