use strict;
use Memoize;
memoize ('read_files');
sub process_files
{
    my $dir_path = shift;
    if (opendir(TEST, $dir_path))
    {
        my @files = sort grep{$_ ne '.' and $_ ne '..'} readdir(TEST);
        #print "\n@files[0]\n";
        read_files("$dir_path\\$_") foreach (@files);
    }
    else
    {
        die ("Could not Opendir $dir_path: $!\n");
    }closedir TEST;
}
sub read_files 
{ 
    my $file_path = shift;
    if (-f $file_path)
    {
        print (DATA "$file_path\n") if ($file_path !~ /(\.lfa|\.zip|\.txt|UASTG)$/);
    }
    else
    {
        die ("Could not open[$file_path], $!\n");
    }
}