$var[0] = "Gallia est omnis divisa in partes tres";
$var[1] = "Gallia est omnis divisa in ...";
$var[2] = "Gallia est omnis ...";
$var[3] = "Gallia";
$var[4] = "... omnis divisa in ...";
$var[5] = "Gallia est ... tres";
$var[6] = "Gallia ... partes tres";
$var[7] = "Gallia est ... partes tres";
$var[8] = "Gallia ... divisa ... tres";
$var[9] = "... tres";
$var[10] = "quattuor";

##</code><code>##

for ($i=0;$i<=$#var;$i++) {
    $var[$i] =~ s/\.\.\./\.\+/g;
    
    for ($j=$i+1;$j<=$#var;$j++) {
        $var[$j] =~ s/\.\.\./\.\+/g;

        if ($var[$i] !~ m/$var[$j]/) {
            print "$i-$j:\t[$var[$i]] and [$var[$j]] DO NOT MATCH!\n";
        }
    }  
}