Given the following code:

#!/usr/bin/perl
use strict;
sub test($);

test 'a';
test 'z';
test 'xyz';
test 'az';

sub test($) {
    my $s = shift;
    print $s =~ /[xyz]/ ? "$s matches\n" : "$s does not match\n";
}
[download]

I want all characters tested against the RE character class to match in order for the overall string to match. String 'az' matches above whereas I want the presence of character 'a' to cause the overall string to fail as the following code does correctly:

#!/usr/bin/perl
use strict;
sub test($);

test 'a';
test 'z';
test 'xyz';
test 'az';

sub test($) {
    my $s = shift;
    for my $c (split '', $s) {
        if ($c !~ /[xyz]/) {
            print "$s does not match\n";
            return;
        }
    }
    print "$s matches\n";
}
[download]

Is there a simpler way with regular expressions to accomplish what I want?

Thanks.

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