[MacPerl-WebCGI] Out of Memory! Am I looping it "too far"? Handling readdir with some subdirs.

[Jimmy Lantz <webmaster@ostas.lu.se>]

Hi 
I have this code where I try to read a folder,
and then exclude some files/folders. So far so good this part works fine.
But then I want to take the rest of the files and check them if they are
folders or files
if they are folders then I need to read them as subfolders an re-read
the for files and subsubfolders,
if they are files I need to push them into the array filelist containing
all the filenames in the directory and subdirectories.
When I run this script I just get a OUT OF MEMORY.
Where am I looping it? 
I feel Like I'm spamming all of you with a lot of questions.
I will return soon with a summery of all of yours replies on my earlier
question about :
Putting hash values in an array and checking that with an foreach is not
working .....

Thanks a lot for all your help with Ideas and pointers.
I'm still just in the beginning phase of my "perl"ing. (A.K.A Major Newbie)

Yours sincerely
Jimmy Lantz
Sweden


#!perl 
#########
#Macperl!
########
$infolder = 'Server G4:DATABAS:';
# Exclude the following files/folders.
@exfiles = ('data');
#####################

opendir(DIR, "$infolder") or die "cannot open $infolder";
@files = readdir(DIR);
closedir(DIR);

&do_exclude;

foreach $file (@files) {
&do_readdir("$file");
} 

print @filelist;

exit;

###########################
sub do_readdir

{
my($specfile) = @_ ;

if ($specfile !~ m/$infolder/) #otherwise add the maindir
{
my($adress) = $infolder . $specfile;
}
else
{
my($adress) = $specfile;
}

if (-d "$adress") 
{
&do_readsubdir("$adress");
 }
else
 {
push(@filelist, "$adress");
 }

}

######################
sub do_readsubdir

{
my($specfolder) = @_ ;

opendir(DIR, "$specfolder") or die "cannot open $specfolder";
my(@subfiles) = readdir(DIR);
closedir(DIR);

foreach $subfile (@subfiles) {
&do_readdir("$subfile");
}

}

####################

sub do_exclude #This ones works fine from perlfaq4!
{
@union = @intersection = @difference = ();
%count = ();
foreach $element (@files, @exfiles) { $count{$element}++ }
foreach $element (keys %count) {
  push @union, $element;
  push @{ $count{$element} > 1 ? \@intersection : \@difference }, $element;
  }
@files = @difference; # assign the difference to @files
}

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