Hmmm... That looks like it should be correct, yes (like I said, I'm no good at regular experessions, but it looks right to me), but it's still not working. Let me just post the whole stupid program to give you an idea what I am trying to do:

#!/usr/local/bin/perl

$fl = '-?\d+\.\d+';

$evalme = q[
while(<>) {
        s/^ //;
        if(^HISTOGRAM OF\s*\*\s*(\w+)$/) {
                printf ("In loop.\n"); #just here for testing purposes
+.
                write if $header;
                undef($cache);
                $header=$1;
                $varnum=$2;
        }
        if($header) {
];
eval <<EOM;
        $evalme
            (\$meanH, \$usersH) = (\$1, \$2) if /^GROUP\\s+(\\S+)\\s+(
+\\S+)/;
            (\$mean, \$users) = (\$1, \$2) if /^MEAN\\s+(${fl})\\s+(${
+fl})/;
            \$levene = \$1 if /\\s+VARIABILITY\\s+${fl}\\s+(${fl})/;
            \$pooled = \$1 if /\\s+POOLED    T\\s+${fl}\\s+(${fl})/;
            \$separate = \$1 if /\\s+SEPARATE  T\\s+${fl}\\s+(${fl})/;
            \$mann = \$1 if /\\s+MANN-WHIT.\\s+${fl}\\s+(${fl})/;
        }
}
EOM
write STDOUT;

format STDOUT_TOP =
          |  @||||   |  @||||   | Levene-P | Pooled-P | Mann-P   | Sep
+arate
            $meanH,   $usersH
----------+----------+----------+----------+----------+----------+----
+------
.

format STDOUT =
@<<<<<<<< | @##.#### | @##.#### | @##.#### | @##.#### | @##.#### | @##
+.####
$header,    $mean,     $users,    $levene,   $pooled,   $mann,     $se
+parate
----------+----------+----------+----------+----------+----------+----
+------
.
[download]

It reads through the input file until it finds HISTOGRAM OF and then begins pulling out the data as per above. Does any of it work? Well, I don't know, I still can't get this one stupid thing to work.