Here's one possible problem:

foreach (@$data){
  $res = join (' ', @$_);
}

# should be...?

foreach (@$data) {
  $res .= "@$_";  # same as join(" ", @$_);
}
[download]

_____________________________________________________
Jeff[japhy]Pinyan: Perl, regex, and perl hacker, who'd like a (from-home) job
s++=END;++y(;-P)}y js++=;shajsj<++y(p-q)}?print:??;