A CPAN search finds Regexp::Genex. It doesn't seem to support character classes, but this is close: 
use warnings;
use strict;

use Regexp::Genex qw(:all);
print "$_ " for strings('abc(0|p|z)');
print "\n";

__END__

abc0 abcp abcz

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In reply to Re: CPAN module for generating regexp matches by toolic
in thread CPAN module for generating regexp matches by bgu

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